Actualizacion maquina principal
[dotfiles/.git] / .config / coc / extensions / node_modules / coc-prettier / node_modules / source-map / dist / source-map.js
diff --git a/.config/coc/extensions/node_modules/coc-prettier/node_modules/source-map/dist/source-map.js b/.config/coc/extensions/node_modules/coc-prettier/node_modules/source-map/dist/source-map.js
new file mode 100644 (file)
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+(function webpackUniversalModuleDefinition(root, factory) {
+       if(typeof exports === 'object' && typeof module === 'object')
+               module.exports = factory();
+       else if(typeof define === 'function' && define.amd)
+               define([], factory);
+       else if(typeof exports === 'object')
+               exports["sourceMap"] = factory();
+       else
+               root["sourceMap"] = factory();
+})(this, function() {
+return /******/ (function(modules) { // webpackBootstrap
+/******/       // The module cache
+/******/       var installedModules = {};
+
+/******/       // The require function
+/******/       function __webpack_require__(moduleId) {
+
+/******/               // Check if module is in cache
+/******/               if(installedModules[moduleId])
+/******/                       return installedModules[moduleId].exports;
+
+/******/               // Create a new module (and put it into the cache)
+/******/               var module = installedModules[moduleId] = {
+/******/                       exports: {},
+/******/                       id: moduleId,
+/******/                       loaded: false
+/******/               };
+
+/******/               // Execute the module function
+/******/               modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
+
+/******/               // Flag the module as loaded
+/******/               module.loaded = true;
+
+/******/               // Return the exports of the module
+/******/               return module.exports;
+/******/       }
+
+
+/******/       // expose the modules object (__webpack_modules__)
+/******/       __webpack_require__.m = modules;
+
+/******/       // expose the module cache
+/******/       __webpack_require__.c = installedModules;
+
+/******/       // __webpack_public_path__
+/******/       __webpack_require__.p = "";
+
+/******/       // Load entry module and return exports
+/******/       return __webpack_require__(0);
+/******/ })
+/************************************************************************/
+/******/ ([
+/* 0 */
+/***/ (function(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
+        */
+       exports.SourceMapGenerator = __webpack_require__(1).SourceMapGenerator;
+       exports.SourceMapConsumer = __webpack_require__(7).SourceMapConsumer;
+       exports.SourceNode = __webpack_require__(10).SourceNode;
+
+
+/***/ }),
+/* 1 */
+/***/ (function(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__(2);
+       var util = __webpack_require__(4);
+       var ArraySet = __webpack_require__(5).ArraySet;
+       var MappingList = __webpack_require__(6).MappingList;
+
+       /**
+        * 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.SourceMapGenerator = SourceMapGenerator;
+
+
+/***/ }),
+/* 2 */
+/***/ (function(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__(3);
+
+       // 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;
+       };
+
+
+/***/ }),
+/* 3 */
+/***/ (function(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;
+       };
+
+
+/***/ }),
+/* 4 */
+/***/ (function(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;
+
+
+/***/ }),
+/* 5 */
+/***/ (function(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__(4);
+       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.ArraySet = ArraySet;
+
+
+/***/ }),
+/* 6 */
+/***/ (function(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__(4);
+
+       /**
+        * 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.MappingList = MappingList;
+
+
+/***/ }),
+/* 7 */
+/***/ (function(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__(4);
+       var binarySearch = __webpack_require__(8);
+       var ArraySet = __webpack_require__(5).ArraySet;
+       var base64VLQ = __webpack_require__(2);
+       var quickSort = __webpack_require__(9).quickSort;
+
+       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 () {
+           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 () {
+           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 () {
+           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
+           };
+         };
+
+       exports.BasicSourceMapConsumer = 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 () {
+           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);
+         };
+
+       exports.IndexedSourceMapConsumer = IndexedSourceMapConsumer;
+
+
+/***/ }),
+/* 8 */
+/***/ (function(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;
+       };
+
+
+/***/ }),
+/* 9 */
+/***/ (function(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.quickSort = function (ary, comparator) {
+         doQuickSort(ary, comparator, 0, ary.length - 1);
+       };
+
+
+/***/ }),
+/* 10 */
+/***/ (function(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 SourceMapGenerator = __webpack_require__(1).SourceMapGenerator;
+       var util = __webpack_require__(4);
+
+       // 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() {
+             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 };
+       };
+
+       exports.SourceNode = SourceNode;
+
+
+/***/ })
+/******/ ])
+});
+;
\ No newline at end of file