text: 'use strict'
  
  function _typeof(obj) {
    if (typeof Symbol === 'function' && typeof Symbol.iterator === 'symbol') {
      _typeof = function _typeof(obj) {
        return typeof obj
      }
    } else {
      _typeof = function _typeof(obj) {
        return obj &&
          typeof Symbol === 'function' &&
          obj.constructor === Symbol &&
          obj !== Symbol.prototype
          ? 'symbol'
          : typeof obj
      }
    }
    return _typeof(obj)
  }
  
  module.exports =
    /******/
    (function () {
      // webpackBootstrap
  
      /******/
      var __webpack_modules__ = {
        /***/
        650:
          /***/
          function _(module) {
            var toString = Object.prototype.toString
            var isModern =
              typeof Buffer.alloc === 'function' &&
              typeof Buffer.allocUnsafe === 'function' &&
              typeof Buffer.from === 'function'
  
            function isArrayBuffer(input) {
              return toString.call(input).slice(8, -1) === 'ArrayBuffer'
            }
  
            function fromArrayBuffer(obj, byteOffset, length) {
              byteOffset >>>= 0
              var maxLength = obj.byteLength - byteOffset
  
              if (maxLength < 0) {
                throw new RangeError("'offset' is out of bounds")
              }
  
              if (length === undefined) {
                length = maxLength
              } else {
                length >>>= 0
  
                if (length > maxLength) {
                  throw new RangeError("'length' is out of bounds")
                }
              }
  
              return isModern
                ? Buffer.from(obj.slice(byteOffset, byteOffset + length))
                : new Buffer(
                    new Uint8Array(obj.slice(byteOffset, byteOffset + length))
                  )
            }
  
            function fromString(string, encoding) {
              if (typeof encoding !== 'string' || encoding === '') {
                encoding = 'utf8'
              }
  
              if (!Buffer.isEncoding(encoding)) {
                throw new TypeError('"encoding" must be a valid string encoding')
              }
  
              return isModern
                ? Buffer.from(string, encoding)
                : new Buffer(string, encoding)
            }
  
            function bufferFrom(value, encodingOrOffset, length) {
              if (typeof value === 'number') {
                throw new TypeError('"value" argument must not be a number')
              }
  
              if (isArrayBuffer(value)) {
                return fromArrayBuffer(value, encodingOrOffset, length)
              }
  
              if (typeof value === 'string') {
                return fromString(value, encodingOrOffset)
              }
  
              return isModern ? Buffer.from(value) : new Buffer(value)
            }
  
            module.exports = bufferFrom
            /***/
          },
  
        /***/
        645:
          /***/
          function _(
            __unused_webpack_module,
            __unused_webpack_exports,
            __webpack_require__
          ) {
            __webpack_require__(284).install()
            /***/
          },
  
        /***/
        284:
          /***/
          function _(__unused_webpack_module, exports, __webpack_require__) {
            var SourceMapConsumer = __webpack_require__(596).SourceMapConsumer
  
            var path = __webpack_require__(622)
  
            var fs
  
            try {
              fs = __webpack_require__(747)
  
              if (!fs.existsSync || !fs.readFileSync) {
                // fs doesn't have all methods we need
                fs = null
              }
            } catch (err) {
              /* nop */
            }
  
            var bufferFrom = __webpack_require__(650) // Only install once if called multiple times
  
            var errorFormatterInstalled = false
            var uncaughtShimInstalled = false // If true, the caches are reset before a stack trace formatting operation
  
            var emptyCacheBetweenOperations = false // Supports {browser, node, auto}
  
            var environment = 'auto' // Maps a file path to a string containing the file contents
  
            var fileContentsCache = {} // Maps a file path to a source map for that file
  
            var sourceMapCache = {} // Regex for detecting source maps
  
            var reSourceMap = /^data:application\/json[^,]+base64,/ // Priority list of retrieve handlers
  
            var retrieveFileHandlers = []
            var retrieveMapHandlers = []
  
            function isInBrowser() {
              if (environment === 'browser') return true
              if (environment === 'node') return false
              return (
                typeof window !== 'undefined' &&
                typeof XMLHttpRequest === 'function' &&
                !(
                  window.require &&
                  window.module &&
                  window.process &&
                  window.process.type === 'renderer'
                )
              )
            }
  
            function hasGlobalProcessEventEmitter() {
              return (
                (typeof process === 'undefined'
                  ? 'undefined'
                  : _typeof(process)) === 'object' &&
                process !== null &&
                typeof process.on === 'function'
              )
            }
  
            function handlerExec(list) {
              return function (arg) {
                for (var i = 0; i < list.length; i++) {
                  var ret = list[i](arg)
  
                  if (ret) {
                    return ret
                  }
                }
  
                return null
              }
            }
  
            var retrieveFile = handlerExec(retrieveFileHandlers)
            retrieveFileHandlers.push(function (path) {
              // Trim the path to make sure there is no extra whitespace.
              path = path.trim()
  
              if (/^file:/.test(path)) {
                // existsSync/readFileSync can't handle file protocol, but once stripped, it works
                path = path.replace(
                  /file:\/\/\/(\w:)?/,
                  function (protocol, drive) {
                    return drive
                      ? '' // file:///C:/dir/file -> C:/dir/file
                      : '/' // file:///root-dir/file -> /root-dir/file
                  }
                )
              }
  
              if (path in fileContentsCache) {
                return fileContentsCache[path]
              }
  
              var contents = ''
  
              try {
                if (!fs) {
                  // Use SJAX if we are in the browser
                  var xhr = new XMLHttpRequest()
                  xhr.open(
                    'GET',
                    path,
                    /** async */
                    false
                  )
                  xhr.send(null)
  
                  if (xhr.readyState === 4 && xhr.status === 200) {
                    contents = xhr.responseText
                  }
                } else if (fs.existsSync(path)) {
                  // Otherwise, use the filesystem
                  contents = fs.readFileSync(path, 'utf8')
                }
              } catch (er) {
                /* ignore any errors */
              }
  
              return (fileContentsCache[path] = contents)
            }) // Support URLs relative to a directory, but be careful about a protocol prefix
            // in case we are in the browser (i.e. directories may start with "http://" or "file:///")
  
            function supportRelativeURL(file, url) {
              if (!file) return url
              var dir = path.dirname(file)
              var match = /^\w+:\/\/[^\/]*/.exec(dir)
              var protocol = match ? match[0] : ''
              var startPath = dir.slice(protocol.length)
  
              if (protocol && /^\/\w\:/.test(startPath)) {
                // handle file:///C:/ paths
                protocol += '/'
                return (
                  protocol +
                  path
                    .resolve(dir.slice(protocol.length), url)
                    .replace(/\\/g, '/')
                )
              }
  
              return protocol + path.resolve(dir.slice(protocol.length), url)
            }
  
            function retrieveSourceMapURL(source) {
              var fileData
  
              if (isInBrowser()) {
                try {
                  var xhr = new XMLHttpRequest()
                  xhr.open('GET', source, false)
                  xhr.send(null)
                  fileData = xhr.readyState === 4 ? xhr.responseText : null // Support providing a sourceMappingURL via the SourceMap header
  
                  var sourceMapHeader =
                    xhr.getResponseHeader('SourceMap') ||
                    xhr.getResponseHeader('X-SourceMap')
  
                  if (sourceMapHeader) {
                    return sourceMapHeader
                  }
                } catch (e) {}
              } // Get the URL of the source map
  
              fileData = retrieveFile(source)
              var re = /(?:\/\/[@#][ \t]+sourceMappingURL=([^\s'"]+?)[ \t]*$)|(?:\/\*[@#][ \t]+sourceMappingURL=([^\*]+?)[ \t]*(?:\*\/)[ \t]*$)/gm // Keep executing the search to find the *last* sourceMappingURL to avoid
              // picking up sourceMappingURLs from comments, strings, etc.
  
              var lastMatch, match
  
              while ((match = re.exec(fileData))) {
                lastMatch = match
              }
  
              if (!lastMatch) return null
              return lastMatch[1]
            } // Can be overridden by the retrieveSourceMap option to install. Takes a
  
            // generated source filename; returns a {map, optional url} object, or null if
            // there is no source map.  The map field may be either a string or the parsed
            // JSON object (ie, it must be a valid argument to the SourceMapConsumer
            // constructor).
  
            var retrieveSourceMap = handlerExec(retrieveMapHandlers)
            retrieveMapHandlers.push(function (source) {
              var sourceMappingURL = retrieveSourceMapURL(source)
              if (!sourceMappingURL) return null // Read the contents of the source map
  
              var sourceMapData
  
              if (reSourceMap.test(sourceMappingURL)) {
                // Support source map URL as a data url
                var rawData = sourceMappingURL.slice(
                  sourceMappingURL.indexOf(',') + 1
                )
                sourceMapData = bufferFrom(rawData, 'base64').toString()
                sourceMappingURL = source
              } else {
                // Support source map URLs relative to the source URL
                sourceMappingURL = supportRelativeURL(source, sourceMappingURL)
                sourceMapData = retrieveFile(sourceMappingURL)
              }
  
              if (!sourceMapData) {
                return null
              }
  
              return {
                url: sourceMappingURL,
                map: sourceMapData,
              }
            })
  
            function mapSourcePosition(position) {
              var sourceMap = sourceMapCache[position.source]
  
              if (!sourceMap) {
                // Call the (overrideable) retrieveSourceMap function to get the source map.
                var urlAndMap = retrieveSourceMap(position.source)
  
                if (urlAndMap) {
                  sourceMap = sourceMapCache[position.source] = {
                    url: urlAndMap.url,
                    map: new SourceMapConsumer(urlAndMap.map),
                  } // Load all sources stored inline with the source map into the file cache
                  // to pretend like they are already loaded. They may not exist on disk.
  
                  if (sourceMap.map.sourcesContent) {
                    sourceMap.map.sources.forEach(function (source, i) {
                      var contents = sourceMap.map.sourcesContent[i]
  
                      if (contents) {
                        var url = supportRelativeURL(sourceMap.url, source)
                        fileContentsCache[url] = contents
                      }
                    })
                  }
                } else {
                  sourceMap = sourceMapCache[position.source] = {
                    url: null,
                    map: null,
                  }
                }
              } // Resolve the source URL relative to the URL of the source map
  
              if (sourceMap && sourceMap.map) {
                var originalPosition = sourceMap.map.originalPositionFor(position) // Only return the original position if a matching line was found. If no
                // matching line is found then we return position instead, which will cause
                // the stack trace to print the path and line for the compiled file. It is
                // better to give a precise location in the compiled file than a vague
                // location in the original file.
  
                if (originalPosition.source !== null) {
                  originalPosition.source = supportRelativeURL(
                    sourceMap.url,
                    originalPosition.source
                  )
                  return originalPosition
                }
              }
  
              return position
            } // Parses code generated by FormatEvalOrigin(), a function inside V8:
            // https://code.google.com/p/v8/source/browse/trunk/src/messages.js
  
            function mapEvalOrigin(origin) {
              // Most eval() calls are in this format
              var match = /^eval at ([^(]+) \((.+):(\d+):(\d+)\)$/.exec(origin)
  
              if (match) {
                var position = mapSourcePosition({
                  source: match[2],
                  line: +match[3],
                  column: match[4] - 1,
                })
                return (
                  'eval at ' +
                  match[1] +
                  ' (' +
                  position.source +
                  ':' +
                  position.line +
                  ':' +
                  (position.column + 1) +
                  ')'
                )
              } // Parse nested eval() calls using recursion
  
              match = /^eval at ([^(]+) \((.+)\)$/.exec(origin)
  
              if (match) {
                return (
                  'eval at ' + match[1] + ' (' + mapEvalOrigin(match[2]) + ')'
                )
              } // Make sure we still return useful information if we didn't find anything
  
              return origin
            } // This is copied almost verbatim from the V8 source code at
            // https://code.google.com/p/v8/source/browse/trunk/src/messages.js. The
            // implementation of wrapCallSite() used to just forward to the actual source
            // code of CallSite.prototype.toString but unfortunately a new release of V8
            // did something to the prototype chain and broke the shim. The only fix I
            // could find was copy/paste.
  
            function CallSiteToString() {
              var fileName
              var fileLocation = ''
  
              if (this.isNative()) {
                fileLocation = 'native'
              } else {
                fileName = this.getScriptNameOrSourceURL()
  
                if (!fileName && this.isEval()) {
                  fileLocation = this.getEvalOrigin()
                  fileLocation += ', ' // Expecting source position to follow.
                }
  
                if (fileName) {
                  fileLocation += fileName
                } else {
                  // Source code does not originate from a file and is not native, but we
                  // can still get the source position inside the source string, e.g. in
                  // an eval string.
                  fileLocation += '<anonymous>'
                }
  
                var lineNumber = this.getLineNumber()
  
                if (lineNumber != null) {
                  fileLocation += ':' + lineNumber
                  var columnNumber = this.getColumnNumber()
  
                  if (columnNumber) {
                    fileLocation += ':' + columnNumber
                  }
                }
              }
  
              var line = ''
              var functionName = this.getFunctionName()
              var addSuffix = true
              var isConstructor = this.isConstructor()
              var isMethodCall = !(this.isToplevel() || isConstructor)
  
              if (isMethodCall) {
                var typeName = this.getTypeName() // Fixes shim to be backward compatable with Node v0 to v4
  
                if (typeName === '[object Object]') {
                  typeName = 'null'
                }
  
                var methodName = this.getMethodName()
  
                if (functionName) {
                  if (typeName && functionName.indexOf(typeName) != 0) {
                    line += typeName + '.'
                  }
  
                  line += functionName
  
                  if (
                    methodName &&
                    functionName.indexOf('.' + methodName) !=
                      functionName.length - methodName.length - 1
                  ) {
                    line += ' [as ' + methodName + ']'
                  }
                } else {
                  line += typeName + '.' + (methodName || '<anonymous>')
                }
              } else if (isConstructor) {
                line += 'new ' + (functionName || '<anonymous>')
              } else if (functionName) {
                line += functionName
              } else {
                line += fileLocation
                addSuffix = false
              }
  
              if (addSuffix) {
                line += ' (' + fileLocation + ')'
              }
  
              return line
            }
  
            function cloneCallSite(frame) {
              var object = {}
              Object.getOwnPropertyNames(Object.getPrototypeOf(frame)).forEach(
                function (name) {
                  object[name] = /^(?:is|get)/.test(name)
                    ? function () {
                        return frame[name].call(frame)
                      }
                    : frame[name]
                }
              )
              object.toString = CallSiteToString
              return object
            }
  
            function wrapCallSite(frame) {
              if (frame.isNative()) {
                return frame
              } // Most call sites will return the source file from getFileName(), but code
              // passed to eval() ending in "//# sourceURL=..." will return the source file
              // from getScriptNameOrSourceURL() instead
  
              var source = frame.getFileName() || frame.getScriptNameOrSourceURL()
  
              if (source) {
                var line = frame.getLineNumber()
                var column = frame.getColumnNumber() - 1 // Fix position in Node where some (internal) code is prepended.
                // See https://github.com/evanw/node-source-map-support/issues/36
  
                var headerLength = 62
  
                if (
                  line === 1 &&
                  column > headerLength &&
                  !isInBrowser() &&
                  !frame.isEval()
                ) {
                  column -= headerLength
                }
  
                var position = mapSourcePosition({
                  source: source,
                  line: line,
                  column: column,
                })
                frame = cloneCallSite(frame)
                var originalFunctionName = frame.getFunctionName
  
                frame.getFunctionName = function () {
                  return position.name || originalFunctionName()
                }
  
                frame.getFileName = function () {
                  return position.source
                }
  
                frame.getLineNumber = function () {
                  return position.line
                }
  
                frame.getColumnNumber = function () {
                  return position.column + 1
                }
  
                frame.getScriptNameOrSourceURL = function () {
                  return position.source
                }
  
                return frame
              } // Code called using eval() needs special handling
  
              var origin = frame.isEval() && frame.getEvalOrigin()
  
              if (origin) {
                origin = mapEvalOrigin(origin)
                frame = cloneCallSite(frame)
  
                frame.getEvalOrigin = function () {
                  return origin
                }
  
                return frame
              } // If we get here then we were unable to change the source position
  
              return frame
            } // This function is part of the V8 stack trace API, for more info see:
            // http://code.google.com/p/v8/wiki/JavaScriptStackTraceApi
  
            function prepareStackTrace(error, stack) {
              if (emptyCacheBetweenOperations) {
                fileContentsCache = {}
                sourceMapCache = {}
              }
  
              return (
                error +
                stack
                  .map(function (frame) {
                    return '\n    at ' + wrapCallSite(frame)
                  })
                  .join('')
              )
            } // Generate position and snippet of original source with pointer
  
            function getErrorSource(error) {
              var match = /\n    at [^(]+ \((.*):(\d+):(\d+)\)/.exec(error.stack)
  
              if (match) {
                var source = match[1]
                var line = +match[2]
                var column = +match[3] // Support the inline sourceContents inside the source map
  
                var contents = fileContentsCache[source] // Support files on disk
  
                if (!contents && fs && fs.existsSync(source)) {
                  try {
                    contents = fs.readFileSync(source, 'utf8')
                  } catch (er) {
                    contents = ''
                  }
                } // Format the line from the original source code like node does
  
                if (contents) {
                  var code = contents.split(/(?:\r\n|\r|\n)/)[line - 1]
  
                  if (code) {
                    return (
                      source +
                      ':' +
                      line +
                      '\n' +
                      code +
                      '\n' +
                      new Array(column).join(' ') +
                      '^'
                    )
                  }
                }
              }
  
              return null
            }
  
            function printErrorAndExit(error) {
              var source = getErrorSource(error) // Ensure error is printed synchronously and not truncated
  
              if (process.stderr._handle && process.stderr._handle.setBlocking) {
                process.stderr._handle.setBlocking(true)
              }
  
              if (source) {
                console.error()
                console.error(source)
              }
  
              console.error(error.stack)
              process.exit(1)
            }
  
            function shimEmitUncaughtException() {
              var origEmit = process.emit
  
              process.emit = function (type) {
                if (type === 'uncaughtException') {
                  var hasStack = arguments[1] && arguments[1].stack
                  var hasListeners = this.listeners(type).length > 0
  
                  if (hasStack && !hasListeners) {
                    return printErrorAndExit(arguments[1])
                  }
                }
  
                return origEmit.apply(this, arguments)
              }
            }
  
            var originalRetrieveFileHandlers = retrieveFileHandlers.slice(0)
            var originalRetrieveMapHandlers = retrieveMapHandlers.slice(0)
            exports.wrapCallSite = wrapCallSite
            exports.getErrorSource = getErrorSource
            exports.mapSourcePosition = mapSourcePosition
            exports.retrieveSourceMap = retrieveSourceMap
  
            exports.install = function (options) {
              options = options || {}
  
              if (options.environment) {
                environment = options.environment
  
                if (['node', 'browser', 'auto'].indexOf(environment) === -1) {
                  throw new Error(
                    'environment ' +
                      environment +
                      ' was unknown. Available options are {auto, browser, node}'
                  )
                }
              } // Allow sources to be found by methods other than reading the files
              // directly from disk.
  
              if (options.retrieveFile) {
                if (options.overrideRetrieveFile) {
                  retrieveFileHandlers.length = 0
                }
  
                retrieveFileHandlers.unshift(options.retrieveFile)
              } // Allow source maps to be found by methods other than reading the files
              // directly from disk.
  
              if (options.retrieveSourceMap) {
                if (options.overrideRetrieveSourceMap) {
                  retrieveMapHandlers.length = 0
                }
  
                retrieveMapHandlers.unshift(options.retrieveSourceMap)
              } // Support runtime transpilers that include inline source maps
  
              if (options.hookRequire && !isInBrowser()) {
                var Module
  
                try {
                  Module = __webpack_require__(282)
                } catch (err) {
                  // NOP: Loading in catch block to convert webpack error to warning.
                }
  
                var $compile = Module.prototype._compile
  
                if (!$compile.__sourceMapSupport) {
                  Module.prototype._compile = function (content, filename) {
                    fileContentsCache[filename] = content
                    sourceMapCache[filename] = undefined
                    return $compile.call(this, content, filename)
                  }
  
                  Module.prototype._compile.__sourceMapSupport = true
                }
              } // Configure options
  
              if (!emptyCacheBetweenOperations) {
                emptyCacheBetweenOperations =
                  'emptyCacheBetweenOperations' in options
                    ? options.emptyCacheBetweenOperations
                    : false
              } // Install the error reformatter
  
              if (!errorFormatterInstalled) {
                errorFormatterInstalled = true
                Error.prepareStackTrace = prepareStackTrace
              }
  
              if (!uncaughtShimInstalled) {
                var installHandler =
                  'handleUncaughtExceptions' in options
                    ? options.handleUncaughtExceptions
                    : true // Provide the option to not install the uncaught exception handler. This is
                // to support other uncaught exception handlers (in test frameworks, for
                // example). If this handler is not installed and there are no other uncaught
                // exception handlers, uncaught exceptions will be caught by node's built-in
                // exception handler and the process will still be terminated. However, the
                // generated JavaScript code will be shown above the stack trace instead of
                // the original source code.
  
                if (installHandler && hasGlobalProcessEventEmitter()) {
                  uncaughtShimInstalled = true
                  shimEmitUncaughtException()
                }
              }
            }
  
            exports.resetRetrieveHandlers = function () {
              retrieveFileHandlers.length = 0
              retrieveMapHandlers.length = 0
              retrieveFileHandlers = originalRetrieveFileHandlers.slice(0)
              retrieveMapHandlers = originalRetrieveMapHandlers.slice(0)
            }
            /***/
          },
  
        /***/
        837:
          /***/
          function _(__unused_webpack_module, exports, __webpack_require__) {
            /* -*- Mode: js; js-indent-level: 2; -*- */
  
            /*
             * Copyright 2011 Mozilla Foundation and contributors
             * Licensed under the New BSD license. See LICENSE or:
             * http://opensource.org/licenses/BSD-3-Clause
             */
            var util = __webpack_require__(983)
  
            var has = Object.prototype.hasOwnProperty
            var hasNativeMap = typeof Map !== 'undefined'
            /**
             * A data structure which is a combination of an array and a set. Adding a new
             * member is O(1), testing for membership is O(1), and finding the index of an
             * element is O(1). Removing elements from the set is not supported. Only
             * strings are supported for membership.
             */
  
            function ArraySet() {
              this._array = []
              this._set = hasNativeMap ? new Map() : Object.create(null)
            }
            /**
             * Static method for creating ArraySet instances from an existing array.
             */
  
            ArraySet.fromArray = function ArraySet_fromArray(
              aArray,
              aAllowDuplicates
            ) {
              var set = new ArraySet()
  
              for (var i = 0, len = aArray.length; i < len; i++) {
                set.add(aArray[i], aAllowDuplicates)
              }
  
              return set
            }
            /**
             * Return how many unique items are in this ArraySet. If duplicates have been
             * added, than those do not count towards the size.
             *
             * @returns Number
             */
  
            ArraySet.prototype.size = function ArraySet_size() {
              return hasNativeMap
                ? this._set.size
                : Object.getOwnPropertyNames(this._set).length
            }
            /**
             * Add the given string to this set.
             *
             * @param String aStr
             */
  
            ArraySet.prototype.add = function ArraySet_add(
              aStr,
              aAllowDuplicates
            ) {
              var sStr = hasNativeMap ? aStr : util.toSetString(aStr)
              var isDuplicate = hasNativeMap
                ? this.has(aStr)
                : has.call(this._set, sStr)
              var idx = this._array.length
  
              if (!isDuplicate || aAllowDuplicates) {
                this._array.push(aStr)
              }
  
              if (!isDuplicate) {
                if (hasNativeMap) {
                  this._set.set(aStr, idx)
                } else {
                  this._set[sStr] = idx
                }
              }
            }
            /**
             * Is the given string a member of this set?
             *
             * @param String aStr
             */
  
            ArraySet.prototype.has = function ArraySet_has(aStr) {
              if (hasNativeMap) {
                return this._set.has(aStr)
              } else {
                var sStr = util.toSetString(aStr)
                return has.call(this._set, sStr)
              }
            }
            /**
             * What is the index of the given string in the array?
             *
             * @param String aStr
             */
  
            ArraySet.prototype.indexOf = function ArraySet_indexOf(aStr) {
              if (hasNativeMap) {
                var idx = this._set.get(aStr)
  
                if (idx >= 0) {
                  return idx
                }
              } else {
                var sStr = util.toSetString(aStr)
  
                if (has.call(this._set, sStr)) {
                  return this._set[sStr]
                }
              }
  
              throw new Error('"' + aStr + '" is not in the set.')
            }
            /**
             * What is the element at the given index?
             *
             * @param Number aIdx
             */
  
            ArraySet.prototype.at = function ArraySet_at(aIdx) {
              if (aIdx >= 0 && aIdx < this._array.length) {
                return this._array[aIdx]
              }
  
              throw new Error('No element indexed by ' + aIdx)
            }
            /**
             * Returns the array representation of this set (which has the proper indices
             * indicated by indexOf). Note that this is a copy of the internal array used
             * for storing the members so that no one can mess with internal state.
             */
  
            ArraySet.prototype.toArray = function ArraySet_toArray() {
              return this._array.slice()
            }
  
            exports.I = ArraySet
            /***/
          },
  
        /***/
        215:
          /***/
          function _(__unused_webpack_module, exports, __webpack_require__) {
            /* -*- Mode: js; js-indent-level: 2; -*- */
  
            /*
             * Copyright 2011 Mozilla Foundation and contributors
             * Licensed under the New BSD license. See LICENSE or:
             * http://opensource.org/licenses/BSD-3-Clause
             *
             * Based on the Base 64 VLQ implementation in Closure Compiler:
             * https://code.google.com/p/closure-compiler/source/browse/trunk/src/com/google/debugging/sourcemap/Base64VLQ.java
             *
             * Copyright 2011 The Closure Compiler Authors. All rights reserved.
             * Redistribution and use in source and binary forms, with or without
             * modification, are permitted provided that the following conditions are
             * met:
             *
             *  * Redistributions of source code must retain the above copyright
             *    notice, this list of conditions and the following disclaimer.
             *  * Redistributions in binary form must reproduce the above
             *    copyright notice, this list of conditions and the following
             *    disclaimer in the documentation and/or other materials provided
             *    with the distribution.
             *  * Neither the name of Google Inc. nor the names of its
             *    contributors may be used to endorse or promote products derived
             *    from this software without specific prior written permission.
             *
             * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
             * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
             * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
             * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
             * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
             * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
             * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
             * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
             * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
             * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
             * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
             */
            var base64 = __webpack_require__(537) // A single base 64 digit can contain 6 bits of data. For the base 64 variable
            // length quantities we use in the source map spec, the first bit is the sign,
            // the next four bits are the actual value, and the 6th bit is the
            // continuation bit. The continuation bit tells us whether there are more
            // digits in this value following this digit.
            //
            //   Continuation
            //   |    Sign
            //   |    |
            //   V    V
            //   101011
  
            var VLQ_BASE_SHIFT = 5 // binary: 100000
  
            var VLQ_BASE = 1 << VLQ_BASE_SHIFT // binary: 011111
  
            var VLQ_BASE_MASK = VLQ_BASE - 1 // binary: 100000
  
            var VLQ_CONTINUATION_BIT = VLQ_BASE
            /**
             * Converts from a two-complement value to a value where the sign bit is
             * placed in the least significant bit.  For example, as decimals:
             *   1 becomes 2 (10 binary), -1 becomes 3 (11 binary)
             *   2 becomes 4 (100 binary), -2 becomes 5 (101 binary)
             */
  
            function toVLQSigned(aValue) {
              return aValue < 0 ? (-aValue << 1) + 1 : (aValue << 1) + 0
            }
            /**
             * Converts to a two-complement value from a value where the sign bit is
             * placed in the least significant bit.  For example, as decimals:
             *   2 (10 binary) becomes 1, 3 (11 binary) becomes -1
             *   4 (100 binary) becomes 2, 5 (101 binary) becomes -2
             */
  
            function fromVLQSigned(aValue) {
              var isNegative = (aValue & 1) === 1
              var shifted = aValue >> 1
              return isNegative ? -shifted : shifted
            }
            /**
             * Returns the base 64 VLQ encoded value.
             */
  
            exports.encode = function base64VLQ_encode(aValue) {
              var encoded = ''
              var digit
              var vlq = toVLQSigned(aValue)
  
              do {
                digit = vlq & VLQ_BASE_MASK
                vlq >>>= VLQ_BASE_SHIFT
  
                if (vlq > 0) {
                  // There are still more digits in this value, so we must make sure the
                  // continuation bit is marked.
                  digit |= VLQ_CONTINUATION_BIT
                }
  
                encoded += base64.encode(digit)
              } while (vlq > 0)
  
              return encoded
            }
            /**
             * Decodes the next base 64 VLQ value from the given string and returns the
             * value and the rest of the string via the out parameter.
             */
  
            exports.decode = function base64VLQ_decode(aStr, aIndex, aOutParam) {
              var strLen = aStr.length
              var result = 0
              var shift = 0
              var continuation, digit
  
              do {
                if (aIndex >= strLen) {
                  throw new Error('Expected more digits in base 64 VLQ value.')
                }
  
                digit = base64.decode(aStr.charCodeAt(aIndex++))
  
                if (digit === -1) {
                  throw new Error(
                    'Invalid base64 digit: ' + aStr.charAt(aIndex - 1)
                  )
                }
  
                continuation = !!(digit & VLQ_CONTINUATION_BIT)
                digit &= VLQ_BASE_MASK
                result = result + (digit << shift)
                shift += VLQ_BASE_SHIFT
              } while (continuation)
  
              aOutParam.value = fromVLQSigned(result)
              aOutParam.rest = aIndex
            }
            /***/
          },
  
        /***/
        537:
          /***/
          function _(__unused_webpack_module, exports) {
            /* -*- Mode: js; js-indent-level: 2; -*- */
  
            /*
             * Copyright 2011 Mozilla Foundation and contributors
             * Licensed under the New BSD license. See LICENSE or:
             * http://opensource.org/licenses/BSD-3-Clause
             */
            var intToCharMap = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'.split(
              ''
            )
            /**
             * Encode an integer in the range of 0 to 63 to a single base 64 digit.
             */
  
            exports.encode = function (number) {
              if (0 <= number && number < intToCharMap.length) {
                return intToCharMap[number]
              }
  
              throw new TypeError('Must be between 0 and 63: ' + number)
            }
            /**
             * Decode a single base 64 character code digit to an integer. Returns -1 on
             * failure.
             */
  
            exports.decode = function (charCode) {
              var bigA = 65 // 'A'
  
              var bigZ = 90 // 'Z'
  
              var littleA = 97 // 'a'
  
              var littleZ = 122 // 'z'
  
              var zero = 48 // '0'
  
              var nine = 57 // '9'
  
              var plus = 43 // '+'
  
              var slash = 47 // '/'
  
              var littleOffset = 26
              var numberOffset = 52 // 0 - 25: ABCDEFGHIJKLMNOPQRSTUVWXYZ
  
              if (bigA <= charCode && charCode <= bigZ) {
                return charCode - bigA
              } // 26 - 51: abcdefghijklmnopqrstuvwxyz
  
              if (littleA <= charCode && charCode <= littleZ) {
                return charCode - littleA + littleOffset
              } // 52 - 61: 0123456789
  
              if (zero <= charCode && charCode <= nine) {
                return charCode - zero + numberOffset
              } // 62: +
  
              if (charCode == plus) {
                return 62
              } // 63: /
  
              if (charCode == slash) {
                return 63
              } // Invalid base64 digit.
  
              return -1
            }
            /***/
          },
  
        /***/
        164:
          /***/
          function _(__unused_webpack_module, exports) {
            /* -*- Mode: js; js-indent-level: 2; -*- */
  
            /*
             * Copyright 2011 Mozilla Foundation and contributors
             * Licensed under the New BSD license. See LICENSE or:
             * http://opensource.org/licenses/BSD-3-Clause
             */
            exports.GREATEST_LOWER_BOUND = 1
            exports.LEAST_UPPER_BOUND = 2
            /**
             * Recursive implementation of binary search.
             *
             * @param aLow Indices here and lower do not contain the needle.
             * @param aHigh Indices here and higher do not contain the needle.
             * @param aNeedle The element being searched for.
             * @param aHaystack The non-empty array being searched.
             * @param aCompare Function which takes two elements and returns -1, 0, or 1.
             * @param aBias Either 'binarySearch.GREATEST_LOWER_BOUND' or
             *     'binarySearch.LEAST_UPPER_BOUND'. Specifies whether to return the
             *     closest element that is smaller than or greater than the one we are
             *     searching for, respectively, if the exact element cannot be found.
             */
  
            function recursiveSearch(
              aLow,
              aHigh,
              aNeedle,
              aHaystack,
              aCompare,
              aBias
            ) {
              // This function terminates when one of the following is true:
              //
              //   1. We find the exact element we are looking for.
              //
              //   2. We did not find the exact element, but we can return the index of
              //      the next-closest element.
              //
              //   3. We did not find the exact element, and there is no next-closest
              //      element than the one we are searching for, so we return -1.
              var mid = Math.floor((aHigh - aLow) / 2) + aLow
              var cmp = aCompare(aNeedle, aHaystack[mid], true)
  
              if (cmp === 0) {
                // Found the element we are looking for.
                return mid
              } else if (cmp > 0) {
                // Our needle is greater than aHaystack[mid].
                if (aHigh - mid > 1) {
                  // The element is in the upper half.
                  return recursiveSearch(
                    mid,
                    aHigh,
                    aNeedle,
                    aHaystack,
                    aCompare,
                    aBias
                  )
                } // The exact needle element was not found in this haystack. Determine if
                // we are in termination case (3) or (2) and return the appropriate thing.
  
                if (aBias == exports.LEAST_UPPER_BOUND) {
                  return aHigh < aHaystack.length ? aHigh : -1
                } else {
                  return mid
                }
              } else {
                // Our needle is less than aHaystack[mid].
                if (mid - aLow > 1) {
                  // The element is in the lower half.
                  return recursiveSearch(
                    aLow,
                    mid,
                    aNeedle,
                    aHaystack,
                    aCompare,
                    aBias
                  )
                } // we are in termination case (3) or (2) and return the appropriate thing.
  
                if (aBias == exports.LEAST_UPPER_BOUND) {
                  return mid
                } else {
                  return aLow < 0 ? -1 : aLow
                }
              }
            }
            /**
             * This is an implementation of binary search which will always try and return
             * the index of the closest element if there is no exact hit. This is because
             * mappings between original and generated line/col pairs are single points,
             * and there is an implicit region between each of them, so a miss just means
             * that you aren't on the very start of a region.
             *
             * @param aNeedle The element you are looking for.
             * @param aHaystack The array that is being searched.
             * @param aCompare A function which takes the needle and an element in the
             *     array and returns -1, 0, or 1 depending on whether the needle is less
             *     than, equal to, or greater than the element, respectively.
             * @param aBias Either 'binarySearch.GREATEST_LOWER_BOUND' or
             *     'binarySearch.LEAST_UPPER_BOUND'. Specifies whether to return the
             *     closest element that is smaller than or greater than the one we are
             *     searching for, respectively, if the exact element cannot be found.
             *     Defaults to 'binarySearch.GREATEST_LOWER_BOUND'.
             */
  
            exports.search = function search(
              aNeedle,
              aHaystack,
              aCompare,
              aBias
            ) {
              if (aHaystack.length === 0) {
                return -1
              }
  
              var index = recursiveSearch(
                -1,
                aHaystack.length,
                aNeedle,
                aHaystack,
                aCompare,
                aBias || exports.GREATEST_LOWER_BOUND
              )
  
              if (index < 0) {
                return -1
              } // We have found either the exact element, or the next-closest element than
              // the one we are searching for. However, there may be more than one such
              // element. Make sure we always return the smallest of these.
  
              while (index - 1 >= 0) {
                if (
                  aCompare(aHaystack[index], aHaystack[index - 1], true) !== 0
                ) {
                  break
                }
  
                --index
              }
  
              return index
            }
            /***/
          },
  
        /***/
        740:
          /***/
          function _(__unused_webpack_module, exports, __webpack_require__) {
            /* -*- Mode: js; js-indent-level: 2; -*- */
  
            /*
             * Copyright 2014 Mozilla Foundation and contributors
             * Licensed under the New BSD license. See LICENSE or:
             * http://opensource.org/licenses/BSD-3-Clause
             */
            var util = __webpack_require__(983)
            /**
             * Determine whether mappingB is after mappingA with respect to generated
             * position.
             */
  
            function generatedPositionAfter(mappingA, mappingB) {
              // Optimized for most common case
              var lineA = mappingA.generatedLine
              var lineB = mappingB.generatedLine
              var columnA = mappingA.generatedColumn
              var columnB = mappingB.generatedColumn
              return (
                lineB > lineA ||
                (lineB == lineA && columnB >= columnA) ||
                util.compareByGeneratedPositionsInflated(mappingA, mappingB) <= 0
              )
            }
            /**
             * A data structure to provide a sorted view of accumulated mappings in a
             * performance conscious manner. It trades a neglibable overhead in general
             * case for a large speedup in case of mappings being added in order.
             */
  
            function MappingList() {
              this._array = []
              this._sorted = true // Serves as infimum
  
              this._last = {
                generatedLine: -1,
                generatedColumn: 0,
              }
            }
            /**
             * Iterate through internal items. This method takes the same arguments that
             * `Array.prototype.forEach` takes.
             *
             * NOTE: The order of the mappings is NOT guaranteed.
             */
  
            MappingList.prototype.unsortedForEach = function MappingList_forEach(
              aCallback,
              aThisArg
            ) {
              this._array.forEach(aCallback, aThisArg)
            }
            /**
             * Add the given source mapping.
             *
             * @param Object aMapping
             */
  
            MappingList.prototype.add = function MappingList_add(aMapping) {
              if (generatedPositionAfter(this._last, aMapping)) {
                this._last = aMapping
  
                this._array.push(aMapping)
              } else {
                this._sorted = false
  
                this._array.push(aMapping)
              }
            }
            /**
             * Returns the flat, sorted array of mappings. The mappings are sorted by
             * generated position.
             *
             * WARNING: This method returns internal data without copying, for
             * performance. The return value must NOT be mutated, and should be treated as
             * an immutable borrow. If you want to take ownership, you must make your own
             * copy.
             */
  
            MappingList.prototype.toArray = function MappingList_toArray() {
              if (!this._sorted) {
                this._array.sort(util.compareByGeneratedPositionsInflated)
  
                this._sorted = true
              }
  
              return this._array
            }
  
            exports.H = MappingList
            /***/
          },
  
        /***/
        226:
          /***/
          function _(__unused_webpack_module, exports) {
            /* -*- Mode: js; js-indent-level: 2; -*- */
  
            /*
             * Copyright 2011 Mozilla Foundation and contributors
             * Licensed under the New BSD license. See LICENSE or:
             * http://opensource.org/licenses/BSD-3-Clause
             */
            // It turns out that some (most?) JavaScript engines don't self-host
            // `Array.prototype.sort`. This makes sense because C++ will likely remain
            // faster than JS when doing raw CPU-intensive sorting. However, when using a
            // custom comparator function, calling back and forth between the VM's C++ and
            // JIT'd JS is rather slow *and* loses JIT type information, resulting in
            // worse generated code for the comparator function than would be optimal. In
            // fact, when sorting with a comparator, these costs outweigh the benefits of
            // sorting in C++. By using our own JS-implemented Quick Sort (below), we get
            // a ~3500ms mean speed-up in `bench/bench.html`.
  
            /**
             * Swap the elements indexed by `x` and `y` in the array `ary`.
             *
             * @param {Array} ary
             *        The array.
             * @param {Number} x
             *        The index of the first item.
             * @param {Number} y
             *        The index of the second item.
             */
            function swap(ary, x, y) {
              var temp = ary[x]
              ary[x] = ary[y]
              ary[y] = temp
            }
            /**
             * Returns a random integer within the range `low .. high` inclusive.
             *
             * @param {Number} low
             *        The lower bound on the range.
             * @param {Number} high
             *        The upper bound on the range.
             */
  
            function randomIntInRange(low, high) {
              return Math.round(low + Math.random() * (high - low))
            }
            /**
             * The Quick Sort algorithm.
             *
             * @param {Array} ary
             *        An array to sort.
             * @param {function} comparator
             *        Function to use to compare two items.
             * @param {Number} p
             *        Start index of the array
             * @param {Number} r
             *        End index of the array
             */
  
            function doQuickSort(ary, comparator, p, r) {
              // If our lower bound is less than our upper bound, we (1) partition the
              // array into two pieces and (2) recurse on each half. If it is not, this is
              // the empty array and our base case.
              if (p < r) {
                // (1) Partitioning.
                //
                // The partitioning chooses a pivot between `p` and `r` and moves all
                // elements that are less than or equal to the pivot to the before it, and
                // all the elements that are greater than it after it. The effect is that
                // once partition is done, the pivot is in the exact place it will be when
                // the array is put in sorted order, and it will not need to be moved
                // again. This runs in O(n) time.
                // Always choose a random pivot so that an input array which is reverse
                // sorted does not cause O(n^2) running time.
                var pivotIndex = randomIntInRange(p, r)
                var i = p - 1
                swap(ary, pivotIndex, r)
                var pivot = ary[r] // Immediately after `j` is incremented in this loop, the following hold
                // true:
                //
                //   * Every element in `ary[p .. i]` is less than or equal to the pivot.
                //
                //   * Every element in `ary[i+1 .. j-1]` is greater than the pivot.
  
                for (var j = p; j < r; j++) {
                  if (comparator(ary[j], pivot) <= 0) {
                    i += 1
                    swap(ary, i, j)
                  }
                }
  
                swap(ary, i + 1, j)
                var q = i + 1 // (2) Recurse on each half.
  
                doQuickSort(ary, comparator, p, q - 1)
                doQuickSort(ary, comparator, q + 1, r)
              }
            }
            /**
             * Sort the given array in-place with the given comparator function.
             *
             * @param {Array} ary
             *        An array to sort.
             * @param {function} comparator
             *        Function to use to compare two items.
             */
  
            exports.U = function (ary, comparator) {
              doQuickSort(ary, comparator, 0, ary.length - 1)
            }
            /***/
          },
  
        /***/
        327:
          /***/
          function _(__unused_webpack_module, exports, __webpack_require__) {
            var __webpack_unused_export__
            /* -*- Mode: js; js-indent-level: 2; -*- */
  
            /*
             * Copyright 2011 Mozilla Foundation and contributors
             * Licensed under the New BSD license. See LICENSE or:
             * http://opensource.org/licenses/BSD-3-Clause
             */
  
            var util = __webpack_require__(983)
  
            var binarySearch = __webpack_require__(164)
  
            var ArraySet =
              /* .ArraySet */
              __webpack_require__(837).I
  
            var base64VLQ = __webpack_require__(215)
  
            var quickSort =
              /* .quickSort */
              __webpack_require__(226).U
  
            function SourceMapConsumer(aSourceMap, aSourceMapURL) {
              var sourceMap = aSourceMap
  
              if (typeof aSourceMap === 'string') {
                sourceMap = util.parseSourceMapInput(aSourceMap)
              }
  
              return sourceMap.sections != null
                ? new IndexedSourceMapConsumer(sourceMap, aSourceMapURL)
                : new BasicSourceMapConsumer(sourceMap, aSourceMapURL)
            }
  
            SourceMapConsumer.fromSourceMap = function (
              aSourceMap,
              aSourceMapURL
            ) {
              return BasicSourceMapConsumer.fromSourceMap(
                aSourceMap,
                aSourceMapURL
              )
            }
            /**
             * The version of the source mapping spec that we are consuming.
             */
  
            SourceMapConsumer.prototype._version = 3 // `__generatedMappings` and `__originalMappings` are arrays that hold the
            // parsed mapping coordinates from the source map's "mappings" attribute. They
            // are lazily instantiated, accessed via the `_generatedMappings` and
            // `_originalMappings` getters respectively, and we only parse the mappings
            // and create these arrays once queried for a source location. We jump through
            // these hoops because there can be many thousands of mappings, and parsing
            // them is expensive, so we only want to do it if we must.
            //
            // Each object in the arrays is of the form:
            //
            //     {
            //       generatedLine: The line number in the generated code,
            //       generatedColumn: The column number in the generated code,
            //       source: The path to the original source file that generated this
            //               chunk of code,
            //       originalLine: The line number in the original source that
            //                     corresponds to this chunk of generated code,
            //       originalColumn: The column number in the original source that
            //                       corresponds to this chunk of generated code,
            //       name: The name of the original symbol which generated this chunk of
            //             code.
            //     }
            //
            // All properties except for `generatedLine` and `generatedColumn` can be
            // `null`.
            //
            // `_generatedMappings` is ordered by the generated positions.
            //
            // `_originalMappings` is ordered by the original positions.
  
            SourceMapConsumer.prototype.__generatedMappings = null
            Object.defineProperty(
              SourceMapConsumer.prototype,
              '_generatedMappings',
              {
                configurable: true,
                enumerable: true,
                get: function get() {
                  if (!this.__generatedMappings) {
                    this._parseMappings(this._mappings, this.sourceRoot)
                  }
  
                  return this.__generatedMappings
                },
              }
            )
            SourceMapConsumer.prototype.__originalMappings = null
            Object.defineProperty(
              SourceMapConsumer.prototype,
              '_originalMappings',
              {
                configurable: true,
                enumerable: true,
                get: function get() {
                  if (!this.__originalMappings) {
                    this._parseMappings(this._mappings, this.sourceRoot)
                  }
  
                  return this.__originalMappings
                },
              }
            )
  
            SourceMapConsumer.prototype._charIsMappingSeparator = function SourceMapConsumer_charIsMappingSeparator(
              aStr,
              index
            ) {
              var c = aStr.charAt(index)
              return c === ';' || c === ','
            }
            /**
             * Parse the mappings in a string in to a data structure which we can easily
             * query (the ordered arrays in the `this.__generatedMappings` and
             * `this.__originalMappings` properties).
             */
  
            SourceMapConsumer.prototype._parseMappings = function SourceMapConsumer_parseMappings(
              aStr,
              aSourceRoot
            ) {
              throw new Error('Subclasses must implement _parseMappings')
            }
  
            SourceMapConsumer.GENERATED_ORDER = 1
            SourceMapConsumer.ORIGINAL_ORDER = 2
            SourceMapConsumer.GREATEST_LOWER_BOUND = 1
            SourceMapConsumer.LEAST_UPPER_BOUND = 2
            /**
             * Iterate over each mapping between an original source/line/column and a
             * generated line/column in this source map.
             *
             * @param Function aCallback
             *        The function that is called with each mapping.
             * @param Object aContext
             *        Optional. If specified, this object will be the value of `this` every
             *        time that `aCallback` is called.
             * @param aOrder
             *        Either `SourceMapConsumer.GENERATED_ORDER` or
             *        `SourceMapConsumer.ORIGINAL_ORDER`. Specifies whether you want to
             *        iterate over the mappings sorted by the generated file's line/column
             *        order or the original's source/line/column order, respectively. Defaults to
             *        `SourceMapConsumer.GENERATED_ORDER`.
             */
  
            SourceMapConsumer.prototype.eachMapping = function SourceMapConsumer_eachMapping(
              aCallback,
              aContext,
              aOrder
            ) {
              var context = aContext || null
              var order = aOrder || SourceMapConsumer.GENERATED_ORDER
              var mappings
  
              switch (order) {
                case SourceMapConsumer.GENERATED_ORDER:
                  mappings = this._generatedMappings
                  break
  
                case SourceMapConsumer.ORIGINAL_ORDER:
                  mappings = this._originalMappings
                  break
  
                default:
                  throw new Error('Unknown order of iteration.')
              }
  
              var sourceRoot = this.sourceRoot
              mappings
                .map(function (mapping) {
                  var source =
                    mapping.source === null
                      ? null
                      : this._sources.at(mapping.source)
                  source = util.computeSourceURL(
                    sourceRoot,
                    source,
                    this._sourceMapURL
                  )
                  return {
                    source: source,
                    generatedLine: mapping.generatedLine,
                    generatedColumn: mapping.generatedColumn,
                    originalLine: mapping.originalLine,
                    originalColumn: mapping.originalColumn,
                    name:
                      mapping.name === null ? null : this._names.at(mapping.name),
                  }
                }, this)
                .forEach(aCallback, context)
            }
            /**
             * Returns all generated line and column information for the original source,
             * line, and column provided. If no column is provided, returns all mappings
             * corresponding to a either the line we are searching for or the next
             * closest line that has any mappings. Otherwise, returns all mappings
             * corresponding to the given line and either the column we are searching for
             * or the next closest column that has any offsets.
             *
             * The only argument is an object with the following properties:
             *
             *   - source: The filename of the original source.
             *   - line: The line number in the original source.  The line number is 1-based.
             *   - column: Optional. the column number in the original source.
             *    The column number is 0-based.
             *
             * and an array of objects is returned, each with the following properties:
             *
             *   - line: The line number in the generated source, or null.  The
             *    line number is 1-based.
             *   - column: The column number in the generated source, or null.
             *    The column number is 0-based.
             */
  
            SourceMapConsumer.prototype.allGeneratedPositionsFor = function SourceMapConsumer_allGeneratedPositionsFor(
              aArgs
            ) {
              var line = util.getArg(aArgs, 'line') // When there is no exact match, BasicSourceMapConsumer.prototype._findMapping
              // returns the index of the closest mapping less than the needle. By
              // setting needle.originalColumn to 0, we thus find the last mapping for
              // the given line, provided such a mapping exists.
  
              var needle = {
                source: util.getArg(aArgs, 'source'),
                originalLine: line,
                originalColumn: util.getArg(aArgs, 'column', 0),
              }
              needle.source = this._findSourceIndex(needle.source)
  
              if (needle.source < 0) {
                return []
              }
  
              var mappings = []
  
              var index = this._findMapping(
                needle,
                this._originalMappings,
                'originalLine',
                'originalColumn',
                util.compareByOriginalPositions,
                binarySearch.LEAST_UPPER_BOUND
              )
  
              if (index >= 0) {
                var mapping = this._originalMappings[index]
  
                if (aArgs.column === undefined) {
                  var originalLine = mapping.originalLine // Iterate until either we run out of mappings, or we run into
                  // a mapping for a different line than the one we found. Since
                  // mappings are sorted, this is guaranteed to find all mappings for
                  // the line we found.
  
                  while (mapping && mapping.originalLine === originalLine) {
                    mappings.push({
                      line: util.getArg(mapping, 'generatedLine', null),
                      column: util.getArg(mapping, 'generatedColumn', null),
                      lastColumn: util.getArg(
                        mapping,
                        'lastGeneratedColumn',
                        null
                      ),
                    })
                    mapping = this._originalMappings[++index]
                  }
                } else {
                  var originalColumn = mapping.originalColumn // Iterate until either we run out of mappings, or we run into
                  // a mapping for a different line than the one we were searching for.
                  // Since mappings are sorted, this is guaranteed to find all mappings for
                  // the line we are searching for.
  
                  while (
                    mapping &&
                    mapping.originalLine === line &&
                    mapping.originalColumn == originalColumn
                  ) {
                    mappings.push({
                      line: util.getArg(mapping, 'generatedLine', null),
                      column: util.getArg(mapping, 'generatedColumn', null),
                      lastColumn: util.getArg(
                        mapping,
                        'lastGeneratedColumn',
                        null
                      ),
                    })
                    mapping = this._originalMappings[++index]
                  }
                }
              }
  
              return mappings
            }
  
            exports.SourceMapConsumer = SourceMapConsumer
            /**
             * A BasicSourceMapConsumer instance represents a parsed source map which we can
             * query for information about the original file positions by giving it a file
             * position in the generated source.
             *
             * The first parameter is the raw source map (either as a JSON string, or
             * already parsed to an object). According to the spec, source maps have the
             * following attributes:
             *
             *   - version: Which version of the source map spec this map is following.
             *   - sources: An array of URLs to the original source files.
             *   - names: An array of identifiers which can be referrenced by individual mappings.
             *   - sourceRoot: Optional. The URL root from which all sources are relative.
             *   - sourcesContent: Optional. An array of contents of the original source files.
             *   - mappings: A string of base64 VLQs which contain the actual mappings.
             *   - file: Optional. The generated file this source map is associated with.
             *
             * Here is an example source map, taken from the source map spec[0]:
             *
             *     {
             *       version : 3,
             *       file: "out.js",
             *       sourceRoot : "",
             *       sources: ["foo.js", "bar.js"],
             *       names: ["src", "maps", "are", "fun"],
             *       mappings: "AA,AB;;ABCDE;"
             *     }
             *
             * The second parameter, if given, is a string whose value is the URL
             * at which the source map was found.  This URL is used to compute the
             * sources array.
             *
             * [0]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit?pli=1#
             */
  
            function BasicSourceMapConsumer(aSourceMap, aSourceMapURL) {
              var sourceMap = aSourceMap
  
              if (typeof aSourceMap === 'string') {
                sourceMap = util.parseSourceMapInput(aSourceMap)
              }
  
              var version = util.getArg(sourceMap, 'version')
              var sources = util.getArg(sourceMap, 'sources') // Sass 3.3 leaves out the 'names' array, so we deviate from the spec (which
              // requires the array) to play nice here.
  
              var names = util.getArg(sourceMap, 'names', [])
              var sourceRoot = util.getArg(sourceMap, 'sourceRoot', null)
              var sourcesContent = util.getArg(sourceMap, 'sourcesContent', null)
              var mappings = util.getArg(sourceMap, 'mappings')
              var file = util.getArg(sourceMap, 'file', null) // Once again, Sass deviates from the spec and supplies the version as a
              // string rather than a number, so we use loose equality checking here.
  
              if (version != this._version) {
                throw new Error('Unsupported version: ' + version)
              }
  
              if (sourceRoot) {
                sourceRoot = util.normalize(sourceRoot)
              }
  
              sources = sources
                .map(String) // Some source maps produce relative source paths like "./foo.js" instead of
                // "foo.js".  Normalize these first so that future comparisons will succeed.
                // See bugzil.la/1090768.
                .map(util.normalize) // Always ensure that absolute sources are internally stored relative to
                // the source root, if the source root is absolute. Not doing this would
                // be particularly problematic when the source root is a prefix of the
                // source (valid, but why??). See github issue #199 and bugzil.la/1188982.
                .map(function (source) {
                  return sourceRoot &&
                    util.isAbsolute(sourceRoot) &&
                    util.isAbsolute(source)
                    ? util.relative(sourceRoot, source)
                    : source
                }) // Pass `true` below to allow duplicate names and sources. While source maps
              // are intended to be compressed and deduplicated, the TypeScript compiler
              // sometimes generates source maps with duplicates in them. See Github issue
              // #72 and bugzil.la/889492.
  
              this._names = ArraySet.fromArray(names.map(String), true)
              this._sources = ArraySet.fromArray(sources, true)
              this._absoluteSources = this._sources.toArray().map(function (s) {
                return util.computeSourceURL(sourceRoot, s, aSourceMapURL)
              })
              this.sourceRoot = sourceRoot
              this.sourcesContent = sourcesContent
              this._mappings = mappings
              this._sourceMapURL = aSourceMapURL
              this.file = file
            }
  
            BasicSourceMapConsumer.prototype = Object.create(
              SourceMapConsumer.prototype
            )
            BasicSourceMapConsumer.prototype.consumer = SourceMapConsumer
            /**
             * Utility function to find the index of a source.  Returns -1 if not
             * found.
             */
  
            BasicSourceMapConsumer.prototype._findSourceIndex = function (
              aSource
            ) {
              var relativeSource = aSource
  
              if (this.sourceRoot != null) {
                relativeSource = util.relative(this.sourceRoot, relativeSource)
              }
  
              if (this._sources.has(relativeSource)) {
                return this._sources.indexOf(relativeSource)
              } // Maybe aSource is an absolute URL as returned by |sources|.  In
              // this case we can't simply undo the transform.
  
              var i
  
              for (i = 0; i < this._absoluteSources.length; ++i) {
                if (this._absoluteSources[i] == aSource) {
                  return i
                }
              }
  
              return -1
            }
            /**
             * Create a BasicSourceMapConsumer from a SourceMapGenerator.
             *
             * @param SourceMapGenerator aSourceMap
             *        The source map that will be consumed.
             * @param String aSourceMapURL
             *        The URL at which the source map can be found (optional)
             * @returns BasicSourceMapConsumer
             */
  
            BasicSourceMapConsumer.fromSourceMap = function SourceMapConsumer_fromSourceMap(
              aSourceMap,
              aSourceMapURL
            ) {
              var smc = Object.create(BasicSourceMapConsumer.prototype)
              var names = (smc._names = ArraySet.fromArray(
                aSourceMap._names.toArray(),
                true
              ))
              var sources = (smc._sources = ArraySet.fromArray(
                aSourceMap._sources.toArray(),
                true
              ))
              smc.sourceRoot = aSourceMap._sourceRoot
              smc.sourcesContent = aSourceMap._generateSourcesContent(
                smc._sources.toArray(),
                smc.sourceRoot
              )
              smc.file = aSourceMap._file
              smc._sourceMapURL = aSourceMapURL
              smc._absoluteSources = smc._sources.toArray().map(function (s) {
                return util.computeSourceURL(smc.sourceRoot, s, aSourceMapURL)
              }) // Because we are modifying the entries (by converting string sources and
              // names to indices into the sources and names ArraySets), we have to make
              // a copy of the entry or else bad things happen. Shared mutable state
              // strikes again! See github issue #191.
  
              var generatedMappings = aSourceMap._mappings.toArray().slice()
  
              var destGeneratedMappings = (smc.__generatedMappings = [])
              var destOriginalMappings = (smc.__originalMappings = [])
  
              for (
                var i = 0, length = generatedMappings.length;
                i < length;
                i++
              ) {
                var srcMapping = generatedMappings[i]
                var destMapping = new Mapping()
                destMapping.generatedLine = srcMapping.generatedLine
                destMapping.generatedColumn = srcMapping.generatedColumn
  
                if (srcMapping.source) {
                  destMapping.source = sources.indexOf(srcMapping.source)
                  destMapping.originalLine = srcMapping.originalLine
                  destMapping.originalColumn = srcMapping.originalColumn
  
                  if (srcMapping.name) {
                    destMapping.name = names.indexOf(srcMapping.name)
                  }
  
                  destOriginalMappings.push(destMapping)
                }
  
                destGeneratedMappings.push(destMapping)
              }
  
              quickSort(smc.__originalMappings, util.compareByOriginalPositions)
              return smc
            }
            /**
             * The version of the source mapping spec that we are consuming.
             */
  
            BasicSourceMapConsumer.prototype._version = 3
            /**
             * The list of original sources.
             */
  
            Object.defineProperty(BasicSourceMapConsumer.prototype, 'sources', {
              get: function get() {
                return this._absoluteSources.slice()
              },
            })
            /**
             * Provide the JIT with a nice shape / hidden class.
             */
  
            function Mapping() {
              this.generatedLine = 0
              this.generatedColumn = 0
              this.source = null
              this.originalLine = null
              this.originalColumn = null
              this.name = null
            }
            /**
             * Parse the mappings in a string in to a data structure which we can easily
             * query (the ordered arrays in the `this.__generatedMappings` and
             * `this.__originalMappings` properties).
             */
  
            BasicSourceMapConsumer.prototype._parseMappings = function SourceMapConsumer_parseMappings(
              aStr,
              aSourceRoot
            ) {
              var generatedLine = 1
              var previousGeneratedColumn = 0
              var previousOriginalLine = 0
              var previousOriginalColumn = 0
              var previousSource = 0
              var previousName = 0
              var length = aStr.length
              var index = 0
              var cachedSegments = {}
              var temp = {}
              var originalMappings = []
              var generatedMappings = []
              var mapping, str, segment, end, value
  
              while (index < length) {
                if (aStr.charAt(index) === ';') {
                  generatedLine++
                  index++
                  previousGeneratedColumn = 0
                } else if (aStr.charAt(index) === ',') {
                  index++
                } else {
                  mapping = new Mapping()
                  mapping.generatedLine = generatedLine // Because each offset is encoded relative to the previous one,
                  // many segments often have the same encoding. We can exploit this
                  // fact by caching the parsed variable length fields of each segment,
                  // allowing us to avoid a second parse if we encounter the same
                  // segment again.
  
                  for (end = index; end < length; end++) {
                    if (this._charIsMappingSeparator(aStr, end)) {
                      break
                    }
                  }
  
                  str = aStr.slice(index, end)
                  segment = cachedSegments[str]
  
                  if (segment) {
                    index += str.length
                  } else {
                    segment = []
  
                    while (index < end) {
                      base64VLQ.decode(aStr, index, temp)
                      value = temp.value
                      index = temp.rest
                      segment.push(value)
                    }
  
                    if (segment.length === 2) {
                      throw new Error('Found a source, but no line and column')
                    }
  
                    if (segment.length === 3) {
                      throw new Error('Found a source and line, but no column')
                    }
  
                    cachedSegments[str] = segment
                  } // Generated column.
  
                  mapping.generatedColumn = previousGeneratedColumn + segment[0]
                  previousGeneratedColumn = mapping.generatedColumn
  
                  if (segment.length > 1) {
                    // Original source.
                    mapping.source = previousSource + segment[1]
                    previousSource += segment[1] // Original line.
  
                    mapping.originalLine = previousOriginalLine + segment[2]
                    previousOriginalLine = mapping.originalLine // Lines are stored 0-based
  
                    mapping.originalLine += 1 // Original column.
  
                    mapping.originalColumn = previousOriginalColumn + segment[3]
                    previousOriginalColumn = mapping.originalColumn
  
                    if (segment.length > 4) {
                      // Original name.
                      mapping.name = previousName + segment[4]
                      previousName += segment[4]
                    }
                  }
  
                  generatedMappings.push(mapping)
  
                  if (typeof mapping.originalLine === 'number') {
                    originalMappings.push(mapping)
                  }
                }
              }
  
              quickSort(
                generatedMappings,
                util.compareByGeneratedPositionsDeflated
              )
              this.__generatedMappings = generatedMappings
              quickSort(originalMappings, util.compareByOriginalPositions)
              this.__originalMappings = originalMappings
            }
            /**
             * Find the mapping that best matches the hypothetical "needle" mapping that
             * we are searching for in the given "haystack" of mappings.
             */
  
            BasicSourceMapConsumer.prototype._findMapping = function SourceMapConsumer_findMapping(
              aNeedle,
              aMappings,
              aLineName,
              aColumnName,
              aComparator,
              aBias
            ) {
              // To return the position we are searching for, we must first find the
              // mapping for the given position and then return the opposite position it
              // points to. Because the mappings are sorted, we can use binary search to
              // find the best mapping.
              if (aNeedle[aLineName] <= 0) {
                throw new TypeError(
                  'Line must be greater than or equal to 1, got ' +
                    aNeedle[aLineName]
                )
              }
  
              if (aNeedle[aColumnName] < 0) {
                throw new TypeError(
                  'Column must be greater than or equal to 0, got ' +
                    aNeedle[aColumnName]
                )
              }
  
              return binarySearch.search(aNeedle, aMappings, aComparator, aBias)
            }
            /**
             * Compute the last column for each generated mapping. The last column is
             * inclusive.
             */
  
            BasicSourceMapConsumer.prototype.computeColumnSpans = function SourceMapConsumer_computeColumnSpans() {
              for (
                var index = 0;
                index < this._generatedMappings.length;
                ++index
              ) {
                var mapping = this._generatedMappings[index] // Mappings do not contain a field for the last generated columnt. We
                // can come up with an optimistic estimate, however, by assuming that
                // mappings are contiguous (i.e. given two consecutive mappings, the
                // first mapping ends where the second one starts).
  
                if (index + 1 < this._generatedMappings.length) {
                  var nextMapping = this._generatedMappings[index + 1]
  
                  if (mapping.generatedLine === nextMapping.generatedLine) {
                    mapping.lastGeneratedColumn = nextMapping.generatedColumn - 1
                    continue
                  }
                } // The last mapping for each line spans the entire line.
  
                mapping.lastGeneratedColumn = Infinity
              }
            }
            /**
             * Returns the original source, line, and column information for the generated
             * source's line and column positions provided. The only argument is an object
             * with the following properties:
             *
             *   - line: The line number in the generated source.  The line number
             *     is 1-based.
             *   - column: The column number in the generated source.  The column
             *     number is 0-based.
             *   - bias: Either 'SourceMapConsumer.GREATEST_LOWER_BOUND' or
             *     'SourceMapConsumer.LEAST_UPPER_BOUND'. Specifies whether to return the
             *     closest element that is smaller than or greater than the one we are
             *     searching for, respectively, if the exact element cannot be found.
             *     Defaults to 'SourceMapConsumer.GREATEST_LOWER_BOUND'.
             *
             * and an object is returned with the following properties:
             *
             *   - source: The original source file, or null.
             *   - line: The line number in the original source, or null.  The
             *     line number is 1-based.
             *   - column: The column number in the original source, or null.  The
             *     column number is 0-based.
             *   - name: The original identifier, or null.
             */
  
            BasicSourceMapConsumer.prototype.originalPositionFor = function SourceMapConsumer_originalPositionFor(
              aArgs
            ) {
              var needle = {
                generatedLine: util.getArg(aArgs, 'line'),
                generatedColumn: util.getArg(aArgs, 'column'),
              }
  
              var index = this._findMapping(
                needle,
                this._generatedMappings,
                'generatedLine',
                'generatedColumn',
                util.compareByGeneratedPositionsDeflated,
                util.getArg(aArgs, 'bias', SourceMapConsumer.GREATEST_LOWER_BOUND)
              )
  
              if (index >= 0) {
                var mapping = this._generatedMappings[index]
  
                if (mapping.generatedLine === needle.generatedLine) {
                  var source = util.getArg(mapping, 'source', null)
  
                  if (source !== null) {
                    source = this._sources.at(source)
                    source = util.computeSourceURL(
                      this.sourceRoot,
                      source,
                      this._sourceMapURL
                    )
                  }
  
                  var name = util.getArg(mapping, 'name', null)
  
                  if (name !== null) {
                    name = this._names.at(name)
                  }
  
                  return {
                    source: source,
                    line: util.getArg(mapping, 'originalLine', null),
                    column: util.getArg(mapping, 'originalColumn', null),
                    name: name,
                  }
                }
              }
  
              return {
                source: null,
                line: null,
                column: null,
                name: null,
              }
            }
            /**
             * Return true if we have the source content for every source in the source
             * map, false otherwise.
             */
  
            BasicSourceMapConsumer.prototype.hasContentsOfAllSources = function BasicSourceMapConsumer_hasContentsOfAllSources() {
              if (!this.sourcesContent) {
                return false
              }
  
              return (
                this.sourcesContent.length >= this._sources.size() &&
                !this.sourcesContent.some(function (sc) {
                  return sc == null
                })
              )
            }
            /**
             * Returns the original source content. The only argument is the url of the
             * original source file. Returns null if no original source content is
             * available.
             */
  
            BasicSourceMapConsumer.prototype.sourceContentFor = function SourceMapConsumer_sourceContentFor(
              aSource,
              nullOnMissing
            ) {
              if (!this.sourcesContent) {
                return null
              }
  
              var index = this._findSourceIndex(aSource)
  
              if (index >= 0) {
                return this.sourcesContent[index]
              }
  
              var relativeSource = aSource
  
              if (this.sourceRoot != null) {
                relativeSource = util.relative(this.sourceRoot, relativeSource)
              }
  
              var url
  
              if (
                this.sourceRoot != null &&
                (url = util.urlParse(this.sourceRoot))
              ) {
                // XXX: file:// URIs and absolute paths lead to unexpected behavior for
                // many users. We can help them out when they expect file:// URIs to
                // behave like it would if they were running a local HTTP server. See
                // https://bugzilla.mozilla.org/show_bug.cgi?id=885597.
                var fileUriAbsPath = relativeSource.replace(/^file:\/\//, '')
  
                if (url.scheme == 'file' && this._sources.has(fileUriAbsPath)) {
                  return this.sourcesContent[
                    this._sources.indexOf(fileUriAbsPath)
                  ]
                }
  
                if (
                  (!url.path || url.path == '/') &&
                  this._sources.has('/' + relativeSource)
                ) {
                  return this.sourcesContent[
                    this._sources.indexOf('/' + relativeSource)
                  ]
                }
              } // This function is used recursively from
              // IndexedSourceMapConsumer.prototype.sourceContentFor. In that case, we
              // don't want to throw if we can't find the source - we just want to
              // return null, so we provide a flag to exit gracefully.
  
              if (nullOnMissing) {
                return null
              } else {
                throw new Error(
                  '"' + relativeSource + '" is not in the SourceMap.'
                )
              }
            }
            /**
             * Returns the generated line and column information for the original source,
             * line, and column positions provided. The only argument is an object with
             * the following properties:
             *
             *   - source: The filename of the original source.
             *   - line: The line number in the original source.  The line number
             *     is 1-based.
             *   - column: The column number in the original source.  The column
             *     number is 0-based.
             *   - bias: Either 'SourceMapConsumer.GREATEST_LOWER_BOUND' or
             *     'SourceMapConsumer.LEAST_UPPER_BOUND'. Specifies whether to return the
             *     closest element that is smaller than or greater than the one we are
             *     searching for, respectively, if the exact element cannot be found.
             *     Defaults to 'SourceMapConsumer.GREATEST_LOWER_BOUND'.
             *
             * and an object is returned with the following properties:
             *
             *   - line: The line number in the generated source, or null.  The
             *     line number is 1-based.
             *   - column: The column number in the generated source, or null.
             *     The column number is 0-based.
             */
  
            BasicSourceMapConsumer.prototype.generatedPositionFor = function SourceMapConsumer_generatedPositionFor(
              aArgs
            ) {
              var source = util.getArg(aArgs, 'source')
              source = this._findSourceIndex(source)
  
              if (source < 0) {
                return {
                  line: null,
                  column: null,
                  lastColumn: null,
                }
              }
  
              var needle = {
                source: source,
                originalLine: util.getArg(aArgs, 'line'),
                originalColumn: util.getArg(aArgs, 'column'),
              }
  
              var index = this._findMapping(
                needle,
                this._originalMappings,
                'originalLine',
                'originalColumn',
                util.compareByOriginalPositions,
                util.getArg(aArgs, 'bias', SourceMapConsumer.GREATEST_LOWER_BOUND)
              )
  
              if (index >= 0) {
                var mapping = this._originalMappings[index]
  
                if (mapping.source === needle.source) {
                  return {
                    line: util.getArg(mapping, 'generatedLine', null),
                    column: util.getArg(mapping, 'generatedColumn', null),
                    lastColumn: util.getArg(mapping, 'lastGeneratedColumn', null),
                  }
                }
              }
  
              return {
                line: null,
                column: null,
                lastColumn: null,
              }
            }
  
            __webpack_unused_export__ = BasicSourceMapConsumer
            /**
             * An IndexedSourceMapConsumer instance represents a parsed source map which
             * we can query for information. It differs from BasicSourceMapConsumer in
             * that it takes "indexed" source maps (i.e. ones with a "sections" field) as
             * input.
             *
             * The first parameter is a raw source map (either as a JSON string, or already
             * parsed to an object). According to the spec for indexed source maps, they
             * have the following attributes:
             *
             *   - version: Which version of the source map spec this map is following.
             *   - file: Optional. The generated file this source map is associated with.
             *   - sections: A list of section definitions.
             *
             * Each value under the "sections" field has two fields:
             *   - offset: The offset into the original specified at which this section
             *       begins to apply, defined as an object with a "line" and "column"
             *       field.
             *   - map: A source map definition. This source map could also be indexed,
             *       but doesn't have to be.
             *
             * Instead of the "map" field, it's also possible to have a "url" field
             * specifying a URL to retrieve a source map from, but that's currently
             * unsupported.
             *
             * Here's an example source map, taken from the source map spec[0], but
             * modified to omit a section which uses the "url" field.
             *
             *  {
             *    version : 3,
             *    file: "app.js",
             *    sections: [{
             *      offset: {line:100, column:10},
             *      map: {
             *        version : 3,
             *        file: "section.js",
             *        sources: ["foo.js", "bar.js"],
             *        names: ["src", "maps", "are", "fun"],
             *        mappings: "AAAA,E;;ABCDE;"
             *      }
             *    }],
             *  }
             *
             * The second parameter, if given, is a string whose value is the URL
             * at which the source map was found.  This URL is used to compute the
             * sources array.
             *
             * [0]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit#heading=h.535es3xeprgt
             */
  
            function IndexedSourceMapConsumer(aSourceMap, aSourceMapURL) {
              var sourceMap = aSourceMap
  
              if (typeof aSourceMap === 'string') {
                sourceMap = util.parseSourceMapInput(aSourceMap)
              }
  
              var version = util.getArg(sourceMap, 'version')
              var sections = util.getArg(sourceMap, 'sections')
  
              if (version != this._version) {
                throw new Error('Unsupported version: ' + version)
              }
  
              this._sources = new ArraySet()
              this._names = new ArraySet()
              var lastOffset = {
                line: -1,
                column: 0,
              }
              this._sections = sections.map(function (s) {
                if (s.url) {
                  // The url field will require support for asynchronicity.
                  // See https://github.com/mozilla/source-map/issues/16
                  throw new Error(
                    'Support for url field in sections not implemented.'
                  )
                }
  
                var offset = util.getArg(s, 'offset')
                var offsetLine = util.getArg(offset, 'line')
                var offsetColumn = util.getArg(offset, 'column')
  
                if (
                  offsetLine < lastOffset.line ||
                  (offsetLine === lastOffset.line &&
                    offsetColumn < lastOffset.column)
                ) {
                  throw new Error(
                    'Section offsets must be ordered and non-overlapping.'
                  )
                }
  
                lastOffset = offset
                return {
                  generatedOffset: {
                    // The offset fields are 0-based, but we use 1-based indices when
                    // encoding/decoding from VLQ.
                    generatedLine: offsetLine + 1,
                    generatedColumn: offsetColumn + 1,
                  },
                  consumer: new SourceMapConsumer(
                    util.getArg(s, 'map'),
                    aSourceMapURL
                  ),
                }
              })
            }
  
            IndexedSourceMapConsumer.prototype = Object.create(
              SourceMapConsumer.prototype
            )
            IndexedSourceMapConsumer.prototype.constructor = SourceMapConsumer
            /**
             * The version of the source mapping spec that we are consuming.
             */
  
            IndexedSourceMapConsumer.prototype._version = 3
            /**
             * The list of original sources.
             */
  
            Object.defineProperty(IndexedSourceMapConsumer.prototype, 'sources', {
              get: function get() {
                var sources = []
  
                for (var i = 0; i < this._sections.length; i++) {
                  for (
                    var j = 0;
                    j < this._sections[i].consumer.sources.length;
                    j++
                  ) {
                    sources.push(this._sections[i].consumer.sources[j])
                  }
                }
  
                return sources
              },
            })
            /**
             * Returns the original source, line, and column information for the generated
             * source's line and column positions provided. The only argument is an object
             * with the following properties:
             *
             *   - line: The line number in the generated source.  The line number
             *     is 1-based.
             *   - column: The column number in the generated source.  The column
             *     number is 0-based.
             *
             * and an object is returned with the following properties:
             *
             *   - source: The original source file, or null.
             *   - line: The line number in the original source, or null.  The
             *     line number is 1-based.
             *   - column: The column number in the original source, or null.  The
             *     column number is 0-based.
             *   - name: The original identifier, or null.
             */
  
            IndexedSourceMapConsumer.prototype.originalPositionFor = function IndexedSourceMapConsumer_originalPositionFor(
              aArgs
            ) {
              var needle = {
                generatedLine: util.getArg(aArgs, 'line'),
                generatedColumn: util.getArg(aArgs, 'column'),
              } // Find the section containing the generated position we're trying to map
              // to an original position.
  
              var sectionIndex = binarySearch.search(
                needle,
                this._sections,
                function (needle, section) {
                  var cmp =
                    needle.generatedLine - section.generatedOffset.generatedLine
  
                  if (cmp) {
                    return cmp
                  }
  
                  return (
                    needle.generatedColumn -
                    section.generatedOffset.generatedColumn
                  )
                }
              )
              var section = this._sections[sectionIndex]
  
              if (!section) {
                return {
                  source: null,
                  line: null,
                  column: null,
                  name: null,
                }
              }
  
              return section.consumer.originalPositionFor({
                line:
                  needle.generatedLine -
                  (section.generatedOffset.generatedLine - 1),
                column:
                  needle.generatedColumn -
                  (section.generatedOffset.generatedLine === needle.generatedLine
                    ? section.generatedOffset.generatedColumn - 1
                    : 0),
                bias: aArgs.bias,
              })
            }
            /**
             * Return true if we have the source content for every source in the source
             * map, false otherwise.
             */
  
            IndexedSourceMapConsumer.prototype.hasContentsOfAllSources = function IndexedSourceMapConsumer_hasContentsOfAllSources() {
              return this._sections.every(function (s) {
                return s.consumer.hasContentsOfAllSources()
              })
            }
            /**
             * Returns the original source content. The only argument is the url of the
             * original source file. Returns null if no original source content is
             * available.
             */
  
            IndexedSourceMapConsumer.prototype.sourceContentFor = function IndexedSourceMapConsumer_sourceContentFor(
              aSource,
              nullOnMissing
            ) {
              for (var i = 0; i < this._sections.length; i++) {
                var section = this._sections[i]
                var content = section.consumer.sourceContentFor(aSource, true)
  
                if (content) {
                  return content
                }
              }
  
              if (nullOnMissing) {
                return null
              } else {
                throw new Error('"' + aSource + '" is not in the SourceMap.')
              }
            }
            /**
             * Returns the generated line and column information for the original source,
             * line, and column positions provided. The only argument is an object with
             * the following properties:
             *
             *   - source: The filename of the original source.
             *   - line: The line number in the original source.  The line number
             *     is 1-based.
             *   - column: The column number in the original source.  The column
             *     number is 0-based.
             *
             * and an object is returned with the following properties:
             *
             *   - line: The line number in the generated source, or null.  The
             *     line number is 1-based.
             *   - column: The column number in the generated source, or null.
             *     The column number is 0-based.
             */
  
            IndexedSourceMapConsumer.prototype.generatedPositionFor = function IndexedSourceMapConsumer_generatedPositionFor(
              aArgs
            ) {
              for (var i = 0; i < this._sections.length; i++) {
                var section = this._sections[i] // Only consider this section if the requested source is in the list of
                // sources of the consumer.
  
                if (
                  section.consumer._findSourceIndex(
                    util.getArg(aArgs, 'source')
                  ) === -1
                ) {
                  continue
                }
  
                var generatedPosition = section.consumer.generatedPositionFor(
                  aArgs
                )
  
                if (generatedPosition) {
                  var ret = {
                    line:
                      generatedPosition.line +
                      (section.generatedOffset.generatedLine - 1),
                    column:
                      generatedPosition.column +
                      (section.generatedOffset.generatedLine ===
                      generatedPosition.line
                        ? section.generatedOffset.generatedColumn - 1
                        : 0),
                  }
                  return ret
                }
              }
  
              return {
                line: null,
                column: null,
              }
            }
            /**
             * Parse the mappings in a string in to a data structure which we can easily
             * query (the ordered arrays in the `this.__generatedMappings` and
             * `this.__originalMappings` properties).
             */
  
            IndexedSourceMapConsumer.prototype._parseMappings = function IndexedSourceMapConsumer_parseMappings(
              aStr,
              aSourceRoot
            ) {
              this.__generatedMappings = []
              this.__originalMappings = []
  
              for (var i = 0; i < this._sections.length; i++) {
                var section = this._sections[i]
                var sectionMappings = section.consumer._generatedMappings
  
                for (var j = 0; j < sectionMappings.length; j++) {
                  var mapping = sectionMappings[j]
  
                  var source = section.consumer._sources.at(mapping.source)
  
                  source = util.computeSourceURL(
                    section.consumer.sourceRoot,
                    source,
                    this._sourceMapURL
                  )
  
                  this._sources.add(source)
  
                  source = this._sources.indexOf(source)
                  var name = null
  
                  if (mapping.name) {
                    name = section.consumer._names.at(mapping.name)
  
                    this._names.add(name)
  
                    name = this._names.indexOf(name)
                  } // The mappings coming from the consumer for the section have
                  // generated positions relative to the start of the section, so we
                  // need to offset them to be relative to the start of the concatenated
                  // generated file.
  
                  var adjustedMapping = {
                    source: source,
                    generatedLine:
                      mapping.generatedLine +
                      (section.generatedOffset.generatedLine - 1),
                    generatedColumn:
                      mapping.generatedColumn +
                      (section.generatedOffset.generatedLine ===
                      mapping.generatedLine
                        ? section.generatedOffset.generatedColumn - 1
                        : 0),
                    originalLine: mapping.originalLine,
                    originalColumn: mapping.originalColumn,
                    name: name,
                  }
  
                  this.__generatedMappings.push(adjustedMapping)
  
                  if (typeof adjustedMapping.originalLine === 'number') {
                    this.__originalMappings.push(adjustedMapping)
                  }
                }
              }
  
              quickSort(
                this.__generatedMappings,
                util.compareByGeneratedPositionsDeflated
              )
              quickSort(this.__originalMappings, util.compareByOriginalPositions)
            }
  
            __webpack_unused_export__ = IndexedSourceMapConsumer
            /***/
          },
  
        /***/
        341:
          /***/
          function _(__unused_webpack_module, exports, __webpack_require__) {
            /* -*- Mode: js; js-indent-level: 2; -*- */
  
            /*
             * Copyright 2011 Mozilla Foundation and contributors
             * Licensed under the New BSD license. See LICENSE or:
             * http://opensource.org/licenses/BSD-3-Clause
             */
            var base64VLQ = __webpack_require__(215)
  
            var util = __webpack_require__(983)
  
            var ArraySet =
              /* .ArraySet */
              __webpack_require__(837).I
  
            var MappingList =
              /* .MappingList */
              __webpack_require__(740).H
            /**
             * An instance of the SourceMapGenerator represents a source map which is
             * being built incrementally. You may pass an object with the following
             * properties:
             *
             *   - file: The filename of the generated source.
             *   - sourceRoot: A root for all relative URLs in this source map.
             */
  
            function SourceMapGenerator(aArgs) {
              if (!aArgs) {
                aArgs = {}
              }
  
              this._file = util.getArg(aArgs, 'file', null)
              this._sourceRoot = util.getArg(aArgs, 'sourceRoot', null)
              this._skipValidation = util.getArg(aArgs, 'skipValidation', false)
              this._sources = new ArraySet()
              this._names = new ArraySet()
              this._mappings = new MappingList()
              this._sourcesContents = null
            }
  
            SourceMapGenerator.prototype._version = 3
            /**
             * Creates a new SourceMapGenerator based on a SourceMapConsumer
             *
             * @param aSourceMapConsumer The SourceMap.
             */
  
            SourceMapGenerator.fromSourceMap = function SourceMapGenerator_fromSourceMap(
              aSourceMapConsumer
            ) {
              var sourceRoot = aSourceMapConsumer.sourceRoot
              var generator = new SourceMapGenerator({
                file: aSourceMapConsumer.file,
                sourceRoot: sourceRoot,
              })
              aSourceMapConsumer.eachMapping(function (mapping) {
                var newMapping = {
                  generated: {
                    line: mapping.generatedLine,
                    column: mapping.generatedColumn,
                  },
                }
  
                if (mapping.source != null) {
                  newMapping.source = mapping.source
  
                  if (sourceRoot != null) {
                    newMapping.source = util.relative(
                      sourceRoot,
                      newMapping.source
                    )
                  }
  
                  newMapping.original = {
                    line: mapping.originalLine,
                    column: mapping.originalColumn,
                  }
  
                  if (mapping.name != null) {
                    newMapping.name = mapping.name
                  }
                }
  
                generator.addMapping(newMapping)
              })
              aSourceMapConsumer.sources.forEach(function (sourceFile) {
                var sourceRelative = sourceFile
  
                if (sourceRoot !== null) {
                  sourceRelative = util.relative(sourceRoot, sourceFile)
                }
  
                if (!generator._sources.has(sourceRelative)) {
                  generator._sources.add(sourceRelative)
                }
  
                var content = aSourceMapConsumer.sourceContentFor(sourceFile)
  
                if (content != null) {
                  generator.setSourceContent(sourceFile, content)
                }
              })
              return generator
            }
            /**
             * Add a single mapping from original source line and column to the generated
             * source's line and column for this source map being created. The mapping
             * object should have the following properties:
             *
             *   - generated: An object with the generated line and column positions.
             *   - original: An object with the original line and column positions.
             *   - source: The original source file (relative to the sourceRoot).
             *   - name: An optional original token name for this mapping.
             */
  
            SourceMapGenerator.prototype.addMapping = function SourceMapGenerator_addMapping(
              aArgs
            ) {
              var generated = util.getArg(aArgs, 'generated')
              var original = util.getArg(aArgs, 'original', null)
              var source = util.getArg(aArgs, 'source', null)
              var name = util.getArg(aArgs, 'name', null)
  
              if (!this._skipValidation) {
                this._validateMapping(generated, original, source, name)
              }
  
              if (source != null) {
                source = String(source)
  
                if (!this._sources.has(source)) {
                  this._sources.add(source)
                }
              }
  
              if (name != null) {
                name = String(name)
  
                if (!this._names.has(name)) {
                  this._names.add(name)
                }
              }
  
              this._mappings.add({
                generatedLine: generated.line,
                generatedColumn: generated.column,
                originalLine: original != null && original.line,
                originalColumn: original != null && original.column,
                source: source,
                name: name,
              })
            }
            /**
             * Set the source content for a source file.
             */
  
            SourceMapGenerator.prototype.setSourceContent = function SourceMapGenerator_setSourceContent(
              aSourceFile,
              aSourceContent
            ) {
              var source = aSourceFile
  
              if (this._sourceRoot != null) {
                source = util.relative(this._sourceRoot, source)
              }
  
              if (aSourceContent != null) {
                // Add the source content to the _sourcesContents map.
                // Create a new _sourcesContents map if the property is null.
                if (!this._sourcesContents) {
                  this._sourcesContents = Object.create(null)
                }
  
                this._sourcesContents[util.toSetString(source)] = aSourceContent
              } else if (this._sourcesContents) {
                // Remove the source file from the _sourcesContents map.
                // If the _sourcesContents map is empty, set the property to null.
                delete this._sourcesContents[util.toSetString(source)]
  
                if (Object.keys(this._sourcesContents).length === 0) {
                  this._sourcesContents = null
                }
              }
            }
            /**
             * Applies the mappings of a sub-source-map for a specific source file to the
             * source map being generated. Each mapping to the supplied source file is
             * rewritten using the supplied source map. Note: The resolution for the
             * resulting mappings is the minimium of this map and the supplied map.
             *
             * @param aSourceMapConsumer The source map to be applied.
             * @param aSourceFile Optional. The filename of the source file.
             *        If omitted, SourceMapConsumer's file property will be used.
             * @param aSourceMapPath Optional. The dirname of the path to the source map
             *        to be applied. If relative, it is relative to the SourceMapConsumer.
             *        This parameter is needed when the two source maps aren't in the same
             *        directory, and the source map to be applied contains relative source
             *        paths. If so, those relative source paths need to be rewritten
             *        relative to the SourceMapGenerator.
             */
  
            SourceMapGenerator.prototype.applySourceMap = function SourceMapGenerator_applySourceMap(
              aSourceMapConsumer,
              aSourceFile,
              aSourceMapPath
            ) {
              var sourceFile = aSourceFile // If aSourceFile is omitted, we will use the file property of the SourceMap
  
              if (aSourceFile == null) {
                if (aSourceMapConsumer.file == null) {
                  throw new Error(
                    'SourceMapGenerator.prototype.applySourceMap requires either an explicit source file, ' +
                      'or the source map\'s "file" property. Both were omitted.'
                  )
                }
  
                sourceFile = aSourceMapConsumer.file
              }
  
              var sourceRoot = this._sourceRoot // Make "sourceFile" relative if an absolute Url is passed.
  
              if (sourceRoot != null) {
                sourceFile = util.relative(sourceRoot, sourceFile)
              } // Applying the SourceMap can add and remove items from the sources and
              // the names array.
  
              var newSources = new ArraySet()
              var newNames = new ArraySet() // Find mappings for the "sourceFile"
  
              this._mappings.unsortedForEach(function (mapping) {
                if (
                  mapping.source === sourceFile &&
                  mapping.originalLine != null
                ) {
                  // Check if it can be mapped by the source map, then update the mapping.
                  var original = aSourceMapConsumer.originalPositionFor({
                    line: mapping.originalLine,
                    column: mapping.originalColumn,
                  })
  
                  if (original.source != null) {
                    // Copy mapping
                    mapping.source = original.source
  
                    if (aSourceMapPath != null) {
                      mapping.source = util.join(aSourceMapPath, mapping.source)
                    }
  
                    if (sourceRoot != null) {
                      mapping.source = util.relative(sourceRoot, mapping.source)
                    }
  
                    mapping.originalLine = original.line
                    mapping.originalColumn = original.column
  
                    if (original.name != null) {
                      mapping.name = original.name
                    }
                  }
                }
  
                var source = mapping.source
  
                if (source != null && !newSources.has(source)) {
                  newSources.add(source)
                }
  
                var name = mapping.name
  
                if (name != null && !newNames.has(name)) {
                  newNames.add(name)
                }
              }, this)
  
              this._sources = newSources
              this._names = newNames // Copy sourcesContents of applied map.
  
              aSourceMapConsumer.sources.forEach(function (sourceFile) {
                var content = aSourceMapConsumer.sourceContentFor(sourceFile)
  
                if (content != null) {
                  if (aSourceMapPath != null) {
                    sourceFile = util.join(aSourceMapPath, sourceFile)
                  }
  
                  if (sourceRoot != null) {
                    sourceFile = util.relative(sourceRoot, sourceFile)
                  }
  
                  this.setSourceContent(sourceFile, content)
                }
              }, this)
            }
            /**
             * A mapping can have one of the three levels of data:
             *
             *   1. Just the generated position.
             *   2. The Generated position, original position, and original source.
             *   3. Generated and original position, original source, as well as a name
             *      token.
             *
             * To maintain consistency, we validate that any new mapping being added falls
             * in to one of these categories.
             */
  
            SourceMapGenerator.prototype._validateMapping = function SourceMapGenerator_validateMapping(
              aGenerated,
              aOriginal,
              aSource,
              aName
            ) {
              // When aOriginal is truthy but has empty values for .line and .column,
              // it is most likely a programmer error. In this case we throw a very
              // specific error message to try to guide them the right way.
              // For example: https://github.com/Polymer/polymer-bundler/pull/519
              if (
                aOriginal &&
                typeof aOriginal.line !== 'number' &&
                typeof aOriginal.column !== 'number'
              ) {
                throw new Error(
                  'original.line and original.column are not numbers -- you probably meant to omit ' +
                    'the original mapping entirely and only map the generated position. If so, pass ' +
                    'null for the original mapping instead of an object with empty or null values.'
                )
              }
  
              if (
                aGenerated &&
                'line' in aGenerated &&
                'column' in aGenerated &&
                aGenerated.line > 0 &&
                aGenerated.column >= 0 &&
                !aOriginal &&
                !aSource &&
                !aName
              ) {
                // Case 1.
                return
              } else if (
                aGenerated &&
                'line' in aGenerated &&
                'column' in aGenerated &&
                aOriginal &&
                'line' in aOriginal &&
                'column' in aOriginal &&
                aGenerated.line > 0 &&
                aGenerated.column >= 0 &&
                aOriginal.line > 0 &&
                aOriginal.column >= 0 &&
                aSource
              ) {
                // Cases 2 and 3.
                return
              } else {
                throw new Error(
                  'Invalid mapping: ' +
                    JSON.stringify({
                      generated: aGenerated,
                      source: aSource,
                      original: aOriginal,
                      name: aName,
                    })
                )
              }
            }
            /**
             * Serialize the accumulated mappings in to the stream of base 64 VLQs
             * specified by the source map format.
             */
  
            SourceMapGenerator.prototype._serializeMappings = function SourceMapGenerator_serializeMappings() {
              var previousGeneratedColumn = 0
              var previousGeneratedLine = 1
              var previousOriginalColumn = 0
              var previousOriginalLine = 0
              var previousName = 0
              var previousSource = 0
              var result = ''
              var next
              var mapping
              var nameIdx
              var sourceIdx
  
              var mappings = this._mappings.toArray()
  
              for (var i = 0, len = mappings.length; i < len; i++) {
                mapping = mappings[i]
                next = ''
  
                if (mapping.generatedLine !== previousGeneratedLine) {
                  previousGeneratedColumn = 0
  
                  while (mapping.generatedLine !== previousGeneratedLine) {
                    next += ';'
                    previousGeneratedLine++
                  }
                } else {
                  if (i > 0) {
                    if (
                      !util.compareByGeneratedPositionsInflated(
                        mapping,
                        mappings[i - 1]
                      )
                    ) {
                      continue
                    }
  
                    next += ','
                  }
                }
  
                next += base64VLQ.encode(
                  mapping.generatedColumn - previousGeneratedColumn
                )
                previousGeneratedColumn = mapping.generatedColumn
  
                if (mapping.source != null) {
                  sourceIdx = this._sources.indexOf(mapping.source)
                  next += base64VLQ.encode(sourceIdx - previousSource)
                  previousSource = sourceIdx // lines are stored 0-based in SourceMap spec version 3
  
                  next += base64VLQ.encode(
                    mapping.originalLine - 1 - previousOriginalLine
                  )
                  previousOriginalLine = mapping.originalLine - 1
                  next += base64VLQ.encode(
                    mapping.originalColumn - previousOriginalColumn
                  )
                  previousOriginalColumn = mapping.originalColumn
  
                  if (mapping.name != null) {
                    nameIdx = this._names.indexOf(mapping.name)
                    next += base64VLQ.encode(nameIdx - previousName)
                    previousName = nameIdx
                  }
                }
  
                result += next
              }
  
              return result
            }
  
            SourceMapGenerator.prototype._generateSourcesContent = function SourceMapGenerator_generateSourcesContent(
              aSources,
              aSourceRoot
            ) {
              return aSources.map(function (source) {
                if (!this._sourcesContents) {
                  return null
                }
  
                if (aSourceRoot != null) {
                  source = util.relative(aSourceRoot, source)
                }
  
                var key = util.toSetString(source)
                return Object.prototype.hasOwnProperty.call(
                  this._sourcesContents,
                  key
                )
                  ? this._sourcesContents[key]
                  : null
              }, this)
            }
            /**
             * Externalize the source map.
             */
  
            SourceMapGenerator.prototype.toJSON = function SourceMapGenerator_toJSON() {
              var map = {
                version: this._version,
                sources: this._sources.toArray(),
                names: this._names.toArray(),
                mappings: this._serializeMappings(),
              }
  
              if (this._file != null) {
                map.file = this._file
              }
  
              if (this._sourceRoot != null) {
                map.sourceRoot = this._sourceRoot
              }
  
              if (this._sourcesContents) {
                map.sourcesContent = this._generateSourcesContent(
                  map.sources,
                  map.sourceRoot
                )
              }
  
              return map
            }
            /**
             * Render the source map being generated to a string.
             */
  
            SourceMapGenerator.prototype.toString = function SourceMapGenerator_toString() {
              return JSON.stringify(this.toJSON())
            }
  
            exports.h = SourceMapGenerator
            /***/
          },
  
        /***/
        990:
          /***/
          function _(__unused_webpack_module, exports, __webpack_require__) {
            var __webpack_unused_export__
            /* -*- Mode: js; js-indent-level: 2; -*- */
  
            /*
             * Copyright 2011 Mozilla Foundation and contributors
             * Licensed under the New BSD license. See LICENSE or:
             * http://opensource.org/licenses/BSD-3-Clause
             */
  
            var SourceMapGenerator =
              /* .SourceMapGenerator */
              __webpack_require__(341).h
  
            var util = __webpack_require__(983) // Matches a Windows-style `\r\n` newline or a `\n` newline used by all other
            // operating systems these days (capturing the result).
  
            var REGEX_NEWLINE = /(\r?\n)/ // Newline character code for charCodeAt() comparisons
  
            var NEWLINE_CODE = 10 // Private symbol for identifying `SourceNode`s when multiple versions of
            // the source-map library are loaded. This MUST NOT CHANGE across
            // versions!
  
            var isSourceNode = '$$$isSourceNode$$$'
            /**
             * SourceNodes provide a way to abstract over interpolating/concatenating
             * snippets of generated JavaScript source code while maintaining the line and
             * column information associated with the original source code.
             *
             * @param aLine The original line number.
             * @param aColumn The original column number.
             * @param aSource The original source's filename.
             * @param aChunks Optional. An array of strings which are snippets of
             *        generated JS, or other SourceNodes.
             * @param aName The original identifier.
             */
  
            function SourceNode(aLine, aColumn, aSource, aChunks, aName) {
              this.children = []
              this.sourceContents = {}
              this.line = aLine == null ? null : aLine
              this.column = aColumn == null ? null : aColumn
              this.source = aSource == null ? null : aSource
              this.name = aName == null ? null : aName
              this[isSourceNode] = true
              if (aChunks != null) this.add(aChunks)
            }
            /**
             * Creates a SourceNode from generated code and a SourceMapConsumer.
             *
             * @param aGeneratedCode The generated code
             * @param aSourceMapConsumer The SourceMap for the generated code
             * @param aRelativePath Optional. The path that relative sources in the
             *        SourceMapConsumer should be relative to.
             */
  
            SourceNode.fromStringWithSourceMap = function SourceNode_fromStringWithSourceMap(
              aGeneratedCode,
              aSourceMapConsumer,
              aRelativePath
            ) {
              // The SourceNode we want to fill with the generated code
              // and the SourceMap
              var node = new SourceNode() // All even indices of this array are one line of the generated code,
              // while all odd indices are the newlines between two adjacent lines
              // (since `REGEX_NEWLINE` captures its match).
              // Processed fragments are accessed by calling `shiftNextLine`.
  
              var remainingLines = aGeneratedCode.split(REGEX_NEWLINE)
              var remainingLinesIndex = 0
  
              var shiftNextLine = function shiftNextLine() {
                var lineContents = getNextLine() // The last line of a file might not have a newline.
  
                var newLine = getNextLine() || ''
                return lineContents + newLine
  
                function getNextLine() {
                  return remainingLinesIndex < remainingLines.length
                    ? remainingLines[remainingLinesIndex++]
                    : undefined
                }
              } // We need to remember the position of "remainingLines"
  
              var lastGeneratedLine = 1,
                lastGeneratedColumn = 0 // The generate SourceNodes we need a code range.
              // To extract it current and last mapping is used.
              // Here we store the last mapping.
  
              var lastMapping = null
              aSourceMapConsumer.eachMapping(function (mapping) {
                if (lastMapping !== null) {
                  // We add the code from "lastMapping" to "mapping":
                  // First check if there is a new line in between.
                  if (lastGeneratedLine < mapping.generatedLine) {
                    // Associate first line with "lastMapping"
                    addMappingWithCode(lastMapping, shiftNextLine())
                    lastGeneratedLine++
                    lastGeneratedColumn = 0 // The remaining code is added without mapping
                  } else {
                    // There is no new line in between.
                    // Associate the code between "lastGeneratedColumn" and
                    // "mapping.generatedColumn" with "lastMapping"
                    var nextLine = remainingLines[remainingLinesIndex] || ''
                    var code = nextLine.substr(
                      0,
                      mapping.generatedColumn - lastGeneratedColumn
                    )
                    remainingLines[remainingLinesIndex] = nextLine.substr(
                      mapping.generatedColumn - lastGeneratedColumn
                    )
                    lastGeneratedColumn = mapping.generatedColumn
                    addMappingWithCode(lastMapping, code) // No more remaining code, continue
  
                    lastMapping = mapping
                    return
                  }
                } // We add the generated code until the first mapping
                // to the SourceNode without any mapping.
                // Each line is added as separate string.
  
                while (lastGeneratedLine < mapping.generatedLine) {
                  node.add(shiftNextLine())
                  lastGeneratedLine++
                }
  
                if (lastGeneratedColumn < mapping.generatedColumn) {
                  var nextLine = remainingLines[remainingLinesIndex] || ''
                  node.add(nextLine.substr(0, mapping.generatedColumn))
                  remainingLines[remainingLinesIndex] = nextLine.substr(
                    mapping.generatedColumn
                  )
                  lastGeneratedColumn = mapping.generatedColumn
                }
  
                lastMapping = mapping
              }, this) // We have processed all mappings.
  
              if (remainingLinesIndex < remainingLines.length) {
                if (lastMapping) {
                  // Associate the remaining code in the current line with "lastMapping"
                  addMappingWithCode(lastMapping, shiftNextLine())
                } // and add the remaining lines without any mapping
  
                node.add(remainingLines.splice(remainingLinesIndex).join(''))
              } // Copy sourcesContent into SourceNode
  
              aSourceMapConsumer.sources.forEach(function (sourceFile) {
                var content = aSourceMapConsumer.sourceContentFor(sourceFile)
  
                if (content != null) {
                  if (aRelativePath != null) {
                    sourceFile = util.join(aRelativePath, sourceFile)
                  }
  
                  node.setSourceContent(sourceFile, content)
                }
              })
              return node
  
              function addMappingWithCode(mapping, code) {
                if (mapping === null || mapping.source === undefined) {
                  node.add(code)
                } else {
                  var source = aRelativePath
                    ? util.join(aRelativePath, mapping.source)
                    : mapping.source
                  node.add(
                    new SourceNode(
                      mapping.originalLine,
                      mapping.originalColumn,
                      source,
                      code,
                      mapping.name
                    )
                  )
                }
              }
            }
            /**
             * Add a chunk of generated JS to this source node.
             *
             * @param aChunk A string snippet of generated JS code, another instance of
             *        SourceNode, or an array where each member is one of those things.
             */
  
            SourceNode.prototype.add = function SourceNode_add(aChunk) {
              if (Array.isArray(aChunk)) {
                aChunk.forEach(function (chunk) {
                  this.add(chunk)
                }, this)
              } else if (aChunk[isSourceNode] || typeof aChunk === 'string') {
                if (aChunk) {
                  this.children.push(aChunk)
                }
              } else {
                throw new TypeError(
                  'Expected a SourceNode, string, or an array of SourceNodes and strings. Got ' +
                    aChunk
                )
              }
  
              return this
            }
            /**
             * Add a chunk of generated JS to the beginning of this source node.
             *
             * @param aChunk A string snippet of generated JS code, another instance of
             *        SourceNode, or an array where each member is one of those things.
             */
  
            SourceNode.prototype.prepend = function SourceNode_prepend(aChunk) {
              if (Array.isArray(aChunk)) {
                for (var i = aChunk.length - 1; i >= 0; i--) {
                  this.prepend(aChunk[i])
                }
              } else if (aChunk[isSourceNode] || typeof aChunk === 'string') {
                this.children.unshift(aChunk)
              } else {
                throw new TypeError(
                  'Expected a SourceNode, string, or an array of SourceNodes and strings. Got ' +
                    aChunk
                )
              }
  
              return this
            }
            /**
             * Walk over the tree of JS snippets in this node and its children. The
             * walking function is called once for each snippet of JS and is passed that
             * snippet and the its original associated source's line/column location.
             *
             * @param aFn The traversal function.
             */
  
            SourceNode.prototype.walk = function SourceNode_walk(aFn) {
              var chunk
  
              for (var i = 0, len = this.children.length; i < len; i++) {
                chunk = this.children[i]
  
                if (chunk[isSourceNode]) {
                  chunk.walk(aFn)
                } else {
                  if (chunk !== '') {
                    aFn(chunk, {
                      source: this.source,
                      line: this.line,
                      column: this.column,
                      name: this.name,
                    })
                  }
                }
              }
            }
            /**
             * Like `String.prototype.join` except for SourceNodes. Inserts `aStr` between
             * each of `this.children`.
             *
             * @param aSep The separator.
             */
  
            SourceNode.prototype.join = function SourceNode_join(aSep) {
              var newChildren
              var i
              var len = this.children.length
  
              if (len > 0) {
                newChildren = []
  
                for (i = 0; i < len - 1; i++) {
                  newChildren.push(this.children[i])
                  newChildren.push(aSep)
                }
  
                newChildren.push(this.children[i])
                this.children = newChildren
              }
  
              return this
            }
            /**
             * Call String.prototype.replace on the very right-most source snippet. Useful
             * for trimming whitespace from the end of a source node, etc.
             *
             * @param aPattern The pattern to replace.
             * @param aReplacement The thing to replace the pattern with.
             */
  
            SourceNode.prototype.replaceRight = function SourceNode_replaceRight(
              aPattern,
              aReplacement
            ) {
              var lastChild = this.children[this.children.length - 1]
  
              if (lastChild[isSourceNode]) {
                lastChild.replaceRight(aPattern, aReplacement)
              } else if (typeof lastChild === 'string') {
                this.children[this.children.length - 1] = lastChild.replace(
                  aPattern,
                  aReplacement
                )
              } else {
                this.children.push(''.replace(aPattern, aReplacement))
              }
  
              return this
            }
            /**
             * Set the source content for a source file. This will be added to the SourceMapGenerator
             * in the sourcesContent field.
             *
             * @param aSourceFile The filename of the source file
             * @param aSourceContent The content of the source file
             */
  
            SourceNode.prototype.setSourceContent = function SourceNode_setSourceContent(
              aSourceFile,
              aSourceContent
            ) {
              this.sourceContents[util.toSetString(aSourceFile)] = aSourceContent
            }
            /**
             * Walk over the tree of SourceNodes. The walking function is called for each
             * source file content and is passed the filename and source content.
             *
             * @param aFn The traversal function.
             */
  
            SourceNode.prototype.walkSourceContents = function SourceNode_walkSourceContents(
              aFn
            ) {
              for (var i = 0, len = this.children.length; i < len; i++) {
                if (this.children[i][isSourceNode]) {
                  this.children[i].walkSourceContents(aFn)
                }
              }
  
              var sources = Object.keys(this.sourceContents)
  
              for (var i = 0, len = sources.length; i < len; i++) {
                aFn(
                  util.fromSetString(sources[i]),
                  this.sourceContents[sources[i]]
                )
              }
            }
            /**
             * Return the string representation of this source node. Walks over the tree
             * and concatenates all the various snippets together to one string.
             */
  
            SourceNode.prototype.toString = function SourceNode_toString() {
              var str = ''
              this.walk(function (chunk) {
                str += chunk
              })
              return str
            }
            /**
             * Returns the string representation of this source node along with a source
             * map.
             */
  
            SourceNode.prototype.toStringWithSourceMap = function SourceNode_toStringWithSourceMap(
              aArgs
            ) {
              var generated = {
                code: '',
                line: 1,
                column: 0,
              }
              var map = new SourceMapGenerator(aArgs)
              var sourceMappingActive = false
              var lastOriginalSource = null
              var lastOriginalLine = null
              var lastOriginalColumn = null
              var lastOriginalName = null
              this.walk(function (chunk, original) {
                generated.code += chunk
  
                if (
                  original.source !== null &&
                  original.line !== null &&
                  original.column !== null
                ) {
                  if (
                    lastOriginalSource !== original.source ||
                    lastOriginalLine !== original.line ||
                    lastOriginalColumn !== original.column ||
                    lastOriginalName !== original.name
                  ) {
                    map.addMapping({
                      source: original.source,
                      original: {
                        line: original.line,
                        column: original.column,
                      },
                      generated: {
                        line: generated.line,
                        column: generated.column,
                      },
                      name: original.name,
                    })
                  }
  
                  lastOriginalSource = original.source
                  lastOriginalLine = original.line
                  lastOriginalColumn = original.column
                  lastOriginalName = original.name
                  sourceMappingActive = true
                } else if (sourceMappingActive) {
                  map.addMapping({
                    generated: {
                      line: generated.line,
                      column: generated.column,
                    },
                  })
                  lastOriginalSource = null
                  sourceMappingActive = false
                }
  
                for (var idx = 0, length = chunk.length; idx < length; idx++) {
                  if (chunk.charCodeAt(idx) === NEWLINE_CODE) {
                    generated.line++
                    generated.column = 0 // Mappings end at eol
  
                    if (idx + 1 === length) {
                      lastOriginalSource = null
                      sourceMappingActive = false
                    } else if (sourceMappingActive) {
                      map.addMapping({
                        source: original.source,
                        original: {
                          line: original.line,
                          column: original.column,
                        },
                        generated: {
                          line: generated.line,
                          column: generated.column,
                        },
                        name: original.name,
                      })
                    }
                  } else {
                    generated.column++
                  }
                }
              })
              this.walkSourceContents(function (sourceFile, sourceContent) {
                map.setSourceContent(sourceFile, sourceContent)
              })
              return {
                code: generated.code,
                map: map,
              }
            }
  
            __webpack_unused_export__ = SourceNode
            /***/
          },
  
        /***/
        983:
          /***/
          function _(__unused_webpack_module, exports) {
            /* -*- Mode: js; js-indent-level: 2; -*- */
  
            /*
             * Copyright 2011 Mozilla Foundation and contributors
             * Licensed under the New BSD license. See LICENSE or:
             * http://opensource.org/licenses/BSD-3-Clause
             */
  
            /**
             * This is a helper function for getting values from parameter/options
             * objects.
             *
             * @param args The object we are extracting values from
             * @param name The name of the property we are getting.
             * @param defaultValue An optional value to return if the property is missing
             * from the object. If this is not specified and the property is missing, an
             * error will be thrown.
             */
            function getArg(aArgs, aName, aDefaultValue) {
              if (aName in aArgs) {
                return aArgs[aName]
              } else if (arguments.length === 3) {
                return aDefaultValue
              } else {
                throw new Error('"' + aName + '" is a required argument.')
              }
            }
  
            exports.getArg = getArg
            var urlRegexp = /^(?:([\w+\-.]+):)?\/\/(?:(\w+:\w+)@)?([\w.-]*)(?::(\d+))?(.*)$/
            var dataUrlRegexp = /^data:.+\,.+$/
  
            function urlParse(aUrl) {
              var match = aUrl.match(urlRegexp)
  
              if (!match) {
                return null
              }
  
              return {
                scheme: match[1],
                auth: match[2],
                host: match[3],
                port: match[4],
                path: match[5],
              }
            }
  
            exports.urlParse = urlParse
  
            function urlGenerate(aParsedUrl) {
              var url = ''
  
              if (aParsedUrl.scheme) {
                url += aParsedUrl.scheme + ':'
              }
  
              url += '//'
  
              if (aParsedUrl.auth) {
                url += aParsedUrl.auth + '@'
              }
  
              if (aParsedUrl.host) {
                url += aParsedUrl.host
              }
  
              if (aParsedUrl.port) {
                url += ':' + aParsedUrl.port
              }
  
              if (aParsedUrl.path) {
                url += aParsedUrl.path
              }
  
              return url
            }
  
            exports.urlGenerate = urlGenerate
            /**
             * Normalizes a path, or the path portion of a URL:
             *
             * - Replaces consecutive slashes with one slash.
             * - Removes unnecessary '.' parts.
             * - Removes unnecessary '<dir>/..' parts.
             *
             * Based on code in the Node.js 'path' core module.
             *
             * @param aPath The path or url to normalize.
             */
  
            function normalize(aPath) {
              var path = aPath
              var url = urlParse(aPath)
  
              if (url) {
                if (!url.path) {
                  return aPath
                }
  
                path = url.path
              }
  
              var isAbsolute = exports.isAbsolute(path)
              var parts = path.split(/\/+/)
  
              for (var part, up = 0, i = parts.length - 1; i >= 0; i--) {
                part = parts[i]
  
                if (part === '.') {
                  parts.splice(i, 1)
                } else if (part === '..') {
                  up++
                } else if (up > 0) {
                  if (part === '') {
                    // The first part is blank if the path is absolute. Trying to go
                    // above the root is a no-op. Therefore we can remove all '..' parts
                    // directly after the root.
                    parts.splice(i + 1, up)
                    up = 0
                  } else {
                    parts.splice(i, 2)
                    up--
                  }
                }
              }
  
              path = parts.join('/')
  
              if (path === '') {
                path = isAbsolute ? '/' : '.'
              }
  
              if (url) {
                url.path = path
                return urlGenerate(url)
              }
  
              return path
            }
  
            exports.normalize = normalize
            /**
             * Joins two paths/URLs.
             *
             * @param aRoot The root path or URL.
             * @param aPath The path or URL to be joined with the root.
             *
             * - If aPath is a URL or a data URI, aPath is returned, unless aPath is a
             *   scheme-relative URL: Then the scheme of aRoot, if any, is prepended
             *   first.
             * - Otherwise aPath is a path. If aRoot is a URL, then its path portion
             *   is updated with the result and aRoot is returned. Otherwise the result
             *   is returned.
             *   - If aPath is absolute, the result is aPath.
             *   - Otherwise the two paths are joined with a slash.
             * - Joining for example 'http://' and 'www.example.com' is also supported.
             */
  
            function join(aRoot, aPath) {
              if (aRoot === '') {
                aRoot = '.'
              }
  
              if (aPath === '') {
                aPath = '.'
              }
  
              var aPathUrl = urlParse(aPath)
              var aRootUrl = urlParse(aRoot)
  
              if (aRootUrl) {
                aRoot = aRootUrl.path || '/'
              } // `join(foo, '//www.example.org')`
  
              if (aPathUrl && !aPathUrl.scheme) {
                if (aRootUrl) {
                  aPathUrl.scheme = aRootUrl.scheme
                }
  
                return urlGenerate(aPathUrl)
              }
  
              if (aPathUrl || aPath.match(dataUrlRegexp)) {
                return aPath
              } // `join('http://', 'www.example.com')`
  
              if (aRootUrl && !aRootUrl.host && !aRootUrl.path) {
                aRootUrl.host = aPath
                return urlGenerate(aRootUrl)
              }
  
              var joined =
                aPath.charAt(0) === '/'
                  ? aPath
                  : normalize(aRoot.replace(/\/+$/, '') + '/' + aPath)
  
              if (aRootUrl) {
                aRootUrl.path = joined
                return urlGenerate(aRootUrl)
              }
  
              return joined
            }
  
            exports.join = join
  
            exports.isAbsolute = function (aPath) {
              return aPath.charAt(0) === '/' || urlRegexp.test(aPath)
            }
            /**
             * Make a path relative to a URL or another path.
             *
             * @param aRoot The root path or URL.
             * @param aPath The path or URL to be made relative to aRoot.
             */
  
            function relative(aRoot, aPath) {
              if (aRoot === '') {
                aRoot = '.'
              }
  
              aRoot = aRoot.replace(/\/$/, '') // It is possible for the path to be above the root. In this case, simply
              // checking whether the root is a prefix of the path won't work. Instead, we
              // need to remove components from the root one by one, until either we find
              // a prefix that fits, or we run out of components to remove.
  
              var level = 0
  
              while (aPath.indexOf(aRoot + '/') !== 0) {
                var index = aRoot.lastIndexOf('/')
  
                if (index < 0) {
                  return aPath
                } // If the only part of the root that is left is the scheme (i.e. http://,
                // file:///, etc.), one or more slashes (/), or simply nothing at all, we
                // have exhausted all components, so the path is not relative to the root.
  
                aRoot = aRoot.slice(0, index)
  
                if (aRoot.match(/^([^\/]+:\/)?\/*$/)) {
                  return aPath
                }
  
                ++level
              } // Make sure we add a "../" for each component we removed from the root.
  
              return Array(level + 1).join('../') + aPath.substr(aRoot.length + 1)
            }
  
            exports.relative = relative
  
            var supportsNullProto = (function () {
              var obj = Object.create(null)
              return !('__proto__' in obj)
            })()
  
            function identity(s) {
              return s
            }
            /**
             * Because behavior goes wacky when you set `__proto__` on objects, we
             * have to prefix all the strings in our set with an arbitrary character.
             *
             * See https://github.com/mozilla/source-map/pull/31 and
             * https://github.com/mozilla/source-map/issues/30
             *
             * @param String aStr
             */
  
            function toSetString(aStr) {
              if (isProtoString(aStr)) {
                return '$' + aStr
              }
  
              return aStr
            }
  
            exports.toSetString = supportsNullProto ? identity : toSetString
  
            function fromSetString(aStr) {
              if (isProtoString(aStr)) {
                return aStr.slice(1)
              }
  
              return aStr
            }
  
            exports.fromSetString = supportsNullProto ? identity : fromSetString
  
            function isProtoString(s) {
              if (!s) {
                return false
              }
  
              var length = s.length
  
              if (
                length < 9
                /* "__proto__".length */
              ) {
                return false
              }
  
              if (
                s.charCodeAt(length - 1) !== 95 ||
                /* '_' */
                s.charCodeAt(length - 2) !== 95 ||
                /* '_' */
                s.charCodeAt(length - 3) !== 111 ||
                /* 'o' */
                s.charCodeAt(length - 4) !== 116 ||
                /* 't' */
                s.charCodeAt(length - 5) !== 111 ||
                /* 'o' */
                s.charCodeAt(length - 6) !== 114 ||
                /* 'r' */
                s.charCodeAt(length - 7) !== 112 ||
                /* 'p' */
                s.charCodeAt(length - 8) !== 95 ||
                /* '_' */
                s.charCodeAt(length - 9) !== 95
                /* '_' */
              ) {
                return false
              }
  
              for (var i = length - 10; i >= 0; i--) {
                if (
                  s.charCodeAt(i) !== 36
                  /* '$' */
                ) {
                  return false
                }
              }
  
              return true
            }
            /**
             * Comparator between two mappings where the original positions are compared.
             *
             * Optionally pass in `true` as `onlyCompareGenerated` to consider two
             * mappings with the same original source/line/column, but different generated
             * line and column the same. Useful when searching for a mapping with a
             * stubbed out mapping.
             */
  
            function compareByOriginalPositions(
              mappingA,
              mappingB,
              onlyCompareOriginal
            ) {
              var cmp = strcmp(mappingA.source, mappingB.source)
  
              if (cmp !== 0) {
                return cmp
              }
  
              cmp = mappingA.originalLine - mappingB.originalLine
  
              if (cmp !== 0) {
                return cmp
              }
  
              cmp = mappingA.originalColumn - mappingB.originalColumn
  
              if (cmp !== 0 || onlyCompareOriginal) {
                return cmp
              }
  
              cmp = mappingA.generatedColumn - mappingB.generatedColumn
  
              if (cmp !== 0) {
                return cmp
              }
  
              cmp = mappingA.generatedLine - mappingB.generatedLine
  
              if (cmp !== 0) {
                return cmp
              }
  
              return strcmp(mappingA.name, mappingB.name)
            }
  
            exports.compareByOriginalPositions = compareByOriginalPositions
            /**
             * Comparator between two mappings with deflated source and name indices where
             * the generated positions are compared.
             *
             * Optionally pass in `true` as `onlyCompareGenerated` to consider two
             * mappings with the same generated line and column, but different
             * source/name/original line and column the same. Useful when searching for a
             * mapping with a stubbed out mapping.
             */
  
            function compareByGeneratedPositionsDeflated(
              mappingA,
              mappingB,
              onlyCompareGenerated
            ) {
              var cmp = mappingA.generatedLine - mappingB.generatedLine
  
              if (cmp !== 0) {
                return cmp
              }
  
              cmp = mappingA.generatedColumn - mappingB.generatedColumn
  
              if (cmp !== 0 || onlyCompareGenerated) {
                return cmp
              }
  
              cmp = strcmp(mappingA.source, mappingB.source)
  
              if (cmp !== 0) {
                return cmp
              }
  
              cmp = mappingA.originalLine - mappingB.originalLine
  
              if (cmp !== 0) {
                return cmp
              }
  
              cmp = mappingA.originalColumn - mappingB.originalColumn
  
              if (cmp !== 0) {
                return cmp
              }
  
              return strcmp(mappingA.name, mappingB.name)
            }
  
            exports.compareByGeneratedPositionsDeflated = compareByGeneratedPositionsDeflated
  
            function strcmp(aStr1, aStr2) {
              if (aStr1 === aStr2) {
                return 0
              }
  
              if (aStr1 === null) {
                return 1 // aStr2 !== null
              }
  
              if (aStr2 === null) {
                return -1 // aStr1 !== null
              }
  
              if (aStr1 > aStr2) {
                return 1
              }
  
              return -1
            }
            /**
             * Comparator between two mappings with inflated source and name strings where
             * the generated positions are compared.
             */
  
            function compareByGeneratedPositionsInflated(mappingA, mappingB) {
              var cmp = mappingA.generatedLine - mappingB.generatedLine
  
              if (cmp !== 0) {
                return cmp
              }
  
              cmp = mappingA.generatedColumn - mappingB.generatedColumn
  
              if (cmp !== 0) {
                return cmp
              }
  
              cmp = strcmp(mappingA.source, mappingB.source)
  
              if (cmp !== 0) {
                return cmp
              }
  
              cmp = mappingA.originalLine - mappingB.originalLine
  
              if (cmp !== 0) {
                return cmp
              }
  
              cmp = mappingA.originalColumn - mappingB.originalColumn
  
              if (cmp !== 0) {
                return cmp
              }
  
              return strcmp(mappingA.name, mappingB.name)
            }
  
            exports.compareByGeneratedPositionsInflated = compareByGeneratedPositionsInflated
            /**
             * Strip any JSON XSSI avoidance prefix from the string (as documented
             * in the source maps specification), and then parse the string as
             * JSON.
             */
  
            function parseSourceMapInput(str) {
              return JSON.parse(str.replace(/^\)]}'[^\n]*\n/, ''))
            }
  
            exports.parseSourceMapInput = parseSourceMapInput
            /**
             * Compute the URL of a source given the the source root, the source's
             * URL, and the source map's URL.
             */
  
            function computeSourceURL(sourceRoot, sourceURL, sourceMapURL) {
              sourceURL = sourceURL || ''
  
              if (sourceRoot) {
                // This follows what Chrome does.
                if (
                  sourceRoot[sourceRoot.length - 1] !== '/' &&
                  sourceURL[0] !== '/'
                ) {
                  sourceRoot += '/'
                } // The spec says:
                //   Line 4: An optional source root, useful for relocating source
                //   files on a server or removing repeated values in the
                //   “sources” entry.  This value is prepended to the individual
                //   entries in the “source” field.
  
                sourceURL = sourceRoot + sourceURL
              } // Historically, SourceMapConsumer did not take the sourceMapURL as
              // a parameter.  This mode is still somewhat supported, which is why
              // this code block is conditional.  However, it's preferable to pass
              // the source map URL to SourceMapConsumer, so that this function
              // can implement the source URL resolution algorithm as outlined in
              // the spec.  This block is basically the equivalent of:
              //    new URL(sourceURL, sourceMapURL).toString()
              // ... except it avoids using URL, which wasn't available in the
              // older releases of node still supported by this library.
              //
              // The spec says:
              //   If the sources are not absolute URLs after prepending of the
              //   “sourceRoot”, the sources are resolved relative to the
              //   SourceMap (like resolving script src in a html document).
  
              if (sourceMapURL) {
                var parsed = urlParse(sourceMapURL)
  
                if (!parsed) {
                  throw new Error('sourceMapURL could not be parsed')
                }
  
                if (parsed.path) {
                  // Strip the last path component, but keep the "/".
                  var index = parsed.path.lastIndexOf('/')
  
                  if (index >= 0) {
                    parsed.path = parsed.path.substring(0, index + 1)
                  }
                }
  
                sourceURL = join(urlGenerate(parsed), sourceURL)
              }
  
              return normalize(sourceURL)
            }
  
            exports.computeSourceURL = computeSourceURL
            /***/
          },
  
        /***/
        596:
          /***/
          function _(__unused_webpack_module, exports, __webpack_require__) {
            /*
             * Copyright 2009-2011 Mozilla Foundation and contributors
             * Licensed under the New BSD license. See LICENSE.txt or:
             * http://opensource.org/licenses/BSD-3-Clause
             */
  
            /* unused reexport */
            /* .SourceMapGenerator */
            __webpack_require__(341).h
            exports.SourceMapConsumer = __webpack_require__(327).SourceMapConsumer
            /* unused reexport */
  
            __webpack_require__(990)
            /***/
          },
  
        /***/
        747:
          /***/
          function _(module) {
            'use strict'
  
            module.exports = require('fs')
            /***/
          },
  
        /***/
        282:
          /***/
          function _(module) {
            'use strict'
  
            module.exports = require('module')
            /***/
          },
  
        /***/
        622:
          /***/
          function _(module) {
            'use strict'
  
            module.exports = require('path')
            /***/
          },
        /******/
      }
      /************************************************************************/
  
      /******/
      // The module cache
  
      /******/
  
      var __webpack_module_cache__ = {}
      /******/
  
      /******/
      // The require function
  
      /******/
  
      function __webpack_require__(moduleId) {
        /******/
        // Check if module is in cache
  
        /******/
        if (__webpack_module_cache__[moduleId]) {
          /******/
          return __webpack_module_cache__[moduleId].exports
          /******/
        }
        /******/
        // Create a new module (and put it into the cache)
  
        /******/
  
        var module = (__webpack_module_cache__[moduleId] = {
          /******/
          // no module.id needed
  
          /******/
          // no module.loaded needed
  
          /******/
          exports: {},
          /******/
        })
        /******/
  
        /******/
        // Execute the module function
  
        /******/
  
        var threw = true
        /******/
  
        try {
          /******/
          __webpack_modules__[moduleId](
            module,
            module.exports,
            __webpack_require__
          )
          /******/
  
          threw = false
          /******/
        } finally {
          /******/
          if (threw) delete __webpack_module_cache__[moduleId]
          /******/
        }
        /******/
  
        /******/
        // Return the exports of the module
  
        /******/
  
        return module.exports
        /******/
      }
      /******/
  
      /************************************************************************/
  
      /******/
  
      /* webpack/runtime/compat */
  
      /******/
  
      /******/
  
      __webpack_require__.ab = __dirname + '/'
      /************************************************************************/
  
      /******/
      // module exports must be returned from runtime so entry inlining is disabled
  
      /******/
      // startup
  
      /******/
      // Load entry module and return exports
  
      /******/
  
      return __webpack_require__(645)
      /******/
    })()
  