text: /*
    @license
  	Rollup.js v2.75.1
  	Sat, 28 May 2022 13:06:58 GMT - commit 03088cc0ee948dcc51f26edde067cc2b2736a679
  
  	https://github.com/rollup/rollup
  
  	Released under the MIT License.
  */
  'use strict';
  
  const rollup = require('./rollup.js');
  const require$$0$1 = require('fs');
  const require$$2 = require('util');
  const require$$1 = require('stream');
  const require$$0$2 = require('path');
  const require$$2$1 = require('os');
  const require$$0$3 = require('events');
  
  var chokidar = {};
  
  const fs$3 = require$$0$1;
  const { Readable } = require$$1;
  const sysPath$3 = require$$0$2;
  const { promisify: promisify$3 } = require$$2;
  const picomatch$1 = rollup.picomatch.exports;
  
  const readdir$1 = promisify$3(fs$3.readdir);
  const stat$3 = promisify$3(fs$3.stat);
  const lstat$2 = promisify$3(fs$3.lstat);
  const realpath$1 = promisify$3(fs$3.realpath);
  
  /**
   * @typedef {Object} EntryInfo
   * @property {String} path
   * @property {String} fullPath
   * @property {fs.Stats=} stats
   * @property {fs.Dirent=} dirent
   * @property {String} basename
   */
  
  const BANG$2 = '!';
  const RECURSIVE_ERROR_CODE = 'READDIRP_RECURSIVE_ERROR';
  const NORMAL_FLOW_ERRORS = new Set(['ENOENT', 'EPERM', 'EACCES', 'ELOOP', RECURSIVE_ERROR_CODE]);
  const FILE_TYPE = 'files';
  const DIR_TYPE = 'directories';
  const FILE_DIR_TYPE = 'files_directories';
  const EVERYTHING_TYPE = 'all';
  const ALL_TYPES = [FILE_TYPE, DIR_TYPE, FILE_DIR_TYPE, EVERYTHING_TYPE];
  
  const isNormalFlowError = error => NORMAL_FLOW_ERRORS.has(error.code);
  const [maj, min] = process.versions.node.split('.').slice(0, 2).map(n => Number.parseInt(n, 10));
  const wantBigintFsStats = process.platform === 'win32' && (maj > 10 || (maj === 10 && min >= 5));
  
  const normalizeFilter = filter => {
    if (filter === undefined) return;
    if (typeof filter === 'function') return filter;
  
    if (typeof filter === 'string') {
      const glob = picomatch$1(filter.trim());
      return entry => glob(entry.basename);
    }
  
    if (Array.isArray(filter)) {
      const positive = [];
      const negative = [];
      for (const item of filter) {
        const trimmed = item.trim();
        if (trimmed.charAt(0) === BANG$2) {
          negative.push(picomatch$1(trimmed.slice(1)));
        } else {
          positive.push(picomatch$1(trimmed));
        }
      }
  
      if (negative.length > 0) {
        if (positive.length > 0) {
          return entry =>
            positive.some(f => f(entry.basename)) && !negative.some(f => f(entry.basename));
        }
        return entry => !negative.some(f => f(entry.basename));
      }
      return entry => positive.some(f => f(entry.basename));
    }
  };
  
  class ReaddirpStream extends Readable {
    static get defaultOptions() {
      return {
        root: '.',
        /* eslint-disable no-unused-vars */
        fileFilter: (path) => true,
        directoryFilter: (path) => true,
        /* eslint-enable no-unused-vars */
        type: FILE_TYPE,
        lstat: false,
        depth: 2147483648,
        alwaysStat: false
      };
    }
  
    constructor(options = {}) {
      super({
        objectMode: true,
        autoDestroy: true,
        highWaterMark: options.highWaterMark || 4096
      });
      const opts = { ...ReaddirpStream.defaultOptions, ...options };
      const { root, type } = opts;
  
      this._fileFilter = normalizeFilter(opts.fileFilter);
      this._directoryFilter = normalizeFilter(opts.directoryFilter);
  
      const statMethod = opts.lstat ? lstat$2 : stat$3;
      // Use bigint stats if it's windows and stat() supports options (node 10+).
      if (wantBigintFsStats) {
        this._stat = path => statMethod(path, { bigint: true });
      } else {
        this._stat = statMethod;
      }
  
      this._maxDepth = opts.depth;
      this._wantsDir = [DIR_TYPE, FILE_DIR_TYPE, EVERYTHING_TYPE].includes(type);
      this._wantsFile = [FILE_TYPE, FILE_DIR_TYPE, EVERYTHING_TYPE].includes(type);
      this._wantsEverything = type === EVERYTHING_TYPE;
      this._root = sysPath$3.resolve(root);
      this._isDirent = ('Dirent' in fs$3) && !opts.alwaysStat;
      this._statsProp = this._isDirent ? 'dirent' : 'stats';
      this._rdOptions = { encoding: 'utf8', withFileTypes: this._isDirent };
  
      // Launch stream with one parent, the root dir.
      this.parents = [this._exploreDir(root, 1)];
      this.reading = false;
      this.parent = undefined;
    }
  
    async _read(batch) {
      if (this.reading) return;
      this.reading = true;
  
      try {
        while (!this.destroyed && batch > 0) {
          const { path, depth, files = [] } = this.parent || {};
  
          if (files.length > 0) {
            const slice = files.splice(0, batch).map(dirent => this._formatEntry(dirent, path));
            for (const entry of await Promise.all(slice)) {
              if (this.destroyed) return;
  
              const entryType = await this._getEntryType(entry);
              if (entryType === 'directory' && this._directoryFilter(entry)) {
                if (depth <= this._maxDepth) {
                  this.parents.push(this._exploreDir(entry.fullPath, depth + 1));
                }
  
                if (this._wantsDir) {
                  this.push(entry);
                  batch--;
                }
              } else if ((entryType === 'file' || this._includeAsFile(entry)) && this._fileFilter(entry)) {
                if (this._wantsFile) {
                  this.push(entry);
                  batch--;
                }
              }
            }
          } else {
            const parent = this.parents.pop();
            if (!parent) {
              this.push(null);
              break;
            }
            this.parent = await parent;
            if (this.destroyed) return;
          }
        }
      } catch (error) {
        this.destroy(error);
      } finally {
        this.reading = false;
      }
    }
  
    async _exploreDir(path, depth) {
      let files;
      try {
        files = await readdir$1(path, this._rdOptions);
      } catch (error) {
        this._onError(error);
      }
      return { files, depth, path };
    }
  
    async _formatEntry(dirent, path) {
      let entry;
      try {
        const basename = this._isDirent ? dirent.name : dirent;
        const fullPath = sysPath$3.resolve(sysPath$3.join(path, basename));
        entry = { path: sysPath$3.relative(this._root, fullPath), fullPath, basename };
        entry[this._statsProp] = this._isDirent ? dirent : await this._stat(fullPath);
      } catch (err) {
        this._onError(err);
      }
      return entry;
    }
  
    _onError(err) {
      if (isNormalFlowError(err) && !this.destroyed) {
        this.emit('warn', err);
      } else {
        this.destroy(err);
      }
    }
  
    async _getEntryType(entry) {
      // entry may be undefined, because a warning or an error were emitted
      // and the statsProp is undefined
      const stats = entry && entry[this._statsProp];
      if (!stats) {
        return;
      }
      if (stats.isFile()) {
        return 'file';
      }
      if (stats.isDirectory()) {
        return 'directory';
      }
      if (stats && stats.isSymbolicLink()) {
        const full = entry.fullPath;
        try {
          const entryRealPath = await realpath$1(full);
          const entryRealPathStats = await lstat$2(entryRealPath);
          if (entryRealPathStats.isFile()) {
            return 'file';
          }
          if (entryRealPathStats.isDirectory()) {
            const len = entryRealPath.length;
            if (full.startsWith(entryRealPath) && full.substr(len, 1) === sysPath$3.sep) {
              const recursiveError = new Error(
                `Circular symlink detected: "${full}" points to "${entryRealPath}"`
              );
              recursiveError.code = RECURSIVE_ERROR_CODE;
              return this._onError(recursiveError);
            }
            return 'directory';
          }
        } catch (error) {
          this._onError(error);
        }
      }
    }
  
    _includeAsFile(entry) {
      const stats = entry && entry[this._statsProp];
  
      return stats && this._wantsEverything && !stats.isDirectory();
    }
  }
  
  /**
   * @typedef {Object} ReaddirpArguments
   * @property {Function=} fileFilter
   * @property {Function=} directoryFilter
   * @property {String=} type
   * @property {Number=} depth
   * @property {String=} root
   * @property {Boolean=} lstat
   * @property {Boolean=} bigint
   */
  
  /**
   * Main function which ends up calling readdirRec and reads all files and directories in given root recursively.
   * @param {String} root Root directory
   * @param {ReaddirpArguments=} options Options to specify root (start directory), filters and recursion depth
   */
  const readdirp$1 = (root, options = {}) => {
    let type = options.entryType || options.type;
    if (type === 'both') type = FILE_DIR_TYPE; // backwards-compatibility
    if (type) options.type = type;
    if (!root) {
      throw new Error('readdirp: root argument is required. Usage: readdirp(root, options)');
    } else if (typeof root !== 'string') {
      throw new TypeError('readdirp: root argument must be a string. Usage: readdirp(root, options)');
    } else if (type && !ALL_TYPES.includes(type)) {
      throw new Error(`readdirp: Invalid type passed. Use one of ${ALL_TYPES.join(', ')}`);
    }
  
    options.root = root;
    return new ReaddirpStream(options);
  };
  
  const readdirpPromise = (root, options = {}) => {
    return new Promise((resolve, reject) => {
      const files = [];
      readdirp$1(root, options)
        .on('data', entry => files.push(entry))
        .on('end', () => resolve(files))
        .on('error', error => reject(error));
    });
  };
  
  readdirp$1.promise = readdirpPromise;
  readdirp$1.ReaddirpStream = ReaddirpStream;
  readdirp$1.default = readdirp$1;
  
  var readdirp_1 = readdirp$1;
  
  var anymatch$2 = {exports: {}};
  
  /*!
   * normalize-path <https://github.com/jonschlinkert/normalize-path>
   *
   * Copyright (c) 2014-2018, Jon Schlinkert.
   * Released under the MIT License.
   */
  
  var normalizePath$2 = function(path, stripTrailing) {
    if (typeof path !== 'string') {
      throw new TypeError('expected path to be a string');
    }
  
    if (path === '\\' || path === '/') return '/';
  
    var len = path.length;
    if (len <= 1) return path;
  
    // ensure that win32 namespaces has two leading slashes, so that the path is
    // handled properly by the win32 version of path.parse() after being normalized
    // https://msdn.microsoft.com/library/windows/desktop/aa365247(v=vs.85).aspx#namespaces
    var prefix = '';
    if (len > 4 && path[3] === '\\') {
      var ch = path[2];
      if ((ch === '?' || ch === '.') && path.slice(0, 2) === '\\\\') {
        path = path.slice(2);
        prefix = '//';
      }
    }
  
    var segs = path.split(/[/\\]+/);
    if (stripTrailing !== false && segs[segs.length - 1] === '') {
      segs.pop();
    }
    return prefix + segs.join('/');
  };
  
  Object.defineProperty(anymatch$2.exports, "__esModule", { value: true });
  
  const picomatch = rollup.picomatch.exports;
  const normalizePath$1 = normalizePath$2;
  
  /**
   * @typedef {(testString: string) => boolean} AnymatchFn
   * @typedef {string|RegExp|AnymatchFn} AnymatchPattern
   * @typedef {AnymatchPattern|AnymatchPattern[]} AnymatchMatcher
   */
  const BANG$1 = '!';
  const DEFAULT_OPTIONS = {returnIndex: false};
  const arrify$1 = (item) => Array.isArray(item) ? item : [item];
  
  /**
   * @param {AnymatchPattern} matcher
   * @param {object} options
   * @returns {AnymatchFn}
   */
  const createPattern = (matcher, options) => {
    if (typeof matcher === 'function') {
      return matcher;
    }
    if (typeof matcher === 'string') {
      const glob = picomatch(matcher, options);
      return (string) => matcher === string || glob(string);
    }
    if (matcher instanceof RegExp) {
      return (string) => matcher.test(string);
    }
    return (string) => false;
  };
  
  /**
   * @param {Array<Function>} patterns
   * @param {Array<Function>} negPatterns
   * @param {String|Array} args
   * @param {Boolean} returnIndex
   * @returns {boolean|number}
   */
  const matchPatterns = (patterns, negPatterns, args, returnIndex) => {
    const isList = Array.isArray(args);
    const _path = isList ? args[0] : args;
    if (!isList && typeof _path !== 'string') {
      throw new TypeError('anymatch: second argument must be a string: got ' +
        Object.prototype.toString.call(_path))
    }
    const path = normalizePath$1(_path);
  
    for (let index = 0; index < negPatterns.length; index++) {
      const nglob = negPatterns[index];
      if (nglob(path)) {
        return returnIndex ? -1 : false;
      }
    }
  
    const applied = isList && [path].concat(args.slice(1));
    for (let index = 0; index < patterns.length; index++) {
      const pattern = patterns[index];
      if (isList ? pattern(...applied) : pattern(path)) {
        return returnIndex ? index : true;
      }
    }
  
    return returnIndex ? -1 : false;
  };
  
  /**
   * @param {AnymatchMatcher} matchers
   * @param {Array|string} testString
   * @param {object} options
   * @returns {boolean|number|Function}
   */
  const anymatch$1 = (matchers, testString, options = DEFAULT_OPTIONS) => {
    if (matchers == null) {
      throw new TypeError('anymatch: specify first argument');
    }
    const opts = typeof options === 'boolean' ? {returnIndex: options} : options;
    const returnIndex = opts.returnIndex || false;
  
    // Early cache for matchers.
    const mtchers = arrify$1(matchers);
    const negatedGlobs = mtchers
      .filter(item => typeof item === 'string' && item.charAt(0) === BANG$1)
      .map(item => item.slice(1))
      .map(item => picomatch(item, opts));
    const patterns = mtchers
      .filter(item => typeof item !== 'string' || (typeof item === 'string' && item.charAt(0) !== BANG$1))
      .map(matcher => createPattern(matcher, opts));
  
    if (testString == null) {
      return (testString, ri = false) => {
        const returnIndex = typeof ri === 'boolean' ? ri : false;
        return matchPatterns(patterns, negatedGlobs, testString, returnIndex);
      }
    }
  
    return matchPatterns(patterns, negatedGlobs, testString, returnIndex);
  };
  
  anymatch$1.default = anymatch$1;
  anymatch$2.exports = anymatch$1;
  
  /*!
   * is-extglob <https://github.com/jonschlinkert/is-extglob>
   *
   * Copyright (c) 2014-2016, Jon Schlinkert.
   * Licensed under the MIT License.
   */
  
  var isExtglob$1 = function isExtglob(str) {
    if (typeof str !== 'string' || str === '') {
      return false;
    }
  
    var match;
    while ((match = /(\\).|([@?!+*]\(.*\))/g.exec(str))) {
      if (match[2]) return true;
      str = str.slice(match.index + match[0].length);
    }
  
    return false;
  };
  
  /*!
   * is-glob <https://github.com/jonschlinkert/is-glob>
   *
   * Copyright (c) 2014-2017, Jon Schlinkert.
   * Released under the MIT License.
   */
  
  var isExtglob = isExtglob$1;
  var chars = { '{': '}', '(': ')', '[': ']'};
  var strictCheck = function(str) {
    if (str[0] === '!') {
      return true;
    }
    var index = 0;
    var pipeIndex = -2;
    var closeSquareIndex = -2;
    var closeCurlyIndex = -2;
    var closeParenIndex = -2;
    var backSlashIndex = -2;
    while (index < str.length) {
      if (str[index] === '*') {
        return true;
      }
  
      if (str[index + 1] === '?' && /[\].+)]/.test(str[index])) {
        return true;
      }
  
      if (closeSquareIndex !== -1 && str[index] === '[' && str[index + 1] !== ']') {
        if (closeSquareIndex < index) {
          closeSquareIndex = str.indexOf(']', index);
        }
        if (closeSquareIndex > index) {
          if (backSlashIndex === -1 || backSlashIndex > closeSquareIndex) {
            return true;
          }
          backSlashIndex = str.indexOf('\\', index);
          if (backSlashIndex === -1 || backSlashIndex > closeSquareIndex) {
            return true;
          }
        }
      }
  
      if (closeCurlyIndex !== -1 && str[index] === '{' && str[index + 1] !== '}') {
        closeCurlyIndex = str.indexOf('}', index);
        if (closeCurlyIndex > index) {
          backSlashIndex = str.indexOf('\\', index);
          if (backSlashIndex === -1 || backSlashIndex > closeCurlyIndex) {
            return true;
          }
        }
      }
  
      if (closeParenIndex !== -1 && str[index] === '(' && str[index + 1] === '?' && /[:!=]/.test(str[index + 2]) && str[index + 3] !== ')') {
        closeParenIndex = str.indexOf(')', index);
        if (closeParenIndex > index) {
          backSlashIndex = str.indexOf('\\', index);
          if (backSlashIndex === -1 || backSlashIndex > closeParenIndex) {
            return true;
          }
        }
      }
  
      if (pipeIndex !== -1 && str[index] === '(' && str[index + 1] !== '|') {
        if (pipeIndex < index) {
          pipeIndex = str.indexOf('|', index);
        }
        if (pipeIndex !== -1 && str[pipeIndex + 1] !== ')') {
          closeParenIndex = str.indexOf(')', pipeIndex);
          if (closeParenIndex > pipeIndex) {
            backSlashIndex = str.indexOf('\\', pipeIndex);
            if (backSlashIndex === -1 || backSlashIndex > closeParenIndex) {
              return true;
            }
          }
        }
      }
  
      if (str[index] === '\\') {
        var open = str[index + 1];
        index += 2;
        var close = chars[open];
  
        if (close) {
          var n = str.indexOf(close, index);
          if (n !== -1) {
            index = n + 1;
          }
        }
  
        if (str[index] === '!') {
          return true;
        }
      } else {
        index++;
      }
    }
    return false;
  };
  
  var relaxedCheck = function(str) {
    if (str[0] === '!') {
      return true;
    }
    var index = 0;
    while (index < str.length) {
      if (/[*?{}()[\]]/.test(str[index])) {
        return true;
      }
  
      if (str[index] === '\\') {
        var open = str[index + 1];
        index += 2;
        var close = chars[open];
  
        if (close) {
          var n = str.indexOf(close, index);
          if (n !== -1) {
            index = n + 1;
          }
        }
  
        if (str[index] === '!') {
          return true;
        }
      } else {
        index++;
      }
    }
    return false;
  };
  
  var isGlob$2 = function isGlob(str, options) {
    if (typeof str !== 'string' || str === '') {
      return false;
    }
  
    if (isExtglob(str)) {
      return true;
    }
  
    var check = strictCheck;
  
    // optionally relax check
    if (options && options.strict === false) {
      check = relaxedCheck;
    }
  
    return check(str);
  };
  
  var isGlob$1 = isGlob$2;
  var pathPosixDirname = require$$0$2.posix.dirname;
  var isWin32 = require$$2$1.platform() === 'win32';
  
  var slash = '/';
  var backslash = /\\/g;
  var enclosure = /[\{\[].*[\}\]]$/;
  var globby = /(^|[^\\])([\{\[]|\([^\)]+$)/;
  var escaped = /\\([\!\*\?\|\[\]\(\)\{\}])/g;
  
  /**
   * @param {string} str
   * @param {Object} opts
   * @param {boolean} [opts.flipBackslashes=true]
   * @returns {string}
   */
  var globParent$1 = function globParent(str, opts) {
    var options = Object.assign({ flipBackslashes: true }, opts);
  
    // flip windows path separators
    if (options.flipBackslashes && isWin32 && str.indexOf(slash) < 0) {
      str = str.replace(backslash, slash);
    }
  
    // special case for strings ending in enclosure containing path separator
    if (enclosure.test(str)) {
      str += slash;
    }
  
    // preserves full path in case of trailing path separator
    str += 'a';
  
    // remove path parts that are globby
    do {
      str = pathPosixDirname(str);
    } while (isGlob$1(str) || globby.test(str));
  
    // remove escape chars and return result
    return str.replace(escaped, '$1');
  };
  
  var utils$3 = {};
  
  (function (exports) {
  
  	exports.isInteger = num => {
  	  if (typeof num === 'number') {
  	    return Number.isInteger(num);
  	  }
  	  if (typeof num === 'string' && num.trim() !== '') {
  	    return Number.isInteger(Number(num));
  	  }
  	  return false;
  	};
  
  	/**
  	 * Find a node of the given type
  	 */
  
  	exports.find = (node, type) => node.nodes.find(node => node.type === type);
  
  	/**
  	 * Find a node of the given type
  	 */
  
  	exports.exceedsLimit = (min, max, step = 1, limit) => {
  	  if (limit === false) return false;
  	  if (!exports.isInteger(min) || !exports.isInteger(max)) return false;
  	  return ((Number(max) - Number(min)) / Number(step)) >= limit;
  	};
  
  	/**
  	 * Escape the given node with '\\' before node.value
  	 */
  
  	exports.escapeNode = (block, n = 0, type) => {
  	  let node = block.nodes[n];
  	  if (!node) return;
  
  	  if ((type && node.type === type) || node.type === 'open' || node.type === 'close') {
  	    if (node.escaped !== true) {
  	      node.value = '\\' + node.value;
  	      node.escaped = true;
  	    }
  	  }
  	};
  
  	/**
  	 * Returns true if the given brace node should be enclosed in literal braces
  	 */
  
  	exports.encloseBrace = node => {
  	  if (node.type !== 'brace') return false;
  	  if ((node.commas >> 0 + node.ranges >> 0) === 0) {
  	    node.invalid = true;
  	    return true;
  	  }
  	  return false;
  	};
  
  	/**
  	 * Returns true if a brace node is invalid.
  	 */
  
  	exports.isInvalidBrace = block => {
  	  if (block.type !== 'brace') return false;
  	  if (block.invalid === true || block.dollar) return true;
  	  if ((block.commas >> 0 + block.ranges >> 0) === 0) {
  	    block.invalid = true;
  	    return true;
  	  }
  	  if (block.open !== true || block.close !== true) {
  	    block.invalid = true;
  	    return true;
  	  }
  	  return false;
  	};
  
  	/**
  	 * Returns true if a node is an open or close node
  	 */
  
  	exports.isOpenOrClose = node => {
  	  if (node.type === 'open' || node.type === 'close') {
  	    return true;
  	  }
  	  return node.open === true || node.close === true;
  	};
  
  	/**
  	 * Reduce an array of text nodes.
  	 */
  
  	exports.reduce = nodes => nodes.reduce((acc, node) => {
  	  if (node.type === 'text') acc.push(node.value);
  	  if (node.type === 'range') node.type = 'text';
  	  return acc;
  	}, []);
  
  	/**
  	 * Flatten an array
  	 */
  
  	exports.flatten = (...args) => {
  	  const result = [];
  	  const flat = arr => {
  	    for (let i = 0; i < arr.length; i++) {
  	      let ele = arr[i];
  	      Array.isArray(ele) ? flat(ele) : ele !== void 0 && result.push(ele);
  	    }
  	    return result;
  	  };
  	  flat(args);
  	  return result;
  	};
  } (utils$3));
  
  const utils$2 = utils$3;
  
  var stringify$4 = (ast, options = {}) => {
    let stringify = (node, parent = {}) => {
      let invalidBlock = options.escapeInvalid && utils$2.isInvalidBrace(parent);
      let invalidNode = node.invalid === true && options.escapeInvalid === true;
      let output = '';
  
      if (node.value) {
        if ((invalidBlock || invalidNode) && utils$2.isOpenOrClose(node)) {
          return '\\' + node.value;
        }
        return node.value;
      }
  
      if (node.value) {
        return node.value;
      }
  
      if (node.nodes) {
        for (let child of node.nodes) {
          output += stringify(child);
        }
      }
      return output;
    };
  
    return stringify(ast);
  };
  
  /*!
   * is-number <https://github.com/jonschlinkert/is-number>
   *
   * Copyright (c) 2014-present, Jon Schlinkert.
   * Released under the MIT License.
   */
  
  var isNumber$2 = function(num) {
    if (typeof num === 'number') {
      return num - num === 0;
    }
    if (typeof num === 'string' && num.trim() !== '') {
      return Number.isFinite ? Number.isFinite(+num) : isFinite(+num);
    }
    return false;
  };
  
  /*!
   * to-regex-range <https://github.com/micromatch/to-regex-range>
   *
   * Copyright (c) 2015-present, Jon Schlinkert.
   * Released under the MIT License.
   */
  
  const isNumber$1 = isNumber$2;
  
  const toRegexRange$1 = (min, max, options) => {
    if (isNumber$1(min) === false) {
      throw new TypeError('toRegexRange: expected the first argument to be a number');
    }
  
    if (max === void 0 || min === max) {
      return String(min);
    }
  
    if (isNumber$1(max) === false) {
      throw new TypeError('toRegexRange: expected the second argument to be a number.');
    }
  
    let opts = { relaxZeros: true, ...options };
    if (typeof opts.strictZeros === 'boolean') {
      opts.relaxZeros = opts.strictZeros === false;
    }
  
    let relax = String(opts.relaxZeros);
    let shorthand = String(opts.shorthand);
    let capture = String(opts.capture);
    let wrap = String(opts.wrap);
    let cacheKey = min + ':' + max + '=' + relax + shorthand + capture + wrap;
  
    if (toRegexRange$1.cache.hasOwnProperty(cacheKey)) {
      return toRegexRange$1.cache[cacheKey].result;
    }
  
    let a = Math.min(min, max);
    let b = Math.max(min, max);
  
    if (Math.abs(a - b) === 1) {
      let result = min + '|' + max;
      if (opts.capture) {
        return `(${result})`;
      }
      if (opts.wrap === false) {
        return result;
      }
      return `(?:${result})`;
    }
  
    let isPadded = hasPadding(min) || hasPadding(max);
    let state = { min, max, a, b };
    let positives = [];
    let negatives = [];
  
    if (isPadded) {
      state.isPadded = isPadded;
      state.maxLen = String(state.max).length;
    }
  
    if (a < 0) {
      let newMin = b < 0 ? Math.abs(b) : 1;
      negatives = splitToPatterns(newMin, Math.abs(a), state, opts);
      a = state.a = 0;
    }
  
    if (b >= 0) {
      positives = splitToPatterns(a, b, state, opts);
    }
  
    state.negatives = negatives;
    state.positives = positives;
    state.result = collatePatterns(negatives, positives);
  
    if (opts.capture === true) {
      state.result = `(${state.result})`;
    } else if (opts.wrap !== false && (positives.length + negatives.length) > 1) {
      state.result = `(?:${state.result})`;
    }
  
    toRegexRange$1.cache[cacheKey] = state;
    return state.result;
  };
  
  function collatePatterns(neg, pos, options) {
    let onlyNegative = filterPatterns(neg, pos, '-', false) || [];
    let onlyPositive = filterPatterns(pos, neg, '', false) || [];
    let intersected = filterPatterns(neg, pos, '-?', true) || [];
    let subpatterns = onlyNegative.concat(intersected).concat(onlyPositive);
    return subpatterns.join('|');
  }
  
  function splitToRanges(min, max) {
    let nines = 1;
    let zeros = 1;
  
    let stop = countNines(min, nines);
    let stops = new Set([max]);
  
    while (min <= stop && stop <= max) {
      stops.add(stop);
      nines += 1;
      stop = countNines(min, nines);
    }
  
    stop = countZeros(max + 1, zeros) - 1;
  
    while (min < stop && stop <= max) {
      stops.add(stop);
      zeros += 1;
      stop = countZeros(max + 1, zeros) - 1;
    }
  
    stops = [...stops];
    stops.sort(compare);
    return stops;
  }
  
  /**
   * Convert a range to a regex pattern
   * @param {Number} `start`
   * @param {Number} `stop`
   * @return {String}
   */
  
  function rangeToPattern(start, stop, options) {
    if (start === stop) {
      return { pattern: start, count: [], digits: 0 };
    }
  
    let zipped = zip(start, stop);
    let digits = zipped.length;
    let pattern = '';
    let count = 0;
  
    for (let i = 0; i < digits; i++) {
      let [startDigit, stopDigit] = zipped[i];
  
      if (startDigit === stopDigit) {
        pattern += startDigit;
  
      } else if (startDigit !== '0' || stopDigit !== '9') {
        pattern += toCharacterClass(startDigit, stopDigit);
  
      } else {
        count++;
      }
    }
  
    if (count) {
      pattern += options.shorthand === true ? '\\d' : '[0-9]';
    }
  
    return { pattern, count: [count], digits };
  }
  
  function splitToPatterns(min, max, tok, options) {
    let ranges = splitToRanges(min, max);
    let tokens = [];
    let start = min;
    let prev;
  
    for (let i = 0; i < ranges.length; i++) {
      let max = ranges[i];
      let obj = rangeToPattern(String(start), String(max), options);
      let zeros = '';
  
      if (!tok.isPadded && prev && prev.pattern === obj.pattern) {
        if (prev.count.length > 1) {
          prev.count.pop();
        }
  
        prev.count.push(obj.count[0]);
        prev.string = prev.pattern + toQuantifier(prev.count);
        start = max + 1;
        continue;
      }
  
      if (tok.isPadded) {
        zeros = padZeros(max, tok, options);
      }
  
      obj.string = zeros + obj.pattern + toQuantifier(obj.count);
      tokens.push(obj);
      start = max + 1;
      prev = obj;
    }
  
    return tokens;
  }
  
  function filterPatterns(arr, comparison, prefix, intersection, options) {
    let result = [];
  
    for (let ele of arr) {
      let { string } = ele;
  
      // only push if _both_ are negative...
      if (!intersection && !contains(comparison, 'string', string)) {
        result.push(prefix + string);
      }
  
      // or _both_ are positive
      if (intersection && contains(comparison, 'string', string)) {
        result.push(prefix + string);
      }
    }
    return result;
  }
  
  /**
   * Zip strings
   */
  
  function zip(a, b) {
    let arr = [];
    for (let i = 0; i < a.length; i++) arr.push([a[i], b[i]]);
    return arr;
  }
  
  function compare(a, b) {
    return a > b ? 1 : b > a ? -1 : 0;
  }
  
  function contains(arr, key, val) {
    return arr.some(ele => ele[key] === val);
  }
  
  function countNines(min, len) {
    return Number(String(min).slice(0, -len) + '9'.repeat(len));
  }
  
  function countZeros(integer, zeros) {
    return integer - (integer % Math.pow(10, zeros));
  }
  
  function toQuantifier(digits) {
    let [start = 0, stop = ''] = digits;
    if (stop || start > 1) {
      return `{${start + (stop ? ',' + stop : '')}}`;
    }
    return '';
  }
  
  function toCharacterClass(a, b, options) {
    return `[${a}${(b - a === 1) ? '' : '-'}${b}]`;
  }
  
  function hasPadding(str) {
    return /^-?(0+)\d/.test(str);
  }
  
  function padZeros(value, tok, options) {
    if (!tok.isPadded) {
      return value;
    }
  
    let diff = Math.abs(tok.maxLen - String(value).length);
    let relax = options.relaxZeros !== false;
  
    switch (diff) {
      case 0:
        return '';
      case 1:
        return relax ? '0?' : '0';
      case 2:
        return relax ? '0{0,2}' : '00';
      default: {
        return relax ? `0{0,${diff}}` : `0{${diff}}`;
      }
    }
  }
  
  /**
   * Cache
   */
  
  toRegexRange$1.cache = {};
  toRegexRange$1.clearCache = () => (toRegexRange$1.cache = {});
  
  /**
   * Expose `toRegexRange`
   */
  
  var toRegexRange_1 = toRegexRange$1;
  
  /*!
   * fill-range <https://github.com/jonschlinkert/fill-range>
   *
   * Copyright (c) 2014-present, Jon Schlinkert.
   * Licensed under the MIT License.
   */
  
  const util = require$$2;
  const toRegexRange = toRegexRange_1;
  
  const isObject = val => val !== null && typeof val === 'object' && !Array.isArray(val);
  
  const transform = toNumber => {
    return value => toNumber === true ? Number(value) : String(value);
  };
  
  const isValidValue = value => {
    return typeof value === 'number' || (typeof value === 'string' && value !== '');
  };
  
  const isNumber = num => Number.isInteger(+num);
  
  const zeros = input => {
    let value = `${input}`;
    let index = -1;
    if (value[0] === '-') value = value.slice(1);
    if (value === '0') return false;
    while (value[++index] === '0');
    return index > 0;
  };
  
  const stringify$3 = (start, end, options) => {
    if (typeof start === 'string' || typeof end === 'string') {
      return true;
    }
    return options.stringify === true;
  };
  
  const pad = (input, maxLength, toNumber) => {
    if (maxLength > 0) {
      let dash = input[0] === '-' ? '-' : '';
      if (dash) input = input.slice(1);
      input = (dash + input.padStart(dash ? maxLength - 1 : maxLength, '0'));
    }
    if (toNumber === false) {
      return String(input);
    }
    return input;
  };
  
  const toMaxLen = (input, maxLength) => {
    let negative = input[0] === '-' ? '-' : '';
    if (negative) {
      input = input.slice(1);
      maxLength--;
    }
    while (input.length < maxLength) input = '0' + input;
    return negative ? ('-' + input) : input;
  };
  
  const toSequence = (parts, options) => {
    parts.negatives.sort((a, b) => a < b ? -1 : a > b ? 1 : 0);
    parts.positives.sort((a, b) => a < b ? -1 : a > b ? 1 : 0);
  
    let prefix = options.capture ? '' : '?:';
    let positives = '';
    let negatives = '';
    let result;
  
    if (parts.positives.length) {
      positives = parts.positives.join('|');
    }
  
    if (parts.negatives.length) {
      negatives = `-(${prefix}${parts.negatives.join('|')})`;
    }
  
    if (positives && negatives) {
      result = `${positives}|${negatives}`;
    } else {
      result = positives || negatives;
    }
  
    if (options.wrap) {
      return `(${prefix}${result})`;
    }
  
    return result;
  };
  
  const toRange = (a, b, isNumbers, options) => {
    if (isNumbers) {
      return toRegexRange(a, b, { wrap: false, ...options });
    }
  
    let start = String.fromCharCode(a);
    if (a === b) return start;
  
    let stop = String.fromCharCode(b);
    return `[${start}-${stop}]`;
  };
  
  const toRegex = (start, end, options) => {
    if (Array.isArray(start)) {
      let wrap = options.wrap === true;
      let prefix = options.capture ? '' : '?:';
      return wrap ? `(${prefix}${start.join('|')})` : start.join('|');
    }
    return toRegexRange(start, end, options);
  };
  
  const rangeError = (...args) => {
    return new RangeError('Invalid range arguments: ' + util.inspect(...args));
  };
  
  const invalidRange = (start, end, options) => {
    if (options.strictRanges === true) throw rangeError([start, end]);
    return [];
  };
  
  const invalidStep = (step, options) => {
    if (options.strictRanges === true) {
      throw new TypeError(`Expected step "${step}" to be a number`);
    }
    return [];
  };
  
  const fillNumbers = (start, end, step = 1, options) => {
    let a = Number(start);
    let b = Number(end);
  
    if (!Number.isInteger(a) || !Number.isInteger(b)) {
      if (options.strictRanges === true) throw rangeError([start, end]);
      return [];
    }
  
    // fix negative zero
    if (a === 0) a = 0;
    if (b === 0) b = 0;
  
    let descending = a > b;
    let startString = String(start);
    let endString = String(end);
    let stepString = String(step);
    step = Math.max(Math.abs(step), 1);
  
    let padded = zeros(startString) || zeros(endString) || zeros(stepString);
    let maxLen = padded ? Math.max(startString.length, endString.length, stepString.length) : 0;
    let toNumber = padded === false && stringify$3(start, end, options) === false;
    let format = options.transform || transform(toNumber);
  
    if (options.toRegex && step === 1) {
      return toRange(toMaxLen(start, maxLen), toMaxLen(end, maxLen), true, options);
    }
  
    let parts = { negatives: [], positives: [] };
    let push = num => parts[num < 0 ? 'negatives' : 'positives'].push(Math.abs(num));
    let range = [];
    let index = 0;
  
    while (descending ? a >= b : a <= b) {
      if (options.toRegex === true && step > 1) {
        push(a);
      } else {
        range.push(pad(format(a, index), maxLen, toNumber));
      }
      a = descending ? a - step : a + step;
      index++;
    }
  
    if (options.toRegex === true) {
      return step > 1
        ? toSequence(parts, options)
        : toRegex(range, null, { wrap: false, ...options });
    }
  
    return range;
  };
  
  const fillLetters = (start, end, step = 1, options) => {
    if ((!isNumber(start) && start.length > 1) || (!isNumber(end) && end.length > 1)) {
      return invalidRange(start, end, options);
    }
  
  
    let format = options.transform || (val => String.fromCharCode(val));
    let a = `${start}`.charCodeAt(0);
    let b = `${end}`.charCodeAt(0);
  
    let descending = a > b;
    let min = Math.min(a, b);
    let max = Math.max(a, b);
  
    if (options.toRegex && step === 1) {
      return toRange(min, max, false, options);
    }
  
    let range = [];
    let index = 0;
  
    while (descending ? a >= b : a <= b) {
      range.push(format(a, index));
      a = descending ? a - step : a + step;
      index++;
    }
  
    if (options.toRegex === true) {
      return toRegex(range, null, { wrap: false, options });
    }
  
    return range;
  };
  
  const fill$2 = (start, end, step, options = {}) => {
    if (end == null && isValidValue(start)) {
      return [start];
    }
  
    if (!isValidValue(start) || !isValidValue(end)) {
      return invalidRange(start, end, options);
    }
  
    if (typeof step === 'function') {
      return fill$2(start, end, 1, { transform: step });
    }
  
    if (isObject(step)) {
      return fill$2(start, end, 0, step);
    }
  
    let opts = { ...options };
    if (opts.capture === true) opts.wrap = true;
    step = step || opts.step || 1;
  
    if (!isNumber(step)) {
      if (step != null && !isObject(step)) return invalidStep(step, opts);
      return fill$2(start, end, 1, step);
    }
  
    if (isNumber(start) && isNumber(end)) {
      return fillNumbers(start, end, step, opts);
    }
  
    return fillLetters(start, end, Math.max(Math.abs(step), 1), opts);
  };
  
  var fillRange = fill$2;
  
  const fill$1 = fillRange;
  const utils$1 = utils$3;
  
  const compile$1 = (ast, options = {}) => {
    let walk = (node, parent = {}) => {
      let invalidBlock = utils$1.isInvalidBrace(parent);
      let invalidNode = node.invalid === true && options.escapeInvalid === true;
      let invalid = invalidBlock === true || invalidNode === true;
      let prefix = options.escapeInvalid === true ? '\\' : '';
      let output = '';
  
      if (node.isOpen === true) {
        return prefix + node.value;
      }
      if (node.isClose === true) {
        return prefix + node.value;
      }
  
      if (node.type === 'open') {
        return invalid ? (prefix + node.value) : '(';
      }
  
      if (node.type === 'close') {
        return invalid ? (prefix + node.value) : ')';
      }
  
      if (node.type === 'comma') {
        return node.prev.type === 'comma' ? '' : (invalid ? node.value : '|');
      }
  
      if (node.value) {
        return node.value;
      }
  
      if (node.nodes && node.ranges > 0) {
        let args = utils$1.reduce(node.nodes);
        let range = fill$1(...args, { ...options, wrap: false, toRegex: true });
  
        if (range.length !== 0) {
          return args.length > 1 && range.length > 1 ? `(${range})` : range;
        }
      }
  
      if (node.nodes) {
        for (let child of node.nodes) {
          output += walk(child, node);
        }
      }
      return output;
    };
  
    return walk(ast);
  };
  
  var compile_1 = compile$1;
  
  const fill = fillRange;
  const stringify$2 = stringify$4;
  const utils = utils$3;
  
  const append = (queue = '', stash = '', enclose = false) => {
    let result = [];
  
    queue = [].concat(queue);
    stash = [].concat(stash);
  
    if (!stash.length) return queue;
    if (!queue.length) {
      return enclose ? utils.flatten(stash).map(ele => `{${ele}}`) : stash;
    }
  
    for (let item of queue) {
      if (Array.isArray(item)) {
        for (let value of item) {
          result.push(append(value, stash, enclose));
        }
      } else {
        for (let ele of stash) {
          if (enclose === true && typeof ele === 'string') ele = `{${ele}}`;
          result.push(Array.isArray(ele) ? append(item, ele, enclose) : (item + ele));
        }
      }
    }
    return utils.flatten(result);
  };
  
  const expand$1 = (ast, options = {}) => {
    let rangeLimit = options.rangeLimit === void 0 ? 1000 : options.rangeLimit;
  
    let walk = (node, parent = {}) => {
      node.queue = [];
  
      let p = parent;
      let q = parent.queue;
  
      while (p.type !== 'brace' && p.type !== 'root' && p.parent) {
        p = p.parent;
        q = p.queue;
      }
  
      if (node.invalid || node.dollar) {
        q.push(append(q.pop(), stringify$2(node, options)));
        return;
      }
  
      if (node.type === 'brace' && node.invalid !== true && node.nodes.length === 2) {
        q.push(append(q.pop(), ['{}']));
        return;
      }
  
      if (node.nodes && node.ranges > 0) {
        let args = utils.reduce(node.nodes);
  
        if (utils.exceedsLimit(...args, options.step, rangeLimit)) {
          throw new RangeError('expanded array length exceeds range limit. Use options.rangeLimit to increase or disable the limit.');
        }
  
        let range = fill(...args, options);
        if (range.length === 0) {
          range = stringify$2(node, options);
        }
  
        q.push(append(q.pop(), range));
        node.nodes = [];
        return;
      }
  
      let enclose = utils.encloseBrace(node);
      let queue = node.queue;
      let block = node;
  
      while (block.type !== 'brace' && block.type !== 'root' && block.parent) {
        block = block.parent;
        queue = block.queue;
      }
  
      for (let i = 0; i < node.nodes.length; i++) {
        let child = node.nodes[i];
  
        if (child.type === 'comma' && node.type === 'brace') {
          if (i === 1) queue.push('');
          queue.push('');
          continue;
        }
  
        if (child.type === 'close') {
          q.push(append(q.pop(), queue, enclose));
          continue;
        }
  
        if (child.value && child.type !== 'open') {
          queue.push(append(queue.pop(), child.value));
          continue;
        }
  
        if (child.nodes) {
          walk(child, node);
        }
      }
  
      return queue;
    };
  
    return utils.flatten(walk(ast));
  };
  
  var expand_1 = expand$1;
  
  var constants$1 = {
    MAX_LENGTH: 1024 * 64,
  
    // Digits
    CHAR_0: '0', /* 0 */
    CHAR_9: '9', /* 9 */
  
    // Alphabet chars.
    CHAR_UPPERCASE_A: 'A', /* A */
    CHAR_LOWERCASE_A: 'a', /* a */
    CHAR_UPPERCASE_Z: 'Z', /* Z */
    CHAR_LOWERCASE_Z: 'z', /* z */
  
    CHAR_LEFT_PARENTHESES: '(', /* ( */
    CHAR_RIGHT_PARENTHESES: ')', /* ) */
  
    CHAR_ASTERISK: '*', /* * */
  
    // Non-alphabetic chars.
    CHAR_AMPERSAND: '&', /* & */
    CHAR_AT: '@', /* @ */
    CHAR_BACKSLASH: '\\', /* \ */
    CHAR_BACKTICK: '`', /* ` */
    CHAR_CARRIAGE_RETURN: '\r', /* \r */
    CHAR_CIRCUMFLEX_ACCENT: '^', /* ^ */
    CHAR_COLON: ':', /* : */
    CHAR_COMMA: ',', /* , */
    CHAR_DOLLAR: '$', /* . */
    CHAR_DOT: '.', /* . */
    CHAR_DOUBLE_QUOTE: '"', /* " */
    CHAR_EQUAL: '=', /* = */
    CHAR_EXCLAMATION_MARK: '!', /* ! */
    CHAR_FORM_FEED: '\f', /* \f */
    CHAR_FORWARD_SLASH: '/', /* / */
    CHAR_HASH: '#', /* # */
    CHAR_HYPHEN_MINUS: '-', /* - */
    CHAR_LEFT_ANGLE_BRACKET: '<', /* < */
    CHAR_LEFT_CURLY_BRACE: '{', /* { */
    CHAR_LEFT_SQUARE_BRACKET: '[', /* [ */
    CHAR_LINE_FEED: '\n', /* \n */
    CHAR_NO_BREAK_SPACE: '\u00A0', /* \u00A0 */
    CHAR_PERCENT: '%', /* % */
    CHAR_PLUS: '+', /* + */
    CHAR_QUESTION_MARK: '?', /* ? */
    CHAR_RIGHT_ANGLE_BRACKET: '>', /* > */
    CHAR_RIGHT_CURLY_BRACE: '}', /* } */
    CHAR_RIGHT_SQUARE_BRACKET: ']', /* ] */
    CHAR_SEMICOLON: ';', /* ; */
    CHAR_SINGLE_QUOTE: '\'', /* ' */
    CHAR_SPACE: ' ', /*   */
    CHAR_TAB: '\t', /* \t */
    CHAR_UNDERSCORE: '_', /* _ */
    CHAR_VERTICAL_LINE: '|', /* | */
    CHAR_ZERO_WIDTH_NOBREAK_SPACE: '\uFEFF' /* \uFEFF */
  };
  
  const stringify$1 = stringify$4;
  
  /**
   * Constants
   */
  
  const {
    MAX_LENGTH,
    CHAR_BACKSLASH, /* \ */
    CHAR_BACKTICK, /* ` */
    CHAR_COMMA, /* , */
    CHAR_DOT, /* . */
    CHAR_LEFT_PARENTHESES, /* ( */
    CHAR_RIGHT_PARENTHESES, /* ) */
    CHAR_LEFT_CURLY_BRACE, /* { */
    CHAR_RIGHT_CURLY_BRACE, /* } */
    CHAR_LEFT_SQUARE_BRACKET, /* [ */
    CHAR_RIGHT_SQUARE_BRACKET, /* ] */
    CHAR_DOUBLE_QUOTE, /* " */
    CHAR_SINGLE_QUOTE, /* ' */
    CHAR_NO_BREAK_SPACE,
    CHAR_ZERO_WIDTH_NOBREAK_SPACE
  } = constants$1;
  
  /**
   * parse
   */
  
  const parse$1 = (input, options = {}) => {
    if (typeof input !== 'string') {
      throw new TypeError('Expected a string');
    }
  
    let opts = options || {};
    let max = typeof opts.maxLength === 'number' ? Math.min(MAX_LENGTH, opts.maxLength) : MAX_LENGTH;
    if (input.length > max) {
      throw new SyntaxError(`Input length (${input.length}), exceeds max characters (${max})`);
    }
  
    let ast = { type: 'root', input, nodes: [] };
    let stack = [ast];
    let block = ast;
    let prev = ast;
    let brackets = 0;
    let length = input.length;
    let index = 0;
    let depth = 0;
    let value;
  
    /**
     * Helpers
     */
  
    const advance = () => input[index++];
    const push = node => {
      if (node.type === 'text' && prev.type === 'dot') {
        prev.type = 'text';
      }
  
      if (prev && prev.type === 'text' && node.type === 'text') {
        prev.value += node.value;
        return;
      }
  
      block.nodes.push(node);
      node.parent = block;
      node.prev = prev;
      prev = node;
      return node;
    };
  
    push({ type: 'bos' });
  
    while (index < length) {
      block = stack[stack.length - 1];
      value = advance();
  
      /**
       * Invalid chars
       */
  
      if (value === CHAR_ZERO_WIDTH_NOBREAK_SPACE || value === CHAR_NO_BREAK_SPACE) {
        continue;
      }
  
      /**
       * Escaped chars
       */
  
      if (value === CHAR_BACKSLASH) {
        push({ type: 'text', value: (options.keepEscaping ? value : '') + advance() });
        continue;
      }
  
      /**
       * Right square bracket (literal): ']'
       */
  
      if (value === CHAR_RIGHT_SQUARE_BRACKET) {
        push({ type: 'text', value: '\\' + value });
        continue;
      }
  
      /**
       * Left square bracket: '['
       */
  
      if (value === CHAR_LEFT_SQUARE_BRACKET) {
        brackets++;
        let next;
  
        while (index < length && (next = advance())) {
          value += next;
  
          if (next === CHAR_LEFT_SQUARE_BRACKET) {
            brackets++;
            continue;
          }
  
          if (next === CHAR_BACKSLASH) {
            value += advance();
            continue;
          }
  
          if (next === CHAR_RIGHT_SQUARE_BRACKET) {
            brackets--;
  
            if (brackets === 0) {
              break;
            }
          }
        }
  
        push({ type: 'text', value });
        continue;
      }
  
      /**
       * Parentheses
       */
  
      if (value === CHAR_LEFT_PARENTHESES) {
        block = push({ type: 'paren', nodes: [] });
        stack.push(block);
        push({ type: 'text', value });
        continue;
      }
  
      if (value === CHAR_RIGHT_PARENTHESES) {
        if (block.type !== 'paren') {
          push({ type: 'text', value });
          continue;
        }
        block = stack.pop();
        push({ type: 'text', value });
        block = stack[stack.length - 1];
        continue;
      }
  
      /**
       * Quotes: '|"|`
       */
  
      if (value === CHAR_DOUBLE_QUOTE || value === CHAR_SINGLE_QUOTE || value === CHAR_BACKTICK) {
        let open = value;
        let next;
  
        if (options.keepQuotes !== true) {
          value = '';
        }
  
        while (index < length && (next = advance())) {
          if (next === CHAR_BACKSLASH) {
            value += next + advance();
            continue;
          }
  
          if (next === open) {
            if (options.keepQuotes === true) value += next;
            break;
          }
  
          value += next;
        }
  
        push({ type: 'text', value });
        continue;
      }
  
      /**
       * Left curly brace: '{'
       */
  
      if (value === CHAR_LEFT_CURLY_BRACE) {
        depth++;
  
        let dollar = prev.value && prev.value.slice(-1) === '$' || block.dollar === true;
        let brace = {
          type: 'brace',
          open: true,
          close: false,
          dollar,
          depth,
          commas: 0,
          ranges: 0,
          nodes: []
        };
  
        block = push(brace);
        stack.push(block);
        push({ type: 'open', value });
        continue;
      }
  
      /**
       * Right curly brace: '}'
       */
  
      if (value === CHAR_RIGHT_CURLY_BRACE) {
        if (block.type !== 'brace') {
          push({ type: 'text', value });
          continue;
        }
  
        let type = 'close';
        block = stack.pop();
        block.close = true;
  
        push({ type, value });
        depth--;
  
        block = stack[stack.length - 1];
        continue;
      }
  
      /**
       * Comma: ','
       */
  
      if (value === CHAR_COMMA && depth > 0) {
        if (block.ranges > 0) {
          block.ranges = 0;
          let open = block.nodes.shift();
          block.nodes = [open, { type: 'text', value: stringify$1(block) }];
        }
  
        push({ type: 'comma', value });
        block.commas++;
        continue;
      }
  
      /**
       * Dot: '.'
       */
  
      if (value === CHAR_DOT && depth > 0 && block.commas === 0) {
        let siblings = block.nodes;
  
        if (depth === 0 || siblings.length === 0) {
          push({ type: 'text', value });
          continue;
        }
  
        if (prev.type === 'dot') {
          block.range = [];
          prev.value += value;
          prev.type = 'range';
  
          if (block.nodes.length !== 3 && block.nodes.length !== 5) {
            block.invalid = true;
            block.ranges = 0;
            prev.type = 'text';
            continue;
          }
  
          block.ranges++;
          block.args = [];
          continue;
        }
  
        if (prev.type === 'range') {
          siblings.pop();
  
          let before = siblings[siblings.length - 1];
          before.value += prev.value + value;
          prev = before;
          block.ranges--;
          continue;
        }
  
        push({ type: 'dot', value });
        continue;
      }
  
      /**
       * Text
       */
  
      push({ type: 'text', value });
    }
  
    // Mark imbalanced braces and brackets as invalid
    do {
      block = stack.pop();
  
      if (block.type !== 'root') {
        block.nodes.forEach(node => {
          if (!node.nodes) {
            if (node.type === 'open') node.isOpen = true;
            if (node.type === 'close') node.isClose = true;
            if (!node.nodes) node.type = 'text';
            node.invalid = true;
          }
        });
  
        // get the location of the block on parent.nodes (block's siblings)
        let parent = stack[stack.length - 1];
        let index = parent.nodes.indexOf(block);
        // replace the (invalid) block with it's nodes
        parent.nodes.splice(index, 1, ...block.nodes);
      }
    } while (stack.length > 0);
  
    push({ type: 'eos' });
    return ast;
  };
  
  var parse_1 = parse$1;
  
  const stringify = stringify$4;
  const compile = compile_1;
  const expand = expand_1;
  const parse = parse_1;
  
  /**
   * Expand the given pattern or create a regex-compatible string.
   *
   * ```js
   * const braces = require('braces');
   * console.log(braces('{a,b,c}', { compile: true })); //=> ['(a|b|c)']
   * console.log(braces('{a,b,c}')); //=> ['a', 'b', 'c']
   * ```
   * @param {String} `str`
   * @param {Object} `options`
   * @return {String}
   * @api public
   */
  
  const braces$1 = (input, options = {}) => {
    let output = [];
  
    if (Array.isArray(input)) {
      for (let pattern of input) {
        let result = braces$1.create(pattern, options);
        if (Array.isArray(result)) {
          output.push(...result);
        } else {
          output.push(result);
        }
      }
    } else {
      output = [].concat(braces$1.create(input, options));
    }
  
    if (options && options.expand === true && options.nodupes === true) {
      output = [...new Set(output)];
    }
    return output;
  };
  
  /**
   * Parse the given `str` with the given `options`.
   *
   * ```js
   * // braces.parse(pattern, [, options]);
   * const ast = braces.parse('a/{b,c}/d');
   * console.log(ast);
   * ```
   * @param {String} pattern Brace pattern to parse
   * @param {Object} options
   * @return {Object} Returns an AST
   * @api public
   */
  
  braces$1.parse = (input, options = {}) => parse(input, options);
  
  /**
   * Creates a braces string from an AST, or an AST node.
   *
   * ```js
   * const braces = require('braces');
   * let ast = braces.parse('foo/{a,b}/bar');
   * console.log(stringify(ast.nodes[2])); //=> '{a,b}'
   * ```
   * @param {String} `input` Brace pattern or AST.
   * @param {Object} `options`
   * @return {Array} Returns an array of expanded values.
   * @api public
   */
  
  braces$1.stringify = (input, options = {}) => {
    if (typeof input === 'string') {
      return stringify(braces$1.parse(input, options), options);
    }
    return stringify(input, options);
  };
  
  /**
   * Compiles a brace pattern into a regex-compatible, optimized string.
   * This method is called by the main [braces](#braces) function by default.
   *
   * ```js
   * const braces = require('braces');
   * console.log(braces.compile('a/{b,c}/d'));
   * //=> ['a/(b|c)/d']
   * ```
   * @param {String} `input` Brace pattern or AST.
   * @param {Object} `options`
   * @return {Array} Returns an array of expanded values.
   * @api public
   */
  
  braces$1.compile = (input, options = {}) => {
    if (typeof input === 'string') {
      input = braces$1.parse(input, options);
    }
    return compile(input, options);
  };
  
  /**
   * Expands a brace pattern into an array. This method is called by the
   * main [braces](#braces) function when `options.expand` is true. Before
   * using this method it's recommended that you read the [performance notes](#performance))
   * and advantages of using [.compile](#compile) instead.
   *
   * ```js
   * const braces = require('braces');
   * console.log(braces.expand('a/{b,c}/d'));
   * //=> ['a/b/d', 'a/c/d'];
   * ```
   * @param {String} `pattern` Brace pattern
   * @param {Object} `options`
   * @return {Array} Returns an array of expanded values.
   * @api public
   */
  
  braces$1.expand = (input, options = {}) => {
    if (typeof input === 'string') {
      input = braces$1.parse(input, options);
    }
  
    let result = expand(input, options);
  
    // filter out empty strings if specified
    if (options.noempty === true) {
      result = result.filter(Boolean);
    }
  
    // filter out duplicates if specified
    if (options.nodupes === true) {
      result = [...new Set(result)];
    }
  
    return result;
  };
  
  /**
   * Processes a brace pattern and returns either an expanded array
   * (if `options.expand` is true), a highly optimized regex-compatible string.
   * This method is called by the main [braces](#braces) function.
   *
   * ```js
   * const braces = require('braces');
   * console.log(braces.create('user-{200..300}/project-{a,b,c}-{1..10}'))
   * //=> 'user-(20[0-9]|2[1-9][0-9]|300)/project-(a|b|c)-([1-9]|10)'
   * ```
   * @param {String} `pattern` Brace pattern
   * @param {Object} `options`
   * @return {Array} Returns an array of expanded values.
   * @api public
   */
  
  braces$1.create = (input, options = {}) => {
    if (input === '' || input.length < 3) {
      return [input];
    }
  
   return options.expand !== true
      ? braces$1.compile(input, options)
      : braces$1.expand(input, options);
  };
  
  /**
   * Expose "braces"
   */
  
  var braces_1 = braces$1;
  
  var binaryExtensions$1 = {exports: {}};
  
  const require$$0 = [
  	"3dm",
  	"3ds",
  	"3g2",
  	"3gp",
  	"7z",
  	"a",
  	"aac",
  	"adp",
  	"ai",
  	"aif",
  	"aiff",
  	"alz",
  	"ape",
  	"apk",
  	"appimage",
  	"ar",
  	"arj",
  	"asf",
  	"au",
  	"avi",
  	"bak",
  	"baml",
  	"bh",
  	"bin",
  	"bk",
  	"bmp",
  	"btif",
  	"bz2",
  	"bzip2",
  	"cab",
  	"caf",
  	"cgm",
  	"class",
  	"cmx",
  	"cpio",
  	"cr2",
  	"cur",
  	"dat",
  	"dcm",
  	"deb",
  	"dex",
  	"djvu",
  	"dll",
  	"dmg",
  	"dng",
  	"doc",
  	"docm",
  	"docx",
  	"dot",
  	"dotm",
  	"dra",
  	"DS_Store",
  	"dsk",
  	"dts",
  	"dtshd",
  	"dvb",
  	"dwg",
  	"dxf",
  	"ecelp4800",
  	"ecelp7470",
  	"ecelp9600",
  	"egg",
  	"eol",
  	"eot",
  	"epub",
  	"exe",
  	"f4v",
  	"fbs",
  	"fh",
  	"fla",
  	"flac",
  	"flatpak",
  	"fli",
  	"flv",
  	"fpx",
  	"fst",
  	"fvt",
  	"g3",
  	"gh",
  	"gif",
  	"graffle",
  	"gz",
  	"gzip",
  	"h261",
  	"h263",
  	"h264",
  	"icns",
  	"ico",
  	"ief",
  	"img",
  	"ipa",
  	"iso",
  	"jar",
  	"jpeg",
  	"jpg",
  	"jpgv",
  	"jpm",
  	"jxr",
  	"key",
  	"ktx",
  	"lha",
  	"lib",
  	"lvp",
  	"lz",
  	"lzh",
  	"lzma",
  	"lzo",
  	"m3u",
  	"m4a",
  	"m4v",
  	"mar",
  	"mdi",
  	"mht",
  	"mid",
  	"midi",
  	"mj2",
  	"mka",
  	"mkv",
  	"mmr",
  	"mng",
  	"mobi",
  	"mov",
  	"movie",
  	"mp3",
  	"mp4",
  	"mp4a",
  	"mpeg",
  	"mpg",
  	"mpga",
  	"mxu",
  	"nef",
  	"npx",
  	"numbers",
  	"nupkg",
  	"o",
  	"odp",
  	"ods",
  	"odt",
  	"oga",
  	"ogg",
  	"ogv",
  	"otf",
  	"ott",
  	"pages",
  	"pbm",
  	"pcx",
  	"pdb",
  	"pdf",
  	"pea",
  	"pgm",
  	"pic",
  	"png",
  	"pnm",
  	"pot",
  	"potm",
  	"potx",
  	"ppa",
  	"ppam",
  	"ppm",
  	"pps",
  	"ppsm",
  	"ppsx",
  	"ppt",
  	"pptm",
  	"pptx",
  	"psd",
  	"pya",
  	"pyc",
  	"pyo",
  	"pyv",
  	"qt",
  	"rar",
  	"ras",
  	"raw",
  	"resources",
  	"rgb",
  	"rip",
  	"rlc",
  	"rmf",
  	"rmvb",
  	"rpm",
  	"rtf",
  	"rz",
  	"s3m",
  	"s7z",
  	"scpt",
  	"sgi",
  	"shar",
  	"snap",
  	"sil",
  	"sketch",
  	"slk",
  	"smv",
  	"snk",
  	"so",
  	"stl",
  	"suo",
  	"sub",
  	"swf",
  	"tar",
  	"tbz",
  	"tbz2",
  	"tga",
  	"tgz",
  	"thmx",
  	"tif",
  	"tiff",
  	"tlz",
  	"ttc",
  	"ttf",
  	"txz",
  	"udf",
  	"uvh",
  	"uvi",
  	"uvm",
  	"uvp",
  	"uvs",
  	"uvu",
  	"viv",
  	"vob",
  	"war",
  	"wav",
  	"wax",
  	"wbmp",
  	"wdp",
  	"weba",
  	"webm",
  	"webp",
  	"whl",
  	"wim",
  	"wm",
  	"wma",
  	"wmv",
  	"wmx",
  	"woff",
  	"woff2",
  	"wrm",
  	"wvx",
  	"xbm",
  	"xif",
  	"xla",
  	"xlam",
  	"xls",
  	"xlsb",
  	"xlsm",
  	"xlsx",
  	"xlt",
  	"xltm",
  	"xltx",
  	"xm",
  	"xmind",
  	"xpi",
  	"xpm",
  	"xwd",
  	"xz",
  	"z",
  	"zip",
  	"zipx"
  ];
  
  (function (module) {
  	module.exports = require$$0;
  } (binaryExtensions$1));
  
  const path = require$$0$2;
  const binaryExtensions = binaryExtensions$1.exports;
  
  const extensions = new Set(binaryExtensions);
  
  var isBinaryPath$1 = filePath => extensions.has(path.extname(filePath).slice(1).toLowerCase());
  
  var constants = {};
  
  (function (exports) {
  
  	const {sep} = require$$0$2;
  	const {platform} = process;
  	const os = require$$2$1;
  
  	exports.EV_ALL = 'all';
  	exports.EV_READY = 'ready';
  	exports.EV_ADD = 'add';
  	exports.EV_CHANGE = 'change';
  	exports.EV_ADD_DIR = 'addDir';
  	exports.EV_UNLINK = 'unlink';
  	exports.EV_UNLINK_DIR = 'unlinkDir';
  	exports.EV_RAW = 'raw';
  	exports.EV_ERROR = 'error';
  
  	exports.STR_DATA = 'data';
  	exports.STR_END = 'end';
  	exports.STR_CLOSE = 'close';
  
  	exports.FSEVENT_CREATED = 'created';
  	exports.FSEVENT_MODIFIED = 'modified';
  	exports.FSEVENT_DELETED = 'deleted';
  	exports.FSEVENT_MOVED = 'moved';
  	exports.FSEVENT_CLONED = 'cloned';
  	exports.FSEVENT_UNKNOWN = 'unknown';
  	exports.FSEVENT_TYPE_FILE = 'file';
  	exports.FSEVENT_TYPE_DIRECTORY = 'directory';
  	exports.FSEVENT_TYPE_SYMLINK = 'symlink';
  
  	exports.KEY_LISTENERS = 'listeners';
  	exports.KEY_ERR = 'errHandlers';
  	exports.KEY_RAW = 'rawEmitters';
  	exports.HANDLER_KEYS = [exports.KEY_LISTENERS, exports.KEY_ERR, exports.KEY_RAW];
  
  	exports.DOT_SLASH = `.${sep}`;
  
  	exports.BACK_SLASH_RE = /\\/g;
  	exports.DOUBLE_SLASH_RE = /\/\//;
  	exports.SLASH_OR_BACK_SLASH_RE = /[/\\]/;
  	exports.DOT_RE = /\..*\.(sw[px])$|~$|\.subl.*\.tmp/;
  	exports.REPLACER_RE = /^\.[/\\]/;
  
  	exports.SLASH = '/';
  	exports.SLASH_SLASH = '//';
  	exports.BRACE_START = '{';
  	exports.BANG = '!';
  	exports.ONE_DOT = '.';
  	exports.TWO_DOTS = '..';
  	exports.STAR = '*';
  	exports.GLOBSTAR = '**';
  	exports.ROOT_GLOBSTAR = '/**/*';
  	exports.SLASH_GLOBSTAR = '/**';
  	exports.DIR_SUFFIX = 'Dir';
  	exports.ANYMATCH_OPTS = {dot: true};
  	exports.STRING_TYPE = 'string';
  	exports.FUNCTION_TYPE = 'function';
  	exports.EMPTY_STR = '';
  	exports.EMPTY_FN = () => {};
  	exports.IDENTITY_FN = val => val;
  
  	exports.isWindows = platform === 'win32';
  	exports.isMacos = platform === 'darwin';
  	exports.isLinux = platform === 'linux';
  	exports.isIBMi = os.type() === 'OS400';
  } (constants));
  
  const fs$2 = require$$0$1;
  const sysPath$2 = require$$0$2;
  const { promisify: promisify$2 } = require$$2;
  const isBinaryPath = isBinaryPath$1;
  const {
    isWindows: isWindows$1,
    isLinux,
    EMPTY_FN: EMPTY_FN$2,
    EMPTY_STR: EMPTY_STR$1,
    KEY_LISTENERS,
    KEY_ERR,
    KEY_RAW,
    HANDLER_KEYS,
    EV_CHANGE: EV_CHANGE$2,
    EV_ADD: EV_ADD$2,
    EV_ADD_DIR: EV_ADD_DIR$2,
    EV_ERROR: EV_ERROR$2,
    STR_DATA: STR_DATA$1,
    STR_END: STR_END$2,
    BRACE_START: BRACE_START$1,
    STAR
  } = constants;
  
  const THROTTLE_MODE_WATCH = 'watch';
  
  const open = promisify$2(fs$2.open);
  const stat$2 = promisify$2(fs$2.stat);
  const lstat$1 = promisify$2(fs$2.lstat);
  const close = promisify$2(fs$2.close);
  const fsrealpath = promisify$2(fs$2.realpath);
  
  const statMethods$1 = { lstat: lstat$1, stat: stat$2 };
  
  // TODO: emit errors properly. Example: EMFILE on Macos.
  const foreach = (val, fn) => {
    if (val instanceof Set) {
      val.forEach(fn);
    } else {
      fn(val);
    }
  };
  
  const addAndConvert = (main, prop, item) => {
    let container = main[prop];
    if (!(container instanceof Set)) {
      main[prop] = container = new Set([container]);
    }
    container.add(item);
  };
  
  const clearItem = cont => key => {
    const set = cont[key];
    if (set instanceof Set) {
      set.clear();
    } else {
      delete cont[key];
    }
  };
  
  const delFromSet = (main, prop, item) => {
    const container = main[prop];
    if (container instanceof Set) {
      container.delete(item);
    } else if (container === item) {
      delete main[prop];
    }
  };
  
  const isEmptySet = (val) => val instanceof Set ? val.size === 0 : !val;
  
  /**
   * @typedef {String} Path
   */
  
  // fs_watch helpers
  
  // object to hold per-process fs_watch instances
  // (may be shared across chokidar FSWatcher instances)
  
  /**
   * @typedef {Object} FsWatchContainer
   * @property {Set} listeners
   * @property {Set} errHandlers
   * @property {Set} rawEmitters
   * @property {fs.FSWatcher=} watcher
   * @property {Boolean=} watcherUnusable
   */
  
  /**
   * @type {Map<String,FsWatchContainer>}
   */
  const FsWatchInstances = new Map();
  
  /**
   * Instantiates the fs_watch interface
   * @param {String} path to be watched
   * @param {Object} options to be passed to fs_watch
   * @param {Function} listener main event handler
   * @param {Function} errHandler emits info about errors
   * @param {Function} emitRaw emits raw event data
   * @returns {fs.FSWatcher} new fsevents instance
   */
  function createFsWatchInstance(path, options, listener, errHandler, emitRaw) {
    const handleEvent = (rawEvent, evPath) => {
      listener(path);
      emitRaw(rawEvent, evPath, {watchedPath: path});
  
      // emit based on events occurring for files from a directory's watcher in
      // case the file's watcher misses it (and rely on throttling to de-dupe)
      if (evPath && path !== evPath) {
        fsWatchBroadcast(
          sysPath$2.resolve(path, evPath), KEY_LISTENERS, sysPath$2.join(path, evPath)
        );
      }
    };
    try {
      return fs$2.watch(path, options, handleEvent);
    } catch (error) {
      errHandler(error);
    }
  }
  
  /**
   * Helper for passing fs_watch event data to a collection of listeners
   * @param {Path} fullPath absolute path bound to fs_watch instance
   * @param {String} type listener type
   * @param {*=} val1 arguments to be passed to listeners
   * @param {*=} val2
   * @param {*=} val3
   */
  const fsWatchBroadcast = (fullPath, type, val1, val2, val3) => {
    const cont = FsWatchInstances.get(fullPath);
    if (!cont) return;
    foreach(cont[type], (listener) => {
      listener(val1, val2, val3);
    });
  };
  
  /**
   * Instantiates the fs_watch interface or binds listeners
   * to an existing one covering the same file system entry
   * @param {String} path
   * @param {String} fullPath absolute path
   * @param {Object} options to be passed to fs_watch
   * @param {Object} handlers container for event listener functions
   */
  const setFsWatchListener = (path, fullPath, options, handlers) => {
    const {listener, errHandler, rawEmitter} = handlers;
    let cont = FsWatchInstances.get(fullPath);
  
    /** @type {fs.FSWatcher=} */
    let watcher;
    if (!options.persistent) {
      watcher = createFsWatchInstance(
        path, options, listener, errHandler, rawEmitter
      );
      return watcher.close.bind(watcher);
    }
    if (cont) {
      addAndConvert(cont, KEY_LISTENERS, listener);
      addAndConvert(cont, KEY_ERR, errHandler);
      addAndConvert(cont, KEY_RAW, rawEmitter);
    } else {
      watcher = createFsWatchInstance(
        path,
        options,
        fsWatchBroadcast.bind(null, fullPath, KEY_LISTENERS),
        errHandler, // no need to use broadcast here
        fsWatchBroadcast.bind(null, fullPath, KEY_RAW)
      );
      if (!watcher) return;
      watcher.on(EV_ERROR$2, async (error) => {
        const broadcastErr = fsWatchBroadcast.bind(null, fullPath, KEY_ERR);
        cont.watcherUnusable = true; // documented since Node 10.4.1
        // Workaround for https://github.com/joyent/node/issues/4337
        if (isWindows$1 && error.code === 'EPERM') {
          try {
            const fd = await open(path, 'r');
            await close(fd);
            broadcastErr(error);
          } catch (err) {}
        } else {
          broadcastErr(error);
        }
      });
      cont = {
        listeners: listener,
        errHandlers: errHandler,
        rawEmitters: rawEmitter,
        watcher
      };
      FsWatchInstances.set(fullPath, cont);
    }
    // const index = cont.listeners.indexOf(listener);
  
    // removes this instance's listeners and closes the underlying fs_watch
    // instance if there are no more listeners left
    return () => {
      delFromSet(cont, KEY_LISTENERS, listener);
      delFromSet(cont, KEY_ERR, errHandler);
      delFromSet(cont, KEY_RAW, rawEmitter);
      if (isEmptySet(cont.listeners)) {
        // Check to protect against issue gh-730.
        // if (cont.watcherUnusable) {
        cont.watcher.close();
        // }
        FsWatchInstances.delete(fullPath);
        HANDLER_KEYS.forEach(clearItem(cont));
        cont.watcher = undefined;
        Object.freeze(cont);
      }
    };
  };
  
  // fs_watchFile helpers
  
  // object to hold per-process fs_watchFile instances
  // (may be shared across chokidar FSWatcher instances)
  const FsWatchFileInstances = new Map();
  
  /**
   * Instantiates the fs_watchFile interface or binds listeners
   * to an existing one covering the same file system entry
   * @param {String} path to be watched
   * @param {String} fullPath absolute path
   * @param {Object} options options to be passed to fs_watchFile
   * @param {Object} handlers container for event listener functions
   * @returns {Function} closer
   */
  const setFsWatchFileListener = (path, fullPath, options, handlers) => {
    const {listener, rawEmitter} = handlers;
    let cont = FsWatchFileInstances.get(fullPath);
  
    const copts = cont && cont.options;
    if (copts && (copts.persistent < options.persistent || copts.interval > options.interval)) {
      fs$2.unwatchFile(fullPath);
      cont = undefined;
    }
  
    /* eslint-enable no-unused-vars, prefer-destructuring */
  
    if (cont) {
      addAndConvert(cont, KEY_LISTENERS, listener);
      addAndConvert(cont, KEY_RAW, rawEmitter);
    } else {
      // TODO
      // listeners.add(listener);
      // rawEmitters.add(rawEmitter);
      cont = {
        listeners: listener,
        rawEmitters: rawEmitter,
        options,
        watcher: fs$2.watchFile(fullPath, options, (curr, prev) => {
          foreach(cont.rawEmitters, (rawEmitter) => {
            rawEmitter(EV_CHANGE$2, fullPath, {curr, prev});
          });
          const currmtime = curr.mtimeMs;
          if (curr.size !== prev.size || currmtime > prev.mtimeMs || currmtime === 0) {
            foreach(cont.listeners, (listener) => listener(path, curr));
          }
        })
      };
      FsWatchFileInstances.set(fullPath, cont);
    }
    // const index = cont.listeners.indexOf(listener);
  
    // Removes this instance's listeners and closes the underlying fs_watchFile
    // instance if there are no more listeners left.
    return () => {
      delFromSet(cont, KEY_LISTENERS, listener);
      delFromSet(cont, KEY_RAW, rawEmitter);
      if (isEmptySet(cont.listeners)) {
        FsWatchFileInstances.delete(fullPath);
        fs$2.unwatchFile(fullPath);
        cont.options = cont.watcher = undefined;
        Object.freeze(cont);
      }
    };
  };
  
  /**
   * @mixin
   */
  class NodeFsHandler$1 {
  
  /**
   * @param {import("../index").FSWatcher} fsW
   */
  constructor(fsW) {
    this.fsw = fsW;
    this._boundHandleError = (error) => fsW._handleError(error);
  }
  
  /**
   * Watch file for changes with fs_watchFile or fs_watch.
   * @param {String} path to file or dir
   * @param {Function} listener on fs change
   * @returns {Function} closer for the watcher instance
   */
  _watchWithNodeFs(path, listener) {
    const opts = this.fsw.options;
    const directory = sysPath$2.dirname(path);
    const basename = sysPath$2.basename(path);
    const parent = this.fsw._getWatchedDir(directory);
    parent.add(basename);
    const absolutePath = sysPath$2.resolve(path);
    const options = {persistent: opts.persistent};
    if (!listener) listener = EMPTY_FN$2;
  
    let closer;
    if (opts.usePolling) {
      options.interval = opts.enableBinaryInterval && isBinaryPath(basename) ?
        opts.binaryInterval : opts.interval;
      closer = setFsWatchFileListener(path, absolutePath, options, {
        listener,
        rawEmitter: this.fsw._emitRaw
      });
    } else {
      closer = setFsWatchListener(path, absolutePath, options, {
        listener,
        errHandler: this._boundHandleError,
        rawEmitter: this.fsw._emitRaw
      });
    }
    return closer;
  }
  
  /**
   * Watch a file and emit add event if warranted.
   * @param {Path} file Path
   * @param {fs.Stats} stats result of fs_stat
   * @param {Boolean} initialAdd was the file added at watch instantiation?
   * @returns {Function} closer for the watcher instance
   */
  _handleFile(file, stats, initialAdd) {
    if (this.fsw.closed) {
      return;
    }
    const dirname = sysPath$2.dirname(file);
    const basename = sysPath$2.basename(file);
    const parent = this.fsw._getWatchedDir(dirname);
    // stats is always present
    let prevStats = stats;
  
    // if the file is already being watched, do nothing
    if (parent.has(basename)) return;
  
    const listener = async (path, newStats) => {
      if (!this.fsw._throttle(THROTTLE_MODE_WATCH, file, 5)) return;
      if (!newStats || newStats.mtimeMs === 0) {
        try {
          const newStats = await stat$2(file);
          if (this.fsw.closed) return;
          // Check that change event was not fired because of changed only accessTime.
          const at = newStats.atimeMs;
          const mt = newStats.mtimeMs;
          if (!at || at <= mt || mt !== prevStats.mtimeMs) {
            this.fsw._emit(EV_CHANGE$2, file, newStats);
          }
          if (isLinux && prevStats.ino !== newStats.ino) {
            this.fsw._closeFile(path);
            prevStats = newStats;
            this.fsw._addPathCloser(path, this._watchWithNodeFs(file, listener));
          } else {
            prevStats = newStats;
          }
        } catch (error) {
          // Fix issues where mtime is null but file is still present
          this.fsw._remove(dirname, basename);
        }
        // add is about to be emitted if file not already tracked in parent
      } else if (parent.has(basename)) {
        // Check that change event was not fired because of changed only accessTime.
        const at = newStats.atimeMs;
        const mt = newStats.mtimeMs;
        if (!at || at <= mt || mt !== prevStats.mtimeMs) {
          this.fsw._emit(EV_CHANGE$2, file, newStats);
        }
        prevStats = newStats;
      }
    };
    // kick off the watcher
    const closer = this._watchWithNodeFs(file, listener);
  
    // emit an add event if we're supposed to
    if (!(initialAdd && this.fsw.options.ignoreInitial) && this.fsw._isntIgnored(file)) {
      if (!this.fsw._throttle(EV_ADD$2, file, 0)) return;
      this.fsw._emit(EV_ADD$2, file, stats);
    }
  
    return closer;
  }
  
  /**
   * Handle symlinks encountered while reading a dir.
   * @param {Object} entry returned by readdirp
   * @param {String} directory path of dir being read
   * @param {String} path of this item
   * @param {String} item basename of this item
   * @returns {Promise<Boolean>} true if no more processing is needed for this entry.
   */
  async _handleSymlink(entry, directory, path, item) {
    if (this.fsw.closed) {
      return;
    }
    const full = entry.fullPath;
    const dir = this.fsw._getWatchedDir(directory);
  
    if (!this.fsw.options.followSymlinks) {
      // watch symlink directly (don't follow) and detect changes
      this.fsw._incrReadyCount();
  
      let linkPath;
      try {
        linkPath = await fsrealpath(path);
      } catch (e) {
        this.fsw._emitReady();
        return true;
      }
  
      if (this.fsw.closed) return;
      if (dir.has(item)) {
        if (this.fsw._symlinkPaths.get(full) !== linkPath) {
          this.fsw._symlinkPaths.set(full, linkPath);
          this.fsw._emit(EV_CHANGE$2, path, entry.stats);
        }
      } else {
        dir.add(item);
        this.fsw._symlinkPaths.set(full, linkPath);
        this.fsw._emit(EV_ADD$2, path, entry.stats);
      }
      this.fsw._emitReady();
      return true;
    }
  
    // don't follow the same symlink more than once
    if (this.fsw._symlinkPaths.has(full)) {
      return true;
    }
  
    this.fsw._symlinkPaths.set(full, true);
  }
  
  _handleRead(directory, initialAdd, wh, target, dir, depth, throttler) {
    // Normalize the directory name on Windows
    directory = sysPath$2.join(directory, EMPTY_STR$1);
  
    if (!wh.hasGlob) {
      throttler = this.fsw._throttle('readdir', directory, 1000);
      if (!throttler) return;
    }
  
    const previous = this.fsw._getWatchedDir(wh.path);
    const current = new Set();
  
    let stream = this.fsw._readdirp(directory, {
      fileFilter: entry => wh.filterPath(entry),
      directoryFilter: entry => wh.filterDir(entry),
      depth: 0
    }).on(STR_DATA$1, async (entry) => {
      if (this.fsw.closed) {
        stream = undefined;
        return;
      }
      const item = entry.path;
      let path = sysPath$2.join(directory, item);
      current.add(item);
  
      if (entry.stats.isSymbolicLink() && await this._handleSymlink(entry, directory, path, item)) {
        return;
      }
  
      if (this.fsw.closed) {
        stream = undefined;
        return;
      }
      // Files that present in current directory snapshot
      // but absent in previous are added to watch list and
      // emit `add` event.
      if (item === target || !target && !previous.has(item)) {
        this.fsw._incrReadyCount();
  
        // ensure relativeness of path is preserved in case of watcher reuse
        path = sysPath$2.join(dir, sysPath$2.relative(dir, path));
  
        this._addToNodeFs(path, initialAdd, wh, depth + 1);
      }
    }).on(EV_ERROR$2, this._boundHandleError);
  
    return new Promise(resolve =>
      stream.once(STR_END$2, () => {
        if (this.fsw.closed) {
          stream = undefined;
          return;
        }
        const wasThrottled = throttler ? throttler.clear() : false;
  
        resolve();
  
        // Files that absent in current directory snapshot
        // but present in previous emit `remove` event
        // and are removed from @watched[directory].
        previous.getChildren().filter((item) => {
          return item !== directory &&
            !current.has(item) &&
            // in case of intersecting globs;
            // a path may have been filtered out of this readdir, but
            // shouldn't be removed because it matches a different glob
            (!wh.hasGlob || wh.filterPath({
              fullPath: sysPath$2.resolve(directory, item)
            }));
        }).forEach((item) => {
          this.fsw._remove(directory, item);
        });
  
        stream = undefined;
  
        // one more time for any missed in case changes came in extremely quickly
        if (wasThrottled) this._handleRead(directory, false, wh, target, dir, depth, throttler);
      })
    );
  }
  
  /**
   * Read directory to add / remove files from `@watched` list and re-read it on change.
   * @param {String} dir fs path
   * @param {fs.Stats} stats
   * @param {Boolean} initialAdd
   * @param {Number} depth relative to user-supplied path
   * @param {String} target child path targeted for watch
   * @param {Object} wh Common watch helpers for this path
   * @param {String} realpath
   * @returns {Promise<Function>} closer for the watcher instance.
   */
  async _handleDir(dir, stats, initialAdd, depth, target, wh, realpath) {
    const parentDir = this.fsw._getWatchedDir(sysPath$2.dirname(dir));
    const tracked = parentDir.has(sysPath$2.basename(dir));
    if (!(initialAdd && this.fsw.options.ignoreInitial) && !target && !tracked) {
      if (!wh.hasGlob || wh.globFilter(dir)) this.fsw._emit(EV_ADD_DIR$2, dir, stats);
    }
  
    // ensure dir is tracked (harmless if redundant)
    parentDir.add(sysPath$2.basename(dir));
    this.fsw._getWatchedDir(dir);
    let throttler;
    let closer;
  
    const oDepth = this.fsw.options.depth;
    if ((oDepth == null || depth <= oDepth) && !this.fsw._symlinkPaths.has(realpath)) {
      if (!target) {
        await this._handleRead(dir, initialAdd, wh, target, dir, depth, throttler);
        if (this.fsw.closed) return;
      }
  
      closer = this._watchWithNodeFs(dir, (dirPath, stats) => {
        // if current directory is removed, do nothing
        if (stats && stats.mtimeMs === 0) return;
  
        this._handleRead(dirPath, false, wh, target, dir, depth, throttler);
      });
    }
    return closer;
  }
  
  /**
   * Handle added file, directory, or glob pattern.
   * Delegates call to _handleFile / _handleDir after checks.
   * @param {String} path to file or ir
   * @param {Boolean} initialAdd was the file added at watch instantiation?
   * @param {Object} priorWh depth relative to user-supplied path
   * @param {Number} depth Child path actually targeted for watch
   * @param {String=} target Child path actually targeted for watch
   * @returns {Promise}
   */
  async _addToNodeFs(path, initialAdd, priorWh, depth, target) {
    const ready = this.fsw._emitReady;
    if (this.fsw._isIgnored(path) || this.fsw.closed) {
      ready();
      return false;
    }
  
    const wh = this.fsw._getWatchHelpers(path, depth);
    if (!wh.hasGlob && priorWh) {
      wh.hasGlob = priorWh.hasGlob;
      wh.globFilter = priorWh.globFilter;
      wh.filterPath = entry => priorWh.filterPath(entry);
      wh.filterDir = entry => priorWh.filterDir(entry);
    }
  
    // evaluate what is at the path we're being asked to watch
    try {
      const stats = await statMethods$1[wh.statMethod](wh.watchPath);
      if (this.fsw.closed) return;
      if (this.fsw._isIgnored(wh.watchPath, stats)) {
        ready();
        return false;
      }
  
      const follow = this.fsw.options.followSymlinks && !path.includes(STAR) && !path.includes(BRACE_START$1);
      let closer;
      if (stats.isDirectory()) {
        const absPath = sysPath$2.resolve(path);
        const targetPath = follow ? await fsrealpath(path) : path;
        if (this.fsw.closed) return;
        closer = await this._handleDir(wh.watchPath, stats, initialAdd, depth, target, wh, targetPath);
        if (this.fsw.closed) return;
        // preserve this symlink's target path
        if (absPath !== targetPath && targetPath !== undefined) {
          this.fsw._symlinkPaths.set(absPath, targetPath);
        }
      } else if (stats.isSymbolicLink()) {
        const targetPath = follow ? await fsrealpath(path) : path;
        if (this.fsw.closed) return;
        const parent = sysPath$2.dirname(wh.watchPath);
        this.fsw._getWatchedDir(parent).add(wh.watchPath);
        this.fsw._emit(EV_ADD$2, wh.watchPath, stats);
        closer = await this._handleDir(parent, stats, initialAdd, depth, path, wh, targetPath);
        if (this.fsw.closed) return;
  
        // preserve this symlink's target path
        if (targetPath !== undefined) {
          this.fsw._symlinkPaths.set(sysPath$2.resolve(path), targetPath);
        }
      } else {
        closer = this._handleFile(wh.watchPath, stats, initialAdd);
      }
      ready();
  
      this.fsw._addPathCloser(path, closer);
      return false;
  
    } catch (error) {
      if (this.fsw._handleError(error)) {
        ready();
        return path;
      }
    }
  }
  
  }
  
  var nodefsHandler = NodeFsHandler$1;
  
  var fseventsHandler = {exports: {}};
  
  const require$$3 = /*@__PURE__*/rollup.getAugmentedNamespace(rollup.fseventsImporter);
  
  const fs$1 = require$$0$1;
  const sysPath$1 = require$$0$2;
  const { promisify: promisify$1 } = require$$2;
  
  let fsevents;
  try {
    fsevents = require$$3.getFsEvents();
  } catch (error) {
    if (process.env.CHOKIDAR_PRINT_FSEVENTS_REQUIRE_ERROR) console.error(error);
  }
  
  if (fsevents) {
    // TODO: real check
    const mtch = process.version.match(/v(\d+)\.(\d+)/);
    if (mtch && mtch[1] && mtch[2]) {
      const maj = Number.parseInt(mtch[1], 10);
      const min = Number.parseInt(mtch[2], 10);
      if (maj === 8 && min < 16) {
        fsevents = undefined;
      }
    }
  }
  
  const {
    EV_ADD: EV_ADD$1,
    EV_CHANGE: EV_CHANGE$1,
    EV_ADD_DIR: EV_ADD_DIR$1,
    EV_UNLINK: EV_UNLINK$1,
    EV_ERROR: EV_ERROR$1,
    STR_DATA,
    STR_END: STR_END$1,
    FSEVENT_CREATED,
    FSEVENT_MODIFIED,
    FSEVENT_DELETED,
    FSEVENT_MOVED,
    // FSEVENT_CLONED,
    FSEVENT_UNKNOWN,
    FSEVENT_TYPE_FILE,
    FSEVENT_TYPE_DIRECTORY,
    FSEVENT_TYPE_SYMLINK,
  
    ROOT_GLOBSTAR,
    DIR_SUFFIX,
    DOT_SLASH,
    FUNCTION_TYPE: FUNCTION_TYPE$1,
    EMPTY_FN: EMPTY_FN$1,
    IDENTITY_FN
  } = constants;
  
  const Depth = (value) => isNaN(value) ? {} : {depth: value};
  
  const stat$1 = promisify$1(fs$1.stat);
  const lstat = promisify$1(fs$1.lstat);
  const realpath = promisify$1(fs$1.realpath);
  
  const statMethods = { stat: stat$1, lstat };
  
  /**
   * @typedef {String} Path
   */
  
  /**
   * @typedef {Object} FsEventsWatchContainer
   * @property {Set<Function>} listeners
   * @property {Function} rawEmitter
   * @property {{stop: Function}} watcher
   */
  
  // fsevents instance helper functions
  /**
   * Object to hold per-process fsevents instances (may be shared across chokidar FSWatcher instances)
   * @type {Map<Path,FsEventsWatchContainer>}
   */
  const FSEventsWatchers = new Map();
  
  // Threshold of duplicate path prefixes at which to start
  // consolidating going forward
  const consolidateThreshhold = 10;
  
  const wrongEventFlags = new Set([
    69888, 70400, 71424, 72704, 73472, 131328, 131840, 262912
  ]);
  
  /**
   * Instantiates the fsevents interface
   * @param {Path} path path to be watched
   * @param {Function} callback called when fsevents is bound and ready
   * @returns {{stop: Function}} new fsevents instance
   */
  const createFSEventsInstance = (path, callback) => {
    const stop = fsevents.watch(path, callback);
    return {stop};
  };
  
  /**
   * Instantiates the fsevents interface or binds listeners to an existing one covering
   * the same file tree.
   * @param {Path} path           - to be watched
   * @param {Path} realPath       - real path for symlinks
   * @param {Function} listener   - called when fsevents emits events
   * @param {Function} rawEmitter - passes data to listeners of the 'raw' event
   * @returns {Function} closer
   */
  function setFSEventsListener(path, realPath, listener, rawEmitter) {
    let watchPath = sysPath$1.extname(realPath) ? sysPath$1.dirname(realPath) : realPath;
  
    const parentPath = sysPath$1.dirname(watchPath);
    let cont = FSEventsWatchers.get(watchPath);
  
    // If we've accumulated a substantial number of paths that
    // could have been consolidated by watching one directory
    // above the current one, create a watcher on the parent
    // path instead, so that we do consolidate going forward.
    if (couldConsolidate(parentPath)) {
      watchPath = parentPath;
    }
  
    const resolvedPath = sysPath$1.resolve(path);
    const hasSymlink = resolvedPath !== realPath;
  
    const filteredListener = (fullPath, flags, info) => {
      if (hasSymlink) fullPath = fullPath.replace(realPath, resolvedPath);
      if (
        fullPath === resolvedPath ||
        !fullPath.indexOf(resolvedPath + sysPath$1.sep)
      ) listener(fullPath, flags, info);
    };
  
    // check if there is already a watcher on a parent path
    // modifies `watchPath` to the parent path when it finds a match
    let watchedParent = false;
    for (const watchedPath of FSEventsWatchers.keys()) {
      if (realPath.indexOf(sysPath$1.resolve(watchedPath) + sysPath$1.sep) === 0) {
        watchPath = watchedPath;
        cont = FSEventsWatchers.get(watchPath);
        watchedParent = true;
        break;
      }
    }
  
    if (cont || watchedParent) {
      cont.listeners.add(filteredListener);
    } else {
      cont = {
        listeners: new Set([filteredListener]),
        rawEmitter,
        watcher: createFSEventsInstance(watchPath, (fullPath, flags) => {
          if (!cont.listeners.size) return;
          const info = fsevents.getInfo(fullPath, flags);
          cont.listeners.forEach(list => {
            list(fullPath, flags, info);
          });
  
          cont.rawEmitter(info.event, fullPath, info);
        })
      };
      FSEventsWatchers.set(watchPath, cont);
    }
  
    // removes this instance's listeners and closes the underlying fsevents
    // instance if there are no more listeners left
    return () => {
      const lst = cont.listeners;
  
      lst.delete(filteredListener);
      if (!lst.size) {
        FSEventsWatchers.delete(watchPath);
        if (cont.watcher) return cont.watcher.stop().then(() => {
          cont.rawEmitter = cont.watcher = undefined;
          Object.freeze(cont);
        });
      }
    };
  }
  
  // Decide whether or not we should start a new higher-level
  // parent watcher
  const couldConsolidate = (path) => {
    let count = 0;
    for (const watchPath of FSEventsWatchers.keys()) {
      if (watchPath.indexOf(path) === 0) {
        count++;
        if (count >= consolidateThreshhold) {
          return true;
        }
      }
    }
  
    return false;
  };
  
  // returns boolean indicating whether fsevents can be used
  const canUse = () => fsevents && FSEventsWatchers.size < 128;
  
  // determines subdirectory traversal levels from root to path
  const calcDepth = (path, root) => {
    let i = 0;
    while (!path.indexOf(root) && (path = sysPath$1.dirname(path)) !== root) i++;
    return i;
  };
  
  // returns boolean indicating whether the fsevents' event info has the same type
  // as the one returned by fs.stat
  const sameTypes = (info, stats) => (
    info.type === FSEVENT_TYPE_DIRECTORY && stats.isDirectory() ||
    info.type === FSEVENT_TYPE_SYMLINK && stats.isSymbolicLink() ||
    info.type === FSEVENT_TYPE_FILE && stats.isFile()
  );
  
  /**
   * @mixin
   */
  class FsEventsHandler$1 {
  
  /**
   * @param {import('../index').FSWatcher} fsw
   */
  constructor(fsw) {
    this.fsw = fsw;
  }
  checkIgnored(path, stats) {
    const ipaths = this.fsw._ignoredPaths;
    if (this.fsw._isIgnored(path, stats)) {
      ipaths.add(path);
      if (stats && stats.isDirectory()) {
        ipaths.add(path + ROOT_GLOBSTAR);
      }
      return true;
    }
  
    ipaths.delete(path);
    ipaths.delete(path + ROOT_GLOBSTAR);
  }
  
  addOrChange(path, fullPath, realPath, parent, watchedDir, item, info, opts) {
    const event = watchedDir.has(item) ? EV_CHANGE$1 : EV_ADD$1;
    this.handleEvent(event, path, fullPath, realPath, parent, watchedDir, item, info, opts);
  }
  
  async checkExists(path, fullPath, realPath, parent, watchedDir, item, info, opts) {
    try {
      const stats = await stat$1(path);
      if (this.fsw.closed) return;
      if (sameTypes(info, stats)) {
        this.addOrChange(path, fullPath, realPath, parent, watchedDir, item, info, opts);
      } else {
        this.handleEvent(EV_UNLINK$1, path, fullPath, realPath, parent, watchedDir, item, info, opts);
      }
    } catch (error) {
      if (error.code === 'EACCES') {
        this.addOrChange(path, fullPath, realPath, parent, watchedDir, item, info, opts);
      } else {
        this.handleEvent(EV_UNLINK$1, path, fullPath, realPath, parent, watchedDir, item, info, opts);
      }
    }
  }
  
  handleEvent(event, path, fullPath, realPath, parent, watchedDir, item, info, opts) {
    if (this.fsw.closed || this.checkIgnored(path)) return;
  
    if (event === EV_UNLINK$1) {
      const isDirectory = info.type === FSEVENT_TYPE_DIRECTORY;
      // suppress unlink events on never before seen files
      if (isDirectory || watchedDir.has(item)) {
        this.fsw._remove(parent, item, isDirectory);
      }
    } else {
      if (event === EV_ADD$1) {
        // track new directories
        if (info.type === FSEVENT_TYPE_DIRECTORY) this.fsw._getWatchedDir(path);
  
        if (info.type === FSEVENT_TYPE_SYMLINK && opts.followSymlinks) {
          // push symlinks back to the top of the stack to get handled
          const curDepth = opts.depth === undefined ?
            undefined : calcDepth(fullPath, realPath) + 1;
          return this._addToFsEvents(path, false, true, curDepth);
        }
  
        // track new paths
        // (other than symlinks being followed, which will be tracked soon)
        this.fsw._getWatchedDir(parent).add(item);
      }
      /**
       * @type {'add'|'addDir'|'unlink'|'unlinkDir'}
       */
      const eventName = info.type === FSEVENT_TYPE_DIRECTORY ? event + DIR_SUFFIX : event;
      this.fsw._emit(eventName, path);
      if (eventName === EV_ADD_DIR$1) this._addToFsEvents(path, false, true);
    }
  }
  
  /**
   * Handle symlinks encountered during directory scan
   * @param {String} watchPath  - file/dir path to be watched with fsevents
   * @param {String} realPath   - real path (in case of symlinks)
   * @param {Function} transform  - path transformer
   * @param {Function} globFilter - path filter in case a glob pattern was provided
   * @returns {Function} closer for the watcher instance
  */
  _watchWithFsEvents(watchPath, realPath, transform, globFilter) {
    if (this.fsw.closed || this.fsw._isIgnored(watchPath)) return;
    const opts = this.fsw.options;
    const watchCallback = async (fullPath, flags, info) => {
      if (this.fsw.closed) return;
      if (
        opts.depth !== undefined &&
        calcDepth(fullPath, realPath) > opts.depth
      ) return;
      const path = transform(sysPath$1.join(
        watchPath, sysPath$1.relative(watchPath, fullPath)
      ));
      if (globFilter && !globFilter(path)) return;
      // ensure directories are tracked
      const parent = sysPath$1.dirname(path);
      const item = sysPath$1.basename(path);
      const watchedDir = this.fsw._getWatchedDir(
        info.type === FSEVENT_TYPE_DIRECTORY ? path : parent
      );
  
      // correct for wrong events emitted
      if (wrongEventFlags.has(flags) || info.event === FSEVENT_UNKNOWN) {
        if (typeof opts.ignored === FUNCTION_TYPE$1) {
          let stats;
          try {
            stats = await stat$1(path);
          } catch (error) {}
          if (this.fsw.closed) return;
          if (this.checkIgnored(path, stats)) return;
          if (sameTypes(info, stats)) {
            this.addOrChange(path, fullPath, realPath, parent, watchedDir, item, info, opts);
          } else {
            this.handleEvent(EV_UNLINK$1, path, fullPath, realPath, parent, watchedDir, item, info, opts);
          }
        } else {
          this.checkExists(path, fullPath, realPath, parent, watchedDir, item, info, opts);
        }
      } else {
        switch (info.event) {
        case FSEVENT_CREATED:
        case FSEVENT_MODIFIED:
          return this.addOrChange(path, fullPath, realPath, parent, watchedDir, item, info, opts);
        case FSEVENT_DELETED:
        case FSEVENT_MOVED:
          return this.checkExists(path, fullPath, realPath, parent, watchedDir, item, info, opts);
        }
      }
    };
  
    const closer = setFSEventsListener(
      watchPath,
      realPath,
      watchCallback,
      this.fsw._emitRaw
    );
  
    this.fsw._emitReady();
    return closer;
  }
  
  /**
   * Handle symlinks encountered during directory scan
   * @param {String} linkPath path to symlink
   * @param {String} fullPath absolute path to the symlink
   * @param {Function} transform pre-existing path transformer
   * @param {Number} curDepth level of subdirectories traversed to where symlink is
   * @returns {Promise<void>}
   */
  async _handleFsEventsSymlink(linkPath, fullPath, transform, curDepth) {
    // don't follow the same symlink more than once
    if (this.fsw.closed || this.fsw._symlinkPaths.has(fullPath)) return;
  
    this.fsw._symlinkPaths.set(fullPath, true);
    this.fsw._incrReadyCount();
  
    try {
      const linkTarget = await realpath(linkPath);
      if (this.fsw.closed) return;
      if (this.fsw._isIgnored(linkTarget)) {
        return this.fsw._emitReady();
      }
  
      this.fsw._incrReadyCount();
  
      // add the linkTarget for watching with a wrapper for transform
      // that causes emitted paths to incorporate the link's path
      this._addToFsEvents(linkTarget || linkPath, (path) => {
        let aliasedPath = linkPath;
        if (linkTarget && linkTarget !== DOT_SLASH) {
          aliasedPath = path.replace(linkTarget, linkPath);
        } else if (path !== DOT_SLASH) {
          aliasedPath = sysPath$1.join(linkPath, path);
        }
        return transform(aliasedPath);
      }, false, curDepth);
    } catch(error) {
      if (this.fsw._handleError(error)) {
        return this.fsw._emitReady();
      }
    }
  }
  
  /**
   *
   * @param {Path} newPath
   * @param {fs.Stats} stats
   */
  emitAdd(newPath, stats, processPath, opts, forceAdd) {
    const pp = processPath(newPath);
    const isDir = stats.isDirectory();
    const dirObj = this.fsw._getWatchedDir(sysPath$1.dirname(pp));
    const base = sysPath$1.basename(pp);
  
    // ensure empty dirs get tracked
    if (isDir) this.fsw._getWatchedDir(pp);
    if (dirObj.has(base)) return;
    dirObj.add(base);
  
    if (!opts.ignoreInitial || forceAdd === true) {
      this.fsw._emit(isDir ? EV_ADD_DIR$1 : EV_ADD$1, pp, stats);
    }
  }
  
  initWatch(realPath, path, wh, processPath) {
    if (this.fsw.closed) return;
    const closer = this._watchWithFsEvents(
      wh.watchPath,
      sysPath$1.resolve(realPath || wh.watchPath),
      processPath,
      wh.globFilter
    );
    this.fsw._addPathCloser(path, closer);
  }
  
  /**
   * Handle added path with fsevents
   * @param {String} path file/dir path or glob pattern
   * @param {Function|Boolean=} transform converts working path to what the user expects
   * @param {Boolean=} forceAdd ensure add is emitted
   * @param {Number=} priorDepth Level of subdirectories already traversed.
   * @returns {Promise<void>}
   */
  async _addToFsEvents(path, transform, forceAdd, priorDepth) {
    if (this.fsw.closed) {
      return;
    }
    const opts = this.fsw.options;
    const processPath = typeof transform === FUNCTION_TYPE$1 ? transform : IDENTITY_FN;
  
    const wh = this.fsw._getWatchHelpers(path);
  
    // evaluate what is at the path we're being asked to watch
    try {
      const stats = await statMethods[wh.statMethod](wh.watchPath);
      if (this.fsw.closed) return;
      if (this.fsw._isIgnored(wh.watchPath, stats)) {
        throw null;
      }
      if (stats.isDirectory()) {
        // emit addDir unless this is a glob parent
        if (!wh.globFilter) this.emitAdd(processPath(path), stats, processPath, opts, forceAdd);
  
        // don't recurse further if it would exceed depth setting
        if (priorDepth && priorDepth > opts.depth) return;
  
        // scan the contents of the dir
        this.fsw._readdirp(wh.watchPath, {
          fileFilter: entry => wh.filterPath(entry),
          directoryFilter: entry => wh.filterDir(entry),
          ...Depth(opts.depth - (priorDepth || 0))
        }).on(STR_DATA, (entry) => {
          // need to check filterPath on dirs b/c filterDir is less restrictive
          if (this.fsw.closed) {
            return;
          }
          if (entry.stats.isDirectory() && !wh.filterPath(entry)) return;
  
          const joinedPath = sysPath$1.join(wh.watchPath, entry.path);
          const {fullPath} = entry;
  
          if (wh.followSymlinks && entry.stats.isSymbolicLink()) {
            // preserve the current depth here since it can't be derived from
            // real paths past the symlink
            const curDepth = opts.depth === undefined ?
              undefined : calcDepth(joinedPath, sysPath$1.resolve(wh.watchPath)) + 1;
  
            this._handleFsEventsSymlink(joinedPath, fullPath, processPath, curDepth);
          } else {
            this.emitAdd(joinedPath, entry.stats, processPath, opts, forceAdd);
          }
        }).on(EV_ERROR$1, EMPTY_FN$1).on(STR_END$1, () => {
          this.fsw._emitReady();
        });
      } else {
        this.emitAdd(wh.watchPath, stats, processPath, opts, forceAdd);
        this.fsw._emitReady();
      }
    } catch (error) {
      if (!error || this.fsw._handleError(error)) {
        // TODO: Strange thing: "should not choke on an ignored watch path" will be failed without 2 ready calls -__-
        this.fsw._emitReady();
        this.fsw._emitReady();
      }
    }
  
    if (opts.persistent && forceAdd !== true) {
      if (typeof transform === FUNCTION_TYPE$1) {
        // realpath has already been resolved
        this.initWatch(undefined, path, wh, processPath);
      } else {
        let realPath;
        try {
          realPath = await realpath(wh.watchPath);
        } catch (e) {}
        this.initWatch(realPath, path, wh, processPath);
      }
    }
  }
  
  }
  
  fseventsHandler.exports = FsEventsHandler$1;
  fseventsHandler.exports.canUse = canUse;
  
  const { EventEmitter } = require$$0$3;
  const fs = require$$0$1;
  const sysPath = require$$0$2;
  const { promisify } = require$$2;
  const readdirp = readdirp_1;
  const anymatch = anymatch$2.exports.default;
  const globParent = globParent$1;
  const isGlob = isGlob$2;
  const braces = braces_1;
  const normalizePath = normalizePath$2;
  
  const NodeFsHandler = nodefsHandler;
  const FsEventsHandler = fseventsHandler.exports;
  const {
    EV_ALL,
    EV_READY,
    EV_ADD,
    EV_CHANGE,
    EV_UNLINK,
    EV_ADD_DIR,
    EV_UNLINK_DIR,
    EV_RAW,
    EV_ERROR,
  
    STR_CLOSE,
    STR_END,
  
    BACK_SLASH_RE,
    DOUBLE_SLASH_RE,
    SLASH_OR_BACK_SLASH_RE,
    DOT_RE,
    REPLACER_RE,
  
    SLASH,
    SLASH_SLASH,
    BRACE_START,
    BANG,
    ONE_DOT,
    TWO_DOTS,
    GLOBSTAR,
    SLASH_GLOBSTAR,
    ANYMATCH_OPTS,
    STRING_TYPE,
    FUNCTION_TYPE,
    EMPTY_STR,
    EMPTY_FN,
  
    isWindows,
    isMacos,
    isIBMi
  } = constants;
  
  const stat = promisify(fs.stat);
  const readdir = promisify(fs.readdir);
  
  /**
   * @typedef {String} Path
   * @typedef {'all'|'add'|'addDir'|'change'|'unlink'|'unlinkDir'|'raw'|'error'|'ready'} EventName
   * @typedef {'readdir'|'watch'|'add'|'remove'|'change'} ThrottleType
   */
  
  /**
   *
   * @typedef {Object} WatchHelpers
   * @property {Boolean} followSymlinks
   * @property {'stat'|'lstat'} statMethod
   * @property {Path} path
   * @property {Path} watchPath
   * @property {Function} entryPath
   * @property {Boolean} hasGlob
   * @property {Object} globFilter
   * @property {Function} filterPath
   * @property {Function} filterDir
   */
  
  const arrify = (value = []) => Array.isArray(value) ? value : [value];
  const flatten = (list, result = []) => {
    list.forEach(item => {
      if (Array.isArray(item)) {
        flatten(item, result);
      } else {
        result.push(item);
      }
    });
    return result;
  };
  
  const unifyPaths = (paths_) => {
    /**
     * @type {Array<String>}
     */
    const paths = flatten(arrify(paths_));
    if (!paths.every(p => typeof p === STRING_TYPE)) {
      throw new TypeError(`Non-string provided as watch path: ${paths}`);
    }
    return paths.map(normalizePathToUnix);
  };
  
  // If SLASH_SLASH occurs at the beginning of path, it is not replaced
  //     because "//StoragePC/DrivePool/Movies" is a valid network path
  const toUnix = (string) => {
    let str = string.replace(BACK_SLASH_RE, SLASH);
    let prepend = false;
    if (str.startsWith(SLASH_SLASH)) {
      prepend = true;
    }
    while (str.match(DOUBLE_SLASH_RE)) {
      str = str.replace(DOUBLE_SLASH_RE, SLASH);
    }
    if (prepend) {
      str = SLASH + str;
    }
    return str;
  };
  
  // Our version of upath.normalize
  // TODO: this is not equal to path-normalize module - investigate why
  const normalizePathToUnix = (path) => toUnix(sysPath.normalize(toUnix(path)));
  
  const normalizeIgnored = (cwd = EMPTY_STR) => (path) => {
    if (typeof path !== STRING_TYPE) return path;
    return normalizePathToUnix(sysPath.isAbsolute(path) ? path : sysPath.join(cwd, path));
  };
  
  const getAbsolutePath = (path, cwd) => {
    if (sysPath.isAbsolute(path)) {
      return path;
    }
    if (path.startsWith(BANG)) {
      return BANG + sysPath.join(cwd, path.slice(1));
    }
    return sysPath.join(cwd, path);
  };
  
  const undef = (opts, key) => opts[key] === undefined;
  
  /**
   * Directory entry.
   * @property {Path} path
   * @property {Set<Path>} items
   */
  class DirEntry {
    /**
     * @param {Path} dir
     * @param {Function} removeWatcher
     */
    constructor(dir, removeWatcher) {
      this.path = dir;
      this._removeWatcher = removeWatcher;
      /** @type {Set<Path>} */
      this.items = new Set();
    }
  
    add(item) {
      const {items} = this;
      if (!items) return;
      if (item !== ONE_DOT && item !== TWO_DOTS) items.add(item);
    }
  
    async remove(item) {
      const {items} = this;
      if (!items) return;
      items.delete(item);
      if (items.size > 0) return;
  
      const dir = this.path;
      try {
        await readdir(dir);
      } catch (err) {
        if (this._removeWatcher) {
          this._removeWatcher(sysPath.dirname(dir), sysPath.basename(dir));
        }
      }
    }
  
    has(item) {
      const {items} = this;
      if (!items) return;
      return items.has(item);
    }
  
    /**
     * @returns {Array<String>}
     */
    getChildren() {
      const {items} = this;
      if (!items) return;
      return [...items.values()];
    }
  
    dispose() {
      this.items.clear();
      delete this.path;
      delete this._removeWatcher;
      delete this.items;
      Object.freeze(this);
    }
  }
  
  const STAT_METHOD_F = 'stat';
  const STAT_METHOD_L = 'lstat';
  class WatchHelper {
    constructor(path, watchPath, follow, fsw) {
      this.fsw = fsw;
      this.path = path = path.replace(REPLACER_RE, EMPTY_STR);
      this.watchPath = watchPath;
      this.fullWatchPath = sysPath.resolve(watchPath);
      this.hasGlob = watchPath !== path;
      /** @type {object|boolean} */
      if (path === EMPTY_STR) this.hasGlob = false;
      this.globSymlink = this.hasGlob && follow ? undefined : false;
      this.globFilter = this.hasGlob ? anymatch(path, undefined, ANYMATCH_OPTS) : false;
      this.dirParts = this.getDirParts(path);
      this.dirParts.forEach((parts) => {
        if (parts.length > 1) parts.pop();
      });
      this.followSymlinks = follow;
      this.statMethod = follow ? STAT_METHOD_F : STAT_METHOD_L;
    }
  
    checkGlobSymlink(entry) {
      // only need to resolve once
      // first entry should always have entry.parentDir === EMPTY_STR
      if (this.globSymlink === undefined) {
        this.globSymlink = entry.fullParentDir === this.fullWatchPath ?
          false : {realPath: entry.fullParentDir, linkPath: this.fullWatchPath};
      }
  
      if (this.globSymlink) {
        return entry.fullPath.replace(this.globSymlink.realPath, this.globSymlink.linkPath);
      }
  
      return entry.fullPath;
    }
  
    entryPath(entry) {
      return sysPath.join(this.watchPath,
        sysPath.relative(this.watchPath, this.checkGlobSymlink(entry))
      );
    }
  
    filterPath(entry) {
      const {stats} = entry;
      if (stats && stats.isSymbolicLink()) return this.filterDir(entry);
      const resolvedPath = this.entryPath(entry);
      const matchesGlob = this.hasGlob && typeof this.globFilter === FUNCTION_TYPE ?
        this.globFilter(resolvedPath) : true;
      return matchesGlob &&
        this.fsw._isntIgnored(resolvedPath, stats) &&
        this.fsw._hasReadPermissions(stats);
    }
  
    getDirParts(path) {
      if (!this.hasGlob) return [];
      const parts = [];
      const expandedPath = path.includes(BRACE_START) ? braces.expand(path) : [path];
      expandedPath.forEach((path) => {
        parts.push(sysPath.relative(this.watchPath, path).split(SLASH_OR_BACK_SLASH_RE));
      });
      return parts;
    }
  
    filterDir(entry) {
      if (this.hasGlob) {
        const entryParts = this.getDirParts(this.checkGlobSymlink(entry));
        let globstar = false;
        this.unmatchedGlob = !this.dirParts.some((parts) => {
          return parts.every((part, i) => {
            if (part === GLOBSTAR) globstar = true;
            return globstar || !entryParts[0][i] || anymatch(part, entryParts[0][i], ANYMATCH_OPTS);
          });
        });
      }
      return !this.unmatchedGlob && this.fsw._isntIgnored(this.entryPath(entry), entry.stats);
    }
  }
  
  /**
   * Watches files & directories for changes. Emitted events:
   * `add`, `addDir`, `change`, `unlink`, `unlinkDir`, `all`, `error`
   *
   *     new FSWatcher()
   *       .add(directories)
   *       .on('add', path => log('File', path, 'was added'))
   */
  class FSWatcher extends EventEmitter {
  // Not indenting methods for history sake; for now.
  constructor(_opts) {
    super();
  
    const opts = {};
    if (_opts) Object.assign(opts, _opts); // for frozen objects
  
    /** @type {Map<String, DirEntry>} */
    this._watched = new Map();
    /** @type {Map<String, Array>} */
    this._closers = new Map();
    /** @type {Set<String>} */
    this._ignoredPaths = new Set();
  
    /** @type {Map<ThrottleType, Map>} */
    this._throttled = new Map();
  
    /** @type {Map<Path, String|Boolean>} */
    this._symlinkPaths = new Map();
  
    this._streams = new Set();
    this.closed = false;
  
    // Set up default options.
    if (undef(opts, 'persistent')) opts.persistent = true;
    if (undef(opts, 'ignoreInitial')) opts.ignoreInitial = false;
    if (undef(opts, 'ignorePermissionErrors')) opts.ignorePermissionErrors = false;
    if (undef(opts, 'interval')) opts.interval = 100;
    if (undef(opts, 'binaryInterval')) opts.binaryInterval = 300;
    if (undef(opts, 'disableGlobbing')) opts.disableGlobbing = false;
    opts.enableBinaryInterval = opts.binaryInterval !== opts.interval;
  
    // Enable fsevents on OS X when polling isn't explicitly enabled.
    if (undef(opts, 'useFsEvents')) opts.useFsEvents = !opts.usePolling;
  
    // If we can't use fsevents, ensure the options reflect it's disabled.
    const canUseFsEvents = FsEventsHandler.canUse();
    if (!canUseFsEvents) opts.useFsEvents = false;
  
    // Use polling on Mac if not using fsevents.
    // Other platforms use non-polling fs_watch.
    if (undef(opts, 'usePolling') && !opts.useFsEvents) {
      opts.usePolling = isMacos;
    }
  
    // Always default to polling on IBM i because fs.watch() is not available on IBM i.
    if(isIBMi) {
      opts.usePolling = true;
    }
  
    // Global override (useful for end-developers that need to force polling for all
    // instances of chokidar, regardless of usage/dependency depth)
    const envPoll = process.env.CHOKIDAR_USEPOLLING;
    if (envPoll !== undefined) {
      const envLower = envPoll.toLowerCase();
  
      if (envLower === 'false' || envLower === '0') {
        opts.usePolling = false;
      } else if (envLower === 'true' || envLower === '1') {
        opts.usePolling = true;
      } else {
        opts.usePolling = !!envLower;
      }
    }
    const envInterval = process.env.CHOKIDAR_INTERVAL;
    if (envInterval) {
      opts.interval = Number.parseInt(envInterval, 10);
    }
  
    // Editor atomic write normalization enabled by default with fs.watch
    if (undef(opts, 'atomic')) opts.atomic = !opts.usePolling && !opts.useFsEvents;
    if (opts.atomic) this._pendingUnlinks = new Map();
  
    if (undef(opts, 'followSymlinks')) opts.followSymlinks = true;
  
    if (undef(opts, 'awaitWriteFinish')) opts.awaitWriteFinish = false;
    if (opts.awaitWriteFinish === true) opts.awaitWriteFinish = {};
    const awf = opts.awaitWriteFinish;
    if (awf) {
      if (!awf.stabilityThreshold) awf.stabilityThreshold = 2000;
      if (!awf.pollInterval) awf.pollInterval = 100;
      this._pendingWrites = new Map();
    }
    if (opts.ignored) opts.ignored = arrify(opts.ignored);
  
    let readyCalls = 0;
    this._emitReady = () => {
      readyCalls++;
      if (readyCalls >= this._readyCount) {
        this._emitReady = EMPTY_FN;
        this._readyEmitted = true;
        // use process.nextTick to allow time for listener to be bound
        process.nextTick(() => this.emit(EV_READY));
      }
    };
    this._emitRaw = (...args) => this.emit(EV_RAW, ...args);
    this._readyEmitted = false;
    this.options = opts;
  
    // Initialize with proper watcher.
    if (opts.useFsEvents) {
      this._fsEventsHandler = new FsEventsHandler(this);
    } else {
      this._nodeFsHandler = new NodeFsHandler(this);
    }
  
    // You’re frozen when your heart’s not open.
    Object.freeze(opts);
  }
  
  // Public methods
  
  /**
   * Adds paths to be watched on an existing FSWatcher instance
   * @param {Path|Array<Path>} paths_
   * @param {String=} _origAdd private; for handling non-existent paths to be watched
   * @param {Boolean=} _internal private; indicates a non-user add
   * @returns {FSWatcher} for chaining
   */
  add(paths_, _origAdd, _internal) {
    const {cwd, disableGlobbing} = this.options;
    this.closed = false;
    let paths = unifyPaths(paths_);
    if (cwd) {
      paths = paths.map((path) => {
        const absPath = getAbsolutePath(path, cwd);
  
        // Check `path` instead of `absPath` because the cwd portion can't be a glob
        if (disableGlobbing || !isGlob(path)) {
          return absPath;
        }
        return normalizePath(absPath);
      });
    }
  
    // set aside negated glob strings
    paths = paths.filter((path) => {
      if (path.startsWith(BANG)) {
        this._ignoredPaths.add(path.slice(1));
        return false;
      }
  
      // if a path is being added that was previously ignored, stop ignoring it
      this._ignoredPaths.delete(path);
      this._ignoredPaths.delete(path + SLASH_GLOBSTAR);
  
      // reset the cached userIgnored anymatch fn
      // to make ignoredPaths changes effective
      this._userIgnored = undefined;
  
      return true;
    });
  
    if (this.options.useFsEvents && this._fsEventsHandler) {
      if (!this._readyCount) this._readyCount = paths.length;
      if (this.options.persistent) this._readyCount *= 2;
      paths.forEach((path) => this._fsEventsHandler._addToFsEvents(path));
    } else {
      if (!this._readyCount) this._readyCount = 0;
      this._readyCount += paths.length;
      Promise.all(
        paths.map(async path => {
          const res = await this._nodeFsHandler._addToNodeFs(path, !_internal, 0, 0, _origAdd);
          if (res) this._emitReady();
          return res;
        })
      ).then(results => {
        if (this.closed) return;
        results.filter(item => item).forEach(item => {
          this.add(sysPath.dirname(item), sysPath.basename(_origAdd || item));
        });
      });
    }
  
    return this;
  }
  
  /**
   * Close watchers or start ignoring events from specified paths.
   * @param {Path|Array<Path>} paths_ - string or array of strings, file/directory paths and/or globs
   * @returns {FSWatcher} for chaining
  */
  unwatch(paths_) {
    if (this.closed) return this;
    const paths = unifyPaths(paths_);
    const {cwd} = this.options;
  
    paths.forEach((path) => {
      // convert to absolute path unless relative path already matches
      if (!sysPath.isAbsolute(path) && !this._closers.has(path)) {
        if (cwd) path = sysPath.join(cwd, path);
        path = sysPath.resolve(path);
      }
  
      this._closePath(path);
  
      this._ignoredPaths.add(path);
      if (this._watched.has(path)) {
        this._ignoredPaths.add(path + SLASH_GLOBSTAR);
      }
  
      // reset the cached userIgnored anymatch fn
      // to make ignoredPaths changes effective
      this._userIgnored = undefined;
    });
  
    return this;
  }
  
  /**
   * Close watchers and remove all listeners from watched paths.
   * @returns {Promise<void>}.
  */
  close() {
    if (this.closed) return this._closePromise;
    this.closed = true;
  
    // Memory management.
    this.removeAllListeners();
    const closers = [];
    this._closers.forEach(closerList => closerList.forEach(closer => {
      const promise = closer();
      if (promise instanceof Promise) closers.push(promise);
    }));
    this._streams.forEach(stream => stream.destroy());
    this._userIgnored = undefined;
    this._readyCount = 0;
    this._readyEmitted = false;
    this._watched.forEach(dirent => dirent.dispose());
    ['closers', 'watched', 'streams', 'symlinkPaths', 'throttled'].forEach(key => {
      this[`_${key}`].clear();
    });
  
    this._closePromise = closers.length ? Promise.all(closers).then(() => undefined) : Promise.resolve();
    return this._closePromise;
  }
  
  /**
   * Expose list of watched paths
   * @returns {Object} for chaining
  */
  getWatched() {
    const watchList = {};
    this._watched.forEach((entry, dir) => {
      const key = this.options.cwd ? sysPath.relative(this.options.cwd, dir) : dir;
      watchList[key || ONE_DOT] = entry.getChildren().sort();
    });
    return watchList;
  }
  
  emitWithAll(event, args) {
    this.emit(...args);
    if (event !== EV_ERROR) this.emit(EV_ALL, ...args);
  }
  
  // Common helpers
  // --------------
  
  /**
   * Normalize and emit events.
   * Calling _emit DOES NOT MEAN emit() would be called!
   * @param {EventName} event Type of event
   * @param {Path} path File or directory path
   * @param {*=} val1 arguments to be passed with event
   * @param {*=} val2
   * @param {*=} val3
   * @returns the error if defined, otherwise the value of the FSWatcher instance's `closed` flag
   */
  async _emit(event, path, val1, val2, val3) {
    if (this.closed) return;
  
    const opts = this.options;
    if (isWindows) path = sysPath.normalize(path);
    if (opts.cwd) path = sysPath.relative(opts.cwd, path);
    /** @type Array<any> */
    const args = [event, path];
    if (val3 !== undefined) args.push(val1, val2, val3);
    else if (val2 !== undefined) args.push(val1, val2);
    else if (val1 !== undefined) args.push(val1);
  
    const awf = opts.awaitWriteFinish;
    let pw;
    if (awf && (pw = this._pendingWrites.get(path))) {
      pw.lastChange = new Date();
      return this;
    }
  
    if (opts.atomic) {
      if (event === EV_UNLINK) {
        this._pendingUnlinks.set(path, args);
        setTimeout(() => {
          this._pendingUnlinks.forEach((entry, path) => {
            this.emit(...entry);
            this.emit(EV_ALL, ...entry);
            this._pendingUnlinks.delete(path);
          });
        }, typeof opts.atomic === 'number' ? opts.atomic : 100);
        return this;
      }
      if (event === EV_ADD && this._pendingUnlinks.has(path)) {
        event = args[0] = EV_CHANGE;
        this._pendingUnlinks.delete(path);
      }
    }
  
    if (awf && (event === EV_ADD || event === EV_CHANGE) && this._readyEmitted) {
      const awfEmit = (err, stats) => {
        if (err) {
          event = args[0] = EV_ERROR;
          args[1] = err;
          this.emitWithAll(event, args);
        } else if (stats) {
          // if stats doesn't exist the file must have been deleted
          if (args.length > 2) {
            args[2] = stats;
          } else {
            args.push(stats);
          }
          this.emitWithAll(event, args);
        }
      };
  
      this._awaitWriteFinish(path, awf.stabilityThreshold, event, awfEmit);
      return this;
    }
  
    if (event === EV_CHANGE) {
      const isThrottled = !this._throttle(EV_CHANGE, path, 50);
      if (isThrottled) return this;
    }
  
    if (opts.alwaysStat && val1 === undefined &&
      (event === EV_ADD || event === EV_ADD_DIR || event === EV_CHANGE)
    ) {
      const fullPath = opts.cwd ? sysPath.join(opts.cwd, path) : path;
      let stats;
      try {
        stats = await stat(fullPath);
      } catch (err) {}
      // Suppress event when fs_stat fails, to avoid sending undefined 'stat'
      if (!stats || this.closed) return;
      args.push(stats);
    }
    this.emitWithAll(event, args);
  
    return this;
  }
  
  /**
   * Common handler for errors
   * @param {Error} error
   * @returns {Error|Boolean} The error if defined, otherwise the value of the FSWatcher instance's `closed` flag
   */
  _handleError(error) {
    const code = error && error.code;
    if (error && code !== 'ENOENT' && code !== 'ENOTDIR' &&
      (!this.options.ignorePermissionErrors || (code !== 'EPERM' && code !== 'EACCES'))
    ) {
      this.emit(EV_ERROR, error);
    }
    return error || this.closed;
  }
  
  /**
   * Helper utility for throttling
   * @param {ThrottleType} actionType type being throttled
   * @param {Path} path being acted upon
   * @param {Number} timeout duration of time to suppress duplicate actions
   * @returns {Object|false} tracking object or false if action should be suppressed
   */
  _throttle(actionType, path, timeout) {
    if (!this._throttled.has(actionType)) {
      this._throttled.set(actionType, new Map());
    }
  
    /** @type {Map<Path, Object>} */
    const action = this._throttled.get(actionType);
    /** @type {Object} */
    const actionPath = action.get(path);
  
    if (actionPath) {
      actionPath.count++;
      return false;
    }
  
    let timeoutObject;
    const clear = () => {
      const item = action.get(path);
      const count = item ? item.count : 0;
      action.delete(path);
      clearTimeout(timeoutObject);
      if (item) clearTimeout(item.timeoutObject);
      return count;
    };
    timeoutObject = setTimeout(clear, timeout);
    const thr = {timeoutObject, clear, count: 0};
    action.set(path, thr);
    return thr;
  }
  
  _incrReadyCount() {
    return this._readyCount++;
  }
  
  /**
   * Awaits write operation to finish.
   * Polls a newly created file for size variations. When files size does not change for 'threshold' milliseconds calls callback.
   * @param {Path} path being acted upon
   * @param {Number} threshold Time in milliseconds a file size must be fixed before acknowledging write OP is finished
   * @param {EventName} event
   * @param {Function} awfEmit Callback to be called when ready for event to be emitted.
   */
  _awaitWriteFinish(path, threshold, event, awfEmit) {
    let timeoutHandler;
  
    let fullPath = path;
    if (this.options.cwd && !sysPath.isAbsolute(path)) {
      fullPath = sysPath.join(this.options.cwd, path);
    }
  
    const now = new Date();
  
    const awaitWriteFinish = (prevStat) => {
      fs.stat(fullPath, (err, curStat) => {
        if (err || !this._pendingWrites.has(path)) {
          if (err && err.code !== 'ENOENT') awfEmit(err);
          return;
        }
  
        const now = Number(new Date());
  
        if (prevStat && curStat.size !== prevStat.size) {
          this._pendingWrites.get(path).lastChange = now;
        }
        const pw = this._pendingWrites.get(path);
        const df = now - pw.lastChange;
  
        if (df >= threshold) {
          this._pendingWrites.delete(path);
          awfEmit(undefined, curStat);
        } else {
          timeoutHandler = setTimeout(
            awaitWriteFinish,
            this.options.awaitWriteFinish.pollInterval,
            curStat
          );
        }
      });
    };
  
    if (!this._pendingWrites.has(path)) {
      this._pendingWrites.set(path, {
        lastChange: now,
        cancelWait: () => {
          this._pendingWrites.delete(path);
          clearTimeout(timeoutHandler);
          return event;
        }
      });
      timeoutHandler = setTimeout(
        awaitWriteFinish,
        this.options.awaitWriteFinish.pollInterval
      );
    }
  }
  
  _getGlobIgnored() {
    return [...this._ignoredPaths.values()];
  }
  
  /**
   * Determines whether user has asked to ignore this path.
   * @param {Path} path filepath or dir
   * @param {fs.Stats=} stats result of fs.stat
   * @returns {Boolean}
   */
  _isIgnored(path, stats) {
    if (this.options.atomic && DOT_RE.test(path)) return true;
    if (!this._userIgnored) {
      const {cwd} = this.options;
      const ign = this.options.ignored;
  
      const ignored = ign && ign.map(normalizeIgnored(cwd));
      const paths = arrify(ignored)
        .filter((path) => typeof path === STRING_TYPE && !isGlob(path))
        .map((path) => path + SLASH_GLOBSTAR);
      const list = this._getGlobIgnored().map(normalizeIgnored(cwd)).concat(ignored, paths);
      this._userIgnored = anymatch(list, undefined, ANYMATCH_OPTS);
    }
  
    return this._userIgnored([path, stats]);
  }
  
  _isntIgnored(path, stat) {
    return !this._isIgnored(path, stat);
  }
  
  /**
   * Provides a set of common helpers and properties relating to symlink and glob handling.
   * @param {Path} path file, directory, or glob pattern being watched
   * @param {Number=} depth at any depth > 0, this isn't a glob
   * @returns {WatchHelper} object containing helpers for this path
   */
  _getWatchHelpers(path, depth) {
    const watchPath = depth || this.options.disableGlobbing || !isGlob(path) ? path : globParent(path);
    const follow = this.options.followSymlinks;
  
    return new WatchHelper(path, watchPath, follow, this);
  }
  
  // Directory helpers
  // -----------------
  
  /**
   * Provides directory tracking objects
   * @param {String} directory path of the directory
   * @returns {DirEntry} the directory's tracking object
   */
  _getWatchedDir(directory) {
    if (!this._boundRemove) this._boundRemove = this._remove.bind(this);
    const dir = sysPath.resolve(directory);
    if (!this._watched.has(dir)) this._watched.set(dir, new DirEntry(dir, this._boundRemove));
    return this._watched.get(dir);
  }
  
  // File helpers
  // ------------
  
  /**
   * Check for read permissions.
   * Based on this answer on SO: https://stackoverflow.com/a/11781404/1358405
   * @param {fs.Stats} stats - object, result of fs_stat
   * @returns {Boolean} indicates whether the file can be read
  */
  _hasReadPermissions(stats) {
    if (this.options.ignorePermissionErrors) return true;
  
    // stats.mode may be bigint
    const md = stats && Number.parseInt(stats.mode, 10);
    const st = md & 0o777;
    const it = Number.parseInt(st.toString(8)[0], 10);
    return Boolean(4 & it);
  }
  
  /**
   * Handles emitting unlink events for
   * files and directories, and via recursion, for
   * files and directories within directories that are unlinked
   * @param {String} directory within which the following item is located
   * @param {String} item      base path of item/directory
   * @returns {void}
  */
  _remove(directory, item, isDirectory) {
    // if what is being deleted is a directory, get that directory's paths
    // for recursive deleting and cleaning of watched object
    // if it is not a directory, nestedDirectoryChildren will be empty array
    const path = sysPath.join(directory, item);
    const fullPath = sysPath.resolve(path);
    isDirectory = isDirectory != null
      ? isDirectory
      : this._watched.has(path) || this._watched.has(fullPath);
  
    // prevent duplicate handling in case of arriving here nearly simultaneously
    // via multiple paths (such as _handleFile and _handleDir)
    if (!this._throttle('remove', path, 100)) return;
  
    // if the only watched file is removed, watch for its return
    if (!isDirectory && !this.options.useFsEvents && this._watched.size === 1) {
      this.add(directory, item, true);
    }
  
    // This will create a new entry in the watched object in either case
    // so we got to do the directory check beforehand
    const wp = this._getWatchedDir(path);
    const nestedDirectoryChildren = wp.getChildren();
  
    // Recursively remove children directories / files.
    nestedDirectoryChildren.forEach(nested => this._remove(path, nested));
  
    // Check if item was on the watched list and remove it
    const parent = this._getWatchedDir(directory);
    const wasTracked = parent.has(item);
    parent.remove(item);
  
    // Fixes issue #1042 -> Relative paths were detected and added as symlinks
    // (https://github.com/paulmillr/chokidar/blob/e1753ddbc9571bdc33b4a4af172d52cb6e611c10/lib/nodefs-handler.js#L612),
    // but never removed from the map in case the path was deleted.
    // This leads to an incorrect state if the path was recreated:
    // https://github.com/paulmillr/chokidar/blob/e1753ddbc9571bdc33b4a4af172d52cb6e611c10/lib/nodefs-handler.js#L553
    if (this._symlinkPaths.has(fullPath)) {
      this._symlinkPaths.delete(fullPath);
    }
  
    // If we wait for this file to be fully written, cancel the wait.
    let relPath = path;
    if (this.options.cwd) relPath = sysPath.relative(this.options.cwd, path);
    if (this.options.awaitWriteFinish && this._pendingWrites.has(relPath)) {
      const event = this._pendingWrites.get(relPath).cancelWait();
      if (event === EV_ADD) return;
    }
  
    // The Entry will either be a directory that just got removed
    // or a bogus entry to a file, in either case we have to remove it
    this._watched.delete(path);
    this._watched.delete(fullPath);
    const eventName = isDirectory ? EV_UNLINK_DIR : EV_UNLINK;
    if (wasTracked && !this._isIgnored(path)) this._emit(eventName, path);
  
    // Avoid conflicts if we later create another file with the same name
    if (!this.options.useFsEvents) {
      this._closePath(path);
    }
  }
  
  /**
   * Closes all watchers for a path
   * @param {Path} path
   */
  _closePath(path) {
    this._closeFile(path);
    const dir = sysPath.dirname(path);
    this._getWatchedDir(dir).remove(sysPath.basename(path));
  }
  
  /**
   * Closes only file-specific watchers
   * @param {Path} path
   */
  _closeFile(path) {
    const closers = this._closers.get(path);
    if (!closers) return;
    closers.forEach(closer => closer());
    this._closers.delete(path);
  }
  
  /**
   *
   * @param {Path} path
   * @param {Function} closer
   */
  _addPathCloser(path, closer) {
    if (!closer) return;
    let list = this._closers.get(path);
    if (!list) {
      list = [];
      this._closers.set(path, list);
    }
    list.push(closer);
  }
  
  _readdirp(root, opts) {
    if (this.closed) return;
    const options = {type: EV_ALL, alwaysStat: true, lstat: true, ...opts};
    let stream = readdirp(root, options);
    this._streams.add(stream);
    stream.once(STR_CLOSE, () => {
      stream = undefined;
    });
    stream.once(STR_END, () => {
      if (stream) {
        this._streams.delete(stream);
        stream = undefined;
      }
    });
    return stream;
  }
  
  }
  
  // Export FSWatcher class
  chokidar.FSWatcher = FSWatcher;
  
  /**
   * Instantiates watcher with paths to be tracked.
   * @param {String|Array<String>} paths file/directory paths and/or globs
   * @param {Object=} options chokidar opts
   * @returns an instance of FSWatcher for chaining.
   */
  const watch = (paths, options) => {
    const watcher = new FSWatcher(options);
    watcher.add(paths);
    return watcher;
  };
  
  chokidar.watch = watch;
  
  exports.chokidar = chokidar;
  //# sourceMappingURL=index.js.map
  