cac-fronted/node_modules/@vue/compiler-sfc/dist/compiler-sfc.js

'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

var require$$0 = require('source-map');
var parser$1 = require('@babel/parser');
var url = require('url');
var path = require('path');
var require$$0$1 = require('fs');
var require$$2 = require('util');

function _interopDefaultLegacy (e) { return e && typeof e === 'object' && 'default' in e ? e : { 'default': e }; }

var require$$0__default$1 = /*#__PURE__*/_interopDefaultLegacy(require$$0);
var path__default = /*#__PURE__*/_interopDefaultLegacy(path);
var require$$0__default = /*#__PURE__*/_interopDefaultLegacy(require$$0$1);
var require$$2__default = /*#__PURE__*/_interopDefaultLegacy(require$$2);

var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};

function getDefaultExportFromCjs (x) {
	return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, 'default') ? x['default'] : x;
}

var splitRE$2 = /\r?\n/g;
var emptyRE$1 = /^\s*$/;
var needFixRE = /^(\r?\n)*[\t\s]/;

var deIndent = function deindent (str) {
  if (!needFixRE.test(str)) {
    return str
  }
  var lines = str.split(splitRE$2);
  var min = Infinity;
  var type, cur, c;
  for (var i = 0; i < lines.length; i++) {
    var line = lines[i];
    if (!emptyRE$1.test(line)) {
      if (!type) {
        c = line.charAt(0);
        if (c === ' ' || c === '\t') {
          type = c;
          cur = count(line, type);
          if (cur < min) {
            min = cur;
          }
        } else {
          return str
        }
      } else {
        cur = count(line, type);
        if (cur < min) {
          min = cur;
        }
      }
    }
  }
  return lines.map(function (line) {
    return line.slice(min)
  }).join('\n')
};

function count (line, type) {
  var i = 0;
  while (line.charAt(i) === type) {
    i++;
  }
  return i
}

const emptyObject = Object.freeze({});
const isArray = Array.isArray;
// These helpers produce better VM code in JS engines due to their
// explicitness and function inlining.
function isUndef(v) {
    return v === undefined || v === null;
}
function isDef(v) {
    return v !== undefined && v !== null;
}
function isTrue(v) {
    return v === true;
}
function isFalse(v) {
    return v === false;
}
/**
 * Check if value is primitive.
 */
function isPrimitive(value) {
    return (typeof value === 'string' ||
        typeof value === 'number' ||
        // $flow-disable-line
        typeof value === 'symbol' ||
        typeof value === 'boolean');
}
function isFunction(value) {
    return typeof value === 'function';
}
/**
 * Quick object check - this is primarily used to tell
 * objects from primitive values when we know the value
 * is a JSON-compliant type.
 */
function isObject$1(obj) {
    return obj !== null && typeof obj === 'object';
}
/**
 * Get the raw type string of a value, e.g., [object Object].
 */
const _toString = Object.prototype.toString;
function toRawType(value) {
    return _toString.call(value).slice(8, -1);
}
/**
 * Strict object type check. Only returns true
 * for plain JavaScript objects.
 */
function isPlainObject(obj) {
    return _toString.call(obj) === '[object Object]';
}
/**
 * Check if val is a valid array index.
 */
function isValidArrayIndex(val) {
    const n = parseFloat(String(val));
    return n >= 0 && Math.floor(n) === n && isFinite(val);
}
function isPromise(val) {
    return (isDef(val) &&
        typeof val.then === 'function' &&
        typeof val.catch === 'function');
}
/**
 * Convert a value to a string that is actually rendered.
 */
function toString$2(val) {
    return val == null
        ? ''
        : Array.isArray(val) || (isPlainObject(val) && val.toString === _toString)
            ? JSON.stringify(val, null, 2)
            : String(val);
}
/**
 * Convert an input value to a number for persistence.
 * If the conversion fails, return original string.
 */
function toNumber(val) {
    const n = parseFloat(val);
    return isNaN(n) ? val : n;
}
/**
 * Make a map and return a function for checking if a key
 * is in that map.
 */
function makeMap(str, expectsLowerCase) {
    const map = Object.create(null);
    const list = str.split(',');
    for (let i = 0; i < list.length; i++) {
        map[list[i]] = true;
    }
    return expectsLowerCase ? val => map[val.toLowerCase()] : val => map[val];
}
/**
 * Check if a tag is a built-in tag.
 */
const isBuiltInTag = makeMap('slot,component', true);
/**
 * Check if an attribute is a reserved attribute.
 */
const isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
/**
 * Check whether an object has the property.
 */
const hasOwnProperty$1 = Object.prototype.hasOwnProperty;
function hasOwn(obj, key) {
    return hasOwnProperty$1.call(obj, key);
}
/**
 * Create a cached version of a pure function.
 */
function cached(fn) {
    const cache = Object.create(null);
    return function cachedFn(str) {
        const hit = cache[str];
        return hit || (cache[str] = fn(str));
    };
}
/**
 * Camelize a hyphen-delimited string.
 */
const camelizeRE = /-(\w)/g;
const camelize = cached((str) => {
    return str.replace(camelizeRE, (_, c) => (c ? c.toUpperCase() : ''));
});
/**
 * Capitalize a string.
 */
const capitalize = cached((str) => {
    return str.charAt(0).toUpperCase() + str.slice(1);
});
/**
 * Hyphenate a camelCase string.
 */
const hyphenateRE = /\B([A-Z])/g;
const hyphenate = cached((str) => {
    return str.replace(hyphenateRE, '-$1').toLowerCase();
});
/**
 * Mix properties into target object.
 */
function extend(to, _from) {
    for (const key in _from) {
        to[key] = _from[key];
    }
    return to;
}
/**
 * Merge an Array of Objects into a single Object.
 */
function toObject(arr) {
    const res = {};
    for (let i = 0; i < arr.length; i++) {
        if (arr[i]) {
            extend(res, arr[i]);
        }
    }
    return res;
}
/* eslint-disable no-unused-vars */
/**
 * Perform no operation.
 * Stubbing args to make Flow happy without leaving useless transpiled code
 * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).
 */
function noop(a, b, c) { }
/**
 * Always return false.
 */
const no = (a, b, c) => false;
/* eslint-enable no-unused-vars */
/**
 * Return the same value.
 */
const identity = (_) => _;
/**
 * Generate a string containing static keys from compiler modules.
 */
function genStaticKeys$1(modules) {
    return modules
        .reduce((keys, m) => keys.concat(m.staticKeys || []), [])
        .join(',');
}
/**
 * Check if two values are loosely equal - that is,
 * if they are plain objects, do they have the same shape?
 */
function looseEqual(a, b) {
    if (a === b)
        return true;
    const isObjectA = isObject$1(a);
    const isObjectB = isObject$1(b);
    if (isObjectA && isObjectB) {
        try {
            const isArrayA = Array.isArray(a);
            const isArrayB = Array.isArray(b);
            if (isArrayA && isArrayB) {
                return (a.length === b.length &&
                    a.every((e, i) => {
                        return looseEqual(e, b[i]);
                    }));
            }
            else if (a instanceof Date && b instanceof Date) {
                return a.getTime() === b.getTime();
            }
            else if (!isArrayA && !isArrayB) {
                const keysA = Object.keys(a);
                const keysB = Object.keys(b);
                return (keysA.length === keysB.length &&
                    keysA.every(key => {
                        return looseEqual(a[key], b[key]);
                    }));
            }
            else {
                /* istanbul ignore next */
                return false;
            }
        }
        catch (e) {
            /* istanbul ignore next */
            return false;
        }
    }
    else if (!isObjectA && !isObjectB) {
        return String(a) === String(b);
    }
    else {
        return false;
    }
}
/**
 * Return the first index at which a loosely equal value can be
 * found in the array (if value is a plain object, the array must
 * contain an object of the same shape), or -1 if it is not present.
 */
function looseIndexOf(arr, val) {
    for (let i = 0; i < arr.length; i++) {
        if (looseEqual(arr[i], val))
            return i;
    }
    return -1;
}
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is#polyfill
function hasChanged(x, y) {
    if (x === y) {
        return x === 0 && 1 / x !== 1 / y;
    }
    else {
        return x === x || y === y;
    }
}

const isUnaryTag = makeMap('area,base,br,col,embed,frame,hr,img,input,isindex,keygen,' +
    'link,meta,param,source,track,wbr');
// Elements that you can, intentionally, leave open
// (and which close themselves)
const canBeLeftOpenTag = makeMap('colgroup,dd,dt,li,options,p,td,tfoot,th,thead,tr,source');
// HTML5 tags https://html.spec.whatwg.org/multipage/indices.html#elements-3
// Phrasing Content https://html.spec.whatwg.org/multipage/dom.html#phrasing-content
const isNonPhrasingTag = makeMap('address,article,aside,base,blockquote,body,caption,col,colgroup,dd,' +
    'details,dialog,div,dl,dt,fieldset,figcaption,figure,footer,form,' +
    'h1,h2,h3,h4,h5,h6,head,header,hgroup,hr,html,legend,li,menuitem,meta,' +
    'optgroup,option,param,rp,rt,source,style,summary,tbody,td,tfoot,th,thead,' +
    'title,tr,track');

/**
 * unicode letters used for parsing html tags, component names and property paths.
 * using https://www.w3.org/TR/html53/semantics-scripting.html#potentialcustomelementname
 * skipping \u10000-\uEFFFF due to it freezing up PhantomJS
 */
const unicodeRegExp = /a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD/;
/**
 * Define a property.
 */
function def(obj, key, val, enumerable) {
    Object.defineProperty(obj, key, {
        value: val,
        enumerable: !!enumerable,
        writable: true,
        configurable: true
    });
}

/**
 * Not type-checking this file because it's mostly vendor code.
 */
// Regular Expressions for parsing tags and attributes
const attribute$2 = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
const dynamicArgAttribute = /^\s*((?:v-[\w-]+:|@|:|#)\[[^=]+?\][^\s"'<>\/=]*)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
const ncname = `[a-zA-Z_][\\-\\.0-9_a-zA-Z${unicodeRegExp.source}]*`;
const qnameCapture = `((?:${ncname}\\:)?${ncname})`;
const startTagOpen = new RegExp(`^<${qnameCapture}`);
const startTagClose = /^\s*(\/?)>/;
const endTag = new RegExp(`^<\\/${qnameCapture}[^>]*>`);
const doctype = /^<!DOCTYPE [^>]+>/i;
// #7298: escape - to avoid being passed as HTML comment when inlined in page
const comment$3 = /^<!\--/;
const conditionalComment = /^<!\[/;
// Special Elements (can contain anything)
const isPlainTextElement = makeMap('script,style,textarea', true);
const reCache = {};
const decodingMap = {
    '&lt;': '<',
    '&gt;': '>',
    '&quot;': '"',
    '&amp;': '&',
    '&#10;': '\n',
    '&#9;': '\t',
    '&#39;': "'"
};
const encodedAttr = /&(?:lt|gt|quot|amp|#39);/g;
const encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#39|#10|#9);/g;
// #5992
const isIgnoreNewlineTag = makeMap('pre,textarea', true);
const shouldIgnoreFirstNewline = (tag, html) => tag && isIgnoreNewlineTag(tag) && html[0] === '\n';
function decodeAttr(value, shouldDecodeNewlines) {
    const re = shouldDecodeNewlines ? encodedAttrWithNewLines : encodedAttr;
    return value.replace(re, match => decodingMap[match]);
}
function parseHTML(html, options) {
    const stack = [];
    const expectHTML = options.expectHTML;
    const isUnaryTag = options.isUnaryTag || no;
    const canBeLeftOpenTag = options.canBeLeftOpenTag || no;
    let index = 0;
    let last, lastTag;
    while (html) {
        last = html;
        // Make sure we're not in a plaintext content element like script/style
        if (!lastTag || !isPlainTextElement(lastTag)) {
            let textEnd = html.indexOf('<');
            if (textEnd === 0) {
                // Comment:
                if (comment$3.test(html)) {
                    const commentEnd = html.indexOf('-->');
                    if (commentEnd >= 0) {
                        if (options.shouldKeepComment && options.comment) {
                            options.comment(html.substring(4, commentEnd), index, index + commentEnd + 3);
                        }
                        advance(commentEnd + 3);
                        continue;
                    }
                }
                // https://en.wikipedia.org/wiki/Conditional_comment#Downlevel-revealed_conditional_comment
                if (conditionalComment.test(html)) {
                    const conditionalEnd = html.indexOf(']>');
                    if (conditionalEnd >= 0) {
                        advance(conditionalEnd + 2);
                        continue;
                    }
                }
                // Doctype:
                const doctypeMatch = html.match(doctype);
                if (doctypeMatch) {
                    advance(doctypeMatch[0].length);
                    continue;
                }
                // End tag:
                const endTagMatch = html.match(endTag);
                if (endTagMatch) {
                    const curIndex = index;
                    advance(endTagMatch[0].length);
                    parseEndTag(endTagMatch[1], curIndex, index);
                    continue;
                }
                // Start tag:
                const startTagMatch = parseStartTag();
                if (startTagMatch) {
                    handleStartTag(startTagMatch);
                    if (shouldIgnoreFirstNewline(startTagMatch.tagName, html)) {
                        advance(1);
                    }
                    continue;
                }
            }
            let text, rest, next;
            if (textEnd >= 0) {
                rest = html.slice(textEnd);
                while (!endTag.test(rest) &&
                    !startTagOpen.test(rest) &&
                    !comment$3.test(rest) &&
                    !conditionalComment.test(rest)) {
                    // < in plain text, be forgiving and treat it as text
                    next = rest.indexOf('<', 1);
                    if (next < 0)
                        break;
                    textEnd += next;
                    rest = html.slice(textEnd);
                }
                text = html.substring(0, textEnd);
            }
            if (textEnd < 0) {
                text = html;
            }
            if (text) {
                advance(text.length);
            }
            if (options.chars && text) {
                options.chars(text, index - text.length, index);
            }
        }
        else {
            let endTagLength = 0;
            const stackedTag = lastTag.toLowerCase();
            const reStackedTag = reCache[stackedTag] ||
                (reCache[stackedTag] = new RegExp('([\\s\\S]*?)(</' + stackedTag + '[^>]*>)', 'i'));
            const rest = html.replace(reStackedTag, function (all, text, endTag) {
                endTagLength = endTag.length;
                if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') {
                    text = text
                        .replace(/<!\--([\s\S]*?)-->/g, '$1') // #7298
                        .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1');
                }
                if (shouldIgnoreFirstNewline(stackedTag, text)) {
                    text = text.slice(1);
                }
                if (options.chars) {
                    options.chars(text);
                }
                return '';
            });
            index += html.length - rest.length;
            html = rest;
            parseEndTag(stackedTag, index - endTagLength, index);
        }
        if (html === last) {
            options.chars && options.chars(html);
            if (process.env.NODE_ENV !== 'production' && !stack.length && options.warn) {
                options.warn(`Mal-formatted tag at end of template: "${html}"`, {
                    start: index + html.length
                });
            }
            break;
        }
    }
    // Clean up any remaining tags
    parseEndTag();
    function advance(n) {
        index += n;
        html = html.substring(n);
    }
    function parseStartTag() {
        const start = html.match(startTagOpen);
        if (start) {
            const match = {
                tagName: start[1],
                attrs: [],
                start: index
            };
            advance(start[0].length);
            let end, attr;
            while (!(end = html.match(startTagClose)) &&
                (attr = html.match(dynamicArgAttribute) || html.match(attribute$2))) {
                attr.start = index;
                advance(attr[0].length);
                attr.end = index;
                match.attrs.push(attr);
            }
            if (end) {
                match.unarySlash = end[1];
                advance(end[0].length);
                match.end = index;
                return match;
            }
        }
    }
    function handleStartTag(match) {
        const tagName = match.tagName;
        const unarySlash = match.unarySlash;
        if (expectHTML) {
            if (lastTag === 'p' && isNonPhrasingTag(tagName)) {
                parseEndTag(lastTag);
            }
            if (canBeLeftOpenTag(tagName) && lastTag === tagName) {
                parseEndTag(tagName);
            }
        }
        const unary = isUnaryTag(tagName) || !!unarySlash;
        const l = match.attrs.length;
        const attrs = new Array(l);
        for (let i = 0; i < l; i++) {
            const args = match.attrs[i];
            const value = args[3] || args[4] || args[5] || '';
            const shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
                ? options.shouldDecodeNewlinesForHref
                : options.shouldDecodeNewlines;
            attrs[i] = {
                name: args[1],
                value: decodeAttr(value, shouldDecodeNewlines)
            };
            if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
                attrs[i].start = args.start + args[0].match(/^\s*/).length;
                attrs[i].end = args.end;
            }
        }
        if (!unary) {
            stack.push({
                tag: tagName,
                lowerCasedTag: tagName.toLowerCase(),
                attrs: attrs,
                start: match.start,
                end: match.end
            });
            lastTag = tagName;
        }
        if (options.start) {
            options.start(tagName, attrs, unary, match.start, match.end);
        }
    }
    function parseEndTag(tagName, start, end) {
        let pos, lowerCasedTagName;
        if (start == null)
            start = index;
        if (end == null)
            end = index;
        // Find the closest opened tag of the same type
        if (tagName) {
            lowerCasedTagName = tagName.toLowerCase();
            for (pos = stack.length - 1; pos >= 0; pos--) {
                if (stack[pos].lowerCasedTag === lowerCasedTagName) {
                    break;
                }
            }
        }
        else {
            // If no tag name is provided, clean shop
            pos = 0;
        }
        if (pos >= 0) {
            // Close all the open elements, up the stack
            for (let i = stack.length - 1; i >= pos; i--) {
                if (process.env.NODE_ENV !== 'production' && (i > pos || !tagName) && options.warn) {
                    options.warn(`tag <${stack[i].tag}> has no matching end tag.`, {
                        start: stack[i].start,
                        end: stack[i].end
                    });
                }
                if (options.end) {
                    options.end(stack[i].tag, start, end);
                }
            }
            // Remove the open elements from the stack
            stack.length = pos;
            lastTag = pos && stack[pos - 1].tag;
        }
        else if (lowerCasedTagName === 'br') {
            if (options.start) {
                options.start(tagName, [], true, start, end);
            }
        }
        else if (lowerCasedTagName === 'p') {
            if (options.start) {
                options.start(tagName, [], false, start, end);
            }
            if (options.end) {
                options.end(tagName, start, end);
            }
        }
    }
}

const DEFAULT_FILENAME = 'anonymous.vue';
const splitRE$1 = /\r?\n/g;
const replaceRE = /./g;
const isSpecialTag = makeMap('script,style,template', true);
/**
 * Parse a single-file component (*.vue) file into an SFC Descriptor Object.
 */
function parseComponent(source, options = {}) {
    const sfc = {
        source,
        filename: DEFAULT_FILENAME,
        template: null,
        script: null,
        scriptSetup: null,
        styles: [],
        customBlocks: [],
        cssVars: [],
        errors: [],
        shouldForceReload: null // attached in parse() by compiler-sfc
    };
    let depth = 0;
    let currentBlock = null;
    let warn = msg => {
        sfc.errors.push(msg);
    };
    if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
        warn = (msg, range) => {
            const data = { msg };
            if (range.start != null) {
                data.start = range.start;
            }
            if (range.end != null) {
                data.end = range.end;
            }
            sfc.errors.push(data);
        };
    }
    function start(tag, attrs, unary, start, end) {
        if (depth === 0) {
            currentBlock = {
                type: tag,
                content: '',
                start: end,
                end: 0,
                attrs: attrs.reduce((cumulated, { name, value }) => {
                    cumulated[name] = value || true;
                    return cumulated;
                }, {})
            };
            if (typeof currentBlock.attrs.src === 'string') {
                currentBlock.src = currentBlock.attrs.src;
            }
            if (isSpecialTag(tag)) {
                checkAttrs(currentBlock, attrs);
                if (tag === 'script') {
                    const block = currentBlock;
                    if (block.attrs.setup) {
                        block.setup = currentBlock.attrs.setup;
                        sfc.scriptSetup = block;
                    }
                    else {
                        sfc.script = block;
                    }
                }
                else if (tag === 'style') {
                    sfc.styles.push(currentBlock);
                }
                else {
                    sfc[tag] = currentBlock;
                }
            }
            else {
                // custom blocks
                sfc.customBlocks.push(currentBlock);
            }
        }
        if (!unary) {
            depth++;
        }
    }
    function checkAttrs(block, attrs) {
        for (let i = 0; i < attrs.length; i++) {
            const attr = attrs[i];
            if (attr.name === 'lang') {
                block.lang = attr.value;
            }
            if (attr.name === 'scoped') {
                block.scoped = true;
            }
            if (attr.name === 'module') {
                block.module = attr.value || true;
            }
        }
    }
    function end(tag, start) {
        if (depth === 1 && currentBlock) {
            currentBlock.end = start;
            let text = source.slice(currentBlock.start, currentBlock.end);
            if (options.deindent === true ||
                // by default, deindent unless it's script with default lang or (j/t)sx?
                (options.deindent !== false &&
                    !(currentBlock.type === 'script' &&
                        (!currentBlock.lang || /^(j|t)sx?$/.test(currentBlock.lang))))) {
                text = deIndent(text);
            }
            // pad content so that linters and pre-processors can output correct
            // line numbers in errors and warnings
            if (currentBlock.type !== 'template' && options.pad) {
                text = padContent(currentBlock, options.pad) + text;
            }
            currentBlock.content = text;
            currentBlock = null;
        }
        depth--;
    }
    function padContent(block, pad) {
        if (pad === 'space') {
            return source.slice(0, block.start).replace(replaceRE, ' ');
        }
        else {
            const offset = source.slice(0, block.start).split(splitRE$1).length;
            const padChar = block.type === 'script' && !block.lang ? '//\n' : '\n';
            return Array(offset).join(padChar);
        }
    }
    parseHTML(source, {
        warn,
        start,
        end,
        outputSourceRange: options.outputSourceRange
    });
    return sfc;
}

function pad (hash, len) {
  while (hash.length < len) {
    hash = '0' + hash;
  }
  return hash;
}

function fold (hash, text) {
  var i;
  var chr;
  var len;
  if (text.length === 0) {
    return hash;
  }
  for (i = 0, len = text.length; i < len; i++) {
    chr = text.charCodeAt(i);
    hash = ((hash << 5) - hash) + chr;
    hash |= 0;
  }
  return hash < 0 ? hash * -2 : hash;
}

function foldObject (hash, o, seen) {
  return Object.keys(o).sort().reduce(foldKey, hash);
  function foldKey (hash, key) {
    return foldValue(hash, o[key], key, seen);
  }
}

function foldValue (input, value, key, seen) {
  var hash = fold(fold(fold(input, key), toString$1(value)), typeof value);
  if (value === null) {
    return fold(hash, 'null');
  }
  if (value === undefined) {
    return fold(hash, 'undefined');
  }
  if (typeof value === 'object' || typeof value === 'function') {
    if (seen.indexOf(value) !== -1) {
      return fold(hash, '[Circular]' + key);
    }
    seen.push(value);

    var objHash = foldObject(hash, value, seen);

    if (!('valueOf' in value) || typeof value.valueOf !== 'function') {
      return objHash;
    }

    try {
      return fold(objHash, String(value.valueOf()))
    } catch (err) {
      return fold(objHash, '[valueOf exception]' + (err.stack || err.message))
    }
  }
  return fold(hash, value.toString());
}

function toString$1 (o) {
  return Object.prototype.toString.call(o);
}

function sum (o) {
  return pad(foldValue(0, o, '', []).toString(16), 8);
}

var hashSum = sum;

var iterator;
var hasRequiredIterator;

function requireIterator () {
	if (hasRequiredIterator) return iterator;
	hasRequiredIterator = 1;
	iterator = function (Yallist) {
	  Yallist.prototype[Symbol.iterator] = function* () {
	    for (let walker = this.head; walker; walker = walker.next) {
	      yield walker.value;
	    }
	  };
	};
	return iterator;
}

var yallist = Yallist$1;

Yallist$1.Node = Node;
Yallist$1.create = Yallist$1;

function Yallist$1 (list) {
  var self = this;
  if (!(self instanceof Yallist$1)) {
    self = new Yallist$1();
  }

  self.tail = null;
  self.head = null;
  self.length = 0;

  if (list && typeof list.forEach === 'function') {
    list.forEach(function (item) {
      self.push(item);
    });
  } else if (arguments.length > 0) {
    for (var i = 0, l = arguments.length; i < l; i++) {
      self.push(arguments[i]);
    }
  }

  return self
}

Yallist$1.prototype.removeNode = function (node) {
  if (node.list !== this) {
    throw new Error('removing node which does not belong to this list')
  }

  var next = node.next;
  var prev = node.prev;

  if (next) {
    next.prev = prev;
  }

  if (prev) {
    prev.next = next;
  }

  if (node === this.head) {
    this.head = next;
  }
  if (node === this.tail) {
    this.tail = prev;
  }

  node.list.length--;
  node.next = null;
  node.prev = null;
  node.list = null;

  return next
};

Yallist$1.prototype.unshiftNode = function (node) {
  if (node === this.head) {
    return
  }

  if (node.list) {
    node.list.removeNode(node);
  }

  var head = this.head;
  node.list = this;
  node.next = head;
  if (head) {
    head.prev = node;
  }

  this.head = node;
  if (!this.tail) {
    this.tail = node;
  }
  this.length++;
};

Yallist$1.prototype.pushNode = function (node) {
  if (node === this.tail) {
    return
  }

  if (node.list) {
    node.list.removeNode(node);
  }

  var tail = this.tail;
  node.list = this;
  node.prev = tail;
  if (tail) {
    tail.next = node;
  }

  this.tail = node;
  if (!this.head) {
    this.head = node;
  }
  this.length++;
};

Yallist$1.prototype.push = function () {
  for (var i = 0, l = arguments.length; i < l; i++) {
    push(this, arguments[i]);
  }
  return this.length
};

Yallist$1.prototype.unshift = function () {
  for (var i = 0, l = arguments.length; i < l; i++) {
    unshift(this, arguments[i]);
  }
  return this.length
};

Yallist$1.prototype.pop = function () {
  if (!this.tail) {
    return undefined
  }

  var res = this.tail.value;
  this.tail = this.tail.prev;
  if (this.tail) {
    this.tail.next = null;
  } else {
    this.head = null;
  }
  this.length--;
  return res
};

Yallist$1.prototype.shift = function () {
  if (!this.head) {
    return undefined
  }

  var res = this.head.value;
  this.head = this.head.next;
  if (this.head) {
    this.head.prev = null;
  } else {
    this.tail = null;
  }
  this.length--;
  return res
};

Yallist$1.prototype.forEach = function (fn, thisp) {
  thisp = thisp || this;
  for (var walker = this.head, i = 0; walker !== null; i++) {
    fn.call(thisp, walker.value, i, this);
    walker = walker.next;
  }
};

Yallist$1.prototype.forEachReverse = function (fn, thisp) {
  thisp = thisp || this;
  for (var walker = this.tail, i = this.length - 1; walker !== null; i--) {
    fn.call(thisp, walker.value, i, this);
    walker = walker.prev;
  }
};

Yallist$1.prototype.get = function (n) {
  for (var i = 0, walker = this.head; walker !== null && i < n; i++) {
    // abort out of the list early if we hit a cycle
    walker = walker.next;
  }
  if (i === n && walker !== null) {
    return walker.value
  }
};

Yallist$1.prototype.getReverse = function (n) {
  for (var i = 0, walker = this.tail; walker !== null && i < n; i++) {
    // abort out of the list early if we hit a cycle
    walker = walker.prev;
  }
  if (i === n && walker !== null) {
    return walker.value
  }
};

Yallist$1.prototype.map = function (fn, thisp) {
  thisp = thisp || this;
  var res = new Yallist$1();
  for (var walker = this.head; walker !== null;) {
    res.push(fn.call(thisp, walker.value, this));
    walker = walker.next;
  }
  return res
};

Yallist$1.prototype.mapReverse = function (fn, thisp) {
  thisp = thisp || this;
  var res = new Yallist$1();
  for (var walker = this.tail; walker !== null;) {
    res.push(fn.call(thisp, walker.value, this));
    walker = walker.prev;
  }
  return res
};

Yallist$1.prototype.reduce = function (fn, initial) {
  var acc;
  var walker = this.head;
  if (arguments.length > 1) {
    acc = initial;
  } else if (this.head) {
    walker = this.head.next;
    acc = this.head.value;
  } else {
    throw new TypeError('Reduce of empty list with no initial value')
  }

  for (var i = 0; walker !== null; i++) {
    acc = fn(acc, walker.value, i);
    walker = walker.next;
  }

  return acc
};

Yallist$1.prototype.reduceReverse = function (fn, initial) {
  var acc;
  var walker = this.tail;
  if (arguments.length > 1) {
    acc = initial;
  } else if (this.tail) {
    walker = this.tail.prev;
    acc = this.tail.value;
  } else {
    throw new TypeError('Reduce of empty list with no initial value')
  }

  for (var i = this.length - 1; walker !== null; i--) {
    acc = fn(acc, walker.value, i);
    walker = walker.prev;
  }

  return acc
};

Yallist$1.prototype.toArray = function () {
  var arr = new Array(this.length);
  for (var i = 0, walker = this.head; walker !== null; i++) {
    arr[i] = walker.value;
    walker = walker.next;
  }
  return arr
};

Yallist$1.prototype.toArrayReverse = function () {
  var arr = new Array(this.length);
  for (var i = 0, walker = this.tail; walker !== null; i++) {
    arr[i] = walker.value;
    walker = walker.prev;
  }
  return arr
};

Yallist$1.prototype.slice = function (from, to) {
  to = to || this.length;
  if (to < 0) {
    to += this.length;
  }
  from = from || 0;
  if (from < 0) {
    from += this.length;
  }
  var ret = new Yallist$1();
  if (to < from || to < 0) {
    return ret
  }
  if (from < 0) {
    from = 0;
  }
  if (to > this.length) {
    to = this.length;
  }
  for (var i = 0, walker = this.head; walker !== null && i < from; i++) {
    walker = walker.next;
  }
  for (; walker !== null && i < to; i++, walker = walker.next) {
    ret.push(walker.value);
  }
  return ret
};

Yallist$1.prototype.sliceReverse = function (from, to) {
  to = to || this.length;
  if (to < 0) {
    to += this.length;
  }
  from = from || 0;
  if (from < 0) {
    from += this.length;
  }
  var ret = new Yallist$1();
  if (to < from || to < 0) {
    return ret
  }
  if (from < 0) {
    from = 0;
  }
  if (to > this.length) {
    to = this.length;
  }
  for (var i = this.length, walker = this.tail; walker !== null && i > to; i--) {
    walker = walker.prev;
  }
  for (; walker !== null && i > from; i--, walker = walker.prev) {
    ret.push(walker.value);
  }
  return ret
};

Yallist$1.prototype.splice = function (start, deleteCount /*, ...nodes */) {
  if (start > this.length) {
    start = this.length - 1;
  }
  if (start < 0) {
    start = this.length + start;
  }

  for (var i = 0, walker = this.head; walker !== null && i < start; i++) {
    walker = walker.next;
  }

  var ret = [];
  for (var i = 0; walker && i < deleteCount; i++) {
    ret.push(walker.value);
    walker = this.removeNode(walker);
  }
  if (walker === null) {
    walker = this.tail;
  }

  if (walker !== this.head && walker !== this.tail) {
    walker = walker.prev;
  }

  for (var i = 2; i < arguments.length; i++) {
    walker = insert(this, walker, arguments[i]);
  }
  return ret;
};

Yallist$1.prototype.reverse = function () {
  var head = this.head;
  var tail = this.tail;
  for (var walker = head; walker !== null; walker = walker.prev) {
    var p = walker.prev;
    walker.prev = walker.next;
    walker.next = p;
  }
  this.head = tail;
  this.tail = head;
  return this
};

function insert (self, node, value) {
  var inserted = node === self.head ?
    new Node(value, null, node, self) :
    new Node(value, node, node.next, self);

  if (inserted.next === null) {
    self.tail = inserted;
  }
  if (inserted.prev === null) {
    self.head = inserted;
  }

  self.length++;

  return inserted
}

function push (self, item) {
  self.tail = new Node(item, self.tail, null, self);
  if (!self.head) {
    self.head = self.tail;
  }
  self.length++;
}

function unshift (self, item) {
  self.head = new Node(item, null, self.head, self);
  if (!self.tail) {
    self.tail = self.head;
  }
  self.length++;
}

function Node (value, prev, next, list) {
  if (!(this instanceof Node)) {
    return new Node(value, prev, next, list)
  }

  this.list = list;
  this.value = value;

  if (prev) {
    prev.next = this;
    this.prev = prev;
  } else {
    this.prev = null;
  }

  if (next) {
    next.prev = this;
    this.next = next;
  } else {
    this.next = null;
  }
}

try {
  // add if support for Symbol.iterator is present
  requireIterator()(Yallist$1);
} catch (er) {}

// A linked list to keep track of recently-used-ness
const Yallist = yallist;

const MAX = Symbol('max');
const LENGTH = Symbol('length');
const LENGTH_CALCULATOR = Symbol('lengthCalculator');
const ALLOW_STALE = Symbol('allowStale');
const MAX_AGE = Symbol('maxAge');
const DISPOSE = Symbol('dispose');
const NO_DISPOSE_ON_SET = Symbol('noDisposeOnSet');
const LRU_LIST = Symbol('lruList');
const CACHE = Symbol('cache');
const UPDATE_AGE_ON_GET = Symbol('updateAgeOnGet');

const naiveLength = () => 1;

// lruList is a yallist where the head is the youngest
// item, and the tail is the oldest.  the list contains the Hit
// objects as the entries.
// Each Hit object has a reference to its Yallist.Node.  This
// never changes.
//
// cache is a Map (or PseudoMap) that matches the keys to
// the Yallist.Node object.
class LRUCache {
  constructor (options) {
    if (typeof options === 'number')
      options = { max: options };

    if (!options)
      options = {};

    if (options.max && (typeof options.max !== 'number' || options.max < 0))
      throw new TypeError('max must be a non-negative number')
    // Kind of weird to have a default max of Infinity, but oh well.
    this[MAX] = options.max || Infinity;

    const lc = options.length || naiveLength;
    this[LENGTH_CALCULATOR] = (typeof lc !== 'function') ? naiveLength : lc;
    this[ALLOW_STALE] = options.stale || false;
    if (options.maxAge && typeof options.maxAge !== 'number')
      throw new TypeError('maxAge must be a number')
    this[MAX_AGE] = options.maxAge || 0;
    this[DISPOSE] = options.dispose;
    this[NO_DISPOSE_ON_SET] = options.noDisposeOnSet || false;
    this[UPDATE_AGE_ON_GET] = options.updateAgeOnGet || false;
    this.reset();
  }

  // resize the cache when the max changes.
  set max (mL) {
    if (typeof mL !== 'number' || mL < 0)
      throw new TypeError('max must be a non-negative number')

    this[MAX] = mL || Infinity;
    trim(this);
  }
  get max () {
    return this[MAX]
  }

  set allowStale (allowStale) {
    this[ALLOW_STALE] = !!allowStale;
  }
  get allowStale () {
    return this[ALLOW_STALE]
  }

  set maxAge (mA) {
    if (typeof mA !== 'number')
      throw new TypeError('maxAge must be a non-negative number')

    this[MAX_AGE] = mA;
    trim(this);
  }
  get maxAge () {
    return this[MAX_AGE]
  }

  // resize the cache when the lengthCalculator changes.
  set lengthCalculator (lC) {
    if (typeof lC !== 'function')
      lC = naiveLength;

    if (lC !== this[LENGTH_CALCULATOR]) {
      this[LENGTH_CALCULATOR] = lC;
      this[LENGTH] = 0;
      this[LRU_LIST].forEach(hit => {
        hit.length = this[LENGTH_CALCULATOR](hit.value, hit.key);
        this[LENGTH] += hit.length;
      });
    }
    trim(this);
  }
  get lengthCalculator () { return this[LENGTH_CALCULATOR] }

  get length () { return this[LENGTH] }
  get itemCount () { return this[LRU_LIST].length }

  rforEach (fn, thisp) {
    thisp = thisp || this;
    for (let walker = this[LRU_LIST].tail; walker !== null;) {
      const prev = walker.prev;
      forEachStep(this, fn, walker, thisp);
      walker = prev;
    }
  }

  forEach (fn, thisp) {
    thisp = thisp || this;
    for (let walker = this[LRU_LIST].head; walker !== null;) {
      const next = walker.next;
      forEachStep(this, fn, walker, thisp);
      walker = next;
    }
  }

  keys () {
    return this[LRU_LIST].toArray().map(k => k.key)
  }

  values () {
    return this[LRU_LIST].toArray().map(k => k.value)
  }

  reset () {
    if (this[DISPOSE] &&
        this[LRU_LIST] &&
        this[LRU_LIST].length) {
      this[LRU_LIST].forEach(hit => this[DISPOSE](hit.key, hit.value));
    }

    this[CACHE] = new Map(); // hash of items by key
    this[LRU_LIST] = new Yallist(); // list of items in order of use recency
    this[LENGTH] = 0; // length of items in the list
  }

  dump () {
    return this[LRU_LIST].map(hit =>
      isStale(this, hit) ? false : {
        k: hit.key,
        v: hit.value,
        e: hit.now + (hit.maxAge || 0)
      }).toArray().filter(h => h)
  }

  dumpLru () {
    return this[LRU_LIST]
  }

  set (key, value, maxAge) {
    maxAge = maxAge || this[MAX_AGE];

    if (maxAge && typeof maxAge !== 'number')
      throw new TypeError('maxAge must be a number')

    const now = maxAge ? Date.now() : 0;
    const len = this[LENGTH_CALCULATOR](value, key);

    if (this[CACHE].has(key)) {
      if (len > this[MAX]) {
        del(this, this[CACHE].get(key));
        return false
      }

      const node = this[CACHE].get(key);
      const item = node.value;

      // dispose of the old one before overwriting
      // split out into 2 ifs for better coverage tracking
      if (this[DISPOSE]) {
        if (!this[NO_DISPOSE_ON_SET])
          this[DISPOSE](key, item.value);
      }

      item.now = now;
      item.maxAge = maxAge;
      item.value = value;
      this[LENGTH] += len - item.length;
      item.length = len;
      this.get(key);
      trim(this);
      return true
    }

    const hit = new Entry(key, value, len, now, maxAge);

    // oversized objects fall out of cache automatically.
    if (hit.length > this[MAX]) {
      if (this[DISPOSE])
        this[DISPOSE](key, value);

      return false
    }

    this[LENGTH] += hit.length;
    this[LRU_LIST].unshift(hit);
    this[CACHE].set(key, this[LRU_LIST].head);
    trim(this);
    return true
  }

  has (key) {
    if (!this[CACHE].has(key)) return false
    const hit = this[CACHE].get(key).value;
    return !isStale(this, hit)
  }

  get (key) {
    return get(this, key, true)
  }

  peek (key) {
    return get(this, key, false)
  }

  pop () {
    const node = this[LRU_LIST].tail;
    if (!node)
      return null

    del(this, node);
    return node.value
  }

  del (key) {
    del(this, this[CACHE].get(key));
  }

  load (arr) {
    // reset the cache
    this.reset();

    const now = Date.now();
    // A previous serialized cache has the most recent items first
    for (let l = arr.length - 1; l >= 0; l--) {
      const hit = arr[l];
      const expiresAt = hit.e || 0;
      if (expiresAt === 0)
        // the item was created without expiration in a non aged cache
        this.set(hit.k, hit.v);
      else {
        const maxAge = expiresAt - now;
        // dont add already expired items
        if (maxAge > 0) {
          this.set(hit.k, hit.v, maxAge);
        }
      }
    }
  }

  prune () {
    this[CACHE].forEach((value, key) => get(this, key, false));
  }
}

const get = (self, key, doUse) => {
  const node = self[CACHE].get(key);
  if (node) {
    const hit = node.value;
    if (isStale(self, hit)) {
      del(self, node);
      if (!self[ALLOW_STALE])
        return undefined
    } else {
      if (doUse) {
        if (self[UPDATE_AGE_ON_GET])
          node.value.now = Date.now();
        self[LRU_LIST].unshiftNode(node);
      }
    }
    return hit.value
  }
};

const isStale = (self, hit) => {
  if (!hit || (!hit.maxAge && !self[MAX_AGE]))
    return false

  const diff = Date.now() - hit.now;
  return hit.maxAge ? diff > hit.maxAge
    : self[MAX_AGE] && (diff > self[MAX_AGE])
};

const trim = self => {
  if (self[LENGTH] > self[MAX]) {
    for (let walker = self[LRU_LIST].tail;
      self[LENGTH] > self[MAX] && walker !== null;) {
      // We know that we're about to delete this one, and also
      // what the next least recently used key will be, so just
      // go ahead and set it now.
      const prev = walker.prev;
      del(self, walker);
      walker = prev;
    }
  }
};

const del = (self, node) => {
  if (node) {
    const hit = node.value;
    if (self[DISPOSE])
      self[DISPOSE](hit.key, hit.value);

    self[LENGTH] -= hit.length;
    self[CACHE].delete(hit.key);
    self[LRU_LIST].removeNode(node);
  }
};

class Entry {
  constructor (key, value, length, now, maxAge) {
    this.key = key;
    this.value = value;
    this.length = length;
    this.now = now;
    this.maxAge = maxAge || 0;
  }
}

const forEachStep = (self, fn, node, thisp) => {
  let hit = node.value;
  if (isStale(self, hit)) {
    del(self, node);
    if (!self[ALLOW_STALE])
      hit = undefined;
  }
  if (hit)
    fn.call(thisp, hit.value, hit.key, self);
};

var lruCache = LRUCache;

var chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
function encode(decoded) {
    var sourceFileIndex = 0; // second field
    var sourceCodeLine = 0; // third field
    var sourceCodeColumn = 0; // fourth field
    var nameIndex = 0; // fifth field
    var mappings = '';
    for (var i = 0; i < decoded.length; i++) {
        var line = decoded[i];
        if (i > 0)
            mappings += ';';
        if (line.length === 0)
            continue;
        var generatedCodeColumn = 0; // first field
        var lineMappings = [];
        for (var _i = 0, line_1 = line; _i < line_1.length; _i++) {
            var segment = line_1[_i];
            var segmentMappings = encodeInteger(segment[0] - generatedCodeColumn);
            generatedCodeColumn = segment[0];
            if (segment.length > 1) {
                segmentMappings +=
                    encodeInteger(segment[1] - sourceFileIndex) +
                        encodeInteger(segment[2] - sourceCodeLine) +
                        encodeInteger(segment[3] - sourceCodeColumn);
                sourceFileIndex = segment[1];
                sourceCodeLine = segment[2];
                sourceCodeColumn = segment[3];
            }
            if (segment.length === 5) {
                segmentMappings += encodeInteger(segment[4] - nameIndex);
                nameIndex = segment[4];
            }
            lineMappings.push(segmentMappings);
        }
        mappings += lineMappings.join(',');
    }
    return mappings;
}
function encodeInteger(num) {
    var result = '';
    num = num < 0 ? (-num << 1) | 1 : num << 1;
    do {
        var clamped = num & 31;
        num >>>= 5;
        if (num > 0) {
            clamped |= 32;
        }
        result += chars[clamped];
    } while (num > 0);
    return result;
}

var BitSet = function BitSet(arg) {
	this.bits = arg instanceof BitSet ? arg.bits.slice() : [];
};

BitSet.prototype.add = function add (n) {
	this.bits[n >> 5] |= 1 << (n & 31);
};

BitSet.prototype.has = function has (n) {
	return !!(this.bits[n >> 5] & (1 << (n & 31)));
};

var Chunk = function Chunk(start, end, content) {
	this.start = start;
	this.end = end;
	this.original = content;

	this.intro = '';
	this.outro = '';

	this.content = content;
	this.storeName = false;
	this.edited = false;

	// we make these non-enumerable, for sanity while debugging
	Object.defineProperties(this, {
		previous: { writable: true, value: null },
		next: { writable: true, value: null },
	});
};

Chunk.prototype.appendLeft = function appendLeft (content) {
	this.outro += content;
};

Chunk.prototype.appendRight = function appendRight (content) {
	this.intro = this.intro + content;
};

Chunk.prototype.clone = function clone () {
	var chunk = new Chunk(this.start, this.end, this.original);

	chunk.intro = this.intro;
	chunk.outro = this.outro;
	chunk.content = this.content;
	chunk.storeName = this.storeName;
	chunk.edited = this.edited;

	return chunk;
};

Chunk.prototype.contains = function contains (index) {
	return this.start < index && index < this.end;
};

Chunk.prototype.eachNext = function eachNext (fn) {
	var chunk = this;
	while (chunk) {
		fn(chunk);
		chunk = chunk.next;
	}
};

Chunk.prototype.eachPrevious = function eachPrevious (fn) {
	var chunk = this;
	while (chunk) {
		fn(chunk);
		chunk = chunk.previous;
	}
};

Chunk.prototype.edit = function edit (content, storeName, contentOnly) {
	this.content = content;
	if (!contentOnly) {
		this.intro = '';
		this.outro = '';
	}
	this.storeName = storeName;

	this.edited = true;

	return this;
};

Chunk.prototype.prependLeft = function prependLeft (content) {
	this.outro = content + this.outro;
};

Chunk.prototype.prependRight = function prependRight (content) {
	this.intro = content + this.intro;
};

Chunk.prototype.split = function split (index) {
	var sliceIndex = index - this.start;

	var originalBefore = this.original.slice(0, sliceIndex);
	var originalAfter = this.original.slice(sliceIndex);

	this.original = originalBefore;

	var newChunk = new Chunk(index, this.end, originalAfter);
	newChunk.outro = this.outro;
	this.outro = '';

	this.end = index;

	if (this.edited) {
		// TODO is this block necessary?...
		newChunk.edit('', false);
		this.content = '';
	} else {
		this.content = originalBefore;
	}

	newChunk.next = this.next;
	if (newChunk.next) { newChunk.next.previous = newChunk; }
	newChunk.previous = this;
	this.next = newChunk;

	return newChunk;
};

Chunk.prototype.toString = function toString () {
	return this.intro + this.content + this.outro;
};

Chunk.prototype.trimEnd = function trimEnd (rx) {
	this.outro = this.outro.replace(rx, '');
	if (this.outro.length) { return true; }

	var trimmed = this.content.replace(rx, '');

	if (trimmed.length) {
		if (trimmed !== this.content) {
			this.split(this.start + trimmed.length).edit('', undefined, true);
		}
		return true;
	} else {
		this.edit('', undefined, true);

		this.intro = this.intro.replace(rx, '');
		if (this.intro.length) { return true; }
	}
};

Chunk.prototype.trimStart = function trimStart (rx) {
	this.intro = this.intro.replace(rx, '');
	if (this.intro.length) { return true; }

	var trimmed = this.content.replace(rx, '');

	if (trimmed.length) {
		if (trimmed !== this.content) {
			this.split(this.end - trimmed.length);
			this.edit('', undefined, true);
		}
		return true;
	} else {
		this.edit('', undefined, true);

		this.outro = this.outro.replace(rx, '');
		if (this.outro.length) { return true; }
	}
};

var btoa = function () {
	throw new Error('Unsupported environment: `window.btoa` or `Buffer` should be supported.');
};
if (typeof window !== 'undefined' && typeof window.btoa === 'function') {
	btoa = function (str) { return window.btoa(unescape(encodeURIComponent(str))); };
} else if (typeof Buffer === 'function') {
	btoa = function (str) { return Buffer.from(str, 'utf-8').toString('base64'); };
}

var SourceMap = function SourceMap(properties) {
	this.version = 3;
	this.file = properties.file;
	this.sources = properties.sources;
	this.sourcesContent = properties.sourcesContent;
	this.names = properties.names;
	this.mappings = encode(properties.mappings);
};

SourceMap.prototype.toString = function toString () {
	return JSON.stringify(this);
};

SourceMap.prototype.toUrl = function toUrl () {
	return 'data:application/json;charset=utf-8;base64,' + btoa(this.toString());
};

function guessIndent(code) {
	var lines = code.split('\n');

	var tabbed = lines.filter(function (line) { return /^\t+/.test(line); });
	var spaced = lines.filter(function (line) { return /^ {2,}/.test(line); });

	if (tabbed.length === 0 && spaced.length === 0) {
		return null;
	}

	// More lines tabbed than spaced? Assume tabs, and
	// default to tabs in the case of a tie (or nothing
	// to go on)
	if (tabbed.length >= spaced.length) {
		return '\t';
	}

	// Otherwise, we need to guess the multiple
	var min = spaced.reduce(function (previous, current) {
		var numSpaces = /^ +/.exec(current)[0].length;
		return Math.min(numSpaces, previous);
	}, Infinity);

	return new Array(min + 1).join(' ');
}

function getRelativePath(from, to) {
	var fromParts = from.split(/[/\\]/);
	var toParts = to.split(/[/\\]/);

	fromParts.pop(); // get dirname

	while (fromParts[0] === toParts[0]) {
		fromParts.shift();
		toParts.shift();
	}

	if (fromParts.length) {
		var i = fromParts.length;
		while (i--) { fromParts[i] = '..'; }
	}

	return fromParts.concat(toParts).join('/');
}

var toString = Object.prototype.toString;

function isObject(thing) {
	return toString.call(thing) === '[object Object]';
}

function getLocator(source) {
	var originalLines = source.split('\n');
	var lineOffsets = [];

	for (var i = 0, pos = 0; i < originalLines.length; i++) {
		lineOffsets.push(pos);
		pos += originalLines[i].length + 1;
	}

	return function locate(index) {
		var i = 0;
		var j = lineOffsets.length;
		while (i < j) {
			var m = (i + j) >> 1;
			if (index < lineOffsets[m]) {
				j = m;
			} else {
				i = m + 1;
			}
		}
		var line = i - 1;
		var column = index - lineOffsets[line];
		return { line: line, column: column };
	};
}

var Mappings = function Mappings(hires) {
	this.hires = hires;
	this.generatedCodeLine = 0;
	this.generatedCodeColumn = 0;
	this.raw = [];
	this.rawSegments = this.raw[this.generatedCodeLine] = [];
	this.pending = null;
};

Mappings.prototype.addEdit = function addEdit (sourceIndex, content, loc, nameIndex) {
	if (content.length) {
		var segment = [this.generatedCodeColumn, sourceIndex, loc.line, loc.column];
		if (nameIndex >= 0) {
			segment.push(nameIndex);
		}
		this.rawSegments.push(segment);
	} else if (this.pending) {
		this.rawSegments.push(this.pending);
	}

	this.advance(content);
	this.pending = null;
};

Mappings.prototype.addUneditedChunk = function addUneditedChunk (sourceIndex, chunk, original, loc, sourcemapLocations) {
	var originalCharIndex = chunk.start;
	var first = true;

	while (originalCharIndex < chunk.end) {
		if (this.hires || first || sourcemapLocations.has(originalCharIndex)) {
			this.rawSegments.push([this.generatedCodeColumn, sourceIndex, loc.line, loc.column]);
		}

		if (original[originalCharIndex] === '\n') {
			loc.line += 1;
			loc.column = 0;
			this.generatedCodeLine += 1;
			this.raw[this.generatedCodeLine] = this.rawSegments = [];
			this.generatedCodeColumn = 0;
			first = true;
		} else {
			loc.column += 1;
			this.generatedCodeColumn += 1;
			first = false;
		}

		originalCharIndex += 1;
	}

	this.pending = null;
};

Mappings.prototype.advance = function advance (str) {
	if (!str) { return; }

	var lines = str.split('\n');

	if (lines.length > 1) {
		for (var i = 0; i < lines.length - 1; i++) {
			this.generatedCodeLine++;
			this.raw[this.generatedCodeLine] = this.rawSegments = [];
		}
		this.generatedCodeColumn = 0;
	}

	this.generatedCodeColumn += lines[lines.length - 1].length;
};

var n = '\n';

var warned = {
	insertLeft: false,
	insertRight: false,
	storeName: false,
};

var MagicString = function MagicString(string, options) {
	if ( options === void 0 ) options = {};

	var chunk = new Chunk(0, string.length, string);

	Object.defineProperties(this, {
		original: { writable: true, value: string },
		outro: { writable: true, value: '' },
		intro: { writable: true, value: '' },
		firstChunk: { writable: true, value: chunk },
		lastChunk: { writable: true, value: chunk },
		lastSearchedChunk: { writable: true, value: chunk },
		byStart: { writable: true, value: {} },
		byEnd: { writable: true, value: {} },
		filename: { writable: true, value: options.filename },
		indentExclusionRanges: { writable: true, value: options.indentExclusionRanges },
		sourcemapLocations: { writable: true, value: new BitSet() },
		storedNames: { writable: true, value: {} },
		indentStr: { writable: true, value: guessIndent(string) },
	});

	this.byStart[0] = chunk;
	this.byEnd[string.length] = chunk;
};

MagicString.prototype.addSourcemapLocation = function addSourcemapLocation (char) {
	this.sourcemapLocations.add(char);
};

MagicString.prototype.append = function append (content) {
	if (typeof content !== 'string') { throw new TypeError('outro content must be a string'); }

	this.outro += content;
	return this;
};

MagicString.prototype.appendLeft = function appendLeft (index, content) {
	if (typeof content !== 'string') { throw new TypeError('inserted content must be a string'); }

	this._split(index);

	var chunk = this.byEnd[index];

	if (chunk) {
		chunk.appendLeft(content);
	} else {
		this.intro += content;
	}
	return this;
};

MagicString.prototype.appendRight = function appendRight (index, content) {
	if (typeof content !== 'string') { throw new TypeError('inserted content must be a string'); }

	this._split(index);

	var chunk = this.byStart[index];

	if (chunk) {
		chunk.appendRight(content);
	} else {
		this.outro += content;
	}
	return this;
};

MagicString.prototype.clone = function clone () {
	var cloned = new MagicString(this.original, { filename: this.filename });

	var originalChunk = this.firstChunk;
	var clonedChunk = (cloned.firstChunk = cloned.lastSearchedChunk = originalChunk.clone());

	while (originalChunk) {
		cloned.byStart[clonedChunk.start] = clonedChunk;
		cloned.byEnd[clonedChunk.end] = clonedChunk;

		var nextOriginalChunk = originalChunk.next;
		var nextClonedChunk = nextOriginalChunk && nextOriginalChunk.clone();

		if (nextClonedChunk) {
			clonedChunk.next = nextClonedChunk;
			nextClonedChunk.previous = clonedChunk;

			clonedChunk = nextClonedChunk;
		}

		originalChunk = nextOriginalChunk;
	}

	cloned.lastChunk = clonedChunk;

	if (this.indentExclusionRanges) {
		cloned.indentExclusionRanges = this.indentExclusionRanges.slice();
	}

	cloned.sourcemapLocations = new BitSet(this.sourcemapLocations);

	cloned.intro = this.intro;
	cloned.outro = this.outro;

	return cloned;
};

MagicString.prototype.generateDecodedMap = function generateDecodedMap (options) {
		var this$1$1 = this;

	options = options || {};

	var sourceIndex = 0;
	var names = Object.keys(this.storedNames);
	var mappings = new Mappings(options.hires);

	var locate = getLocator(this.original);

	if (this.intro) {
		mappings.advance(this.intro);
	}

	this.firstChunk.eachNext(function (chunk) {
		var loc = locate(chunk.start);

		if (chunk.intro.length) { mappings.advance(chunk.intro); }

		if (chunk.edited) {
			mappings.addEdit(
				sourceIndex,
				chunk.content,
				loc,
				chunk.storeName ? names.indexOf(chunk.original) : -1
			);
		} else {
			mappings.addUneditedChunk(sourceIndex, chunk, this$1$1.original, loc, this$1$1.sourcemapLocations);
		}

		if (chunk.outro.length) { mappings.advance(chunk.outro); }
	});

	return {
		file: options.file ? options.file.split(/[/\\]/).pop() : null,
		sources: [options.source ? getRelativePath(options.file || '', options.source) : null],
		sourcesContent: options.includeContent ? [this.original] : [null],
		names: names,
		mappings: mappings.raw,
	};
};

MagicString.prototype.generateMap = function generateMap (options) {
	return new SourceMap(this.generateDecodedMap(options));
};

MagicString.prototype.getIndentString = function getIndentString () {
	return this.indentStr === null ? '\t' : this.indentStr;
};

MagicString.prototype.indent = function indent (indentStr, options) {
	var pattern = /^[^\r\n]/gm;

	if (isObject(indentStr)) {
		options = indentStr;
		indentStr = undefined;
	}

	indentStr = indentStr !== undefined ? indentStr : this.indentStr || '\t';

	if (indentStr === '') { return this; } // noop

	options = options || {};

	// Process exclusion ranges
	var isExcluded = {};

	if (options.exclude) {
		var exclusions =
			typeof options.exclude[0] === 'number' ? [options.exclude] : options.exclude;
		exclusions.forEach(function (exclusion) {
			for (var i = exclusion[0]; i < exclusion[1]; i += 1) {
				isExcluded[i] = true;
			}
		});
	}

	var shouldIndentNextCharacter = options.indentStart !== false;
	var replacer = function (match) {
		if (shouldIndentNextCharacter) { return ("" + indentStr + match); }
		shouldIndentNextCharacter = true;
		return match;
	};

	this.intro = this.intro.replace(pattern, replacer);

	var charIndex = 0;
	var chunk = this.firstChunk;

	while (chunk) {
		var end = chunk.end;

		if (chunk.edited) {
			if (!isExcluded[charIndex]) {
				chunk.content = chunk.content.replace(pattern, replacer);

				if (chunk.content.length) {
					shouldIndentNextCharacter = chunk.content[chunk.content.length - 1] === '\n';
				}
			}
		} else {
			charIndex = chunk.start;

			while (charIndex < end) {
				if (!isExcluded[charIndex]) {
					var char = this.original[charIndex];

					if (char === '\n') {
						shouldIndentNextCharacter = true;
					} else if (char !== '\r' && shouldIndentNextCharacter) {
						shouldIndentNextCharacter = false;

						if (charIndex === chunk.start) {
							chunk.prependRight(indentStr);
						} else {
							this._splitChunk(chunk, charIndex);
							chunk = chunk.next;
							chunk.prependRight(indentStr);
						}
					}
				}

				charIndex += 1;
			}
		}

		charIndex = chunk.end;
		chunk = chunk.next;
	}

	this.outro = this.outro.replace(pattern, replacer);

	return this;
};

MagicString.prototype.insert = function insert () {
	throw new Error(
		'magicString.insert(...) is deprecated. Use prependRight(...) or appendLeft(...)'
	);
};

MagicString.prototype.insertLeft = function insertLeft (index, content) {
	if (!warned.insertLeft) {
		console.warn(
			'magicString.insertLeft(...) is deprecated. Use magicString.appendLeft(...) instead'
		); // eslint-disable-line no-console
		warned.insertLeft = true;
	}

	return this.appendLeft(index, content);
};

MagicString.prototype.insertRight = function insertRight (index, content) {
	if (!warned.insertRight) {
		console.warn(
			'magicString.insertRight(...) is deprecated. Use magicString.prependRight(...) instead'
		); // eslint-disable-line no-console
		warned.insertRight = true;
	}

	return this.prependRight(index, content);
};

MagicString.prototype.move = function move (start, end, index) {
	if (index >= start && index <= end) { throw new Error('Cannot move a selection inside itself'); }

	this._split(start);
	this._split(end);
	this._split(index);

	var first = this.byStart[start];
	var last = this.byEnd[end];

	var oldLeft = first.previous;
	var oldRight = last.next;

	var newRight = this.byStart[index];
	if (!newRight && last === this.lastChunk) { return this; }
	var newLeft = newRight ? newRight.previous : this.lastChunk;

	if (oldLeft) { oldLeft.next = oldRight; }
	if (oldRight) { oldRight.previous = oldLeft; }

	if (newLeft) { newLeft.next = first; }
	if (newRight) { newRight.previous = last; }

	if (!first.previous) { this.firstChunk = last.next; }
	if (!last.next) {
		this.lastChunk = first.previous;
		this.lastChunk.next = null;
	}

	first.previous = newLeft;
	last.next = newRight || null;

	if (!newLeft) { this.firstChunk = first; }
	if (!newRight) { this.lastChunk = last; }
	return this;
};

MagicString.prototype.overwrite = function overwrite (start, end, content, options) {
	if (typeof content !== 'string') { throw new TypeError('replacement content must be a string'); }

	while (start < 0) { start += this.original.length; }
	while (end < 0) { end += this.original.length; }

	if (end > this.original.length) { throw new Error('end is out of bounds'); }
	if (start === end)
		{ throw new Error(
			'Cannot overwrite a zero-length range – use appendLeft or prependRight instead'
		); }

	this._split(start);
	this._split(end);

	if (options === true) {
		if (!warned.storeName) {
			console.warn(
				'The final argument to magicString.overwrite(...) should be an options object. See https://github.com/rich-harris/magic-string'
			); // eslint-disable-line no-console
			warned.storeName = true;
		}

		options = { storeName: true };
	}
	var storeName = options !== undefined ? options.storeName : false;
	var contentOnly = options !== undefined ? options.contentOnly : false;

	if (storeName) {
		var original = this.original.slice(start, end);
		Object.defineProperty(this.storedNames, original, { writable: true, value: true, enumerable: true });
	}

	var first = this.byStart[start];
	var last = this.byEnd[end];

	if (first) {
		var chunk = first;
		while (chunk !== last) {
			if (chunk.next !== this.byStart[chunk.end]) {
				throw new Error('Cannot overwrite across a split point');
			}
			chunk = chunk.next;
			chunk.edit('', false);
		}

		first.edit(content, storeName, contentOnly);
	} else {
		// must be inserting at the end
		var newChunk = new Chunk(start, end, '').edit(content, storeName);

		// TODO last chunk in the array may not be the last chunk, if it's moved...
		last.next = newChunk;
		newChunk.previous = last;
	}
	return this;
};

MagicString.prototype.prepend = function prepend (content) {
	if (typeof content !== 'string') { throw new TypeError('outro content must be a string'); }

	this.intro = content + this.intro;
	return this;
};

MagicString.prototype.prependLeft = function prependLeft (index, content) {
	if (typeof content !== 'string') { throw new TypeError('inserted content must be a string'); }

	this._split(index);

	var chunk = this.byEnd[index];

	if (chunk) {
		chunk.prependLeft(content);
	} else {
		this.intro = content + this.intro;
	}
	return this;
};

MagicString.prototype.prependRight = function prependRight (index, content) {
	if (typeof content !== 'string') { throw new TypeError('inserted content must be a string'); }

	this._split(index);

	var chunk = this.byStart[index];

	if (chunk) {
		chunk.prependRight(content);
	} else {
		this.outro = content + this.outro;
	}
	return this;
};

MagicString.prototype.remove = function remove (start, end) {
	while (start < 0) { start += this.original.length; }
	while (end < 0) { end += this.original.length; }

	if (start === end) { return this; }

	if (start < 0 || end > this.original.length) { throw new Error('Character is out of bounds'); }
	if (start > end) { throw new Error('end must be greater than start'); }

	this._split(start);
	this._split(end);

	var chunk = this.byStart[start];

	while (chunk) {
		chunk.intro = '';
		chunk.outro = '';
		chunk.edit('');

		chunk = end > chunk.end ? this.byStart[chunk.end] : null;
	}
	return this;
};

MagicString.prototype.lastChar = function lastChar () {
	if (this.outro.length) { return this.outro[this.outro.length - 1]; }
	var chunk = this.lastChunk;
	do {
		if (chunk.outro.length) { return chunk.outro[chunk.outro.length - 1]; }
		if (chunk.content.length) { return chunk.content[chunk.content.length - 1]; }
		if (chunk.intro.length) { return chunk.intro[chunk.intro.length - 1]; }
	} while ((chunk = chunk.previous));
	if (this.intro.length) { return this.intro[this.intro.length - 1]; }
	return '';
};

MagicString.prototype.lastLine = function lastLine () {
	var lineIndex = this.outro.lastIndexOf(n);
	if (lineIndex !== -1) { return this.outro.substr(lineIndex + 1); }
	var lineStr = this.outro;
	var chunk = this.lastChunk;
	do {
		if (chunk.outro.length > 0) {
			lineIndex = chunk.outro.lastIndexOf(n);
			if (lineIndex !== -1) { return chunk.outro.substr(lineIndex + 1) + lineStr; }
			lineStr = chunk.outro + lineStr;
		}

		if (chunk.content.length > 0) {
			lineIndex = chunk.content.lastIndexOf(n);
			if (lineIndex !== -1) { return chunk.content.substr(lineIndex + 1) + lineStr; }
			lineStr = chunk.content + lineStr;
		}

		if (chunk.intro.length > 0) {
			lineIndex = chunk.intro.lastIndexOf(n);
			if (lineIndex !== -1) { return chunk.intro.substr(lineIndex + 1) + lineStr; }
			lineStr = chunk.intro + lineStr;
		}
	} while ((chunk = chunk.previous));
	lineIndex = this.intro.lastIndexOf(n);
	if (lineIndex !== -1) { return this.intro.substr(lineIndex + 1) + lineStr; }
	return this.intro + lineStr;
};

MagicString.prototype.slice = function slice (start, end) {
		if ( start === void 0 ) start = 0;
		if ( end === void 0 ) end = this.original.length;

	while (start < 0) { start += this.original.length; }
	while (end < 0) { end += this.original.length; }

	var result = '';

	// find start chunk
	var chunk = this.firstChunk;
	while (chunk && (chunk.start > start || chunk.end <= start)) {
		// found end chunk before start
		if (chunk.start < end && chunk.end >= end) {
			return result;
		}

		chunk = chunk.next;
	}

	if (chunk && chunk.edited && chunk.start !== start)
		{ throw new Error(("Cannot use replaced character " + start + " as slice start anchor.")); }

	var startChunk = chunk;
	while (chunk) {
		if (chunk.intro && (startChunk !== chunk || chunk.start === start)) {
			result += chunk.intro;
		}

		var containsEnd = chunk.start < end && chunk.end >= end;
		if (containsEnd && chunk.edited && chunk.end !== end)
			{ throw new Error(("Cannot use replaced character " + end + " as slice end anchor.")); }

		var sliceStart = startChunk === chunk ? start - chunk.start : 0;
		var sliceEnd = containsEnd ? chunk.content.length + end - chunk.end : chunk.content.length;

		result += chunk.content.slice(sliceStart, sliceEnd);

		if (chunk.outro && (!containsEnd || chunk.end === end)) {
			result += chunk.outro;
		}

		if (containsEnd) {
			break;
		}

		chunk = chunk.next;
	}

	return result;
};

// TODO deprecate this? not really very useful
MagicString.prototype.snip = function snip (start, end) {
	var clone = this.clone();
	clone.remove(0, start);
	clone.remove(end, clone.original.length);

	return clone;
};

MagicString.prototype._split = function _split (index) {
	if (this.byStart[index] || this.byEnd[index]) { return; }

	var chunk = this.lastSearchedChunk;
	var searchForward = index > chunk.end;

	while (chunk) {
		if (chunk.contains(index)) { return this._splitChunk(chunk, index); }

		chunk = searchForward ? this.byStart[chunk.end] : this.byEnd[chunk.start];
	}
};

MagicString.prototype._splitChunk = function _splitChunk (chunk, index) {
	if (chunk.edited && chunk.content.length) {
		// zero-length edited chunks are a special case (overlapping replacements)
		var loc = getLocator(this.original)(index);
		throw new Error(
			("Cannot split a chunk that has already been edited (" + (loc.line) + ":" + (loc.column) + " – \"" + (chunk.original) + "\")")
		);
	}

	var newChunk = chunk.split(index);

	this.byEnd[index] = chunk;
	this.byStart[index] = newChunk;
	this.byEnd[newChunk.end] = newChunk;

	if (chunk === this.lastChunk) { this.lastChunk = newChunk; }

	this.lastSearchedChunk = chunk;
	return true;
};

MagicString.prototype.toString = function toString () {
	var str = this.intro;

	var chunk = this.firstChunk;
	while (chunk) {
		str += chunk.toString();
		chunk = chunk.next;
	}

	return str + this.outro;
};

MagicString.prototype.isEmpty = function isEmpty () {
	var chunk = this.firstChunk;
	do {
		if (
			(chunk.intro.length && chunk.intro.trim()) ||
			(chunk.content.length && chunk.content.trim()) ||
			(chunk.outro.length && chunk.outro.trim())
		)
			{ return false; }
	} while ((chunk = chunk.next));
	return true;
};

MagicString.prototype.length = function length () {
	var chunk = this.firstChunk;
	var length = 0;
	do {
		length += chunk.intro.length + chunk.content.length + chunk.outro.length;
	} while ((chunk = chunk.next));
	return length;
};

MagicString.prototype.trimLines = function trimLines () {
	return this.trim('[\\r\\n]');
};

MagicString.prototype.trim = function trim (charType) {
	return this.trimStart(charType).trimEnd(charType);
};

MagicString.prototype.trimEndAborted = function trimEndAborted (charType) {
	var rx = new RegExp((charType || '\\s') + '+$');

	this.outro = this.outro.replace(rx, '');
	if (this.outro.length) { return true; }

	var chunk = this.lastChunk;

	do {
		var end = chunk.end;
		var aborted = chunk.trimEnd(rx);

		// if chunk was trimmed, we have a new lastChunk
		if (chunk.end !== end) {
			if (this.lastChunk === chunk) {
				this.lastChunk = chunk.next;
			}

			this.byEnd[chunk.end] = chunk;
			this.byStart[chunk.next.start] = chunk.next;
			this.byEnd[chunk.next.end] = chunk.next;
		}

		if (aborted) { return true; }
		chunk = chunk.previous;
	} while (chunk);

	return false;
};

MagicString.prototype.trimEnd = function trimEnd (charType) {
	this.trimEndAborted(charType);
	return this;
};
MagicString.prototype.trimStartAborted = function trimStartAborted (charType) {
	var rx = new RegExp('^' + (charType || '\\s') + '+');

	this.intro = this.intro.replace(rx, '');
	if (this.intro.length) { return true; }

	var chunk = this.firstChunk;

	do {
		var end = chunk.end;
		var aborted = chunk.trimStart(rx);

		if (chunk.end !== end) {
			// special case...
			if (chunk === this.lastChunk) { this.lastChunk = chunk.next; }

			this.byEnd[chunk.end] = chunk;
			this.byStart[chunk.next.start] = chunk.next;
			this.byEnd[chunk.next.end] = chunk.next;
		}

		if (aborted) { return true; }
		chunk = chunk.next;
	} while (chunk);

	return false;
};

MagicString.prototype.trimStart = function trimStart (charType) {
	this.trimStartAborted(charType);
	return this;
};

// @ts-check
/** @typedef { import('estree').BaseNode} BaseNode */

/** @typedef {{
	skip: () => void;
	remove: () => void;
	replace: (node: BaseNode) => void;
}} WalkerContext */

class WalkerBase {
	constructor() {
		/** @type {boolean} */
		this.should_skip = false;

		/** @type {boolean} */
		this.should_remove = false;

		/** @type {BaseNode | null} */
		this.replacement = null;

		/** @type {WalkerContext} */
		this.context = {
			skip: () => (this.should_skip = true),
			remove: () => (this.should_remove = true),
			replace: (node) => (this.replacement = node)
		};
	}

	/**
	 *
	 * @param {any} parent
	 * @param {string} prop
	 * @param {number} index
	 * @param {BaseNode} node
	 */
	replace(parent, prop, index, node) {
		if (parent) {
			if (index !== null) {
				parent[prop][index] = node;
			} else {
				parent[prop] = node;
			}
		}
	}

	/**
	 *
	 * @param {any} parent
	 * @param {string} prop
	 * @param {number} index
	 */
	remove(parent, prop, index) {
		if (parent) {
			if (index !== null) {
				parent[prop].splice(index, 1);
			} else {
				delete parent[prop];
			}
		}
	}
}

// @ts-check

/** @typedef { import('estree').BaseNode} BaseNode */
/** @typedef { import('./walker.js').WalkerContext} WalkerContext */

/** @typedef {(
 *    this: WalkerContext,
 *    node: BaseNode,
 *    parent: BaseNode,
 *    key: string,
 *    index: number
 * ) => void} SyncHandler */

class SyncWalker extends WalkerBase {
	/**
	 *
	 * @param {SyncHandler} enter
	 * @param {SyncHandler} leave
	 */
	constructor(enter, leave) {
		super();

		/** @type {SyncHandler} */
		this.enter = enter;

		/** @type {SyncHandler} */
		this.leave = leave;
	}

	/**
	 *
	 * @param {BaseNode} node
	 * @param {BaseNode} parent
	 * @param {string} [prop]
	 * @param {number} [index]
	 * @returns {BaseNode}
	 */
	visit(node, parent, prop, index) {
		if (node) {
			if (this.enter) {
				const _should_skip = this.should_skip;
				const _should_remove = this.should_remove;
				const _replacement = this.replacement;
				this.should_skip = false;
				this.should_remove = false;
				this.replacement = null;

				this.enter.call(this.context, node, parent, prop, index);

				if (this.replacement) {
					node = this.replacement;
					this.replace(parent, prop, index, node);
				}

				if (this.should_remove) {
					this.remove(parent, prop, index);
				}

				const skipped = this.should_skip;
				const removed = this.should_remove;

				this.should_skip = _should_skip;
				this.should_remove = _should_remove;
				this.replacement = _replacement;

				if (skipped) return node;
				if (removed) return null;
			}

			for (const key in node) {
				const value = node[key];

				if (typeof value !== "object") {
					continue;
				} else if (Array.isArray(value)) {
					for (let i = 0; i < value.length; i += 1) {
						if (value[i] !== null && typeof value[i].type === 'string') {
							if (!this.visit(value[i], node, key, i)) {
								// removed
								i--;
							}
						}
					}
				} else if (value !== null && typeof value.type === "string") {
					this.visit(value, node, key, null);
				}
			}

			if (this.leave) {
				const _replacement = this.replacement;
				const _should_remove = this.should_remove;
				this.replacement = null;
				this.should_remove = false;

				this.leave.call(this.context, node, parent, prop, index);

				if (this.replacement) {
					node = this.replacement;
					this.replace(parent, prop, index, node);
				}

				if (this.should_remove) {
					this.remove(parent, prop, index);
				}

				const removed = this.should_remove;

				this.replacement = _replacement;
				this.should_remove = _should_remove;

				if (removed) return null;
			}
		}

		return node;
	}
}

// @ts-check

/** @typedef { import('estree').BaseNode} BaseNode */
/** @typedef { import('./sync.js').SyncHandler} SyncHandler */
/** @typedef { import('./async.js').AsyncHandler} AsyncHandler */

/**
 *
 * @param {BaseNode} ast
 * @param {{
 *   enter?: SyncHandler
 *   leave?: SyncHandler
 * }} walker
 * @returns {BaseNode}
 */
function walk$1(ast, { enter, leave }) {
	const instance = new SyncWalker(enter, leave);
	return instance.visit(ast, null);
}

// https://github.com/vuejs/core/blob/main/packages/compiler-core/src/babelUtils.ts
function walkIdentifiers(root, onIdentifier, onNode) {
    const parentStack = [];
    const knownIds = Object.create(null);
    const rootExp = root.type === 'Program' &&
        root.body[0].type === 'ExpressionStatement' &&
        root.body[0].expression;
    walk$1(root, {
        enter(node, parent) {
            parent && parentStack.push(parent);
            if (parent &&
                parent.type.startsWith('TS') &&
                parent.type !== 'TSAsExpression' &&
                parent.type !== 'TSNonNullExpression' &&
                parent.type !== 'TSTypeAssertion') {
                return this.skip();
            }
            if (onNode)
                onNode(node);
            if (node.type === 'Identifier') {
                const isLocal = !!knownIds[node.name];
                const isRefed = isReferencedIdentifier(node, parent, parentStack);
                if ((isRefed && !isLocal)) {
                    onIdentifier(node, parent, parentStack, isRefed, isLocal);
                }
            }
            else if (node.type === 'ObjectProperty' &&
                parent.type === 'ObjectPattern') {
                node.inPattern = true;
            }
            else if (isFunctionType(node)) {
                // walk function expressions and add its arguments to known identifiers
                // so that we don't prefix them
                walkFunctionParams(node, id => markScopeIdentifier(node, id, knownIds));
            }
            else if (node.type === 'BlockStatement') {
                // #3445 record block-level local variables
                walkBlockDeclarations(node, id => markScopeIdentifier(node, id, knownIds));
            }
        },
        leave(node, parent) {
            parent && parentStack.pop();
            if (node !== rootExp && node.scopeIds) {
                for (const id of node.scopeIds) {
                    knownIds[id]--;
                    if (knownIds[id] === 0) {
                        delete knownIds[id];
                    }
                }
            }
        }
    });
}
function isReferencedIdentifier(id, parent, parentStack) {
    if (!parent) {
        return true;
    }
    // is a special keyword but parsed as identifier
    if (id.name === 'arguments') {
        return false;
    }
    if (isReferenced(id, parent)) {
        return true;
    }
    // babel's isReferenced check returns false for ids being assigned to, so we
    // need to cover those cases here
    switch (parent.type) {
        case 'AssignmentExpression':
        case 'AssignmentPattern':
            return true;
        case 'ObjectPattern':
        case 'ArrayPattern':
            return isInDestructureAssignment(parent, parentStack);
    }
    return false;
}
function isInDestructureAssignment(parent, parentStack) {
    if (parent &&
        (parent.type === 'ObjectProperty' || parent.type === 'ArrayPattern')) {
        let i = parentStack.length;
        while (i--) {
            const p = parentStack[i];
            if (p.type === 'AssignmentExpression') {
                return true;
            }
            else if (p.type !== 'ObjectProperty' && !p.type.endsWith('Pattern')) {
                break;
            }
        }
    }
    return false;
}
function walkFunctionParams(node, onIdent) {
    for (const p of node.params) {
        for (const id of extractIdentifiers(p)) {
            onIdent(id);
        }
    }
}
function walkBlockDeclarations(block, onIdent) {
    for (const stmt of block.body) {
        if (stmt.type === 'VariableDeclaration') {
            if (stmt.declare)
                continue;
            for (const decl of stmt.declarations) {
                for (const id of extractIdentifiers(decl.id)) {
                    onIdent(id);
                }
            }
        }
        else if (stmt.type === 'FunctionDeclaration' ||
            stmt.type === 'ClassDeclaration') {
            if (stmt.declare || !stmt.id)
                continue;
            onIdent(stmt.id);
        }
    }
}
function extractIdentifiers(param, nodes = []) {
    switch (param.type) {
        case 'Identifier':
            nodes.push(param);
            break;
        case 'MemberExpression':
            let object = param;
            while (object.type === 'MemberExpression') {
                object = object.object;
            }
            nodes.push(object);
            break;
        case 'ObjectPattern':
            for (const prop of param.properties) {
                if (prop.type === 'RestElement') {
                    extractIdentifiers(prop.argument, nodes);
                }
                else {
                    extractIdentifiers(prop.value, nodes);
                }
            }
            break;
        case 'ArrayPattern':
            param.elements.forEach(element => {
                if (element)
                    extractIdentifiers(element, nodes);
            });
            break;
        case 'RestElement':
            extractIdentifiers(param.argument, nodes);
            break;
        case 'AssignmentPattern':
            extractIdentifiers(param.left, nodes);
            break;
    }
    return nodes;
}
function markScopeIdentifier(node, child, knownIds) {
    const { name } = child;
    if (node.scopeIds && node.scopeIds.has(name)) {
        return;
    }
    if (name in knownIds) {
        knownIds[name]++;
    }
    else {
        knownIds[name] = 1;
    }
    (node.scopeIds || (node.scopeIds = new Set())).add(name);
}
const isFunctionType = (node) => {
    return /Function(?:Expression|Declaration)$|Method$/.test(node.type);
};
const isStaticProperty = (node) => node &&
    (node.type === 'ObjectProperty' || node.type === 'ObjectMethod') &&
    !node.computed;
/**
 * Copied from https://github.com/babel/babel/blob/main/packages/babel-types/src/validators/isReferenced.ts
 * To avoid runtime dependency on @babel/types (which includes process references)
 * This file should not change very often in babel but we may need to keep it
 * up-to-date from time to time.
 *
 * https://github.com/babel/babel/blob/main/LICENSE
 *
 */
function isReferenced(node, parent, grandparent) {
    switch (parent.type) {
        // yes: PARENT[NODE]
        // yes: NODE.child
        // no: parent.NODE
        case 'MemberExpression':
        case 'OptionalMemberExpression':
            if (parent.property === node) {
                return !!parent.computed;
            }
            return parent.object === node;
        case 'JSXMemberExpression':
            return parent.object === node;
        // no: let NODE = init;
        // yes: let id = NODE;
        case 'VariableDeclarator':
            return parent.init === node;
        // yes: () => NODE
        // no: (NODE) => {}
        case 'ArrowFunctionExpression':
            return parent.body === node;
        // no: class { #NODE; }
        // no: class { get #NODE() {} }
        // no: class { #NODE() {} }
        // no: class { fn() { return this.#NODE; } }
        case 'PrivateName':
            return false;
        // no: class { NODE() {} }
        // yes: class { [NODE]() {} }
        // no: class { foo(NODE) {} }
        case 'ClassMethod':
        case 'ClassPrivateMethod':
        case 'ObjectMethod':
            if (parent.key === node) {
                return !!parent.computed;
            }
            return false;
        // yes: { [NODE]: "" }
        // no: { NODE: "" }
        // depends: { NODE }
        // depends: { key: NODE }
        case 'ObjectProperty':
            if (parent.key === node) {
                return !!parent.computed;
            }
            // parent.value === node
            return !grandparent || grandparent.type !== 'ObjectPattern';
        // no: class { NODE = value; }
        // yes: class { [NODE] = value; }
        // yes: class { key = NODE; }
        case 'ClassProperty':
            if (parent.key === node) {
                return !!parent.computed;
            }
            return true;
        case 'ClassPrivateProperty':
            return parent.key !== node;
        // no: class NODE {}
        // yes: class Foo extends NODE {}
        case 'ClassDeclaration':
        case 'ClassExpression':
            return parent.superClass === node;
        // yes: left = NODE;
        // no: NODE = right;
        case 'AssignmentExpression':
            return parent.right === node;
        // no: [NODE = foo] = [];
        // yes: [foo = NODE] = [];
        case 'AssignmentPattern':
            return parent.right === node;
        // no: NODE: for (;;) {}
        case 'LabeledStatement':
            return false;
        // no: try {} catch (NODE) {}
        case 'CatchClause':
            return false;
        // no: function foo(...NODE) {}
        case 'RestElement':
            return false;
        case 'BreakStatement':
        case 'ContinueStatement':
            return false;
        // no: function NODE() {}
        // no: function foo(NODE) {}
        case 'FunctionDeclaration':
        case 'FunctionExpression':
            return false;
        // no: export NODE from "foo";
        // no: export * as NODE from "foo";
        case 'ExportNamespaceSpecifier':
        case 'ExportDefaultSpecifier':
            return false;
        // no: export { foo as NODE };
        // yes: export { NODE as foo };
        // no: export { NODE as foo } from "foo";
        case 'ExportSpecifier':
            // @ts-expect-error
            if (grandparent === null || grandparent === void 0 ? void 0 : grandparent.source) {
                return false;
            }
            return parent.local === node;
        // no: import NODE from "foo";
        // no: import * as NODE from "foo";
        // no: import { NODE as foo } from "foo";
        // no: import { foo as NODE } from "foo";
        // no: import NODE from "bar";
        case 'ImportDefaultSpecifier':
        case 'ImportNamespaceSpecifier':
        case 'ImportSpecifier':
            return false;
        // no: import "foo" assert { NODE: "json" }
        case 'ImportAttribute':
            return false;
        // no: <div NODE="foo" />
        case 'JSXAttribute':
            return false;
        // no: [NODE] = [];
        // no: ({ NODE }) = [];
        case 'ObjectPattern':
        case 'ArrayPattern':
            return false;
        // no: new.NODE
        // no: NODE.target
        case 'MetaProperty':
            return false;
        // yes: type X = { someProperty: NODE }
        // no: type X = { NODE: OtherType }
        case 'ObjectTypeProperty':
            return parent.key !== node;
        // yes: enum X { Foo = NODE }
        // no: enum X { NODE }
        case 'TSEnumMember':
            return parent.id !== node;
        // yes: { [NODE]: value }
        // no: { NODE: value }
        case 'TSPropertySignature':
            if (parent.key === node) {
                return !!parent.computed;
            }
            return true;
    }
    return true;
}

const range = 2;
function generateCodeFrame(source, start = 0, end = source.length) {
    const lines = source.split(/\r?\n/);
    let count = 0;
    const res = [];
    for (let i = 0; i < lines.length; i++) {
        count += lines[i].length + 1;
        if (count >= start) {
            for (let j = i - range; j <= i + range || end > count; j++) {
                if (j < 0 || j >= lines.length)
                    continue;
                res.push(`${j + 1}${repeat(` `, 3 - String(j + 1).length)}|  ${lines[j]}`);
                const lineLength = lines[j].length;
                if (j === i) {
                    // push underline
                    const pad = start - (count - lineLength) + 1;
                    const length = end > count ? lineLength - pad : end - start;
                    res.push(`   |  ` + repeat(` `, pad) + repeat(`^`, length));
                }
                else if (j > i) {
                    if (end > count) {
                        const length = Math.min(end - count, lineLength);
                        res.push(`   |  ` + repeat(`^`, length));
                    }
                    count += lineLength + 1;
                }
            }
            break;
        }
    }
    return res.join('\n');
}
function repeat(str, n) {
    let result = '';
    if (n > 0) {
        // eslint-disable-next-line no-constant-condition
        while (true) {
            // eslint-disable-line
            if (n & 1)
                result += str;
            n >>>= 1;
            if (n <= 0)
                break;
            str += str;
        }
    }
    return result;
}

// can we use __proto__?
const hasProto = '__proto__' in {};
// Browser environment sniffing
const inBrowser = typeof window !== 'undefined';
const UA = inBrowser && window.navigator.userAgent.toLowerCase();
const isIE = UA && /msie|trident/.test(UA);
UA && UA.indexOf('msie 9.0') > 0;
const isEdge = UA && UA.indexOf('edge/') > 0;
UA && UA.indexOf('android') > 0;
UA && /iphone|ipad|ipod|ios/.test(UA);
UA && /chrome\/\d+/.test(UA) && !isEdge;
UA && /phantomjs/.test(UA);
UA && UA.match(/firefox\/(\d+)/);
// Firefox has a "watch" function on Object.prototype...
// @ts-expect-error firebox support
const nativeWatch = {}.watch;
let supportsPassive = false;
if (inBrowser) {
    try {
        const opts = {};
        Object.defineProperty(opts, 'passive', {
            get() {
                /* istanbul ignore next */
                supportsPassive = true;
            }
        }); // https://github.com/facebook/flow/issues/285
        window.addEventListener('test-passive', null, opts);
    }
    catch (e) { }
}
// this needs to be lazy-evaled because vue may be required before
// vue-server-renderer can set VUE_ENV
let _isServer;
const isServerRendering = () => {
    if (_isServer === undefined) {
        /* istanbul ignore if */
        if (!inBrowser && typeof global !== 'undefined') {
            // detect presence of vue-server-renderer and avoid
            // Webpack shimming the process
            _isServer =
                global['process'] && global['process'].env.VUE_ENV === 'server';
        }
        else {
            _isServer = false;
        }
    }
    return _isServer;
};
/* istanbul ignore next */
function isNative(Ctor) {
    return typeof Ctor === 'function' && /native code/.test(Ctor.toString());
}
const hasSymbol = typeof Symbol !== 'undefined' &&
    isNative(Symbol) &&
    typeof Reflect !== 'undefined' &&
    isNative(Reflect.ownKeys);
let _Set; // $flow-disable-line
/* istanbul ignore if */ if (typeof Set !== 'undefined' && isNative(Set)) {
    // use native Set when available.
    _Set = Set;
}
else {
    // a non-standard Set polyfill that only works with primitive keys.
    _Set = class Set {
        constructor() {
            this.set = Object.create(null);
        }
        has(key) {
            return this.set[key] === true;
        }
        add(key) {
            this.set[key] = true;
        }
        clear() {
            this.set = Object.create(null);
        }
    };
}

const ASSET_TYPES = ['component', 'directive', 'filter'];
const LIFECYCLE_HOOKS = [
    'beforeCreate',
    'created',
    'beforeMount',
    'mounted',
    'beforeUpdate',
    'updated',
    'beforeDestroy',
    'destroyed',
    'activated',
    'deactivated',
    'errorCaptured',
    'serverPrefetch',
    'renderTracked',
    'renderTriggered'
];

var config = {
    /**
     * Option merge strategies (used in core/util/options)
     */
    // $flow-disable-line
    optionMergeStrategies: Object.create(null),
    /**
     * Whether to suppress warnings.
     */
    silent: false,
    /**
     * Show production mode tip message on boot?
     */
    productionTip: process.env.NODE_ENV !== 'production',
    /**
     * Whether to enable devtools
     */
    devtools: process.env.NODE_ENV !== 'production',
    /**
     * Whether to record perf
     */
    performance: false,
    /**
     * Error handler for watcher errors
     */
    errorHandler: null,
    /**
     * Warn handler for watcher warns
     */
    warnHandler: null,
    /**
     * Ignore certain custom elements
     */
    ignoredElements: [],
    /**
     * Custom user key aliases for v-on
     */
    // $flow-disable-line
    keyCodes: Object.create(null),
    /**
     * Check if a tag is reserved so that it cannot be registered as a
     * component. This is platform-dependent and may be overwritten.
     */
    isReservedTag: no,
    /**
     * Check if an attribute is reserved so that it cannot be used as a component
     * prop. This is platform-dependent and may be overwritten.
     */
    isReservedAttr: no,
    /**
     * Check if a tag is an unknown element.
     * Platform-dependent.
     */
    isUnknownElement: no,
    /**
     * Get the namespace of an element
     */
    getTagNamespace: noop,
    /**
     * Parse the real tag name for the specific platform.
     */
    parsePlatformTagName: identity,
    /**
     * Check if an attribute must be bound using property, e.g. value
     * Platform-dependent.
     */
    mustUseProp: no,
    /**
     * Perform updates asynchronously. Intended to be used by Vue Test Utils
     * This will significantly reduce performance if set to false.
     */
    async: true,
    /**
     * Exposed for legacy reasons
     */
    _lifecycleHooks: LIFECYCLE_HOOKS
};

let currentInstance = null;
/**
 * @internal
 */
function setCurrentInstance(vm = null) {
    if (!vm)
        currentInstance && currentInstance._scope.off();
    currentInstance = vm;
    vm && vm._scope.on();
}

/**
 * @internal
 */
class VNode {
    constructor(tag, data, children, text, elm, context, componentOptions, asyncFactory) {
        this.tag = tag;
        this.data = data;
        this.children = children;
        this.text = text;
        this.elm = elm;
        this.ns = undefined;
        this.context = context;
        this.fnContext = undefined;
        this.fnOptions = undefined;
        this.fnScopeId = undefined;
        this.key = data && data.key;
        this.componentOptions = componentOptions;
        this.componentInstance = undefined;
        this.parent = undefined;
        this.raw = false;
        this.isStatic = false;
        this.isRootInsert = true;
        this.isComment = false;
        this.isCloned = false;
        this.isOnce = false;
        this.asyncFactory = asyncFactory;
        this.asyncMeta = undefined;
        this.isAsyncPlaceholder = false;
    }
    // DEPRECATED: alias for componentInstance for backwards compat.
    /* istanbul ignore next */
    get child() {
        return this.componentInstance;
    }
}
const createEmptyVNode = (text = '') => {
    const node = new VNode();
    node.text = text;
    node.isComment = true;
    return node;
};
function createTextVNode(val) {
    return new VNode(undefined, undefined, undefined, String(val));
}
// optimized shallow clone
// used for static nodes and slot nodes because they may be reused across
// multiple renders, cloning them avoids errors when DOM manipulations rely
// on their elm reference.
function cloneVNode(vnode) {
    const cloned = new VNode(vnode.tag, vnode.data, 
    // #7975
    // clone children array to avoid mutating original in case of cloning
    // a child.
    vnode.children && vnode.children.slice(), vnode.text, vnode.elm, vnode.context, vnode.componentOptions, vnode.asyncFactory);
    cloned.ns = vnode.ns;
    cloned.isStatic = vnode.isStatic;
    cloned.key = vnode.key;
    cloned.isComment = vnode.isComment;
    cloned.fnContext = vnode.fnContext;
    cloned.fnOptions = vnode.fnOptions;
    cloned.fnScopeId = vnode.fnScopeId;
    cloned.asyncMeta = vnode.asyncMeta;
    cloned.isCloned = true;
    return cloned;
}

/* not type checking this file because flow doesn't play well with Proxy */
if (process.env.NODE_ENV !== 'production') {
    makeMap('Infinity,undefined,NaN,isFinite,isNaN,' +
        'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' +
        'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,BigInt,' +
        'require' // for Webpack/Browserify
    );
    const hasProxy = typeof Proxy !== 'undefined' && isNative(Proxy);
    if (hasProxy) {
        const isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
        config.keyCodes = new Proxy(config.keyCodes, {
            set(target, key, value) {
                if (isBuiltInModifier(key)) {
                    warn$3(`Avoid overwriting built-in modifier in config.keyCodes: .${key}`);
                    return false;
                }
                else {
                    target[key] = value;
                    return true;
                }
            }
        });
    }
}

let uid = 0;
/**
 * A dep is an observable that can have multiple
 * directives subscribing to it.
 * @internal
 */
class Dep {
    constructor() {
        // pending subs cleanup
        this._pending = false;
        this.id = uid++;
        this.subs = [];
    }
    addSub(sub) {
        this.subs.push(sub);
    }
    removeSub(sub) {
        // #12696 deps with massive amount of subscribers are extremely slow to
        // clean up in Chromium
        // to workaround this, we unset the sub for now, and clear them on
        // next scheduler flush.
        this.subs[this.subs.indexOf(sub)] = null;
        if (!this._pending) {
            this._pending = true;
        }
    }
    depend(info) {
        if (Dep.target) {
            Dep.target.addDep(this);
            if (process.env.NODE_ENV !== 'production' && info && Dep.target.onTrack) {
                Dep.target.onTrack(Object.assign({ effect: Dep.target }, info));
            }
        }
    }
    notify(info) {
        // stabilize the subscriber list first
        const subs = this.subs.filter(s => s);
        if (process.env.NODE_ENV !== 'production' && !config.async) {
            // subs aren't sorted in scheduler if not running async
            // we need to sort them now to make sure they fire in correct
            // order
            subs.sort((a, b) => a.id - b.id);
        }
        for (let i = 0, l = subs.length; i < l; i++) {
            const sub = subs[i];
            if (process.env.NODE_ENV !== 'production' && info) {
                sub.onTrigger &&
                    sub.onTrigger(Object.assign({ effect: subs[i] }, info));
            }
            sub.update();
        }
    }
}
// The current target watcher being evaluated.
// This is globally unique because only one watcher
// can be evaluated at a time.
Dep.target = null;
const targetStack = [];
function pushTarget(target) {
    targetStack.push(target);
    Dep.target = target;
}
function popTarget() {
    targetStack.pop();
    Dep.target = targetStack[targetStack.length - 1];
}

/*
 * not type checking this file because flow doesn't play well with
 * dynamically accessing methods on Array prototype
 */
const arrayProto = Array.prototype;
const arrayMethods = Object.create(arrayProto);
const methodsToPatch = [
    'push',
    'pop',
    'shift',
    'unshift',
    'splice',
    'sort',
    'reverse'
];
/**
 * Intercept mutating methods and emit events
 */
methodsToPatch.forEach(function (method) {
    // cache original method
    const original = arrayProto[method];
    def(arrayMethods, method, function mutator(...args) {
        const result = original.apply(this, args);
        const ob = this.__ob__;
        let inserted;
        switch (method) {
            case 'push':
            case 'unshift':
                inserted = args;
                break;
            case 'splice':
                inserted = args.slice(2);
                break;
        }
        if (inserted)
            ob.observeArray(inserted);
        // notify change
        if (process.env.NODE_ENV !== 'production') {
            ob.dep.notify({
                type: "array mutation" /* TriggerOpTypes.ARRAY_MUTATION */,
                target: this,
                key: method
            });
        }
        else {
            ob.dep.notify();
        }
        return result;
    });
});

const arrayKeys = Object.getOwnPropertyNames(arrayMethods);
const NO_INITIAL_VALUE = {};
/**
 * In some cases we may want to disable observation inside a component's
 * update computation.
 */
let shouldObserve = true;
function toggleObserving(value) {
    shouldObserve = value;
}
// ssr mock dep
const mockDep = {
    notify: noop,
    depend: noop,
    addSub: noop,
    removeSub: noop
};
/**
 * Observer class that is attached to each observed
 * object. Once attached, the observer converts the target
 * object's property keys into getter/setters that
 * collect dependencies and dispatch updates.
 */
class Observer {
    constructor(value, shallow = false, mock = false) {
        this.value = value;
        this.shallow = shallow;
        this.mock = mock;
        // this.value = value
        this.dep = mock ? mockDep : new Dep();
        this.vmCount = 0;
        def(value, '__ob__', this);
        if (isArray(value)) {
            if (!mock) {
                if (hasProto) {
                    value.__proto__ = arrayMethods;
                    /* eslint-enable no-proto */
                }
                else {
                    for (let i = 0, l = arrayKeys.length; i < l; i++) {
                        const key = arrayKeys[i];
                        def(value, key, arrayMethods[key]);
                    }
                }
            }
            if (!shallow) {
                this.observeArray(value);
            }
        }
        else {
            /**
             * Walk through all properties and convert them into
             * getter/setters. This method should only be called when
             * value type is Object.
             */
            const keys = Object.keys(value);
            for (let i = 0; i < keys.length; i++) {
                const key = keys[i];
                defineReactive(value, key, NO_INITIAL_VALUE, undefined, shallow, mock);
            }
        }
    }
    /**
     * Observe a list of Array items.
     */
    observeArray(value) {
        for (let i = 0, l = value.length; i < l; i++) {
            observe(value[i], false, this.mock);
        }
    }
}
// helpers
/**
 * Attempt to create an observer instance for a value,
 * returns the new observer if successfully observed,
 * or the existing observer if the value already has one.
 */
function observe(value, shallow, ssrMockReactivity) {
    if (value && hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
        return value.__ob__;
    }
    if (shouldObserve &&
        (ssrMockReactivity || !isServerRendering()) &&
        (isArray(value) || isPlainObject(value)) &&
        Object.isExtensible(value) &&
        !value.__v_skip /* ReactiveFlags.SKIP */ &&
        !isRef(value) &&
        !(value instanceof VNode)) {
        return new Observer(value, shallow, ssrMockReactivity);
    }
}
/**
 * Define a reactive property on an Object.
 */
function defineReactive(obj, key, val, customSetter, shallow, mock) {
    const dep = new Dep();
    const property = Object.getOwnPropertyDescriptor(obj, key);
    if (property && property.configurable === false) {
        return;
    }
    // cater for pre-defined getter/setters
    const getter = property && property.get;
    const setter = property && property.set;
    if ((!getter || setter) &&
        (val === NO_INITIAL_VALUE || arguments.length === 2)) {
        val = obj[key];
    }
    let childOb = !shallow && observe(val, false, mock);
    Object.defineProperty(obj, key, {
        enumerable: true,
        configurable: true,
        get: function reactiveGetter() {
            const value = getter ? getter.call(obj) : val;
            if (Dep.target) {
                if (process.env.NODE_ENV !== 'production') {
                    dep.depend({
                        target: obj,
                        type: "get" /* TrackOpTypes.GET */,
                        key
                    });
                }
                else {
                    dep.depend();
                }
                if (childOb) {
                    childOb.dep.depend();
                    if (isArray(value)) {
                        dependArray(value);
                    }
                }
            }
            return isRef(value) && !shallow ? value.value : value;
        },
        set: function reactiveSetter(newVal) {
            const value = getter ? getter.call(obj) : val;
            if (!hasChanged(value, newVal)) {
                return;
            }
            if (process.env.NODE_ENV !== 'production' && customSetter) {
                customSetter();
            }
            if (setter) {
                setter.call(obj, newVal);
            }
            else if (getter) {
                // #7981: for accessor properties without setter
                return;
            }
            else if (!shallow && isRef(value) && !isRef(newVal)) {
                value.value = newVal;
                return;
            }
            else {
                val = newVal;
            }
            childOb = !shallow && observe(newVal, false, mock);
            if (process.env.NODE_ENV !== 'production') {
                dep.notify({
                    type: "set" /* TriggerOpTypes.SET */,
                    target: obj,
                    key,
                    newValue: newVal,
                    oldValue: value
                });
            }
            else {
                dep.notify();
            }
        }
    });
    return dep;
}
function set(target, key, val) {
    if (process.env.NODE_ENV !== 'production' && (isUndef(target) || isPrimitive(target))) {
        warn$3(`Cannot set reactive property on undefined, null, or primitive value: ${target}`);
    }
    if (isReadonly(target)) {
        process.env.NODE_ENV !== 'production' && warn$3(`Set operation on key "${key}" failed: target is readonly.`);
        return;
    }
    const ob = target.__ob__;
    if (isArray(target) && isValidArrayIndex(key)) {
        target.length = Math.max(target.length, key);
        target.splice(key, 1, val);
        // when mocking for SSR, array methods are not hijacked
        if (ob && !ob.shallow && ob.mock) {
            observe(val, false, true);
        }
        return val;
    }
    if (key in target && !(key in Object.prototype)) {
        target[key] = val;
        return val;
    }
    if (target._isVue || (ob && ob.vmCount)) {
        process.env.NODE_ENV !== 'production' &&
            warn$3('Avoid adding reactive properties to a Vue instance or its root $data ' +
                'at runtime - declare it upfront in the data option.');
        return val;
    }
    if (!ob) {
        target[key] = val;
        return val;
    }
    defineReactive(ob.value, key, val, undefined, ob.shallow, ob.mock);
    if (process.env.NODE_ENV !== 'production') {
        ob.dep.notify({
            type: "add" /* TriggerOpTypes.ADD */,
            target: target,
            key,
            newValue: val,
            oldValue: undefined
        });
    }
    else {
        ob.dep.notify();
    }
    return val;
}
/**
 * Collect dependencies on array elements when the array is touched, since
 * we cannot intercept array element access like property getters.
 */
function dependArray(value) {
    for (let e, i = 0, l = value.length; i < l; i++) {
        e = value[i];
        if (e && e.__ob__) {
            e.__ob__.dep.depend();
        }
        if (isArray(e)) {
            dependArray(e);
        }
    }
}

function isReadonly(value) {
    return !!(value && value.__v_isReadonly);
}

function isRef(r) {
    return !!(r && r.__v_isRef === true);
}

if (process.env.NODE_ENV !== 'production') ;

const normalizeEvent = cached((name) => {
    const passive = name.charAt(0) === '&';
    name = passive ? name.slice(1) : name;
    const once = name.charAt(0) === '~'; // Prefixed last, checked first
    name = once ? name.slice(1) : name;
    const capture = name.charAt(0) === '!';
    name = capture ? name.slice(1) : name;
    return {
        name,
        once,
        capture,
        passive
    };
});
function createFnInvoker(fns, vm) {
    function invoker() {
        const fns = invoker.fns;
        if (isArray(fns)) {
            const cloned = fns.slice();
            for (let i = 0; i < cloned.length; i++) {
                invokeWithErrorHandling(cloned[i], null, arguments, vm, `v-on handler`);
            }
        }
        else {
            // return handler return value for single handlers
            return invokeWithErrorHandling(fns, null, arguments, vm, `v-on handler`);
        }
    }
    invoker.fns = fns;
    return invoker;
}
function updateListeners(on, oldOn, add, remove, createOnceHandler, vm) {
    let name, cur, old, event;
    for (name in on) {
        cur = on[name];
        old = oldOn[name];
        event = normalizeEvent(name);
        if (isUndef(cur)) {
            process.env.NODE_ENV !== 'production' &&
                warn$3(`Invalid handler for event "${event.name}": got ` + String(cur), vm);
        }
        else if (isUndef(old)) {
            if (isUndef(cur.fns)) {
                cur = on[name] = createFnInvoker(cur, vm);
            }
            if (isTrue(event.once)) {
                cur = on[name] = createOnceHandler(event.name, cur, event.capture);
            }
            add(event.name, cur, event.capture, event.passive, event.params);
        }
        else if (cur !== old) {
            old.fns = cur;
            on[name] = old;
        }
    }
    for (name in oldOn) {
        if (isUndef(on[name])) {
            event = normalizeEvent(name);
            remove(event.name, oldOn[name], event.capture);
        }
    }
}

function extractPropsFromVNodeData(data, Ctor, tag) {
    // we are only extracting raw values here.
    // validation and default values are handled in the child
    // component itself.
    const propOptions = Ctor.options.props;
    if (isUndef(propOptions)) {
        return;
    }
    const res = {};
    const { attrs, props } = data;
    if (isDef(attrs) || isDef(props)) {
        for (const key in propOptions) {
            const altKey = hyphenate(key);
            if (process.env.NODE_ENV !== 'production') {
                const keyInLowerCase = key.toLowerCase();
                if (key !== keyInLowerCase && attrs && hasOwn(attrs, keyInLowerCase)) {
                    tip(`Prop "${keyInLowerCase}" is passed to component ` +
                        `${formatComponentName(
                        // @ts-expect-error tag is string
                        tag || Ctor)}, but the declared prop name is` +
                        ` "${key}". ` +
                        `Note that HTML attributes are case-insensitive and camelCased ` +
                        `props need to use their kebab-case equivalents when using in-DOM ` +
                        `templates. You should probably use "${altKey}" instead of "${key}".`);
                }
            }
            checkProp(res, props, key, altKey, true) ||
                checkProp(res, attrs, key, altKey, false);
        }
    }
    return res;
}
function checkProp(res, hash, key, altKey, preserve) {
    if (isDef(hash)) {
        if (hasOwn(hash, key)) {
            res[key] = hash[key];
            if (!preserve) {
                delete hash[key];
            }
            return true;
        }
        else if (hasOwn(hash, altKey)) {
            res[key] = hash[altKey];
            if (!preserve) {
                delete hash[altKey];
            }
            return true;
        }
    }
    return false;
}

// The template compiler attempts to minimize the need for normalization by
// statically analyzing the template at compile time.
//
// For plain HTML markup, normalization can be completely skipped because the
// generated render function is guaranteed to return Array<VNode>. There are
// two cases where extra normalization is needed:
// 1. When the children contains components - because a functional component
// may return an Array instead of a single root. In this case, just a simple
// normalization is needed - if any child is an Array, we flatten the whole
// thing with Array.prototype.concat. It is guaranteed to be only 1-level deep
// because functional components already normalize their own children.
function simpleNormalizeChildren(children) {
    for (let i = 0; i < children.length; i++) {
        if (isArray(children[i])) {
            return Array.prototype.concat.apply([], children);
        }
    }
    return children;
}
// 2. When the children contains constructs that always generated nested Arrays,
// e.g. <template>, <slot>, v-for, or when the children is provided by user
// with hand-written render functions / JSX. In such cases a full normalization
// is needed to cater to all possible types of children values.
function normalizeChildren(children) {
    return isPrimitive(children)
        ? [createTextVNode(children)]
        : isArray(children)
            ? normalizeArrayChildren(children)
            : undefined;
}
function isTextNode(node) {
    return isDef(node) && isDef(node.text) && isFalse(node.isComment);
}
function normalizeArrayChildren(children, nestedIndex) {
    const res = [];
    let i, c, lastIndex, last;
    for (i = 0; i < children.length; i++) {
        c = children[i];
        if (isUndef(c) || typeof c === 'boolean')
            continue;
        lastIndex = res.length - 1;
        last = res[lastIndex];
        //  nested
        if (isArray(c)) {
            if (c.length > 0) {
                c = normalizeArrayChildren(c, `${nestedIndex || ''}_${i}`);
                // merge adjacent text nodes
                if (isTextNode(c[0]) && isTextNode(last)) {
                    res[lastIndex] = createTextVNode(last.text + c[0].text);
                    c.shift();
                }
                res.push.apply(res, c);
            }
        }
        else if (isPrimitive(c)) {
            if (isTextNode(last)) {
                // merge adjacent text nodes
                // this is necessary for SSR hydration because text nodes are
                // essentially merged when rendered to HTML strings
                res[lastIndex] = createTextVNode(last.text + c);
            }
            else if (c !== '') {
                // convert primitive to vnode
                res.push(createTextVNode(c));
            }
        }
        else {
            if (isTextNode(c) && isTextNode(last)) {
                // merge adjacent text nodes
                res[lastIndex] = createTextVNode(last.text + c.text);
            }
            else {
                // default key for nested array children (likely generated by v-for)
                if (isTrue(children._isVList) &&
                    isDef(c.tag) &&
                    isUndef(c.key) &&
                    isDef(nestedIndex)) {
                    c.key = `__vlist${nestedIndex}_${i}__`;
                }
                res.push(c);
            }
        }
    }
    return res;
}

const SIMPLE_NORMALIZE = 1;
const ALWAYS_NORMALIZE = 2;
// wrapper function for providing a more flexible interface
// without getting yelled at by flow
function createElement(context, tag, data, children, normalizationType, alwaysNormalize) {
    if (isArray(data) || isPrimitive(data)) {
        normalizationType = children;
        children = data;
        data = undefined;
    }
    if (isTrue(alwaysNormalize)) {
        normalizationType = ALWAYS_NORMALIZE;
    }
    return _createElement(context, tag, data, children, normalizationType);
}
function _createElement(context, tag, data, children, normalizationType) {
    if (isDef(data) && isDef(data.__ob__)) {
        process.env.NODE_ENV !== 'production' &&
            warn$3(`Avoid using observed data object as vnode data: ${JSON.stringify(data)}\n` + 'Always create fresh vnode data objects in each render!', context);
        return createEmptyVNode();
    }
    // object syntax in v-bind
    if (isDef(data) && isDef(data.is)) {
        tag = data.is;
    }
    if (!tag) {
        // in case of component :is set to falsy value
        return createEmptyVNode();
    }
    // warn against non-primitive key
    if (process.env.NODE_ENV !== 'production' && isDef(data) && isDef(data.key) && !isPrimitive(data.key)) {
        warn$3('Avoid using non-primitive value as key, ' +
            'use string/number value instead.', context);
    }
    // support single function children as default scoped slot
    if (isArray(children) && isFunction(children[0])) {
        data = data || {};
        data.scopedSlots = { default: children[0] };
        children.length = 0;
    }
    if (normalizationType === ALWAYS_NORMALIZE) {
        children = normalizeChildren(children);
    }
    else if (normalizationType === SIMPLE_NORMALIZE) {
        children = simpleNormalizeChildren(children);
    }
    let vnode, ns;
    if (typeof tag === 'string') {
        let Ctor;
        ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
        if ((!data || !data.pre) &&
            isDef((Ctor = resolveAsset(context.$options, 'components', tag)))) {
            // component
            vnode = createComponent(Ctor, data, context, children, tag);
        }
        else {
            // unknown or unlisted namespaced elements
            // check at runtime because it may get assigned a namespace when its
            // parent normalizes children
            vnode = new VNode(tag, data, children, undefined, undefined, context);
        }
    }
    else {
        // direct component options / constructor
        vnode = createComponent(tag, data, context, children);
    }
    if (isArray(vnode)) {
        return vnode;
    }
    else if (isDef(vnode)) {
        if (isDef(ns))
            applyNS(vnode, ns);
        if (isDef(data))
            registerDeepBindings(data);
        return vnode;
    }
    else {
        return createEmptyVNode();
    }
}
function applyNS(vnode, ns, force) {
    vnode.ns = ns;
    if (vnode.tag === 'foreignObject') {
        // use default namespace inside foreignObject
        ns = undefined;
        force = true;
    }
    if (isDef(vnode.children)) {
        for (let i = 0, l = vnode.children.length; i < l; i++) {
            const child = vnode.children[i];
            if (isDef(child.tag) &&
                (isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
                applyNS(child, ns, force);
            }
        }
    }
}
// ref #5318
// necessary to ensure parent re-render when deep bindings like :style and
// :class are used on slot nodes
function registerDeepBindings(data) {
    if (isObject$1(data.style)) {
        traverse(data.style);
    }
    if (isObject$1(data.class)) {
        traverse(data.class);
    }
}

/**
 * Runtime helper for rendering v-for lists.
 */
function renderList(val, render) {
    let ret = null, i, l, keys, key;
    if (isArray(val) || typeof val === 'string') {
        ret = new Array(val.length);
        for (i = 0, l = val.length; i < l; i++) {
            ret[i] = render(val[i], i);
        }
    }
    else if (typeof val === 'number') {
        ret = new Array(val);
        for (i = 0; i < val; i++) {
            ret[i] = render(i + 1, i);
        }
    }
    else if (isObject$1(val)) {
        if (hasSymbol && val[Symbol.iterator]) {
            ret = [];
            const iterator = val[Symbol.iterator]();
            let result = iterator.next();
            while (!result.done) {
                ret.push(render(result.value, ret.length));
                result = iterator.next();
            }
        }
        else {
            keys = Object.keys(val);
            ret = new Array(keys.length);
            for (i = 0, l = keys.length; i < l; i++) {
                key = keys[i];
                ret[i] = render(val[key], key, i);
            }
        }
    }
    if (!isDef(ret)) {
        ret = [];
    }
    ret._isVList = true;
    return ret;
}

/**
 * Runtime helper for rendering <slot>
 */
function renderSlot(name, fallbackRender, props, bindObject) {
    const scopedSlotFn = this.$scopedSlots[name];
    let nodes;
    if (scopedSlotFn) {
        // scoped slot
        props = props || {};
        if (bindObject) {
            if (process.env.NODE_ENV !== 'production' && !isObject$1(bindObject)) {
                warn$3('slot v-bind without argument expects an Object', this);
            }
            props = extend(extend({}, bindObject), props);
        }
        nodes =
            scopedSlotFn(props) ||
                (isFunction(fallbackRender) ? fallbackRender() : fallbackRender);
    }
    else {
        nodes =
            this.$slots[name] ||
                (isFunction(fallbackRender) ? fallbackRender() : fallbackRender);
    }
    const target = props && props.slot;
    if (target) {
        return this.$createElement('template', { slot: target }, nodes);
    }
    else {
        return nodes;
    }
}

/**
 * Runtime helper for resolving filters
 */
function resolveFilter(id) {
    return resolveAsset(this.$options, 'filters', id, true) || identity;
}

function isKeyNotMatch(expect, actual) {
    if (isArray(expect)) {
        return expect.indexOf(actual) === -1;
    }
    else {
        return expect !== actual;
    }
}
/**
 * Runtime helper for checking keyCodes from config.
 * exposed as Vue.prototype._k
 * passing in eventKeyName as last argument separately for backwards compat
 */
function checkKeyCodes(eventKeyCode, key, builtInKeyCode, eventKeyName, builtInKeyName) {
    const mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
    if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
        return isKeyNotMatch(builtInKeyName, eventKeyName);
    }
    else if (mappedKeyCode) {
        return isKeyNotMatch(mappedKeyCode, eventKeyCode);
    }
    else if (eventKeyName) {
        return hyphenate(eventKeyName) !== key;
    }
    return eventKeyCode === undefined;
}

/**
 * Runtime helper for merging v-bind="object" into a VNode's data.
 */
function bindObjectProps(data, tag, value, asProp, isSync) {
    if (value) {
        if (!isObject$1(value)) {
            process.env.NODE_ENV !== 'production' &&
                warn$3('v-bind without argument expects an Object or Array value', this);
        }
        else {
            if (isArray(value)) {
                value = toObject(value);
            }
            let hash;
            for (const key in value) {
                if (key === 'class' || key === 'style' || isReservedAttribute(key)) {
                    hash = data;
                }
                else {
                    const type = data.attrs && data.attrs.type;
                    hash =
                        asProp || config.mustUseProp(tag, type, key)
                            ? data.domProps || (data.domProps = {})
                            : data.attrs || (data.attrs = {});
                }
                const camelizedKey = camelize(key);
                const hyphenatedKey = hyphenate(key);
                if (!(camelizedKey in hash) && !(hyphenatedKey in hash)) {
                    hash[key] = value[key];
                    if (isSync) {
                        const on = data.on || (data.on = {});
                        on[`update:${key}`] = function ($event) {
                            value[key] = $event;
                        };
                    }
                }
            }
        }
    }
    return data;
}

/**
 * Runtime helper for rendering static trees.
 */
function renderStatic(index, isInFor) {
    const cached = this._staticTrees || (this._staticTrees = []);
    let tree = cached[index];
    // if has already-rendered static tree and not inside v-for,
    // we can reuse the same tree.
    if (tree && !isInFor) {
        return tree;
    }
    // otherwise, render a fresh tree.
    tree = cached[index] = this.$options.staticRenderFns[index].call(this._renderProxy, this._c, this // for render fns generated for functional component templates
    );
    markStatic$1(tree, `__static__${index}`, false);
    return tree;
}
/**
 * Runtime helper for v-once.
 * Effectively it means marking the node as static with a unique key.
 */
function markOnce(tree, index, key) {
    markStatic$1(tree, `__once__${index}${key ? `_${key}` : ``}`, true);
    return tree;
}
function markStatic$1(tree, key, isOnce) {
    if (isArray(tree)) {
        for (let i = 0; i < tree.length; i++) {
            if (tree[i] && typeof tree[i] !== 'string') {
                markStaticNode(tree[i], `${key}_${i}`, isOnce);
            }
        }
    }
    else {
        markStaticNode(tree, key, isOnce);
    }
}
function markStaticNode(node, key, isOnce) {
    node.isStatic = true;
    node.key = key;
    node.isOnce = isOnce;
}

function bindObjectListeners(data, value) {
    if (value) {
        if (!isPlainObject(value)) {
            process.env.NODE_ENV !== 'production' && warn$3('v-on without argument expects an Object value', this);
        }
        else {
            const on = (data.on = data.on ? extend({}, data.on) : {});
            for (const key in value) {
                const existing = on[key];
                const ours = value[key];
                on[key] = existing ? [].concat(existing, ours) : ours;
            }
        }
    }
    return data;
}

function resolveScopedSlots(fns, res, 
// the following are added in 2.6
hasDynamicKeys, contentHashKey) {
    res = res || { $stable: !hasDynamicKeys };
    for (let i = 0; i < fns.length; i++) {
        const slot = fns[i];
        if (isArray(slot)) {
            resolveScopedSlots(slot, res, hasDynamicKeys);
        }
        else if (slot) {
            // marker for reverse proxying v-slot without scope on this.$slots
            // @ts-expect-error
            if (slot.proxy) {
                // @ts-expect-error
                slot.fn.proxy = true;
            }
            res[slot.key] = slot.fn;
        }
    }
    if (contentHashKey) {
        res.$key = contentHashKey;
    }
    return res;
}

// helper to process dynamic keys for dynamic arguments in v-bind and v-on.
function bindDynamicKeys(baseObj, values) {
    for (let i = 0; i < values.length; i += 2) {
        const key = values[i];
        if (typeof key === 'string' && key) {
            baseObj[values[i]] = values[i + 1];
        }
        else if (process.env.NODE_ENV !== 'production' && key !== '' && key !== null) {
            // null is a special value for explicitly removing a binding
            warn$3(`Invalid value for dynamic directive argument (expected string or null): ${key}`, this);
        }
    }
    return baseObj;
}
// helper to dynamically append modifier runtime markers to event names.
// ensure only append when value is already string, otherwise it will be cast
// to string and cause the type check to miss.
function prependModifier(value, symbol) {
    return typeof value === 'string' ? symbol + value : value;
}

function installRenderHelpers(target) {
    target._o = markOnce;
    target._n = toNumber;
    target._s = toString$2;
    target._l = renderList;
    target._t = renderSlot;
    target._q = looseEqual;
    target._i = looseIndexOf;
    target._m = renderStatic;
    target._f = resolveFilter;
    target._k = checkKeyCodes;
    target._b = bindObjectProps;
    target._v = createTextVNode;
    target._e = createEmptyVNode;
    target._u = resolveScopedSlots;
    target._g = bindObjectListeners;
    target._d = bindDynamicKeys;
    target._p = prependModifier;
}

/**
 * Runtime helper for resolving raw children VNodes into a slot object.
 */
function resolveSlots(children, context) {
    if (!children || !children.length) {
        return {};
    }
    const slots = {};
    for (let i = 0, l = children.length; i < l; i++) {
        const child = children[i];
        const data = child.data;
        // remove slot attribute if the node is resolved as a Vue slot node
        if (data && data.attrs && data.attrs.slot) {
            delete data.attrs.slot;
        }
        // named slots should only be respected if the vnode was rendered in the
        // same context.
        if ((child.context === context || child.fnContext === context) &&
            data &&
            data.slot != null) {
            const name = data.slot;
            const slot = slots[name] || (slots[name] = []);
            if (child.tag === 'template') {
                slot.push.apply(slot, child.children || []);
            }
            else {
                slot.push(child);
            }
        }
        else {
            (slots.default || (slots.default = [])).push(child);
        }
    }
    // ignore slots that contains only whitespace
    for (const name in slots) {
        if (slots[name].every(isWhitespace)) {
            delete slots[name];
        }
    }
    return slots;
}
function isWhitespace(node) {
    return (node.isComment && !node.asyncFactory) || node.text === ' ';
}

function isAsyncPlaceholder(node) {
    // @ts-expect-error not really boolean type
    return node.isComment && node.asyncFactory;
}

function normalizeScopedSlots(ownerVm, scopedSlots, normalSlots, prevScopedSlots) {
    let res;
    const hasNormalSlots = Object.keys(normalSlots).length > 0;
    const isStable = scopedSlots ? !!scopedSlots.$stable : !hasNormalSlots;
    const key = scopedSlots && scopedSlots.$key;
    if (!scopedSlots) {
        res = {};
    }
    else if (scopedSlots._normalized) {
        // fast path 1: child component re-render only, parent did not change
        return scopedSlots._normalized;
    }
    else if (isStable &&
        prevScopedSlots &&
        prevScopedSlots !== emptyObject &&
        key === prevScopedSlots.$key &&
        !hasNormalSlots &&
        !prevScopedSlots.$hasNormal) {
        // fast path 2: stable scoped slots w/ no normal slots to proxy,
        // only need to normalize once
        return prevScopedSlots;
    }
    else {
        res = {};
        for (const key in scopedSlots) {
            if (scopedSlots[key] && key[0] !== '$') {
                res[key] = normalizeScopedSlot(ownerVm, normalSlots, key, scopedSlots[key]);
            }
        }
    }
    // expose normal slots on scopedSlots
    for (const key in normalSlots) {
        if (!(key in res)) {
            res[key] = proxyNormalSlot(normalSlots, key);
        }
    }
    // avoriaz seems to mock a non-extensible $scopedSlots object
    // and when that is passed down this would cause an error
    if (scopedSlots && Object.isExtensible(scopedSlots)) {
        scopedSlots._normalized = res;
    }
    def(res, '$stable', isStable);
    def(res, '$key', key);
    def(res, '$hasNormal', hasNormalSlots);
    return res;
}
function normalizeScopedSlot(vm, normalSlots, key, fn) {
    const normalized = function () {
        const cur = currentInstance;
        setCurrentInstance(vm);
        let res = arguments.length ? fn.apply(null, arguments) : fn({});
        res =
            res && typeof res === 'object' && !isArray(res)
                ? [res] // single vnode
                : normalizeChildren(res);
        const vnode = res && res[0];
        setCurrentInstance(cur);
        return res &&
            (!vnode ||
                (res.length === 1 && vnode.isComment && !isAsyncPlaceholder(vnode))) // #9658, #10391
            ? undefined
            : res;
    };
    // this is a slot using the new v-slot syntax without scope. although it is
    // compiled as a scoped slot, render fn users would expect it to be present
    // on this.$slots because the usage is semantically a normal slot.
    if (fn.proxy) {
        Object.defineProperty(normalSlots, key, {
            get: normalized,
            enumerable: true,
            configurable: true
        });
    }
    return normalized;
}
function proxyNormalSlot(slots, key) {
    return () => slots[key];
}

function syncSetupProxy(to, from, prev, instance, type) {
    let changed = false;
    for (const key in from) {
        if (!(key in to)) {
            changed = true;
            defineProxyAttr(to, key, instance, type);
        }
        else if (from[key] !== prev[key]) {
            changed = true;
        }
    }
    for (const key in to) {
        if (!(key in from)) {
            changed = true;
            delete to[key];
        }
    }
    return changed;
}
function defineProxyAttr(proxy, key, instance, type) {
    Object.defineProperty(proxy, key, {
        enumerable: true,
        configurable: true,
        get() {
            return instance[type][key];
        }
    });
}

function createAsyncPlaceholder(factory, data, context, children, tag) {
    const node = createEmptyVNode();
    node.asyncFactory = factory;
    node.asyncMeta = { data, context, children, tag };
    return node;
}
function resolveAsyncComponent(factory, baseCtor) {
    if (isTrue(factory.error) && isDef(factory.errorComp)) {
        return factory.errorComp;
    }
    if (isDef(factory.resolved)) {
        return factory.resolved;
    }
    if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
        return factory.loadingComp;
    }
}

let target;
function add(event, fn) {
    target.$on(event, fn);
}
function remove(event, fn) {
    target.$off(event, fn);
}
function createOnceHandler(event, fn) {
    const _target = target;
    return function onceHandler() {
        const res = fn.apply(null, arguments);
        if (res !== null) {
            _target.$off(event, onceHandler);
        }
    };
}
function updateComponentListeners(vm, listeners, oldListeners) {
    target = vm;
    updateListeners(listeners, oldListeners || {}, add, remove, createOnceHandler, vm);
    target = undefined;
}

let activeInstance = null;
function updateChildComponent(vm, propsData, listeners, parentVnode, renderChildren) {
    if (process.env.NODE_ENV !== 'production') ;
    // determine whether component has slot children
    // we need to do this before overwriting $options._renderChildren.
    // check if there are dynamic scopedSlots (hand-written or compiled but with
    // dynamic slot names). Static scoped slots compiled from template has the
    // "$stable" marker.
    const newScopedSlots = parentVnode.data.scopedSlots;
    const oldScopedSlots = vm.$scopedSlots;
    const hasDynamicScopedSlot = !!((newScopedSlots && !newScopedSlots.$stable) ||
        (oldScopedSlots !== emptyObject && !oldScopedSlots.$stable) ||
        (newScopedSlots && vm.$scopedSlots.$key !== newScopedSlots.$key) ||
        (!newScopedSlots && vm.$scopedSlots.$key));
    // Any static slot children from the parent may have changed during parent's
    // update. Dynamic scoped slots may also have changed. In such cases, a forced
    // update is necessary to ensure correctness.
    let needsForceUpdate = !!(renderChildren || // has new static slots
        vm.$options._renderChildren || // has old static slots
        hasDynamicScopedSlot);
    const prevVNode = vm.$vnode;
    vm.$options._parentVnode = parentVnode;
    vm.$vnode = parentVnode; // update vm's placeholder node without re-render
    if (vm._vnode) {
        // update child tree's parent
        vm._vnode.parent = parentVnode;
    }
    vm.$options._renderChildren = renderChildren;
    // update $attrs and $listeners hash
    // these are also reactive so they may trigger child update if the child
    // used them during render
    const attrs = parentVnode.data.attrs || emptyObject;
    if (vm._attrsProxy) {
        // force update if attrs are accessed and has changed since it may be
        // passed to a child component.
        if (syncSetupProxy(vm._attrsProxy, attrs, (prevVNode.data && prevVNode.data.attrs) || emptyObject, vm, '$attrs')) {
            needsForceUpdate = true;
        }
    }
    vm.$attrs = attrs;
    // update listeners
    listeners = listeners || emptyObject;
    const prevListeners = vm.$options._parentListeners;
    if (vm._listenersProxy) {
        syncSetupProxy(vm._listenersProxy, listeners, prevListeners || emptyObject, vm, '$listeners');
    }
    vm.$listeners = vm.$options._parentListeners = listeners;
    updateComponentListeners(vm, listeners, prevListeners);
    // update props
    if (propsData && vm.$options.props) {
        toggleObserving(false);
        const props = vm._props;
        const propKeys = vm.$options._propKeys || [];
        for (let i = 0; i < propKeys.length; i++) {
            const key = propKeys[i];
            const propOptions = vm.$options.props; // wtf flow?
            props[key] = validateProp(key, propOptions, propsData, vm);
        }
        toggleObserving(true);
        // keep a copy of raw propsData
        vm.$options.propsData = propsData;
    }
    // resolve slots + force update if has children
    if (needsForceUpdate) {
        vm.$slots = resolveSlots(renderChildren, parentVnode.context);
        vm.$forceUpdate();
    }
    if (process.env.NODE_ENV !== 'production') ;
}
function isInInactiveTree(vm) {
    while (vm && (vm = vm.$parent)) {
        if (vm._inactive)
            return true;
    }
    return false;
}
function activateChildComponent(vm, direct) {
    if (direct) {
        vm._directInactive = false;
        if (isInInactiveTree(vm)) {
            return;
        }
    }
    else if (vm._directInactive) {
        return;
    }
    if (vm._inactive || vm._inactive === null) {
        vm._inactive = false;
        for (let i = 0; i < vm.$children.length; i++) {
            activateChildComponent(vm.$children[i]);
        }
        callHook(vm, 'activated');
    }
}
function deactivateChildComponent(vm, direct) {
    if (direct) {
        vm._directInactive = true;
        if (isInInactiveTree(vm)) {
            return;
        }
    }
    if (!vm._inactive) {
        vm._inactive = true;
        for (let i = 0; i < vm.$children.length; i++) {
            deactivateChildComponent(vm.$children[i]);
        }
        callHook(vm, 'deactivated');
    }
}
function callHook(vm, hook, args, setContext = true) {
    // #7573 disable dep collection when invoking lifecycle hooks
    pushTarget();
    const prevInst = currentInstance;
    setContext && setCurrentInstance(vm);
    const handlers = vm.$options[hook];
    const info = `${hook} hook`;
    if (handlers) {
        for (let i = 0, j = handlers.length; i < j; i++) {
            invokeWithErrorHandling(handlers[i], vm, args || null, vm, info);
        }
    }
    if (vm._hasHookEvent) {
        vm.$emit('hook:' + hook);
    }
    if (setContext) {
        setCurrentInstance(prevInst);
    }
    popTarget();
}

// Async edge case fix requires storing an event listener's attach timestamp.
let getNow = Date.now;
// Determine what event timestamp the browser is using. Annoyingly, the
// timestamp can either be hi-res (relative to page load) or low-res
// (relative to UNIX epoch), so in order to compare time we have to use the
// same timestamp type when saving the flush timestamp.
// All IE versions use low-res event timestamps, and have problematic clock
// implementations (#9632)
if (inBrowser && !isIE) {
    const performance = window.performance;
    if (performance &&
        typeof performance.now === 'function' &&
        getNow() > document.createEvent('Event').timeStamp) {
        // if the event timestamp, although evaluated AFTER the Date.now(), is
        // smaller than it, it means the event is using a hi-res timestamp,
        // and we need to use the hi-res version for event listener timestamps as
        // well.
        getNow = () => performance.now();
    }
}
/**
 * Queue a kept-alive component that was activated during patch.
 * The queue will be processed after the entire tree has been patched.
 */
function queueActivatedComponent(vm) {
    // setting _inactive to false here so that a render function can
    // rely on checking whether it's in an inactive tree (e.g. router-view)
    vm._inactive = false;
}

function handleError(err, vm, info) {
    // Deactivate deps tracking while processing error handler to avoid possible infinite rendering.
    // See: https://github.com/vuejs/vuex/issues/1505
    pushTarget();
    try {
        if (vm) {
            let cur = vm;
            while ((cur = cur.$parent)) {
                const hooks = cur.$options.errorCaptured;
                if (hooks) {
                    for (let i = 0; i < hooks.length; i++) {
                        try {
                            const capture = hooks[i].call(cur, err, vm, info) === false;
                            if (capture)
                                return;
                        }
                        catch (e) {
                            globalHandleError(e, cur, 'errorCaptured hook');
                        }
                    }
                }
            }
        }
        globalHandleError(err, vm, info);
    }
    finally {
        popTarget();
    }
}
function invokeWithErrorHandling(handler, context, args, vm, info) {
    let res;
    try {
        res = args ? handler.apply(context, args) : handler.call(context);
        if (res && !res._isVue && isPromise(res) && !res._handled) {
            res.catch(e => handleError(e, vm, info + ` (Promise/async)`));
            res._handled = true;
        }
    }
    catch (e) {
        handleError(e, vm, info);
    }
    return res;
}
function globalHandleError(err, vm, info) {
    logError(err, vm, info);
}
function logError(err, vm, info) {
    if (process.env.NODE_ENV !== 'production') {
        warn$3(`Error in ${info}: "${err.toString()}"`, vm);
    }
    /* istanbul ignore else */
    if (inBrowser && typeof console !== 'undefined') {
        console.error(err);
    }
    else {
        throw err;
    }
}

/* globals MutationObserver */
const callbacks = [];
function flushCallbacks() {
    const copies = callbacks.slice(0);
    callbacks.length = 0;
    for (let i = 0; i < copies.length; i++) {
        copies[i]();
    }
}
// The nextTick behavior leverages the microtask queue, which can be accessed
// via either native Promise.then or MutationObserver.
// MutationObserver has wider support, however it is seriously bugged in
// UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It
// completely stops working after triggering a few times... so, if native
// Promise is available, we will use it:
/* istanbul ignore next, $flow-disable-line */
if (typeof Promise !== 'undefined' && isNative(Promise)) {
    Promise.resolve();
}
else if (!isIE &&
    typeof MutationObserver !== 'undefined' &&
    (isNative(MutationObserver) ||
        // PhantomJS and iOS 7.x
        MutationObserver.toString() === '[object MutationObserverConstructor]')) {
    // Use MutationObserver where native Promise is not available,
    // e.g. PhantomJS, iOS7, Android 4.4
    // (#6466 MutationObserver is unreliable in IE11)
    let counter = 1;
    const observer = new MutationObserver(flushCallbacks);
    const textNode = document.createTextNode(String(counter));
    observer.observe(textNode, {
        characterData: true
    });
}
else if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) ;
else ;

const seenObjects = new _Set();
/**
 * Recursively traverse an object to evoke all converted
 * getters, so that every nested property inside the object
 * is collected as a "deep" dependency.
 */
function traverse(val) {
    _traverse(val, seenObjects);
    seenObjects.clear();
    return val;
}
function _traverse(val, seen) {
    let i, keys;
    const isA = isArray(val);
    if ((!isA && !isObject$1(val)) ||
        val.__v_skip /* ReactiveFlags.SKIP */ ||
        Object.isFrozen(val) ||
        val instanceof VNode) {
        return;
    }
    if (val.__ob__) {
        const depId = val.__ob__.dep.id;
        if (seen.has(depId)) {
            return;
        }
        seen.add(depId);
    }
    if (isA) {
        i = val.length;
        while (i--)
            _traverse(val[i], seen);
    }
    else if (isRef(val)) {
        _traverse(val.value, seen);
    }
    else {
        keys = Object.keys(val);
        i = keys.length;
        while (i--)
            _traverse(val[keys[i]], seen);
    }
}

function resolveInject(inject, vm) {
    if (inject) {
        // inject is :any because flow is not smart enough to figure out cached
        const result = Object.create(null);
        const keys = hasSymbol ? Reflect.ownKeys(inject) : Object.keys(inject);
        for (let i = 0; i < keys.length; i++) {
            const key = keys[i];
            // #6574 in case the inject object is observed...
            if (key === '__ob__')
                continue;
            const provideKey = inject[key].from;
            if (provideKey in vm._provided) {
                result[key] = vm._provided[provideKey];
            }
            else if ('default' in inject[key]) {
                const provideDefault = inject[key].default;
                result[key] = isFunction(provideDefault)
                    ? provideDefault.call(vm)
                    : provideDefault;
            }
            else if (process.env.NODE_ENV !== 'production') {
                warn$3(`Injection "${key}" not found`, vm);
            }
        }
        return result;
    }
}

function resolveConstructorOptions(Ctor) {
    let options = Ctor.options;
    if (Ctor.super) {
        const superOptions = resolveConstructorOptions(Ctor.super);
        const cachedSuperOptions = Ctor.superOptions;
        if (superOptions !== cachedSuperOptions) {
            // super option changed,
            // need to resolve new options.
            Ctor.superOptions = superOptions;
            // check if there are any late-modified/attached options (#4976)
            const modifiedOptions = resolveModifiedOptions(Ctor);
            // update base extend options
            if (modifiedOptions) {
                extend(Ctor.extendOptions, modifiedOptions);
            }
            options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions);
            if (options.name) {
                options.components[options.name] = Ctor;
            }
        }
    }
    return options;
}
function resolveModifiedOptions(Ctor) {
    let modified;
    const latest = Ctor.options;
    const sealed = Ctor.sealedOptions;
    for (const key in latest) {
        if (latest[key] !== sealed[key]) {
            if (!modified)
                modified = {};
            modified[key] = latest[key];
        }
    }
    return modified;
}

function FunctionalRenderContext(data, props, children, parent, Ctor) {
    const options = Ctor.options;
    // ensure the createElement function in functional components
    // gets a unique context - this is necessary for correct named slot check
    let contextVm;
    if (hasOwn(parent, '_uid')) {
        contextVm = Object.create(parent);
        contextVm._original = parent;
    }
    else {
        // the context vm passed in is a functional context as well.
        // in this case we want to make sure we are able to get a hold to the
        // real context instance.
        contextVm = parent;
        // @ts-ignore
        parent = parent._original;
    }
    const isCompiled = isTrue(options._compiled);
    const needNormalization = !isCompiled;
    this.data = data;
    this.props = props;
    this.children = children;
    this.parent = parent;
    this.listeners = data.on || emptyObject;
    this.injections = resolveInject(options.inject, parent);
    this.slots = () => {
        if (!this.$slots) {
            normalizeScopedSlots(parent, data.scopedSlots, (this.$slots = resolveSlots(children, parent)));
        }
        return this.$slots;
    };
    Object.defineProperty(this, 'scopedSlots', {
        enumerable: true,
        get() {
            return normalizeScopedSlots(parent, data.scopedSlots, this.slots());
        }
    });
    // support for compiled functional template
    if (isCompiled) {
        // exposing $options for renderStatic()
        this.$options = options;
        // pre-resolve slots for renderSlot()
        this.$slots = this.slots();
        this.$scopedSlots = normalizeScopedSlots(parent, data.scopedSlots, this.$slots);
    }
    if (options._scopeId) {
        this._c = (a, b, c, d) => {
            const vnode = createElement(contextVm, a, b, c, d, needNormalization);
            if (vnode && !isArray(vnode)) {
                vnode.fnScopeId = options._scopeId;
                vnode.fnContext = parent;
            }
            return vnode;
        };
    }
    else {
        this._c = (a, b, c, d) => createElement(contextVm, a, b, c, d, needNormalization);
    }
}
installRenderHelpers(FunctionalRenderContext.prototype);
function createFunctionalComponent(Ctor, propsData, data, contextVm, children) {
    const options = Ctor.options;
    const props = {};
    const propOptions = options.props;
    if (isDef(propOptions)) {
        for (const key in propOptions) {
            props[key] = validateProp(key, propOptions, propsData || emptyObject);
        }
    }
    else {
        if (isDef(data.attrs))
            mergeProps(props, data.attrs);
        if (isDef(data.props))
            mergeProps(props, data.props);
    }
    const renderContext = new FunctionalRenderContext(data, props, children, contextVm, Ctor);
    const vnode = options.render.call(null, renderContext._c, renderContext);
    if (vnode instanceof VNode) {
        return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext);
    }
    else if (isArray(vnode)) {
        const vnodes = normalizeChildren(vnode) || [];
        const res = new Array(vnodes.length);
        for (let i = 0; i < vnodes.length; i++) {
            res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
        }
        return res;
    }
}
function cloneAndMarkFunctionalResult(vnode, data, contextVm, options, renderContext) {
    // #7817 clone node before setting fnContext, otherwise if the node is reused
    // (e.g. it was from a cached normal slot) the fnContext causes named slots
    // that should not be matched to match.
    const clone = cloneVNode(vnode);
    clone.fnContext = contextVm;
    clone.fnOptions = options;
    if (process.env.NODE_ENV !== 'production') {
        (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext =
            renderContext;
    }
    if (data.slot) {
        (clone.data || (clone.data = {})).slot = data.slot;
    }
    return clone;
}
function mergeProps(to, from) {
    for (const key in from) {
        to[camelize(key)] = from[key];
    }
}

function getComponentName(options) {
    return options.name || options.__name || options._componentTag;
}
// inline hooks to be invoked on component VNodes during patch
const componentVNodeHooks = {
    init(vnode, hydrating) {
        if (vnode.componentInstance &&
            !vnode.componentInstance._isDestroyed &&
            vnode.data.keepAlive) {
            // kept-alive components, treat as a patch
            const mountedNode = vnode; // work around flow
            componentVNodeHooks.prepatch(mountedNode, mountedNode);
        }
        else {
            const child = (vnode.componentInstance = createComponentInstanceForVnode(vnode, activeInstance));
            child.$mount(hydrating ? vnode.elm : undefined, hydrating);
        }
    },
    prepatch(oldVnode, vnode) {
        const options = vnode.componentOptions;
        const child = (vnode.componentInstance = oldVnode.componentInstance);
        updateChildComponent(child, options.propsData, // updated props
        options.listeners, // updated listeners
        vnode, // new parent vnode
        options.children // new children
        );
    },
    insert(vnode) {
        const { context, componentInstance } = vnode;
        if (!componentInstance._isMounted) {
            componentInstance._isMounted = true;
            callHook(componentInstance, 'mounted');
        }
        if (vnode.data.keepAlive) {
            if (context._isMounted) {
                // vue-router#1212
                // During updates, a kept-alive component's child components may
                // change, so directly walking the tree here may call activated hooks
                // on incorrect children. Instead we push them into a queue which will
                // be processed after the whole patch process ended.
                queueActivatedComponent(componentInstance);
            }
            else {
                activateChildComponent(componentInstance, true /* direct */);
            }
        }
    },
    destroy(vnode) {
        const { componentInstance } = vnode;
        if (!componentInstance._isDestroyed) {
            if (!vnode.data.keepAlive) {
                componentInstance.$destroy();
            }
            else {
                deactivateChildComponent(componentInstance, true /* direct */);
            }
        }
    }
};
const hooksToMerge = Object.keys(componentVNodeHooks);
function createComponent(Ctor, data, context, children, tag) {
    if (isUndef(Ctor)) {
        return;
    }
    const baseCtor = context.$options._base;
    // plain options object: turn it into a constructor
    if (isObject$1(Ctor)) {
        Ctor = baseCtor.extend(Ctor);
    }
    // if at this stage it's not a constructor or an async component factory,
    // reject.
    if (typeof Ctor !== 'function') {
        if (process.env.NODE_ENV !== 'production') {
            warn$3(`Invalid Component definition: ${String(Ctor)}`, context);
        }
        return;
    }
    // async component
    let asyncFactory;
    // @ts-expect-error
    if (isUndef(Ctor.cid)) {
        asyncFactory = Ctor;
        Ctor = resolveAsyncComponent(asyncFactory);
        if (Ctor === undefined) {
            // return a placeholder node for async component, which is rendered
            // as a comment node but preserves all the raw information for the node.
            // the information will be used for async server-rendering and hydration.
            return createAsyncPlaceholder(asyncFactory, data, context, children, tag);
        }
    }
    data = data || {};
    // resolve constructor options in case global mixins are applied after
    // component constructor creation
    resolveConstructorOptions(Ctor);
    // transform component v-model data into props & events
    if (isDef(data.model)) {
        // @ts-expect-error
        transformModel(Ctor.options, data);
    }
    // extract props
    // @ts-expect-error
    const propsData = extractPropsFromVNodeData(data, Ctor, tag);
    // functional component
    // @ts-expect-error
    if (isTrue(Ctor.options.functional)) {
        return createFunctionalComponent(Ctor, propsData, data, context, children);
    }
    // extract listeners, since these needs to be treated as
    // child component listeners instead of DOM listeners
    const listeners = data.on;
    // replace with listeners with .native modifier
    // so it gets processed during parent component patch.
    data.on = data.nativeOn;
    // @ts-expect-error
    if (isTrue(Ctor.options.abstract)) {
        // abstract components do not keep anything
        // other than props & listeners & slot
        // work around flow
        const slot = data.slot;
        data = {};
        if (slot) {
            data.slot = slot;
        }
    }
    // install component management hooks onto the placeholder node
    installComponentHooks(data);
    // return a placeholder vnode
    // @ts-expect-error
    const name = getComponentName(Ctor.options) || tag;
    const vnode = new VNode(
    // @ts-expect-error
    `vue-component-${Ctor.cid}${name ? `-${name}` : ''}`, data, undefined, undefined, undefined, context, 
    // @ts-expect-error
    { Ctor, propsData, listeners, tag, children }, asyncFactory);
    return vnode;
}
function createComponentInstanceForVnode(
// we know it's MountedComponentVNode but flow doesn't
vnode, 
// activeInstance in lifecycle state
parent) {
    const options = {
        _isComponent: true,
        _parentVnode: vnode,
        parent
    };
    // check inline-template render functions
    const inlineTemplate = vnode.data.inlineTemplate;
    if (isDef(inlineTemplate)) {
        options.render = inlineTemplate.render;
        options.staticRenderFns = inlineTemplate.staticRenderFns;
    }
    return new vnode.componentOptions.Ctor(options);
}
function installComponentHooks(data) {
    const hooks = data.hook || (data.hook = {});
    for (let i = 0; i < hooksToMerge.length; i++) {
        const key = hooksToMerge[i];
        const existing = hooks[key];
        const toMerge = componentVNodeHooks[key];
        // @ts-expect-error
        if (existing !== toMerge && !(existing && existing._merged)) {
            hooks[key] = existing ? mergeHook(toMerge, existing) : toMerge;
        }
    }
}
function mergeHook(f1, f2) {
    const merged = (a, b) => {
        // flow complains about extra args which is why we use any
        f1(a, b);
        f2(a, b);
    };
    merged._merged = true;
    return merged;
}
// transform component v-model info (value and callback) into
// prop and event handler respectively.
function transformModel(options, data) {
    const prop = (options.model && options.model.prop) || 'value';
    const event = (options.model && options.model.event) || 'input';
    (data.attrs || (data.attrs = {}))[prop] = data.model.value;
    const on = data.on || (data.on = {});
    const existing = on[event];
    const callback = data.model.callback;
    if (isDef(existing)) {
        if (isArray(existing)
            ? existing.indexOf(callback) === -1
            : existing !== callback) {
            on[event] = [callback].concat(existing);
        }
    }
    else {
        on[event] = callback;
    }
}

let warn$3 = noop;
let tip = noop;
let generateComponentTrace; // work around flow check
let formatComponentName;
if (process.env.NODE_ENV !== 'production') {
    const hasConsole = typeof console !== 'undefined';
    const classifyRE = /(?:^|[-_])(\w)/g;
    const classify = str => str.replace(classifyRE, c => c.toUpperCase()).replace(/[-_]/g, '');
    warn$3 = (msg, vm = currentInstance) => {
        const trace = vm ? generateComponentTrace(vm) : '';
        if (hasConsole && !config.silent) {
            console.error(`[Vue warn]: ${msg}${trace}`);
        }
    };
    tip = (msg, vm) => {
        if (hasConsole && !config.silent) {
            console.warn(`[Vue tip]: ${msg}` + (vm ? generateComponentTrace(vm) : ''));
        }
    };
    formatComponentName = (vm, includeFile) => {
        if (vm.$root === vm) {
            return '<Root>';
        }
        const options = isFunction(vm) && vm.cid != null
            ? vm.options
            : vm._isVue
                ? vm.$options || vm.constructor.options
                : vm;
        let name = getComponentName(options);
        const file = options.__file;
        if (!name && file) {
            const match = file.match(/([^/\\]+)\.vue$/);
            name = match && match[1];
        }
        return ((name ? `<${classify(name)}>` : `<Anonymous>`) +
            (file && includeFile !== false ? ` at ${file}` : ''));
    };
    const repeat = (str, n) => {
        let res = '';
        while (n) {
            if (n % 2 === 1)
                res += str;
            if (n > 1)
                str += str;
            n >>= 1;
        }
        return res;
    };
    generateComponentTrace = (vm) => {
        if (vm._isVue && vm.$parent) {
            const tree = [];
            let currentRecursiveSequence = 0;
            while (vm) {
                if (tree.length > 0) {
                    const last = tree[tree.length - 1];
                    if (last.constructor === vm.constructor) {
                        currentRecursiveSequence++;
                        vm = vm.$parent;
                        continue;
                    }
                    else if (currentRecursiveSequence > 0) {
                        tree[tree.length - 1] = [last, currentRecursiveSequence];
                        currentRecursiveSequence = 0;
                    }
                }
                tree.push(vm);
                vm = vm.$parent;
            }
            return ('\n\nfound in\n\n' +
                tree
                    .map((vm, i) => `${i === 0 ? '---> ' : repeat(' ', 5 + i * 2)}${isArray(vm)
                    ? `${formatComponentName(vm[0])}... (${vm[1]} recursive calls)`
                    : formatComponentName(vm)}`)
                    .join('\n'));
        }
        else {
            return `\n\n(found in ${formatComponentName(vm)})`;
        }
    };
}

/**
 * Option overwriting strategies are functions that handle
 * how to merge a parent option value and a child option
 * value into the final value.
 */
const strats = config.optionMergeStrategies;
/**
 * Options with restrictions
 */
if (process.env.NODE_ENV !== 'production') {
    strats.el = strats.propsData = function (parent, child, vm, key) {
        if (!vm) {
            warn$3(`option "${key}" can only be used during instance ` +
                'creation with the `new` keyword.');
        }
        return defaultStrat(parent, child);
    };
}
/**
 * Helper that recursively merges two data objects together.
 */
function mergeData(to, from, recursive = true) {
    if (!from)
        return to;
    let key, toVal, fromVal;
    const keys = hasSymbol
        ? Reflect.ownKeys(from)
        : Object.keys(from);
    for (let i = 0; i < keys.length; i++) {
        key = keys[i];
        // in case the object is already observed...
        if (key === '__ob__')
            continue;
        toVal = to[key];
        fromVal = from[key];
        if (!recursive || !hasOwn(to, key)) {
            set(to, key, fromVal);
        }
        else if (toVal !== fromVal &&
            isPlainObject(toVal) &&
            isPlainObject(fromVal)) {
            mergeData(toVal, fromVal);
        }
    }
    return to;
}
/**
 * Data
 */
function mergeDataOrFn(parentVal, childVal, vm) {
    if (!vm) {
        // in a Vue.extend merge, both should be functions
        if (!childVal) {
            return parentVal;
        }
        if (!parentVal) {
            return childVal;
        }
        // when parentVal & childVal are both present,
        // we need to return a function that returns the
        // merged result of both functions... no need to
        // check if parentVal is a function here because
        // it has to be a function to pass previous merges.
        return function mergedDataFn() {
            return mergeData(isFunction(childVal) ? childVal.call(this, this) : childVal, isFunction(parentVal) ? parentVal.call(this, this) : parentVal);
        };
    }
    else {
        return function mergedInstanceDataFn() {
            // instance merge
            const instanceData = isFunction(childVal)
                ? childVal.call(vm, vm)
                : childVal;
            const defaultData = isFunction(parentVal)
                ? parentVal.call(vm, vm)
                : parentVal;
            if (instanceData) {
                return mergeData(instanceData, defaultData);
            }
            else {
                return defaultData;
            }
        };
    }
}
strats.data = function (parentVal, childVal, vm) {
    if (!vm) {
        if (childVal && typeof childVal !== 'function') {
            process.env.NODE_ENV !== 'production' &&
                warn$3('The "data" option should be a function ' +
                    'that returns a per-instance value in component ' +
                    'definitions.', vm);
            return parentVal;
        }
        return mergeDataOrFn(parentVal, childVal);
    }
    return mergeDataOrFn(parentVal, childVal, vm);
};
/**
 * Hooks and props are merged as arrays.
 */
function mergeLifecycleHook(parentVal, childVal) {
    const res = childVal
        ? parentVal
            ? parentVal.concat(childVal)
            : isArray(childVal)
                ? childVal
                : [childVal]
        : parentVal;
    return res ? dedupeHooks(res) : res;
}
function dedupeHooks(hooks) {
    const res = [];
    for (let i = 0; i < hooks.length; i++) {
        if (res.indexOf(hooks[i]) === -1) {
            res.push(hooks[i]);
        }
    }
    return res;
}
LIFECYCLE_HOOKS.forEach(hook => {
    strats[hook] = mergeLifecycleHook;
});
/**
 * Assets
 *
 * When a vm is present (instance creation), we need to do
 * a three-way merge between constructor options, instance
 * options and parent options.
 */
function mergeAssets(parentVal, childVal, vm, key) {
    const res = Object.create(parentVal || null);
    if (childVal) {
        process.env.NODE_ENV !== 'production' && assertObjectType(key, childVal, vm);
        return extend(res, childVal);
    }
    else {
        return res;
    }
}
ASSET_TYPES.forEach(function (type) {
    strats[type + 's'] = mergeAssets;
});
/**
 * Watchers.
 *
 * Watchers hashes should not overwrite one
 * another, so we merge them as arrays.
 */
strats.watch = function (parentVal, childVal, vm, key) {
    // work around Firefox's Object.prototype.watch...
    //@ts-expect-error work around
    if (parentVal === nativeWatch)
        parentVal = undefined;
    //@ts-expect-error work around
    if (childVal === nativeWatch)
        childVal = undefined;
    /* istanbul ignore if */
    if (!childVal)
        return Object.create(parentVal || null);
    if (process.env.NODE_ENV !== 'production') {
        assertObjectType(key, childVal, vm);
    }
    if (!parentVal)
        return childVal;
    const ret = {};
    extend(ret, parentVal);
    for (const key in childVal) {
        let parent = ret[key];
        const child = childVal[key];
        if (parent && !isArray(parent)) {
            parent = [parent];
        }
        ret[key] = parent ? parent.concat(child) : isArray(child) ? child : [child];
    }
    return ret;
};
/**
 * Other object hashes.
 */
strats.props =
    strats.methods =
        strats.inject =
            strats.computed =
                function (parentVal, childVal, vm, key) {
                    if (childVal && process.env.NODE_ENV !== 'production') {
                        assertObjectType(key, childVal, vm);
                    }
                    if (!parentVal)
                        return childVal;
                    const ret = Object.create(null);
                    extend(ret, parentVal);
                    if (childVal)
                        extend(ret, childVal);
                    return ret;
                };
strats.provide = function (parentVal, childVal) {
    if (!parentVal)
        return childVal;
    return function () {
        const ret = Object.create(null);
        mergeData(ret, isFunction(parentVal) ? parentVal.call(this) : parentVal);
        if (childVal) {
            mergeData(ret, isFunction(childVal) ? childVal.call(this) : childVal, false // non-recursive
            );
        }
        return ret;
    };
};
/**
 * Default strategy.
 */
const defaultStrat = function (parentVal, childVal) {
    return childVal === undefined ? parentVal : childVal;
};
/**
 * Validate component names
 */
function checkComponents(options) {
    for (const key in options.components) {
        validateComponentName(key);
    }
}
function validateComponentName(name) {
    if (!new RegExp(`^[a-zA-Z][\\-\\.0-9_${unicodeRegExp.source}]*$`).test(name)) {
        warn$3('Invalid component name: "' +
            name +
            '". Component names ' +
            'should conform to valid custom element name in html5 specification.');
    }
    if (isBuiltInTag(name) || config.isReservedTag(name)) {
        warn$3('Do not use built-in or reserved HTML elements as component ' +
            'id: ' +
            name);
    }
}
/**
 * Ensure all props option syntax are normalized into the
 * Object-based format.
 */
function normalizeProps(options, vm) {
    const props = options.props;
    if (!props)
        return;
    const res = {};
    let i, val, name;
    if (isArray(props)) {
        i = props.length;
        while (i--) {
            val = props[i];
            if (typeof val === 'string') {
                name = camelize(val);
                res[name] = { type: null };
            }
            else if (process.env.NODE_ENV !== 'production') {
                warn$3('props must be strings when using array syntax.');
            }
        }
    }
    else if (isPlainObject(props)) {
        for (const key in props) {
            val = props[key];
            name = camelize(key);
            res[name] = isPlainObject(val) ? val : { type: val };
        }
    }
    else if (process.env.NODE_ENV !== 'production') {
        warn$3(`Invalid value for option "props": expected an Array or an Object, ` +
            `but got ${toRawType(props)}.`, vm);
    }
    options.props = res;
}
/**
 * Normalize all injections into Object-based format
 */
function normalizeInject(options, vm) {
    const inject = options.inject;
    if (!inject)
        return;
    const normalized = (options.inject = {});
    if (isArray(inject)) {
        for (let i = 0; i < inject.length; i++) {
            normalized[inject[i]] = { from: inject[i] };
        }
    }
    else if (isPlainObject(inject)) {
        for (const key in inject) {
            const val = inject[key];
            normalized[key] = isPlainObject(val)
                ? extend({ from: key }, val)
                : { from: val };
        }
    }
    else if (process.env.NODE_ENV !== 'production') {
        warn$3(`Invalid value for option "inject": expected an Array or an Object, ` +
            `but got ${toRawType(inject)}.`, vm);
    }
}
/**
 * Normalize raw function directives into object format.
 */
function normalizeDirectives(options) {
    const dirs = options.directives;
    if (dirs) {
        for (const key in dirs) {
            const def = dirs[key];
            if (isFunction(def)) {
                dirs[key] = { bind: def, update: def };
            }
        }
    }
}
function assertObjectType(name, value, vm) {
    if (!isPlainObject(value)) {
        warn$3(`Invalid value for option "${name}": expected an Object, ` +
            `but got ${toRawType(value)}.`, vm);
    }
}
/**
 * Merge two option objects into a new one.
 * Core utility used in both instantiation and inheritance.
 */
function mergeOptions(parent, child, vm) {
    if (process.env.NODE_ENV !== 'production') {
        checkComponents(child);
    }
    if (isFunction(child)) {
        // @ts-expect-error
        child = child.options;
    }
    normalizeProps(child, vm);
    normalizeInject(child, vm);
    normalizeDirectives(child);
    // Apply extends and mixins on the child options,
    // but only if it is a raw options object that isn't
    // the result of another mergeOptions call.
    // Only merged options has the _base property.
    if (!child._base) {
        if (child.extends) {
            parent = mergeOptions(parent, child.extends, vm);
        }
        if (child.mixins) {
            for (let i = 0, l = child.mixins.length; i < l; i++) {
                parent = mergeOptions(parent, child.mixins[i], vm);
            }
        }
    }
    const options = {};
    let key;
    for (key in parent) {
        mergeField(key);
    }
    for (key in child) {
        if (!hasOwn(parent, key)) {
            mergeField(key);
        }
    }
    function mergeField(key) {
        const strat = strats[key] || defaultStrat;
        options[key] = strat(parent[key], child[key], vm, key);
    }
    return options;
}
/**
 * Resolve an asset.
 * This function is used because child instances need access
 * to assets defined in its ancestor chain.
 */
function resolveAsset(options, type, id, warnMissing) {
    /* istanbul ignore if */
    if (typeof id !== 'string') {
        return;
    }
    const assets = options[type];
    // check local registration variations first
    if (hasOwn(assets, id))
        return assets[id];
    const camelizedId = camelize(id);
    if (hasOwn(assets, camelizedId))
        return assets[camelizedId];
    const PascalCaseId = capitalize(camelizedId);
    if (hasOwn(assets, PascalCaseId))
        return assets[PascalCaseId];
    // fallback to prototype chain
    const res = assets[id] || assets[camelizedId] || assets[PascalCaseId];
    if (process.env.NODE_ENV !== 'production' && warnMissing && !res) {
        warn$3('Failed to resolve ' + type.slice(0, -1) + ': ' + id);
    }
    return res;
}

function validateProp(key, propOptions, propsData, vm) {
    const prop = propOptions[key];
    const absent = !hasOwn(propsData, key);
    let value = propsData[key];
    // boolean casting
    const booleanIndex = getTypeIndex(Boolean, prop.type);
    if (booleanIndex > -1) {
        if (absent && !hasOwn(prop, 'default')) {
            value = false;
        }
        else if (value === '' || value === hyphenate(key)) {
            // only cast empty string / same name to boolean if
            // boolean has higher priority
            const stringIndex = getTypeIndex(String, prop.type);
            if (stringIndex < 0 || booleanIndex < stringIndex) {
                value = true;
            }
        }
    }
    // check default value
    if (value === undefined) {
        value = getPropDefaultValue(vm, prop, key);
        // since the default value is a fresh copy,
        // make sure to observe it.
        const prevShouldObserve = shouldObserve;
        toggleObserving(true);
        observe(value);
        toggleObserving(prevShouldObserve);
    }
    if (process.env.NODE_ENV !== 'production') {
        assertProp(prop, key, value, vm, absent);
    }
    return value;
}
/**
 * Get the default value of a prop.
 */
function getPropDefaultValue(vm, prop, key) {
    // no default, return undefined
    if (!hasOwn(prop, 'default')) {
        return undefined;
    }
    const def = prop.default;
    // warn against non-factory defaults for Object & Array
    if (process.env.NODE_ENV !== 'production' && isObject$1(def)) {
        warn$3('Invalid default value for prop "' +
            key +
            '": ' +
            'Props with type Object/Array must use a factory function ' +
            'to return the default value.', vm);
    }
    // the raw prop value was also undefined from previous render,
    // return previous default value to avoid unnecessary watcher trigger
    if (vm &&
        vm.$options.propsData &&
        vm.$options.propsData[key] === undefined &&
        vm._props[key] !== undefined) {
        return vm._props[key];
    }
    // call factory function for non-Function types
    // a value is Function if its prototype is function even across different execution context
    return isFunction(def) && getType(prop.type) !== 'Function'
        ? def.call(vm)
        : def;
}
/**
 * Assert whether a prop is valid.
 */
function assertProp(prop, name, value, vm, absent) {
    if (prop.required && absent) {
        warn$3('Missing required prop: "' + name + '"', vm);
        return;
    }
    if (value == null && !prop.required) {
        return;
    }
    let type = prop.type;
    let valid = !type || type === true;
    const expectedTypes = [];
    if (type) {
        if (!isArray(type)) {
            type = [type];
        }
        for (let i = 0; i < type.length && !valid; i++) {
            const assertedType = assertType(value, type[i], vm);
            expectedTypes.push(assertedType.expectedType || '');
            valid = assertedType.valid;
        }
    }
    const haveExpectedTypes = expectedTypes.some(t => t);
    if (!valid && haveExpectedTypes) {
        warn$3(getInvalidTypeMessage(name, value, expectedTypes), vm);
        return;
    }
    const validator = prop.validator;
    if (validator) {
        if (!validator(value)) {
            warn$3('Invalid prop: custom validator check failed for prop "' + name + '".', vm);
        }
    }
}
const simpleCheckRE = /^(String|Number|Boolean|Function|Symbol|BigInt)$/;
function assertType(value, type, vm) {
    let valid;
    const expectedType = getType(type);
    if (simpleCheckRE.test(expectedType)) {
        const t = typeof value;
        valid = t === expectedType.toLowerCase();
        // for primitive wrapper objects
        if (!valid && t === 'object') {
            valid = value instanceof type;
        }
    }
    else if (expectedType === 'Object') {
        valid = isPlainObject(value);
    }
    else if (expectedType === 'Array') {
        valid = isArray(value);
    }
    else {
        try {
            valid = value instanceof type;
        }
        catch (e) {
            warn$3('Invalid prop type: "' + String(type) + '" is not a constructor', vm);
            valid = false;
        }
    }
    return {
        valid,
        expectedType
    };
}
const functionTypeCheckRE = /^\s*function (\w+)/;
/**
 * Use function string name to check built-in types,
 * because a simple equality check will fail when running
 * across different vms / iframes.
 */
function getType(fn) {
    const match = fn && fn.toString().match(functionTypeCheckRE);
    return match ? match[1] : '';
}
function isSameType(a, b) {
    return getType(a) === getType(b);
}
function getTypeIndex(type, expectedTypes) {
    if (!isArray(expectedTypes)) {
        return isSameType(expectedTypes, type) ? 0 : -1;
    }
    for (let i = 0, len = expectedTypes.length; i < len; i++) {
        if (isSameType(expectedTypes[i], type)) {
            return i;
        }
    }
    return -1;
}
function getInvalidTypeMessage(name, value, expectedTypes) {
    let message = `Invalid prop: type check failed for prop "${name}".` +
        ` Expected ${expectedTypes.map(capitalize).join(', ')}`;
    const expectedType = expectedTypes[0];
    const receivedType = toRawType(value);
    // check if we need to specify expected value
    if (expectedTypes.length === 1 &&
        isExplicable(expectedType) &&
        isExplicable(typeof value) &&
        !isBoolean(expectedType, receivedType)) {
        message += ` with value ${styleValue(value, expectedType)}`;
    }
    message += `, got ${receivedType} `;
    // check if we need to specify received value
    if (isExplicable(receivedType)) {
        message += `with value ${styleValue(value, receivedType)}.`;
    }
    return message;
}
function styleValue(value, type) {
    if (type === 'String') {
        return `"${value}"`;
    }
    else if (type === 'Number') {
        return `${Number(value)}`;
    }
    else {
        return `${value}`;
    }
}
const EXPLICABLE_TYPES = ['string', 'number', 'boolean'];
function isExplicable(value) {
    return EXPLICABLE_TYPES.some(elem => value.toLowerCase() === elem);
}
function isBoolean(...args) {
    return args.some(elem => elem.toLowerCase() === 'boolean');
}

// these are reserved for web because they are directly compiled away
// during template compilation
makeMap('style,class');
// attributes that should be using props for binding
const acceptValue = makeMap('input,textarea,option,select,progress');
const mustUseProp = (tag, type, attr) => {
    return ((attr === 'value' && acceptValue(tag) && type !== 'button') ||
        (attr === 'selected' && tag === 'option') ||
        (attr === 'checked' && tag === 'input') ||
        (attr === 'muted' && tag === 'video'));
};
const isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
makeMap('events,caret,typing,plaintext-only');
const isBooleanAttr = makeMap('allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
    'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
    'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +
    'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +
    'required,reversed,scoped,seamless,selected,sortable,' +
    'truespeed,typemustmatch,visible');

const isHTMLTag = makeMap('html,body,base,head,link,meta,style,title,' +
    'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
    'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' +
    'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +
    's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +
    'embed,object,param,source,canvas,script,noscript,del,ins,' +
    'caption,col,colgroup,table,thead,tbody,td,th,tr,' +
    'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +
    'output,progress,select,textarea,' +
    'details,dialog,menu,menuitem,summary,' +
    'content,element,shadow,template,blockquote,iframe,tfoot');
// this map is intentionally selective, only covering SVG elements that may
// contain child elements.
const isSVG = makeMap('svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +
    'foreignobject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +
    'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view', true);
const isPreTag = (tag) => tag === 'pre';
const isReservedTag = (tag) => {
    return isHTMLTag(tag) || isSVG(tag);
};
function getTagNamespace(tag) {
    if (isSVG(tag)) {
        return 'svg';
    }
    // basic support for MathML
    // note it doesn't support other MathML elements being component roots
    if (tag === 'math') {
        return 'math';
    }
}
makeMap('text,number,password,search,email,tel,url');

const validDivisionCharRE = /[\w).+\-_$\]]/;
function parseFilters(exp) {
    let inSingle = false;
    let inDouble = false;
    let inTemplateString = false;
    let inRegex = false;
    let curly = 0;
    let square = 0;
    let paren = 0;
    let lastFilterIndex = 0;
    let c, prev, i, expression, filters;
    for (i = 0; i < exp.length; i++) {
        prev = c;
        c = exp.charCodeAt(i);
        if (inSingle) {
            if (c === 0x27 && prev !== 0x5c)
                inSingle = false;
        }
        else if (inDouble) {
            if (c === 0x22 && prev !== 0x5c)
                inDouble = false;
        }
        else if (inTemplateString) {
            if (c === 0x60 && prev !== 0x5c)
                inTemplateString = false;
        }
        else if (inRegex) {
            if (c === 0x2f && prev !== 0x5c)
                inRegex = false;
        }
        else if (c === 0x7c && // pipe
            exp.charCodeAt(i + 1) !== 0x7c &&
            exp.charCodeAt(i - 1) !== 0x7c &&
            !curly &&
            !square &&
            !paren) {
            if (expression === undefined) {
                // first filter, end of expression
                lastFilterIndex = i + 1;
                expression = exp.slice(0, i).trim();
            }
            else {
                pushFilter();
            }
        }
        else {
            switch (c) {
                case 0x22:
                    inDouble = true;
                    break; // "
                case 0x27:
                    inSingle = true;
                    break; // '
                case 0x60:
                    inTemplateString = true;
                    break; // `
                case 0x28:
                    paren++;
                    break; // (
                case 0x29:
                    paren--;
                    break; // )
                case 0x5b:
                    square++;
                    break; // [
                case 0x5d:
                    square--;
                    break; // ]
                case 0x7b:
                    curly++;
                    break; // {
                case 0x7d:
                    curly--;
                    break; // }
            }
            if (c === 0x2f) {
                // /
                let j = i - 1;
                let p;
                // find first non-whitespace prev char
                for (; j >= 0; j--) {
                    p = exp.charAt(j);
                    if (p !== ' ')
                        break;
                }
                if (!p || !validDivisionCharRE.test(p)) {
                    inRegex = true;
                }
            }
        }
    }
    if (expression === undefined) {
        expression = exp.slice(0, i).trim();
    }
    else if (lastFilterIndex !== 0) {
        pushFilter();
    }
    function pushFilter() {
        (filters || (filters = [])).push(exp.slice(lastFilterIndex, i).trim());
        lastFilterIndex = i + 1;
    }
    if (filters) {
        for (i = 0; i < filters.length; i++) {
            expression = wrapFilter(expression, filters[i]);
        }
    }
    return expression;
}
function wrapFilter(exp, filter) {
    const i = filter.indexOf('(');
    if (i < 0) {
        // _f: resolveFilter
        return `_f("${filter}")(${exp})`;
    }
    else {
        const name = filter.slice(0, i);
        const args = filter.slice(i + 1);
        return `_f("${name}")(${exp}${args !== ')' ? ',' + args : args}`;
    }
}

const defaultTagRE = /\{\{((?:.|\r?\n)+?)\}\}/g;
const regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
const buildRegex = cached(delimiters => {
    const open = delimiters[0].replace(regexEscapeRE, '\\$&');
    const close = delimiters[1].replace(regexEscapeRE, '\\$&');
    return new RegExp(open + '((?:.|\\n)+?)' + close, 'g');
});
function parseText(text, delimiters) {
    //@ts-expect-error
    const tagRE = delimiters ? buildRegex(delimiters) : defaultTagRE;
    if (!tagRE.test(text)) {
        return;
    }
    const tokens = [];
    const rawTokens = [];
    let lastIndex = (tagRE.lastIndex = 0);
    let match, index, tokenValue;
    while ((match = tagRE.exec(text))) {
        index = match.index;
        // push text token
        if (index > lastIndex) {
            rawTokens.push((tokenValue = text.slice(lastIndex, index)));
            tokens.push(JSON.stringify(tokenValue));
        }
        // tag token
        const exp = parseFilters(match[1].trim());
        tokens.push(`_s(${exp})`);
        rawTokens.push({ '@binding': exp });
        lastIndex = index + match[0].length;
    }
    if (lastIndex < text.length) {
        rawTokens.push((tokenValue = text.slice(lastIndex)));
        tokens.push(JSON.stringify(tokenValue));
    }
    return {
        expression: tokens.join('+'),
        tokens: rawTokens
    };
}

/* eslint-disable no-unused-vars */
function baseWarn(msg, range) {
    console.error(`[Vue compiler]: ${msg}`);
}
/* eslint-enable no-unused-vars */
function pluckModuleFunction(modules, key) {
    return modules ? modules.map(m => m[key]).filter(_ => _) : [];
}
function addProp(el, name, value, range, dynamic) {
    (el.props || (el.props = [])).push(rangeSetItem({ name, value, dynamic }, range));
    el.plain = false;
}
function addAttr(el, name, value, range, dynamic) {
    const attrs = dynamic
        ? el.dynamicAttrs || (el.dynamicAttrs = [])
        : el.attrs || (el.attrs = []);
    attrs.push(rangeSetItem({ name, value, dynamic }, range));
    el.plain = false;
}
// add a raw attr (use this in preTransforms)
function addRawAttr(el, name, value, range) {
    el.attrsMap[name] = value;
    el.attrsList.push(rangeSetItem({ name, value }, range));
}
function addDirective(el, name, rawName, value, arg, isDynamicArg, modifiers, range) {
    (el.directives || (el.directives = [])).push(rangeSetItem({
        name,
        rawName,
        value,
        arg,
        isDynamicArg,
        modifiers
    }, range));
    el.plain = false;
}
function prependModifierMarker(symbol, name, dynamic) {
    return dynamic ? `_p(${name},"${symbol}")` : symbol + name; // mark the event as captured
}
function addHandler(el, name, value, modifiers, important, warn, range, dynamic) {
    modifiers = modifiers || emptyObject;
    // warn prevent and passive modifier
    /* istanbul ignore if */
    if (process.env.NODE_ENV !== 'production' && warn && modifiers.prevent && modifiers.passive) {
        warn("passive and prevent can't be used together. " +
            "Passive handler can't prevent default event.", range);
    }
    // normalize click.right and click.middle since they don't actually fire
    // this is technically browser-specific, but at least for now browsers are
    // the only target envs that have right/middle clicks.
    if (modifiers.right) {
        if (dynamic) {
            name = `(${name})==='click'?'contextmenu':(${name})`;
        }
        else if (name === 'click') {
            name = 'contextmenu';
            delete modifiers.right;
        }
    }
    else if (modifiers.middle) {
        if (dynamic) {
            name = `(${name})==='click'?'mouseup':(${name})`;
        }
        else if (name === 'click') {
            name = 'mouseup';
        }
    }
    // check capture modifier
    if (modifiers.capture) {
        delete modifiers.capture;
        name = prependModifierMarker('!', name, dynamic);
    }
    if (modifiers.once) {
        delete modifiers.once;
        name = prependModifierMarker('~', name, dynamic);
    }
    /* istanbul ignore if */
    if (modifiers.passive) {
        delete modifiers.passive;
        name = prependModifierMarker('&', name, dynamic);
    }
    let events;
    if (modifiers.native) {
        delete modifiers.native;
        events = el.nativeEvents || (el.nativeEvents = {});
    }
    else {
        events = el.events || (el.events = {});
    }
    const newHandler = rangeSetItem({ value: value.trim(), dynamic }, range);
    if (modifiers !== emptyObject) {
        newHandler.modifiers = modifiers;
    }
    const handlers = events[name];
    /* istanbul ignore if */
    if (Array.isArray(handlers)) {
        important ? handlers.unshift(newHandler) : handlers.push(newHandler);
    }
    else if (handlers) {
        events[name] = important ? [newHandler, handlers] : [handlers, newHandler];
    }
    else {
        events[name] = newHandler;
    }
    el.plain = false;
}
function getRawBindingAttr(el, name) {
    return (el.rawAttrsMap[':' + name] ||
        el.rawAttrsMap['v-bind:' + name] ||
        el.rawAttrsMap[name]);
}
function getBindingAttr(el, name, getStatic) {
    const dynamicValue = getAndRemoveAttr(el, ':' + name) || getAndRemoveAttr(el, 'v-bind:' + name);
    if (dynamicValue != null) {
        return parseFilters(dynamicValue);
    }
    else if (getStatic !== false) {
        const staticValue = getAndRemoveAttr(el, name);
        if (staticValue != null) {
            return JSON.stringify(staticValue);
        }
    }
}
// note: this only removes the attr from the Array (attrsList) so that it
// doesn't get processed by processAttrs.
// By default it does NOT remove it from the map (attrsMap) because the map is
// needed during codegen.
function getAndRemoveAttr(el, name, removeFromMap) {
    let val;
    if ((val = el.attrsMap[name]) != null) {
        const list = el.attrsList;
        for (let i = 0, l = list.length; i < l; i++) {
            if (list[i].name === name) {
                list.splice(i, 1);
                break;
            }
        }
    }
    if (removeFromMap) {
        delete el.attrsMap[name];
    }
    return val;
}
function getAndRemoveAttrByRegex(el, name) {
    const list = el.attrsList;
    for (let i = 0, l = list.length; i < l; i++) {
        const attr = list[i];
        if (name.test(attr.name)) {
            list.splice(i, 1);
            return attr;
        }
    }
}
function rangeSetItem(item, range) {
    if (range) {
        if (range.start != null) {
            item.start = range.start;
        }
        if (range.end != null) {
            item.end = range.end;
        }
    }
    return item;
}

function transformNode$1(el, options) {
    const warn = options.warn || baseWarn;
    const staticClass = getAndRemoveAttr(el, 'class');
    if (process.env.NODE_ENV !== 'production' && staticClass) {
        const res = parseText(staticClass, options.delimiters);
        if (res) {
            warn(`class="${staticClass}": ` +
                'Interpolation inside attributes has been removed. ' +
                'Use v-bind or the colon shorthand instead. For example, ' +
                'instead of <div class="{{ val }}">, use <div :class="val">.', el.rawAttrsMap['class']);
        }
    }
    if (staticClass) {
        el.staticClass = JSON.stringify(staticClass.replace(/\s+/g, ' ').trim());
    }
    const classBinding = getBindingAttr(el, 'class', false /* getStatic */);
    if (classBinding) {
        el.classBinding = classBinding;
    }
}
function genData$2(el) {
    let data = '';
    if (el.staticClass) {
        data += `staticClass:${el.staticClass},`;
    }
    if (el.classBinding) {
        data += `class:${el.classBinding},`;
    }
    return data;
}
var klass = {
    staticKeys: ['staticClass'],
    transformNode: transformNode$1,
    genData: genData$2
};

const parseStyleText = cached(function (cssText) {
    const res = {};
    const listDelimiter = /;(?![^(]*\))/g;
    const propertyDelimiter = /:(.+)/;
    cssText.split(listDelimiter).forEach(function (item) {
        if (item) {
            const tmp = item.split(propertyDelimiter);
            tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim());
        }
    });
    return res;
});

function transformNode(el, options) {
    const warn = options.warn || baseWarn;
    const staticStyle = getAndRemoveAttr(el, 'style');
    if (staticStyle) {
        /* istanbul ignore if */
        if (process.env.NODE_ENV !== 'production') {
            const res = parseText(staticStyle, options.delimiters);
            if (res) {
                warn(`style="${staticStyle}": ` +
                    'Interpolation inside attributes has been removed. ' +
                    'Use v-bind or the colon shorthand instead. For example, ' +
                    'instead of <div style="{{ val }}">, use <div :style="val">.', el.rawAttrsMap['style']);
            }
        }
        el.staticStyle = JSON.stringify(parseStyleText(staticStyle));
    }
    const styleBinding = getBindingAttr(el, 'style', false /* getStatic */);
    if (styleBinding) {
        el.styleBinding = styleBinding;
    }
}
function genData$1(el) {
    let data = '';
    if (el.staticStyle) {
        data += `staticStyle:${el.staticStyle},`;
    }
    if (el.styleBinding) {
        data += `style:(${el.styleBinding}),`;
    }
    return data;
}
var style = {
    staticKeys: ['staticStyle'],
    transformNode,
    genData: genData$1
};

var he$1 = {exports: {}};

/*! https://mths.be/he v1.2.0 by @mathias | MIT license */

(function (module, exports) {
(function(root) {

		// Detect free variables `exports`.
		var freeExports = exports;

		// Detect free variable `module`.
		var freeModule = module &&
			module.exports == freeExports && module;

		// Detect free variable `global`, from Node.js or Browserified code,
		// and use it as `root`.
		var freeGlobal = typeof commonjsGlobal == 'object' && commonjsGlobal;
		if (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal) {
			root = freeGlobal;
		}

		/*--------------------------------------------------------------------------*/

		// All astral symbols.
		var regexAstralSymbols = /[\uD800-\uDBFF][\uDC00-\uDFFF]/g;
		// All ASCII symbols (not just printable ASCII) except those listed in the
		// first column of the overrides table.
		// https://html.spec.whatwg.org/multipage/syntax.html#table-charref-overrides
		var regexAsciiWhitelist = /[\x01-\x7F]/g;
		// All BMP symbols that are not ASCII newlines, printable ASCII symbols, or
		// code points listed in the first column of the overrides table on
		// https://html.spec.whatwg.org/multipage/syntax.html#table-charref-overrides.
		var regexBmpWhitelist = /[\x01-\t\x0B\f\x0E-\x1F\x7F\x81\x8D\x8F\x90\x9D\xA0-\uFFFF]/g;

		var regexEncodeNonAscii = /<\u20D2|=\u20E5|>\u20D2|\u205F\u200A|\u219D\u0338|\u2202\u0338|\u2220\u20D2|\u2229\uFE00|\u222A\uFE00|\u223C\u20D2|\u223D\u0331|\u223E\u0333|\u2242\u0338|\u224B\u0338|\u224D\u20D2|\u224E\u0338|\u224F\u0338|\u2250\u0338|\u2261\u20E5|\u2264\u20D2|\u2265\u20D2|\u2266\u0338|\u2267\u0338|\u2268\uFE00|\u2269\uFE00|\u226A\u0338|\u226A\u20D2|\u226B\u0338|\u226B\u20D2|\u227F\u0338|\u2282\u20D2|\u2283\u20D2|\u228A\uFE00|\u228B\uFE00|\u228F\u0338|\u2290\u0338|\u2293\uFE00|\u2294\uFE00|\u22B4\u20D2|\u22B5\u20D2|\u22D8\u0338|\u22D9\u0338|\u22DA\uFE00|\u22DB\uFE00|\u22F5\u0338|\u22F9\u0338|\u2933\u0338|\u29CF\u0338|\u29D0\u0338|\u2A6D\u0338|\u2A70\u0338|\u2A7D\u0338|\u2A7E\u0338|\u2AA1\u0338|\u2AA2\u0338|\u2AAC\uFE00|\u2AAD\uFE00|\u2AAF\u0338|\u2AB0\u0338|\u2AC5\u0338|\u2AC6\u0338|\u2ACB\uFE00|\u2ACC\uFE00|\u2AFD\u20E5|[\xA0-\u0113\u0116-\u0122\u0124-\u012B\u012E-\u014D\u0150-\u017E\u0192\u01B5\u01F5\u0237\u02C6\u02C7\u02D8-\u02DD\u0311\u0391-\u03A1\u03A3-\u03A9\u03B1-\u03C9\u03D1\u03D2\u03D5\u03D6\u03DC\u03DD\u03F0\u03F1\u03F5\u03F6\u0401-\u040C\u040E-\u044F\u0451-\u045C\u045E\u045F\u2002-\u2005\u2007-\u2010\u2013-\u2016\u2018-\u201A\u201C-\u201E\u2020-\u2022\u2025\u2026\u2030-\u2035\u2039\u203A\u203E\u2041\u2043\u2044\u204F\u2057\u205F-\u2063\u20AC\u20DB\u20DC\u2102\u2105\u210A-\u2113\u2115-\u211E\u2122\u2124\u2127-\u2129\u212C\u212D\u212F-\u2131\u2133-\u2138\u2145-\u2148\u2153-\u215E\u2190-\u219B\u219D-\u21A7\u21A9-\u21AE\u21B0-\u21B3\u21B5-\u21B7\u21BA-\u21DB\u21DD\u21E4\u21E5\u21F5\u21FD-\u2205\u2207-\u2209\u220B\u220C\u220F-\u2214\u2216-\u2218\u221A\u221D-\u2238\u223A-\u2257\u2259\u225A\u225C\u225F-\u2262\u2264-\u228B\u228D-\u229B\u229D-\u22A5\u22A7-\u22B0\u22B2-\u22BB\u22BD-\u22DB\u22DE-\u22E3\u22E6-\u22F7\u22F9-\u22FE\u2305\u2306\u2308-\u2310\u2312\u2313\u2315\u2316\u231C-\u231F\u2322\u2323\u232D\u232E\u2336\u233D\u233F\u237C\u23B0\u23B1\u23B4-\u23B6\u23DC-\u23DF\u23E2\u23E7\u2423\u24C8\u2500\u2502\u250C\u2510\u2514\u2518\u251C\u2524\u252C\u2534\u253C\u2550-\u256C\u2580\u2584\u2588\u2591-\u2593\u25A1\u25AA\u25AB\u25AD\u25AE\u25B1\u25B3-\u25B5\u25B8\u25B9\u25BD-\u25BF\u25C2\u25C3\u25CA\u25CB\u25EC\u25EF\u25F8-\u25FC\u2605\u2606\u260E\u2640\u2642\u2660\u2663\u2665\u2666\u266A\u266D-\u266F\u2713\u2717\u2720\u2736\u2758\u2772\u2773\u27C8\u27C9\u27E6-\u27ED\u27F5-\u27FA\u27FC\u27FF\u2902-\u2905\u290C-\u2913\u2916\u2919-\u2920\u2923-\u292A\u2933\u2935-\u2939\u293C\u293D\u2945\u2948-\u294B\u294E-\u2976\u2978\u2979\u297B-\u297F\u2985\u2986\u298B-\u2996\u299A\u299C\u299D\u29A4-\u29B7\u29B9\u29BB\u29BC\u29BE-\u29C5\u29C9\u29CD-\u29D0\u29DC-\u29DE\u29E3-\u29E5\u29EB\u29F4\u29F6\u2A00-\u2A02\u2A04\u2A06\u2A0C\u2A0D\u2A10-\u2A17\u2A22-\u2A27\u2A29\u2A2A\u2A2D-\u2A31\u2A33-\u2A3C\u2A3F\u2A40\u2A42-\u2A4D\u2A50\u2A53-\u2A58\u2A5A-\u2A5D\u2A5F\u2A66\u2A6A\u2A6D-\u2A75\u2A77-\u2A9A\u2A9D-\u2AA2\u2AA4-\u2AB0\u2AB3-\u2AC8\u2ACB\u2ACC\u2ACF-\u2ADB\u2AE4\u2AE6-\u2AE9\u2AEB-\u2AF3\u2AFD\uFB00-\uFB04]|\uD835[\uDC9C\uDC9E\uDC9F\uDCA2\uDCA5\uDCA6\uDCA9-\uDCAC\uDCAE-\uDCB9\uDCBB\uDCBD-\uDCC3\uDCC5-\uDCCF\uDD04\uDD05\uDD07-\uDD0A\uDD0D-\uDD14\uDD16-\uDD1C\uDD1E-\uDD39\uDD3B-\uDD3E\uDD40-\uDD44\uDD46\uDD4A-\uDD50\uDD52-\uDD6B]/g;
		var encodeMap = {'\xAD':'shy','\u200C':'zwnj','\u200D':'zwj','\u200E':'lrm','\u2063':'ic','\u2062':'it','\u2061':'af','\u200F':'rlm','\u200B':'ZeroWidthSpace','\u2060':'NoBreak','\u0311':'DownBreve','\u20DB':'tdot','\u20DC':'DotDot','\t':'Tab','\n':'NewLine','\u2008':'puncsp','\u205F':'MediumSpace','\u2009':'thinsp','\u200A':'hairsp','\u2004':'emsp13','\u2002':'ensp','\u2005':'emsp14','\u2003':'emsp','\u2007':'numsp','\xA0':'nbsp','\u205F\u200A':'ThickSpace','\u203E':'oline','_':'lowbar','\u2010':'dash','\u2013':'ndash','\u2014':'mdash','\u2015':'horbar',',':'comma',';':'semi','\u204F':'bsemi',':':'colon','\u2A74':'Colone','!':'excl','\xA1':'iexcl','?':'quest','\xBF':'iquest','.':'period','\u2025':'nldr','\u2026':'mldr','\xB7':'middot','\'':'apos','\u2018':'lsquo','\u2019':'rsquo','\u201A':'sbquo','\u2039':'lsaquo','\u203A':'rsaquo','"':'quot','\u201C':'ldquo','\u201D':'rdquo','\u201E':'bdquo','\xAB':'laquo','\xBB':'raquo','(':'lpar',')':'rpar','[':'lsqb',']':'rsqb','{':'lcub','}':'rcub','\u2308':'lceil','\u2309':'rceil','\u230A':'lfloor','\u230B':'rfloor','\u2985':'lopar','\u2986':'ropar','\u298B':'lbrke','\u298C':'rbrke','\u298D':'lbrkslu','\u298E':'rbrksld','\u298F':'lbrksld','\u2990':'rbrkslu','\u2991':'langd','\u2992':'rangd','\u2993':'lparlt','\u2994':'rpargt','\u2995':'gtlPar','\u2996':'ltrPar','\u27E6':'lobrk','\u27E7':'robrk','\u27E8':'lang','\u27E9':'rang','\u27EA':'Lang','\u27EB':'Rang','\u27EC':'loang','\u27ED':'roang','\u2772':'lbbrk','\u2773':'rbbrk','\u2016':'Vert','\xA7':'sect','\xB6':'para','@':'commat','*':'ast','/':'sol','undefined':null,'&':'amp','#':'num','%':'percnt','\u2030':'permil','\u2031':'pertenk','\u2020':'dagger','\u2021':'Dagger','\u2022':'bull','\u2043':'hybull','\u2032':'prime','\u2033':'Prime','\u2034':'tprime','\u2057':'qprime','\u2035':'bprime','\u2041':'caret','`':'grave','\xB4':'acute','\u02DC':'tilde','^':'Hat','\xAF':'macr','\u02D8':'breve','\u02D9':'dot','\xA8':'die','\u02DA':'ring','\u02DD':'dblac','\xB8':'cedil','\u02DB':'ogon','\u02C6':'circ','\u02C7':'caron','\xB0':'deg','\xA9':'copy','\xAE':'reg','\u2117':'copysr','\u2118':'wp','\u211E':'rx','\u2127':'mho','\u2129':'iiota','\u2190':'larr','\u219A':'nlarr','\u2192':'rarr','\u219B':'nrarr','\u2191':'uarr','\u2193':'darr','\u2194':'harr','\u21AE':'nharr','\u2195':'varr','\u2196':'nwarr','\u2197':'nearr','\u2198':'searr','\u2199':'swarr','\u219D':'rarrw','\u219D\u0338':'nrarrw','\u219E':'Larr','\u219F':'Uarr','\u21A0':'Rarr','\u21A1':'Darr','\u21A2':'larrtl','\u21A3':'rarrtl','\u21A4':'mapstoleft','\u21A5':'mapstoup','\u21A6':'map','\u21A7':'mapstodown','\u21A9':'larrhk','\u21AA':'rarrhk','\u21AB':'larrlp','\u21AC':'rarrlp','\u21AD':'harrw','\u21B0':'lsh','\u21B1':'rsh','\u21B2':'ldsh','\u21B3':'rdsh','\u21B5':'crarr','\u21B6':'cularr','\u21B7':'curarr','\u21BA':'olarr','\u21BB':'orarr','\u21BC':'lharu','\u21BD':'lhard','\u21BE':'uharr','\u21BF':'uharl','\u21C0':'rharu','\u21C1':'rhard','\u21C2':'dharr','\u21C3':'dharl','\u21C4':'rlarr','\u21C5':'udarr','\u21C6':'lrarr','\u21C7':'llarr','\u21C8':'uuarr','\u21C9':'rrarr','\u21CA':'ddarr','\u21CB':'lrhar','\u21CC':'rlhar','\u21D0':'lArr','\u21CD':'nlArr','\u21D1':'uArr','\u21D2':'rArr','\u21CF':'nrArr','\u21D3':'dArr','\u21D4':'iff','\u21CE':'nhArr','\u21D5':'vArr','\u21D6':'nwArr','\u21D7':'neArr','\u21D8':'seArr','\u21D9':'swArr','\u21DA':'lAarr','\u21DB':'rAarr','\u21DD':'zigrarr','\u21E4':'larrb','\u21E5':'rarrb','\u21F5':'duarr','\u21FD':'loarr','\u21FE':'roarr','\u21FF':'hoarr','\u2200':'forall','\u2201':'comp','\u2202':'part','\u2202\u0338':'npart','\u2203':'exist','\u2204':'nexist','\u2205':'empty','\u2207':'Del','\u2208':'in','\u2209':'notin','\u220B':'ni','\u220C':'notni','\u03F6':'bepsi','\u220F':'prod','\u2210':'coprod','\u2211':'sum','+':'plus','\xB1':'pm','\xF7':'div','\xD7':'times','<':'lt','\u226E':'nlt','<\u20D2':'nvlt','=':'equals','\u2260':'ne','=\u20E5':'bne','\u2A75':'Equal','>':'gt','\u226F':'ngt','>\u20D2':'nvgt','\xAC':'not','|':'vert','\xA6':'brvbar','\u2212':'minus','\u2213':'mp','\u2214':'plusdo','\u2044':'frasl','\u2216':'setmn','\u2217':'lowast','\u2

		var regexEscape = /["&'<>`]/g;
		var escapeMap = {
			'"': '&quot;',
			'&': '&amp;',
			'\'': '&#x27;',
			'<': '&lt;',
			// See https://mathiasbynens.be/notes/ambiguous-ampersands: in HTML, the
			// following is not strictly necessary unless it’s part of a tag or an
			// unquoted attribute value. We’re only escaping it to support those
			// situations, and for XML support.
			'>': '&gt;',
			// In Internet Explorer ≤ 8, the backtick character can be used
			// to break out of (un)quoted attribute values or HTML comments.
			// See http://html5sec.org/#102, http://html5sec.org/#108, and
			// http://html5sec.org/#133.
			'`': '&#x60;'
		};

		var regexInvalidEntity = /&#(?:[xX][^a-fA-F0-9]|[^0-9xX])/;
		var regexInvalidRawCodePoint = /[\0-\x08\x0B\x0E-\x1F\x7F-\x9F\uFDD0-\uFDEF\uFFFE\uFFFF]|[\uD83F\uD87F\uD8BF\uD8FF\uD93F\uD97F\uD9BF\uD9FF\uDA3F\uDA7F\uDABF\uDAFF\uDB3F\uDB7F\uDBBF\uDBFF][\uDFFE\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF]/;
		var regexDecode = /&(CounterClockwiseContourIntegral|DoubleLongLeftRightArrow|ClockwiseContourIntegral|NotNestedGreaterGreater|NotSquareSupersetEqual|DiacriticalDoubleAcute|NotRightTriangleEqual|NotSucceedsSlantEqual|NotPrecedesSlantEqual|CloseCurlyDoubleQuote|NegativeVeryThinSpace|DoubleContourIntegral|FilledVerySmallSquare|CapitalDifferentialD|OpenCurlyDoubleQuote|EmptyVerySmallSquare|NestedGreaterGreater|DoubleLongRightArrow|NotLeftTriangleEqual|NotGreaterSlantEqual|ReverseUpEquilibrium|DoubleLeftRightArrow|NotSquareSubsetEqual|NotDoubleVerticalBar|RightArrowLeftArrow|NotGreaterFullEqual|NotRightTriangleBar|SquareSupersetEqual|DownLeftRightVector|DoubleLongLeftArrow|leftrightsquigarrow|LeftArrowRightArrow|NegativeMediumSpace|blacktriangleright|RightDownVectorBar|PrecedesSlantEqual|RightDoubleBracket|SucceedsSlantEqual|NotLeftTriangleBar|RightTriangleEqual|SquareIntersection|RightDownTeeVector|ReverseEquilibrium|NegativeThickSpace|longleftrightarrow|Longleftrightarrow|LongLeftRightArrow|DownRightTeeVector|DownRightVectorBar|GreaterSlantEqual|SquareSubsetEqual|LeftDownVectorBar|LeftDoubleBracket|VerticalSeparator|rightleftharpoons|NotGreaterGreater|NotSquareSuperset|blacktriangleleft|blacktriangledown|NegativeThinSpace|LeftDownTeeVector|NotLessSlantEqual|leftrightharpoons|DoubleUpDownArrow|DoubleVerticalBar|LeftTriangleEqual|FilledSmallSquare|twoheadrightarrow|NotNestedLessLess|DownLeftTeeVector|DownLeftVectorBar|RightAngleBracket|NotTildeFullEqual|NotReverseElement|RightUpDownVector|DiacriticalTilde|NotSucceedsTilde|circlearrowright|NotPrecedesEqual|rightharpoondown|DoubleRightArrow|NotSucceedsEqual|NonBreakingSpace|NotRightTriangle|LessEqualGreater|RightUpTeeVector|LeftAngleBracket|GreaterFullEqual|DownArrowUpArrow|RightUpVectorBar|twoheadleftarrow|GreaterEqualLess|downharpoonright|RightTriangleBar|ntrianglerighteq|NotSupersetEqual|LeftUpDownVector|DiacriticalAcute|rightrightarrows|vartriangleright|UpArrowDownArrow|DiacriticalGrave|UnderParenthesis|EmptySmallSquare|LeftUpVectorBar|leftrightarrows|DownRightVector|downharpoonleft|trianglerighteq|ShortRightArrow|OverParenthesis|DoubleLeftArrow|DoubleDownArrow|NotSquareSubset|bigtriangledown|ntrianglelefteq|UpperRightArrow|curvearrowright|vartriangleleft|NotLeftTriangle|nleftrightarrow|LowerRightArrow|NotHumpDownHump|NotGreaterTilde|rightthreetimes|LeftUpTeeVector|NotGreaterEqual|straightepsilon|LeftTriangleBar|rightsquigarrow|ContourIntegral|rightleftarrows|CloseCurlyQuote|RightDownVector|LeftRightVector|nLeftrightarrow|leftharpoondown|circlearrowleft|SquareSuperset|OpenCurlyQuote|hookrightarrow|HorizontalLine|DiacriticalDot|NotLessGreater|ntriangleright|DoubleRightTee|InvisibleComma|InvisibleTimes|LowerLeftArrow|DownLeftVector|NotSubsetEqual|curvearrowleft|trianglelefteq|NotVerticalBar|TildeFullEqual|downdownarrows|NotGreaterLess|RightTeeVector|ZeroWidthSpace|looparrowright|LongRightArrow|doublebarwedge|ShortLeftArrow|ShortDownArrow|RightVectorBar|GreaterGreater|ReverseElement|rightharpoonup|LessSlantEqual|leftthreetimes|upharpoonright|rightarrowtail|LeftDownVector|Longrightarrow|NestedLessLess|UpperLeftArrow|nshortparallel|leftleftarrows|leftrightarrow|Leftrightarrow|LeftRightArrow|longrightarrow|upharpoonleft|RightArrowBar|ApplyFunction|LeftTeeVector|leftarrowtail|NotEqualTilde|varsubsetneqq|varsupsetneqq|RightTeeArrow|SucceedsEqual|SucceedsTilde|LeftVectorBar|SupersetEqual|hookleftarrow|DifferentialD|VerticalTilde|VeryThinSpace|blacktriangle|bigtriangleup|LessFullEqual|divideontimes|leftharpoonup|UpEquilibrium|ntriangleleft|RightTriangle|measuredangle|shortparallel|longleftarrow|Longleftarrow|LongLeftArrow|DoubleLeftTee|Poincareplane|PrecedesEqual|triangleright|DoubleUpArrow|RightUpVector|fallingdotseq|looparrowleft|PrecedesTilde|NotTildeEqual|NotTildeTilde|smallsetminus|Proportional|triangleleft|triangledown|UnderBracket|NotHumpEqual|exponentiale|ExponentialE|NotLessTilde|HilbertSpace|RightCeiling|blacklozenge|varsupsetneq|HumpDownHump|GreaterEqual|VerticalLine|LeftTeeArrow|NotLessEqual|DownTeeArrow|LeftTriangle|varsubsetneq|Intersection|NotCongruent|DownArrowBar
		var decodeMap = {'aacute':'\xE1','Aacute':'\xC1','abreve':'\u0103','Abreve':'\u0102','ac':'\u223E','acd':'\u223F','acE':'\u223E\u0333','acirc':'\xE2','Acirc':'\xC2','acute':'\xB4','acy':'\u0430','Acy':'\u0410','aelig':'\xE6','AElig':'\xC6','af':'\u2061','afr':'\uD835\uDD1E','Afr':'\uD835\uDD04','agrave':'\xE0','Agrave':'\xC0','alefsym':'\u2135','aleph':'\u2135','alpha':'\u03B1','Alpha':'\u0391','amacr':'\u0101','Amacr':'\u0100','amalg':'\u2A3F','amp':'&','AMP':'&','and':'\u2227','And':'\u2A53','andand':'\u2A55','andd':'\u2A5C','andslope':'\u2A58','andv':'\u2A5A','ang':'\u2220','ange':'\u29A4','angle':'\u2220','angmsd':'\u2221','angmsdaa':'\u29A8','angmsdab':'\u29A9','angmsdac':'\u29AA','angmsdad':'\u29AB','angmsdae':'\u29AC','angmsdaf':'\u29AD','angmsdag':'\u29AE','angmsdah':'\u29AF','angrt':'\u221F','angrtvb':'\u22BE','angrtvbd':'\u299D','angsph':'\u2222','angst':'\xC5','angzarr':'\u237C','aogon':'\u0105','Aogon':'\u0104','aopf':'\uD835\uDD52','Aopf':'\uD835\uDD38','ap':'\u2248','apacir':'\u2A6F','ape':'\u224A','apE':'\u2A70','apid':'\u224B','apos':'\'','ApplyFunction':'\u2061','approx':'\u2248','approxeq':'\u224A','aring':'\xE5','Aring':'\xC5','ascr':'\uD835\uDCB6','Ascr':'\uD835\uDC9C','Assign':'\u2254','ast':'*','asymp':'\u2248','asympeq':'\u224D','atilde':'\xE3','Atilde':'\xC3','auml':'\xE4','Auml':'\xC4','awconint':'\u2233','awint':'\u2A11','backcong':'\u224C','backepsilon':'\u03F6','backprime':'\u2035','backsim':'\u223D','backsimeq':'\u22CD','Backslash':'\u2216','Barv':'\u2AE7','barvee':'\u22BD','barwed':'\u2305','Barwed':'\u2306','barwedge':'\u2305','bbrk':'\u23B5','bbrktbrk':'\u23B6','bcong':'\u224C','bcy':'\u0431','Bcy':'\u0411','bdquo':'\u201E','becaus':'\u2235','because':'\u2235','Because':'\u2235','bemptyv':'\u29B0','bepsi':'\u03F6','bernou':'\u212C','Bernoullis':'\u212C','beta':'\u03B2','Beta':'\u0392','beth':'\u2136','between':'\u226C','bfr':'\uD835\uDD1F','Bfr':'\uD835\uDD05','bigcap':'\u22C2','bigcirc':'\u25EF','bigcup':'\u22C3','bigodot':'\u2A00','bigoplus':'\u2A01','bigotimes':'\u2A02','bigsqcup':'\u2A06','bigstar':'\u2605','bigtriangledown':'\u25BD','bigtriangleup':'\u25B3','biguplus':'\u2A04','bigvee':'\u22C1','bigwedge':'\u22C0','bkarow':'\u290D','blacklozenge':'\u29EB','blacksquare':'\u25AA','blacktriangle':'\u25B4','blacktriangledown':'\u25BE','blacktriangleleft':'\u25C2','blacktriangleright':'\u25B8','blank':'\u2423','blk12':'\u2592','blk14':'\u2591','blk34':'\u2593','block':'\u2588','bne':'=\u20E5','bnequiv':'\u2261\u20E5','bnot':'\u2310','bNot':'\u2AED','bopf':'\uD835\uDD53','Bopf':'\uD835\uDD39','bot':'\u22A5','bottom':'\u22A5','bowtie':'\u22C8','boxbox':'\u29C9','boxdl':'\u2510','boxdL':'\u2555','boxDl':'\u2556','boxDL':'\u2557','boxdr':'\u250C','boxdR':'\u2552','boxDr':'\u2553','boxDR':'\u2554','boxh':'\u2500','boxH':'\u2550','boxhd':'\u252C','boxhD':'\u2565','boxHd':'\u2564','boxHD':'\u2566','boxhu':'\u2534','boxhU':'\u2568','boxHu':'\u2567','boxHU':'\u2569','boxminus':'\u229F','boxplus':'\u229E','boxtimes':'\u22A0','boxul':'\u2518','boxuL':'\u255B','boxUl':'\u255C','boxUL':'\u255D','boxur':'\u2514','boxuR':'\u2558','boxUr':'\u2559','boxUR':'\u255A','boxv':'\u2502','boxV':'\u2551','boxvh':'\u253C','boxvH':'\u256A','boxVh':'\u256B','boxVH':'\u256C','boxvl':'\u2524','boxvL':'\u2561','boxVl':'\u2562','boxVL':'\u2563','boxvr':'\u251C','boxvR':'\u255E','boxVr':'\u255F','boxVR':'\u2560','bprime':'\u2035','breve':'\u02D8','Breve':'\u02D8','brvbar':'\xA6','bscr':'\uD835\uDCB7','Bscr':'\u212C','bsemi':'\u204F','bsim':'\u223D','bsime':'\u22CD','bsol':'\\','bsolb':'\u29C5','bsolhsub':'\u27C8','bull':'\u2022','bullet':'\u2022','bump':'\u224E','bumpe':'\u224F','bumpE':'\u2AAE','bumpeq':'\u224F','Bumpeq':'\u224E','cacute':'\u0107','Cacute':'\u0106','cap':'\u2229','Cap':'\u22D2','capand':'\u2A44','capbrcup':'\u2A49','capcap':'\u2A4B','capcup':'\u2A47','capdot':'\u2A40','CapitalDifferentialD':'\u2145','caps':'\u2229\uFE00','caret':'\u2041','caron':'\u02C7','Cayleys':'\u212D','ccaps':'\u2A4D','ccaron':'\u010D','Ccaron':'\u010C','ccedil':'\xE7','Ccedil':'\xC7','ccirc':'\u0109','Ccirc':'\u0108','Cconint':'
		var decodeMapLegacy = {'aacute':'\xE1','Aacute':'\xC1','acirc':'\xE2','Acirc':'\xC2','acute':'\xB4','aelig':'\xE6','AElig':'\xC6','agrave':'\xE0','Agrave':'\xC0','amp':'&','AMP':'&','aring':'\xE5','Aring':'\xC5','atilde':'\xE3','Atilde':'\xC3','auml':'\xE4','Auml':'\xC4','brvbar':'\xA6','ccedil':'\xE7','Ccedil':'\xC7','cedil':'\xB8','cent':'\xA2','copy':'\xA9','COPY':'\xA9','curren':'\xA4','deg':'\xB0','divide':'\xF7','eacute':'\xE9','Eacute':'\xC9','ecirc':'\xEA','Ecirc':'\xCA','egrave':'\xE8','Egrave':'\xC8','eth':'\xF0','ETH':'\xD0','euml':'\xEB','Euml':'\xCB','frac12':'\xBD','frac14':'\xBC','frac34':'\xBE','gt':'>','GT':'>','iacute':'\xED','Iacute':'\xCD','icirc':'\xEE','Icirc':'\xCE','iexcl':'\xA1','igrave':'\xEC','Igrave':'\xCC','iquest':'\xBF','iuml':'\xEF','Iuml':'\xCF','laquo':'\xAB','lt':'<','LT':'<','macr':'\xAF','micro':'\xB5','middot':'\xB7','nbsp':'\xA0','not':'\xAC','ntilde':'\xF1','Ntilde':'\xD1','oacute':'\xF3','Oacute':'\xD3','ocirc':'\xF4','Ocirc':'\xD4','ograve':'\xF2','Ograve':'\xD2','ordf':'\xAA','ordm':'\xBA','oslash':'\xF8','Oslash':'\xD8','otilde':'\xF5','Otilde':'\xD5','ouml':'\xF6','Ouml':'\xD6','para':'\xB6','plusmn':'\xB1','pound':'\xA3','quot':'"','QUOT':'"','raquo':'\xBB','reg':'\xAE','REG':'\xAE','sect':'\xA7','shy':'\xAD','sup1':'\xB9','sup2':'\xB2','sup3':'\xB3','szlig':'\xDF','thorn':'\xFE','THORN':'\xDE','times':'\xD7','uacute':'\xFA','Uacute':'\xDA','ucirc':'\xFB','Ucirc':'\xDB','ugrave':'\xF9','Ugrave':'\xD9','uml':'\xA8','uuml':'\xFC','Uuml':'\xDC','yacute':'\xFD','Yacute':'\xDD','yen':'\xA5','yuml':'\xFF'};
		var decodeMapNumeric = {'0':'\uFFFD','128':'\u20AC','130':'\u201A','131':'\u0192','132':'\u201E','133':'\u2026','134':'\u2020','135':'\u2021','136':'\u02C6','137':'\u2030','138':'\u0160','139':'\u2039','140':'\u0152','142':'\u017D','145':'\u2018','146':'\u2019','147':'\u201C','148':'\u201D','149':'\u2022','150':'\u2013','151':'\u2014','152':'\u02DC','153':'\u2122','154':'\u0161','155':'\u203A','156':'\u0153','158':'\u017E','159':'\u0178'};
		var invalidReferenceCodePoints = [1,2,3,4,5,6,7,8,11,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,64976,64977,64978,64979,64980,64981,64982,64983,64984,64985,64986,64987,64988,64989,64990,64991,64992,64993,64994,64995,64996,64997,64998,64999,65000,65001,65002,65003,65004,65005,65006,65007,65534,65535,131070,131071,196606,196607,262142,262143,327678,327679,393214,393215,458750,458751,524286,524287,589822,589823,655358,655359,720894,720895,786430,786431,851966,851967,917502,917503,983038,983039,1048574,1048575,1114110,1114111];

		/*--------------------------------------------------------------------------*/

		var stringFromCharCode = String.fromCharCode;

		var object = {};
		var hasOwnProperty = object.hasOwnProperty;
		var has = function(object, propertyName) {
			return hasOwnProperty.call(object, propertyName);
		};

		var contains = function(array, value) {
			var index = -1;
			var length = array.length;
			while (++index < length) {
				if (array[index] == value) {
					return true;
				}
			}
			return false;
		};

		var merge = function(options, defaults) {
			if (!options) {
				return defaults;
			}
			var result = {};
			var key;
			for (key in defaults) {
				// A `hasOwnProperty` check is not needed here, since only recognized
				// option names are used anyway. Any others are ignored.
				result[key] = has(options, key) ? options[key] : defaults[key];
			}
			return result;
		};

		// Modified version of `ucs2encode`; see https://mths.be/punycode.
		var codePointToSymbol = function(codePoint, strict) {
			var output = '';
			if ((codePoint >= 0xD800 && codePoint <= 0xDFFF) || codePoint > 0x10FFFF) {
				// See issue #4:
				// “Otherwise, if the number is in the range 0xD800 to 0xDFFF or is
				// greater than 0x10FFFF, then this is a parse error. Return a U+FFFD
				// REPLACEMENT CHARACTER.”
				if (strict) {
					parseError('character reference outside the permissible Unicode range');
				}
				return '\uFFFD';
			}
			if (has(decodeMapNumeric, codePoint)) {
				if (strict) {
					parseError('disallowed character reference');
				}
				return decodeMapNumeric[codePoint];
			}
			if (strict && contains(invalidReferenceCodePoints, codePoint)) {
				parseError('disallowed character reference');
			}
			if (codePoint > 0xFFFF) {
				codePoint -= 0x10000;
				output += stringFromCharCode(codePoint >>> 10 & 0x3FF | 0xD800);
				codePoint = 0xDC00 | codePoint & 0x3FF;
			}
			output += stringFromCharCode(codePoint);
			return output;
		};

		var hexEscape = function(codePoint) {
			return '&#x' + codePoint.toString(16).toUpperCase() + ';';
		};

		var decEscape = function(codePoint) {
			return '&#' + codePoint + ';';
		};

		var parseError = function(message) {
			throw Error('Parse error: ' + message);
		};

		/*--------------------------------------------------------------------------*/

		var encode = function(string, options) {
			options = merge(options, encode.options);
			var strict = options.strict;
			if (strict && regexInvalidRawCodePoint.test(string)) {
				parseError('forbidden code point');
			}
			var encodeEverything = options.encodeEverything;
			var useNamedReferences = options.useNamedReferences;
			var allowUnsafeSymbols = options.allowUnsafeSymbols;
			var escapeCodePoint = options.decimal ? decEscape : hexEscape;

			var escapeBmpSymbol = function(symbol) {
				return escapeCodePoint(symbol.charCodeAt(0));
			};

			if (encodeEverything) {
				// Encode ASCII symbols.
				string = string.replace(regexAsciiWhitelist, function(symbol) {
					// Use named references if requested & possible.
					if (useNamedReferences && has(encodeMap, symbol)) {
						return '&' + encodeMap[symbol] + ';';
					}
					return escapeBmpSymbol(symbol);
				});
				// Shorten a few escapes that represent two symbols, of which at least one
				// is within the ASCII range.
				if (useNamedReferences) {
					string = string
						.replace(/&gt;\u20D2/g, '&nvgt;')
						.replace(/&lt;\u20D2/g, '&nvlt;')
						.replace(/&#x66;&#x6A;/g, '&fjlig;');
				}
				// Encode non-ASCII symbols.
				if (useNamedReferences) {
					// Encode non-ASCII symbols that can be replaced with a named reference.
					string = string.replace(regexEncodeNonAscii, function(string) {
						// Note: there is no need to check `has(encodeMap, string)` here.
						return '&' + encodeMap[string] + ';';
					});
				}
				// Note: any remaining non-ASCII symbols are handled outside of the `if`.
			} else if (useNamedReferences) {
				// Apply named character references.
				// Encode `<>"'&` using named character references.
				if (!allowUnsafeSymbols) {
					string = string.replace(regexEscape, function(string) {
						return '&' + encodeMap[string] + ';'; // no need to check `has()` here
					});
				}
				// Shorten escapes that represent two symbols, of which at least one is
				// `<>"'&`.
				string = string
					.replace(/&gt;\u20D2/g, '&nvgt;')
					.replace(/&lt;\u20D2/g, '&nvlt;');
				// Encode non-ASCII symbols that can be replaced with a named reference.
				string = string.replace(regexEncodeNonAscii, function(string) {
					// Note: there is no need to check `has(encodeMap, string)` here.
					return '&' + encodeMap[string] + ';';
				});
			} else if (!allowUnsafeSymbols) {
				// Encode `<>"'&` using hexadecimal escapes, now that they’re not handled
				// using named character references.
				string = string.replace(regexEscape, escapeBmpSymbol);
			}
			return string
				// Encode astral symbols.
				.replace(regexAstralSymbols, function($0) {
					// https://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
					var high = $0.charCodeAt(0);
					var low = $0.charCodeAt(1);
					var codePoint = (high - 0xD800) * 0x400 + low - 0xDC00 + 0x10000;
					return escapeCodePoint(codePoint);
				})
				// Encode any remaining BMP symbols that are not printable ASCII symbols
				// using a hexadecimal escape.
				.replace(regexBmpWhitelist, escapeBmpSymbol);
		};
		// Expose default options (so they can be overridden globally).
		encode.options = {
			'allowUnsafeSymbols': false,
			'encodeEverything': false,
			'strict': false,
			'useNamedReferences': false,
			'decimal' : false
		};

		var decode = function(html, options) {
			options = merge(options, decode.options);
			var strict = options.strict;
			if (strict && regexInvalidEntity.test(html)) {
				parseError('malformed character reference');
			}
			return html.replace(regexDecode, function($0, $1, $2, $3, $4, $5, $6, $7, $8) {
				var codePoint;
				var semicolon;
				var decDigits;
				var hexDigits;
				var reference;
				var next;

				if ($1) {
					reference = $1;
					// Note: there is no need to check `has(decodeMap, reference)`.
					return decodeMap[reference];
				}

				if ($2) {
					// Decode named character references without trailing `;`, e.g. `&amp`.
					// This is only a parse error if it gets converted to `&`, or if it is
					// followed by `=` in an attribute context.
					reference = $2;
					next = $3;
					if (next && options.isAttributeValue) {
						if (strict && next == '=') {
							parseError('`&` did not start a character reference');
						}
						return $0;
					} else {
						if (strict) {
							parseError(
								'named character reference was not terminated by a semicolon'
							);
						}
						// Note: there is no need to check `has(decodeMapLegacy, reference)`.
						return decodeMapLegacy[reference] + (next || '');
					}
				}

				if ($4) {
					// Decode decimal escapes, e.g. `&#119558;`.
					decDigits = $4;
					semicolon = $5;
					if (strict && !semicolon) {
						parseError('character reference was not terminated by a semicolon');
					}
					codePoint = parseInt(decDigits, 10);
					return codePointToSymbol(codePoint, strict);
				}

				if ($6) {
					// Decode hexadecimal escapes, e.g. `&#x1D306;`.
					hexDigits = $6;
					semicolon = $7;
					if (strict && !semicolon) {
						parseError('character reference was not terminated by a semicolon');
					}
					codePoint = parseInt(hexDigits, 16);
					return codePointToSymbol(codePoint, strict);
				}

				// If we’re still here, `if ($7)` is implied; it’s an ambiguous
				// ampersand for sure. https://mths.be/notes/ambiguous-ampersands
				if (strict) {
					parseError(
						'named character reference was not terminated by a semicolon'
					);
				}
				return $0;
			});
		};
		// Expose default options (so they can be overridden globally).
		decode.options = {
			'isAttributeValue': false,
			'strict': false
		};

		var escape = function(string) {
			return string.replace(regexEscape, function($0) {
				// Note: there is no need to check `has(escapeMap, $0)` here.
				return escapeMap[$0];
			});
		};

		/*--------------------------------------------------------------------------*/

		var he = {
			'version': '1.2.0',
			'encode': encode,
			'decode': decode,
			'escape': escape,
			'unescape': decode
		};

		// Some AMD build optimizers, like r.js, check for specific condition patterns
		// like the following:
		if (freeExports && !freeExports.nodeType) {
			if (freeModule) { // in Node.js, io.js, or RingoJS v0.8.0+
				freeModule.exports = he;
			} else { // in Narwhal or RingoJS v0.7.0-
				for (var key in he) {
					has(he, key) && (freeExports[key] = he[key]);
				}
			}
		} else { // in Rhino or a web browser
			root.he = he;
		}

	}(commonjsGlobal));
} (he$1, he$1.exports));

var he = he$1.exports;

/**
 * Cross-platform code generation for component v-model
 */
function genComponentModel(el, value, modifiers) {
    const { number, trim } = modifiers || {};
    const baseValueExpression = '$$v';
    let valueExpression = baseValueExpression;
    if (trim) {
        valueExpression =
            `(typeof ${baseValueExpression} === 'string'` +
                `? ${baseValueExpression}.trim()` +
                `: ${baseValueExpression})`;
    }
    if (number) {
        valueExpression = `_n(${valueExpression})`;
    }
    const assignment = genAssignmentCode(value, valueExpression);
    el.model = {
        value: `(${value})`,
        expression: JSON.stringify(value),
        callback: `function (${baseValueExpression}) {${assignment}}`
    };
}
/**
 * Cross-platform codegen helper for generating v-model value assignment code.
 */
function genAssignmentCode(value, assignment) {
    const res = parseModel(value);
    if (res.key === null) {
        return `${value}=${assignment}`;
    }
    else {
        return `$set(${res.exp}, ${res.key}, ${assignment})`;
    }
}
/**
 * Parse a v-model expression into a base path and a final key segment.
 * Handles both dot-path and possible square brackets.
 *
 * Possible cases:
 *
 * - test
 * - test[key]
 * - test[test1[key]]
 * - test["a"][key]
 * - xxx.test[a[a].test1[key]]
 * - test.xxx.a["asa"][test1[key]]
 *
 */
let len, str$1, chr, index, expressionPos, expressionEndPos;
function parseModel(val) {
    // Fix https://github.com/vuejs/vue/pull/7730
    // allow v-model="obj.val " (trailing whitespace)
    val = val.trim();
    len = val.length;
    if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
        index = val.lastIndexOf('.');
        if (index > -1) {
            return {
                exp: val.slice(0, index),
                key: '"' + val.slice(index + 1) + '"'
            };
        }
        else {
            return {
                exp: val,
                key: null
            };
        }
    }
    str$1 = val;
    index = expressionPos = expressionEndPos = 0;
    while (!eof()) {
        chr = next();
        /* istanbul ignore if */
        if (isStringStart(chr)) {
            parseString(chr);
        }
        else if (chr === 0x5b) {
            parseBracket(chr);
        }
    }
    return {
        exp: val.slice(0, expressionPos),
        key: val.slice(expressionPos + 1, expressionEndPos)
    };
}
function next() {
    return str$1.charCodeAt(++index);
}
function eof() {
    return index >= len;
}
function isStringStart(chr) {
    return chr === 0x22 || chr === 0x27;
}
function parseBracket(chr) {
    let inBracket = 1;
    expressionPos = index;
    while (!eof()) {
        chr = next();
        if (isStringStart(chr)) {
            parseString(chr);
            continue;
        }
        if (chr === 0x5b)
            inBracket++;
        if (chr === 0x5d)
            inBracket--;
        if (inBracket === 0) {
            expressionEndPos = index;
            break;
        }
    }
}
function parseString(chr) {
    const stringQuote = chr;
    while (!eof()) {
        chr = next();
        if (chr === stringQuote) {
            break;
        }
    }
}

const onRE = /^@|^v-on:/;
const dirRE = /^v-|^@|^:|^#/;
const forAliasRE$1 = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
const forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
const stripParensRE = /^\(|\)$/g;
const dynamicArgRE = /^\[.*\]$/;
const argRE = /:(.*)$/;
const bindRE = /^:|^\.|^v-bind:/;
const modifierRE = /\.[^.\]]+(?=[^\]]*$)/g;
const slotRE = /^v-slot(:|$)|^#/;
const lineBreakRE = /[\r\n]/;
const whitespaceRE = /[ \f\t\r\n]+/g;
const invalidAttributeRE = /[\s"'<>\/=]/;
const decodeHTMLCached = cached(he.decode);
const emptySlotScopeToken = `_empty_`;
// configurable state
let warn$2;
let delimiters;
let transforms;
let preTransforms;
let postTransforms;
let platformIsPreTag;
let platformMustUseProp;
let platformGetTagNamespace;
let maybeComponent;
function createASTElement(tag, attrs, parent) {
    return {
        type: 1,
        tag,
        attrsList: attrs,
        attrsMap: makeAttrsMap(attrs),
        rawAttrsMap: {},
        parent,
        children: []
    };
}
/**
 * Convert HTML string to AST.
 */
function parse$1(template, options) {
    warn$2 = options.warn || baseWarn;
    platformIsPreTag = options.isPreTag || no;
    platformMustUseProp = options.mustUseProp || no;
    platformGetTagNamespace = options.getTagNamespace || no;
    const isReservedTag = options.isReservedTag || no;
    maybeComponent = (el) => !!(el.component ||
        el.attrsMap[':is'] ||
        el.attrsMap['v-bind:is'] ||
        !(el.attrsMap.is ? isReservedTag(el.attrsMap.is) : isReservedTag(el.tag)));
    transforms = pluckModuleFunction(options.modules, 'transformNode');
    preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
    postTransforms = pluckModuleFunction(options.modules, 'postTransformNode');
    delimiters = options.delimiters;
    const stack = [];
    const preserveWhitespace = options.preserveWhitespace !== false;
    const whitespaceOption = options.whitespace;
    let root;
    let currentParent;
    let inVPre = false;
    let inPre = false;
    let warned = false;
    function warnOnce(msg, range) {
        if (!warned) {
            warned = true;
            warn$2(msg, range);
        }
    }
    function closeElement(element) {
        trimEndingWhitespace(element);
        if (!inVPre && !element.processed) {
            element = processElement(element, options);
        }
        // tree management
        if (!stack.length && element !== root) {
            // allow root elements with v-if, v-else-if and v-else
            if (root.if && (element.elseif || element.else)) {
                if (process.env.NODE_ENV !== 'production') {
                    checkRootConstraints(element);
                }
                addIfCondition(root, {
                    exp: element.elseif,
                    block: element
                });
            }
            else if (process.env.NODE_ENV !== 'production') {
                warnOnce(`Component template should contain exactly one root element. ` +
                    `If you are using v-if on multiple elements, ` +
                    `use v-else-if to chain them instead.`, { start: element.start });
            }
        }
        if (currentParent && !element.forbidden) {
            if (element.elseif || element.else) {
                processIfConditions(element, currentParent);
            }
            else {
                if (element.slotScope) {
                    // scoped slot
                    // keep it in the children list so that v-else(-if) conditions can
                    // find it as the prev node.
                    const name = element.slotTarget || '"default"';
                    (currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
                }
                currentParent.children.push(element);
                element.parent = currentParent;
            }
        }
        // final children cleanup
        // filter out scoped slots
        element.children = element.children.filter(c => !c.slotScope);
        // remove trailing whitespace node again
        trimEndingWhitespace(element);
        // check pre state
        if (element.pre) {
            inVPre = false;
        }
        if (platformIsPreTag(element.tag)) {
            inPre = false;
        }
        // apply post-transforms
        for (let i = 0; i < postTransforms.length; i++) {
            postTransforms[i](element, options);
        }
    }
    function trimEndingWhitespace(el) {
        // remove trailing whitespace node
        if (!inPre) {
            let lastNode;
            while ((lastNode = el.children[el.children.length - 1]) &&
                lastNode.type === 3 &&
                lastNode.text === ' ') {
                el.children.pop();
            }
        }
    }
    function checkRootConstraints(el) {
        if (el.tag === 'slot' || el.tag === 'template') {
            warnOnce(`Cannot use <${el.tag}> as component root element because it may ` +
                'contain multiple nodes.', { start: el.start });
        }
        if (el.attrsMap.hasOwnProperty('v-for')) {
            warnOnce('Cannot use v-for on stateful component root element because ' +
                'it renders multiple elements.', el.rawAttrsMap['v-for']);
        }
    }
    parseHTML(template, {
        warn: warn$2,
        expectHTML: options.expectHTML,
        isUnaryTag: options.isUnaryTag,
        canBeLeftOpenTag: options.canBeLeftOpenTag,
        shouldDecodeNewlines: options.shouldDecodeNewlines,
        shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
        shouldKeepComment: options.comments,
        outputSourceRange: options.outputSourceRange,
        start(tag, attrs, unary, start, end) {
            // check namespace.
            // inherit parent ns if there is one
            const ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
            // handle IE svg bug
            /* istanbul ignore if */
            if (isIE && ns === 'svg') {
                attrs = guardIESVGBug(attrs);
            }
            let element = createASTElement(tag, attrs, currentParent);
            if (ns) {
                element.ns = ns;
            }
            if (process.env.NODE_ENV !== 'production') {
                if (options.outputSourceRange) {
                    element.start = start;
                    element.end = end;
                    element.rawAttrsMap = element.attrsList.reduce((cumulated, attr) => {
                        cumulated[attr.name] = attr;
                        return cumulated;
                    }, {});
                }
                attrs.forEach(attr => {
                    if (invalidAttributeRE.test(attr.name)) {
                        warn$2(`Invalid dynamic argument expression: attribute names cannot contain ` +
                            `spaces, quotes, <, >, / or =.`, options.outputSourceRange
                            ? {
                                start: attr.start + attr.name.indexOf(`[`),
                                end: attr.start + attr.name.length
                            }
                            : undefined);
                    }
                });
            }
            if (isForbiddenTag(element) && !isServerRendering()) {
                element.forbidden = true;
                process.env.NODE_ENV !== 'production' &&
                    warn$2('Templates should only be responsible for mapping the state to the ' +
                        'UI. Avoid placing tags with side-effects in your templates, such as ' +
                        `<${tag}>` +
                        ', as they will not be parsed.', { start: element.start });
            }
            // apply pre-transforms
            for (let i = 0; i < preTransforms.length; i++) {
                element = preTransforms[i](element, options) || element;
            }
            if (!inVPre) {
                processPre(element);
                if (element.pre) {
                    inVPre = true;
                }
            }
            if (platformIsPreTag(element.tag)) {
                inPre = true;
            }
            if (inVPre) {
                processRawAttrs(element);
            }
            else if (!element.processed) {
                // structural directives
                processFor(element);
                processIf(element);
                processOnce(element);
            }
            if (!root) {
                root = element;
                if (process.env.NODE_ENV !== 'production') {
                    checkRootConstraints(root);
                }
            }
            if (!unary) {
                currentParent = element;
                stack.push(element);
            }
            else {
                closeElement(element);
            }
        },
        end(tag, start, end) {
            const element = stack[stack.length - 1];
            // pop stack
            stack.length -= 1;
            currentParent = stack[stack.length - 1];
            if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
                element.end = end;
            }
            closeElement(element);
        },
        chars(text, start, end) {
            if (!currentParent) {
                if (process.env.NODE_ENV !== 'production') {
                    if (text === template) {
                        warnOnce('Component template requires a root element, rather than just text.', { start });
                    }
                    else if ((text = text.trim())) {
                        warnOnce(`text "${text}" outside root element will be ignored.`, {
                            start
                        });
                    }
                }
                return;
            }
            // IE textarea placeholder bug
            /* istanbul ignore if */
            if (isIE &&
                currentParent.tag === 'textarea' &&
                currentParent.attrsMap.placeholder === text) {
                return;
            }
            const children = currentParent.children;
            if (inPre || text.trim()) {
                text = isTextTag(currentParent)
                    ? text
                    : decodeHTMLCached(text);
            }
            else if (!children.length) {
                // remove the whitespace-only node right after an opening tag
                text = '';
            }
            else if (whitespaceOption) {
                if (whitespaceOption === 'condense') {
                    // in condense mode, remove the whitespace node if it contains
                    // line break, otherwise condense to a single space
                    text = lineBreakRE.test(text) ? '' : ' ';
                }
                else {
                    text = ' ';
                }
            }
            else {
                text = preserveWhitespace ? ' ' : '';
            }
            if (text) {
                if (!inPre && whitespaceOption === 'condense') {
                    // condense consecutive whitespaces into single space
                    text = text.replace(whitespaceRE, ' ');
                }
                let res;
                let child;
                if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
                    child = {
                        type: 2,
                        expression: res.expression,
                        tokens: res.tokens,
                        text
                    };
                }
                else if (text !== ' ' ||
                    !children.length ||
                    children[children.length - 1].text !== ' ') {
                    child = {
                        type: 3,
                        text
                    };
                }
                if (child) {
                    if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
                        child.start = start;
                        child.end = end;
                    }
                    children.push(child);
                }
            }
        },
        comment(text, start, end) {
            // adding anything as a sibling to the root node is forbidden
            // comments should still be allowed, but ignored
            if (currentParent) {
                const child = {
                    type: 3,
                    text,
                    isComment: true
                };
                if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
                    child.start = start;
                    child.end = end;
                }
                currentParent.children.push(child);
            }
        }
    });
    return root;
}
function processPre(el) {
    if (getAndRemoveAttr(el, 'v-pre') != null) {
        el.pre = true;
    }
}
function processRawAttrs(el) {
    const list = el.attrsList;
    const len = list.length;
    if (len) {
        const attrs = (el.attrs = new Array(len));
        for (let i = 0; i < len; i++) {
            attrs[i] = {
                name: list[i].name,
                value: JSON.stringify(list[i].value)
            };
            if (list[i].start != null) {
                attrs[i].start = list[i].start;
                attrs[i].end = list[i].end;
            }
        }
    }
    else if (!el.pre) {
        // non root node in pre blocks with no attributes
        el.plain = true;
    }
}
function processElement(element, options) {
    processKey(element);
    // determine whether this is a plain element after
    // removing structural attributes
    element.plain =
        !element.key && !element.scopedSlots && !element.attrsList.length;
    processRef(element);
    processSlotContent(element);
    processSlotOutlet(element);
    processComponent(element);
    for (let i = 0; i < transforms.length; i++) {
        element = transforms[i](element, options) || element;
    }
    processAttrs(element);
    return element;
}
function processKey(el) {
    const exp = getBindingAttr(el, 'key');
    if (exp) {
        if (process.env.NODE_ENV !== 'production') {
            if (el.tag === 'template') {
                warn$2(`<template> cannot be keyed. Place the key on real elements instead.`, getRawBindingAttr(el, 'key'));
            }
            if (el.for) {
                const iterator = el.iterator2 || el.iterator1;
                const parent = el.parent;
                if (iterator &&
                    iterator === exp &&
                    parent &&
                    parent.tag === 'transition-group') {
                    warn$2(`Do not use v-for index as key on <transition-group> children, ` +
                        `this is the same as not using keys.`, getRawBindingAttr(el, 'key'), true /* tip */);
                }
            }
        }
        el.key = exp;
    }
}
function processRef(el) {
    const ref = getBindingAttr(el, 'ref');
    if (ref) {
        el.ref = ref;
        el.refInFor = checkInFor(el);
    }
}
function processFor(el) {
    let exp;
    if ((exp = getAndRemoveAttr(el, 'v-for'))) {
        const res = parseFor(exp);
        if (res) {
            extend(el, res);
        }
        else if (process.env.NODE_ENV !== 'production') {
            warn$2(`Invalid v-for expression: ${exp}`, el.rawAttrsMap['v-for']);
        }
    }
}
function parseFor(exp) {
    const inMatch = exp.match(forAliasRE$1);
    if (!inMatch)
        return;
    const res = {};
    res.for = inMatch[2].trim();
    const alias = inMatch[1].trim().replace(stripParensRE, '');
    const iteratorMatch = alias.match(forIteratorRE);
    if (iteratorMatch) {
        res.alias = alias.replace(forIteratorRE, '').trim();
        res.iterator1 = iteratorMatch[1].trim();
        if (iteratorMatch[2]) {
            res.iterator2 = iteratorMatch[2].trim();
        }
    }
    else {
        res.alias = alias;
    }
    return res;
}
function processIf(el) {
    const exp = getAndRemoveAttr(el, 'v-if');
    if (exp) {
        el.if = exp;
        addIfCondition(el, {
            exp: exp,
            block: el
        });
    }
    else {
        if (getAndRemoveAttr(el, 'v-else') != null) {
            el.else = true;
        }
        const elseif = getAndRemoveAttr(el, 'v-else-if');
        if (elseif) {
            el.elseif = elseif;
        }
    }
}
function processIfConditions(el, parent) {
    const prev = findPrevElement(parent.children);
    if (prev && prev.if) {
        addIfCondition(prev, {
            exp: el.elseif,
            block: el
        });
    }
    else if (process.env.NODE_ENV !== 'production') {
        warn$2(`v-${el.elseif ? 'else-if="' + el.elseif + '"' : 'else'} ` +
            `used on element <${el.tag}> without corresponding v-if.`, el.rawAttrsMap[el.elseif ? 'v-else-if' : 'v-else']);
    }
}
function findPrevElement(children) {
    let i = children.length;
    while (i--) {
        if (children[i].type === 1) {
            return children[i];
        }
        else {
            if (process.env.NODE_ENV !== 'production' && children[i].text !== ' ') {
                warn$2(`text "${children[i].text.trim()}" between v-if and v-else(-if) ` +
                    `will be ignored.`, children[i]);
            }
            children.pop();
        }
    }
}
function addIfCondition(el, condition) {
    if (!el.ifConditions) {
        el.ifConditions = [];
    }
    el.ifConditions.push(condition);
}
function processOnce(el) {
    const once = getAndRemoveAttr(el, 'v-once');
    if (once != null) {
        el.once = true;
    }
}
// handle content being passed to a component as slot,
// e.g. <template slot="xxx">, <div slot-scope="xxx">
function processSlotContent(el) {
    let slotScope;
    if (el.tag === 'template') {
        slotScope = getAndRemoveAttr(el, 'scope');
        /* istanbul ignore if */
        if (process.env.NODE_ENV !== 'production' && slotScope) {
            warn$2(`the "scope" attribute for scoped slots have been deprecated and ` +
                `replaced by "slot-scope" since 2.5. The new "slot-scope" attribute ` +
                `can also be used on plain elements in addition to <template> to ` +
                `denote scoped slots.`, el.rawAttrsMap['scope'], true);
        }
        el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
    }
    else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
        /* istanbul ignore if */
        if (process.env.NODE_ENV !== 'production' && el.attrsMap['v-for']) {
            warn$2(`Ambiguous combined usage of slot-scope and v-for on <${el.tag}> ` +
                `(v-for takes higher priority). Use a wrapper <template> for the ` +
                `scoped slot to make it clearer.`, el.rawAttrsMap['slot-scope'], true);
        }
        el.slotScope = slotScope;
    }
    // slot="xxx"
    const slotTarget = getBindingAttr(el, 'slot');
    if (slotTarget) {
        el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
        el.slotTargetDynamic = !!(el.attrsMap[':slot'] || el.attrsMap['v-bind:slot']);
        // preserve slot as an attribute for native shadow DOM compat
        // only for non-scoped slots.
        if (el.tag !== 'template' && !el.slotScope) {
            addAttr(el, 'slot', slotTarget, getRawBindingAttr(el, 'slot'));
        }
    }
    // 2.6 v-slot syntax
    {
        if (el.tag === 'template') {
            // v-slot on <template>
            const slotBinding = getAndRemoveAttrByRegex(el, slotRE);
            if (slotBinding) {
                if (process.env.NODE_ENV !== 'production') {
                    if (el.slotTarget || el.slotScope) {
                        warn$2(`Unexpected mixed usage of different slot syntaxes.`, el);
                    }
                    if (el.parent && !maybeComponent(el.parent)) {
                        warn$2(`<template v-slot> can only appear at the root level inside ` +
                            `the receiving component`, el);
                    }
                }
                const { name, dynamic } = getSlotName(slotBinding);
                el.slotTarget = name;
                el.slotTargetDynamic = dynamic;
                el.slotScope = slotBinding.value || emptySlotScopeToken; // force it into a scoped slot for perf
            }
        }
        else {
            // v-slot on component, denotes default slot
            const slotBinding = getAndRemoveAttrByRegex(el, slotRE);
            if (slotBinding) {
                if (process.env.NODE_ENV !== 'production') {
                    if (!maybeComponent(el)) {
                        warn$2(`v-slot can only be used on components or <template>.`, slotBinding);
                    }
                    if (el.slotScope || el.slotTarget) {
                        warn$2(`Unexpected mixed usage of different slot syntaxes.`, el);
                    }
                    if (el.scopedSlots) {
                        warn$2(`To avoid scope ambiguity, the default slot should also use ` +
                            `<template> syntax when there are other named slots.`, slotBinding);
                    }
                }
                // add the component's children to its default slot
                const slots = el.scopedSlots || (el.scopedSlots = {});
                const { name, dynamic } = getSlotName(slotBinding);
                const slotContainer = (slots[name] = createASTElement('template', [], el));
                slotContainer.slotTarget = name;
                slotContainer.slotTargetDynamic = dynamic;
                slotContainer.children = el.children.filter((c) => {
                    if (!c.slotScope) {
                        c.parent = slotContainer;
                        return true;
                    }
                });
                slotContainer.slotScope = slotBinding.value || emptySlotScopeToken;
                // remove children as they are returned from scopedSlots now
                el.children = [];
                // mark el non-plain so data gets generated
                el.plain = false;
            }
        }
    }
}
function getSlotName(binding) {
    let name = binding.name.replace(slotRE, '');
    if (!name) {
        if (binding.name[0] !== '#') {
            name = 'default';
        }
        else if (process.env.NODE_ENV !== 'production') {
            warn$2(`v-slot shorthand syntax requires a slot name.`, binding);
        }
    }
    return dynamicArgRE.test(name)
        ? // dynamic [name]
            { name: name.slice(1, -1), dynamic: true }
        : // static name
            { name: `"${name}"`, dynamic: false };
}
// handle <slot/> outlets
function processSlotOutlet(el) {
    if (el.tag === 'slot') {
        el.slotName = getBindingAttr(el, 'name');
        if (process.env.NODE_ENV !== 'production' && el.key) {
            warn$2(`\`key\` does not work on <slot> because slots are abstract outlets ` +
                `and can possibly expand into multiple elements. ` +
                `Use the key on a wrapping element instead.`, getRawBindingAttr(el, 'key'));
        }
    }
}
function processComponent(el) {
    let binding;
    if ((binding = getBindingAttr(el, 'is'))) {
        el.component = binding;
    }
    if (getAndRemoveAttr(el, 'inline-template') != null) {
        el.inlineTemplate = true;
    }
}
function processAttrs(el) {
    const list = el.attrsList;
    let i, l, name, rawName, value, modifiers, syncGen, isDynamic;
    for (i = 0, l = list.length; i < l; i++) {
        name = rawName = list[i].name;
        value = list[i].value;
        if (dirRE.test(name)) {
            // mark element as dynamic
            el.hasBindings = true;
            // modifiers
            modifiers = parseModifiers(name.replace(dirRE, ''));
            // support .foo shorthand syntax for the .prop modifier
            if (modifiers) {
                name = name.replace(modifierRE, '');
            }
            if (bindRE.test(name)) {
                // v-bind
                name = name.replace(bindRE, '');
                value = parseFilters(value);
                isDynamic = dynamicArgRE.test(name);
                if (isDynamic) {
                    name = name.slice(1, -1);
                }
                if (process.env.NODE_ENV !== 'production' && value.trim().length === 0) {
                    warn$2(`The value for a v-bind expression cannot be empty. Found in "v-bind:${name}"`);
                }
                if (modifiers) {
                    if (modifiers.prop && !isDynamic) {
                        name = camelize(name);
                        if (name === 'innerHtml')
                            name = 'innerHTML';
                    }
                    if (modifiers.camel && !isDynamic) {
                        name = camelize(name);
                    }
                    if (modifiers.sync) {
                        syncGen = genAssignmentCode(value, `$event`);
                        if (!isDynamic) {
                            addHandler(el, `update:${camelize(name)}`, syncGen, null, false, warn$2, list[i]);
                            if (hyphenate(name) !== camelize(name)) {
                                addHandler(el, `update:${hyphenate(name)}`, syncGen, null, false, warn$2, list[i]);
                            }
                        }
                        else {
                            // handler w/ dynamic event name
                            addHandler(el, `"update:"+(${name})`, syncGen, null, false, warn$2, list[i], true // dynamic
                            );
                        }
                    }
                }
                if ((modifiers && modifiers.prop) ||
                    (!el.component && platformMustUseProp(el.tag, el.attrsMap.type, name))) {
                    addProp(el, name, value, list[i], isDynamic);
                }
                else {
                    addAttr(el, name, value, list[i], isDynamic);
                }
            }
            else if (onRE.test(name)) {
                // v-on
                name = name.replace(onRE, '');
                isDynamic = dynamicArgRE.test(name);
                if (isDynamic) {
                    name = name.slice(1, -1);
                }
                addHandler(el, name, value, modifiers, false, warn$2, list[i], isDynamic);
            }
            else {
                // normal directives
                name = name.replace(dirRE, '');
                // parse arg
                const argMatch = name.match(argRE);
                let arg = argMatch && argMatch[1];
                isDynamic = false;
                if (arg) {
                    name = name.slice(0, -(arg.length + 1));
                    if (dynamicArgRE.test(arg)) {
                        arg = arg.slice(1, -1);
                        isDynamic = true;
                    }
                }
                addDirective(el, name, rawName, value, arg, isDynamic, modifiers, list[i]);
                if (process.env.NODE_ENV !== 'production' && name === 'model') {
                    checkForAliasModel(el, value);
                }
            }
        }
        else {
            // literal attribute
            if (process.env.NODE_ENV !== 'production') {
                const res = parseText(value, delimiters);
                if (res) {
                    warn$2(`${name}="${value}": ` +
                        'Interpolation inside attributes has been removed. ' +
                        'Use v-bind or the colon shorthand instead. For example, ' +
                        'instead of <div id="{{ val }}">, use <div :id="val">.', list[i]);
                }
            }
            addAttr(el, name, JSON.stringify(value), list[i]);
            // #6887 firefox doesn't update muted state if set via attribute
            // even immediately after element creation
            if (!el.component &&
                name === 'muted' &&
                platformMustUseProp(el.tag, el.attrsMap.type, name)) {
                addProp(el, name, 'true', list[i]);
            }
        }
    }
}
function checkInFor(el) {
    let parent = el;
    while (parent) {
        if (parent.for !== undefined) {
            return true;
        }
        parent = parent.parent;
    }
    return false;
}
function parseModifiers(name) {
    const match = name.match(modifierRE);
    if (match) {
        const ret = {};
        match.forEach(m => {
            ret[m.slice(1)] = true;
        });
        return ret;
    }
}
function makeAttrsMap(attrs) {
    const map = {};
    for (let i = 0, l = attrs.length; i < l; i++) {
        if (process.env.NODE_ENV !== 'production' && map[attrs[i].name] && !isIE && !isEdge) {
            warn$2('duplicate attribute: ' + attrs[i].name, attrs[i]);
        }
        map[attrs[i].name] = attrs[i].value;
    }
    return map;
}
// for script (e.g. type="x/template") or style, do not decode content
function isTextTag(el) {
    return el.tag === 'script' || el.tag === 'style';
}
function isForbiddenTag(el) {
    return (el.tag === 'style' ||
        (el.tag === 'script' &&
            (!el.attrsMap.type || el.attrsMap.type === 'text/javascript')));
}
const ieNSBug = /^xmlns:NS\d+/;
const ieNSPrefix = /^NS\d+:/;
/* istanbul ignore next */
function guardIESVGBug(attrs) {
    const res = [];
    for (let i = 0; i < attrs.length; i++) {
        const attr = attrs[i];
        if (!ieNSBug.test(attr.name)) {
            attr.name = attr.name.replace(ieNSPrefix, '');
            res.push(attr);
        }
    }
    return res;
}
function checkForAliasModel(el, value) {
    let _el = el;
    while (_el) {
        if (_el.for && _el.alias === value) {
            warn$2(`<${el.tag} v-model="${value}">: ` +
                `You are binding v-model directly to a v-for iteration alias. ` +
                `This will not be able to modify the v-for source array because ` +
                `writing to the alias is like modifying a function local variable. ` +
                `Consider using an array of objects and use v-model on an object property instead.`, el.rawAttrsMap['v-model']);
        }
        _el = _el.parent;
    }
}

/**
 * Expand input[v-model] with dynamic type bindings into v-if-else chains
 * Turn this:
 *   <input v-model="data[type]" :type="type">
 * into this:
 *   <input v-if="type === 'checkbox'" type="checkbox" v-model="data[type]">
 *   <input v-else-if="type === 'radio'" type="radio" v-model="data[type]">
 *   <input v-else :type="type" v-model="data[type]">
 */
function preTransformNode(el, options) {
    if (el.tag === 'input') {
        const map = el.attrsMap;
        if (!map['v-model']) {
            return;
        }
        let typeBinding;
        if (map[':type'] || map['v-bind:type']) {
            typeBinding = getBindingAttr(el, 'type');
        }
        if (!map.type && !typeBinding && map['v-bind']) {
            typeBinding = `(${map['v-bind']}).type`;
        }
        if (typeBinding) {
            const ifCondition = getAndRemoveAttr(el, 'v-if', true);
            const ifConditionExtra = ifCondition ? `&&(${ifCondition})` : ``;
            const hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
            const elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
            // 1. checkbox
            const branch0 = cloneASTElement(el);
            // process for on the main node
            processFor(branch0);
            addRawAttr(branch0, 'type', 'checkbox');
            processElement(branch0, options);
            branch0.processed = true; // prevent it from double-processed
            branch0.if = `(${typeBinding})==='checkbox'` + ifConditionExtra;
            addIfCondition(branch0, {
                exp: branch0.if,
                block: branch0
            });
            // 2. add radio else-if condition
            const branch1 = cloneASTElement(el);
            getAndRemoveAttr(branch1, 'v-for', true);
            addRawAttr(branch1, 'type', 'radio');
            processElement(branch1, options);
            addIfCondition(branch0, {
                exp: `(${typeBinding})==='radio'` + ifConditionExtra,
                block: branch1
            });
            // 3. other
            const branch2 = cloneASTElement(el);
            getAndRemoveAttr(branch2, 'v-for', true);
            addRawAttr(branch2, ':type', typeBinding);
            processElement(branch2, options);
            addIfCondition(branch0, {
                exp: ifCondition,
                block: branch2
            });
            if (hasElse) {
                branch0.else = true;
            }
            else if (elseIfCondition) {
                branch0.elseif = elseIfCondition;
            }
            return branch0;
        }
    }
}
function cloneASTElement(el) {
    return createASTElement(el.tag, el.attrsList.slice(), el.parent);
}
var model$1 = {
    preTransformNode
};

var modules = [klass, style, model$1];

let warn$1;
// in some cases, the event used has to be determined at runtime
// so we used some reserved tokens during compile.
const RANGE_TOKEN = '__r';
function model(el, dir, _warn) {
    warn$1 = _warn;
    const value = dir.value;
    const modifiers = dir.modifiers;
    const tag = el.tag;
    const type = el.attrsMap.type;
    if (process.env.NODE_ENV !== 'production') {
        // inputs with type="file" are read only and setting the input's
        // value will throw an error.
        if (tag === 'input' && type === 'file') {
            warn$1(`<${el.tag} v-model="${value}" type="file">:\n` +
                `File inputs are read only. Use a v-on:change listener instead.`, el.rawAttrsMap['v-model']);
        }
    }
    if (el.component) {
        genComponentModel(el, value, modifiers);
        // component v-model doesn't need extra runtime
        return false;
    }
    else if (tag === 'select') {
        genSelect(el, value, modifiers);
    }
    else if (tag === 'input' && type === 'checkbox') {
        genCheckboxModel(el, value, modifiers);
    }
    else if (tag === 'input' && type === 'radio') {
        genRadioModel(el, value, modifiers);
    }
    else if (tag === 'input' || tag === 'textarea') {
        genDefaultModel(el, value, modifiers);
    }
    else {
        genComponentModel(el, value, modifiers);
        // component v-model doesn't need extra runtime
        return false;
    }
    // ensure runtime directive metadata
    return true;
}
function genCheckboxModel(el, value, modifiers) {
    const number = modifiers && modifiers.number;
    const valueBinding = getBindingAttr(el, 'value') || 'null';
    const trueValueBinding = getBindingAttr(el, 'true-value') || 'true';
    const falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
    addProp(el, 'checked', `Array.isArray(${value})` +
        `?_i(${value},${valueBinding})>-1` +
        (trueValueBinding === 'true'
            ? `:(${value})`
            : `:_q(${value},${trueValueBinding})`));
    addHandler(el, 'change', `var $$a=${value},` +
        '$$el=$event.target,' +
        `$$c=$$el.checked?(${trueValueBinding}):(${falseValueBinding});` +
        'if(Array.isArray($$a)){' +
        `var $$v=${number ? '_n(' + valueBinding + ')' : valueBinding},` +
        '$$i=_i($$a,$$v);' +
        `if($$el.checked){$$i<0&&(${genAssignmentCode(value, '$$a.concat([$$v])')})}` +
        `else{$$i>-1&&(${genAssignmentCode(value, '$$a.slice(0,$$i).concat($$a.slice($$i+1))')})}` +
        `}else{${genAssignmentCode(value, '$$c')}}`, null, true);
}
function genRadioModel(el, value, modifiers) {
    const number = modifiers && modifiers.number;
    let valueBinding = getBindingAttr(el, 'value') || 'null';
    valueBinding = number ? `_n(${valueBinding})` : valueBinding;
    addProp(el, 'checked', `_q(${value},${valueBinding})`);
    addHandler(el, 'change', genAssignmentCode(value, valueBinding), null, true);
}
function genSelect(el, value, modifiers) {
    const number = modifiers && modifiers.number;
    const selectedVal = `Array.prototype.filter` +
        `.call($event.target.options,function(o){return o.selected})` +
        `.map(function(o){var val = "_value" in o ? o._value : o.value;` +
        `return ${number ? '_n(val)' : 'val'}})`;
    const assignment = '$event.target.multiple ? $$selectedVal : $$selectedVal[0]';
    let code = `var $$selectedVal = ${selectedVal};`;
    code = `${code} ${genAssignmentCode(value, assignment)}`;
    addHandler(el, 'change', code, null, true);
}
function genDefaultModel(el, value, modifiers) {
    const type = el.attrsMap.type;
    // warn if v-bind:value conflicts with v-model
    // except for inputs with v-bind:type
    if (process.env.NODE_ENV !== 'production') {
        const value = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
        const typeBinding = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
        if (value && !typeBinding) {
            const binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
            warn$1(`${binding}="${value}" conflicts with v-model on the same element ` +
                'because the latter already expands to a value binding internally', el.rawAttrsMap[binding]);
        }
    }
    const { lazy, number, trim } = modifiers || {};
    const needCompositionGuard = !lazy && type !== 'range';
    const event = lazy ? 'change' : type === 'range' ? RANGE_TOKEN : 'input';
    let valueExpression = '$event.target.value';
    if (trim) {
        valueExpression = `$event.target.value.trim()`;
    }
    if (number) {
        valueExpression = `_n(${valueExpression})`;
    }
    let code = genAssignmentCode(value, valueExpression);
    if (needCompositionGuard) {
        code = `if($event.target.composing)return;${code}`;
    }
    addProp(el, 'value', `(${value})`);
    addHandler(el, event, code, null, true);
    if (trim || number) {
        addHandler(el, 'blur', '$forceUpdate()');
    }
}

function text(el, dir) {
    if (dir.value) {
        addProp(el, 'textContent', `_s(${dir.value})`, dir);
    }
}

function html(el, dir) {
    if (dir.value) {
        addProp(el, 'innerHTML', `_s(${dir.value})`, dir);
    }
}

var directives = {
    model,
    text,
    html
};

const baseOptions = {
    expectHTML: true,
    modules,
    directives,
    isPreTag,
    isUnaryTag,
    mustUseProp,
    canBeLeftOpenTag,
    isReservedTag,
    getTagNamespace,
    staticKeys: genStaticKeys$1(modules)
};

const hasWarned = {};
function warnOnce(msg) {
    const isNodeProd = typeof process !== 'undefined' && process.env.NODE_ENV === 'production';
    if (!isNodeProd && !hasWarned[msg]) {
        hasWarned[msg] = true;
        warn(msg);
    }
}
function warn(msg) {
    console.warn(`\x1b[1m\x1b[33m[@vue/compiler-sfc]\x1b[0m\x1b[33m ${msg}\x1b[0m\n`);
}

const doNotPrefix = makeMap('Infinity,undefined,NaN,isFinite,isNaN,' +
    'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' +
    'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,' +
    'require,' + // for webpack
    'arguments,' + // parsed as identifier but is a special keyword...
    '_c' // cached to save property access
);
/**
 * The input is expected to be a valid expression.
 */
function prefixIdentifiers(source, isFunctional = false, isTS = false, babelOptions = {}, bindings) {
    const s = new MagicString(source);
    const plugins = [
        ...(isTS ? ['typescript'] : []),
        ...((babelOptions === null || babelOptions === void 0 ? void 0 : babelOptions.plugins) || [])
    ];
    const ast = parser$1.parseExpression(source, Object.assign(Object.assign({}, babelOptions), { plugins }));
    const isScriptSetup = bindings && bindings.__isScriptSetup !== false;
    walkIdentifiers(ast, (ident, parent) => {
        const { name } = ident;
        if (doNotPrefix(name)) {
            return;
        }
        let prefix = `_vm.`;
        if (isScriptSetup) {
            const type = bindings[name];
            if (type && type.startsWith('setup')) {
                prefix = `_setup.`;
            }
        }
        if (isStaticProperty(parent) && parent.shorthand) {
            // property shorthand like { foo }, we need to add the key since
            // we rewrite the value
            // { foo } -> { foo: _vm.foo }
            s.appendLeft(ident.end, `: ${prefix}${name}`);
        }
        else {
            s.prependRight(ident.start, prefix);
        }
    }, node => {
        if (node.type === 'WithStatement') {
            s.remove(node.start, node.body.start + 1);
            s.remove(node.end - 1, node.end);
            if (!isFunctional) {
                s.prependRight(node.start, `var _vm=this,_c=_vm._self._c${isScriptSetup ? `,_setup=_vm._self._setupProxy;` : `;`}`);
            }
        }
    });
    return s.toString();
}

const CSS_VARS_HELPER = `useCssVars`;
function genCssVarsFromList(vars, id, isProd, isSSR = false) {
    return `{\n  ${vars
        .map(key => `"${isSSR ? `--` : ``}${genVarName(id, key, isProd)}": (${key})`)
        .join(',\n  ')}\n}`;
}
function genVarName(id, raw, isProd) {
    if (isProd) {
        return hashSum(id + raw);
    }
    else {
        return `${id}-${raw.replace(/([^\w-])/g, '_')}`;
    }
}
function normalizeExpression(exp) {
    exp = exp.trim();
    if ((exp[0] === `'` && exp[exp.length - 1] === `'`) ||
        (exp[0] === `"` && exp[exp.length - 1] === `"`)) {
        return exp.slice(1, -1);
    }
    return exp;
}
const vBindRE = /v-bind\s*\(/g;
function parseCssVars(sfc) {
    const vars = [];
    sfc.styles.forEach(style => {
        let match;
        // ignore v-bind() in comments /* ... */
        const content = style.content.replace(/\/\*([\s\S]*?)\*\//g, '');
        while ((match = vBindRE.exec(content))) {
            const start = match.index + match[0].length;
            const end = lexBinding(content, start);
            if (end !== null) {
                const variable = normalizeExpression(content.slice(start, end));
                if (!vars.includes(variable)) {
                    vars.push(variable);
                }
            }
        }
    });
    return vars;
}
function lexBinding(content, start) {
    let state = 0 /* LexerState.inParens */;
    let parenDepth = 0;
    for (let i = start; i < content.length; i++) {
        const char = content.charAt(i);
        switch (state) {
            case 0 /* LexerState.inParens */:
                if (char === `'`) {
                    state = 1 /* LexerState.inSingleQuoteString */;
                }
                else if (char === `"`) {
                    state = 2 /* LexerState.inDoubleQuoteString */;
                }
                else if (char === `(`) {
                    parenDepth++;
                }
                else if (char === `)`) {
                    if (parenDepth > 0) {
                        parenDepth--;
                    }
                    else {
                        return i;
                    }
                }
                break;
            case 1 /* LexerState.inSingleQuoteString */:
                if (char === `'`) {
                    state = 0 /* LexerState.inParens */;
                }
                break;
            case 2 /* LexerState.inDoubleQuoteString */:
                if (char === `"`) {
                    state = 0 /* LexerState.inParens */;
                }
                break;
        }
    }
    return null;
}
const cssVarsPlugin = opts => {
    const { id, isProd } = opts;
    return {
        postcssPlugin: 'vue-sfc-vars',
        Declaration(decl) {
            // rewrite CSS variables
            const value = decl.value;
            if (vBindRE.test(value)) {
                vBindRE.lastIndex = 0;
                let transformed = '';
                let lastIndex = 0;
                let match;
                while ((match = vBindRE.exec(value))) {
                    const start = match.index + match[0].length;
                    const end = lexBinding(value, start);
                    if (end !== null) {
                        const variable = normalizeExpression(value.slice(start, end));
                        transformed +=
                            value.slice(lastIndex, match.index) +
                                `var(--${genVarName(id, variable, isProd)})`;
                        lastIndex = end + 1;
                    }
                }
                decl.value = transformed + value.slice(lastIndex);
            }
        }
    };
};
cssVarsPlugin.postcss = true;
function genCssVarsCode(vars, bindings, id, isProd) {
    const varsExp = genCssVarsFromList(vars, id, isProd);
    return `_${CSS_VARS_HELPER}((_vm, _setup) => ${prefixIdentifiers(`(${varsExp})`, false, false, undefined, bindings)})`;
}
// <script setup> already gets the calls injected as part of the transform
// this is only for single normal <script>
function genNormalScriptCssVarsCode(cssVars, bindings, id, isProd) {
    return (`\nimport { ${CSS_VARS_HELPER} as _${CSS_VARS_HELPER} } from 'vue'\n` +
        `const __injectCSSVars__ = () => {\n${genCssVarsCode(cssVars, bindings, id, isProd)}}\n` +
        `const __setup__ = __default__.setup\n` +
        `__default__.setup = __setup__\n` +
        `  ? (props, ctx) => { __injectCSSVars__();return __setup__(props, ctx) }\n` +
        `  : __injectCSSVars__\n`);
}

const defaultExportRE = /((?:^|\n|;)\s*)export(\s*)default/;
const namedDefaultExportRE = /((?:^|\n|;)\s*)export(.+)(?:as)?(\s*)default/s;
const exportDefaultClassRE = /((?:^|\n|;)\s*)export\s+default\s+class\s+([\w$]+)/;
/**
 * Utility for rewriting `export default` in a script block into a variable
 * declaration so that we can inject things into it
 */
function rewriteDefault(input, as, parserPlugins) {
    if (!hasDefaultExport(input)) {
        return input + `\nconst ${as} = {}`;
    }
    let replaced;
    const classMatch = input.match(exportDefaultClassRE);
    if (classMatch) {
        replaced =
            input.replace(exportDefaultClassRE, '$1class $2') +
                `\nconst ${as} = ${classMatch[2]}`;
    }
    else {
        replaced = input.replace(defaultExportRE, `$1const ${as} =`);
    }
    if (!hasDefaultExport(replaced)) {
        return replaced;
    }
    // if the script somehow still contains `default export`, it probably has
    // multi-line comments or template strings. fallback to a full parse.
    const s = new MagicString(input);
    const ast = parser$1.parse(input, {
        sourceType: 'module',
        plugins: parserPlugins
    }).program.body;
    ast.forEach(node => {
        if (node.type === 'ExportDefaultDeclaration') {
            if (node.declaration.type === 'ClassDeclaration') {
                s.overwrite(node.start, node.declaration.id.start, `class `);
                s.append(`\nconst ${as} = ${node.declaration.id.name}`);
            }
            else {
                s.overwrite(node.start, node.declaration.start, `const ${as} = `);
            }
        }
        if (node.type === 'ExportNamedDeclaration') {
            for (const specifier of node.specifiers) {
                if (specifier.type === 'ExportSpecifier' &&
                    specifier.exported.type === 'Identifier' &&
                    specifier.exported.name === 'default') {
                    if (node.source) {
                        if (specifier.local.name === 'default') {
                            const end = specifierEnd(input, specifier.local.end, node.end);
                            s.prepend(`import { default as __VUE_DEFAULT__ } from '${node.source.value}'\n`);
                            s.overwrite(specifier.start, end, ``);
                            s.append(`\nconst ${as} = __VUE_DEFAULT__`);
                            continue;
                        }
                        else {
                            const end = specifierEnd(input, specifier.exported.end, node.end);
                            s.prepend(`import { ${input.slice(specifier.local.start, specifier.local.end)} } from '${node.source.value}'\n`);
                            s.overwrite(specifier.start, end, ``);
                            s.append(`\nconst ${as} = ${specifier.local.name}`);
                            continue;
                        }
                    }
                    const end = specifierEnd(input, specifier.end, node.end);
                    s.overwrite(specifier.start, end, ``);
                    s.append(`\nconst ${as} = ${specifier.local.name}`);
                }
            }
        }
    });
    return s.toString();
}
function hasDefaultExport(input) {
    return defaultExportRE.test(input) || namedDefaultExportRE.test(input);
}
function specifierEnd(input, end, nodeEnd) {
    // export { default   , foo } ...
    let hasCommas = false;
    let oldEnd = end;
    while (end < nodeEnd) {
        if (/\s/.test(input.charAt(end))) {
            end++;
        }
        else if (input.charAt(end) === ',') {
            end++;
            hasCommas = true;
            break;
        }
        else if (input.charAt(end) === '}') {
            break;
        }
    }
    return hasCommas ? end : oldEnd;
}

// Special compiler macros
const DEFINE_PROPS = 'defineProps';
const DEFINE_EMITS = 'defineEmits';
const DEFINE_EXPOSE = 'defineExpose';
const WITH_DEFAULTS = 'withDefaults';
// constants
const DEFAULT_VAR = `__default__`;
const isBuiltInDir$1 = makeMap(`once,memo,if,for,else,else-if,slot,text,html,on,bind,model,show,cloak,is`);
/**
 * Compile `<script setup>`
 * It requires the whole SFC descriptor because we need to handle and merge
 * normal `<script>` + `<script setup>` if both are present.
 */
function compileScript(sfc, options = { id: '' }) {
    let { filename, script, scriptSetup, source } = sfc;
    const isProd = !!options.isProd;
    const genSourceMap = options.sourceMap !== false;
    const cssVars = sfc.cssVars;
    const scopeId = options.id ? options.id.replace(/^data-v-/, '') : '';
    const scriptLang = script && script.lang;
    const scriptSetupLang = scriptSetup && scriptSetup.lang;
    const isTS = scriptLang === 'ts' ||
        scriptLang === 'tsx' ||
        scriptSetupLang === 'ts' ||
        scriptSetupLang === 'tsx';
    // resolve parser plugins
    const plugins = [];
    if (!isTS || scriptLang === 'tsx' || scriptSetupLang === 'tsx') {
        plugins.push('jsx');
    }
    else {
        // If don't match the case of adding jsx, should remove the jsx from the babelParserPlugins
        if (options.babelParserPlugins)
            options.babelParserPlugins = options.babelParserPlugins.filter(n => n !== 'jsx');
    }
    if (options.babelParserPlugins)
        plugins.push(...options.babelParserPlugins);
    if (isTS) {
        plugins.push('typescript');
        if (!plugins.includes('decorators')) {
            plugins.push('decorators-legacy');
        }
    }
    if (!scriptSetup) {
        if (!script) {
            throw new Error(`[@vue/compiler-sfc] SFC contains no <script> tags.`);
        }
        if (scriptLang && !isTS && scriptLang !== 'jsx') {
            // do not process non js/ts script blocks
            return script;
        }
        try {
            let content = script.content;
            let map = script.map;
            const scriptAst = parser$1.parse(content, {
                plugins,
                sourceType: 'module'
            }).program;
            const bindings = analyzeScriptBindings(scriptAst.body);
            if (cssVars.length) {
                content = rewriteDefault(content, DEFAULT_VAR, plugins);
                content += genNormalScriptCssVarsCode(cssVars, bindings, scopeId, isProd);
                content += `\nexport default ${DEFAULT_VAR}`;
            }
            return Object.assign(Object.assign({}, script), { content,
                map,
                bindings, scriptAst: scriptAst.body });
        }
        catch (e) {
            // silently fallback if parse fails since user may be using custom
            // babel syntax
            return script;
        }
    }
    if (script && scriptLang !== scriptSetupLang) {
        throw new Error(`[@vue/compiler-sfc] <script> and <script setup> must have the same ` +
            `language type.`);
    }
    if (scriptSetupLang && !isTS && scriptSetupLang !== 'jsx') {
        // do not process non js/ts script blocks
        return scriptSetup;
    }
    // metadata that needs to be returned
    const bindingMetadata = {};
    const helperImports = new Set();
    const userImports = Object.create(null);
    const userImportAlias = Object.create(null);
    const scriptBindings = Object.create(null);
    const setupBindings = Object.create(null);
    let defaultExport;
    let hasDefinePropsCall = false;
    let hasDefineEmitCall = false;
    let hasDefineExposeCall = false;
    let hasDefaultExportName = false;
    let propsRuntimeDecl;
    let propsRuntimeDefaults;
    let propsDestructureDecl;
    let propsTypeDecl;
    let propsTypeDeclRaw;
    let propsIdentifier;
    let emitsRuntimeDecl;
    let emitsTypeDecl;
    let emitsTypeDeclRaw;
    let emitIdentifier;
    // props/emits declared via types
    const typeDeclaredProps = {};
    const typeDeclaredEmits = new Set();
    // record declared types for runtime props type generation
    const declaredTypes = {};
    // props destructure data
    const propsDestructuredBindings = Object.create(null);
    // magic-string state
    const s = new MagicString(source);
    const startOffset = scriptSetup.start;
    const endOffset = scriptSetup.end;
    const scriptStartOffset = script && script.start;
    const scriptEndOffset = script && script.end;
    function helper(key) {
        helperImports.add(key);
        return `_${key}`;
    }
    function parse(input, options, offset) {
        try {
            return parser$1.parse(input, options).program;
        }
        catch (e) {
            e.message = `[@vue/compiler-sfc] ${e.message}\n\n${filename}\n${generateCodeFrame(source, e.pos + offset, e.pos + offset + 1)}`;
            throw e;
        }
    }
    function error(msg, node, end = node.end + startOffset) {
        throw new Error(`[@vue/compiler-sfc] ${msg}\n\n${filename}\n${generateCodeFrame(source, node.start + startOffset, end)}`);
    }
    function registerUserImport(source, local, imported, isType, isFromSetup) {
        if (source === 'vue' && imported) {
            userImportAlias[imported] = local;
        }
        let isUsedInTemplate = true;
        if (sfc.template && !sfc.template.src && !sfc.template.lang) {
            isUsedInTemplate = isImportUsed(local, sfc, isTS);
        }
        userImports[local] = {
            isType,
            imported: imported || 'default',
            source,
            isFromSetup,
            isUsedInTemplate
        };
    }
    function processDefineProps(node, declId) {
        if (!isCallOf(node, DEFINE_PROPS)) {
            return false;
        }
        if (hasDefinePropsCall) {
            error(`duplicate ${DEFINE_PROPS}() call`, node);
        }
        hasDefinePropsCall = true;
        propsRuntimeDecl = node.arguments[0];
        // call has type parameters - infer runtime types from it
        if (node.typeParameters) {
            if (propsRuntimeDecl) {
                error(`${DEFINE_PROPS}() cannot accept both type and non-type arguments ` +
                    `at the same time. Use one or the other.`, node);
            }
            propsTypeDeclRaw = node.typeParameters.params[0];
            propsTypeDecl = resolveQualifiedType(propsTypeDeclRaw, node => node.type === 'TSTypeLiteral');
            if (!propsTypeDecl) {
                error(`type argument passed to ${DEFINE_PROPS}() must be a literal type, ` +
                    `or a reference to an interface or literal type.`, propsTypeDeclRaw);
            }
        }
        if (declId) {
            propsIdentifier = scriptSetup.content.slice(declId.start, declId.end);
        }
        return true;
    }
    function processWithDefaults(node, declId) {
        if (!isCallOf(node, WITH_DEFAULTS)) {
            return false;
        }
        if (processDefineProps(node.arguments[0], declId)) {
            if (propsRuntimeDecl) {
                error(`${WITH_DEFAULTS} can only be used with type-based ` +
                    `${DEFINE_PROPS} declaration.`, node);
            }
            propsRuntimeDefaults = node.arguments[1];
            if (!propsRuntimeDefaults ||
                propsRuntimeDefaults.type !== 'ObjectExpression') {
                error(`The 2nd argument of ${WITH_DEFAULTS} must be an object literal.`, propsRuntimeDefaults || node);
            }
        }
        else {
            error(`${WITH_DEFAULTS}' first argument must be a ${DEFINE_PROPS} call.`, node.arguments[0] || node);
        }
        return true;
    }
    function processDefineEmits(node, declId) {
        if (!isCallOf(node, DEFINE_EMITS)) {
            return false;
        }
        if (hasDefineEmitCall) {
            error(`duplicate ${DEFINE_EMITS}() call`, node);
        }
        hasDefineEmitCall = true;
        emitsRuntimeDecl = node.arguments[0];
        if (node.typeParameters) {
            if (emitsRuntimeDecl) {
                error(`${DEFINE_EMITS}() cannot accept both type and non-type arguments ` +
                    `at the same time. Use one or the other.`, node);
            }
            emitsTypeDeclRaw = node.typeParameters.params[0];
            emitsTypeDecl = resolveQualifiedType(emitsTypeDeclRaw, node => node.type === 'TSFunctionType' || node.type === 'TSTypeLiteral');
            if (!emitsTypeDecl) {
                error(`type argument passed to ${DEFINE_EMITS}() must be a function type, ` +
                    `a literal type with call signatures, or a reference to the above types.`, emitsTypeDeclRaw);
            }
        }
        if (declId) {
            emitIdentifier =
                declId.type === 'Identifier'
                    ? declId.name
                    : scriptSetup.content.slice(declId.start, declId.end);
        }
        return true;
    }
    function resolveQualifiedType(node, qualifier) {
        if (qualifier(node)) {
            return node;
        }
        if (node.type === 'TSTypeReference' &&
            node.typeName.type === 'Identifier') {
            const refName = node.typeName.name;
            const isQualifiedType = (node) => {
                if (node.type === 'TSInterfaceDeclaration' &&
                    node.id.name === refName) {
                    return node.body;
                }
                else if (node.type === 'TSTypeAliasDeclaration' &&
                    node.id.name === refName &&
                    qualifier(node.typeAnnotation)) {
                    return node.typeAnnotation;
                }
                else if (node.type === 'ExportNamedDeclaration' && node.declaration) {
                    return isQualifiedType(node.declaration);
                }
            };
            const body = scriptAst
                ? [...scriptSetupAst.body, ...scriptAst.body]
                : scriptSetupAst.body;
            for (const node of body) {
                const qualified = isQualifiedType(node);
                if (qualified) {
                    return qualified;
                }
            }
        }
    }
    function processDefineExpose(node) {
        if (isCallOf(node, DEFINE_EXPOSE)) {
            if (hasDefineExposeCall) {
                error(`duplicate ${DEFINE_EXPOSE}() call`, node);
            }
            hasDefineExposeCall = true;
            return true;
        }
        return false;
    }
    function checkInvalidScopeReference(node, method) {
        if (!node)
            return;
        walkIdentifiers(node, id => {
            if (setupBindings[id.name]) {
                error(`\`${method}()\` in <script setup> cannot reference locally ` +
                    `declared variables because it will be hoisted outside of the ` +
                    `setup() function. If your component options require initialization ` +
                    `in the module scope, use a separate normal <script> to export ` +
                    `the options instead.`, id);
            }
        });
    }
    /**
     * check defaults. If the default object is an object literal with only
     * static properties, we can directly generate more optimized default
     * declarations. Otherwise we will have to fallback to runtime merging.
     */
    function hasStaticWithDefaults() {
        return (propsRuntimeDefaults &&
            propsRuntimeDefaults.type === 'ObjectExpression' &&
            propsRuntimeDefaults.properties.every(node => (node.type === 'ObjectProperty' && !node.computed) ||
                node.type === 'ObjectMethod'));
    }
    function genRuntimeProps(props) {
        const keys = Object.keys(props);
        if (!keys.length) {
            return ``;
        }
        const hasStaticDefaults = hasStaticWithDefaults();
        const scriptSetupSource = scriptSetup.content;
        let propsDecls = `{
    ${keys
            .map(key => {
            let defaultString;
            const destructured = genDestructuredDefaultValue(key);
            if (destructured) {
                defaultString = `default: ${destructured}`;
            }
            else if (hasStaticDefaults) {
                const prop = propsRuntimeDefaults.properties.find((node) => node.key.name === key);
                if (prop) {
                    if (prop.type === 'ObjectProperty') {
                        // prop has corresponding static default value
                        defaultString = `default: ${scriptSetupSource.slice(prop.value.start, prop.value.end)}`;
                    }
                    else {
                        defaultString = `default() ${scriptSetupSource.slice(prop.body.start, prop.body.end)}`;
                    }
                }
            }
            const { type, required } = props[key];
            if (!isProd) {
                return `${key}: { type: ${toRuntimeTypeString(type)}, required: ${required}${defaultString ? `, ${defaultString}` : ``} }`;
            }
            else if (type.some(el => el === 'Boolean' || (defaultString && el === 'Function'))) {
                // #4783 production: if boolean or defaultString and function exists, should keep the type.
                return `${key}: { type: ${toRuntimeTypeString(type)}${defaultString ? `, ${defaultString}` : ``} }`;
            }
            else {
                // production: checks are useless
                return `${key}: ${defaultString ? `{ ${defaultString} }` : 'null'}`;
            }
        })
            .join(',\n    ')}\n  }`;
        if (propsRuntimeDefaults && !hasStaticDefaults) {
            propsDecls = `${helper('mergeDefaults')}(${propsDecls}, ${source.slice(propsRuntimeDefaults.start + startOffset, propsRuntimeDefaults.end + startOffset)})`;
        }
        return `\n  props: ${propsDecls},`;
    }
    function genDestructuredDefaultValue(key) {
        const destructured = propsDestructuredBindings[key];
        if (destructured && destructured.default) {
            const value = scriptSetup.content.slice(destructured.default.start, destructured.default.end);
            const isLiteral = destructured.default.type.endsWith('Literal');
            return isLiteral ? value : `() => (${value})`;
        }
    }
    function genSetupPropsType(node) {
        const scriptSetupSource = scriptSetup.content;
        if (hasStaticWithDefaults()) {
            // if withDefaults() is used, we need to remove the optional flags
            // on props that have default values
            let res = `{ `;
            const members = node.type === 'TSTypeLiteral' ? node.members : node.body;
            for (const m of members) {
                if ((m.type === 'TSPropertySignature' ||
                    m.type === 'TSMethodSignature') &&
                    m.typeAnnotation &&
                    m.key.type === 'Identifier') {
                    if (propsRuntimeDefaults.properties.some((p) => p.key.name === m.key.name)) {
                        res +=
                            m.key.name +
                                (m.type === 'TSMethodSignature' ? '()' : '') +
                                scriptSetupSource.slice(m.typeAnnotation.start, m.typeAnnotation.end) +
                                ', ';
                    }
                    else {
                        res +=
                            scriptSetupSource.slice(m.start, m.typeAnnotation.end) + `, `;
                    }
                }
            }
            return (res.length ? res.slice(0, -2) : res) + ` }`;
        }
        else {
            return scriptSetupSource.slice(node.start, node.end);
        }
    }
    // 1. process normal <script> first if it exists
    let scriptAst;
    if (script) {
        scriptAst = parse(script.content, {
            plugins,
            sourceType: 'module'
        }, scriptStartOffset);
        for (const node of scriptAst.body) {
            if (node.type === 'ImportDeclaration') {
                // record imports for dedupe
                for (const specifier of node.specifiers) {
                    const imported = specifier.type === 'ImportSpecifier' &&
                        specifier.imported.type === 'Identifier' &&
                        specifier.imported.name;
                    registerUserImport(node.source.value, specifier.local.name, imported, node.importKind === 'type' ||
                        (specifier.type === 'ImportSpecifier' &&
                            specifier.importKind === 'type'), false);
                }
            }
            else if (node.type === 'ExportDefaultDeclaration') {
                // export default
                defaultExport = node;
                // check if user has manually specified `name` or 'render` option in
                // export default
                // if has name, skip name inference
                // if has render and no template, generate return object instead of
                // empty render function (#4980)
                let optionProperties;
                if (defaultExport.declaration.type === 'ObjectExpression') {
                    optionProperties = defaultExport.declaration.properties;
                }
                else if (defaultExport.declaration.type === 'CallExpression' &&
                    defaultExport.declaration.arguments[0].type === 'ObjectExpression') {
                    optionProperties = defaultExport.declaration.arguments[0].properties;
                }
                if (optionProperties) {
                    for (const s of optionProperties) {
                        if (s.type === 'ObjectProperty' &&
                            s.key.type === 'Identifier' &&
                            s.key.name === 'name') {
                            hasDefaultExportName = true;
                        }
                    }
                }
                // export default { ... } --> const __default__ = { ... }
                const start = node.start + scriptStartOffset;
                const end = node.declaration.start + scriptStartOffset;
                s.overwrite(start, end, `const ${DEFAULT_VAR} = `);
            }
            else if (node.type === 'ExportNamedDeclaration') {
                const defaultSpecifier = node.specifiers.find(s => s.exported.type === 'Identifier' && s.exported.name === 'default');
                if (defaultSpecifier) {
                    defaultExport = node;
                    // 1. remove specifier
                    if (node.specifiers.length > 1) {
                        s.remove(defaultSpecifier.start + scriptStartOffset, defaultSpecifier.end + scriptStartOffset);
                    }
                    else {
                        s.remove(node.start + scriptStartOffset, node.end + scriptStartOffset);
                    }
                    if (node.source) {
                        // export { x as default } from './x'
                        // rewrite to `import { x as __default__ } from './x'` and
                        // add to top
                        s.prepend(`import { ${defaultSpecifier.local.name} as ${DEFAULT_VAR} } from '${node.source.value}'\n`);
                    }
                    else {
                        // export { x as default }
                        // rewrite to `const __default__ = x` and move to end
                        s.appendLeft(scriptEndOffset, `\nconst ${DEFAULT_VAR} = ${defaultSpecifier.local.name}\n`);
                    }
                }
                if (node.declaration) {
                    walkDeclaration(node.declaration, scriptBindings, userImportAlias);
                }
            }
            else if ((node.type === 'VariableDeclaration' ||
                node.type === 'FunctionDeclaration' ||
                node.type === 'ClassDeclaration' ||
                node.type === 'TSEnumDeclaration') &&
                !node.declare) {
                walkDeclaration(node, scriptBindings, userImportAlias);
            }
        }
        // apply reactivity transform
        // if (enableReactivityTransform && shouldTransform(script.content)) {
        //   const { rootRefs, importedHelpers } = transformAST(
        //     scriptAst,
        //     s,
        //     scriptStartOffset!
        //   )
        //   refBindings = rootRefs
        //   for (const h of importedHelpers) {
        //     helperImports.add(h)
        //   }
        // }
        // <script> after <script setup>
        // we need to move the block up so that `const __default__` is
        // declared before being used in the actual component definition
        if (scriptStartOffset > startOffset) {
            // if content doesn't end with newline, add one
            if (!/\n$/.test(script.content.trim())) {
                s.appendLeft(scriptEndOffset, `\n`);
            }
            s.move(scriptStartOffset, scriptEndOffset, 0);
        }
    }
    // 2. parse <script setup> and  walk over top level statements
    const scriptSetupAst = parse(scriptSetup.content, {
        plugins: [
            ...plugins,
            // allow top level await but only inside <script setup>
            'topLevelAwait'
        ],
        sourceType: 'module'
    }, startOffset);
    for (const node of scriptSetupAst.body) {
        const start = node.start + startOffset;
        let end = node.end + startOffset;
        // locate comment
        if (node.trailingComments && node.trailingComments.length > 0) {
            const lastCommentNode = node.trailingComments[node.trailingComments.length - 1];
            end = lastCommentNode.end + startOffset;
        }
        // locate the end of whitespace between this statement and the next
        while (end <= source.length) {
            if (!/\s/.test(source.charAt(end))) {
                break;
            }
            end++;
        }
        // (Dropped) `ref: x` bindings
        if (node.type === 'LabeledStatement' &&
            node.label.name === 'ref' &&
            node.body.type === 'ExpressionStatement') {
            error(`ref sugar using the label syntax was an experimental proposal and ` +
                `has been dropped based on community feedback. Please check out ` +
                `the new proposal at https://github.com/vuejs/rfcs/discussions/369`, node);
        }
        if (node.type === 'ImportDeclaration') {
            // import declarations are moved to top
            s.move(start, end, 0);
            // dedupe imports
            let removed = 0;
            const removeSpecifier = (i) => {
                const removeLeft = i > removed;
                removed++;
                const current = node.specifiers[i];
                const next = node.specifiers[i + 1];
                s.remove(removeLeft
                    ? node.specifiers[i - 1].end + startOffset
                    : current.start + startOffset, next && !removeLeft
                    ? next.start + startOffset
                    : current.end + startOffset);
            };
            for (let i = 0; i < node.specifiers.length; i++) {
                const specifier = node.specifiers[i];
                const local = specifier.local.name;
                let imported = specifier.type === 'ImportSpecifier' &&
                    specifier.imported.type === 'Identifier' &&
                    specifier.imported.name;
                if (specifier.type === 'ImportNamespaceSpecifier') {
                    imported = '*';
                }
                const source = node.source.value;
                const existing = userImports[local];
                if (source === 'vue' &&
                    (imported === DEFINE_PROPS ||
                        imported === DEFINE_EMITS ||
                        imported === DEFINE_EXPOSE)) {
                    warnOnce(`\`${imported}\` is a compiler macro and no longer needs to be imported.`);
                    removeSpecifier(i);
                }
                else if (existing) {
                    if (existing.source === source && existing.imported === imported) {
                        // already imported in <script setup>, dedupe
                        removeSpecifier(i);
                    }
                    else {
                        error(`different imports aliased to same local name.`, specifier);
                    }
                }
                else {
                    registerUserImport(source, local, imported, node.importKind === 'type' ||
                        (specifier.type === 'ImportSpecifier' &&
                            specifier.importKind === 'type'), true);
                }
            }
            if (node.specifiers.length && removed === node.specifiers.length) {
                s.remove(node.start + startOffset, node.end + startOffset);
            }
        }
        if (node.type === 'ExpressionStatement') {
            // process `defineProps` and `defineEmit(s)` calls
            if (processDefineProps(node.expression) ||
                processDefineEmits(node.expression) ||
                processWithDefaults(node.expression)) {
                s.remove(node.start + startOffset, node.end + startOffset);
            }
            else if (processDefineExpose(node.expression)) {
                // defineExpose({}) -> expose({})
                const callee = node.expression.callee;
                s.overwrite(callee.start + startOffset, callee.end + startOffset, 'expose');
            }
        }
        if (node.type === 'VariableDeclaration' && !node.declare) {
            const total = node.declarations.length;
            let left = total;
            for (let i = 0; i < total; i++) {
                const decl = node.declarations[i];
                if (decl.init) {
                    // defineProps / defineEmits
                    const isDefineProps = processDefineProps(decl.init, decl.id) ||
                        processWithDefaults(decl.init, decl.id);
                    const isDefineEmits = processDefineEmits(decl.init, decl.id);
                    if (isDefineProps || isDefineEmits) {
                        if (left === 1) {
                            s.remove(node.start + startOffset, node.end + startOffset);
                        }
                        else {
                            let start = decl.start + startOffset;
                            let end = decl.end + startOffset;
                            if (i === 0) {
                                // first one, locate the start of the next
                                end = node.declarations[i + 1].start + startOffset;
                            }
                            else {
                                // not first one, locate the end of the prev
                                start = node.declarations[i - 1].end + startOffset;
                            }
                            s.remove(start, end);
                            left--;
                        }
                    }
                }
            }
        }
        // walk declarations to record declared bindings
        if ((node.type === 'VariableDeclaration' ||
            node.type === 'FunctionDeclaration' ||
            node.type === 'ClassDeclaration') &&
            !node.declare) {
            walkDeclaration(node, setupBindings, userImportAlias);
        }
        // walk statements & named exports / variable declarations for top level
        // await
        if ((node.type === 'VariableDeclaration' && !node.declare) ||
            node.type.endsWith('Statement')) {
            const scope = [scriptSetupAst.body];
            walk$1(node, {
                enter(child, parent) {
                    if (isFunctionType(child)) {
                        this.skip();
                    }
                    if (child.type === 'BlockStatement') {
                        scope.push(child.body);
                    }
                    if (child.type === 'AwaitExpression') {
                        error(`Vue 2 does not support top level await in <script setup>.`, child);
                    }
                },
                exit(node) {
                    if (node.type === 'BlockStatement')
                        scope.pop();
                }
            });
        }
        if ((node.type === 'ExportNamedDeclaration' && node.exportKind !== 'type') ||
            node.type === 'ExportAllDeclaration' ||
            node.type === 'ExportDefaultDeclaration') {
            error(`<script setup> cannot contain ES module exports. ` +
                `If you are using a previous version of <script setup>, please ` +
                `consult the updated RFC at https://github.com/vuejs/rfcs/pull/227.`, node);
        }
        if (isTS) {
            // runtime enum
            if (node.type === 'TSEnumDeclaration') {
                registerBinding(setupBindings, node.id, "setup-const" /* BindingTypes.SETUP_CONST */);
            }
            // move all Type declarations to outer scope
            if (node.type.startsWith('TS') ||
                (node.type === 'ExportNamedDeclaration' &&
                    node.exportKind === 'type') ||
                (node.type === 'VariableDeclaration' && node.declare)) {
                recordType(node, declaredTypes);
                s.move(start, end, 0);
            }
        }
    }
    // 3. Apply reactivity transform
    // if (
    //   (enableReactivityTransform &&
    //     // normal <script> had ref bindings that maybe used in <script setup>
    //     (refBindings || shouldTransform(scriptSetup.content))) ||
    //   propsDestructureDecl
    // ) {
    //   const { rootRefs, importedHelpers } = transformAST(
    //     scriptSetupAst,
    //     s,
    //     startOffset,
    //     refBindings,
    //     propsDestructuredBindings
    //   )
    //   refBindings = refBindings ? [...refBindings, ...rootRefs] : rootRefs
    //   for (const h of importedHelpers) {
    //     helperImports.add(h)
    //   }
    // }
    // 4. extract runtime props/emits code from setup context type
    if (propsTypeDecl) {
        extractRuntimeProps(propsTypeDecl, typeDeclaredProps, declaredTypes);
    }
    if (emitsTypeDecl) {
        extractRuntimeEmits(emitsTypeDecl, typeDeclaredEmits);
    }
    // 5. check useOptions args to make sure it doesn't reference setup scope
    // variables
    checkInvalidScopeReference(propsRuntimeDecl, DEFINE_PROPS);
    checkInvalidScopeReference(propsRuntimeDefaults, DEFINE_PROPS);
    checkInvalidScopeReference(propsDestructureDecl, DEFINE_PROPS);
    checkInvalidScopeReference(emitsRuntimeDecl, DEFINE_EMITS);
    // 6. remove non-script content
    if (script) {
        if (startOffset < scriptStartOffset) {
            // <script setup> before <script>
            s.remove(0, startOffset);
            s.remove(endOffset, scriptStartOffset);
            s.remove(scriptEndOffset, source.length);
        }
        else {
            // <script> before <script setup>
            s.remove(0, scriptStartOffset);
            s.remove(scriptEndOffset, startOffset);
            s.remove(endOffset, source.length);
        }
    }
    else {
        // only <script setup>
        s.remove(0, startOffset);
        s.remove(endOffset, source.length);
    }
    // 7. analyze binding metadata
    if (scriptAst) {
        Object.assign(bindingMetadata, analyzeScriptBindings(scriptAst.body));
    }
    if (propsRuntimeDecl) {
        for (const key of getObjectOrArrayExpressionKeys(propsRuntimeDecl)) {
            bindingMetadata[key] = "props" /* BindingTypes.PROPS */;
        }
    }
    for (const key in typeDeclaredProps) {
        bindingMetadata[key] = "props" /* BindingTypes.PROPS */;
    }
    // props aliases
    // if (propsDestructureDecl) {
    //   if (propsDestructureRestId) {
    //     bindingMetadata[propsDestructureRestId] =
    //       BindingTypes.SETUP_REACTIVE_CONST
    //   }
    //   for (const key in propsDestructuredBindings) {
    //     const { local } = propsDestructuredBindings[key]
    //     if (local !== key) {
    //       bindingMetadata[local] = BindingTypes.PROPS_ALIASED
    //       ;(bindingMetadata.__propsAliases ||
    //         (bindingMetadata.__propsAliases = {}))[local] = key
    //     }
    //   }
    // }
    for (const [key, { isType, imported, source }] of Object.entries(userImports)) {
        if (isType)
            continue;
        bindingMetadata[key] =
            imported === '*' ||
                (imported === 'default' && source.endsWith('.vue')) ||
                source === 'vue'
                ? "setup-const" /* BindingTypes.SETUP_CONST */
                : "setup-maybe-ref" /* BindingTypes.SETUP_MAYBE_REF */;
    }
    for (const key in scriptBindings) {
        bindingMetadata[key] = scriptBindings[key];
    }
    for (const key in setupBindings) {
        bindingMetadata[key] = setupBindings[key];
    }
    // 8. inject `useCssVars` calls
    if (cssVars.length) {
        helperImports.add(CSS_VARS_HELPER);
        s.prependRight(startOffset, `\n${genCssVarsCode(cssVars, bindingMetadata, scopeId, isProd)}\n`);
    }
    // 9. finalize setup() argument signature
    let args = `__props`;
    if (propsTypeDecl) {
        // mark as any and only cast on assignment
        // since the user defined complex types may be incompatible with the
        // inferred type from generated runtime declarations
        args += `: any`;
    }
    // inject user assignment of props
    // we use a default __props so that template expressions referencing props
    // can use it directly
    if (propsIdentifier) {
        s.prependLeft(startOffset, `\nconst ${propsIdentifier} = __props${propsTypeDecl ? ` as ${genSetupPropsType(propsTypeDecl)}` : ``};\n`);
    }
    const destructureElements = hasDefineExposeCall ? [`expose`] : [];
    if (emitIdentifier) {
        destructureElements.push(emitIdentifier === `emit` ? `emit` : `emit: ${emitIdentifier}`);
    }
    if (destructureElements.length) {
        args += `, { ${destructureElements.join(', ')} }`;
        if (emitsTypeDecl) {
            args += `: { emit: (${scriptSetup.content.slice(emitsTypeDecl.start, emitsTypeDecl.end)}), expose: any, slots: any, attrs: any }`;
        }
    }
    // 10. generate return statement
    const allBindings = Object.assign(Object.assign({}, scriptBindings), setupBindings);
    for (const key in userImports) {
        if (!userImports[key].isType && userImports[key].isUsedInTemplate) {
            allBindings[key] = true;
        }
    }
    // __sfc marker indicates these bindings are compiled from <script setup>
    // and should not be proxied on `this`
    const returned = `{ ${`__sfc: true,`}${Object.keys(allBindings).join(', ')} }`;
    s.appendRight(endOffset, `\nreturn ${returned}\n}\n\n`);
    // 11. finalize default export
    let runtimeOptions = ``;
    if (!hasDefaultExportName && filename && filename !== DEFAULT_FILENAME) {
        const match = filename.match(/([^/\\]+)\.\w+$/);
        if (match) {
            runtimeOptions += `\n  __name: '${match[1]}',`;
        }
    }
    if (propsRuntimeDecl) {
        let declCode = scriptSetup.content
            .slice(propsRuntimeDecl.start, propsRuntimeDecl.end)
            .trim();
        runtimeOptions += `\n  props: ${declCode},`;
    }
    else if (propsTypeDecl) {
        runtimeOptions += genRuntimeProps(typeDeclaredProps);
    }
    if (emitsRuntimeDecl) {
        runtimeOptions += `\n  emits: ${scriptSetup.content
            .slice(emitsRuntimeDecl.start, emitsRuntimeDecl.end)
            .trim()},`;
    }
    else if (emitsTypeDecl) {
        runtimeOptions += genRuntimeEmits(typeDeclaredEmits);
    }
    // wrap setup code with function.
    if (isTS) {
        // for TS, make sure the exported type is still valid type with
        // correct props information
        // we have to use object spread for types to be merged properly
        // user's TS setting should compile it down to proper targets
        // export default defineComponent({ ...__default__, ... })
        const def = defaultExport ? `\n  ...${DEFAULT_VAR},` : ``;
        s.prependLeft(startOffset, `\nexport default /*#__PURE__*/${helper(`defineComponent`)}({${def}${runtimeOptions}\n  setup(${args}) {\n`);
        s.appendRight(endOffset, `})`);
    }
    else {
        if (defaultExport) {
            // without TS, can't rely on rest spread, so we use Object.assign
            // export default Object.assign(__default__, { ... })
            s.prependLeft(startOffset, `\nexport default /*#__PURE__*/Object.assign(${DEFAULT_VAR}, {${runtimeOptions}\n  ` +
                `setup(${args}) {\n`);
            s.appendRight(endOffset, `})`);
        }
        else {
            s.prependLeft(startOffset, `\nexport default {${runtimeOptions}\n  setup(${args}) {\n`);
            s.appendRight(endOffset, `}`);
        }
    }
    // 12. finalize Vue helper imports
    if (helperImports.size > 0) {
        s.prepend(`import { ${[...helperImports]
            .map(h => `${h} as _${h}`)
            .join(', ')} } from 'vue'\n`);
    }
    s.trim();
    return Object.assign(Object.assign({}, scriptSetup), { bindings: bindingMetadata, imports: userImports, content: s.toString(), map: genSourceMap
            ? s.generateMap({
                source: filename,
                hires: true,
                includeContent: true
            })
            : undefined, scriptAst: scriptAst === null || scriptAst === void 0 ? void 0 : scriptAst.body, scriptSetupAst: scriptSetupAst === null || scriptSetupAst === void 0 ? void 0 : scriptSetupAst.body });
}
function registerBinding(bindings, node, type) {
    bindings[node.name] = type;
}
function walkDeclaration(node, bindings, userImportAlias) {
    if (node.type === 'VariableDeclaration') {
        const isConst = node.kind === 'const';
        // export const foo = ...
        for (const { id, init } of node.declarations) {
            const isDefineCall = !!(isConst &&
                isCallOf(init, c => c === DEFINE_PROPS || c === DEFINE_EMITS || c === WITH_DEFAULTS));
            if (id.type === 'Identifier') {
                let bindingType;
                const userReactiveBinding = userImportAlias['reactive'] || 'reactive';
                if (isCallOf(init, userReactiveBinding)) {
                    // treat reactive() calls as let since it's meant to be mutable
                    bindingType = isConst
                        ? "setup-reactive-const" /* BindingTypes.SETUP_REACTIVE_CONST */
                        : "setup-let" /* BindingTypes.SETUP_LET */;
                }
                else if (
                // if a declaration is a const literal, we can mark it so that
                // the generated render fn code doesn't need to unref() it
                isDefineCall ||
                    (isConst && canNeverBeRef(init, userReactiveBinding))) {
                    bindingType = isCallOf(init, DEFINE_PROPS)
                        ? "setup-reactive-const" /* BindingTypes.SETUP_REACTIVE_CONST */
                        : "setup-const" /* BindingTypes.SETUP_CONST */;
                }
                else if (isConst) {
                    if (isCallOf(init, userImportAlias['ref'] || 'ref')) {
                        bindingType = "setup-ref" /* BindingTypes.SETUP_REF */;
                    }
                    else {
                        bindingType = "setup-maybe-ref" /* BindingTypes.SETUP_MAYBE_REF */;
                    }
                }
                else {
                    bindingType = "setup-let" /* BindingTypes.SETUP_LET */;
                }
                registerBinding(bindings, id, bindingType);
            }
            else {
                if (isCallOf(init, DEFINE_PROPS)) {
                    // skip walking props destructure
                    return;
                }
                if (id.type === 'ObjectPattern') {
                    walkObjectPattern(id, bindings, isConst, isDefineCall);
                }
                else if (id.type === 'ArrayPattern') {
                    walkArrayPattern(id, bindings, isConst, isDefineCall);
                }
            }
        }
    }
    else if (node.type === 'TSEnumDeclaration' ||
        node.type === 'FunctionDeclaration' ||
        node.type === 'ClassDeclaration') {
        // export function foo() {} / export class Foo {}
        // export declarations must be named.
        bindings[node.id.name] = "setup-const" /* BindingTypes.SETUP_CONST */;
    }
}
function walkObjectPattern(node, bindings, isConst, isDefineCall = false) {
    for (const p of node.properties) {
        if (p.type === 'ObjectProperty') {
            if (p.key.type === 'Identifier' && p.key === p.value) {
                // shorthand: const { x } = ...
                const type = isDefineCall
                    ? "setup-const" /* BindingTypes.SETUP_CONST */
                    : isConst
                        ? "setup-maybe-ref" /* BindingTypes.SETUP_MAYBE_REF */
                        : "setup-let" /* BindingTypes.SETUP_LET */;
                registerBinding(bindings, p.key, type);
            }
            else {
                walkPattern(p.value, bindings, isConst, isDefineCall);
            }
        }
        else {
            // ...rest
            // argument can only be identifier when destructuring
            const type = isConst ? "setup-const" /* BindingTypes.SETUP_CONST */ : "setup-let" /* BindingTypes.SETUP_LET */;
            registerBinding(bindings, p.argument, type);
        }
    }
}
function walkArrayPattern(node, bindings, isConst, isDefineCall = false) {
    for (const e of node.elements) {
        e && walkPattern(e, bindings, isConst, isDefineCall);
    }
}
function walkPattern(node, bindings, isConst, isDefineCall = false) {
    if (node.type === 'Identifier') {
        const type = isDefineCall
            ? "setup-const" /* BindingTypes.SETUP_CONST */
            : isConst
                ? "setup-maybe-ref" /* BindingTypes.SETUP_MAYBE_REF */
                : "setup-let" /* BindingTypes.SETUP_LET */;
        registerBinding(bindings, node, type);
    }
    else if (node.type === 'RestElement') {
        // argument can only be identifier when destructuring
        const type = isConst ? "setup-const" /* BindingTypes.SETUP_CONST */ : "setup-let" /* BindingTypes.SETUP_LET */;
        registerBinding(bindings, node.argument, type);
    }
    else if (node.type === 'ObjectPattern') {
        walkObjectPattern(node, bindings, isConst);
    }
    else if (node.type === 'ArrayPattern') {
        walkArrayPattern(node, bindings, isConst);
    }
    else if (node.type === 'AssignmentPattern') {
        if (node.left.type === 'Identifier') {
            const type = isDefineCall
                ? "setup-const" /* BindingTypes.SETUP_CONST */
                : isConst
                    ? "setup-maybe-ref" /* BindingTypes.SETUP_MAYBE_REF */
                    : "setup-let" /* BindingTypes.SETUP_LET */;
            registerBinding(bindings, node.left, type);
        }
        else {
            walkPattern(node.left, bindings, isConst);
        }
    }
}
function recordType(node, declaredTypes) {
    if (node.type === 'TSInterfaceDeclaration') {
        declaredTypes[node.id.name] = [`Object`];
    }
    else if (node.type === 'TSTypeAliasDeclaration') {
        declaredTypes[node.id.name] = inferRuntimeType(node.typeAnnotation, declaredTypes);
    }
    else if (node.type === 'ExportNamedDeclaration' && node.declaration) {
        recordType(node.declaration, declaredTypes);
    }
}
function extractRuntimeProps(node, props, declaredTypes, isProd) {
    const members = node.type === 'TSTypeLiteral' ? node.members : node.body;
    for (const m of members) {
        if ((m.type === 'TSPropertySignature' || m.type === 'TSMethodSignature') &&
            m.key.type === 'Identifier') {
            let type;
            if (m.type === 'TSMethodSignature') {
                type = ['Function'];
            }
            else if (m.typeAnnotation) {
                type = inferRuntimeType(m.typeAnnotation.typeAnnotation, declaredTypes);
            }
            props[m.key.name] = {
                key: m.key.name,
                required: !m.optional,
                type: type || [`null`]
            };
        }
    }
}
function inferRuntimeType(node, declaredTypes) {
    switch (node.type) {
        case 'TSStringKeyword':
            return ['String'];
        case 'TSNumberKeyword':
            return ['Number'];
        case 'TSBooleanKeyword':
            return ['Boolean'];
        case 'TSObjectKeyword':
            return ['Object'];
        case 'TSTypeLiteral':
            // TODO (nice to have) generate runtime property validation
            return ['Object'];
        case 'TSFunctionType':
            return ['Function'];
        case 'TSArrayType':
        case 'TSTupleType':
            // TODO (nice to have) generate runtime element type/length checks
            return ['Array'];
        case 'TSLiteralType':
            switch (node.literal.type) {
                case 'StringLiteral':
                    return ['String'];
                case 'BooleanLiteral':
                    return ['Boolean'];
                case 'NumericLiteral':
                case 'BigIntLiteral':
                    return ['Number'];
                default:
                    return [`null`];
            }
        case 'TSTypeReference':
            if (node.typeName.type === 'Identifier') {
                if (declaredTypes[node.typeName.name]) {
                    return declaredTypes[node.typeName.name];
                }
                switch (node.typeName.name) {
                    case 'Array':
                    case 'Function':
                    case 'Object':
                    case 'Set':
                    case 'Map':
                    case 'WeakSet':
                    case 'WeakMap':
                    case 'Date':
                    case 'Promise':
                        return [node.typeName.name];
                    case 'Record':
                    case 'Partial':
                    case 'Readonly':
                    case 'Pick':
                    case 'Omit':
                    case 'Exclude':
                    case 'Extract':
                    case 'Required':
                    case 'InstanceType':
                        return ['Object'];
                }
            }
            return [`null`];
        case 'TSParenthesizedType':
            return inferRuntimeType(node.typeAnnotation, declaredTypes);
        case 'TSUnionType':
            return [
                ...new Set([].concat(...node.types.map(t => inferRuntimeType(t, declaredTypes))))
            ];
        case 'TSIntersectionType':
            return ['Object'];
        case 'TSSymbolKeyword':
            return ['Symbol'];
        default:
            return [`null`]; // no runtime check
    }
}
function toRuntimeTypeString(types) {
    return types.length > 1 ? `[${types.join(', ')}]` : types[0];
}
function extractRuntimeEmits(node, emits) {
    if (node.type === 'TSTypeLiteral' || node.type === 'TSInterfaceBody') {
        const members = node.type === 'TSTypeLiteral' ? node.members : node.body;
        for (let t of members) {
            if (t.type === 'TSCallSignatureDeclaration') {
                extractEventNames(t.parameters[0], emits);
            }
        }
        return;
    }
    else {
        extractEventNames(node.parameters[0], emits);
    }
}
function extractEventNames(eventName, emits) {
    if (eventName.type === 'Identifier' &&
        eventName.typeAnnotation &&
        eventName.typeAnnotation.type === 'TSTypeAnnotation') {
        const typeNode = eventName.typeAnnotation.typeAnnotation;
        if (typeNode.type === 'TSLiteralType') {
            if (typeNode.literal.type !== 'UnaryExpression' &&
                typeNode.literal.type !== 'TemplateLiteral') {
                emits.add(String(typeNode.literal.value));
            }
        }
        else if (typeNode.type === 'TSUnionType') {
            for (const t of typeNode.types) {
                if (t.type === 'TSLiteralType' &&
                    t.literal.type !== 'UnaryExpression' &&
                    t.literal.type !== 'TemplateLiteral') {
                    emits.add(String(t.literal.value));
                }
            }
        }
    }
}
function genRuntimeEmits(emits) {
    return emits.size
        ? `\n  emits: [${Array.from(emits)
            .map(p => JSON.stringify(p))
            .join(', ')}],`
        : ``;
}
function isCallOf(node, test) {
    return !!(node &&
        node.type === 'CallExpression' &&
        node.callee.type === 'Identifier' &&
        (typeof test === 'string'
            ? node.callee.name === test
            : test(node.callee.name)));
}
function canNeverBeRef(node, userReactiveImport) {
    if (isCallOf(node, userReactiveImport)) {
        return true;
    }
    switch (node.type) {
        case 'UnaryExpression':
        case 'BinaryExpression':
        case 'ArrayExpression':
        case 'ObjectExpression':
        case 'FunctionExpression':
        case 'ArrowFunctionExpression':
        case 'UpdateExpression':
        case 'ClassExpression':
        case 'TaggedTemplateExpression':
            return true;
        case 'SequenceExpression':
            return canNeverBeRef(node.expressions[node.expressions.length - 1], userReactiveImport);
        default:
            if (node.type.endsWith('Literal')) {
                return true;
            }
            return false;
    }
}
/**
 * Analyze bindings in normal `<script>`
 * Note that `compileScriptSetup` already analyzes bindings as part of its
 * compilation process so this should only be used on single `<script>` SFCs.
 */
function analyzeScriptBindings(ast) {
    for (const node of ast) {
        if (node.type === 'ExportDefaultDeclaration' &&
            node.declaration.type === 'ObjectExpression') {
            return analyzeBindingsFromOptions(node.declaration);
        }
    }
    return {};
}
function analyzeBindingsFromOptions(node) {
    const bindings = {};
    // #3270, #3275
    // mark non-script-setup so we don't resolve components/directives from these
    Object.defineProperty(bindings, '__isScriptSetup', {
        enumerable: false,
        value: false
    });
    for (const property of node.properties) {
        if (property.type === 'ObjectProperty' &&
            !property.computed &&
            property.key.type === 'Identifier') {
            // props
            if (property.key.name === 'props') {
                // props: ['foo']
                // props: { foo: ... }
                for (const key of getObjectOrArrayExpressionKeys(property.value)) {
                    bindings[key] = "props" /* BindingTypes.PROPS */;
                }
            }
            // inject
            else if (property.key.name === 'inject') {
                // inject: ['foo']
                // inject: { foo: {} }
                for (const key of getObjectOrArrayExpressionKeys(property.value)) {
                    bindings[key] = "options" /* BindingTypes.OPTIONS */;
                }
            }
            // computed & methods
            else if (property.value.type === 'ObjectExpression' &&
                (property.key.name === 'computed' || property.key.name === 'methods')) {
                // methods: { foo() {} }
                // computed: { foo() {} }
                for (const key of getObjectExpressionKeys(property.value)) {
                    bindings[key] = "options" /* BindingTypes.OPTIONS */;
                }
            }
        }
        // setup & data
        else if (property.type === 'ObjectMethod' &&
            property.key.type === 'Identifier' &&
            (property.key.name === 'setup' || property.key.name === 'data')) {
            for (const bodyItem of property.body.body) {
                // setup() {
                //   return {
                //     foo: null
                //   }
                // }
                if (bodyItem.type === 'ReturnStatement' &&
                    bodyItem.argument &&
                    bodyItem.argument.type === 'ObjectExpression') {
                    for (const key of getObjectExpressionKeys(bodyItem.argument)) {
                        bindings[key] =
                            property.key.name === 'setup'
                                ? "setup-maybe-ref" /* BindingTypes.SETUP_MAYBE_REF */
                                : "data" /* BindingTypes.DATA */;
                    }
                }
            }
        }
    }
    return bindings;
}
function getObjectExpressionKeys(node) {
    const keys = [];
    for (const prop of node.properties) {
        if ((prop.type === 'ObjectProperty' || prop.type === 'ObjectMethod') &&
            !prop.computed) {
            if (prop.key.type === 'Identifier') {
                keys.push(prop.key.name);
            }
            else if (prop.key.type === 'StringLiteral') {
                keys.push(prop.key.value);
            }
        }
    }
    return keys;
}
function getArrayExpressionKeys(node) {
    const keys = [];
    for (const element of node.elements) {
        if (element && element.type === 'StringLiteral') {
            keys.push(element.value);
        }
    }
    return keys;
}
function getObjectOrArrayExpressionKeys(value) {
    if (value.type === 'ArrayExpression') {
        return getArrayExpressionKeys(value);
    }
    if (value.type === 'ObjectExpression') {
        return getObjectExpressionKeys(value);
    }
    return [];
}
const templateUsageCheckCache = new lruCache(512);
function resolveTemplateUsageCheckString(sfc, isTS) {
    const { content } = sfc.template;
    const cached = templateUsageCheckCache.get(content);
    if (cached) {
        return cached;
    }
    let code = '';
    parseHTML(content, Object.assign(Object.assign({}, baseOptions), { start(tag, attrs) {
            if (!isBuiltInTag(tag) && !isReservedTag(tag)) {
                code += `,${camelize(tag)},${capitalize(camelize(tag))}`;
            }
            for (let i = 0; i < attrs.length; i++) {
                const { name, value } = attrs[i];
                if (dirRE.test(name)) {
                    const baseName = onRE.test(name)
                        ? 'on'
                        : slotRE.test(name)
                            ? 'slot'
                            : bindRE.test(name)
                                ? 'bind'
                                : name.replace(dirRE, '');
                    if (!isBuiltInDir$1(baseName)) {
                        code += `,v${capitalize(camelize(baseName))}`;
                    }
                    if (value) {
                        code += `,${processExp(value, isTS, baseName)}`;
                    }
                }
            }
        },
        chars(text) {
            const res = parseText(text);
            if (res) {
                code += `,${processExp(res.expression, isTS)}`;
            }
        } }));
    code += ';';
    templateUsageCheckCache.set(content, code);
    return code;
}
const forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
function processExp(exp, isTS, dir) {
    if (isTS && / as\s+\w|<.*>|:/.test(exp)) {
        if (dir === 'slot') {
            exp = `(${exp})=>{}`;
        }
        else if (dir === 'on') {
            exp = `()=>{return ${exp}}`;
        }
        else if (dir === 'for') {
            const inMatch = exp.match(forAliasRE);
            if (inMatch) {
                const [, LHS, RHS] = inMatch;
                return processExp(`(${LHS})=>{}`, true) + processExp(RHS, true);
            }
        }
        let ret = '';
        // has potential type cast or generic arguments that uses types
        const ast = parser$1.parseExpression(exp, { plugins: ['typescript'] });
        walkIdentifiers(ast, node => {
            ret += `,` + node.name;
        });
        return ret;
    }
    return stripStrings(exp);
}
function stripStrings(exp) {
    return exp
        .replace(/'[^']*'|"[^"]*"/g, '')
        .replace(/`[^`]+`/g, stripTemplateString);
}
function stripTemplateString(str) {
    const interpMatch = str.match(/\${[^}]+}/g);
    if (interpMatch) {
        return interpMatch.map(m => m.slice(2, -1)).join(',');
    }
    return '';
}
function isImportUsed(local, sfc, isTS) {
    return new RegExp(
    // #4274 escape $ since it's a special char in regex
    // (and is the only regex special char that is valid in identifiers)
    `[^\\w$_]${local.replace(/\$/g, '\\$')}[^\\w$_]`).test(resolveTemplateUsageCheckString(sfc, isTS));
}
/**
 * Note: this comparison assumes the prev/next script are already identical,
 * and only checks the special case where <script setup> unused import
 * pruning result changes due to template changes.
 */
function hmrShouldReload(prevImports, next) {
    if (!next.scriptSetup) {
        return false;
    }
    const isTS = next.scriptSetup.lang === 'ts' || next.scriptSetup.lang === 'tsx';
    // for each previous import, check if its used status remain the same based on
    // the next descriptor's template
    for (const key in prevImports) {
        // if an import was previous unused, but now is used, we need to force
        // reload so that the script now includes that import.
        if (!prevImports[key].isUsedInTemplate && isImportUsed(key, next, isTS)) {
            return true;
        }
    }
    return false;
}

const cache = new lruCache(100);
const splitRE = /\r?\n/g;
const emptyRE = /^(?:\/\/)?\s*$/;
function parse(options) {
    const { source, filename = DEFAULT_FILENAME, compiler, compilerParseOptions = { pad: false }, sourceRoot = '', needMap = true, sourceMap = needMap } = options;
    const cacheKey = hashSum(filename + source + JSON.stringify(compilerParseOptions));
    let output = cache.get(cacheKey);
    if (output) {
        return output;
    }
    if (compiler) {
        // user-provided compiler
        output = compiler.parseComponent(source, compilerParseOptions);
    }
    else {
        // use built-in compiler
        output = parseComponent(source, compilerParseOptions);
    }
    output.filename = filename;
    // parse CSS vars
    output.cssVars = parseCssVars(output);
    output.shouldForceReload = prevImports => hmrShouldReload(prevImports, output);
    if (sourceMap) {
        if (output.script && !output.script.src) {
            output.script.map = generateSourceMap(filename, source, output.script.content, sourceRoot, compilerParseOptions.pad);
        }
        if (output.styles) {
            output.styles.forEach(style => {
                if (!style.src) {
                    style.map = generateSourceMap(filename, source, style.content, sourceRoot, compilerParseOptions.pad);
                }
            });
        }
    }
    cache.set(cacheKey, output);
    return output;
}
function generateSourceMap(filename, source, generated, sourceRoot, pad) {
    const map = new require$$0.SourceMapGenerator({
        file: filename.replace(/\\/g, '/'),
        sourceRoot: sourceRoot.replace(/\\/g, '/')
    });
    let offset = 0;
    if (!pad) {
        offset = source.split(generated).shift().split(splitRE).length - 1;
    }
    map.setSourceContent(filename, source);
    generated.split(splitRE).forEach((line, index) => {
        if (!emptyRE.test(line)) {
            map.addMapping({
                source: filename,
                original: {
                    line: index + 1 + offset,
                    column: 0
                },
                generated: {
                    line: index + 1,
                    column: 0
                }
            });
        }
    });
    return JSON.parse(map.toString());
}

function urlToRequire(url, transformAssetUrlsOption = {}) {
    const returnValue = `"${url}"`;
    // same logic as in transform-require.js
    const firstChar = url.charAt(0);
    if (firstChar === '~') {
        const secondChar = url.charAt(1);
        url = url.slice(secondChar === '/' ? 2 : 1);
    }
    if (isExternalUrl(url) || isDataUrl(url) || firstChar === '#') {
        return returnValue;
    }
    const uriParts = parseUriParts(url);
    if (transformAssetUrlsOption.base) {
        // explicit base - directly rewrite the url into absolute url
        // does not apply to absolute urls or urls that start with `@`
        // since they are aliases
        if (firstChar === '.' || firstChar === '~') {
            // Allow for full hostnames provided in options.base
            const base = parseUriParts(transformAssetUrlsOption.base);
            const protocol = base.protocol || '';
            const host = base.host ? protocol + '//' + base.host : '';
            const basePath = base.path || '/';
            // when packaged in the browser, path will be using the posix-
            // only version provided by rollup-plugin-node-builtins.
            return `"${host}${(path__default["default"].posix || path__default["default"]).join(basePath, uriParts.path + (uriParts.hash || ''))}"`;
        }
    }
    if (transformAssetUrlsOption.includeAbsolute ||
        firstChar === '.' ||
        firstChar === '~' ||
        firstChar === '@') {
        if (!uriParts.hash) {
            return `require("${url}")`;
        }
        else {
            // support uri fragment case by excluding it from
            // the require and instead appending it as string;
            // assuming that the path part is sufficient according to
            // the above caseing(t.i. no protocol-auth-host parts expected)
            return `require("${uriParts.path}") + "${uriParts.hash}"`;
        }
    }
    return returnValue;
}
/**
 * vuejs/component-compiler-utils#22 Support uri fragment in transformed require
 * @param urlString an url as a string
 */
function parseUriParts(urlString) {
    // initialize return value
    const returnValue = url.parse('');
    if (urlString) {
        // A TypeError is thrown if urlString is not a string
        // @see https://nodejs.org/api/url.html#url_url_parse_urlstring_parsequerystring_slashesdenotehost
        if ('string' === typeof urlString) {
            // check is an uri
            return url.parse(urlString, false, true); // take apart the uri
        }
    }
    return returnValue;
}
const externalRE = /^(https?:)?\/\//;
function isExternalUrl(url) {
    return externalRE.test(url);
}
const dataUrlRE = /^\s*data:/i;
function isDataUrl(url) {
    return dataUrlRE.test(url);
}

// vue compiler module for transforming `<tag>:<attribute>` to `require`
const defaultOptions = {
    audio: 'src',
    video: ['src', 'poster'],
    source: 'src',
    img: 'src',
    image: ['xlink:href', 'href'],
    use: ['xlink:href', 'href']
};
var assetUrlsModule = (userOptions, transformAssetUrlsOption) => {
    const options = userOptions
        ? Object.assign({}, defaultOptions, userOptions)
        : defaultOptions;
    return {
        postTransformNode: (node) => {
            transform$1(node, options, transformAssetUrlsOption);
        }
    };
};
function transform$1(node, options, transformAssetUrlsOption) {
    if (node.type !== 1 || !node.attrs)
        return;
    for (const tag in options) {
        if (tag === '*' || node.tag === tag) {
            const attributes = options[tag];
            if (typeof attributes === 'string') {
                node.attrs.some(attr => rewrite(attr, attributes, transformAssetUrlsOption));
            }
            else if (Array.isArray(attributes)) {
                attributes.forEach(item => node.attrs.some(attr => rewrite(attr, item, transformAssetUrlsOption)));
            }
        }
    }
}
function rewrite(attr, name, transformAssetUrlsOption) {
    if (attr.name === name) {
        const value = attr.value;
        // only transform static URLs
        if (value.charAt(0) === '"' && value.charAt(value.length - 1) === '"') {
            attr.value = urlToRequire(value.slice(1, -1), transformAssetUrlsOption);
            return true;
        }
    }
    return false;
}

// vue compiler module for transforming `img:srcset` to a number of `require`s
var srcsetModule = (transformAssetUrlsOptions) => ({
    postTransformNode: (node) => {
        transform(node, transformAssetUrlsOptions);
    }
});
// http://w3c.github.io/html/semantics-embedded-content.html#ref-for-image-candidate-string-5
const escapedSpaceCharacters = /( |\\t|\\n|\\f|\\r)+/g;
function transform(node, transformAssetUrlsOptions) {
    if (node.type !== 1 || !node.attrs) {
        return;
    }
    if (node.tag === 'img' || node.tag === 'source') {
        node.attrs.forEach(attr => {
            if (attr.name === 'srcset') {
                // same logic as in transform-require.js
                const value = attr.value;
                const isStatic = value.charAt(0) === '"' && value.charAt(value.length - 1) === '"';
                if (!isStatic) {
                    return;
                }
                const imageCandidates = value
                    .slice(1, -1)
                    .split(',')
                    .map(s => {
                    // The attribute value arrives here with all whitespace, except
                    // normal spaces, represented by escape sequences
                    const [url, descriptor] = s
                        .replace(escapedSpaceCharacters, ' ')
                        .trim()
                        .split(' ', 2);
                    return {
                        require: urlToRequire(url, transformAssetUrlsOptions),
                        descriptor
                    };
                });
                // "require(url1)"
                // "require(url1) 1x"
                // "require(url1), require(url2)"
                // "require(url1), require(url2) 2x"
                // "require(url1) 1x, require(url2)"
                // "require(url1) 1x, require(url2) 2x"
                const code = imageCandidates
                    .map(({ require, descriptor }) => `${require} + "${descriptor ? ' ' + descriptor : ''}, " + `)
                    .join('')
                    .slice(0, -6)
                    .concat('"')
                    .replace(/ \+ ""$/, '');
                attr.value = code;
            }
        });
    }
}

var consolidate$2 = {exports: {}};

function commonjsRequire(path) {
	throw new Error('Could not dynamically require "' + path + '". Please configure the dynamicRequireTargets or/and ignoreDynamicRequires option of @rollup/plugin-commonjs appropriately for this require call to work.');
}

var consolidate$1 = {exports: {}};

(function (module, exports) {
	/*
	 * Engines which do not support caching of their file contents
	 * should use the `read()` function defined in consolidate.js
	 * On top of this, when an engine compiles to a `Function`,
	 * these functions should either be cached within consolidate.js
	 * or the engine itself via `options.cache`. This will allow
	 * users and frameworks to pass `options.cache = true` for
	 * `NODE_ENV=production`, however edit the file(s) without
	 * re-loading the application in development.
	 */

	/**
	 * Module dependencies.
	 */

	var fs = require$$0__default["default"];
	var path = path__default["default"];
	var util = require$$2__default["default"];

	var join = path.join;
	var resolve = path.resolve;
	var extname = path.extname;
	var dirname = path.dirname;
	var isAbsolute = path.isAbsolute;

	var readCache = {};

	/**
	 * Require cache.
	 */

	var cacheStore = {};

	/**
	 * Require cache.
	 */

	var requires = {};

	/**
	 * Clear the cache.
	 *
	 * @api public
	 */

	exports.clearCache = function() {
	  readCache = {};
	  cacheStore = {};
	};

	/**
	 * Conditionally cache `compiled` template based
	 * on the `options` filename and `.cache` boolean.
	 *
	 * @param {Object} options
	 * @param {Function} compiled
	 * @return {Function}
	 * @api private
	 */

	function cache(options, compiled) {
	  // cachable
	  if (compiled && options.filename && options.cache) {
	    delete readCache[options.filename];
	    cacheStore[options.filename] = compiled;
	    return compiled;
	  }

	  // check cache
	  if (options.filename && options.cache) {
	    return cacheStore[options.filename];
	  }

	  return compiled;
	}

	/**
	 * Read `path` with `options` with
	 * callback `(err, str)`. When `options.cache`
	 * is true the template string will be cached.
	 *
	 * @param {String} options
	 * @param {Function} cb
	 * @api private
	 */

	function read(path, options, cb) {
	  var str = readCache[path];
	  var cached = options.cache && str && typeof str === 'string';

	  // cached (only if cached is a string and not a compiled template function)
	  if (cached) return cb(null, str);

	  // read
	  fs.readFile(path, 'utf8', function(err, str) {
	    if (err) return cb(err);
	    // remove extraneous utf8 BOM marker
	    str = str.replace(/^\uFEFF/, '');
	    if (options.cache) readCache[path] = str;
	    cb(null, str);
	  });
	}

	/**
	 * Read `path` with `options` with
	 * callback `(err, str)`. When `options.cache`
	 * is true the partial string will be cached.
	 *
	 * @param {String} options
	 * @param {Function} fn
	 * @api private
	 */

	function readPartials(path, options, cb) {
	  if (!options.partials) return cb();
	  var keys = Object.keys(options.partials);
	  var partials = {};

	  function next(index) {
	    if (index === keys.length) return cb(null, partials);
	    var key = keys[index];
	    var partialPath = options.partials[key];

	    if (partialPath === undefined || partialPath === null || partialPath === false) {
	      return next(++index);
	    }

	    var file;
	    if (isAbsolute(partialPath)) {
	      if (extname(partialPath) !== '') {
	        file = partialPath;
	      } else {
	        file = join(partialPath + extname(path));
	      }
	    } else {
	      file = join(dirname(path), partialPath + extname(path));
	    }

	    read(file, options, function(err, str) {
	      if (err) return cb(err);
	      partials[key] = str;
	      next(++index);
	    });
	  }

	  next(0);
	}

	/**
	 * promisify
	 */
	function promisify(cb, fn) {
	  return new Promise(function(resolve, reject) {
	    cb = cb || function(err, html) {
	      if (err) {
	        return reject(err);
	      }
	      resolve(html);
	    };
	    fn(cb);
	  });
	}

	/**
	 * fromStringRenderer
	 */

	function fromStringRenderer(name) {
	  return function(path, options, cb) {
	    options.filename = path;

	    return promisify(cb, function(cb) {
	      readPartials(path, options, function(err, partials) {
	        var extend = (requires.extend || (requires.extend = require$$2__default["default"]._extend));
	        var opts = extend({}, options);
	        opts.partials = partials;
	        if (err) return cb(err);
	        if (cache(opts)) {
	          exports[name].render('', opts, cb);
	        } else {
	          read(path, opts, function(err, str) {
	            if (err) return cb(err);
	            exports[name].render(str, opts, cb);
	          });
	        }
	      });
	    });
	  };
	}

	/**
	 * velocity support.
	 */

	exports.velocityjs = fromStringRenderer('velocityjs');

	/**
	 * velocity string support.
	 */

	exports.velocityjs.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.velocityjs || (requires.velocityjs = require('velocityjs'));
	    try {
	      options.locals = options;
	      cb(null, engine.render(str, options).trimLeft());
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * Liquid support.
	 */

	exports.liquid = fromStringRenderer('liquid');

	/**
	 * Liquid string support.
	 */

	/**
	 * Note that in order to get filters and custom tags we've had to push
	 * all user-defined locals down into @locals. However, just to make things
	 * backwards-compatible, any property of `options` that is left after
	 * processing and removing `locals`, `meta`, `filters`, `customTags` and
	 * `includeDir` will also become a local.
	 */

	function _renderTinyliquid(engine, str, options, cb) {
	  var context = engine.newContext();
	  var k;

	  /**
	   * Note that there's a bug in the library that doesn't allow us to pass
	   * the locals to newContext(), hence looping through the keys:
	   */

	  if (options.locals) {
	    for (k in options.locals) {
	      context.setLocals(k, options.locals[k]);
	    }
	    delete options.locals;
	  }

	  if (options.meta) {
	    context.setLocals('page', options.meta);
	    delete options.meta;
	  }

	  /**
	   * Add any defined filters:
	   */

	  if (options.filters) {
	    for (k in options.filters) {
	      context.setFilter(k, options.filters[k]);
	    }
	    delete options.filters;
	  }

	  /**
	   * Set up a callback for the include directory:
	   */

	  var includeDir = options.includeDir || process.cwd();

	  context.onInclude(function(name, callback) {
	    var extname = path.extname(name) ? '' : '.liquid';
	    var filename = path.resolve(includeDir, name + extname);

	    fs.readFile(filename, {encoding: 'utf8'}, function(err, data) {
	      if (err) return callback(err);
	      callback(null, engine.parse(data));
	    });
	  });
	  delete options.includeDir;

	  /**
	   * The custom tag functions need to have their results pushed back
	   * through the parser, so set up a shim before calling the provided
	   * callback:
	   */

	  var compileOptions = {
	    customTags: {}
	  };

	  if (options.customTags) {
	    var tagFunctions = options.customTags;

	    for (k in options.customTags) {
	      /*Tell jshint there's no problem with having this function in the loop */
	      /*jshint -W083 */
	      compileOptions.customTags[k] = function(context, name, body) {
	        var tpl = tagFunctions[name](body.trim());
	        context.astStack.push(engine.parse(tpl));
	      };
	      /*jshint +W083 */
	    }
	    delete options.customTags;
	  }

	  /**
	   * Now anything left in `options` becomes a local:
	   */

	  for (k in options) {
	    context.setLocals(k, options[k]);
	  }

	  /**
	   * Finally, execute the template:
	   */

	  var tmpl = cache(context) || cache(context, engine.compile(str, compileOptions));
	  tmpl(context, cb);
	}

	exports.liquid.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.liquid;
	    var Liquid;

	    try {
	      // set up tinyliquid engine
	      engine = requires.liquid = require('tinyliquid');

	      // use tinyliquid engine
	      _renderTinyliquid(engine, str, options, cb);

	      return;

	    } catch (err) {

	      // set up liquid-node engine
	      try {
	        Liquid = requires.liquid = require('liquid-node');
	        engine = new Liquid.Engine();
	      } catch (err) {
	        throw err;
	      }

	    }

	    // use liquid-node engine
	    try {
	      var locals = options.locals || {};

	      if (options.meta) {
	        locals.pages = options.meta;
	        delete options.meta;
	      }

	      /**
	       * Add any defined filters:
	       */

	      if (options.filters) {
	        engine.registerFilters(options.filters);
	        delete options.filters;
	      }

	      /**
	       * Set up a callback for the include directory:
	       */

	      var includeDir = options.includeDir || process.cwd();
	      engine.fileSystem = new Liquid.LocalFileSystem(includeDir, 'liquid');
	      delete options.includeDir;

	      /**
	       * The custom tag functions need to have their results pushed back
	       * through the parser, so set up a shim before calling the provided
	       * callback:
	       */

	      if (options.customTags) {
	        var tagFunctions = options.customTags;

	        for (k in options.customTags) {
	          engine.registerTag(k, tagFunctions[k]);
	        }
	        delete options.customTags;
	      }

	      /**
	       * Now anything left in `options` becomes a local:
	       */

	      for (var k in options) {
	        locals[k] = options[k];
	      }

	      /**
	       * Finally, execute the template:
	       */

	      return engine
	        .parseAndRender(str, locals)
	        .nodeify(function(err, result) {
	          if (err) {
	            throw new Error(err);
	          } else {
	            return cb(null, result);
	          }
	        });

	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * Jade support.
	 */

	exports.jade = function(path, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.jade;
	    if (!engine) {
	      try {
	        engine = requires.jade = require('jade');
	      } catch (err) {
	        try {
	          engine = requires.jade = require('then-jade');
	        } catch (otherError) {
	          throw err;
	        }
	      }
	    }

	    try {
	      var tmpl = cache(options) || cache(options, engine.compileFile(path, options));
	      cb(null, tmpl(options));
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * Jade string support.
	 */

	exports.jade.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.jade;
	    if (!engine) {
	      try {
	        engine = requires.jade = require('jade');
	      } catch (err) {
	        try {
	          engine = requires.jade = require('then-jade');
	        } catch (otherError) {
	          throw err;
	        }
	      }
	    }

	    try {
	      var tmpl = cache(options) || cache(options, engine.compile(str, options));
	      cb(null, tmpl(options));
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * Dust support.
	 */

	exports.dust = fromStringRenderer('dust');

	/**
	 * Dust string support.
	 */

	exports.dust.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.dust;
	    if (!engine) {
	      try {
	        engine = requires.dust = require('dust');
	      } catch (err) {
	        try {
	          engine = requires.dust = require('dustjs-helpers');
	        } catch (err) {
	          engine = requires.dust = require('dustjs-linkedin');
	        }
	      }
	    }

	    var ext = 'dust';
	    var views = '.';

	    if (options) {
	      if (options.ext) ext = options.ext;
	      if (options.views) views = options.views;
	      if (options.settings && options.settings.views) views = options.settings.views;
	    }
	    if (!options || (options && !options.cache)) engine.cache = {};

	    engine.onLoad = function(path, callback) {
	      if (extname(path) === '') path += '.' + ext;
	      if (path[0] !== '/') path = views + '/' + path;
	      read(path, options, callback);
	    };

	    try {
	      var templateName;
	      if (options.filename) {
	        templateName = options.filename.replace(new RegExp('^' + views + '/'), '').replace(new RegExp('\\.' + ext), '');
	      }

	      var tmpl = cache(options) || cache(options, engine.compileFn(str, templateName));
	      tmpl(options, cb);
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * Swig support.
	 */

	exports.swig = fromStringRenderer('swig');

	/**
	 * Swig string support.
	 */

	exports.swig.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.swig;
	    if (!engine) {
	      try {
	        engine = requires.swig = require('swig');
	      } catch (err) {
	        try {
	          engine = requires.swig = require('swig-templates');
	        } catch (otherError) {
	          throw err;
	        }
	      }
	    }

	    try {
	      if (options.cache === true) options.cache = 'memory';
	      engine.setDefaults({ cache: options.cache });
	      var tmpl = cache(options) || cache(options, engine.compile(str, options));
	      cb(null, tmpl(options));
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * Razor support.
	 */

	exports.razor = function(path, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.razor;
	    if (!engine) {
	      try {
	        engine = requires.razor = require('razor-tmpl');

	      } catch (err) {

	        throw err;

	      }
	    }
	    try {

	      var tmpl = cache(options) || cache(options, (locals) => {
	        console.log('Rendering razor file', path);
	        return engine.renderFileSync(path, locals);
	      });
	      cb(null, tmpl(options));
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * razor string support.
	 */

	exports.razor.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {

	    try {
	      var engine = requires.razor = require('razor-tmpl');
	    } catch (err) {
	      throw err;
	    }

	    try {
	      var tf = engine.compile(str);
	      var tmpl = cache(options) || cache(options, tf);
	      cb(null, tmpl(options));
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * Atpl support.
	 */

	exports.atpl = fromStringRenderer('atpl');

	/**
	 * Atpl string support.
	 */

	exports.atpl.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.atpl || (requires.atpl = require('atpl'));
	    try {
	      var tmpl = cache(options) || cache(options, engine.compile(str, options));
	      cb(null, tmpl(options));
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * Liquor support,
	 */

	exports.liquor = fromStringRenderer('liquor');

	/**
	 * Liquor string support.
	 */

	exports.liquor.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.liquor || (requires.liquor = require('liquor'));
	    try {
	      var tmpl = cache(options) || cache(options, engine.compile(str, options));
	      cb(null, tmpl(options));
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * Twig support.
	 */

	exports.twig = fromStringRenderer('twig');

	/**
	 * Twig string support.
	 */

	exports.twig.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.twig || (requires.twig = require('twig').twig);
	    var templateData = {
	      data: str,
	      allowInlineIncludes: options.allowInlineIncludes,
	      namespaces: options.namespaces,
	      path: options.path
	    };
	    try {
	      var tmpl = cache(templateData) || cache(templateData, engine(templateData));
	      cb(null, tmpl.render(options));
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * EJS support.
	 */

	exports.ejs = fromStringRenderer('ejs');

	/**
	 * EJS string support.
	 */

	exports.ejs.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.ejs || (requires.ejs = require('ejs'));
	    try {
	      var tmpl = cache(options) || cache(options, engine.compile(str, options));
	      cb(null, tmpl(options));
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * Eco support.
	 */

	exports.eco = fromStringRenderer('eco');

	/**
	 * Eco string support.
	 */

	exports.eco.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.eco || (requires.eco = require('eco'));
	    try {
	      cb(null, engine.render(str, options));
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * Jazz support.
	 */

	exports.jazz = fromStringRenderer('jazz');

	/**
	 * Jazz string support.
	 */

	exports.jazz.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.jazz || (requires.jazz = require('jazz'));
	    try {
	      var tmpl = cache(options) || cache(options, engine.compile(str, options));
	      tmpl.eval(options, function(str) {
	        cb(null, str);
	      });
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * JQTPL support.
	 */

	exports.jqtpl = fromStringRenderer('jqtpl');

	/**
	 * JQTPL string support.
	 */

	exports.jqtpl.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.jqtpl || (requires.jqtpl = require('jqtpl'));
	    try {
	      engine.template(str, str);
	      cb(null, engine.tmpl(str, options));
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * Haml support.
	 */

	exports.haml = fromStringRenderer('haml');

	/**
	 * Haml string support.
	 */

	exports.haml.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.haml || (requires.haml = require('hamljs'));
	    try {
	      options.locals = options;
	      cb(null, engine.render(str, options).trimLeft());
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * Hamlet support.
	 */

	exports.hamlet = fromStringRenderer('hamlet');

	/**
	 * Hamlet string support.
	 */

	exports.hamlet.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.hamlet || (requires.hamlet = require('hamlet'));
	    try {
	      options.locals = options;
	      cb(null, engine.render(str, options).trimLeft());
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * Whiskers support.
	 */

	exports.whiskers = function(path, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.whiskers || (requires.whiskers = require('whiskers'));
	    engine.__express(path, options, cb);
	  });
	};

	/**
	 * Whiskers string support.
	 */

	exports.whiskers.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.whiskers || (requires.whiskers = require('whiskers'));
	    try {
	      cb(null, engine.render(str, options));
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * Coffee-HAML support.
	 */

	exports['haml-coffee'] = fromStringRenderer('haml-coffee');

	/**
	 * Coffee-HAML string support.
	 */

	exports['haml-coffee'].render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires['haml-coffee'] || (requires['haml-coffee'] = require('haml-coffee'));
	    try {
	      var tmpl = cache(options) || cache(options, engine.compile(str, options));
	      cb(null, tmpl(options));
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * Hogan support.
	 */

	exports.hogan = fromStringRenderer('hogan');

	/**
	 * Hogan string support.
	 */

	exports.hogan.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.hogan || (requires.hogan = require('hogan.js'));
	    try {
	      var tmpl = cache(options) || cache(options, engine.compile(str, options));
	      cb(null, tmpl.render(options, options.partials));
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * templayed.js support.
	 */

	exports.templayed = fromStringRenderer('templayed');

	/**
	 * templayed.js string support.
	 */

	exports.templayed.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.templayed || (requires.templayed = require('templayed'));
	    try {
	      var tmpl = cache(options) || cache(options, engine(str));
	      cb(null, tmpl(options));
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * Handlebars support.
	 */

	exports.handlebars = fromStringRenderer('handlebars');

	/**
	 * Handlebars string support.
	 */

	exports.handlebars.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.handlebars || (requires.handlebars = require('handlebars'));
	    try {
	      for (var partial in options.partials) {
	        engine.registerPartial(partial, options.partials[partial]);
	      }
	      for (var helper in options.helpers) {
	        engine.registerHelper(helper, options.helpers[helper]);
	      }
	      var tmpl = cache(options) || cache(options, engine.compile(str, options));
	      cb(null, tmpl(options));
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * Underscore support.
	 */

	exports.underscore = fromStringRenderer('underscore');

	/**
	 * Underscore string support.
	 */

	exports.underscore.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.underscore || (requires.underscore = require('underscore'));
	    try {
	      const partials = {};
	      for (var partial in options.partials) {
	        partials[partial] = engine.template(options.partials[partial]);
	      }
	      options.partials = partials;
	      var tmpl = cache(options) || cache(options, engine.template(str, null, options));
	      cb(null, tmpl(options).replace(/\n$/, ''));
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * Lodash support.
	 */

	exports.lodash = fromStringRenderer('lodash');

	/**
	 * Lodash string support.
	 */

	exports.lodash.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.lodash || (requires.lodash = require('lodash'));
	    try {
	      var tmpl = cache(options) || cache(options, engine.template(str, options));
	      cb(null, tmpl(options).replace(/\n$/, ''));
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * Pug support. (formerly Jade)
	 */

	exports.pug = function(path, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.pug;
	    if (!engine) {
	      try {
	        engine = requires.pug = require('pug');
	      } catch (err) {
	        try {
	          engine = requires.pug = require('then-pug');
	        } catch (otherError) {
	          throw err;
	        }
	      }
	    }

	    try {
	      var tmpl = cache(options) || cache(options, engine.compileFile(path, options));
	      cb(null, tmpl(options));
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * Pug string support.
	 */

	exports.pug.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.pug;
	    if (!engine) {
	      try {
	        engine = requires.pug = require('pug');
	      } catch (err) {
	        try {
	          engine = requires.pug = require('then-pug');
	        } catch (otherError) {
	          throw err;
	        }
	      }
	    }

	    try {
	      var tmpl = cache(options) || cache(options, engine.compile(str, options));
	      cb(null, tmpl(options));
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * QEJS support.
	 */

	exports.qejs = fromStringRenderer('qejs');

	/**
	 * QEJS string support.
	 */

	exports.qejs.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    try {
	      var engine = requires.qejs || (requires.qejs = require('qejs'));
	      engine.render(str, options).then(function(result) {
	        cb(null, result);
	      }, function(err) {
	        cb(err);
	      }).done();
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * Walrus support.
	 */

	exports.walrus = fromStringRenderer('walrus');

	/**
	 * Walrus string support.
	 */

	exports.walrus.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.walrus || (requires.walrus = require('walrus'));
	    try {
	      var tmpl = cache(options) || cache(options, engine.parse(str));
	      cb(null, tmpl.compile(options));
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * Mustache support.
	 */

	exports.mustache = fromStringRenderer('mustache');

	/**
	 * Mustache string support.
	 */

	exports.mustache.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.mustache || (requires.mustache = require('mustache'));
	    try {
	      cb(null, engine.render(str, options, options.partials));
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * Just support.
	 */

	exports.just = function(path, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.just;
	    if (!engine) {
	      var JUST = require('just');
	      engine = requires.just = new JUST();
	    }
	    engine.configure({ useCache: options.cache });
	    engine.render(path, options, cb);
	  });
	};

	/**
	 * Just string support.
	 */

	exports.just.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var JUST = require('just');
	    var engine = new JUST({ root: { page: str }});
	    engine.render('page', options, cb);
	  });
	};

	/**
	 * ECT support.
	 */

	exports.ect = function(path, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.ect;
	    if (!engine) {
	      var ECT = require('ect');
	      engine = requires.ect = new ECT(options);
	    }
	    engine.configure({ cache: options.cache });
	    engine.render(path, options, cb);
	  });
	};

	/**
	 * ECT string support.
	 */

	exports.ect.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var ECT = require('ect');
	    var engine = new ECT({ root: { page: str }});
	    engine.render('page', options, cb);
	  });
	};

	/**
	 * mote support.
	 */

	exports.mote = fromStringRenderer('mote');

	/**
	 * mote string support.
	 */

	exports.mote.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.mote || (requires.mote = require('mote'));
	    try {
	      var tmpl = cache(options) || cache(options, engine.compile(str));
	      cb(null, tmpl(options));
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * Toffee support.
	 */

	exports.toffee = function(path, options, cb) {
	  return promisify(cb, function(cb) {
	    var toffee = requires.toffee || (requires.toffee = require('toffee'));
	    toffee.__consolidate_engine_render(path, options, cb);
	  });
	};

	/**
	 * Toffee string support.
	 */

	exports.toffee.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.toffee || (requires.toffee = require('toffee'));
	    try {
	      engine.str_render(str, options, cb);
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * doT support.
	 */

	exports.dot = fromStringRenderer('dot');

	/**
	 * doT string support.
	 */

	exports.dot.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.dot || (requires.dot = require('dot'));
	    var extend = (requires.extend || (requires.extend = require$$2__default["default"]._extend));
	    try {
	      var settings = {};
	      settings = extend(settings, engine.templateSettings);
	      settings = extend(settings, options ? options.dot : {});
	      var tmpl = cache(options) || cache(options, engine.template(str, settings, options));
	      cb(null, tmpl(options));
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * bracket support.
	 */

	exports.bracket = fromStringRenderer('bracket');

	/**
	 * bracket string support.
	 */

	exports.bracket.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.bracket || (requires.bracket = require('bracket-template'));
	    try {
	      var tmpl = cache(options) || cache(options, engine.default.compile(str, options));
	      cb(null, tmpl(options));
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * Ractive support.
	 */

	exports.ractive = fromStringRenderer('ractive');

	/**
	 * Ractive string support.
	 */

	exports.ractive.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var Engine = requires.ractive || (requires.ractive = require('ractive'));

	    var template = cache(options) || cache(options, Engine.parse(str));
	    options.template = template;

	    if (options.data === null || options.data === undefined) {
	      var extend = (requires.extend || (requires.extend = require$$2__default["default"]._extend));

	      // Shallow clone the options object
	      options.data = extend({}, options);

	      // Remove consolidate-specific properties from the clone
	      var i;
	      var length;
	      var properties = ['template', 'filename', 'cache', 'partials'];
	      for (i = 0, length = properties.length; i < length; i++) {
	        var property = properties[i];
	        delete options.data[property];
	      }
	    }

	    try {
	      cb(null, new Engine(options).toHTML());
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * Nunjucks support.
	 */

	exports.nunjucks = fromStringRenderer('nunjucks');

	/**
	 * Nunjucks string support.
	 */

	exports.nunjucks.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {

	    try {

	      var engine = options.nunjucksEnv || requires.nunjucks || (requires.nunjucks = require('nunjucks'));

	      var env = engine;

	      // deprecated fallback support for express
	      // <https://github.com/tj/consolidate.js/pull/152>
	      // <https://github.com/tj/consolidate.js/pull/224>
	      if (options.settings && options.settings.views) {
	        env = engine.configure(options.settings.views);
	      } else if (options.nunjucks && options.nunjucks.configure) {
	        env = engine.configure.apply(engine, options.nunjucks.configure);
	      }

	      //
	      // because `renderString` does not initiate loaders
	      // we must manually create a loader for it based off
	      // either `options.settings.views` or `options.nunjucks` or `options.nunjucks.root`
	      //
	      // <https://github.com/mozilla/nunjucks/issues/730>
	      // <https://github.com/crocodilejs/node-email-templates/issues/182>
	      //

	      // so instead we simply check if we passed a custom loader
	      // otherwise we create a simple file based loader
	      if (options.loader) {
	        env = new engine.Environment(options.loader);
	      } else if (options.settings && options.settings.views) {
	        env = new engine.Environment(
	          new engine.FileSystemLoader(options.settings.views)
	        );
	      } else if (options.nunjucks && options.nunjucks.loader) {
	        if (typeof options.nunjucks.loader === 'string') {
	          env = new engine.Environment(new engine.FileSystemLoader(options.nunjucks.loader));
	        } else {
	          env = new engine.Environment(
	            new engine.FileSystemLoader(
	              options.nunjucks.loader[0],
	              options.nunjucks.loader[1]
	            )
	          );
	        }
	      }

	      env.renderString(str, options, cb);
	    } catch (err) {
	      throw cb(err);
	    }
	  });
	};

	/**
	 * HTMLing support.
	 */

	exports.htmling = fromStringRenderer('htmling');

	/**
	 * HTMLing string support.
	 */

	exports.htmling.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.htmling || (requires.htmling = require('htmling'));
	    try {
	      var tmpl = cache(options) || cache(options, engine.string(str));
	      cb(null, tmpl.render(options));
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 *  Rendering function
	 */
	function requireReact(module, filename) {
	  var babel = requires.babel || (requires.babel = require('babel-core'));

	  var compiled = babel.transformFileSync(filename, { presets: [ 'react' ] }).code;

	  return module._compile(compiled, filename);
	}

	exports.requireReact = requireReact;

	/**
	 *  Converting a string into a node module.
	 */
	function requireReactString(src, filename) {
	  var babel = requires.babel || (requires.babel = require('babel-core'));

	  if (!filename) filename = '';
	  var m = new module.constructor();
	  filename = filename || '';

	  // Compile Using React
	  var compiled = babel.transform(src, { presets: [ 'react' ] }).code;

	  // Compile as a module
	  m.paths = module.paths;
	  m._compile(compiled, filename);

	  return m.exports;
	}

	/**
	 * A naive helper to replace {{tags}} with options.tags content
	 */
	function reactBaseTmpl(data, options) {

	  var exp;
	  var regex;

	  // Iterates through the keys in file object
	  // and interpolate / replace {{key}} with it's value
	  for (var k in options) {
	    if (options.hasOwnProperty(k)) {
	      exp = '{{' + k + '}}';
	      regex = new RegExp(exp, 'g');
	      if (data.match(regex)) {
	        data = data.replace(regex, options[k]);
	      }
	    }
	  }

	  return data;
	}

	/**
	* Plates Support.
	*/

	exports.plates = fromStringRenderer('plates');

	/**
	* Plates string support.
	*/

	exports.plates.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.plates || (requires.plates = require('plates'));
	    var map = options.map || undefined;
	    try {
	      var tmpl = engine.bind(str, options, map);
	      cb(null, tmpl);
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 *  The main render parser for React bsaed templates
	 */
	function reactRenderer(type) {

	  if (commonjsRequire.extensions) {

	    // Ensure JSX is transformed on require
	    if (!commonjsRequire.extensions['.jsx']) {
	      commonjsRequire.extensions['.jsx'] = requireReact;
	    }

	    // Supporting .react extension as well as test cases
	    // Using .react extension is not recommended.
	    if (!commonjsRequire.extensions['.react']) {
	      commonjsRequire.extensions['.react'] = requireReact;
	    }

	  }

	  // Return rendering fx
	  return function(str, options, cb) {
	    return promisify(cb, function(cb) {
	      // React Import
	      var ReactDOM = requires.ReactDOM || (requires.ReactDOM = require('react-dom/server'));
	      var react = requires.react || (requires.react = require('react'));

	      // Assign HTML Base
	      var base = options.base;
	      delete options.base;

	      var enableCache = options.cache;
	      delete options.cache;

	      var isNonStatic = options.isNonStatic;
	      delete options.isNonStatic;

	      // Start Conversion
	      try {

	        var Code;
	        var Factory;

	        var baseStr;
	        var content;
	        var parsed;

	        if (!cache(options)) {
	          // Parsing
	          if (type === 'path') {
	            var path = resolve(str);
	            delete require.cache[path];
	            Code = commonjsRequire(path);
	          } else {
	            Code = requireReactString(str);
	          }
	          Factory = cache(options, react.createFactory(Code));

	        } else {
	          Factory = cache(options);
	        }

	        parsed = new Factory(options);
	        content = (isNonStatic) ? ReactDOM.renderToString(parsed) : ReactDOM.renderToStaticMarkup(parsed);

	        if (base) {
	          baseStr = readCache[str] || fs.readFileSync(resolve(base), 'utf8');

	          if (enableCache) {
	            readCache[str] = baseStr;
	          }

	          options.content = content;
	          content = reactBaseTmpl(baseStr, options);
	        }

	        cb(null, content);

	      } catch (err) {
	        cb(err);
	      }
	    });
	  };
	}

	/**
	 * React JS Support
	 */
	exports.react = reactRenderer('path');

	/**
	 * React JS string support.
	 */
	exports.react.render = reactRenderer('string');

	/**
	 * ARC-templates support.
	 */

	exports['arc-templates'] = fromStringRenderer('arc-templates');

	/**
	 * ARC-templates string support.
	 */

	exports['arc-templates'].render = function(str, options, cb) {
	  var readFileWithOptions = util.promisify(read);
	  var consolidateFileSystem = {};
	  consolidateFileSystem.readFile = function(path) {
	    return readFileWithOptions(path, options);
	  };

	  return promisify(cb, function(cb) {
	    try {
	      var engine = requires['arc-templates'];
	      if (!engine) {
	        var Engine = require('arc-templates/dist/es5');
	        engine = requires['arc-templates'] = new Engine({ filesystem: consolidateFileSystem });
	      }

	      var compiler = cache(options) || cache(options, engine.compileString(str, options.filename));
	      compiler.then(function(func) { return func(options); })
	        .then(function(result) { cb(null, result.content); })
	        .catch(cb);
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * Vash support
	 */
	exports.vash = fromStringRenderer('vash');

	/**
	 * Vash string support
	 */
	exports.vash.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.vash || (requires.vash = require('vash'));

	    try {
	      // helper system : https://github.com/kirbysayshi/vash#helper-system
	      if (options.helpers) {
	        for (var key in options.helpers) {
	          if (!options.helpers.hasOwnProperty(key) || typeof options.helpers[key] !== 'function') {
	            continue;
	          }
	          engine.helpers[key] = options.helpers[key];
	        }
	      }

	      var tmpl = cache(options) || cache(options, engine.compile(str, options));
	      tmpl(options, function sealLayout(err, ctx) {
	        if (err) cb(err);
	        ctx.finishLayout();
	        cb(null, ctx.toString().replace(/\n$/, ''));
	      });
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * Slm support.
	 */

	exports.slm = fromStringRenderer('slm');

	/**
	 * Slm string support.
	 */

	exports.slm.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.slm || (requires.slm = require('slm'));

	    try {
	      var tmpl = cache(options) || cache(options, engine.compile(str, options));
	      cb(null, tmpl(options));
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * Marko support.
	 */

	exports.marko = function(path, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.marko || (requires.marko = require('marko'));
	    options.writeToDisk = !!options.cache;

	    try {
	      var tmpl = cache(options) || cache(options, engine.load(path, options));
	      tmpl.renderToString(options, cb);
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * Marko string support.
	 */

	exports.marko.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.marko || (requires.marko = require('marko'));
	    options.writeToDisk = !!options.cache;
	    options.filename = options.filename || 'string.marko';

	    try {
	      var tmpl = cache(options) || cache(options, engine.load(options.filename, str, options));
	      tmpl.renderToString(options, cb);
	    } catch (err) {
	      cb(err);
	    }
	  });
	};

	/**
	 * Teacup support.
	 */
	exports.teacup = function(path, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.teacup || (requires.teacup = require('teacup/lib/express'));
	    commonjsRequire.extensions['.teacup'] = commonjsRequire.extensions['.coffee'];
	    if (path[0] !== '/') {
	      path = join(process.cwd(), path);
	    }
	    if (!options.cache) {
	      var callback = cb;
	      cb = function() {
	        delete require.cache[path];
	        callback.apply(this, arguments);
	      };
	    }
	    engine.renderFile(path, options, cb);
	  });
	};

	/**
	 * Teacup string support.
	 */
	exports.teacup.render = function(str, options, cb) {
	  var coffee = require('coffee-script');
	  var vm = require('vm');
	  var sandbox = {
	    module: {exports: {}},
	    require: commonjsRequire
	  };
	  return promisify(cb, function(cb) {
	    vm.runInNewContext(coffee.compile(str), sandbox);
	    var tmpl = sandbox.module.exports;
	    cb(null, tmpl(options));
	  });
	};

	/**
	 * Squirrelly support.
	 */

	exports.squirrelly = fromStringRenderer('squirrelly');

	/**
	 * Squirrelly string support.
	 */

	exports.squirrelly.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.squirrelly || (requires.squirrelly = require('squirrelly'));
	    try {
	      for (var partial in options.partials) {
	        engine.definePartial(partial, options.partials[partial]);
	      }
	      for (var helper in options.helpers) {
	        engine.defineHelper(helper, options.helpers[helper]);
	      }
	      var tmpl = cache(options) || cache(options, engine.Compile(str, options));
	      cb(null, tmpl(options, engine));
	    } catch (err) {
	      cb(err);
	    }
	  });
	};
	/**
	 * Twing support.
	 */

	exports.twing = fromStringRenderer('twing');

	/**
	 * Twing string support.
	 */ 

	exports.twing.render = function(str, options, cb) {
	  return promisify(cb, function(cb) {
	    var engine = requires.twing || (requires.twing = require('twing'));
	    try {
	      new engine.TwingEnvironment(new engine.TwingLoaderNull()).createTemplate(str).then((twingTemplate) => {
	        twingTemplate.render(options).then((rendTmpl) => {
	          var tmpl = cache(options) || cache(options, rendTmpl);
	          cb(null, tmpl);
	        });
	      });
	    } catch (err) {
	      cb(err);
	    }
	  });
	};
	/**
	 * expose the instance of the engine
	 */
	exports.requires = requires;
} (consolidate$1, consolidate$1.exports));

(function (module) {
	module.exports = consolidate$1.exports;
} (consolidate$2));

var consolidate = /*@__PURE__*/getDefaultExportFromCjs(consolidate$2.exports);

let isStaticKey;
let isPlatformReservedTag$1;
const genStaticKeysCached = cached(genStaticKeys);
/**
 * Goal of the optimizer: walk the generated template AST tree
 * and detect sub-trees that are purely static, i.e. parts of
 * the DOM that never needs to change.
 *
 * Once we detect these sub-trees, we can:
 *
 * 1. Hoist them into constants, so that we no longer need to
 *    create fresh nodes for them on each re-render;
 * 2. Completely skip them in the patching process.
 */
function optimize$1(root, options) {
    if (!root)
        return;
    isStaticKey = genStaticKeysCached(options.staticKeys || '');
    isPlatformReservedTag$1 = options.isReservedTag || no;
    // first pass: mark all non-static nodes.
    markStatic(root);
    // second pass: mark static roots.
    markStaticRoots(root, false);
}
function genStaticKeys(keys) {
    return makeMap('type,tag,attrsList,attrsMap,plain,parent,children,attrs,start,end,rawAttrsMap' +
        (keys ? ',' + keys : ''));
}
function markStatic(node) {
    node.static = isStatic(node);
    if (node.type === 1) {
        // do not make component slot content static. this avoids
        // 1. components not able to mutate slot nodes
        // 2. static slot content fails for hot-reloading
        if (!isPlatformReservedTag$1(node.tag) &&
            node.tag !== 'slot' &&
            node.attrsMap['inline-template'] == null) {
            return;
        }
        for (let i = 0, l = node.children.length; i < l; i++) {
            const child = node.children[i];
            markStatic(child);
            if (!child.static) {
                node.static = false;
            }
        }
        if (node.ifConditions) {
            for (let i = 1, l = node.ifConditions.length; i < l; i++) {
                const block = node.ifConditions[i].block;
                markStatic(block);
                if (!block.static) {
                    node.static = false;
                }
            }
        }
    }
}
function markStaticRoots(node, isInFor) {
    if (node.type === 1) {
        if (node.static || node.once) {
            node.staticInFor = isInFor;
        }
        // For a node to qualify as a static root, it should have children that
        // are not just static text. Otherwise the cost of hoisting out will
        // outweigh the benefits and it's better off to just always render it fresh.
        if (node.static &&
            node.children.length &&
            !(node.children.length === 1 && node.children[0].type === 3)) {
            node.staticRoot = true;
            return;
        }
        else {
            node.staticRoot = false;
        }
        if (node.children) {
            for (let i = 0, l = node.children.length; i < l; i++) {
                markStaticRoots(node.children[i], isInFor || !!node.for);
            }
        }
        if (node.ifConditions) {
            for (let i = 1, l = node.ifConditions.length; i < l; i++) {
                markStaticRoots(node.ifConditions[i].block, isInFor);
            }
        }
    }
}
function isStatic(node) {
    if (node.type === 2) {
        // expression
        return false;
    }
    if (node.type === 3) {
        // text
        return true;
    }
    return !!(node.pre ||
        (!node.hasBindings && // no dynamic bindings
            !node.if &&
            !node.for && // not v-if or v-for or v-else
            !isBuiltInTag(node.tag) && // not a built-in
            isPlatformReservedTag$1(node.tag) && // not a component
            !isDirectChildOfTemplateFor(node) &&
            Object.keys(node).every(isStaticKey)));
}
function isDirectChildOfTemplateFor(node) {
    while (node.parent) {
        node = node.parent;
        if (node.tag !== 'template') {
            return false;
        }
        if (node.for) {
            return true;
        }
    }
    return false;
}

const fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function(?:\s+[\w$]+)?\s*\(/;
const fnInvokeRE = /\([^)]*?\);*$/;
const simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
// KeyboardEvent.keyCode aliases
const keyCodes = {
    esc: 27,
    tab: 9,
    enter: 13,
    space: 32,
    up: 38,
    left: 37,
    right: 39,
    down: 40,
    delete: [8, 46]
};
// KeyboardEvent.key aliases
const keyNames = {
    // #7880: IE11 and Edge use `Esc` for Escape key name.
    esc: ['Esc', 'Escape'],
    tab: 'Tab',
    enter: 'Enter',
    // #9112: IE11 uses `Spacebar` for Space key name.
    space: [' ', 'Spacebar'],
    // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
    up: ['Up', 'ArrowUp'],
    left: ['Left', 'ArrowLeft'],
    right: ['Right', 'ArrowRight'],
    down: ['Down', 'ArrowDown'],
    // #9112: IE11 uses `Del` for Delete key name.
    delete: ['Backspace', 'Delete', 'Del']
};
// #4868: modifiers that prevent the execution of the listener
// need to explicitly return null so that we can determine whether to remove
// the listener for .once
const genGuard = condition => `if(${condition})return null;`;
const modifierCode = {
    stop: '$event.stopPropagation();',
    prevent: '$event.preventDefault();',
    self: genGuard(`$event.target !== $event.currentTarget`),
    ctrl: genGuard(`!$event.ctrlKey`),
    shift: genGuard(`!$event.shiftKey`),
    alt: genGuard(`!$event.altKey`),
    meta: genGuard(`!$event.metaKey`),
    left: genGuard(`'button' in $event && $event.button !== 0`),
    middle: genGuard(`'button' in $event && $event.button !== 1`),
    right: genGuard(`'button' in $event && $event.button !== 2`)
};
function genHandlers(events, isNative) {
    const prefix = isNative ? 'nativeOn:' : 'on:';
    let staticHandlers = ``;
    let dynamicHandlers = ``;
    for (const name in events) {
        const handlerCode = genHandler(events[name]);
        //@ts-expect-error
        if (events[name] && events[name].dynamic) {
            dynamicHandlers += `${name},${handlerCode},`;
        }
        else {
            staticHandlers += `"${name}":${handlerCode},`;
        }
    }
    staticHandlers = `{${staticHandlers.slice(0, -1)}}`;
    if (dynamicHandlers) {
        return prefix + `_d(${staticHandlers},[${dynamicHandlers.slice(0, -1)}])`;
    }
    else {
        return prefix + staticHandlers;
    }
}
function genHandler(handler) {
    if (!handler) {
        return 'function(){}';
    }
    if (Array.isArray(handler)) {
        return `[${handler.map(handler => genHandler(handler)).join(',')}]`;
    }
    const isMethodPath = simplePathRE.test(handler.value);
    const isFunctionExpression = fnExpRE.test(handler.value);
    const isFunctionInvocation = simplePathRE.test(handler.value.replace(fnInvokeRE, ''));
    if (!handler.modifiers) {
        if (isMethodPath || isFunctionExpression) {
            return handler.value;
        }
        return `function($event){${isFunctionInvocation ? `return ${handler.value}` : handler.value}}`; // inline statement
    }
    else {
        let code = '';
        let genModifierCode = '';
        const keys = [];
        for (const key in handler.modifiers) {
            if (modifierCode[key]) {
                genModifierCode += modifierCode[key];
                // left/right
                if (keyCodes[key]) {
                    keys.push(key);
                }
            }
            else if (key === 'exact') {
                const modifiers = handler.modifiers;
                genModifierCode += genGuard(['ctrl', 'shift', 'alt', 'meta']
                    .filter(keyModifier => !modifiers[keyModifier])
                    .map(keyModifier => `$event.${keyModifier}Key`)
                    .join('||'));
            }
            else {
                keys.push(key);
            }
        }
        if (keys.length) {
            code += genKeyFilter(keys);
        }
        // Make sure modifiers like prevent and stop get executed after key filtering
        if (genModifierCode) {
            code += genModifierCode;
        }
        const handlerCode = isMethodPath
            ? `return ${handler.value}.apply(null, arguments)`
            : isFunctionExpression
                ? `return (${handler.value}).apply(null, arguments)`
                : isFunctionInvocation
                    ? `return ${handler.value}`
                    : handler.value;
        return `function($event){${code}${handlerCode}}`;
    }
}
function genKeyFilter(keys) {
    return (
    // make sure the key filters only apply to KeyboardEvents
    // #9441: can't use 'keyCode' in $event because Chrome autofill fires fake
    // key events that do not have keyCode property...
    `if(!$event.type.indexOf('key')&&` +
        `${keys.map(genFilterCode).join('&&')})return null;`);
}
function genFilterCode(key) {
    const keyVal = parseInt(key, 10);
    if (keyVal) {
        return `$event.keyCode!==${keyVal}`;
    }
    const keyCode = keyCodes[key];
    const keyName = keyNames[key];
    return (`_k($event.keyCode,` +
        `${JSON.stringify(key)},` +
        `${JSON.stringify(keyCode)},` +
        `$event.key,` +
        `${JSON.stringify(keyName)}` +
        `)`);
}

function on(el, dir) {
    if (process.env.NODE_ENV !== 'production' && dir.modifiers) {
        warn$3(`v-on without argument does not support modifiers.`);
    }
    el.wrapListeners = (code) => `_g(${code},${dir.value})`;
}

function bind(el, dir) {
    el.wrapData = (code) => {
        return `_b(${code},'${el.tag}',${dir.value},${dir.modifiers && dir.modifiers.prop ? 'true' : 'false'}${dir.modifiers && dir.modifiers.sync ? ',true' : ''})`;
    };
}

var baseDirectives = {
    on,
    bind,
    cloak: noop
};

class CodegenState {
    constructor(options) {
        this.options = options;
        this.warn = options.warn || baseWarn;
        this.transforms = pluckModuleFunction(options.modules, 'transformCode');
        this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
        this.directives = extend(extend({}, baseDirectives), options.directives);
        const isReservedTag = options.isReservedTag || no;
        this.maybeComponent = (el) => !!el.component || !isReservedTag(el.tag);
        this.onceId = 0;
        this.staticRenderFns = [];
        this.pre = false;
    }
}
function generate$1(ast, options) {
    const state = new CodegenState(options);
    // fix #11483, Root level <script> tags should not be rendered.
    const code = ast
        ? ast.tag === 'script'
            ? 'null'
            : genElement(ast, state)
        : '_c("div")';
    return {
        render: `with(this){return ${code}}`,
        staticRenderFns: state.staticRenderFns
    };
}
function genElement(el, state) {
    if (el.parent) {
        el.pre = el.pre || el.parent.pre;
    }
    if (el.staticRoot && !el.staticProcessed) {
        return genStatic(el, state);
    }
    else if (el.once && !el.onceProcessed) {
        return genOnce(el, state);
    }
    else if (el.for && !el.forProcessed) {
        return genFor(el, state);
    }
    else if (el.if && !el.ifProcessed) {
        return genIf(el, state);
    }
    else if (el.tag === 'template' && !el.slotTarget && !state.pre) {
        return genChildren(el, state) || 'void 0';
    }
    else if (el.tag === 'slot') {
        return genSlot(el, state);
    }
    else {
        // component or element
        let code;
        if (el.component) {
            code = genComponent(el.component, el, state);
        }
        else {
            let data;
            const maybeComponent = state.maybeComponent(el);
            if (!el.plain || (el.pre && maybeComponent)) {
                data = genData(el, state);
            }
            let tag;
            // check if this is a component in <script setup>
            const bindings = state.options.bindings;
            if (maybeComponent && bindings && bindings.__isScriptSetup !== false) {
                tag = checkBindingType(bindings, el.tag);
            }
            if (!tag)
                tag = `'${el.tag}'`;
            const children = el.inlineTemplate ? null : genChildren(el, state, true);
            code = `_c(${tag}${data ? `,${data}` : '' // data
            }${children ? `,${children}` : '' // children
            })`;
        }
        // module transforms
        for (let i = 0; i < state.transforms.length; i++) {
            code = state.transforms[i](el, code);
        }
        return code;
    }
}
function checkBindingType(bindings, key) {
    const camelName = camelize(key);
    const PascalName = capitalize(camelName);
    const checkType = (type) => {
        if (bindings[key] === type) {
            return key;
        }
        if (bindings[camelName] === type) {
            return camelName;
        }
        if (bindings[PascalName] === type) {
            return PascalName;
        }
    };
    const fromConst = checkType("setup-const" /* BindingTypes.SETUP_CONST */) ||
        checkType("setup-reactive-const" /* BindingTypes.SETUP_REACTIVE_CONST */);
    if (fromConst) {
        return fromConst;
    }
    const fromMaybeRef = checkType("setup-let" /* BindingTypes.SETUP_LET */) ||
        checkType("setup-ref" /* BindingTypes.SETUP_REF */) ||
        checkType("setup-maybe-ref" /* BindingTypes.SETUP_MAYBE_REF */);
    if (fromMaybeRef) {
        return fromMaybeRef;
    }
}
// hoist static sub-trees out
function genStatic(el, state) {
    el.staticProcessed = true;
    // Some elements (templates) need to behave differently inside of a v-pre
    // node.  All pre nodes are static roots, so we can use this as a location to
    // wrap a state change and reset it upon exiting the pre node.
    const originalPreState = state.pre;
    if (el.pre) {
        state.pre = el.pre;
    }
    state.staticRenderFns.push(`with(this){return ${genElement(el, state)}}`);
    state.pre = originalPreState;
    return `_m(${state.staticRenderFns.length - 1}${el.staticInFor ? ',true' : ''})`;
}
// v-once
function genOnce(el, state) {
    el.onceProcessed = true;
    if (el.if && !el.ifProcessed) {
        return genIf(el, state);
    }
    else if (el.staticInFor) {
        let key = '';
        let parent = el.parent;
        while (parent) {
            if (parent.for) {
                key = parent.key;
                break;
            }
            parent = parent.parent;
        }
        if (!key) {
            process.env.NODE_ENV !== 'production' &&
                state.warn(`v-once can only be used inside v-for that is keyed. `, el.rawAttrsMap['v-once']);
            return genElement(el, state);
        }
        return `_o(${genElement(el, state)},${state.onceId++},${key})`;
    }
    else {
        return genStatic(el, state);
    }
}
function genIf(el, state, altGen, altEmpty) {
    el.ifProcessed = true; // avoid recursion
    return genIfConditions(el.ifConditions.slice(), state, altGen, altEmpty);
}
function genIfConditions(conditions, state, altGen, altEmpty) {
    if (!conditions.length) {
        return altEmpty || '_e()';
    }
    const condition = conditions.shift();
    if (condition.exp) {
        return `(${condition.exp})?${genTernaryExp(condition.block)}:${genIfConditions(conditions, state, altGen, altEmpty)}`;
    }
    else {
        return `${genTernaryExp(condition.block)}`;
    }
    // v-if with v-once should generate code like (a)?_m(0):_m(1)
    function genTernaryExp(el) {
        return altGen
            ? altGen(el, state)
            : el.once
                ? genOnce(el, state)
                : genElement(el, state);
    }
}
function genFor(el, state, altGen, altHelper) {
    const exp = el.for;
    const alias = el.alias;
    const iterator1 = el.iterator1 ? `,${el.iterator1}` : '';
    const iterator2 = el.iterator2 ? `,${el.iterator2}` : '';
    if (process.env.NODE_ENV !== 'production' &&
        state.maybeComponent(el) &&
        el.tag !== 'slot' &&
        el.tag !== 'template' &&
        !el.key) {
        state.warn(`<${el.tag} v-for="${alias} in ${exp}">: component lists rendered with ` +
            `v-for should have explicit keys. ` +
            `See https://v2.vuejs.org/v2/guide/list.html#key for more info.`, el.rawAttrsMap['v-for'], true /* tip */);
    }
    el.forProcessed = true; // avoid recursion
    return (`${altHelper || '_l'}((${exp}),` +
        `function(${alias}${iterator1}${iterator2}){` +
        `return ${(altGen || genElement)(el, state)}` +
        '})');
}
function genData(el, state) {
    let data = '{';
    // directives first.
    // directives may mutate the el's other properties before they are generated.
    const dirs = genDirectives(el, state);
    if (dirs)
        data += dirs + ',';
    // key
    if (el.key) {
        data += `key:${el.key},`;
    }
    // ref
    if (el.ref) {
        data += `ref:${el.ref},`;
    }
    if (el.refInFor) {
        data += `refInFor:true,`;
    }
    // pre
    if (el.pre) {
        data += `pre:true,`;
    }
    // record original tag name for components using "is" attribute
    if (el.component) {
        data += `tag:"${el.tag}",`;
    }
    // module data generation functions
    for (let i = 0; i < state.dataGenFns.length; i++) {
        data += state.dataGenFns[i](el);
    }
    // attributes
    if (el.attrs) {
        data += `attrs:${genProps(el.attrs)},`;
    }
    // DOM props
    if (el.props) {
        data += `domProps:${genProps(el.props)},`;
    }
    // event handlers
    if (el.events) {
        data += `${genHandlers(el.events, false)},`;
    }
    if (el.nativeEvents) {
        data += `${genHandlers(el.nativeEvents, true)},`;
    }
    // slot target
    // only for non-scoped slots
    if (el.slotTarget && !el.slotScope) {
        data += `slot:${el.slotTarget},`;
    }
    // scoped slots
    if (el.scopedSlots) {
        data += `${genScopedSlots(el, el.scopedSlots, state)},`;
    }
    // component v-model
    if (el.model) {
        data += `model:{value:${el.model.value},callback:${el.model.callback},expression:${el.model.expression}},`;
    }
    // inline-template
    if (el.inlineTemplate) {
        const inlineTemplate = genInlineTemplate(el, state);
        if (inlineTemplate) {
            data += `${inlineTemplate},`;
        }
    }
    data = data.replace(/,$/, '') + '}';
    // v-bind dynamic argument wrap
    // v-bind with dynamic arguments must be applied using the same v-bind object
    // merge helper so that class/style/mustUseProp attrs are handled correctly.
    if (el.dynamicAttrs) {
        data = `_b(${data},"${el.tag}",${genProps(el.dynamicAttrs)})`;
    }
    // v-bind data wrap
    if (el.wrapData) {
        data = el.wrapData(data);
    }
    // v-on data wrap
    if (el.wrapListeners) {
        data = el.wrapListeners(data);
    }
    return data;
}
function genDirectives(el, state) {
    const dirs = el.directives;
    if (!dirs)
        return;
    let res = 'directives:[';
    let hasRuntime = false;
    let i, l, dir, needRuntime;
    for (i = 0, l = dirs.length; i < l; i++) {
        dir = dirs[i];
        needRuntime = true;
        const gen = state.directives[dir.name];
        if (gen) {
            // compile-time directive that manipulates AST.
            // returns true if it also needs a runtime counterpart.
            needRuntime = !!gen(el, dir, state.warn);
        }
        if (needRuntime) {
            hasRuntime = true;
            res += `{name:"${dir.name}",rawName:"${dir.rawName}"${dir.value
                ? `,value:(${dir.value}),expression:${JSON.stringify(dir.value)}`
                : ''}${dir.arg ? `,arg:${dir.isDynamicArg ? dir.arg : `"${dir.arg}"`}` : ''}${dir.modifiers ? `,modifiers:${JSON.stringify(dir.modifiers)}` : ''}},`;
        }
    }
    if (hasRuntime) {
        return res.slice(0, -1) + ']';
    }
}
function genInlineTemplate(el, state) {
    const ast = el.children[0];
    if (process.env.NODE_ENV !== 'production' && (el.children.length !== 1 || ast.type !== 1)) {
        state.warn('Inline-template components must have exactly one child element.', { start: el.start });
    }
    if (ast && ast.type === 1) {
        const inlineRenderFns = generate$1(ast, state.options);
        return `inlineTemplate:{render:function(){${inlineRenderFns.render}},staticRenderFns:[${inlineRenderFns.staticRenderFns
            .map(code => `function(){${code}}`)
            .join(',')}]}`;
    }
}
function genScopedSlots(el, slots, state) {
    // by default scoped slots are considered "stable", this allows child
    // components with only scoped slots to skip forced updates from parent.
    // but in some cases we have to bail-out of this optimization
    // for example if the slot contains dynamic names, has v-if or v-for on them...
    let needsForceUpdate = el.for ||
        Object.keys(slots).some(key => {
            const slot = slots[key];
            return (slot.slotTargetDynamic || slot.if || slot.for || containsSlotChild(slot) // is passing down slot from parent which may be dynamic
            );
        });
    // #9534: if a component with scoped slots is inside a conditional branch,
    // it's possible for the same component to be reused but with different
    // compiled slot content. To avoid that, we generate a unique key based on
    // the generated code of all the slot contents.
    let needsKey = !!el.if;
    // OR when it is inside another scoped slot or v-for (the reactivity may be
    // disconnected due to the intermediate scope variable)
    // #9438, #9506
    // TODO: this can be further optimized by properly analyzing in-scope bindings
    // and skip force updating ones that do not actually use scope variables.
    if (!needsForceUpdate) {
        let parent = el.parent;
        while (parent) {
            if ((parent.slotScope && parent.slotScope !== emptySlotScopeToken) ||
                parent.for) {
                needsForceUpdate = true;
                break;
            }
            if (parent.if) {
                needsKey = true;
            }
            parent = parent.parent;
        }
    }
    const generatedSlots = Object.keys(slots)
        .map(key => genScopedSlot(slots[key], state))
        .join(',');
    return `scopedSlots:_u([${generatedSlots}]${needsForceUpdate ? `,null,true` : ``}${!needsForceUpdate && needsKey ? `,null,false,${hash(generatedSlots)}` : ``})`;
}
function hash(str) {
    let hash = 5381;
    let i = str.length;
    while (i) {
        hash = (hash * 33) ^ str.charCodeAt(--i);
    }
    return hash >>> 0;
}
function containsSlotChild(el) {
    if (el.type === 1) {
        if (el.tag === 'slot') {
            return true;
        }
        return el.children.some(containsSlotChild);
    }
    return false;
}
function genScopedSlot(el, state) {
    const isLegacySyntax = el.attrsMap['slot-scope'];
    if (el.if && !el.ifProcessed && !isLegacySyntax) {
        return genIf(el, state, genScopedSlot, `null`);
    }
    if (el.for && !el.forProcessed) {
        return genFor(el, state, genScopedSlot);
    }
    const slotScope = el.slotScope === emptySlotScopeToken ? `` : String(el.slotScope);
    const fn = `function(${slotScope}){` +
        `return ${el.tag === 'template'
            ? el.if && isLegacySyntax
                ? `(${el.if})?${genChildren(el, state) || 'undefined'}:undefined`
                : genChildren(el, state) || 'undefined'
            : genElement(el, state)}}`;
    // reverse proxy v-slot without scope on this.$slots
    const reverseProxy = slotScope ? `` : `,proxy:true`;
    return `{key:${el.slotTarget || `"default"`},fn:${fn}${reverseProxy}}`;
}
function genChildren(el, state, checkSkip, altGenElement, altGenNode) {
    const children = el.children;
    if (children.length) {
        const el = children[0];
        // optimize single v-for
        if (children.length === 1 &&
            el.for &&
            el.tag !== 'template' &&
            el.tag !== 'slot') {
            const normalizationType = checkSkip
                ? state.maybeComponent(el)
                    ? `,1`
                    : `,0`
                : ``;
            return `${(altGenElement || genElement)(el, state)}${normalizationType}`;
        }
        const normalizationType = checkSkip
            ? getNormalizationType(children, state.maybeComponent)
            : 0;
        const gen = altGenNode || genNode;
        return `[${children.map(c => gen(c, state)).join(',')}]${normalizationType ? `,${normalizationType}` : ''}`;
    }
}
// determine the normalization needed for the children array.
// 0: no normalization needed
// 1: simple normalization needed (possible 1-level deep nested array)
// 2: full normalization needed
function getNormalizationType(children, maybeComponent) {
    let res = 0;
    for (let i = 0; i < children.length; i++) {
        const el = children[i];
        if (el.type !== 1) {
            continue;
        }
        if (needsNormalization(el) ||
            (el.ifConditions &&
                el.ifConditions.some(c => needsNormalization(c.block)))) {
            res = 2;
            break;
        }
        if (maybeComponent(el) ||
            (el.ifConditions && el.ifConditions.some(c => maybeComponent(c.block)))) {
            res = 1;
        }
    }
    return res;
}
function needsNormalization(el) {
    return el.for !== undefined || el.tag === 'template' || el.tag === 'slot';
}
function genNode(node, state) {
    if (node.type === 1) {
        return genElement(node, state);
    }
    else if (node.type === 3 && node.isComment) {
        return genComment(node);
    }
    else {
        return genText(node);
    }
}
function genText(text) {
    return `_v(${text.type === 2
        ? text.expression // no need for () because already wrapped in _s()
        : transformSpecialNewlines(JSON.stringify(text.text))})`;
}
function genComment(comment) {
    return `_e(${JSON.stringify(comment.text)})`;
}
function genSlot(el, state) {
    const slotName = el.slotName || '"default"';
    const children = genChildren(el, state);
    let res = `_t(${slotName}${children ? `,function(){return ${children}}` : ''}`;
    const attrs = el.attrs || el.dynamicAttrs
        ? genProps((el.attrs || []).concat(el.dynamicAttrs || []).map(attr => ({
            // slot props are camelized
            name: camelize(attr.name),
            value: attr.value,
            dynamic: attr.dynamic
        })))
        : null;
    const bind = el.attrsMap['v-bind'];
    if ((attrs || bind) && !children) {
        res += `,null`;
    }
    if (attrs) {
        res += `,${attrs}`;
    }
    if (bind) {
        res += `${attrs ? '' : ',null'},${bind}`;
    }
    return res + ')';
}
// componentName is el.component, take it as argument to shun flow's pessimistic refinement
function genComponent(componentName, el, state) {
    const children = el.inlineTemplate ? null : genChildren(el, state, true);
    return `_c(${componentName},${genData(el, state)}${children ? `,${children}` : ''})`;
}
function genProps(props) {
    let staticProps = ``;
    let dynamicProps = ``;
    for (let i = 0; i < props.length; i++) {
        const prop = props[i];
        const value = transformSpecialNewlines(prop.value);
        if (prop.dynamic) {
            dynamicProps += `${prop.name},${value},`;
        }
        else {
            staticProps += `"${prop.name}":${value},`;
        }
    }
    staticProps = `{${staticProps.slice(0, -1)}}`;
    if (dynamicProps) {
        return `_d(${staticProps},[${dynamicProps.slice(0, -1)}])`;
    }
    else {
        return staticProps;
    }
}
// #3895, #4268
function transformSpecialNewlines(text) {
    return text.replace(/\u2028/g, '\\u2028').replace(/\u2029/g, '\\u2029');
}

// these keywords should not appear inside expressions, but operators like
// typeof, instanceof and in are allowed
const prohibitedKeywordRE = new RegExp('\\b' +
    ('do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,' +
        'super,throw,while,yield,delete,export,import,return,switch,default,' +
        'extends,finally,continue,debugger,function,arguments')
        .split(',')
        .join('\\b|\\b') +
    '\\b');
// these unary operators should not be used as property/method names
const unaryOperatorsRE = new RegExp('\\b' +
    'delete,typeof,void'.split(',').join('\\s*\\([^\\)]*\\)|\\b') +
    '\\s*\\([^\\)]*\\)');
// strip strings in expressions
const stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
// detect problematic expressions in a template
function detectErrors(ast, warn) {
    if (ast) {
        checkNode(ast, warn);
    }
}
function checkNode(node, warn) {
    if (node.type === 1) {
        for (const name in node.attrsMap) {
            if (dirRE.test(name)) {
                const value = node.attrsMap[name];
                if (value) {
                    const range = node.rawAttrsMap[name];
                    if (name === 'v-for') {
                        checkFor(node, `v-for="${value}"`, warn, range);
                    }
                    else if (name === 'v-slot' || name[0] === '#') {
                        checkFunctionParameterExpression(value, `${name}="${value}"`, warn, range);
                    }
                    else if (onRE.test(name)) {
                        checkEvent(value, `${name}="${value}"`, warn, range);
                    }
                    else {
                        checkExpression(value, `${name}="${value}"`, warn, range);
                    }
                }
            }
        }
        if (node.children) {
            for (let i = 0; i < node.children.length; i++) {
                checkNode(node.children[i], warn);
            }
        }
    }
    else if (node.type === 2) {
        checkExpression(node.expression, node.text, warn, node);
    }
}
function checkEvent(exp, text, warn, range) {
    const stripped = exp.replace(stripStringRE, '');
    const keywordMatch = stripped.match(unaryOperatorsRE);
    if (keywordMatch && stripped.charAt(keywordMatch.index - 1) !== '$') {
        warn(`avoid using JavaScript unary operator as property name: ` +
            `"${keywordMatch[0]}" in expression ${text.trim()}`, range);
    }
    checkExpression(exp, text, warn, range);
}
function checkFor(node, text, warn, range) {
    checkExpression(node.for || '', text, warn, range);
    checkIdentifier(node.alias, 'v-for alias', text, warn, range);
    checkIdentifier(node.iterator1, 'v-for iterator', text, warn, range);
    checkIdentifier(node.iterator2, 'v-for iterator', text, warn, range);
}
function checkIdentifier(ident, type, text, warn, range) {
    if (typeof ident === 'string') {
        try {
            new Function(`var ${ident}=_`);
        }
        catch (e) {
            warn(`invalid ${type} "${ident}" in expression: ${text.trim()}`, range);
        }
    }
}
function checkExpression(exp, text, warn, range) {
    try {
        new Function(`return ${exp}`);
    }
    catch (e) {
        const keywordMatch = exp
            .replace(stripStringRE, '')
            .match(prohibitedKeywordRE);
        if (keywordMatch) {
            warn(`avoid using JavaScript keyword as property name: ` +
                `"${keywordMatch[0]}"\n  Raw expression: ${text.trim()}`, range);
        }
        else {
            warn(`invalid expression: ${e.message} in\n\n` +
                `    ${exp}\n\n` +
                `  Raw expression: ${text.trim()}\n`, range);
        }
    }
}
function checkFunctionParameterExpression(exp, text, warn, range) {
    try {
        new Function(exp, '');
    }
    catch (e) {
        warn(`invalid function parameter expression: ${e.message} in\n\n` +
            `    ${exp}\n\n` +
            `  Raw expression: ${text.trim()}\n`, range);
    }
}

function createFunction(code, errors) {
    try {
        return new Function(code);
    }
    catch (err) {
        errors.push({ err, code });
        return noop;
    }
}
function createCompileToFunctionFn(compile) {
    const cache = Object.create(null);
    return function compileToFunctions(template, options, vm) {
        options = extend({}, options);
        const warn = options.warn || warn$3;
        delete options.warn;
        /* istanbul ignore if */
        if (process.env.NODE_ENV !== 'production') {
            // detect possible CSP restriction
            try {
                new Function('return 1');
            }
            catch (e) {
                if (e.toString().match(/unsafe-eval|CSP/)) {
                    warn('It seems you are using the standalone build of Vue.js in an ' +
                        'environment with Content Security Policy that prohibits unsafe-eval. ' +
                        'The template compiler cannot work in this environment. Consider ' +
                        'relaxing the policy to allow unsafe-eval or pre-compiling your ' +
                        'templates into render functions.');
                }
            }
        }
        // check cache
        const key = options.delimiters
            ? String(options.delimiters) + template
            : template;
        if (cache[key]) {
            return cache[key];
        }
        // compile
        const compiled = compile(template, options);
        // check compilation errors/tips
        if (process.env.NODE_ENV !== 'production') {
            if (compiled.errors && compiled.errors.length) {
                if (options.outputSourceRange) {
                    compiled.errors.forEach(e => {
                        warn(`Error compiling template:\n\n${e.msg}\n\n` +
                            generateCodeFrame(template, e.start, e.end), vm);
                    });
                }
                else {
                    warn(`Error compiling template:\n\n${template}\n\n` +
                        compiled.errors.map(e => `- ${e}`).join('\n') +
                        '\n', vm);
                }
            }
            if (compiled.tips && compiled.tips.length) {
                if (options.outputSourceRange) {
                    compiled.tips.forEach(e => tip(e.msg, vm));
                }
                else {
                    compiled.tips.forEach(msg => tip(msg, vm));
                }
            }
        }
        // turn code into functions
        const res = {};
        const fnGenErrors = [];
        res.render = createFunction(compiled.render, fnGenErrors);
        res.staticRenderFns = compiled.staticRenderFns.map(code => {
            return createFunction(code, fnGenErrors);
        });
        // check function generation errors.
        // this should only happen if there is a bug in the compiler itself.
        // mostly for codegen development use
        /* istanbul ignore if */
        if (process.env.NODE_ENV !== 'production') {
            if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) {
                warn(`Failed to generate render function:\n\n` +
                    fnGenErrors
                        .map(({ err, code }) => `${err.toString()} in\n\n${code}\n`)
                        .join('\n'), vm);
            }
        }
        return (cache[key] = res);
    };
}

function createCompilerCreator(baseCompile) {
    return function createCompiler(baseOptions) {
        function compile(template, options) {
            const finalOptions = Object.create(baseOptions);
            const errors = [];
            const tips = [];
            let warn = (msg, range, tip) => {
                (tip ? tips : errors).push(msg);
            };
            if (options) {
                if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
                    // $flow-disable-line
                    const leadingSpaceLength = template.match(/^\s*/)[0].length;
                    warn = (msg, range, tip) => {
                        const data = typeof msg === 'string' ? { msg } : msg;
                        if (range) {
                            if (range.start != null) {
                                data.start = range.start + leadingSpaceLength;
                            }
                            if (range.end != null) {
                                data.end = range.end + leadingSpaceLength;
                            }
                        }
                        (tip ? tips : errors).push(data);
                    };
                }
                // merge custom modules
                if (options.modules) {
                    finalOptions.modules = (baseOptions.modules || []).concat(options.modules);
                }
                // merge custom directives
                if (options.directives) {
                    finalOptions.directives = extend(Object.create(baseOptions.directives || null), options.directives);
                }
                // copy other options
                for (const key in options) {
                    if (key !== 'modules' && key !== 'directives') {
                        finalOptions[key] = options[key];
                    }
                }
            }
            finalOptions.warn = warn;
            const compiled = baseCompile(template.trim(), finalOptions);
            if (process.env.NODE_ENV !== 'production') {
                detectErrors(compiled.ast, warn);
            }
            compiled.errors = errors;
            compiled.tips = tips;
            return compiled;
        }
        return {
            compile,
            compileToFunctions: createCompileToFunctionFn(compile)
        };
    };
}

// `createCompilerCreator` allows creating compilers that use alternative
// parser/optimizer/codegen, e.g the SSR optimizing compiler.
// Here we just export a default compiler using the default parts.
const createCompiler$1 = createCompilerCreator(function baseCompile(template, options) {
    const ast = parse$1(template.trim(), options);
    if (options.optimize !== false) {
        optimize$1(ast, options);
    }
    const code = generate$1(ast, options);
    return {
        ast,
        render: code.render,
        staticRenderFns: code.staticRenderFns
    };
});

const { compile: compile$1, compileToFunctions: compileToFunctions$1 } = createCompiler$1(baseOptions);

const isAttr = makeMap('accept,accept-charset,accesskey,action,align,alt,async,autocomplete,' +
    'autofocus,autoplay,autosave,bgcolor,border,buffered,challenge,charset,' +
    'checked,cite,class,code,codebase,color,cols,colspan,content,' +
    'contenteditable,contextmenu,controls,coords,data,datetime,default,' +
    'defer,dir,dirname,disabled,download,draggable,dropzone,enctype,for,' +
    'form,formaction,headers,height,hidden,high,href,hreflang,http-equiv,' +
    'icon,id,ismap,itemprop,keytype,kind,label,lang,language,list,loop,low,' +
    'manifest,max,maxlength,media,method,GET,POST,min,multiple,email,file,' +
    'muted,name,novalidate,open,optimum,pattern,ping,placeholder,poster,' +
    'preload,radiogroup,readonly,rel,required,reversed,rows,rowspan,sandbox,' +
    'scope,scoped,seamless,selected,shape,size,type,text,password,sizes,span,' +
    'spellcheck,src,srcdoc,srclang,srcset,start,step,style,summary,tabindex,' +
    'target,title,usemap,value,width,wrap');
/* istanbul ignore next */
const isRenderableAttr = (name) => {
    return (isAttr(name) || name.indexOf('data-') === 0 || name.indexOf('aria-') === 0);
};
const propsToAttrMap = {
    acceptCharset: 'accept-charset',
    className: 'class',
    htmlFor: 'for',
    httpEquiv: 'http-equiv'
};
const ESC = {
    '<': '&lt;',
    '>': '&gt;',
    '"': '&quot;',
    '&': '&amp;'
};
function escape(s) {
    return s.replace(/[<>"&]/g, escapeChar);
}
function escapeChar(a) {
    return ESC[a] || a;
}

const plainStringRE = /^"(?:[^"\\]|\\.)*"$|^'(?:[^'\\]|\\.)*'$/;
// let the model AST transform translate v-model into appropriate
// props bindings
function applyModelTransform(el, state) {
    if (el.directives) {
        for (let i = 0; i < el.directives.length; i++) {
            const dir = el.directives[i];
            if (dir.name === 'model') {
                state.directives.model(el, dir, state.warn);
                // remove value for textarea as its converted to text
                if (el.tag === 'textarea' && el.props) {
                    el.props = el.props.filter(p => p.name !== 'value');
                }
                break;
            }
        }
    }
}
function genAttrSegments(attrs) {
    return attrs.map(({ name, value }) => genAttrSegment(name, value));
}
function genDOMPropSegments(props, attrs) {
    const segments = [];
    props.forEach(({ name, value }) => {
        name = propsToAttrMap[name] || name.toLowerCase();
        if (isRenderableAttr(name) &&
            !(attrs && attrs.some(a => a.name === name))) {
            segments.push(genAttrSegment(name, value));
        }
    });
    return segments;
}
function genAttrSegment(name, value) {
    if (plainStringRE.test(value)) {
        // force double quote
        value = value.replace(/^'|'$/g, '"');
        // force enumerated attr to "true"
        if (isEnumeratedAttr(name) && value !== `"false"`) {
            value = `"true"`;
        }
        return {
            type: RAW,
            value: isBooleanAttr(name)
                ? ` ${name}="${name}"`
                : value === '""'
                    ? ` ${name}`
                    : ` ${name}="${JSON.parse(value)}"`
        };
    }
    else {
        return {
            type: EXPRESSION,
            value: `_ssrAttr(${JSON.stringify(name)},${value})`
        };
    }
}
function genClassSegments(staticClass, classBinding) {
    if (staticClass && !classBinding) {
        return [{ type: RAW, value: ` class="${JSON.parse(staticClass)}"` }];
    }
    else {
        return [
            {
                type: EXPRESSION,
                value: `_ssrClass(${staticClass || 'null'},${classBinding || 'null'})`
            }
        ];
    }
}
function genStyleSegments(staticStyle, parsedStaticStyle, styleBinding, vShowExpression) {
    if (staticStyle && !styleBinding && !vShowExpression) {
        return [{ type: RAW, value: ` style=${JSON.stringify(staticStyle)}` }];
    }
    else {
        return [
            {
                type: EXPRESSION,
                value: `_ssrStyle(${parsedStaticStyle || 'null'},${styleBinding || 'null'}, ${vShowExpression
                    ? `{ display: (${vShowExpression}) ? '' : 'none' }`
                    : 'null'})`
            }
        ];
    }
}

/**
 * In SSR, the vdom tree is generated only once and never patched, so
 * we can optimize most element / trees into plain string render functions.
 * The SSR optimizer walks the AST tree to detect optimizable elements and trees.
 *
 * The criteria for SSR optimizability is quite a bit looser than static tree
 * detection (which is designed for client re-render). In SSR we bail only for
 * components/slots/custom directives.
 */
// optimizability constants
const optimizability = {
    FALSE: 0,
    FULL: 1,
    SELF: 2,
    CHILDREN: 3,
    PARTIAL: 4 // self un-optimizable with some un-optimizable children
};
let isPlatformReservedTag;
function optimize(root, options) {
    if (!root)
        return;
    isPlatformReservedTag = options.isReservedTag || no;
    walk(root, true);
}
function walk(node, isRoot) {
    if (isUnOptimizableTree(node)) {
        node.ssrOptimizability = optimizability.FALSE;
        return;
    }
    // root node or nodes with custom directives should always be a VNode
    const selfUnoptimizable = isRoot || hasCustomDirective(node);
    const check = child => {
        if (child.ssrOptimizability !== optimizability.FULL) {
            node.ssrOptimizability = selfUnoptimizable
                ? optimizability.PARTIAL
                : optimizability.SELF;
        }
    };
    if (selfUnoptimizable) {
        node.ssrOptimizability = optimizability.CHILDREN;
    }
    if (node.type === 1) {
        for (let i = 0, l = node.children.length; i < l; i++) {
            const child = node.children[i];
            walk(child);
            check(child);
        }
        if (node.ifConditions) {
            for (let i = 1, l = node.ifConditions.length; i < l; i++) {
                const block = node.ifConditions[i].block;
                walk(block, isRoot);
                check(block);
            }
        }
        if (node.ssrOptimizability == null ||
            (!isRoot && (node.attrsMap['v-html'] || node.attrsMap['v-text']))) {
            node.ssrOptimizability = optimizability.FULL;
        }
        else {
            node.children = optimizeSiblings(node);
        }
    }
    else {
        node.ssrOptimizability = optimizability.FULL;
    }
}
function optimizeSiblings(el) {
    const children = el.children;
    const optimizedChildren = [];
    let currentOptimizableGroup = [];
    const pushGroup = () => {
        if (currentOptimizableGroup.length) {
            optimizedChildren.push({
                type: 1,
                parent: el,
                tag: 'template',
                attrsList: [],
                attrsMap: {},
                rawAttrsMap: {},
                children: currentOptimizableGroup,
                ssrOptimizability: optimizability.FULL
            });
        }
        currentOptimizableGroup = [];
    };
    for (let i = 0; i < children.length; i++) {
        const c = children[i];
        if (c.ssrOptimizability === optimizability.FULL) {
            currentOptimizableGroup.push(c);
        }
        else {
            // wrap fully-optimizable adjacent siblings inside a template tag
            // so that they can be optimized into a single ssrNode by codegen
            pushGroup();
            optimizedChildren.push(c);
        }
    }
    pushGroup();
    return optimizedChildren;
}
function isUnOptimizableTree(node) {
    if (node.type === 2 || node.type === 3) {
        // text or expression
        return false;
    }
    return (isBuiltInTag(node.tag) || // built-in (slot, component)
        !isPlatformReservedTag(node.tag) || // custom component
        !!node.component || // "is" component
        isSelectWithModel(node) // <select v-model> requires runtime inspection
    );
}
const isBuiltInDir = makeMap('text,html,show,on,bind,model,pre,cloak,once');
function hasCustomDirective(node) {
    return (node.type === 1 &&
        node.directives &&
        node.directives.some(d => !isBuiltInDir(d.name)));
}
// <select v-model> cannot be optimized because it requires a runtime check
// to determine proper selected option
function isSelectWithModel(node) {
    return (node.type === 1 &&
        node.tag === 'select' &&
        node.directives != null &&
        node.directives.some(d => d.name === 'model'));
}

// The SSR codegen is essentially extending the default codegen to handle
// segment types
const RAW = 0;
const INTERPOLATION = 1;
const EXPRESSION = 2;
function generate(ast, options) {
    const state = new CodegenState(options);
    const code = ast ? genSSRElement(ast, state) : '_c("div")';
    return {
        render: `with(this){return ${code}}`,
        staticRenderFns: state.staticRenderFns
    };
}
function genSSRElement(el, state) {
    if (el.for && !el.forProcessed) {
        return genFor(el, state, genSSRElement);
    }
    else if (el.if && !el.ifProcessed) {
        return genIf(el, state, genSSRElement);
    }
    else if (el.tag === 'template' && !el.slotTarget) {
        return el.ssrOptimizability === optimizability.FULL
            ? genChildrenAsStringNode(el, state)
            : genSSRChildren(el, state) || 'void 0';
    }
    switch (el.ssrOptimizability) {
        case optimizability.FULL:
            // stringify whole tree
            return genStringElement(el, state);
        case optimizability.SELF:
            // stringify self and check children
            return genStringElementWithChildren(el, state);
        case optimizability.CHILDREN:
            // generate self as VNode and stringify children
            return genNormalElement(el, state, true);
        case optimizability.PARTIAL:
            // generate self as VNode and check children
            return genNormalElement(el, state, false);
        default:
            // bail whole tree
            return genElement(el, state);
    }
}
function genNormalElement(el, state, stringifyChildren) {
    const data = el.plain ? undefined : genData(el, state);
    const children = stringifyChildren
        ? `[${genChildrenAsStringNode(el, state)}]`
        : genSSRChildren(el, state, true);
    return `_c('${el.tag}'${data ? `,${data}` : ''}${children ? `,${children}` : ''})`;
}
function genSSRChildren(el, state, checkSkip) {
    return genChildren(el, state, checkSkip, genSSRElement, genSSRNode);
}
function genSSRNode(el, state) {
    return el.type === 1 ? genSSRElement(el, state) : genText(el);
}
function genChildrenAsStringNode(el, state) {
    return el.children.length
        ? `_ssrNode(${flattenSegments(childrenToSegments(el, state))})`
        : '';
}
function genStringElement(el, state) {
    return `_ssrNode(${elementToString(el, state)})`;
}
function genStringElementWithChildren(el, state) {
    const children = genSSRChildren(el, state, true);
    return `_ssrNode(${flattenSegments(elementToOpenTagSegments(el, state))},"</${el.tag}>"${children ? `,${children}` : ''})`;
}
function elementToString(el, state) {
    return `(${flattenSegments(elementToSegments(el, state))})`;
}
function elementToSegments(el, state) {
    // v-for / v-if
    if (el.for && !el.forProcessed) {
        el.forProcessed = true;
        return [
            {
                type: EXPRESSION,
                value: genFor(el, state, elementToString, '_ssrList')
            }
        ];
    }
    else if (el.if && !el.ifProcessed) {
        el.ifProcessed = true;
        return [
            {
                type: EXPRESSION,
                value: genIf(el, state, elementToString, '"<!---->"')
            }
        ];
    }
    else if (el.tag === 'template') {
        return childrenToSegments(el, state);
    }
    const openSegments = elementToOpenTagSegments(el, state);
    const childrenSegments = childrenToSegments(el, state);
    const { isUnaryTag } = state.options;
    const close = isUnaryTag && isUnaryTag(el.tag)
        ? []
        : [{ type: RAW, value: `</${el.tag}>` }];
    return openSegments.concat(childrenSegments, close);
}
function elementToOpenTagSegments(el, state) {
    applyModelTransform(el, state);
    let binding;
    const segments = [{ type: RAW, value: `<${el.tag}` }];
    // attrs
    if (el.attrs) {
        segments.push.apply(segments, genAttrSegments(el.attrs));
    }
    // domProps
    if (el.props) {
        segments.push.apply(segments, genDOMPropSegments(el.props, el.attrs));
    }
    // v-bind="object"
    if ((binding = el.attrsMap['v-bind'])) {
        segments.push({ type: EXPRESSION, value: `_ssrAttrs(${binding})` });
    }
    // v-bind.prop="object"
    if ((binding = el.attrsMap['v-bind.prop'])) {
        segments.push({ type: EXPRESSION, value: `_ssrDOMProps(${binding})` });
    }
    // class
    if (el.staticClass || el.classBinding) {
        segments.push.apply(segments, genClassSegments(el.staticClass, el.classBinding));
    }
    // style & v-show
    if (el.staticStyle || el.styleBinding || el.attrsMap['v-show']) {
        segments.push.apply(segments, genStyleSegments(el.attrsMap.style, el.staticStyle, el.styleBinding, el.attrsMap['v-show']));
    }
    // _scopedId
    if (state.options.scopeId) {
        segments.push({ type: RAW, value: ` ${state.options.scopeId}` });
    }
    segments.push({ type: RAW, value: `>` });
    return segments;
}
function childrenToSegments(el, state) {
    let binding;
    if ((binding = el.attrsMap['v-html'])) {
        return [{ type: EXPRESSION, value: `_s(${binding})` }];
    }
    if ((binding = el.attrsMap['v-text'])) {
        return [{ type: INTERPOLATION, value: `_s(${binding})` }];
    }
    if (el.tag === 'textarea' && (binding = el.attrsMap['v-model'])) {
        return [{ type: INTERPOLATION, value: `_s(${binding})` }];
    }
    return el.children ? nodesToSegments(el.children, state) : [];
}
function nodesToSegments(children, state) {
    const segments = [];
    for (let i = 0; i < children.length; i++) {
        const c = children[i];
        if (c.type === 1) {
            segments.push.apply(segments, elementToSegments(c, state));
        }
        else if (c.type === 2) {
            segments.push({ type: INTERPOLATION, value: c.expression });
        }
        else if (c.type === 3) {
            let text = escape(c.text);
            if (c.isComment) {
                text = '<!--' + text + '-->';
            }
            segments.push({ type: RAW, value: text });
        }
    }
    return segments;
}
function flattenSegments(segments) {
    const mergedSegments = [];
    let textBuffer = '';
    const pushBuffer = () => {
        if (textBuffer) {
            mergedSegments.push(JSON.stringify(textBuffer));
            textBuffer = '';
        }
    };
    for (let i = 0; i < segments.length; i++) {
        const s = segments[i];
        if (s.type === RAW) {
            textBuffer += s.value;
        }
        else if (s.type === INTERPOLATION) {
            pushBuffer();
            mergedSegments.push(`_ssrEscape(${s.value})`);
        }
        else if (s.type === EXPRESSION) {
            pushBuffer();
            mergedSegments.push(`(${s.value})`);
        }
    }
    pushBuffer();
    return mergedSegments.join('+');
}

const createCompiler = createCompilerCreator(function baseCompile(template, options) {
    const ast = parse$1(template.trim(), options);
    optimize(ast, options);
    const code = generate(ast, options);
    return {
        ast,
        render: code.render,
        staticRenderFns: code.staticRenderFns
    };
});

const { compile, compileToFunctions } = createCompiler(baseOptions);

var _compiler = /*#__PURE__*/Object.freeze({
	__proto__: null,
	parseComponent: parseComponent,
	compile: compile$1,
	compileToFunctions: compileToFunctions$1,
	ssrCompile: compile,
	ssrCompileToFunctions: compileToFunctions,
	generateCodeFrame: generateCodeFrame
});

function compileTemplate(options) {
    const { preprocessLang } = options;
    const preprocessor = preprocessLang && consolidate[preprocessLang];
    if (preprocessor) {
        return actuallyCompile(Object.assign({}, options, {
            source: preprocess$1(options, preprocessor)
        }));
    }
    else if (preprocessLang) {
        return {
            ast: {},
            code: `var render = function () {}\n` + `var staticRenderFns = []\n`,
            source: options.source,
            tips: [
                `Component ${options.filename} uses lang ${preprocessLang} for template. Please install the language preprocessor.`
            ],
            errors: [
                `Component ${options.filename} uses lang ${preprocessLang} for template, however it is not installed.`
            ]
        };
    }
    else {
        return actuallyCompile(options);
    }
}
function preprocess$1(options, preprocessor) {
    const { source, filename, preprocessOptions } = options;
    const finalPreprocessOptions = Object.assign({
        filename
    }, preprocessOptions);
    // Consolidate exposes a callback based API, but the callback is in fact
    // called synchronously for most templating engines. In our case, we have to
    // expose a synchronous API so that it is usable in Jest transforms (which
    // have to be sync because they are applied via Node.js require hooks)
    let res, err;
    preprocessor.render(source, finalPreprocessOptions, (_err, _res) => {
        if (_err)
            err = _err;
        res = _res;
    });
    if (err)
        throw err;
    return res;
}
function actuallyCompile(options) {
    const { source, compiler = _compiler, compilerOptions = {}, transpileOptions = {}, transformAssetUrls, transformAssetUrlsOptions, isProduction = process.env.NODE_ENV === 'production', isFunctional = false, optimizeSSR = false, prettify = true, isTS = false, bindings } = options;
    const compile = optimizeSSR && compiler.ssrCompile ? compiler.ssrCompile : compiler.compile;
    let finalCompilerOptions = compilerOptions;
    if (transformAssetUrls) {
        const builtInModules = [
            transformAssetUrls === true
                ? assetUrlsModule(undefined, transformAssetUrlsOptions)
                : assetUrlsModule(transformAssetUrls, transformAssetUrlsOptions),
            srcsetModule(transformAssetUrlsOptions)
        ];
        finalCompilerOptions = Object.assign({}, compilerOptions, {
            modules: [...builtInModules, ...(compilerOptions.modules || [])],
            filename: options.filename
        });
    }
    finalCompilerOptions.bindings = bindings;
    const { ast, render, staticRenderFns, tips, errors } = compile(source, finalCompilerOptions);
    if (errors && errors.length) {
        return {
            ast,
            code: `var render = function () {}\n` + `var staticRenderFns = []\n`,
            source,
            tips,
            errors
        };
    }
    else {
        // stripping `with` usage
        let code = `var __render__ = ${prefixIdentifiers(`function render(${isFunctional ? `_c,_vm` : ``}){${render}\n}`, isFunctional, isTS, transpileOptions, bindings)}\n` +
            `var __staticRenderFns__ = [${staticRenderFns.map(code => prefixIdentifiers(`function (${isFunctional ? `_c,_vm` : ``}){${code}\n}`, isFunctional, isTS, transpileOptions, bindings))}]` +
            `\n`;
        // #23 we use __render__ to avoid `render` not being prefixed by the
        // transpiler when stripping with, but revert it back to `render` to
        // maintain backwards compat
        code = code.replace(/\s__(render|staticRenderFns)__\s/g, ' $1 ');
        if (!isProduction) {
            // mark with stripped (this enables Vue to use correct runtime proxy
            // detection)
            code += `render._withStripped = true`;
            if (prettify) {
                try {
                    code = require('prettier').format(code, {
                        semi: false,
                        parser: 'babel'
                    });
                }
                catch (e) {
                    if (e.code === 'MODULE_NOT_FOUND') {
                        tips.push('The `prettify` option is on, but the dependency `prettier` is not found.\n' +
                            'Please either turn off `prettify` or manually install `prettier`.');
                    }
                    tips.push(`Failed to prettify component ${options.filename} template source after compilation.`);
                }
            }
        }
        return {
            ast,
            code,
            source,
            tips,
            errors
        };
    }
}

const trimPlugin = () => {
    return {
        postcssPlugin: 'vue-sfc-trim',
        Once(root) {
            root.walk(({ type, raws }) => {
                if (type === 'rule' || type === 'atrule') {
                    if (raws.before)
                        raws.before = '\n';
                    if ('after' in raws && raws.after)
                        raws.after = '\n';
                }
            });
        }
    };
};
trimPlugin.postcss = true;

var dist = {exports: {}};

var processor = {exports: {}};

var parser = {exports: {}};

var root$1 = {exports: {}};

var container = {exports: {}};

var node$1 = {exports: {}};

var util = {};

var unesc = {exports: {}};

(function (module, exports) {

	exports.__esModule = true;
	exports["default"] = unesc;

	// Many thanks for this post which made this migration much easier.
	// https://mathiasbynens.be/notes/css-escapes

	/**
	 * 
	 * @param {string} str 
	 * @returns {[string, number]|undefined}
	 */
	function gobbleHex(str) {
	  var lower = str.toLowerCase();
	  var hex = '';
	  var spaceTerminated = false;

	  for (var i = 0; i < 6 && lower[i] !== undefined; i++) {
	    var code = lower.charCodeAt(i); // check to see if we are dealing with a valid hex char [a-f|0-9]

	    var valid = code >= 97 && code <= 102 || code >= 48 && code <= 57; // https://drafts.csswg.org/css-syntax/#consume-escaped-code-point

	    spaceTerminated = code === 32;

	    if (!valid) {
	      break;
	    }

	    hex += lower[i];
	  }

	  if (hex.length === 0) {
	    return undefined;
	  }

	  var codePoint = parseInt(hex, 16);
	  var isSurrogate = codePoint >= 0xD800 && codePoint <= 0xDFFF; // Add special case for
	  // "If this number is zero, or is for a surrogate, or is greater than the maximum allowed code point"
	  // https://drafts.csswg.org/css-syntax/#maximum-allowed-code-point

	  if (isSurrogate || codePoint === 0x0000 || codePoint > 0x10FFFF) {
	    return ["\uFFFD", hex.length + (spaceTerminated ? 1 : 0)];
	  }

	  return [String.fromCodePoint(codePoint), hex.length + (spaceTerminated ? 1 : 0)];
	}

	var CONTAINS_ESCAPE = /\\/;

	function unesc(str) {
	  var needToProcess = CONTAINS_ESCAPE.test(str);

	  if (!needToProcess) {
	    return str;
	  }

	  var ret = "";

	  for (var i = 0; i < str.length; i++) {
	    if (str[i] === "\\") {
	      var gobbled = gobbleHex(str.slice(i + 1, i + 7));

	      if (gobbled !== undefined) {
	        ret += gobbled[0];
	        i += gobbled[1];
	        continue;
	      } // Retain a pair of \\ if double escaped `\\\\`
	      // https://github.com/postcss/postcss-selector-parser/commit/268c9a7656fb53f543dc620aa5b73a30ec3ff20e


	      if (str[i + 1] === "\\") {
	        ret += "\\";
	        i++;
	        continue;
	      } // if \\ is at the end of the string retain it
	      // https://github.com/postcss/postcss-selector-parser/commit/01a6b346e3612ce1ab20219acc26abdc259ccefb


	      if (str.length === i + 1) {
	        ret += str[i];
	      }

	      continue;
	    }

	    ret += str[i];
	  }

	  return ret;
	}

	module.exports = exports.default;
} (unesc, unesc.exports));

var getProp = {exports: {}};

(function (module, exports) {

	exports.__esModule = true;
	exports["default"] = getProp;

	function getProp(obj) {
	  for (var _len = arguments.length, props = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
	    props[_key - 1] = arguments[_key];
	  }

	  while (props.length > 0) {
	    var prop = props.shift();

	    if (!obj[prop]) {
	      return undefined;
	    }

	    obj = obj[prop];
	  }

	  return obj;
	}

	module.exports = exports.default;
} (getProp, getProp.exports));

var ensureObject = {exports: {}};

(function (module, exports) {

	exports.__esModule = true;
	exports["default"] = ensureObject;

	function ensureObject(obj) {
	  for (var _len = arguments.length, props = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
	    props[_key - 1] = arguments[_key];
	  }

	  while (props.length > 0) {
	    var prop = props.shift();

	    if (!obj[prop]) {
	      obj[prop] = {};
	    }

	    obj = obj[prop];
	  }
	}

	module.exports = exports.default;
} (ensureObject, ensureObject.exports));

var stripComments = {exports: {}};

(function (module, exports) {

	exports.__esModule = true;
	exports["default"] = stripComments;

	function stripComments(str) {
	  var s = "";
	  var commentStart = str.indexOf("/*");
	  var lastEnd = 0;

	  while (commentStart >= 0) {
	    s = s + str.slice(lastEnd, commentStart);
	    var commentEnd = str.indexOf("*/", commentStart + 2);

	    if (commentEnd < 0) {
	      return s;
	    }

	    lastEnd = commentEnd + 2;
	    commentStart = str.indexOf("/*", lastEnd);
	  }

	  s = s + str.slice(lastEnd);
	  return s;
	}

	module.exports = exports.default;
} (stripComments, stripComments.exports));

util.__esModule = true;
util.stripComments = util.ensureObject = util.getProp = util.unesc = void 0;

var _unesc = _interopRequireDefault$1(unesc.exports);

util.unesc = _unesc["default"];

var _getProp = _interopRequireDefault$1(getProp.exports);

util.getProp = _getProp["default"];

var _ensureObject = _interopRequireDefault$1(ensureObject.exports);

util.ensureObject = _ensureObject["default"];

var _stripComments = _interopRequireDefault$1(stripComments.exports);

util.stripComments = _stripComments["default"];

function _interopRequireDefault$1(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

(function (module, exports) {

	exports.__esModule = true;
	exports["default"] = void 0;

	var _util = util;

	function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

	function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

	var cloneNode = function cloneNode(obj, parent) {
	  if (typeof obj !== 'object' || obj === null) {
	    return obj;
	  }

	  var cloned = new obj.constructor();

	  for (var i in obj) {
	    if (!obj.hasOwnProperty(i)) {
	      continue;
	    }

	    var value = obj[i];
	    var type = typeof value;

	    if (i === 'parent' && type === 'object') {
	      if (parent) {
	        cloned[i] = parent;
	      }
	    } else if (value instanceof Array) {
	      cloned[i] = value.map(function (j) {
	        return cloneNode(j, cloned);
	      });
	    } else {
	      cloned[i] = cloneNode(value, cloned);
	    }
	  }

	  return cloned;
	};

	var Node = /*#__PURE__*/function () {
	  function Node(opts) {
	    if (opts === void 0) {
	      opts = {};
	    }

	    Object.assign(this, opts);
	    this.spaces = this.spaces || {};
	    this.spaces.before = this.spaces.before || '';
	    this.spaces.after = this.spaces.after || '';
	  }

	  var _proto = Node.prototype;

	  _proto.remove = function remove() {
	    if (this.parent) {
	      this.parent.removeChild(this);
	    }

	    this.parent = undefined;
	    return this;
	  };

	  _proto.replaceWith = function replaceWith() {
	    if (this.parent) {
	      for (var index in arguments) {
	        this.parent.insertBefore(this, arguments[index]);
	      }

	      this.remove();
	    }

	    return this;
	  };

	  _proto.next = function next() {
	    return this.parent.at(this.parent.index(this) + 1);
	  };

	  _proto.prev = function prev() {
	    return this.parent.at(this.parent.index(this) - 1);
	  };

	  _proto.clone = function clone(overrides) {
	    if (overrides === void 0) {
	      overrides = {};
	    }

	    var cloned = cloneNode(this);

	    for (var name in overrides) {
	      cloned[name] = overrides[name];
	    }

	    return cloned;
	  }
	  /**
	   * Some non-standard syntax doesn't follow normal escaping rules for css.
	   * This allows non standard syntax to be appended to an existing property
	   * by specifying the escaped value. By specifying the escaped value,
	   * illegal characters are allowed to be directly inserted into css output.
	   * @param {string} name the property to set
	   * @param {any} value the unescaped value of the property
	   * @param {string} valueEscaped optional. the escaped value of the property.
	   */
	  ;

	  _proto.appendToPropertyAndEscape = function appendToPropertyAndEscape(name, value, valueEscaped) {
	    if (!this.raws) {
	      this.raws = {};
	    }

	    var originalValue = this[name];
	    var originalEscaped = this.raws[name];
	    this[name] = originalValue + value; // this may trigger a setter that updates raws, so it has to be set first.

	    if (originalEscaped || valueEscaped !== value) {
	      this.raws[name] = (originalEscaped || originalValue) + valueEscaped;
	    } else {
	      delete this.raws[name]; // delete any escaped value that was created by the setter.
	    }
	  }
	  /**
	   * Some non-standard syntax doesn't follow normal escaping rules for css.
	   * This allows the escaped value to be specified directly, allowing illegal
	   * characters to be directly inserted into css output.
	   * @param {string} name the property to set
	   * @param {any} value the unescaped value of the property
	   * @param {string} valueEscaped the escaped value of the property.
	   */
	  ;

	  _proto.setPropertyAndEscape = function setPropertyAndEscape(name, value, valueEscaped) {
	    if (!this.raws) {
	      this.raws = {};
	    }

	    this[name] = value; // this may trigger a setter that updates raws, so it has to be set first.

	    this.raws[name] = valueEscaped;
	  }
	  /**
	   * When you want a value to passed through to CSS directly. This method
	   * deletes the corresponding raw value causing the stringifier to fallback
	   * to the unescaped value.
	   * @param {string} name the property to set.
	   * @param {any} value The value that is both escaped and unescaped.
	   */
	  ;

	  _proto.setPropertyWithoutEscape = function setPropertyWithoutEscape(name, value) {
	    this[name] = value; // this may trigger a setter that updates raws, so it has to be set first.

	    if (this.raws) {
	      delete this.raws[name];
	    }
	  }
	  /**
	   *
	   * @param {number} line The number (starting with 1)
	   * @param {number} column The column number (starting with 1)
	   */
	  ;

	  _proto.isAtPosition = function isAtPosition(line, column) {
	    if (this.source && this.source.start && this.source.end) {
	      if (this.source.start.line > line) {
	        return false;
	      }

	      if (this.source.end.line < line) {
	        return false;
	      }

	      if (this.source.start.line === line && this.source.start.column > column) {
	        return false;
	      }

	      if (this.source.end.line === line && this.source.end.column < column) {
	        return false;
	      }

	      return true;
	    }

	    return undefined;
	  };

	  _proto.stringifyProperty = function stringifyProperty(name) {
	    return this.raws && this.raws[name] || this[name];
	  };

	  _proto.valueToString = function valueToString() {
	    return String(this.stringifyProperty("value"));
	  };

	  _proto.toString = function toString() {
	    return [this.rawSpaceBefore, this.valueToString(), this.rawSpaceAfter].join('');
	  };

	  _createClass(Node, [{
	    key: "rawSpaceBefore",
	    get: function get() {
	      var rawSpace = this.raws && this.raws.spaces && this.raws.spaces.before;

	      if (rawSpace === undefined) {
	        rawSpace = this.spaces && this.spaces.before;
	      }

	      return rawSpace || "";
	    },
	    set: function set(raw) {
	      (0, _util.ensureObject)(this, "raws", "spaces");
	      this.raws.spaces.before = raw;
	    }
	  }, {
	    key: "rawSpaceAfter",
	    get: function get() {
	      var rawSpace = this.raws && this.raws.spaces && this.raws.spaces.after;

	      if (rawSpace === undefined) {
	        rawSpace = this.spaces.after;
	      }

	      return rawSpace || "";
	    },
	    set: function set(raw) {
	      (0, _util.ensureObject)(this, "raws", "spaces");
	      this.raws.spaces.after = raw;
	    }
	  }]);

	  return Node;
	}();

	exports["default"] = Node;
	module.exports = exports.default;
} (node$1, node$1.exports));

var types = {};

types.__esModule = true;
types.UNIVERSAL = types.ATTRIBUTE = types.CLASS = types.COMBINATOR = types.COMMENT = types.ID = types.NESTING = types.PSEUDO = types.ROOT = types.SELECTOR = types.STRING = types.TAG = void 0;
var TAG = 'tag';
types.TAG = TAG;
var STRING = 'string';
types.STRING = STRING;
var SELECTOR = 'selector';
types.SELECTOR = SELECTOR;
var ROOT = 'root';
types.ROOT = ROOT;
var PSEUDO = 'pseudo';
types.PSEUDO = PSEUDO;
var NESTING = 'nesting';
types.NESTING = NESTING;
var ID = 'id';
types.ID = ID;
var COMMENT = 'comment';
types.COMMENT = COMMENT;
var COMBINATOR = 'combinator';
types.COMBINATOR = COMBINATOR;
var CLASS = 'class';
types.CLASS = CLASS;
var ATTRIBUTE = 'attribute';
types.ATTRIBUTE = ATTRIBUTE;
var UNIVERSAL = 'universal';
types.UNIVERSAL = UNIVERSAL;

(function (module, exports) {

	exports.__esModule = true;
	exports["default"] = void 0;

	var _node = _interopRequireDefault(node$1.exports);

	var types$1 = _interopRequireWildcard(types);

	function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function _getRequireWildcardCache() { return cache; }; return cache; }

	function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

	function _createForOfIteratorHelperLoose(o, allowArrayLike) { var it; if (typeof Symbol === "undefined" || o[Symbol.iterator] == null) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; return function () { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } it = o[Symbol.iterator](); return it.next.bind(it); }

	function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

	function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

	function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

	function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

	function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }

	function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

	var Container = /*#__PURE__*/function (_Node) {
	  _inheritsLoose(Container, _Node);

	  function Container(opts) {
	    var _this;

	    _this = _Node.call(this, opts) || this;

	    if (!_this.nodes) {
	      _this.nodes = [];
	    }

	    return _this;
	  }

	  var _proto = Container.prototype;

	  _proto.append = function append(selector) {
	    selector.parent = this;
	    this.nodes.push(selector);
	    return this;
	  };

	  _proto.prepend = function prepend(selector) {
	    selector.parent = this;
	    this.nodes.unshift(selector);
	    return this;
	  };

	  _proto.at = function at(index) {
	    return this.nodes[index];
	  };

	  _proto.index = function index(child) {
	    if (typeof child === 'number') {
	      return child;
	    }

	    return this.nodes.indexOf(child);
	  };

	  _proto.removeChild = function removeChild(child) {
	    child = this.index(child);
	    this.at(child).parent = undefined;
	    this.nodes.splice(child, 1);
	    var index;

	    for (var id in this.indexes) {
	      index = this.indexes[id];

	      if (index >= child) {
	        this.indexes[id] = index - 1;
	      }
	    }

	    return this;
	  };

	  _proto.removeAll = function removeAll() {
	    for (var _iterator = _createForOfIteratorHelperLoose(this.nodes), _step; !(_step = _iterator()).done;) {
	      var node = _step.value;
	      node.parent = undefined;
	    }

	    this.nodes = [];
	    return this;
	  };

	  _proto.empty = function empty() {
	    return this.removeAll();
	  };

	  _proto.insertAfter = function insertAfter(oldNode, newNode) {
	    newNode.parent = this;
	    var oldIndex = this.index(oldNode);
	    this.nodes.splice(oldIndex + 1, 0, newNode);
	    newNode.parent = this;
	    var index;

	    for (var id in this.indexes) {
	      index = this.indexes[id];

	      if (oldIndex <= index) {
	        this.indexes[id] = index + 1;
	      }
	    }

	    return this;
	  };

	  _proto.insertBefore = function insertBefore(oldNode, newNode) {
	    newNode.parent = this;
	    var oldIndex = this.index(oldNode);
	    this.nodes.splice(oldIndex, 0, newNode);
	    newNode.parent = this;
	    var index;

	    for (var id in this.indexes) {
	      index = this.indexes[id];

	      if (index <= oldIndex) {
	        this.indexes[id] = index + 1;
	      }
	    }

	    return this;
	  };

	  _proto._findChildAtPosition = function _findChildAtPosition(line, col) {
	    var found = undefined;
	    this.each(function (node) {
	      if (node.atPosition) {
	        var foundChild = node.atPosition(line, col);

	        if (foundChild) {
	          found = foundChild;
	          return false;
	        }
	      } else if (node.isAtPosition(line, col)) {
	        found = node;
	        return false;
	      }
	    });
	    return found;
	  }
	  /**
	   * Return the most specific node at the line and column number given.
	   * The source location is based on the original parsed location, locations aren't
	   * updated as selector nodes are mutated.
	   * 
	   * Note that this location is relative to the location of the first character
	   * of the selector, and not the location of the selector in the overall document
	   * when used in conjunction with postcss.
	   *
	   * If not found, returns undefined.
	   * @param {number} line The line number of the node to find. (1-based index)
	   * @param {number} col  The column number of the node to find. (1-based index)
	   */
	  ;

	  _proto.atPosition = function atPosition(line, col) {
	    if (this.isAtPosition(line, col)) {
	      return this._findChildAtPosition(line, col) || this;
	    } else {
	      return undefined;
	    }
	  };

	  _proto._inferEndPosition = function _inferEndPosition() {
	    if (this.last && this.last.source && this.last.source.end) {
	      this.source = this.source || {};
	      this.source.end = this.source.end || {};
	      Object.assign(this.source.end, this.last.source.end);
	    }
	  };

	  _proto.each = function each(callback) {
	    if (!this.lastEach) {
	      this.lastEach = 0;
	    }

	    if (!this.indexes) {
	      this.indexes = {};
	    }

	    this.lastEach++;
	    var id = this.lastEach;
	    this.indexes[id] = 0;

	    if (!this.length) {
	      return undefined;
	    }

	    var index, result;

	    while (this.indexes[id] < this.length) {
	      index = this.indexes[id];
	      result = callback(this.at(index), index);

	      if (result === false) {
	        break;
	      }

	      this.indexes[id] += 1;
	    }

	    delete this.indexes[id];

	    if (result === false) {
	      return false;
	    }
	  };

	  _proto.walk = function walk(callback) {
	    return this.each(function (node, i) {
	      var result = callback(node, i);

	      if (result !== false && node.length) {
	        result = node.walk(callback);
	      }

	      if (result === false) {
	        return false;
	      }
	    });
	  };

	  _proto.walkAttributes = function walkAttributes(callback) {
	    var _this2 = this;

	    return this.walk(function (selector) {
	      if (selector.type === types$1.ATTRIBUTE) {
	        return callback.call(_this2, selector);
	      }
	    });
	  };

	  _proto.walkClasses = function walkClasses(callback) {
	    var _this3 = this;

	    return this.walk(function (selector) {
	      if (selector.type === types$1.CLASS) {
	        return callback.call(_this3, selector);
	      }
	    });
	  };

	  _proto.walkCombinators = function walkCombinators(callback) {
	    var _this4 = this;

	    return this.walk(function (selector) {
	      if (selector.type === types$1.COMBINATOR) {
	        return callback.call(_this4, selector);
	      }
	    });
	  };

	  _proto.walkComments = function walkComments(callback) {
	    var _this5 = this;

	    return this.walk(function (selector) {
	      if (selector.type === types$1.COMMENT) {
	        return callback.call(_this5, selector);
	      }
	    });
	  };

	  _proto.walkIds = function walkIds(callback) {
	    var _this6 = this;

	    return this.walk(function (selector) {
	      if (selector.type === types$1.ID) {
	        return callback.call(_this6, selector);
	      }
	    });
	  };

	  _proto.walkNesting = function walkNesting(callback) {
	    var _this7 = this;

	    return this.walk(function (selector) {
	      if (selector.type === types$1.NESTING) {
	        return callback.call(_this7, selector);
	      }
	    });
	  };

	  _proto.walkPseudos = function walkPseudos(callback) {
	    var _this8 = this;

	    return this.walk(function (selector) {
	      if (selector.type === types$1.PSEUDO) {
	        return callback.call(_this8, selector);
	      }
	    });
	  };

	  _proto.walkTags = function walkTags(callback) {
	    var _this9 = this;

	    return this.walk(function (selector) {
	      if (selector.type === types$1.TAG) {
	        return callback.call(_this9, selector);
	      }
	    });
	  };

	  _proto.walkUniversals = function walkUniversals(callback) {
	    var _this10 = this;

	    return this.walk(function (selector) {
	      if (selector.type === types$1.UNIVERSAL) {
	        return callback.call(_this10, selector);
	      }
	    });
	  };

	  _proto.split = function split(callback) {
	    var _this11 = this;

	    var current = [];
	    return this.reduce(function (memo, node, index) {
	      var split = callback.call(_this11, node);
	      current.push(node);

	      if (split) {
	        memo.push(current);
	        current = [];
	      } else if (index === _this11.length - 1) {
	        memo.push(current);
	      }

	      return memo;
	    }, []);
	  };

	  _proto.map = function map(callback) {
	    return this.nodes.map(callback);
	  };

	  _proto.reduce = function reduce(callback, memo) {
	    return this.nodes.reduce(callback, memo);
	  };

	  _proto.every = function every(callback) {
	    return this.nodes.every(callback);
	  };

	  _proto.some = function some(callback) {
	    return this.nodes.some(callback);
	  };

	  _proto.filter = function filter(callback) {
	    return this.nodes.filter(callback);
	  };

	  _proto.sort = function sort(callback) {
	    return this.nodes.sort(callback);
	  };

	  _proto.toString = function toString() {
	    return this.map(String).join('');
	  };

	  _createClass(Container, [{
	    key: "first",
	    get: function get() {
	      return this.at(0);
	    }
	  }, {
	    key: "last",
	    get: function get() {
	      return this.at(this.length - 1);
	    }
	  }, {
	    key: "length",
	    get: function get() {
	      return this.nodes.length;
	    }
	  }]);

	  return Container;
	}(_node["default"]);

	exports["default"] = Container;
	module.exports = exports.default;
} (container, container.exports));

(function (module, exports) {

	exports.__esModule = true;
	exports["default"] = void 0;

	var _container = _interopRequireDefault(container.exports);

	var _types = types;

	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

	function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

	function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

	function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }

	function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

	var Root = /*#__PURE__*/function (_Container) {
	  _inheritsLoose(Root, _Container);

	  function Root(opts) {
	    var _this;

	    _this = _Container.call(this, opts) || this;
	    _this.type = _types.ROOT;
	    return _this;
	  }

	  var _proto = Root.prototype;

	  _proto.toString = function toString() {
	    var str = this.reduce(function (memo, selector) {
	      memo.push(String(selector));
	      return memo;
	    }, []).join(',');
	    return this.trailingComma ? str + ',' : str;
	  };

	  _proto.error = function error(message, options) {
	    if (this._error) {
	      return this._error(message, options);
	    } else {
	      return new Error(message);
	    }
	  };

	  _createClass(Root, [{
	    key: "errorGenerator",
	    set: function set(handler) {
	      this._error = handler;
	    }
	  }]);

	  return Root;
	}(_container["default"]);

	exports["default"] = Root;
	module.exports = exports.default;
} (root$1, root$1.exports));

var selector$1 = {exports: {}};

(function (module, exports) {

	exports.__esModule = true;
	exports["default"] = void 0;

	var _container = _interopRequireDefault(container.exports);

	var _types = types;

	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

	function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }

	function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

	var Selector = /*#__PURE__*/function (_Container) {
	  _inheritsLoose(Selector, _Container);

	  function Selector(opts) {
	    var _this;

	    _this = _Container.call(this, opts) || this;
	    _this.type = _types.SELECTOR;
	    return _this;
	  }

	  return Selector;
	}(_container["default"]);

	exports["default"] = Selector;
	module.exports = exports.default;
} (selector$1, selector$1.exports));

var className$1 = {exports: {}};

/*! https://mths.be/cssesc v3.0.0 by @mathias */

var object = {};
var hasOwnProperty = object.hasOwnProperty;
var merge$1 = function merge(options, defaults) {
	if (!options) {
		return defaults;
	}
	var result = {};
	for (var key in defaults) {
		// `if (defaults.hasOwnProperty(key) { … }` is not needed here, since
		// only recognized option names are used.
		result[key] = hasOwnProperty.call(options, key) ? options[key] : defaults[key];
	}
	return result;
};

var regexAnySingleEscape = /[ -,\.\/:-@\[-\^`\{-~]/;
var regexSingleEscape = /[ -,\.\/:-@\[\]\^`\{-~]/;
var regexExcessiveSpaces = /(^|\\+)?(\\[A-F0-9]{1,6})\x20(?![a-fA-F0-9\x20])/g;

// https://mathiasbynens.be/notes/css-escapes#css
var cssesc = function cssesc(string, options) {
	options = merge$1(options, cssesc.options);
	if (options.quotes != 'single' && options.quotes != 'double') {
		options.quotes = 'single';
	}
	var quote = options.quotes == 'double' ? '"' : '\'';
	var isIdentifier = options.isIdentifier;

	var firstChar = string.charAt(0);
	var output = '';
	var counter = 0;
	var length = string.length;
	while (counter < length) {
		var character = string.charAt(counter++);
		var codePoint = character.charCodeAt();
		var value = void 0;
		// If it’s not a printable ASCII character…
		if (codePoint < 0x20 || codePoint > 0x7E) {
			if (codePoint >= 0xD800 && codePoint <= 0xDBFF && counter < length) {
				// It’s a high surrogate, and there is a next character.
				var extra = string.charCodeAt(counter++);
				if ((extra & 0xFC00) == 0xDC00) {
					// next character is low surrogate
					codePoint = ((codePoint & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000;
				} else {
					// It’s an unmatched surrogate; only append this code unit, in case
					// the next code unit is the high surrogate of a surrogate pair.
					counter--;
				}
			}
			value = '\\' + codePoint.toString(16).toUpperCase() + ' ';
		} else {
			if (options.escapeEverything) {
				if (regexAnySingleEscape.test(character)) {
					value = '\\' + character;
				} else {
					value = '\\' + codePoint.toString(16).toUpperCase() + ' ';
				}
			} else if (/[\t\n\f\r\x0B]/.test(character)) {
				value = '\\' + codePoint.toString(16).toUpperCase() + ' ';
			} else if (character == '\\' || !isIdentifier && (character == '"' && quote == character || character == '\'' && quote == character) || isIdentifier && regexSingleEscape.test(character)) {
				value = '\\' + character;
			} else {
				value = character;
			}
		}
		output += value;
	}

	if (isIdentifier) {
		if (/^-[-\d]/.test(output)) {
			output = '\\-' + output.slice(1);
		} else if (/\d/.test(firstChar)) {
			output = '\\3' + firstChar + ' ' + output.slice(1);
		}
	}

	// Remove spaces after `\HEX` escapes that are not followed by a hex digit,
	// since they’re redundant. Note that this is only possible if the escape
	// sequence isn’t preceded by an odd number of backslashes.
	output = output.replace(regexExcessiveSpaces, function ($0, $1, $2) {
		if ($1 && $1.length % 2) {
			// It’s not safe to remove the space, so don’t.
			return $0;
		}
		// Strip the space.
		return ($1 || '') + $2;
	});

	if (!isIdentifier && options.wrap) {
		return quote + output + quote;
	}
	return output;
};

// Expose default options (so they can be overridden globally).
cssesc.options = {
	'escapeEverything': false,
	'isIdentifier': false,
	'quotes': 'single',
	'wrap': false
};

cssesc.version = '3.0.0';

var cssesc_1 = cssesc;

(function (module, exports) {

	exports.__esModule = true;
	exports["default"] = void 0;

	var _cssesc = _interopRequireDefault(cssesc_1);

	var _util = util;

	var _node = _interopRequireDefault(node$1.exports);

	var _types = types;

	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

	function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

	function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

	function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }

	function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

	var ClassName = /*#__PURE__*/function (_Node) {
	  _inheritsLoose(ClassName, _Node);

	  function ClassName(opts) {
	    var _this;

	    _this = _Node.call(this, opts) || this;
	    _this.type = _types.CLASS;
	    _this._constructed = true;
	    return _this;
	  }

	  var _proto = ClassName.prototype;

	  _proto.valueToString = function valueToString() {
	    return '.' + _Node.prototype.valueToString.call(this);
	  };

	  _createClass(ClassName, [{
	    key: "value",
	    get: function get() {
	      return this._value;
	    },
	    set: function set(v) {
	      if (this._constructed) {
	        var escaped = (0, _cssesc["default"])(v, {
	          isIdentifier: true
	        });

	        if (escaped !== v) {
	          (0, _util.ensureObject)(this, "raws");
	          this.raws.value = escaped;
	        } else if (this.raws) {
	          delete this.raws.value;
	        }
	      }

	      this._value = v;
	    }
	  }]);

	  return ClassName;
	}(_node["default"]);

	exports["default"] = ClassName;
	module.exports = exports.default;
} (className$1, className$1.exports));

var comment$2 = {exports: {}};

(function (module, exports) {

	exports.__esModule = true;
	exports["default"] = void 0;

	var _node = _interopRequireDefault(node$1.exports);

	var _types = types;

	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

	function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }

	function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

	var Comment = /*#__PURE__*/function (_Node) {
	  _inheritsLoose(Comment, _Node);

	  function Comment(opts) {
	    var _this;

	    _this = _Node.call(this, opts) || this;
	    _this.type = _types.COMMENT;
	    return _this;
	  }

	  return Comment;
	}(_node["default"]);

	exports["default"] = Comment;
	module.exports = exports.default;
} (comment$2, comment$2.exports));

var id$1 = {exports: {}};

(function (module, exports) {

	exports.__esModule = true;
	exports["default"] = void 0;

	var _node = _interopRequireDefault(node$1.exports);

	var _types = types;

	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

	function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }

	function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

	var ID = /*#__PURE__*/function (_Node) {
	  _inheritsLoose(ID, _Node);

	  function ID(opts) {
	    var _this;

	    _this = _Node.call(this, opts) || this;
	    _this.type = _types.ID;
	    return _this;
	  }

	  var _proto = ID.prototype;

	  _proto.valueToString = function valueToString() {
	    return '#' + _Node.prototype.valueToString.call(this);
	  };

	  return ID;
	}(_node["default"]);

	exports["default"] = ID;
	module.exports = exports.default;
} (id$1, id$1.exports));

var tag$1 = {exports: {}};

var namespace = {exports: {}};

(function (module, exports) {

	exports.__esModule = true;
	exports["default"] = void 0;

	var _cssesc = _interopRequireDefault(cssesc_1);

	var _util = util;

	var _node = _interopRequireDefault(node$1.exports);

	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

	function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

	function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

	function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }

	function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

	var Namespace = /*#__PURE__*/function (_Node) {
	  _inheritsLoose(Namespace, _Node);

	  function Namespace() {
	    return _Node.apply(this, arguments) || this;
	  }

	  var _proto = Namespace.prototype;

	  _proto.qualifiedName = function qualifiedName(value) {
	    if (this.namespace) {
	      return this.namespaceString + "|" + value;
	    } else {
	      return value;
	    }
	  };

	  _proto.valueToString = function valueToString() {
	    return this.qualifiedName(_Node.prototype.valueToString.call(this));
	  };

	  _createClass(Namespace, [{
	    key: "namespace",
	    get: function get() {
	      return this._namespace;
	    },
	    set: function set(namespace) {
	      if (namespace === true || namespace === "*" || namespace === "&") {
	        this._namespace = namespace;

	        if (this.raws) {
	          delete this.raws.namespace;
	        }

	        return;
	      }

	      var escaped = (0, _cssesc["default"])(namespace, {
	        isIdentifier: true
	      });
	      this._namespace = namespace;

	      if (escaped !== namespace) {
	        (0, _util.ensureObject)(this, "raws");
	        this.raws.namespace = escaped;
	      } else if (this.raws) {
	        delete this.raws.namespace;
	      }
	    }
	  }, {
	    key: "ns",
	    get: function get() {
	      return this._namespace;
	    },
	    set: function set(namespace) {
	      this.namespace = namespace;
	    }
	  }, {
	    key: "namespaceString",
	    get: function get() {
	      if (this.namespace) {
	        var ns = this.stringifyProperty("namespace");

	        if (ns === true) {
	          return '';
	        } else {
	          return ns;
	        }
	      } else {
	        return '';
	      }
	    }
	  }]);

	  return Namespace;
	}(_node["default"]);

	exports["default"] = Namespace;
	module.exports = exports.default;
} (namespace, namespace.exports));

(function (module, exports) {

	exports.__esModule = true;
	exports["default"] = void 0;

	var _namespace = _interopRequireDefault(namespace.exports);

	var _types = types;

	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

	function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }

	function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

	var Tag = /*#__PURE__*/function (_Namespace) {
	  _inheritsLoose(Tag, _Namespace);

	  function Tag(opts) {
	    var _this;

	    _this = _Namespace.call(this, opts) || this;
	    _this.type = _types.TAG;
	    return _this;
	  }

	  return Tag;
	}(_namespace["default"]);

	exports["default"] = Tag;
	module.exports = exports.default;
} (tag$1, tag$1.exports));

var string$1 = {exports: {}};

(function (module, exports) {

	exports.__esModule = true;
	exports["default"] = void 0;

	var _node = _interopRequireDefault(node$1.exports);

	var _types = types;

	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

	function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }

	function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

	var String = /*#__PURE__*/function (_Node) {
	  _inheritsLoose(String, _Node);

	  function String(opts) {
	    var _this;

	    _this = _Node.call(this, opts) || this;
	    _this.type = _types.STRING;
	    return _this;
	  }

	  return String;
	}(_node["default"]);

	exports["default"] = String;
	module.exports = exports.default;
} (string$1, string$1.exports));

var pseudo$1 = {exports: {}};

(function (module, exports) {

	exports.__esModule = true;
	exports["default"] = void 0;

	var _container = _interopRequireDefault(container.exports);

	var _types = types;

	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

	function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }

	function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

	var Pseudo = /*#__PURE__*/function (_Container) {
	  _inheritsLoose(Pseudo, _Container);

	  function Pseudo(opts) {
	    var _this;

	    _this = _Container.call(this, opts) || this;
	    _this.type = _types.PSEUDO;
	    return _this;
	  }

	  var _proto = Pseudo.prototype;

	  _proto.toString = function toString() {
	    var params = this.length ? '(' + this.map(String).join(',') + ')' : '';
	    return [this.rawSpaceBefore, this.stringifyProperty("value"), params, this.rawSpaceAfter].join('');
	  };

	  return Pseudo;
	}(_container["default"]);

	exports["default"] = Pseudo;
	module.exports = exports.default;
} (pseudo$1, pseudo$1.exports));

var attribute$1 = {};

/**
 * For Node.js, simply re-export the core `util.deprecate` function.
 */

var node = require$$2__default["default"].deprecate;

(function (exports) {

	exports.__esModule = true;
	exports.unescapeValue = unescapeValue;
	exports["default"] = void 0;

	var _cssesc = _interopRequireDefault(cssesc_1);

	var _unesc = _interopRequireDefault(unesc.exports);

	var _namespace = _interopRequireDefault(namespace.exports);

	var _types = types;

	var _CSSESC_QUOTE_OPTIONS;

	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

	function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

	function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

	function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }

	function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

	var deprecate = node;

	var WRAPPED_IN_QUOTES = /^('|")([^]*)\1$/;
	var warnOfDeprecatedValueAssignment = deprecate(function () {}, "Assigning an attribute a value containing characters that might need to be escaped is deprecated. " + "Call attribute.setValue() instead.");
	var warnOfDeprecatedQuotedAssignment = deprecate(function () {}, "Assigning attr.quoted is deprecated and has no effect. Assign to attr.quoteMark instead.");
	var warnOfDeprecatedConstructor = deprecate(function () {}, "Constructing an Attribute selector with a value without specifying quoteMark is deprecated. Note: The value should be unescaped now.");

	function unescapeValue(value) {
	  var deprecatedUsage = false;
	  var quoteMark = null;
	  var unescaped = value;
	  var m = unescaped.match(WRAPPED_IN_QUOTES);

	  if (m) {
	    quoteMark = m[1];
	    unescaped = m[2];
	  }

	  unescaped = (0, _unesc["default"])(unescaped);

	  if (unescaped !== value) {
	    deprecatedUsage = true;
	  }

	  return {
	    deprecatedUsage: deprecatedUsage,
	    unescaped: unescaped,
	    quoteMark: quoteMark
	  };
	}

	function handleDeprecatedContructorOpts(opts) {
	  if (opts.quoteMark !== undefined) {
	    return opts;
	  }

	  if (opts.value === undefined) {
	    return opts;
	  }

	  warnOfDeprecatedConstructor();

	  var _unescapeValue = unescapeValue(opts.value),
	      quoteMark = _unescapeValue.quoteMark,
	      unescaped = _unescapeValue.unescaped;

	  if (!opts.raws) {
	    opts.raws = {};
	  }

	  if (opts.raws.value === undefined) {
	    opts.raws.value = opts.value;
	  }

	  opts.value = unescaped;
	  opts.quoteMark = quoteMark;
	  return opts;
	}

	var Attribute = /*#__PURE__*/function (_Namespace) {
	  _inheritsLoose(Attribute, _Namespace);

	  function Attribute(opts) {
	    var _this;

	    if (opts === void 0) {
	      opts = {};
	    }

	    _this = _Namespace.call(this, handleDeprecatedContructorOpts(opts)) || this;
	    _this.type = _types.ATTRIBUTE;
	    _this.raws = _this.raws || {};
	    Object.defineProperty(_this.raws, 'unquoted', {
	      get: deprecate(function () {
	        return _this.value;
	      }, "attr.raws.unquoted is deprecated. Call attr.value instead."),
	      set: deprecate(function () {
	        return _this.value;
	      }, "Setting attr.raws.unquoted is deprecated and has no effect. attr.value is unescaped by default now.")
	    });
	    _this._constructed = true;
	    return _this;
	  }
	  /**
	   * Returns the Attribute's value quoted such that it would be legal to use
	   * in the value of a css file. The original value's quotation setting
	   * used for stringification is left unchanged. See `setValue(value, options)`
	   * if you want to control the quote settings of a new value for the attribute.
	   *
	   * You can also change the quotation used for the current value by setting quoteMark.
	   *
	   * Options:
	   *   * quoteMark {'"' | "'" | null} - Use this value to quote the value. If this
	   *     option is not set, the original value for quoteMark will be used. If
	   *     indeterminate, a double quote is used. The legal values are:
	   *     * `null` - the value will be unquoted and characters will be escaped as necessary.
	   *     * `'` - the value will be quoted with a single quote and single quotes are escaped.
	   *     * `"` - the value will be quoted with a double quote and double quotes are escaped.
	   *   * preferCurrentQuoteMark {boolean} - if true, prefer the source quote mark
	   *     over the quoteMark option value.
	   *   * smart {boolean} - if true, will select a quote mark based on the value
	   *     and the other options specified here. See the `smartQuoteMark()`
	   *     method.
	   **/


	  var _proto = Attribute.prototype;

	  _proto.getQuotedValue = function getQuotedValue(options) {
	    if (options === void 0) {
	      options = {};
	    }

	    var quoteMark = this._determineQuoteMark(options);

	    var cssescopts = CSSESC_QUOTE_OPTIONS[quoteMark];
	    var escaped = (0, _cssesc["default"])(this._value, cssescopts);
	    return escaped;
	  };

	  _proto._determineQuoteMark = function _determineQuoteMark(options) {
	    return options.smart ? this.smartQuoteMark(options) : this.preferredQuoteMark(options);
	  }
	  /**
	   * Set the unescaped value with the specified quotation options. The value
	   * provided must not include any wrapping quote marks -- those quotes will
	   * be interpreted as part of the value and escaped accordingly.
	   */
	  ;

	  _proto.setValue = function setValue(value, options) {
	    if (options === void 0) {
	      options = {};
	    }

	    this._value = value;
	    this._quoteMark = this._determineQuoteMark(options);

	    this._syncRawValue();
	  }
	  /**
	   * Intelligently select a quoteMark value based on the value's contents. If
	   * the value is a legal CSS ident, it will not be quoted. Otherwise a quote
	   * mark will be picked that minimizes the number of escapes.
	   *
	   * If there's no clear winner, the quote mark from these options is used,
	   * then the source quote mark (this is inverted if `preferCurrentQuoteMark` is
	   * true). If the quoteMark is unspecified, a double quote is used.
	   *
	   * @param options This takes the quoteMark and preferCurrentQuoteMark options
	   * from the quoteValue method.
	   */
	  ;

	  _proto.smartQuoteMark = function smartQuoteMark(options) {
	    var v = this.value;
	    var numSingleQuotes = v.replace(/[^']/g, '').length;
	    var numDoubleQuotes = v.replace(/[^"]/g, '').length;

	    if (numSingleQuotes + numDoubleQuotes === 0) {
	      var escaped = (0, _cssesc["default"])(v, {
	        isIdentifier: true
	      });

	      if (escaped === v) {
	        return Attribute.NO_QUOTE;
	      } else {
	        var pref = this.preferredQuoteMark(options);

	        if (pref === Attribute.NO_QUOTE) {
	          // pick a quote mark that isn't none and see if it's smaller
	          var quote = this.quoteMark || options.quoteMark || Attribute.DOUBLE_QUOTE;
	          var opts = CSSESC_QUOTE_OPTIONS[quote];
	          var quoteValue = (0, _cssesc["default"])(v, opts);

	          if (quoteValue.length < escaped.length) {
	            return quote;
	          }
	        }

	        return pref;
	      }
	    } else if (numDoubleQuotes === numSingleQuotes) {
	      return this.preferredQuoteMark(options);
	    } else if (numDoubleQuotes < numSingleQuotes) {
	      return Attribute.DOUBLE_QUOTE;
	    } else {
	      return Attribute.SINGLE_QUOTE;
	    }
	  }
	  /**
	   * Selects the preferred quote mark based on the options and the current quote mark value.
	   * If you want the quote mark to depend on the attribute value, call `smartQuoteMark(opts)`
	   * instead.
	   */
	  ;

	  _proto.preferredQuoteMark = function preferredQuoteMark(options) {
	    var quoteMark = options.preferCurrentQuoteMark ? this.quoteMark : options.quoteMark;

	    if (quoteMark === undefined) {
	      quoteMark = options.preferCurrentQuoteMark ? options.quoteMark : this.quoteMark;
	    }

	    if (quoteMark === undefined) {
	      quoteMark = Attribute.DOUBLE_QUOTE;
	    }

	    return quoteMark;
	  };

	  _proto._syncRawValue = function _syncRawValue() {
	    var rawValue = (0, _cssesc["default"])(this._value, CSSESC_QUOTE_OPTIONS[this.quoteMark]);

	    if (rawValue === this._value) {
	      if (this.raws) {
	        delete this.raws.value;
	      }
	    } else {
	      this.raws.value = rawValue;
	    }
	  };

	  _proto._handleEscapes = function _handleEscapes(prop, value) {
	    if (this._constructed) {
	      var escaped = (0, _cssesc["default"])(value, {
	        isIdentifier: true
	      });

	      if (escaped !== value) {
	        this.raws[prop] = escaped;
	      } else {
	        delete this.raws[prop];
	      }
	    }
	  };

	  _proto._spacesFor = function _spacesFor(name) {
	    var attrSpaces = {
	      before: '',
	      after: ''
	    };
	    var spaces = this.spaces[name] || {};
	    var rawSpaces = this.raws.spaces && this.raws.spaces[name] || {};
	    return Object.assign(attrSpaces, spaces, rawSpaces);
	  };

	  _proto._stringFor = function _stringFor(name, spaceName, concat) {
	    if (spaceName === void 0) {
	      spaceName = name;
	    }

	    if (concat === void 0) {
	      concat = defaultAttrConcat;
	    }

	    var attrSpaces = this._spacesFor(spaceName);

	    return concat(this.stringifyProperty(name), attrSpaces);
	  }
	  /**
	   * returns the offset of the attribute part specified relative to the
	   * start of the node of the output string.
	   *
	   * * "ns" - alias for "namespace"
	   * * "namespace" - the namespace if it exists.
	   * * "attribute" - the attribute name
	   * * "attributeNS" - the start of the attribute or its namespace
	   * * "operator" - the match operator of the attribute
	   * * "value" - The value (string or identifier)
	   * * "insensitive" - the case insensitivity flag;
	   * @param part One of the possible values inside an attribute.
	   * @returns -1 if the name is invalid or the value doesn't exist in this attribute.
	   */
	  ;

	  _proto.offsetOf = function offsetOf(name) {
	    var count = 1;

	    var attributeSpaces = this._spacesFor("attribute");

	    count += attributeSpaces.before.length;

	    if (name === "namespace" || name === "ns") {
	      return this.namespace ? count : -1;
	    }

	    if (name === "attributeNS") {
	      return count;
	    }

	    count += this.namespaceString.length;

	    if (this.namespace) {
	      count += 1;
	    }

	    if (name === "attribute") {
	      return count;
	    }

	    count += this.stringifyProperty("attribute").length;
	    count += attributeSpaces.after.length;

	    var operatorSpaces = this._spacesFor("operator");

	    count += operatorSpaces.before.length;
	    var operator = this.stringifyProperty("operator");

	    if (name === "operator") {
	      return operator ? count : -1;
	    }

	    count += operator.length;
	    count += operatorSpaces.after.length;

	    var valueSpaces = this._spacesFor("value");

	    count += valueSpaces.before.length;
	    var value = this.stringifyProperty("value");

	    if (name === "value") {
	      return value ? count : -1;
	    }

	    count += value.length;
	    count += valueSpaces.after.length;

	    var insensitiveSpaces = this._spacesFor("insensitive");

	    count += insensitiveSpaces.before.length;

	    if (name === "insensitive") {
	      return this.insensitive ? count : -1;
	    }

	    return -1;
	  };

	  _proto.toString = function toString() {
	    var _this2 = this;

	    var selector = [this.rawSpaceBefore, '['];
	    selector.push(this._stringFor('qualifiedAttribute', 'attribute'));

	    if (this.operator && (this.value || this.value === '')) {
	      selector.push(this._stringFor('operator'));
	      selector.push(this._stringFor('value'));
	      selector.push(this._stringFor('insensitiveFlag', 'insensitive', function (attrValue, attrSpaces) {
	        if (attrValue.length > 0 && !_this2.quoted && attrSpaces.before.length === 0 && !(_this2.spaces.value && _this2.spaces.value.after)) {
	          attrSpaces.before = " ";
	        }

	        return defaultAttrConcat(attrValue, attrSpaces);
	      }));
	    }

	    selector.push(']');
	    selector.push(this.rawSpaceAfter);
	    return selector.join('');
	  };

	  _createClass(Attribute, [{
	    key: "quoted",
	    get: function get() {
	      var qm = this.quoteMark;
	      return qm === "'" || qm === '"';
	    },
	    set: function set(value) {
	      warnOfDeprecatedQuotedAssignment();
	    }
	    /**
	     * returns a single (`'`) or double (`"`) quote character if the value is quoted.
	     * returns `null` if the value is not quoted.
	     * returns `undefined` if the quotation state is unknown (this can happen when
	     * the attribute is constructed without specifying a quote mark.)
	     */

	  }, {
	    key: "quoteMark",
	    get: function get() {
	      return this._quoteMark;
	    }
	    /**
	     * Set the quote mark to be used by this attribute's value.
	     * If the quote mark changes, the raw (escaped) value at `attr.raws.value` of the attribute
	     * value is updated accordingly.
	     *
	     * @param {"'" | '"' | null} quoteMark The quote mark or `null` if the value should be unquoted.
	     */
	    ,
	    set: function set(quoteMark) {
	      if (!this._constructed) {
	        this._quoteMark = quoteMark;
	        return;
	      }

	      if (this._quoteMark !== quoteMark) {
	        this._quoteMark = quoteMark;

	        this._syncRawValue();
	      }
	    }
	  }, {
	    key: "qualifiedAttribute",
	    get: function get() {
	      return this.qualifiedName(this.raws.attribute || this.attribute);
	    }
	  }, {
	    key: "insensitiveFlag",
	    get: function get() {
	      return this.insensitive ? 'i' : '';
	    }
	  }, {
	    key: "value",
	    get: function get() {
	      return this._value;
	    }
	    /**
	     * Before 3.0, the value had to be set to an escaped value including any wrapped
	     * quote marks. In 3.0, the semantics of `Attribute.value` changed so that the value
	     * is unescaped during parsing and any quote marks are removed.
	     *
	     * Because the ambiguity of this semantic change, if you set `attr.value = newValue`,
	     * a deprecation warning is raised when the new value contains any characters that would
	     * require escaping (including if it contains wrapped quotes).
	     *
	     * Instead, you should call `attr.setValue(newValue, opts)` and pass options that describe
	     * how the new value is quoted.
	     */
	    ,
	    set: function set(v) {
	      if (this._constructed) {
	        var _unescapeValue2 = unescapeValue(v),
	            deprecatedUsage = _unescapeValue2.deprecatedUsage,
	            unescaped = _unescapeValue2.unescaped,
	            quoteMark = _unescapeValue2.quoteMark;

	        if (deprecatedUsage) {
	          warnOfDeprecatedValueAssignment();
	        }

	        if (unescaped === this._value && quoteMark === this._quoteMark) {
	          return;
	        }

	        this._value = unescaped;
	        this._quoteMark = quoteMark;

	        this._syncRawValue();
	      } else {
	        this._value = v;
	      }
	    }
	  }, {
	    key: "attribute",
	    get: function get() {
	      return this._attribute;
	    },
	    set: function set(name) {
	      this._handleEscapes("attribute", name);

	      this._attribute = name;
	    }
	  }]);

	  return Attribute;
	}(_namespace["default"]);

	exports["default"] = Attribute;
	Attribute.NO_QUOTE = null;
	Attribute.SINGLE_QUOTE = "'";
	Attribute.DOUBLE_QUOTE = '"';
	var CSSESC_QUOTE_OPTIONS = (_CSSESC_QUOTE_OPTIONS = {
	  "'": {
	    quotes: 'single',
	    wrap: true
	  },
	  '"': {
	    quotes: 'double',
	    wrap: true
	  }
	}, _CSSESC_QUOTE_OPTIONS[null] = {
	  isIdentifier: true
	}, _CSSESC_QUOTE_OPTIONS);

	function defaultAttrConcat(attrValue, attrSpaces) {
	  return "" + attrSpaces.before + attrValue + attrSpaces.after;
	}
} (attribute$1));

var universal$1 = {exports: {}};

(function (module, exports) {

	exports.__esModule = true;
	exports["default"] = void 0;

	var _namespace = _interopRequireDefault(namespace.exports);

	var _types = types;

	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

	function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }

	function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

	var Universal = /*#__PURE__*/function (_Namespace) {
	  _inheritsLoose(Universal, _Namespace);

	  function Universal(opts) {
	    var _this;

	    _this = _Namespace.call(this, opts) || this;
	    _this.type = _types.UNIVERSAL;
	    _this.value = '*';
	    return _this;
	  }

	  return Universal;
	}(_namespace["default"]);

	exports["default"] = Universal;
	module.exports = exports.default;
} (universal$1, universal$1.exports));

var combinator$2 = {exports: {}};

(function (module, exports) {

	exports.__esModule = true;
	exports["default"] = void 0;

	var _node = _interopRequireDefault(node$1.exports);

	var _types = types;

	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

	function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }

	function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

	var Combinator = /*#__PURE__*/function (_Node) {
	  _inheritsLoose(Combinator, _Node);

	  function Combinator(opts) {
	    var _this;

	    _this = _Node.call(this, opts) || this;
	    _this.type = _types.COMBINATOR;
	    return _this;
	  }

	  return Combinator;
	}(_node["default"]);

	exports["default"] = Combinator;
	module.exports = exports.default;
} (combinator$2, combinator$2.exports));

var nesting$1 = {exports: {}};

(function (module, exports) {

	exports.__esModule = true;
	exports["default"] = void 0;

	var _node = _interopRequireDefault(node$1.exports);

	var _types = types;

	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

	function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }

	function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

	var Nesting = /*#__PURE__*/function (_Node) {
	  _inheritsLoose(Nesting, _Node);

	  function Nesting(opts) {
	    var _this;

	    _this = _Node.call(this, opts) || this;
	    _this.type = _types.NESTING;
	    _this.value = '&';
	    return _this;
	  }

	  return Nesting;
	}(_node["default"]);

	exports["default"] = Nesting;
	module.exports = exports.default;
} (nesting$1, nesting$1.exports));

var sortAscending = {exports: {}};

(function (module, exports) {

	exports.__esModule = true;
	exports["default"] = sortAscending;

	function sortAscending(list) {
	  return list.sort(function (a, b) {
	    return a - b;
	  });
	}
	module.exports = exports.default;
} (sortAscending, sortAscending.exports));

var tokenize = {};

var tokenTypes = {};

tokenTypes.__esModule = true;
tokenTypes.combinator = tokenTypes.word = tokenTypes.comment = tokenTypes.str = tokenTypes.tab = tokenTypes.newline = tokenTypes.feed = tokenTypes.cr = tokenTypes.backslash = tokenTypes.bang = tokenTypes.slash = tokenTypes.doubleQuote = tokenTypes.singleQuote = tokenTypes.space = tokenTypes.greaterThan = tokenTypes.pipe = tokenTypes.equals = tokenTypes.plus = tokenTypes.caret = tokenTypes.tilde = tokenTypes.dollar = tokenTypes.closeSquare = tokenTypes.openSquare = tokenTypes.closeParenthesis = tokenTypes.openParenthesis = tokenTypes.semicolon = tokenTypes.colon = tokenTypes.comma = tokenTypes.at = tokenTypes.asterisk = tokenTypes.ampersand = void 0;
var ampersand = 38; // `&`.charCodeAt(0);

tokenTypes.ampersand = ampersand;
var asterisk = 42; // `*`.charCodeAt(0);

tokenTypes.asterisk = asterisk;
var at = 64; // `@`.charCodeAt(0);

tokenTypes.at = at;
var comma = 44; // `,`.charCodeAt(0);

tokenTypes.comma = comma;
var colon = 58; // `:`.charCodeAt(0);

tokenTypes.colon = colon;
var semicolon = 59; // `;`.charCodeAt(0);

tokenTypes.semicolon = semicolon;
var openParenthesis = 40; // `(`.charCodeAt(0);

tokenTypes.openParenthesis = openParenthesis;
var closeParenthesis = 41; // `)`.charCodeAt(0);

tokenTypes.closeParenthesis = closeParenthesis;
var openSquare = 91; // `[`.charCodeAt(0);

tokenTypes.openSquare = openSquare;
var closeSquare = 93; // `]`.charCodeAt(0);

tokenTypes.closeSquare = closeSquare;
var dollar = 36; // `$`.charCodeAt(0);

tokenTypes.dollar = dollar;
var tilde = 126; // `~`.charCodeAt(0);

tokenTypes.tilde = tilde;
var caret = 94; // `^`.charCodeAt(0);

tokenTypes.caret = caret;
var plus = 43; // `+`.charCodeAt(0);

tokenTypes.plus = plus;
var equals = 61; // `=`.charCodeAt(0);

tokenTypes.equals = equals;
var pipe = 124; // `|`.charCodeAt(0);

tokenTypes.pipe = pipe;
var greaterThan = 62; // `>`.charCodeAt(0);

tokenTypes.greaterThan = greaterThan;
var space = 32; // ` `.charCodeAt(0);

tokenTypes.space = space;
var singleQuote = 39; // `'`.charCodeAt(0);

tokenTypes.singleQuote = singleQuote;
var doubleQuote = 34; // `"`.charCodeAt(0);

tokenTypes.doubleQuote = doubleQuote;
var slash = 47; // `/`.charCodeAt(0);

tokenTypes.slash = slash;
var bang = 33; // `!`.charCodeAt(0);

tokenTypes.bang = bang;
var backslash = 92; // '\\'.charCodeAt(0);

tokenTypes.backslash = backslash;
var cr = 13; // '\r'.charCodeAt(0);

tokenTypes.cr = cr;
var feed = 12; // '\f'.charCodeAt(0);

tokenTypes.feed = feed;
var newline = 10; // '\n'.charCodeAt(0);

tokenTypes.newline = newline;
var tab = 9; // '\t'.charCodeAt(0);
// Expose aliases primarily for readability.

tokenTypes.tab = tab;
var str = singleQuote; // No good single character representation!

tokenTypes.str = str;
var comment$1 = -1;
tokenTypes.comment = comment$1;
var word = -2;
tokenTypes.word = word;
var combinator$1 = -3;
tokenTypes.combinator = combinator$1;

(function (exports) {

	exports.__esModule = true;
	exports["default"] = tokenize;
	exports.FIELDS = void 0;

	var t = _interopRequireWildcard(tokenTypes);

	var _unescapable, _wordDelimiters;

	function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function _getRequireWildcardCache() { return cache; }; return cache; }

	function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

	var unescapable = (_unescapable = {}, _unescapable[t.tab] = true, _unescapable[t.newline] = true, _unescapable[t.cr] = true, _unescapable[t.feed] = true, _unescapable);
	var wordDelimiters = (_wordDelimiters = {}, _wordDelimiters[t.space] = true, _wordDelimiters[t.tab] = true, _wordDelimiters[t.newline] = true, _wordDelimiters[t.cr] = true, _wordDelimiters[t.feed] = true, _wordDelimiters[t.ampersand] = true, _wordDelimiters[t.asterisk] = true, _wordDelimiters[t.bang] = true, _wordDelimiters[t.comma] = true, _wordDelimiters[t.colon] = true, _wordDelimiters[t.semicolon] = true, _wordDelimiters[t.openParenthesis] = true, _wordDelimiters[t.closeParenthesis] = true, _wordDelimiters[t.openSquare] = true, _wordDelimiters[t.closeSquare] = true, _wordDelimiters[t.singleQuote] = true, _wordDelimiters[t.doubleQuote] = true, _wordDelimiters[t.plus] = true, _wordDelimiters[t.pipe] = true, _wordDelimiters[t.tilde] = true, _wordDelimiters[t.greaterThan] = true, _wordDelimiters[t.equals] = true, _wordDelimiters[t.dollar] = true, _wordDelimiters[t.caret] = true, _wordDelimiters[t.slash] = true, _wordDelimiters);
	var hex = {};
	var hexChars = "0123456789abcdefABCDEF";

	for (var i = 0; i < hexChars.length; i++) {
	  hex[hexChars.charCodeAt(i)] = true;
	}
	/**
	 *  Returns the last index of the bar css word
	 * @param {string} css The string in which the word begins
	 * @param {number} start The index into the string where word's first letter occurs
	 */


	function consumeWord(css, start) {
	  var next = start;
	  var code;

	  do {
	    code = css.charCodeAt(next);

	    if (wordDelimiters[code]) {
	      return next - 1;
	    } else if (code === t.backslash) {
	      next = consumeEscape(css, next) + 1;
	    } else {
	      // All other characters are part of the word
	      next++;
	    }
	  } while (next < css.length);

	  return next - 1;
	}
	/**
	 *  Returns the last index of the escape sequence
	 * @param {string} css The string in which the sequence begins
	 * @param {number} start The index into the string where escape character (`\`) occurs.
	 */


	function consumeEscape(css, start) {
	  var next = start;
	  var code = css.charCodeAt(next + 1);

	  if (unescapable[code]) ; else if (hex[code]) {
	    var hexDigits = 0; // consume up to 6 hex chars

	    do {
	      next++;
	      hexDigits++;
	      code = css.charCodeAt(next + 1);
	    } while (hex[code] && hexDigits < 6); // if fewer than 6 hex chars, a trailing space ends the escape


	    if (hexDigits < 6 && code === t.space) {
	      next++;
	    }
	  } else {
	    // the next char is part of the current word
	    next++;
	  }

	  return next;
	}

	var FIELDS = {
	  TYPE: 0,
	  START_LINE: 1,
	  START_COL: 2,
	  END_LINE: 3,
	  END_COL: 4,
	  START_POS: 5,
	  END_POS: 6
	};
	exports.FIELDS = FIELDS;

	function tokenize(input) {
	  var tokens = [];
	  var css = input.css.valueOf();
	  var _css = css,
	      length = _css.length;
	  var offset = -1;
	  var line = 1;
	  var start = 0;
	  var end = 0;
	  var code, content, endColumn, endLine, escaped, escapePos, last, lines, next, nextLine, nextOffset, quote, tokenType;

	  function unclosed(what, fix) {
	    if (input.safe) {
	      // fyi: this is never set to true.
	      css += fix;
	      next = css.length - 1;
	    } else {
	      throw input.error('Unclosed ' + what, line, start - offset, start);
	    }
	  }

	  while (start < length) {
	    code = css.charCodeAt(start);

	    if (code === t.newline) {
	      offset = start;
	      line += 1;
	    }

	    switch (code) {
	      case t.space:
	      case t.tab:
	      case t.newline:
	      case t.cr:
	      case t.feed:
	        next = start;

	        do {
	          next += 1;
	          code = css.charCodeAt(next);

	          if (code === t.newline) {
	            offset = next;
	            line += 1;
	          }
	        } while (code === t.space || code === t.newline || code === t.tab || code === t.cr || code === t.feed);

	        tokenType = t.space;
	        endLine = line;
	        endColumn = next - offset - 1;
	        end = next;
	        break;

	      case t.plus:
	      case t.greaterThan:
	      case t.tilde:
	      case t.pipe:
	        next = start;

	        do {
	          next += 1;
	          code = css.charCodeAt(next);
	        } while (code === t.plus || code === t.greaterThan || code === t.tilde || code === t.pipe);

	        tokenType = t.combinator;
	        endLine = line;
	        endColumn = start - offset;
	        end = next;
	        break;
	      // Consume these characters as single tokens.

	      case t.asterisk:
	      case t.ampersand:
	      case t.bang:
	      case t.comma:
	      case t.equals:
	      case t.dollar:
	      case t.caret:
	      case t.openSquare:
	      case t.closeSquare:
	      case t.colon:
	      case t.semicolon:
	      case t.openParenthesis:
	      case t.closeParenthesis:
	        next = start;
	        tokenType = code;
	        endLine = line;
	        endColumn = start - offset;
	        end = next + 1;
	        break;

	      case t.singleQuote:
	      case t.doubleQuote:
	        quote = code === t.singleQuote ? "'" : '"';
	        next = start;

	        do {
	          escaped = false;
	          next = css.indexOf(quote, next + 1);

	          if (next === -1) {
	            unclosed('quote', quote);
	          }

	          escapePos = next;

	          while (css.charCodeAt(escapePos - 1) === t.backslash) {
	            escapePos -= 1;
	            escaped = !escaped;
	          }
	        } while (escaped);

	        tokenType = t.str;
	        endLine = line;
	        endColumn = start - offset;
	        end = next + 1;
	        break;

	      default:
	        if (code === t.slash && css.charCodeAt(start + 1) === t.asterisk) {
	          next = css.indexOf('*/', start + 2) + 1;

	          if (next === 0) {
	            unclosed('comment', '*/');
	          }

	          content = css.slice(start, next + 1);
	          lines = content.split('\n');
	          last = lines.length - 1;

	          if (last > 0) {
	            nextLine = line + last;
	            nextOffset = next - lines[last].length;
	          } else {
	            nextLine = line;
	            nextOffset = offset;
	          }

	          tokenType = t.comment;
	          line = nextLine;
	          endLine = nextLine;
	          endColumn = next - nextOffset;
	        } else if (code === t.slash) {
	          next = start;
	          tokenType = code;
	          endLine = line;
	          endColumn = start - offset;
	          end = next + 1;
	        } else {
	          next = consumeWord(css, start);
	          tokenType = t.word;
	          endLine = line;
	          endColumn = next - offset;
	        }

	        end = next + 1;
	        break;
	    } // Ensure that the token structure remains consistent


	    tokens.push([tokenType, // [0] Token type
	    line, // [1] Starting line
	    start - offset, // [2] Starting column
	    endLine, // [3] Ending line
	    endColumn, // [4] Ending column
	    start, // [5] Start position / Source index
	    end // [6] End position
	    ]); // Reset offset for the next token

	    if (nextOffset) {
	      offset = nextOffset;
	      nextOffset = null;
	    }

	    start = end;
	  }

	  return tokens;
	}
} (tokenize));

(function (module, exports) {

	exports.__esModule = true;
	exports["default"] = void 0;

	var _root = _interopRequireDefault(root$1.exports);

	var _selector = _interopRequireDefault(selector$1.exports);

	var _className = _interopRequireDefault(className$1.exports);

	var _comment = _interopRequireDefault(comment$2.exports);

	var _id = _interopRequireDefault(id$1.exports);

	var _tag = _interopRequireDefault(tag$1.exports);

	var _string = _interopRequireDefault(string$1.exports);

	var _pseudo = _interopRequireDefault(pseudo$1.exports);

	var _attribute = _interopRequireWildcard(attribute$1);

	var _universal = _interopRequireDefault(universal$1.exports);

	var _combinator = _interopRequireDefault(combinator$2.exports);

	var _nesting = _interopRequireDefault(nesting$1.exports);

	var _sortAscending = _interopRequireDefault(sortAscending.exports);

	var _tokenize = _interopRequireWildcard(tokenize);

	var tokens = _interopRequireWildcard(tokenTypes);

	var types$1 = _interopRequireWildcard(types);

	var _util = util;

	var _WHITESPACE_TOKENS, _Object$assign;

	function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function _getRequireWildcardCache() { return cache; }; return cache; }

	function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

	function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

	function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

	var WHITESPACE_TOKENS = (_WHITESPACE_TOKENS = {}, _WHITESPACE_TOKENS[tokens.space] = true, _WHITESPACE_TOKENS[tokens.cr] = true, _WHITESPACE_TOKENS[tokens.feed] = true, _WHITESPACE_TOKENS[tokens.newline] = true, _WHITESPACE_TOKENS[tokens.tab] = true, _WHITESPACE_TOKENS);
	var WHITESPACE_EQUIV_TOKENS = Object.assign({}, WHITESPACE_TOKENS, (_Object$assign = {}, _Object$assign[tokens.comment] = true, _Object$assign));

	function tokenStart(token) {
	  return {
	    line: token[_tokenize.FIELDS.START_LINE],
	    column: token[_tokenize.FIELDS.START_COL]
	  };
	}

	function tokenEnd(token) {
	  return {
	    line: token[_tokenize.FIELDS.END_LINE],
	    column: token[_tokenize.FIELDS.END_COL]
	  };
	}

	function getSource(startLine, startColumn, endLine, endColumn) {
	  return {
	    start: {
	      line: startLine,
	      column: startColumn
	    },
	    end: {
	      line: endLine,
	      column: endColumn
	    }
	  };
	}

	function getTokenSource(token) {
	  return getSource(token[_tokenize.FIELDS.START_LINE], token[_tokenize.FIELDS.START_COL], token[_tokenize.FIELDS.END_LINE], token[_tokenize.FIELDS.END_COL]);
	}

	function getTokenSourceSpan(startToken, endToken) {
	  if (!startToken) {
	    return undefined;
	  }

	  return getSource(startToken[_tokenize.FIELDS.START_LINE], startToken[_tokenize.FIELDS.START_COL], endToken[_tokenize.FIELDS.END_LINE], endToken[_tokenize.FIELDS.END_COL]);
	}

	function unescapeProp(node, prop) {
	  var value = node[prop];

	  if (typeof value !== "string") {
	    return;
	  }

	  if (value.indexOf("\\") !== -1) {
	    (0, _util.ensureObject)(node, 'raws');
	    node[prop] = (0, _util.unesc)(value);

	    if (node.raws[prop] === undefined) {
	      node.raws[prop] = value;
	    }
	  }

	  return node;
	}

	function indexesOf(array, item) {
	  var i = -1;
	  var indexes = [];

	  while ((i = array.indexOf(item, i + 1)) !== -1) {
	    indexes.push(i);
	  }

	  return indexes;
	}

	function uniqs() {
	  var list = Array.prototype.concat.apply([], arguments);
	  return list.filter(function (item, i) {
	    return i === list.indexOf(item);
	  });
	}

	var Parser = /*#__PURE__*/function () {
	  function Parser(rule, options) {
	    if (options === void 0) {
	      options = {};
	    }

	    this.rule = rule;
	    this.options = Object.assign({
	      lossy: false,
	      safe: false
	    }, options);
	    this.position = 0;
	    this.css = typeof this.rule === 'string' ? this.rule : this.rule.selector;
	    this.tokens = (0, _tokenize["default"])({
	      css: this.css,
	      error: this._errorGenerator(),
	      safe: this.options.safe
	    });
	    var rootSource = getTokenSourceSpan(this.tokens[0], this.tokens[this.tokens.length - 1]);
	    this.root = new _root["default"]({
	      source: rootSource
	    });
	    this.root.errorGenerator = this._errorGenerator();
	    var selector = new _selector["default"]({
	      source: {
	        start: {
	          line: 1,
	          column: 1
	        }
	      }
	    });
	    this.root.append(selector);
	    this.current = selector;
	    this.loop();
	  }

	  var _proto = Parser.prototype;

	  _proto._errorGenerator = function _errorGenerator() {
	    var _this = this;

	    return function (message, errorOptions) {
	      if (typeof _this.rule === 'string') {
	        return new Error(message);
	      }

	      return _this.rule.error(message, errorOptions);
	    };
	  };

	  _proto.attribute = function attribute() {
	    var attr = [];
	    var startingToken = this.currToken;
	    this.position++;

	    while (this.position < this.tokens.length && this.currToken[_tokenize.FIELDS.TYPE] !== tokens.closeSquare) {
	      attr.push(this.currToken);
	      this.position++;
	    }

	    if (this.currToken[_tokenize.FIELDS.TYPE] !== tokens.closeSquare) {
	      return this.expected('closing square bracket', this.currToken[_tokenize.FIELDS.START_POS]);
	    }

	    var len = attr.length;
	    var node = {
	      source: getSource(startingToken[1], startingToken[2], this.currToken[3], this.currToken[4]),
	      sourceIndex: startingToken[_tokenize.FIELDS.START_POS]
	    };

	    if (len === 1 && !~[tokens.word].indexOf(attr[0][_tokenize.FIELDS.TYPE])) {
	      return this.expected('attribute', attr[0][_tokenize.FIELDS.START_POS]);
	    }

	    var pos = 0;
	    var spaceBefore = '';
	    var commentBefore = '';
	    var lastAdded = null;
	    var spaceAfterMeaningfulToken = false;

	    while (pos < len) {
	      var token = attr[pos];
	      var content = this.content(token);
	      var next = attr[pos + 1];

	      switch (token[_tokenize.FIELDS.TYPE]) {
	        case tokens.space:
	          // if (
	          //     len === 1 ||
	          //     pos === 0 && this.content(next) === '|'
	          // ) {
	          //     return this.expected('attribute', token[TOKEN.START_POS], content);
	          // }
	          spaceAfterMeaningfulToken = true;

	          if (this.options.lossy) {
	            break;
	          }

	          if (lastAdded) {
	            (0, _util.ensureObject)(node, 'spaces', lastAdded);
	            var prevContent = node.spaces[lastAdded].after || '';
	            node.spaces[lastAdded].after = prevContent + content;
	            var existingComment = (0, _util.getProp)(node, 'raws', 'spaces', lastAdded, 'after') || null;

	            if (existingComment) {
	              node.raws.spaces[lastAdded].after = existingComment + content;
	            }
	          } else {
	            spaceBefore = spaceBefore + content;
	            commentBefore = commentBefore + content;
	          }

	          break;

	        case tokens.asterisk:
	          if (next[_tokenize.FIELDS.TYPE] === tokens.equals) {
	            node.operator = content;
	            lastAdded = 'operator';
	          } else if ((!node.namespace || lastAdded === "namespace" && !spaceAfterMeaningfulToken) && next) {
	            if (spaceBefore) {
	              (0, _util.ensureObject)(node, 'spaces', 'attribute');
	              node.spaces.attribute.before = spaceBefore;
	              spaceBefore = '';
	            }

	            if (commentBefore) {
	              (0, _util.ensureObject)(node, 'raws', 'spaces', 'attribute');
	              node.raws.spaces.attribute.before = spaceBefore;
	              commentBefore = '';
	            }

	            node.namespace = (node.namespace || "") + content;
	            var rawValue = (0, _util.getProp)(node, 'raws', 'namespace') || null;

	            if (rawValue) {
	              node.raws.namespace += content;
	            }

	            lastAdded = 'namespace';
	          }

	          spaceAfterMeaningfulToken = false;
	          break;

	        case tokens.dollar:
	          if (lastAdded === "value") {
	            var oldRawValue = (0, _util.getProp)(node, 'raws', 'value');
	            node.value += "$";

	            if (oldRawValue) {
	              node.raws.value = oldRawValue + "$";
	            }

	            break;
	          }

	        // Falls through

	        case tokens.caret:
	          if (next[_tokenize.FIELDS.TYPE] === tokens.equals) {
	            node.operator = content;
	            lastAdded = 'operator';
	          }

	          spaceAfterMeaningfulToken = false;
	          break;

	        case tokens.combinator:
	          if (content === '~' && next[_tokenize.FIELDS.TYPE] === tokens.equals) {
	            node.operator = content;
	            lastAdded = 'operator';
	          }

	          if (content !== '|') {
	            spaceAfterMeaningfulToken = false;
	            break;
	          }

	          if (next[_tokenize.FIELDS.TYPE] === tokens.equals) {
	            node.operator = content;
	            lastAdded = 'operator';
	          } else if (!node.namespace && !node.attribute) {
	            node.namespace = true;
	          }

	          spaceAfterMeaningfulToken = false;
	          break;

	        case tokens.word:
	          if (next && this.content(next) === '|' && attr[pos + 2] && attr[pos + 2][_tokenize.FIELDS.TYPE] !== tokens.equals && // this look-ahead probably fails with comment nodes involved.
	          !node.operator && !node.namespace) {
	            node.namespace = content;
	            lastAdded = 'namespace';
	          } else if (!node.attribute || lastAdded === "attribute" && !spaceAfterMeaningfulToken) {
	            if (spaceBefore) {
	              (0, _util.ensureObject)(node, 'spaces', 'attribute');
	              node.spaces.attribute.before = spaceBefore;
	              spaceBefore = '';
	            }

	            if (commentBefore) {
	              (0, _util.ensureObject)(node, 'raws', 'spaces', 'attribute');
	              node.raws.spaces.attribute.before = commentBefore;
	              commentBefore = '';
	            }

	            node.attribute = (node.attribute || "") + content;

	            var _rawValue = (0, _util.getProp)(node, 'raws', 'attribute') || null;

	            if (_rawValue) {
	              node.raws.attribute += content;
	            }

	            lastAdded = 'attribute';
	          } else if (!node.value && node.value !== "" || lastAdded === "value" && !spaceAfterMeaningfulToken) {
	            var _unescaped = (0, _util.unesc)(content);

	            var _oldRawValue = (0, _util.getProp)(node, 'raws', 'value') || '';

	            var oldValue = node.value || '';
	            node.value = oldValue + _unescaped;
	            node.quoteMark = null;

	            if (_unescaped !== content || _oldRawValue) {
	              (0, _util.ensureObject)(node, 'raws');
	              node.raws.value = (_oldRawValue || oldValue) + content;
	            }

	            lastAdded = 'value';
	          } else {
	            var insensitive = content === 'i' || content === "I";

	            if ((node.value || node.value === '') && (node.quoteMark || spaceAfterMeaningfulToken)) {
	              node.insensitive = insensitive;

	              if (!insensitive || content === "I") {
	                (0, _util.ensureObject)(node, 'raws');
	                node.raws.insensitiveFlag = content;
	              }

	              lastAdded = 'insensitive';

	              if (spaceBefore) {
	                (0, _util.ensureObject)(node, 'spaces', 'insensitive');
	                node.spaces.insensitive.before = spaceBefore;
	                spaceBefore = '';
	              }

	              if (commentBefore) {
	                (0, _util.ensureObject)(node, 'raws', 'spaces', 'insensitive');
	                node.raws.spaces.insensitive.before = commentBefore;
	                commentBefore = '';
	              }
	            } else if (node.value || node.value === '') {
	              lastAdded = 'value';
	              node.value += content;

	              if (node.raws.value) {
	                node.raws.value += content;
	              }
	            }
	          }

	          spaceAfterMeaningfulToken = false;
	          break;

	        case tokens.str:
	          if (!node.attribute || !node.operator) {
	            return this.error("Expected an attribute followed by an operator preceding the string.", {
	              index: token[_tokenize.FIELDS.START_POS]
	            });
	          }

	          var _unescapeValue = (0, _attribute.unescapeValue)(content),
	              unescaped = _unescapeValue.unescaped,
	              quoteMark = _unescapeValue.quoteMark;

	          node.value = unescaped;
	          node.quoteMark = quoteMark;
	          lastAdded = 'value';
	          (0, _util.ensureObject)(node, 'raws');
	          node.raws.value = content;
	          spaceAfterMeaningfulToken = false;
	          break;

	        case tokens.equals:
	          if (!node.attribute) {
	            return this.expected('attribute', token[_tokenize.FIELDS.START_POS], content);
	          }

	          if (node.value) {
	            return this.error('Unexpected "=" found; an operator was already defined.', {
	              index: token[_tokenize.FIELDS.START_POS]
	            });
	          }

	          node.operator = node.operator ? node.operator + content : content;
	          lastAdded = 'operator';
	          spaceAfterMeaningfulToken = false;
	          break;

	        case tokens.comment:
	          if (lastAdded) {
	            if (spaceAfterMeaningfulToken || next && next[_tokenize.FIELDS.TYPE] === tokens.space || lastAdded === 'insensitive') {
	              var lastComment = (0, _util.getProp)(node, 'spaces', lastAdded, 'after') || '';
	              var rawLastComment = (0, _util.getProp)(node, 'raws', 'spaces', lastAdded, 'after') || lastComment;
	              (0, _util.ensureObject)(node, 'raws', 'spaces', lastAdded);
	              node.raws.spaces[lastAdded].after = rawLastComment + content;
	            } else {
	              var lastValue = node[lastAdded] || '';
	              var rawLastValue = (0, _util.getProp)(node, 'raws', lastAdded) || lastValue;
	              (0, _util.ensureObject)(node, 'raws');
	              node.raws[lastAdded] = rawLastValue + content;
	            }
	          } else {
	            commentBefore = commentBefore + content;
	          }

	          break;

	        default:
	          return this.error("Unexpected \"" + content + "\" found.", {
	            index: token[_tokenize.FIELDS.START_POS]
	          });
	      }

	      pos++;
	    }

	    unescapeProp(node, "attribute");
	    unescapeProp(node, "namespace");
	    this.newNode(new _attribute["default"](node));
	    this.position++;
	  }
	  /**
	   * return a node containing meaningless garbage up to (but not including) the specified token position.
	   * if the token position is negative, all remaining tokens are consumed.
	   *
	   * This returns an array containing a single string node if all whitespace,
	   * otherwise an array of comment nodes with space before and after.
	   *
	   * These tokens are not added to the current selector, the caller can add them or use them to amend
	   * a previous node's space metadata.
	   *
	   * In lossy mode, this returns only comments.
	   */
	  ;

	  _proto.parseWhitespaceEquivalentTokens = function parseWhitespaceEquivalentTokens(stopPosition) {
	    if (stopPosition < 0) {
	      stopPosition = this.tokens.length;
	    }

	    var startPosition = this.position;
	    var nodes = [];
	    var space = "";
	    var lastComment = undefined;

	    do {
	      if (WHITESPACE_TOKENS[this.currToken[_tokenize.FIELDS.TYPE]]) {
	        if (!this.options.lossy) {
	          space += this.content();
	        }
	      } else if (this.currToken[_tokenize.FIELDS.TYPE] === tokens.comment) {
	        var spaces = {};

	        if (space) {
	          spaces.before = space;
	          space = "";
	        }

	        lastComment = new _comment["default"]({
	          value: this.content(),
	          source: getTokenSource(this.currToken),
	          sourceIndex: this.currToken[_tokenize.FIELDS.START_POS],
	          spaces: spaces
	        });
	        nodes.push(lastComment);
	      }
	    } while (++this.position < stopPosition);

	    if (space) {
	      if (lastComment) {
	        lastComment.spaces.after = space;
	      } else if (!this.options.lossy) {
	        var firstToken = this.tokens[startPosition];
	        var lastToken = this.tokens[this.position - 1];
	        nodes.push(new _string["default"]({
	          value: '',
	          source: getSource(firstToken[_tokenize.FIELDS.START_LINE], firstToken[_tokenize.FIELDS.START_COL], lastToken[_tokenize.FIELDS.END_LINE], lastToken[_tokenize.FIELDS.END_COL]),
	          sourceIndex: firstToken[_tokenize.FIELDS.START_POS],
	          spaces: {
	            before: space,
	            after: ''
	          }
	        }));
	      }
	    }

	    return nodes;
	  }
	  /**
	   * 
	   * @param {*} nodes 
	   */
	  ;

	  _proto.convertWhitespaceNodesToSpace = function convertWhitespaceNodesToSpace(nodes, requiredSpace) {
	    var _this2 = this;

	    if (requiredSpace === void 0) {
	      requiredSpace = false;
	    }

	    var space = "";
	    var rawSpace = "";
	    nodes.forEach(function (n) {
	      var spaceBefore = _this2.lossySpace(n.spaces.before, requiredSpace);

	      var rawSpaceBefore = _this2.lossySpace(n.rawSpaceBefore, requiredSpace);

	      space += spaceBefore + _this2.lossySpace(n.spaces.after, requiredSpace && spaceBefore.length === 0);
	      rawSpace += spaceBefore + n.value + _this2.lossySpace(n.rawSpaceAfter, requiredSpace && rawSpaceBefore.length === 0);
	    });

	    if (rawSpace === space) {
	      rawSpace = undefined;
	    }

	    var result = {
	      space: space,
	      rawSpace: rawSpace
	    };
	    return result;
	  };

	  _proto.isNamedCombinator = function isNamedCombinator(position) {
	    if (position === void 0) {
	      position = this.position;
	    }

	    return this.tokens[position + 0] && this.tokens[position + 0][_tokenize.FIELDS.TYPE] === tokens.slash && this.tokens[position + 1] && this.tokens[position + 1][_tokenize.FIELDS.TYPE] === tokens.word && this.tokens[position + 2] && this.tokens[position + 2][_tokenize.FIELDS.TYPE] === tokens.slash;
	  };

	  _proto.namedCombinator = function namedCombinator() {
	    if (this.isNamedCombinator()) {
	      var nameRaw = this.content(this.tokens[this.position + 1]);
	      var name = (0, _util.unesc)(nameRaw).toLowerCase();
	      var raws = {};

	      if (name !== nameRaw) {
	        raws.value = "/" + nameRaw + "/";
	      }

	      var node = new _combinator["default"]({
	        value: "/" + name + "/",
	        source: getSource(this.currToken[_tokenize.FIELDS.START_LINE], this.currToken[_tokenize.FIELDS.START_COL], this.tokens[this.position + 2][_tokenize.FIELDS.END_LINE], this.tokens[this.position + 2][_tokenize.FIELDS.END_COL]),
	        sourceIndex: this.currToken[_tokenize.FIELDS.START_POS],
	        raws: raws
	      });
	      this.position = this.position + 3;
	      return node;
	    } else {
	      this.unexpected();
	    }
	  };

	  _proto.combinator = function combinator() {
	    var _this3 = this;

	    if (this.content() === '|') {
	      return this.namespace();
	    } // We need to decide between a space that's a descendant combinator and meaningless whitespace at the end of a selector.


	    var nextSigTokenPos = this.locateNextMeaningfulToken(this.position);

	    if (nextSigTokenPos < 0 || this.tokens[nextSigTokenPos][_tokenize.FIELDS.TYPE] === tokens.comma) {
	      var nodes = this.parseWhitespaceEquivalentTokens(nextSigTokenPos);

	      if (nodes.length > 0) {
	        var last = this.current.last;

	        if (last) {
	          var _this$convertWhitespa = this.convertWhitespaceNodesToSpace(nodes),
	              space = _this$convertWhitespa.space,
	              rawSpace = _this$convertWhitespa.rawSpace;

	          if (rawSpace !== undefined) {
	            last.rawSpaceAfter += rawSpace;
	          }

	          last.spaces.after += space;
	        } else {
	          nodes.forEach(function (n) {
	            return _this3.newNode(n);
	          });
	        }
	      }

	      return;
	    }

	    var firstToken = this.currToken;
	    var spaceOrDescendantSelectorNodes = undefined;

	    if (nextSigTokenPos > this.position) {
	      spaceOrDescendantSelectorNodes = this.parseWhitespaceEquivalentTokens(nextSigTokenPos);
	    }

	    var node;

	    if (this.isNamedCombinator()) {
	      node = this.namedCombinator();
	    } else if (this.currToken[_tokenize.FIELDS.TYPE] === tokens.combinator) {
	      node = new _combinator["default"]({
	        value: this.content(),
	        source: getTokenSource(this.currToken),
	        sourceIndex: this.currToken[_tokenize.FIELDS.START_POS]
	      });
	      this.position++;
	    } else if (WHITESPACE_TOKENS[this.currToken[_tokenize.FIELDS.TYPE]]) ; else if (!spaceOrDescendantSelectorNodes) {
	      this.unexpected();
	    }

	    if (node) {
	      if (spaceOrDescendantSelectorNodes) {
	        var _this$convertWhitespa2 = this.convertWhitespaceNodesToSpace(spaceOrDescendantSelectorNodes),
	            _space = _this$convertWhitespa2.space,
	            _rawSpace = _this$convertWhitespa2.rawSpace;

	        node.spaces.before = _space;
	        node.rawSpaceBefore = _rawSpace;
	      }
	    } else {
	      // descendant combinator
	      var _this$convertWhitespa3 = this.convertWhitespaceNodesToSpace(spaceOrDescendantSelectorNodes, true),
	          _space2 = _this$convertWhitespa3.space,
	          _rawSpace2 = _this$convertWhitespa3.rawSpace;

	      if (!_rawSpace2) {
	        _rawSpace2 = _space2;
	      }

	      var spaces = {};
	      var raws = {
	        spaces: {}
	      };

	      if (_space2.endsWith(' ') && _rawSpace2.endsWith(' ')) {
	        spaces.before = _space2.slice(0, _space2.length - 1);
	        raws.spaces.before = _rawSpace2.slice(0, _rawSpace2.length - 1);
	      } else if (_space2.startsWith(' ') && _rawSpace2.startsWith(' ')) {
	        spaces.after = _space2.slice(1);
	        raws.spaces.after = _rawSpace2.slice(1);
	      } else {
	        raws.value = _rawSpace2;
	      }

	      node = new _combinator["default"]({
	        value: ' ',
	        source: getTokenSourceSpan(firstToken, this.tokens[this.position - 1]),
	        sourceIndex: firstToken[_tokenize.FIELDS.START_POS],
	        spaces: spaces,
	        raws: raws
	      });
	    }

	    if (this.currToken && this.currToken[_tokenize.FIELDS.TYPE] === tokens.space) {
	      node.spaces.after = this.optionalSpace(this.content());
	      this.position++;
	    }

	    return this.newNode(node);
	  };

	  _proto.comma = function comma() {
	    if (this.position === this.tokens.length - 1) {
	      this.root.trailingComma = true;
	      this.position++;
	      return;
	    }

	    this.current._inferEndPosition();

	    var selector = new _selector["default"]({
	      source: {
	        start: tokenStart(this.tokens[this.position + 1])
	      }
	    });
	    this.current.parent.append(selector);
	    this.current = selector;
	    this.position++;
	  };

	  _proto.comment = function comment() {
	    var current = this.currToken;
	    this.newNode(new _comment["default"]({
	      value: this.content(),
	      source: getTokenSource(current),
	      sourceIndex: current[_tokenize.FIELDS.START_POS]
	    }));
	    this.position++;
	  };

	  _proto.error = function error(message, opts) {
	    throw this.root.error(message, opts);
	  };

	  _proto.missingBackslash = function missingBackslash() {
	    return this.error('Expected a backslash preceding the semicolon.', {
	      index: this.currToken[_tokenize.FIELDS.START_POS]
	    });
	  };

	  _proto.missingParenthesis = function missingParenthesis() {
	    return this.expected('opening parenthesis', this.currToken[_tokenize.FIELDS.START_POS]);
	  };

	  _proto.missingSquareBracket = function missingSquareBracket() {
	    return this.expected('opening square bracket', this.currToken[_tokenize.FIELDS.START_POS]);
	  };

	  _proto.unexpected = function unexpected() {
	    return this.error("Unexpected '" + this.content() + "'. Escaping special characters with \\ may help.", this.currToken[_tokenize.FIELDS.START_POS]);
	  };

	  _proto.namespace = function namespace() {
	    var before = this.prevToken && this.content(this.prevToken) || true;

	    if (this.nextToken[_tokenize.FIELDS.TYPE] === tokens.word) {
	      this.position++;
	      return this.word(before);
	    } else if (this.nextToken[_tokenize.FIELDS.TYPE] === tokens.asterisk) {
	      this.position++;
	      return this.universal(before);
	    }
	  };

	  _proto.nesting = function nesting() {
	    if (this.nextToken) {
	      var nextContent = this.content(this.nextToken);

	      if (nextContent === "|") {
	        this.position++;
	        return;
	      }
	    }

	    var current = this.currToken;
	    this.newNode(new _nesting["default"]({
	      value: this.content(),
	      source: getTokenSource(current),
	      sourceIndex: current[_tokenize.FIELDS.START_POS]
	    }));
	    this.position++;
	  };

	  _proto.parentheses = function parentheses() {
	    var last = this.current.last;
	    var unbalanced = 1;
	    this.position++;

	    if (last && last.type === types$1.PSEUDO) {
	      var selector = new _selector["default"]({
	        source: {
	          start: tokenStart(this.tokens[this.position - 1])
	        }
	      });
	      var cache = this.current;
	      last.append(selector);
	      this.current = selector;

	      while (this.position < this.tokens.length && unbalanced) {
	        if (this.currToken[_tokenize.FIELDS.TYPE] === tokens.openParenthesis) {
	          unbalanced++;
	        }

	        if (this.currToken[_tokenize.FIELDS.TYPE] === tokens.closeParenthesis) {
	          unbalanced--;
	        }

	        if (unbalanced) {
	          this.parse();
	        } else {
	          this.current.source.end = tokenEnd(this.currToken);
	          this.current.parent.source.end = tokenEnd(this.currToken);
	          this.position++;
	        }
	      }

	      this.current = cache;
	    } else {
	      // I think this case should be an error. It's used to implement a basic parse of media queries
	      // but I don't think it's a good idea.
	      var parenStart = this.currToken;
	      var parenValue = "(";
	      var parenEnd;

	      while (this.position < this.tokens.length && unbalanced) {
	        if (this.currToken[_tokenize.FIELDS.TYPE] === tokens.openParenthesis) {
	          unbalanced++;
	        }

	        if (this.currToken[_tokenize.FIELDS.TYPE] === tokens.closeParenthesis) {
	          unbalanced--;
	        }

	        parenEnd = this.currToken;
	        parenValue += this.parseParenthesisToken(this.currToken);
	        this.position++;
	      }

	      if (last) {
	        last.appendToPropertyAndEscape("value", parenValue, parenValue);
	      } else {
	        this.newNode(new _string["default"]({
	          value: parenValue,
	          source: getSource(parenStart[_tokenize.FIELDS.START_LINE], parenStart[_tokenize.FIELDS.START_COL], parenEnd[_tokenize.FIELDS.END_LINE], parenEnd[_tokenize.FIELDS.END_COL]),
	          sourceIndex: parenStart[_tokenize.FIELDS.START_POS]
	        }));
	      }
	    }

	    if (unbalanced) {
	      return this.expected('closing parenthesis', this.currToken[_tokenize.FIELDS.START_POS]);
	    }
	  };

	  _proto.pseudo = function pseudo() {
	    var _this4 = this;

	    var pseudoStr = '';
	    var startingToken = this.currToken;

	    while (this.currToken && this.currToken[_tokenize.FIELDS.TYPE] === tokens.colon) {
	      pseudoStr += this.content();
	      this.position++;
	    }

	    if (!this.currToken) {
	      return this.expected(['pseudo-class', 'pseudo-element'], this.position - 1);
	    }

	    if (this.currToken[_tokenize.FIELDS.TYPE] === tokens.word) {
	      this.splitWord(false, function (first, length) {
	        pseudoStr += first;

	        _this4.newNode(new _pseudo["default"]({
	          value: pseudoStr,
	          source: getTokenSourceSpan(startingToken, _this4.currToken),
	          sourceIndex: startingToken[_tokenize.FIELDS.START_POS]
	        }));

	        if (length > 1 && _this4.nextToken && _this4.nextToken[_tokenize.FIELDS.TYPE] === tokens.openParenthesis) {
	          _this4.error('Misplaced parenthesis.', {
	            index: _this4.nextToken[_tokenize.FIELDS.START_POS]
	          });
	        }
	      });
	    } else {
	      return this.expected(['pseudo-class', 'pseudo-element'], this.currToken[_tokenize.FIELDS.START_POS]);
	    }
	  };

	  _proto.space = function space() {
	    var content = this.content(); // Handle space before and after the selector

	    if (this.position === 0 || this.prevToken[_tokenize.FIELDS.TYPE] === tokens.comma || this.prevToken[_tokenize.FIELDS.TYPE] === tokens.openParenthesis || this.current.nodes.every(function (node) {
	      return node.type === 'comment';
	    })) {
	      this.spaces = this.optionalSpace(content);
	      this.position++;
	    } else if (this.position === this.tokens.length - 1 || this.nextToken[_tokenize.FIELDS.TYPE] === tokens.comma || this.nextToken[_tokenize.FIELDS.TYPE] === tokens.closeParenthesis) {
	      this.current.last.spaces.after = this.optionalSpace(content);
	      this.position++;
	    } else {
	      this.combinator();
	    }
	  };

	  _proto.string = function string() {
	    var current = this.currToken;
	    this.newNode(new _string["default"]({
	      value: this.content(),
	      source: getTokenSource(current),
	      sourceIndex: current[_tokenize.FIELDS.START_POS]
	    }));
	    this.position++;
	  };

	  _proto.universal = function universal(namespace) {
	    var nextToken = this.nextToken;

	    if (nextToken && this.content(nextToken) === '|') {
	      this.position++;
	      return this.namespace();
	    }

	    var current = this.currToken;
	    this.newNode(new _universal["default"]({
	      value: this.content(),
	      source: getTokenSource(current),
	      sourceIndex: current[_tokenize.FIELDS.START_POS]
	    }), namespace);
	    this.position++;
	  };

	  _proto.splitWord = function splitWord(namespace, firstCallback) {
	    var _this5 = this;

	    var nextToken = this.nextToken;
	    var word = this.content();

	    while (nextToken && ~[tokens.dollar, tokens.caret, tokens.equals, tokens.word].indexOf(nextToken[_tokenize.FIELDS.TYPE])) {
	      this.position++;
	      var current = this.content();
	      word += current;

	      if (current.lastIndexOf('\\') === current.length - 1) {
	        var next = this.nextToken;

	        if (next && next[_tokenize.FIELDS.TYPE] === tokens.space) {
	          word += this.requiredSpace(this.content(next));
	          this.position++;
	        }
	      }

	      nextToken = this.nextToken;
	    }

	    var hasClass = indexesOf(word, '.').filter(function (i) {
	      // Allow escaped dot within class name
	      var escapedDot = word[i - 1] === '\\'; // Allow decimal numbers percent in @keyframes

	      var isKeyframesPercent = /^\d+\.\d+%$/.test(word);
	      return !escapedDot && !isKeyframesPercent;
	    });
	    var hasId = indexesOf(word, '#').filter(function (i) {
	      return word[i - 1] !== '\\';
	    }); // Eliminate Sass interpolations from the list of id indexes

	    var interpolations = indexesOf(word, '#{');

	    if (interpolations.length) {
	      hasId = hasId.filter(function (hashIndex) {
	        return !~interpolations.indexOf(hashIndex);
	      });
	    }

	    var indices = (0, _sortAscending["default"])(uniqs([0].concat(hasClass, hasId)));
	    indices.forEach(function (ind, i) {
	      var index = indices[i + 1] || word.length;
	      var value = word.slice(ind, index);

	      if (i === 0 && firstCallback) {
	        return firstCallback.call(_this5, value, indices.length);
	      }

	      var node;
	      var current = _this5.currToken;
	      var sourceIndex = current[_tokenize.FIELDS.START_POS] + indices[i];
	      var source = getSource(current[1], current[2] + ind, current[3], current[2] + (index - 1));

	      if (~hasClass.indexOf(ind)) {
	        var classNameOpts = {
	          value: value.slice(1),
	          source: source,
	          sourceIndex: sourceIndex
	        };
	        node = new _className["default"](unescapeProp(classNameOpts, "value"));
	      } else if (~hasId.indexOf(ind)) {
	        var idOpts = {
	          value: value.slice(1),
	          source: source,
	          sourceIndex: sourceIndex
	        };
	        node = new _id["default"](unescapeProp(idOpts, "value"));
	      } else {
	        var tagOpts = {
	          value: value,
	          source: source,
	          sourceIndex: sourceIndex
	        };
	        unescapeProp(tagOpts, "value");
	        node = new _tag["default"](tagOpts);
	      }

	      _this5.newNode(node, namespace); // Ensure that the namespace is used only once


	      namespace = null;
	    });
	    this.position++;
	  };

	  _proto.word = function word(namespace) {
	    var nextToken = this.nextToken;

	    if (nextToken && this.content(nextToken) === '|') {
	      this.position++;
	      return this.namespace();
	    }

	    return this.splitWord(namespace);
	  };

	  _proto.loop = function loop() {
	    while (this.position < this.tokens.length) {
	      this.parse(true);
	    }

	    this.current._inferEndPosition();

	    return this.root;
	  };

	  _proto.parse = function parse(throwOnParenthesis) {
	    switch (this.currToken[_tokenize.FIELDS.TYPE]) {
	      case tokens.space:
	        this.space();
	        break;

	      case tokens.comment:
	        this.comment();
	        break;

	      case tokens.openParenthesis:
	        this.parentheses();
	        break;

	      case tokens.closeParenthesis:
	        if (throwOnParenthesis) {
	          this.missingParenthesis();
	        }

	        break;

	      case tokens.openSquare:
	        this.attribute();
	        break;

	      case tokens.dollar:
	      case tokens.caret:
	      case tokens.equals:
	      case tokens.word:
	        this.word();
	        break;

	      case tokens.colon:
	        this.pseudo();
	        break;

	      case tokens.comma:
	        this.comma();
	        break;

	      case tokens.asterisk:
	        this.universal();
	        break;

	      case tokens.ampersand:
	        this.nesting();
	        break;

	      case tokens.slash:
	      case tokens.combinator:
	        this.combinator();
	        break;

	      case tokens.str:
	        this.string();
	        break;
	      // These cases throw; no break needed.

	      case tokens.closeSquare:
	        this.missingSquareBracket();

	      case tokens.semicolon:
	        this.missingBackslash();

	      default:
	        this.unexpected();
	    }
	  }
	  /**
	   * Helpers
	   */
	  ;

	  _proto.expected = function expected(description, index, found) {
	    if (Array.isArray(description)) {
	      var last = description.pop();
	      description = description.join(', ') + " or " + last;
	    }

	    var an = /^[aeiou]/.test(description[0]) ? 'an' : 'a';

	    if (!found) {
	      return this.error("Expected " + an + " " + description + ".", {
	        index: index
	      });
	    }

	    return this.error("Expected " + an + " " + description + ", found \"" + found + "\" instead.", {
	      index: index
	    });
	  };

	  _proto.requiredSpace = function requiredSpace(space) {
	    return this.options.lossy ? ' ' : space;
	  };

	  _proto.optionalSpace = function optionalSpace(space) {
	    return this.options.lossy ? '' : space;
	  };

	  _proto.lossySpace = function lossySpace(space, required) {
	    if (this.options.lossy) {
	      return required ? ' ' : '';
	    } else {
	      return space;
	    }
	  };

	  _proto.parseParenthesisToken = function parseParenthesisToken(token) {
	    var content = this.content(token);

	    if (token[_tokenize.FIELDS.TYPE] === tokens.space) {
	      return this.requiredSpace(content);
	    } else {
	      return content;
	    }
	  };

	  _proto.newNode = function newNode(node, namespace) {
	    if (namespace) {
	      if (/^ +$/.test(namespace)) {
	        if (!this.options.lossy) {
	          this.spaces = (this.spaces || '') + namespace;
	        }

	        namespace = true;
	      }

	      node.namespace = namespace;
	      unescapeProp(node, "namespace");
	    }

	    if (this.spaces) {
	      node.spaces.before = this.spaces;
	      this.spaces = '';
	    }

	    return this.current.append(node);
	  };

	  _proto.content = function content(token) {
	    if (token === void 0) {
	      token = this.currToken;
	    }

	    return this.css.slice(token[_tokenize.FIELDS.START_POS], token[_tokenize.FIELDS.END_POS]);
	  };

	  /**
	   * returns the index of the next non-whitespace, non-comment token.
	   * returns -1 if no meaningful token is found.
	   */
	  _proto.locateNextMeaningfulToken = function locateNextMeaningfulToken(startPosition) {
	    if (startPosition === void 0) {
	      startPosition = this.position + 1;
	    }

	    var searchPosition = startPosition;

	    while (searchPosition < this.tokens.length) {
	      if (WHITESPACE_EQUIV_TOKENS[this.tokens[searchPosition][_tokenize.FIELDS.TYPE]]) {
	        searchPosition++;
	        continue;
	      } else {
	        return searchPosition;
	      }
	    }

	    return -1;
	  };

	  _createClass(Parser, [{
	    key: "currToken",
	    get: function get() {
	      return this.tokens[this.position];
	    }
	  }, {
	    key: "nextToken",
	    get: function get() {
	      return this.tokens[this.position + 1];
	    }
	  }, {
	    key: "prevToken",
	    get: function get() {
	      return this.tokens[this.position - 1];
	    }
	  }]);

	  return Parser;
	}();

	exports["default"] = Parser;
	module.exports = exports.default;
} (parser, parser.exports));

(function (module, exports) {

	exports.__esModule = true;
	exports["default"] = void 0;

	var _parser = _interopRequireDefault(parser.exports);

	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

	var Processor = /*#__PURE__*/function () {
	  function Processor(func, options) {
	    this.func = func || function noop() {};

	    this.funcRes = null;
	    this.options = options;
	  }

	  var _proto = Processor.prototype;

	  _proto._shouldUpdateSelector = function _shouldUpdateSelector(rule, options) {
	    if (options === void 0) {
	      options = {};
	    }

	    var merged = Object.assign({}, this.options, options);

	    if (merged.updateSelector === false) {
	      return false;
	    } else {
	      return typeof rule !== "string";
	    }
	  };

	  _proto._isLossy = function _isLossy(options) {
	    if (options === void 0) {
	      options = {};
	    }

	    var merged = Object.assign({}, this.options, options);

	    if (merged.lossless === false) {
	      return true;
	    } else {
	      return false;
	    }
	  };

	  _proto._root = function _root(rule, options) {
	    if (options === void 0) {
	      options = {};
	    }

	    var parser = new _parser["default"](rule, this._parseOptions(options));
	    return parser.root;
	  };

	  _proto._parseOptions = function _parseOptions(options) {
	    return {
	      lossy: this._isLossy(options)
	    };
	  };

	  _proto._run = function _run(rule, options) {
	    var _this = this;

	    if (options === void 0) {
	      options = {};
	    }

	    return new Promise(function (resolve, reject) {
	      try {
	        var root = _this._root(rule, options);

	        Promise.resolve(_this.func(root)).then(function (transform) {
	          var string = undefined;

	          if (_this._shouldUpdateSelector(rule, options)) {
	            string = root.toString();
	            rule.selector = string;
	          }

	          return {
	            transform: transform,
	            root: root,
	            string: string
	          };
	        }).then(resolve, reject);
	      } catch (e) {
	        reject(e);
	        return;
	      }
	    });
	  };

	  _proto._runSync = function _runSync(rule, options) {
	    if (options === void 0) {
	      options = {};
	    }

	    var root = this._root(rule, options);

	    var transform = this.func(root);

	    if (transform && typeof transform.then === "function") {
	      throw new Error("Selector processor returned a promise to a synchronous call.");
	    }

	    var string = undefined;

	    if (options.updateSelector && typeof rule !== "string") {
	      string = root.toString();
	      rule.selector = string;
	    }

	    return {
	      transform: transform,
	      root: root,
	      string: string
	    };
	  }
	  /**
	   * Process rule into a selector AST.
	   *
	   * @param rule {postcss.Rule | string} The css selector to be processed
	   * @param options The options for processing
	   * @returns {Promise<parser.Root>} The AST of the selector after processing it.
	   */
	  ;

	  _proto.ast = function ast(rule, options) {
	    return this._run(rule, options).then(function (result) {
	      return result.root;
	    });
	  }
	  /**
	   * Process rule into a selector AST synchronously.
	   *
	   * @param rule {postcss.Rule | string} The css selector to be processed
	   * @param options The options for processing
	   * @returns {parser.Root} The AST of the selector after processing it.
	   */
	  ;

	  _proto.astSync = function astSync(rule, options) {
	    return this._runSync(rule, options).root;
	  }
	  /**
	   * Process a selector into a transformed value asynchronously
	   *
	   * @param rule {postcss.Rule | string} The css selector to be processed
	   * @param options The options for processing
	   * @returns {Promise<any>} The value returned by the processor.
	   */
	  ;

	  _proto.transform = function transform(rule, options) {
	    return this._run(rule, options).then(function (result) {
	      return result.transform;
	    });
	  }
	  /**
	   * Process a selector into a transformed value synchronously.
	   *
	   * @param rule {postcss.Rule | string} The css selector to be processed
	   * @param options The options for processing
	   * @returns {any} The value returned by the processor.
	   */
	  ;

	  _proto.transformSync = function transformSync(rule, options) {
	    return this._runSync(rule, options).transform;
	  }
	  /**
	   * Process a selector into a new selector string asynchronously.
	   *
	   * @param rule {postcss.Rule | string} The css selector to be processed
	   * @param options The options for processing
	   * @returns {string} the selector after processing.
	   */
	  ;

	  _proto.process = function process(rule, options) {
	    return this._run(rule, options).then(function (result) {
	      return result.string || result.root.toString();
	    });
	  }
	  /**
	   * Process a selector into a new selector string synchronously.
	   *
	   * @param rule {postcss.Rule | string} The css selector to be processed
	   * @param options The options for processing
	   * @returns {string} the selector after processing.
	   */
	  ;

	  _proto.processSync = function processSync(rule, options) {
	    var result = this._runSync(rule, options);

	    return result.string || result.root.toString();
	  };

	  return Processor;
	}();

	exports["default"] = Processor;
	module.exports = exports.default;
} (processor, processor.exports));

var selectors = {};

var constructors = {};

constructors.__esModule = true;
constructors.universal = constructors.tag = constructors.string = constructors.selector = constructors.root = constructors.pseudo = constructors.nesting = constructors.id = constructors.comment = constructors.combinator = constructors.className = constructors.attribute = void 0;

var _attribute = _interopRequireDefault(attribute$1);

var _className = _interopRequireDefault(className$1.exports);

var _combinator = _interopRequireDefault(combinator$2.exports);

var _comment = _interopRequireDefault(comment$2.exports);

var _id = _interopRequireDefault(id$1.exports);

var _nesting = _interopRequireDefault(nesting$1.exports);

var _pseudo = _interopRequireDefault(pseudo$1.exports);

var _root = _interopRequireDefault(root$1.exports);

var _selector = _interopRequireDefault(selector$1.exports);

var _string = _interopRequireDefault(string$1.exports);

var _tag = _interopRequireDefault(tag$1.exports);

var _universal = _interopRequireDefault(universal$1.exports);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

var attribute = function attribute(opts) {
  return new _attribute["default"](opts);
};

constructors.attribute = attribute;

var className = function className(opts) {
  return new _className["default"](opts);
};

constructors.className = className;

var combinator = function combinator(opts) {
  return new _combinator["default"](opts);
};

constructors.combinator = combinator;

var comment = function comment(opts) {
  return new _comment["default"](opts);
};

constructors.comment = comment;

var id = function id(opts) {
  return new _id["default"](opts);
};

constructors.id = id;

var nesting = function nesting(opts) {
  return new _nesting["default"](opts);
};

constructors.nesting = nesting;

var pseudo = function pseudo(opts) {
  return new _pseudo["default"](opts);
};

constructors.pseudo = pseudo;

var root = function root(opts) {
  return new _root["default"](opts);
};

constructors.root = root;

var selector = function selector(opts) {
  return new _selector["default"](opts);
};

constructors.selector = selector;

var string = function string(opts) {
  return new _string["default"](opts);
};

constructors.string = string;

var tag = function tag(opts) {
  return new _tag["default"](opts);
};

constructors.tag = tag;

var universal = function universal(opts) {
  return new _universal["default"](opts);
};

constructors.universal = universal;

var guards = {};

guards.__esModule = true;
guards.isNode = isNode;
guards.isPseudoElement = isPseudoElement;
guards.isPseudoClass = isPseudoClass;
guards.isContainer = isContainer;
guards.isNamespace = isNamespace;
guards.isUniversal = guards.isTag = guards.isString = guards.isSelector = guards.isRoot = guards.isPseudo = guards.isNesting = guards.isIdentifier = guards.isComment = guards.isCombinator = guards.isClassName = guards.isAttribute = void 0;

var _types = types;

var _IS_TYPE;

var IS_TYPE = (_IS_TYPE = {}, _IS_TYPE[_types.ATTRIBUTE] = true, _IS_TYPE[_types.CLASS] = true, _IS_TYPE[_types.COMBINATOR] = true, _IS_TYPE[_types.COMMENT] = true, _IS_TYPE[_types.ID] = true, _IS_TYPE[_types.NESTING] = true, _IS_TYPE[_types.PSEUDO] = true, _IS_TYPE[_types.ROOT] = true, _IS_TYPE[_types.SELECTOR] = true, _IS_TYPE[_types.STRING] = true, _IS_TYPE[_types.TAG] = true, _IS_TYPE[_types.UNIVERSAL] = true, _IS_TYPE);

function isNode(node) {
  return typeof node === "object" && IS_TYPE[node.type];
}

function isNodeType(type, node) {
  return isNode(node) && node.type === type;
}

var isAttribute = isNodeType.bind(null, _types.ATTRIBUTE);
guards.isAttribute = isAttribute;
var isClassName = isNodeType.bind(null, _types.CLASS);
guards.isClassName = isClassName;
var isCombinator = isNodeType.bind(null, _types.COMBINATOR);
guards.isCombinator = isCombinator;
var isComment = isNodeType.bind(null, _types.COMMENT);
guards.isComment = isComment;
var isIdentifier = isNodeType.bind(null, _types.ID);
guards.isIdentifier = isIdentifier;
var isNesting = isNodeType.bind(null, _types.NESTING);
guards.isNesting = isNesting;
var isPseudo = isNodeType.bind(null, _types.PSEUDO);
guards.isPseudo = isPseudo;
var isRoot = isNodeType.bind(null, _types.ROOT);
guards.isRoot = isRoot;
var isSelector = isNodeType.bind(null, _types.SELECTOR);
guards.isSelector = isSelector;
var isString = isNodeType.bind(null, _types.STRING);
guards.isString = isString;
var isTag = isNodeType.bind(null, _types.TAG);
guards.isTag = isTag;
var isUniversal = isNodeType.bind(null, _types.UNIVERSAL);
guards.isUniversal = isUniversal;

function isPseudoElement(node) {
  return isPseudo(node) && node.value && (node.value.startsWith("::") || node.value.toLowerCase() === ":before" || node.value.toLowerCase() === ":after" || node.value.toLowerCase() === ":first-letter" || node.value.toLowerCase() === ":first-line");
}

function isPseudoClass(node) {
  return isPseudo(node) && !isPseudoElement(node);
}

function isContainer(node) {
  return !!(isNode(node) && node.walk);
}

function isNamespace(node) {
  return isAttribute(node) || isTag(node);
}

(function (exports) {

	exports.__esModule = true;

	var _types = types;

	Object.keys(_types).forEach(function (key) {
	  if (key === "default" || key === "__esModule") return;
	  if (key in exports && exports[key] === _types[key]) return;
	  exports[key] = _types[key];
	});

	var _constructors = constructors;

	Object.keys(_constructors).forEach(function (key) {
	  if (key === "default" || key === "__esModule") return;
	  if (key in exports && exports[key] === _constructors[key]) return;
	  exports[key] = _constructors[key];
	});

	var _guards = guards;

	Object.keys(_guards).forEach(function (key) {
	  if (key === "default" || key === "__esModule") return;
	  if (key in exports && exports[key] === _guards[key]) return;
	  exports[key] = _guards[key];
	});
} (selectors));

(function (module, exports) {

	exports.__esModule = true;
	exports["default"] = void 0;

	var _processor = _interopRequireDefault(processor.exports);

	var selectors$1 = _interopRequireWildcard(selectors);

	function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function _getRequireWildcardCache() { return cache; }; return cache; }

	function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

	var parser = function parser(processor) {
	  return new _processor["default"](processor);
	};

	Object.assign(parser, selectors$1);
	delete parser.__esModule;
	var _default = parser;
	exports["default"] = _default;
	module.exports = exports.default;
} (dist, dist.exports));

var selectorParser = /*@__PURE__*/getDefaultExportFromCjs(dist.exports);

const animationNameRE = /^(-\w+-)?animation-name$/;
const animationRE = /^(-\w+-)?animation$/;
const scopedPlugin = (id = '') => {
    const keyframes = Object.create(null);
    const shortId = id.replace(/^data-v-/, '');
    return {
        postcssPlugin: 'vue-sfc-scoped',
        Rule(rule) {
            processRule(id, rule);
        },
        AtRule(node) {
            if (/-?keyframes$/.test(node.name) &&
                !node.params.endsWith(`-${shortId}`)) {
                // register keyframes
                keyframes[node.params] = node.params = node.params + '-' + shortId;
            }
        },
        OnceExit(root) {
            if (Object.keys(keyframes).length) {
                // If keyframes are found in this <style>, find and rewrite animation names
                // in declarations.
                // Caveat: this only works for keyframes and animation rules in the same
                // <style> element.
                // individual animation-name declaration
                root.walkDecls(decl => {
                    if (animationNameRE.test(decl.prop)) {
                        decl.value = decl.value
                            .split(',')
                            .map(v => keyframes[v.trim()] || v.trim())
                            .join(',');
                    }
                    // shorthand
                    if (animationRE.test(decl.prop)) {
                        decl.value = decl.value
                            .split(',')
                            .map(v => {
                            const vals = v.trim().split(/\s+/);
                            const i = vals.findIndex(val => keyframes[val]);
                            if (i !== -1) {
                                vals.splice(i, 1, keyframes[vals[i]]);
                                return vals.join(' ');
                            }
                            else {
                                return v;
                            }
                        })
                            .join(',');
                    }
                });
            }
        }
    };
};
const processedRules = new WeakSet();
function processRule(id, rule) {
    if (processedRules.has(rule) ||
        (rule.parent &&
            rule.parent.type === 'atrule' &&
            /-?keyframes$/.test(rule.parent.name))) {
        return;
    }
    processedRules.add(rule);
    rule.selector = selectorParser(selectorRoot => {
        selectorRoot.each(selector => {
            rewriteSelector(id, selector, selectorRoot);
        });
    }).processSync(rule.selector);
}
function rewriteSelector(id, selector, selectorRoot) {
    let node = null;
    // find the last child node to insert attribute selector
    selector.each(n => {
        // DEPRECATED ">>>" and "/deep/" combinator
        if (n.type === 'combinator' &&
            (n.value === '>>>' || n.value === '/deep/')) {
            n.value = ' ';
            n.spaces.before = n.spaces.after = '';
            // warn(
            //   `the >>> and /deep/ combinators have been deprecated. ` +
            //     `Use :deep() instead.`
            // )
            return false;
        }
        if (n.type === 'pseudo') {
            const { value } = n;
            // deep: inject [id] attribute at the node before the ::v-deep
            // combinator.
            if (value === ':deep' || value === '::v-deep') {
                if (n.nodes.length) {
                    // .foo ::v-deep(.bar) -> .foo[xxxxxxx] .bar
                    // replace the current node with ::v-deep's inner selector
                    let last = n;
                    n.nodes[0].each(ss => {
                        selector.insertAfter(last, ss);
                        last = ss;
                    });
                    // insert a space combinator before if it doesn't already have one
                    const prev = selector.at(selector.index(n) - 1);
                    if (!prev || !isSpaceCombinator(prev)) {
                        selector.insertAfter(n, selectorParser.combinator({
                            value: ' '
                        }));
                    }
                    selector.removeChild(n);
                }
                else {
                    // DEPRECATED usage in v3
                    // .foo ::v-deep .bar -> .foo[xxxxxxx] .bar
                    // warn(
                    //   `::v-deep usage as a combinator has ` +
                    //     `been deprecated. Use :deep(<inner-selector>) instead.`
                    // )
                    const prev = selector.at(selector.index(n) - 1);
                    if (prev && isSpaceCombinator(prev)) {
                        selector.removeChild(prev);
                    }
                    selector.removeChild(n);
                }
                return false;
            }
            // !!! Vue 2 does not have :slotted support
            // ::v-slotted(.foo) -> .foo[xxxxxxx-s]
            // if (value === ':slotted' || value === '::v-slotted') {
            //   rewriteSelector(id, n.nodes[0], selectorRoot, true /* slotted */)
            //   let last: selectorParser.Selector['nodes'][0] = n
            //   n.nodes[0].each(ss => {
            //     selector.insertAfter(last, ss)
            //     last = ss
            //   })
            //   // selector.insertAfter(n, n.nodes[0])
            //   selector.removeChild(n)
            //   // since slotted attribute already scopes the selector there's no
            //   // need for the non-slot attribute.
            //   shouldInject = false
            //   return false
            // }
            // global: replace with inner selector and do not inject [id].
            // ::v-global(.foo) -> .foo
            if (value === ':global' || value === '::v-global') {
                selectorRoot.insertAfter(selector, n.nodes[0]);
                selectorRoot.removeChild(selector);
                return false;
            }
        }
        if (n.type !== 'pseudo' && n.type !== 'combinator') {
            node = n;
        }
    });
    if (node) {
        node.spaces.after = '';
    }
    else {
        // For deep selectors & standalone pseudo selectors,
        // the attribute selectors are prepended rather than appended.
        // So all leading spaces must be eliminated to avoid problems.
        selector.first.spaces.before = '';
    }
    {
        selector.insertAfter(
        // If node is null it means we need to inject [id] at the start
        // insertAfter can handle `null` here
        node, selectorParser.attribute({
            attribute: id,
            value: id,
            raws: {},
            quoteMark: `"`
        }));
    }
}
function isSpaceCombinator(node) {
    return node.type === 'combinator' && /^\s+$/.test(node.value);
}
scopedPlugin.postcss = true;

var sourceMap = require$$0__default$1["default"];
var SourceMapConsumer = sourceMap.SourceMapConsumer;
var SourceMapGenerator = sourceMap.SourceMapGenerator;

var mergeSourceMap = merge;

/**
 * Merge old source map and new source map and return merged.
 * If old or new source map value is falsy, return another one as it is.
 *
 * @param {object|string} [oldMap] old source map object
 * @param {object|string} [newmap] new source map object
 * @return {object|undefined} merged source map object, or undefined when both old and new source map are undefined
 */
function merge(oldMap, newMap) {
  if (!oldMap) return newMap
  if (!newMap) return oldMap

  var oldMapConsumer = new SourceMapConsumer(oldMap);
  var newMapConsumer = new SourceMapConsumer(newMap);
  var mergedMapGenerator = new SourceMapGenerator();

  // iterate on new map and overwrite original position of new map with one of old map
  newMapConsumer.eachMapping(function(m) {
    // pass when `originalLine` is null.
    // It occurs in case that the node does not have origin in original code.
    if (m.originalLine == null) return

    var origPosInOldMap = oldMapConsumer.originalPositionFor({
      line: m.originalLine,
      column: m.originalColumn
    });

    if (origPosInOldMap.source == null) return

    mergedMapGenerator.addMapping({
      original: {
        line: origPosInOldMap.line,
        column: origPosInOldMap.column
      },
      generated: {
        line: m.generatedLine,
        column: m.generatedColumn
      },
      source: origPosInOldMap.source,
      name: origPosInOldMap.name
    });
  });

  var consumers = [oldMapConsumer, newMapConsumer];
  consumers.forEach(function(consumer) {
    consumer.sources.forEach(function(sourceFile) {
      mergedMapGenerator._sources.add(sourceFile);
      var sourceContent = consumer.sourceContentFor(sourceFile);
      if (sourceContent != null) {
        mergedMapGenerator.setSourceContent(sourceFile, sourceContent);
      }
    });
  });

  mergedMapGenerator._sourceRoot = oldMap.sourceRoot;
  mergedMapGenerator._file = oldMap.file;

  return JSON.parse(mergedMapGenerator.toString())
}

// .scss/.sass processor
const scss = (source, map, options) => {
    const nodeSass = require('sass');
    const finalOptions = Object.assign(Object.assign({}, options), { data: getSource(source, options.filename, options.additionalData), file: options.filename, outFile: options.filename, sourceMap: !!map });
    try {
        const result = nodeSass.renderSync(finalOptions);
        const dependencies = result.stats.includedFiles;
        if (map) {
            return {
                code: result.css.toString(),
                map: mergeSourceMap(map, JSON.parse(result.map.toString())),
                errors: [],
                dependencies
            };
        }
        return { code: result.css.toString(), errors: [], dependencies };
    }
    catch (e) {
        return { code: '', errors: [e], dependencies: [] };
    }
};
const sass = (source, map, options) => scss(source, map, Object.assign(Object.assign({}, options), { indentedSyntax: true }));
// .less
const less = (source, map, options) => {
    const nodeLess = require('less');
    let result;
    let error = null;
    nodeLess.render(getSource(source, options.filename, options.additionalData), Object.assign(Object.assign({}, options), { syncImport: true }), (err, output) => {
        error = err;
        result = output;
    });
    if (error)
        return { code: '', errors: [error], dependencies: [] };
    const dependencies = result.imports;
    if (map) {
        return {
            code: result.css.toString(),
            map: mergeSourceMap(map, result.map),
            errors: [],
            dependencies: dependencies
        };
    }
    return {
        code: result.css.toString(),
        errors: [],
        dependencies: dependencies
    };
};
// .styl
const styl = (source, map, options) => {
    const nodeStylus = require('stylus');
    try {
        const ref = nodeStylus(source);
        Object.keys(options).forEach(key => ref.set(key, options[key]));
        if (map)
            ref.set('sourcemap', { inline: false, comment: false });
        const result = ref.render();
        const dependencies = ref.deps();
        if (map) {
            return {
                code: result,
                map: mergeSourceMap(map, ref.sourcemap),
                errors: [],
                dependencies
            };
        }
        return { code: result, errors: [], dependencies };
    }
    catch (e) {
        return { code: '', errors: [e], dependencies: [] };
    }
};
function getSource(source, filename, additionalData) {
    if (!additionalData)
        return source;
    if (isFunction(additionalData)) {
        return additionalData(source, filename);
    }
    return additionalData + source;
}
const processors = {
    less,
    sass,
    scss,
    styl,
    stylus: styl
};

const postcss = require('postcss');
function compileStyle(options) {
    return doCompileStyle(Object.assign(Object.assign({}, options), { isAsync: false }));
}
function compileStyleAsync(options) {
    return Promise.resolve(doCompileStyle(Object.assign(Object.assign({}, options), { isAsync: true })));
}
function doCompileStyle(options) {
    const { filename, id, scoped = true, trim = true, isProd = false, preprocessLang, postcssOptions, postcssPlugins } = options;
    const preprocessor = preprocessLang && processors[preprocessLang];
    const preProcessedSource = preprocessor && preprocess(options, preprocessor);
    const map = preProcessedSource ? preProcessedSource.map : options.map;
    const source = preProcessedSource ? preProcessedSource.code : options.source;
    const plugins = (postcssPlugins || []).slice();
    plugins.unshift(cssVarsPlugin({ id: id.replace(/^data-v-/, ''), isProd }));
    if (trim) {
        plugins.push(trimPlugin());
    }
    if (scoped) {
        plugins.push(scopedPlugin(id));
    }
    const postCSSOptions = Object.assign(Object.assign({}, postcssOptions), { to: filename, from: filename });
    if (map) {
        postCSSOptions.map = {
            inline: false,
            annotation: false,
            prev: map
        };
    }
    let result, code, outMap;
    const errors = [];
    if (preProcessedSource && preProcessedSource.errors.length) {
        errors.push(...preProcessedSource.errors);
    }
    try {
        result = postcss(plugins).process(source, postCSSOptions);
        // In async mode, return a promise.
        if (options.isAsync) {
            return result
                .then((result) => ({
                code: result.css || '',
                map: result.map && result.map.toJSON(),
                errors,
                rawResult: result
            }))
                .catch((error) => ({
                code: '',
                map: undefined,
                errors: [...errors, error.message],
                rawResult: undefined
            }));
        }
        // force synchronous transform (we know we only have sync plugins)
        code = result.css;
        outMap = result.map;
    }
    catch (e) {
        errors.push(e);
    }
    return {
        code: code || ``,
        map: outMap && outMap.toJSON(),
        errors,
        rawResult: result
    };
}
function preprocess(options, preprocessor) {
    return preprocessor(options.source, options.map, Object.assign({
        filename: options.filename
    }, options.preprocessOptions));
}

exports.compileScript = compileScript;
exports.compileStyle = compileStyle;
exports.compileStyleAsync = compileStyleAsync;
exports.compileTemplate = compileTemplate;
exports.generateCodeFrame = generateCodeFrame;
exports.parse = parse;
exports.parseComponent = parseComponent;
exports.rewriteDefault = rewriteDefault;