| (function webpackUniversalModuleDefinition(root, factory) { |
| if(typeof exports === 'object' && typeof module === 'object') |
| module.exports = factory(require("fs"), require("path")); |
| else if(typeof define === 'function' && define.amd) |
| define(["fs", "path"], factory); |
| else if(typeof exports === 'object') |
| exports["sourceMap"] = factory(require("fs"), require("path")); |
| else |
| root["sourceMap"] = factory(root["fs"], root["path"]); |
| })(typeof self !== 'undefined' ? self : this, function(__WEBPACK_EXTERNAL_MODULE_10__, __WEBPACK_EXTERNAL_MODULE_11__) { |
| 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] = { |
| /******/ i: moduleId, |
| /******/ l: false, |
| /******/ exports: {} |
| /******/ }; |
| /******/ |
| /******/ // Execute the module function |
| /******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__); |
| /******/ |
| /******/ // Flag the module as loaded |
| /******/ module.l = 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; |
| /******/ |
| /******/ // define getter function for harmony exports |
| /******/ __webpack_require__.d = function(exports, name, getter) { |
| /******/ if(!__webpack_require__.o(exports, name)) { |
| /******/ Object.defineProperty(exports, name, { |
| /******/ configurable: false, |
| /******/ enumerable: true, |
| /******/ get: getter |
| /******/ }); |
| /******/ } |
| /******/ }; |
| /******/ |
| /******/ // getDefaultExport function for compatibility with non-harmony modules |
| /******/ __webpack_require__.n = function(module) { |
| /******/ var getter = module && module.__esModule ? |
| /******/ function getDefault() { return module['default']; } : |
| /******/ function getModuleExports() { return module; }; |
| /******/ __webpack_require__.d(getter, 'a', getter); |
| /******/ return getter; |
| /******/ }; |
| /******/ |
| /******/ // Object.prototype.hasOwnProperty.call |
| /******/ __webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); }; |
| /******/ |
| /******/ // __webpack_public_path__ |
| /******/ __webpack_require__.p = ""; |
| /******/ |
| /******/ // Load entry module and return exports |
| /******/ return __webpack_require__(__webpack_require__.s = 5); |
| /******/ }) |
| /************************************************************************/ |
| /******/ ([ |
| /* 0 */ |
| /***/ (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; |
| } |
| throw new Error('"' + aName + '" is a required argument.'); |
| |
| } |
| exports.getArg = getArg; |
| |
| const urlRegexp = /^(?:([\w+\-.]+):)?\/\/(?:(\w+:\w+)@)?([\w.-]*)(?::(\d+))?(.*)$/; |
| const dataUrlRegexp = /^data:.+\,.+$/; |
| |
| function urlParse(aUrl) { |
| const 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) { |
| let 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; |
| |
| const MAX_CACHED_INPUTS = 32; |
| |
| /** |
| * Takes some function `f(input) -> result` and returns a memoized version of |
| * `f`. |
| * |
| * We keep at most `MAX_CACHED_INPUTS` memoized results of `f` alive. The |
| * memoization is a dumb-simple, linear least-recently-used cache. |
| */ |
| function lruMemoize(f) { |
| const cache = []; |
| |
| return function(input) { |
| for (let i = 0; i < cache.length; i++) { |
| if (cache[i].input === input) { |
| const temp = cache[0]; |
| cache[0] = cache[i]; |
| cache[i] = temp; |
| return cache[0].result; |
| } |
| } |
| |
| const result = f(input); |
| |
| cache.unshift({ |
| input, |
| result, |
| }); |
| |
| if (cache.length > MAX_CACHED_INPUTS) { |
| cache.pop(); |
| } |
| |
| return result; |
| }; |
| } |
| |
| /** |
| * 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. |
| */ |
| const normalize = lruMemoize(function normalize(aPath) { |
| let path = aPath; |
| const url = urlParse(aPath); |
| if (url) { |
| if (!url.path) { |
| return aPath; |
| } |
| path = url.path; |
| } |
| const isAbsolute = exports.isAbsolute(path); |
| |
| // Split the path into parts between `/` characters. This is much faster than |
| // using `.split(/\/+/g)`. |
| const parts = []; |
| let start = 0; |
| let i = 0; |
| while (true) { |
| start = i; |
| i = path.indexOf("/", start); |
| if (i === -1) { |
| parts.push(path.slice(start)); |
| break; |
| } else { |
| parts.push(path.slice(start, i)); |
| while (i < path.length && path[i] === "/") { |
| i++; |
| } |
| } |
| } |
| |
| let up = 0; |
| for (i = parts.length - 1; i >= 0; i--) { |
| const 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 = "."; |
| } |
| const aPathUrl = urlParse(aPath); |
| const 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); |
| } |
| |
| const 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. |
| let level = 0; |
| while (aPath.indexOf(aRoot + "/") !== 0) { |
| const 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(/^([^\/]+:\/)?\/*$/)) { |
| return aPath; |
| } |
| |
| ++level; |
| } |
| |
| // Make sure we add a "../" for each component we removed from the root. |
| return Array(level + 1).join("../") + aPath.substr(aRoot.length + 1); |
| } |
| exports.relative = relative; |
| |
| const supportsNullProto = (function() { |
| const obj = Object.create(null); |
| return !("__proto__" in obj); |
| }()); |
| |
| function identity(s) { |
| return s; |
| } |
| |
| /** |
| * Because behavior goes wacky when you set `__proto__` on objects, we |
| * have to prefix all the strings in our set with an arbitrary character. |
| * |
| * See https://github.com/mozilla/source-map/pull/31 and |
| * https://github.com/mozilla/source-map/issues/30 |
| * |
| * @param String aStr |
| */ |
| function toSetString(aStr) { |
| if (isProtoString(aStr)) { |
| return "$" + 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; |
| } |
| |
| const length = s.length; |
| |
| if (length < 9 /* "__proto__".length */) { |
| return false; |
| } |
| |
| /* eslint-disable no-multi-spaces */ |
| 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; |
| } |
| /* eslint-enable no-multi-spaces */ |
| |
| for (let 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) { |
| let 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) { |
| let 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) { |
| let 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) { |
| const parsed = urlParse(sourceMapURL); |
| if (!parsed) { |
| throw new Error("sourceMapURL could not be parsed"); |
| } |
| if (parsed.path) { |
| // Strip the last path component, but keep the "/". |
| const 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; |
| |
| |
| /***/ }), |
| /* 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 |
| */ |
| |
| const base64VLQ = __webpack_require__(2); |
| const util = __webpack_require__(0); |
| const ArraySet = __webpack_require__(3).ArraySet; |
| const MappingList = __webpack_require__(7).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. |
| */ |
| class SourceMapGenerator { |
| constructor(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; |
| } |
| |
| /** |
| * Creates a new SourceMapGenerator based on a SourceMapConsumer |
| * |
| * @param aSourceMapConsumer The SourceMap. |
| */ |
| static fromSourceMap(aSourceMapConsumer) { |
| const sourceRoot = aSourceMapConsumer.sourceRoot; |
| const generator = new SourceMapGenerator({ |
| file: aSourceMapConsumer.file, |
| sourceRoot |
| }); |
| aSourceMapConsumer.eachMapping(function(mapping) { |
| const 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) { |
| let sourceRelative = sourceFile; |
| if (sourceRoot !== null) { |
| sourceRelative = util.relative(sourceRoot, sourceFile); |
| } |
| |
| if (!generator._sources.has(sourceRelative)) { |
| generator._sources.add(sourceRelative); |
| } |
| |
| const 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. |
| */ |
| addMapping(aArgs) { |
| const generated = util.getArg(aArgs, "generated"); |
| const original = util.getArg(aArgs, "original", null); |
| let source = util.getArg(aArgs, "source", null); |
| let 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, |
| name |
| }); |
| } |
| |
| /** |
| * Set the source content for a source file. |
| */ |
| setSourceContent(aSourceFile, aSourceContent) { |
| let 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. |
| */ |
| applySourceMap(aSourceMapConsumer, aSourceFile, aSourceMapPath) { |
| let 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; |
| } |
| const 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. |
| const newSources = this._mappings.toArray().length > 0 |
| ? new ArraySet() |
| : this._sources; |
| const 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. |
| const 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; |
| } |
| } |
| } |
| |
| const source = mapping.source; |
| if (source != null && !newSources.has(source)) { |
| newSources.add(source); |
| } |
| |
| const 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(srcFile) { |
| const content = aSourceMapConsumer.sourceContentFor(srcFile); |
| if (content != null) { |
| if (aSourceMapPath != null) { |
| srcFile = util.join(aSourceMapPath, srcFile); |
| } |
| if (sourceRoot != null) { |
| srcFile = util.relative(sourceRoot, srcFile); |
| } |
| this.setSourceContent(srcFile, 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. |
| */ |
| _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. |
| |
| } 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. |
| |
| } 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. |
| */ |
| _serializeMappings() { |
| let previousGeneratedColumn = 0; |
| let previousGeneratedLine = 1; |
| let previousOriginalColumn = 0; |
| let previousOriginalLine = 0; |
| let previousName = 0; |
| let previousSource = 0; |
| let result = ""; |
| let next; |
| let mapping; |
| let nameIdx; |
| let sourceIdx; |
| |
| const mappings = this._mappings.toArray(); |
| for (let 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; |
| } |
| |
| _generateSourcesContent(aSources, aSourceRoot) { |
| return aSources.map(function(source) { |
| if (!this._sourcesContents) { |
| return null; |
| } |
| if (aSourceRoot != null) { |
| source = util.relative(aSourceRoot, source); |
| } |
| const key = util.toSetString(source); |
| return Object.prototype.hasOwnProperty.call(this._sourcesContents, key) |
| ? this._sourcesContents[key] |
| : null; |
| }, this); |
| } |
| |
| /** |
| * Externalize the source map. |
| */ |
| toJSON() { |
| const 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. |
| */ |
| toString() { |
| return JSON.stringify(this.toJSON()); |
| } |
| } |
| |
| SourceMapGenerator.prototype._version = 3; |
| 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. |
| */ |
| |
| const base64 = __webpack_require__(6); |
| |
| // 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 |
| |
| const VLQ_BASE_SHIFT = 5; |
| |
| // binary: 100000 |
| const VLQ_BASE = 1 << VLQ_BASE_SHIFT; |
| |
| // binary: 011111 |
| const VLQ_BASE_MASK = VLQ_BASE - 1; |
| |
| // binary: 100000 |
| const 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 |
| */ |
| // eslint-disable-next-line no-unused-vars |
| function fromVLQSigned(aValue) { |
| const isNegative = (aValue & 1) === 1; |
| const shifted = aValue >> 1; |
| return isNegative |
| ? -shifted |
| : shifted; |
| } |
| |
| /** |
| * Returns the base 64 VLQ encoded value. |
| */ |
| exports.encode = function base64VLQ_encode(aValue) { |
| let encoded = ""; |
| let digit; |
| |
| let 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; |
| }; |
| |
| |
| /***/ }), |
| /* 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 |
| */ |
| |
| /** |
| * 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. |
| */ |
| class ArraySet { |
| constructor() { |
| this._array = []; |
| this._set = new Map(); |
| } |
| |
| /** |
| * Static method for creating ArraySet instances from an existing array. |
| */ |
| static fromArray(aArray, aAllowDuplicates) { |
| const set = new ArraySet(); |
| for (let 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 |
| */ |
| size() { |
| return this._set.size; |
| } |
| |
| /** |
| * Add the given string to this set. |
| * |
| * @param String aStr |
| */ |
| add(aStr, aAllowDuplicates) { |
| const isDuplicate = this.has(aStr); |
| const idx = this._array.length; |
| if (!isDuplicate || aAllowDuplicates) { |
| this._array.push(aStr); |
| } |
| if (!isDuplicate) { |
| this._set.set(aStr, idx); |
| } |
| } |
| |
| /** |
| * Is the given string a member of this set? |
| * |
| * @param String aStr |
| */ |
| has(aStr) { |
| return this._set.has(aStr); |
| } |
| |
| /** |
| * What is the index of the given string in the array? |
| * |
| * @param String aStr |
| */ |
| indexOf(aStr) { |
| const idx = this._set.get(aStr); |
| if (idx >= 0) { |
| return idx; |
| } |
| throw new Error('"' + aStr + '" is not in the set.'); |
| } |
| |
| /** |
| * What is the element at the given index? |
| * |
| * @param Number aIdx |
| */ |
| 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. |
| */ |
| toArray() { |
| return this._array.slice(); |
| } |
| } |
| exports.ArraySet = ArraySet; |
| |
| |
| /***/ }), |
| /* 4 */ |
| /***/ (function(module, exports, __webpack_require__) { |
| |
| /* WEBPACK VAR INJECTION */(function(__dirname) {if (typeof fetch === "function") { |
| // Web version of reading a wasm file into an array buffer. |
| |
| let mappingsWasmUrl = null; |
| |
| module.exports = function readWasm() { |
| if (typeof mappingsWasmUrl !== "string") { |
| throw new Error("You must provide the URL of lib/mappings.wasm by calling " + |
| "SourceMapConsumer.initialize({ 'lib/mappings.wasm': ... }) " + |
| "before using SourceMapConsumer"); |
| } |
| |
| return fetch(mappingsWasmUrl) |
| .then(response => response.arrayBuffer()); |
| }; |
| |
| module.exports.initialize = url => mappingsWasmUrl = url; |
| } else { |
| // Node version of reading a wasm file into an array buffer. |
| const fs = __webpack_require__(10); |
| const path = __webpack_require__(11); |
| |
| module.exports = function readWasm() { |
| return new Promise((resolve, reject) => { |
| const wasmPath = path.join(__dirname, "mappings.wasm"); |
| fs.readFile(wasmPath, null, (error, data) => { |
| if (error) { |
| reject(error); |
| return; |
| } |
| |
| resolve(data.buffer); |
| }); |
| }); |
| }; |
| |
| module.exports.initialize = _ => { |
| console.debug("SourceMapConsumer.initialize is a no-op when running in node.js"); |
| }; |
| } |
| |
| /* WEBPACK VAR INJECTION */}.call(exports, "/")) |
| |
| /***/ }), |
| /* 5 */ |
| /***/ (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__(8).SourceMapConsumer; |
| exports.SourceNode = __webpack_require__(13).SourceNode; |
| |
| |
| /***/ }), |
| /* 6 */ |
| /***/ (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 |
| */ |
| |
| const 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); |
| }; |
| |
| |
| /***/ }), |
| /* 7 */ |
| /***/ (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 |
| */ |
| |
| const util = __webpack_require__(0); |
| |
| /** |
| * Determine whether mappingB is after mappingA with respect to generated |
| * position. |
| */ |
| function generatedPositionAfter(mappingA, mappingB) { |
| // Optimized for most common case |
| const lineA = mappingA.generatedLine; |
| const lineB = mappingB.generatedLine; |
| const columnA = mappingA.generatedColumn; |
| const 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 negligible overhead in general |
| * case for a large speedup in case of mappings being added in order. |
| */ |
| class MappingList { |
| constructor() { |
| 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. |
| */ |
| unsortedForEach(aCallback, aThisArg) { |
| this._array.forEach(aCallback, aThisArg); |
| } |
| |
| /** |
| * Add the given source mapping. |
| * |
| * @param Object aMapping |
| */ |
| 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. |
| */ |
| toArray() { |
| if (!this._sorted) { |
| this._array.sort(util.compareByGeneratedPositionsInflated); |
| this._sorted = true; |
| } |
| return this._array; |
| } |
| } |
| |
| exports.MappingList = MappingList; |
| |
| |
| /***/ }), |
| /* 8 */ |
| /***/ (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 |
| */ |
| |
| const util = __webpack_require__(0); |
| const binarySearch = __webpack_require__(9); |
| const ArraySet = __webpack_require__(3).ArraySet; |
| const base64VLQ = __webpack_require__(2); // eslint-disable-line no-unused-vars |
| const readWasm = __webpack_require__(4); |
| const wasm = __webpack_require__(12); |
| |
| const INTERNAL = Symbol("smcInternal"); |
| |
| class SourceMapConsumer { |
| constructor(aSourceMap, aSourceMapURL) { |
| // If the constructor was called by super(), just return Promise<this>. |
| // Yes, this is a hack to retain the pre-existing API of the base-class |
| // constructor also being an async factory function. |
| if (aSourceMap == INTERNAL) { |
| return Promise.resolve(this); |
| } |
| |
| return _factory(aSourceMap, aSourceMapURL); |
| } |
| |
| static initialize(opts) { |
| readWasm.initialize(opts["lib/mappings.wasm"]); |
| } |
| |
| static fromSourceMap(aSourceMap, aSourceMapURL) { |
| return _factoryBSM(aSourceMap, aSourceMapURL); |
| } |
| |
| /** |
| * Construct a new `SourceMapConsumer` from `rawSourceMap` and `sourceMapUrl` |
| * (see the `SourceMapConsumer` constructor for details. Then, invoke the `async |
| * function f(SourceMapConsumer) -> T` with the newly constructed consumer, wait |
| * for `f` to complete, call `destroy` on the consumer, and return `f`'s return |
| * value. |
| * |
| * You must not use the consumer after `f` completes! |
| * |
| * By using `with`, you do not have to remember to manually call `destroy` on |
| * the consumer, since it will be called automatically once `f` completes. |
| * |
| * ```js |
| * const xSquared = await SourceMapConsumer.with( |
| * myRawSourceMap, |
| * null, |
| * async function (consumer) { |
| * // Use `consumer` inside here and don't worry about remembering |
| * // to call `destroy`. |
| * |
| * const x = await whatever(consumer); |
| * return x * x; |
| * } |
| * ); |
| * |
| * // You may not use that `consumer` anymore out here; it has |
| * // been destroyed. But you can use `xSquared`. |
| * console.log(xSquared); |
| * ``` |
| */ |
| static with(rawSourceMap, sourceMapUrl, f) { |
| // Note: The `acorn` version that `webpack` currently depends on doesn't |
| // support `async` functions, and the nodes that we support don't all have |
| // `.finally`. Therefore, this is written a bit more convolutedly than it |
| // should really be. |
| |
| let consumer = null; |
| const promise = new SourceMapConsumer(rawSourceMap, sourceMapUrl); |
| return promise |
| .then(c => { |
| consumer = c; |
| return f(c); |
| }) |
| .then(x => { |
| if (consumer) { |
| consumer.destroy(); |
| } |
| return x; |
| }, e => { |
| if (consumer) { |
| consumer.destroy(); |
| } |
| throw e; |
| }); |
| } |
| |
| /** |
| * 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). |
| */ |
| _parseMappings(aStr, aSourceRoot) { |
| throw new Error("Subclasses must implement _parseMappings"); |
| } |
| |
| /** |
| * 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`. |
| */ |
| eachMapping(aCallback, aContext, aOrder) { |
| throw new Error("Subclasses must implement eachMapping"); |
| } |
| |
| /** |
| * 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. |
| */ |
| allGeneratedPositionsFor(aArgs) { |
| throw new Error("Subclasses must implement allGeneratedPositionsFor"); |
| } |
| |
| destroy() { |
| throw new Error("Subclasses must implement destroy"); |
| } |
| } |
| |
| /** |
| * The version of the source mapping spec that we are consuming. |
| */ |
| SourceMapConsumer.prototype._version = 3; |
| SourceMapConsumer.GENERATED_ORDER = 1; |
| SourceMapConsumer.ORIGINAL_ORDER = 2; |
| |
| SourceMapConsumer.GREATEST_LOWER_BOUND = 1; |
| SourceMapConsumer.LEAST_UPPER_BOUND = 2; |
| |
| 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 referenced 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# |
| */ |
| class BasicSourceMapConsumer extends SourceMapConsumer { |
| constructor(aSourceMap, aSourceMapURL) { |
| return super(INTERNAL).then(that => { |
| let sourceMap = aSourceMap; |
| if (typeof aSourceMap === "string") { |
| sourceMap = util.parseSourceMapInput(aSourceMap); |
| } |
| |
| const version = util.getArg(sourceMap, "version"); |
| let 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. |
| const names = util.getArg(sourceMap, "names", []); |
| let sourceRoot = util.getArg(sourceMap, "sourceRoot", null); |
| const sourcesContent = util.getArg(sourceMap, "sourcesContent", null); |
| const mappings = util.getArg(sourceMap, "mappings"); |
| const 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 != that._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. |
| that._names = ArraySet.fromArray(names.map(String), true); |
| that._sources = ArraySet.fromArray(sources, true); |
| |
| that._absoluteSources = that._sources.toArray().map(function(s) { |
| return util.computeSourceURL(sourceRoot, s, aSourceMapURL); |
| }); |
| |
| that.sourceRoot = sourceRoot; |
| that.sourcesContent = sourcesContent; |
| that._mappings = mappings; |
| that._sourceMapURL = aSourceMapURL; |
| that.file = file; |
| |
| that._computedColumnSpans = false; |
| that._mappingsPtr = 0; |
| that._wasm = null; |
| |
| return wasm().then(w => { |
| that._wasm = w; |
| return that; |
| }); |
| }); |
| } |
| |
| /** |
| * Utility function to find the index of a source. Returns -1 if not |
| * found. |
| */ |
| _findSourceIndex(aSource) { |
| let 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. |
| for (let 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 |
| */ |
| static fromSourceMap(aSourceMap, aSourceMapURL) { |
| return new BasicSourceMapConsumer(aSourceMap.toString()); |
| } |
| |
| get sources() { |
| return this._absoluteSources.slice(); |
| } |
| |
| _getMappingsPtr() { |
| if (this._mappingsPtr === 0) { |
| this._parseMappings(this._mappings, this.sourceRoot); |
| } |
| |
| return this._mappingsPtr; |
| } |
| |
| /** |
| * 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). |
| */ |
| _parseMappings(aStr, aSourceRoot) { |
| const size = aStr.length; |
| |
| const mappingsBufPtr = this._wasm.exports.allocate_mappings(size); |
| const mappingsBuf = new Uint8Array(this._wasm.exports.memory.buffer, mappingsBufPtr, size); |
| for (let i = 0; i < size; i++) { |
| mappingsBuf[i] = aStr.charCodeAt(i); |
| } |
| |
| const mappingsPtr = this._wasm.exports.parse_mappings(mappingsBufPtr); |
| |
| if (!mappingsPtr) { |
| const error = this._wasm.exports.get_last_error(); |
| let msg = `Error parsing mappings (code ${error}): `; |
| |
| // XXX: keep these error codes in sync with `fitzgen/source-map-mappings`. |
| switch (error) { |
| case 1: |
| msg += "the mappings contained a negative line, column, source index, or name index"; |
| break; |
| case 2: |
| msg += "the mappings contained a number larger than 2**32"; |
| break; |
| case 3: |
| msg += "reached EOF while in the middle of parsing a VLQ"; |
| break; |
| case 4: |
| msg += "invalid base 64 character while parsing a VLQ"; |
| break; |
| default: |
| msg += "unknown error code"; |
| break; |
| } |
| |
| throw new Error(msg); |
| } |
| |
| this._mappingsPtr = mappingsPtr; |
| } |
| |
| eachMapping(aCallback, aContext, aOrder) { |
| const context = aContext || null; |
| const order = aOrder || SourceMapConsumer.GENERATED_ORDER; |
| const sourceRoot = this.sourceRoot; |
| |
| this._wasm.withMappingCallback( |
| mapping => { |
| if (mapping.source !== null) { |
| mapping.source = this._sources.at(mapping.source); |
| mapping.source = util.computeSourceURL(sourceRoot, mapping.source, this._sourceMapURL); |
| |
| if (mapping.name !== null) { |
| mapping.name = this._names.at(mapping.name); |
| } |
| } |
| |
| aCallback.call(context, mapping); |
| }, |
| () => { |
| switch (order) { |
| case SourceMapConsumer.GENERATED_ORDER: |
| this._wasm.exports.by_generated_location(this._getMappingsPtr()); |
| break; |
| case SourceMapConsumer.ORIGINAL_ORDER: |
| this._wasm.exports.by_original_location(this._getMappingsPtr()); |
| break; |
| default: |
| throw new Error("Unknown order of iteration."); |
| } |
| } |
| ); |
| } |
| |
| allGeneratedPositionsFor(aArgs) { |
| let source = util.getArg(aArgs, "source"); |
| const originalLine = util.getArg(aArgs, "line"); |
| const originalColumn = aArgs.column || 0; |
| |
| source = this._findSourceIndex(source); |
| if (source < 0) { |
| return []; |
| } |
| |
| if (originalLine < 1) { |
| throw new Error("Line numbers must be >= 1"); |
| } |
| |
| if (originalColumn < 0) { |
| throw new Error("Column numbers must be >= 0"); |
| } |
| |
| const mappings = []; |
| |
| this._wasm.withMappingCallback( |
| m => { |
| let lastColumn = m.lastGeneratedColumn; |
| if (this._computedColumnSpans && lastColumn === null) { |
| lastColumn = Infinity; |
| } |
| mappings.push({ |
| line: m.generatedLine, |
| column: m.generatedColumn, |
| lastColumn, |
| }); |
| }, () => { |
| this._wasm.exports.all_generated_locations_for( |
| this._getMappingsPtr(), |
| source, |
| originalLine - 1, |
| "column" in aArgs, |
| originalColumn |
| ); |
| } |
| ); |
| |
| return mappings; |
| } |
| |
| destroy() { |
| if (this._mappingsPtr !== 0) { |
| this._wasm.exports.free_mappings(this._mappingsPtr); |
| this._mappingsPtr = 0; |
| } |
| } |
| |
| /** |
| * Compute the last column for each generated mapping. The last column is |
| * inclusive. |
| */ |
| computeColumnSpans() { |
| if (this._computedColumnSpans) { |
| return; |
| } |
| |
| this._wasm.exports.compute_column_spans(this._getMappingsPtr()); |
| this._computedColumnSpans = true; |
| } |
| |
| /** |
| * 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. |
| */ |
| originalPositionFor(aArgs) { |
| const needle = { |
| generatedLine: util.getArg(aArgs, "line"), |
| generatedColumn: util.getArg(aArgs, "column") |
| }; |
| |
| if (needle.generatedLine < 1) { |
| throw new Error("Line numbers must be >= 1"); |
| } |
| |
| if (needle.generatedColumn < 0) { |
| throw new Error("Column numbers must be >= 0"); |
| } |
| |
| let bias = util.getArg(aArgs, "bias", SourceMapConsumer.GREATEST_LOWER_BOUND); |
| if (bias == null) { |
| bias = SourceMapConsumer.GREATEST_LOWER_BOUND; |
| } |
| |
| let mapping; |
| this._wasm.withMappingCallback(m => mapping = m, () => { |
| this._wasm.exports.original_location_for( |
| this._getMappingsPtr(), |
| needle.generatedLine - 1, |
| needle.generatedColumn, |
| bias |
| ); |
| }); |
| |
| if (mapping) { |
| if (mapping.generatedLine === needle.generatedLine) { |
| let source = util.getArg(mapping, "source", null); |
| if (source !== null) { |
| source = this._sources.at(source); |
| source = util.computeSourceURL(this.sourceRoot, source, this._sourceMapURL); |
| } |
| |
| let name = util.getArg(mapping, "name", null); |
| if (name !== null) { |
| name = this._names.at(name); |
| } |
| |
| return { |
| source, |
| line: util.getArg(mapping, "originalLine", null), |
| column: util.getArg(mapping, "originalColumn", null), |
| 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. |
| */ |
| 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. |
| */ |
| sourceContentFor(aSource, nullOnMissing) { |
| if (!this.sourcesContent) { |
| return null; |
| } |
| |
| const index = this._findSourceIndex(aSource); |
| if (index >= 0) { |
| return this.sourcesContent[index]; |
| } |
| |
| let relativeSource = aSource; |
| if (this.sourceRoot != null) { |
| relativeSource = util.relative(this.sourceRoot, relativeSource); |
| } |
| |
| let 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. |
| const 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; |
| } |
| |
| 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. |
| */ |
| generatedPositionFor(aArgs) { |
| let source = util.getArg(aArgs, "source"); |
| source = this._findSourceIndex(source); |
| if (source < 0) { |
| return { |
| line: null, |
| column: null, |
| lastColumn: null |
| }; |
| } |
| |
| const needle = { |
| source, |
| originalLine: util.getArg(aArgs, "line"), |
| originalColumn: util.getArg(aArgs, "column") |
| }; |
| |
| if (needle.originalLine < 1) { |
| throw new Error("Line numbers must be >= 1"); |
| } |
| |
| if (needle.originalColumn < 0) { |
| throw new Error("Column numbers must be >= 0"); |
| } |
| |
| let bias = util.getArg(aArgs, "bias", SourceMapConsumer.GREATEST_LOWER_BOUND); |
| if (bias == null) { |
| bias = SourceMapConsumer.GREATEST_LOWER_BOUND; |
| } |
| |
| let mapping; |
| this._wasm.withMappingCallback(m => mapping = m, () => { |
| this._wasm.exports.generated_location_for( |
| this._getMappingsPtr(), |
| needle.source, |
| needle.originalLine - 1, |
| needle.originalColumn, |
| bias |
| ); |
| }); |
| |
| if (mapping) { |
| if (mapping.source === needle.source) { |
| let lastColumn = mapping.lastGeneratedColumn; |
| if (this._computedColumnSpans && lastColumn === null) { |
| lastColumn = Infinity; |
| } |
| return { |
| line: util.getArg(mapping, "generatedLine", null), |
| column: util.getArg(mapping, "generatedColumn", null), |
| lastColumn, |
| }; |
| } |
| } |
| |
| return { |
| line: null, |
| column: null, |
| lastColumn: null |
| }; |
| } |
| } |
| |
| BasicSourceMapConsumer.prototype.consumer = SourceMapConsumer; |
| 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 |
| */ |
| class IndexedSourceMapConsumer extends SourceMapConsumer { |
| constructor(aSourceMap, aSourceMapURL) { |
| return super(INTERNAL).then(that => { |
| let sourceMap = aSourceMap; |
| if (typeof aSourceMap === "string") { |
| sourceMap = util.parseSourceMapInput(aSourceMap); |
| } |
| |
| const version = util.getArg(sourceMap, "version"); |
| const sections = util.getArg(sourceMap, "sections"); |
| |
| if (version != that._version) { |
| throw new Error("Unsupported version: " + version); |
| } |
| |
| that._sources = new ArraySet(); |
| that._names = new ArraySet(); |
| that.__generatedMappings = null; |
| that.__originalMappings = null; |
| that.__generatedMappingsUnsorted = null; |
| that.__originalMappingsUnsorted = null; |
| |
| let lastOffset = { |
| line: -1, |
| column: 0 |
| }; |
| return Promise.all(sections.map(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."); |
| } |
| const offset = util.getArg(s, "offset"); |
| const offsetLine = util.getArg(offset, "line"); |
| const 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; |
| |
| const cons = new SourceMapConsumer(util.getArg(s, "map"), aSourceMapURL); |
| return cons.then(consumer => { |
| 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 |
| }; |
| }); |
| })).then(s => { |
| that._sections = s; |
| return that; |
| }); |
| }); |
| } |
| |
| // `__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. |
| get _generatedMappings() { |
| if (!this.__generatedMappings) { |
| this._sortGeneratedMappings(); |
| } |
| |
| return this.__generatedMappings; |
| } |
| |
| get _originalMappings() { |
| if (!this.__originalMappings) { |
| this._sortOriginalMappings(); |
| } |
| |
| return this.__originalMappings; |
| } |
| |
| get _generatedMappingsUnsorted() { |
| if (!this.__generatedMappingsUnsorted) { |
| this._parseMappings(this._mappings, this.sourceRoot); |
| } |
| |
| return this.__generatedMappingsUnsorted; |
| } |
| |
| get _originalMappingsUnsorted() { |
| if (!this.__originalMappingsUnsorted) { |
| this._parseMappings(this._mappings, this.sourceRoot); |
| } |
| |
| return this.__originalMappingsUnsorted; |
| } |
| |
| _sortGeneratedMappings() { |
| const mappings = this._generatedMappingsUnsorted; |
| mappings.sort(util.compareByGeneratedPositionsDeflated); |
| this.__generatedMappings = mappings; |
| } |
| |
| _sortOriginalMappings() { |
| const mappings = this._originalMappingsUnsorted; |
| mappings.sort(util.compareByOriginalPositions); |
| this.__originalMappings = mappings; |
| } |
| |
| /** |
| * The list of original sources. |
| */ |
| get sources() { |
| const sources = []; |
| for (let i = 0; i < this._sections.length; i++) { |
| for (let 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. |
| */ |
| originalPositionFor(aArgs) { |
| const 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. |
| const sectionIndex = binarySearch.search(needle, this._sections, |
| function(aNeedle, section) { |
| const cmp = aNeedle.generatedLine - section.generatedOffset.generatedLine; |
| if (cmp) { |
| return cmp; |
| } |
| |
| return (aNeedle.generatedColumn - |
| section.generatedOffset.generatedColumn); |
| }); |
| const 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. |
| */ |
| 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. |
| */ |
| sourceContentFor(aSource, nullOnMissing) { |
| for (let i = 0; i < this._sections.length; i++) { |
| const section = this._sections[i]; |
| |
| const content = section.consumer.sourceContentFor(aSource, true); |
| if (content) { |
| return content; |
| } |
| } |
| if (nullOnMissing) { |
| return null; |
| } |
| 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. |
| */ |
| generatedPositionFor(aArgs) { |
| for (let i = 0; i < this._sections.length; i++) { |
| const 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; |
| } |
| const generatedPosition = section.consumer.generatedPositionFor(aArgs); |
| if (generatedPosition) { |
| const 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). |
| */ |
| _parseMappings(aStr, aSourceRoot) { |
| const generatedMappings = this.__generatedMappingsUnsorted = []; |
| const originalMappings = this.__originalMappingsUnsorted = []; |
| for (let i = 0; i < this._sections.length; i++) { |
| const section = this._sections[i]; |
| |
| const sectionMappings = []; |
| section.consumer.eachMapping(m => sectionMappings.push(m)); |
| |
| for (let j = 0; j < sectionMappings.length; j++) { |
| const mapping = sectionMappings[j]; |
| |
| // TODO: test if null is correct here. The original code used |
| // `source`, which would actually have gotten used as null because |
| // var's get hoisted. |
| // See: https://github.com/mozilla/source-map/issues/333 |
| let source = util.computeSourceURL(section.consumer.sourceRoot, null, this._sourceMapURL); |
| this._sources.add(source); |
| source = this._sources.indexOf(source); |
| |
| let name = null; |
| if (mapping.name) { |
| this._names.add(mapping.name); |
| name = this._names.indexOf(mapping.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. |
| const adjustedMapping = { |
| 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 |
| }; |
| |
| generatedMappings.push(adjustedMapping); |
| if (typeof adjustedMapping.originalLine === "number") { |
| originalMappings.push(adjustedMapping); |
| } |
| } |
| } |
| } |
| |
| eachMapping(aCallback, aContext, aOrder) { |
| const context = aContext || null; |
| const order = aOrder || SourceMapConsumer.GENERATED_ORDER; |
| |
| let 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."); |
| } |
| |
| const sourceRoot = this.sourceRoot; |
| mappings.map(function(mapping) { |
| let source = null; |
| if (mapping.source !== null) { |
| source = this._sources.at(mapping.source); |
| source = util.computeSourceURL(sourceRoot, source, this._sourceMapURL); |
| } |
| return { |
| 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); |
| } |
| |
| /** |
| * Find the mapping that best matches the hypothetical "needle" mapping that |
| * we are searching for in the given "haystack" of mappings. |
| */ |
| _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); |
| } |
| |
| allGeneratedPositionsFor(aArgs) { |
| const 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. |
| const 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 []; |
| } |
| |
| if (needle.originalLine < 1) { |
| throw new Error("Line numbers must be >= 1"); |
| } |
| |
| if (needle.originalColumn < 0) { |
| throw new Error("Column numbers must be >= 0"); |
| } |
| |
| const mappings = []; |
| |
| let index = this._findMapping(needle, |
| this._originalMappings, |
| "originalLine", |
| "originalColumn", |
| util.compareByOriginalPositions, |
| binarySearch.LEAST_UPPER_BOUND); |
| if (index >= 0) { |
| let mapping = this._originalMappings[index]; |
| |
| if (aArgs.column === undefined) { |
| const 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) { |
| let lastColumn = mapping.lastGeneratedColumn; |
| if (this._computedColumnSpans && lastColumn === null) { |
| lastColumn = Infinity; |
| } |
| mappings.push({ |
| line: util.getArg(mapping, "generatedLine", null), |
| column: util.getArg(mapping, "generatedColumn", null), |
| lastColumn, |
| }); |
| |
| mapping = this._originalMappings[++index]; |
| } |
| } else { |
| const 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) { |
| let lastColumn = mapping.lastGeneratedColumn; |
| if (this._computedColumnSpans && lastColumn === null) { |
| lastColumn = Infinity; |
| } |
| mappings.push({ |
| line: util.getArg(mapping, "generatedLine", null), |
| column: util.getArg(mapping, "generatedColumn", null), |
| lastColumn, |
| }); |
| |
| mapping = this._originalMappings[++index]; |
| } |
| } |
| } |
| |
| return mappings; |
| } |
| |
| destroy() { |
| for (let i = 0; i < this._sections.length; i++) { |
| this._sections[i].consumer.destroy(); |
| } |
| } |
| } |
| exports.IndexedSourceMapConsumer = IndexedSourceMapConsumer; |
| |
| /* |
| * Cheat to get around inter-twingled classes. `factory()` can be at the end |
| * where it has access to non-hoisted classes, but it gets hoisted itself. |
| */ |
| function _factory(aSourceMap, aSourceMapURL) { |
| let sourceMap = aSourceMap; |
| if (typeof aSourceMap === "string") { |
| sourceMap = util.parseSourceMapInput(aSourceMap); |
| } |
| |
| const consumer = sourceMap.sections != null |
| ? new IndexedSourceMapConsumer(sourceMap, aSourceMapURL) |
| : new BasicSourceMapConsumer(sourceMap, aSourceMapURL); |
| return Promise.resolve(consumer); |
| } |
| |
| function _factoryBSM(aSourceMap, aSourceMapURL) { |
| return BasicSourceMapConsumer.fromSourceMap(aSourceMap, aSourceMapURL); |
| } |
| |
| |
| /***/ }), |
| /* 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 |
| */ |
| |
| 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. |
| const mid = Math.floor((aHigh - aLow) / 2) + aLow; |
| const 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; |
| } |
| return mid; |
| } |
| |
| // 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; |
| } |
| 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; |
| } |
| |
| let 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; |
| }; |
| |
| |
| /***/ }), |
| /* 10 */ |
| /***/ (function(module, exports) { |
| |
| module.exports = __WEBPACK_EXTERNAL_MODULE_10__; |
| |
| /***/ }), |
| /* 11 */ |
| /***/ (function(module, exports) { |
| |
| module.exports = __WEBPACK_EXTERNAL_MODULE_11__; |
| |
| /***/ }), |
| /* 12 */ |
| /***/ (function(module, exports, __webpack_require__) { |
| |
| const readWasm = __webpack_require__(4); |
| |
| /** |
| * Provide the JIT with a nice shape / hidden class. |
| */ |
| function Mapping() { |
| this.generatedLine = 0; |
| this.generatedColumn = 0; |
| this.lastGeneratedColumn = null; |
| this.source = null; |
| this.originalLine = null; |
| this.originalColumn = null; |
| this.name = null; |
| } |
| |
| let cachedWasm = null; |
| |
| module.exports = function wasm() { |
| if (cachedWasm) { |
| return cachedWasm; |
| } |
| |
| const callbackStack = []; |
| |
| cachedWasm = readWasm().then(buffer => { |
| return WebAssembly.instantiate(buffer, { |
| env: { |
| mapping_callback( |
| generatedLine, |
| generatedColumn, |
| |
| hasLastGeneratedColumn, |
| lastGeneratedColumn, |
| |
| hasOriginal, |
| source, |
| originalLine, |
| originalColumn, |
| |
| hasName, |
| name |
| ) { |
| const mapping = new Mapping(); |
| // JS uses 1-based line numbers, wasm uses 0-based. |
| mapping.generatedLine = generatedLine + 1; |
| mapping.generatedColumn = generatedColumn; |
| |
| if (hasLastGeneratedColumn) { |
| // JS uses inclusive last generated column, wasm uses exclusive. |
| mapping.lastGeneratedColumn = lastGeneratedColumn - 1; |
| } |
| |
| if (hasOriginal) { |
| mapping.source = source; |
| // JS uses 1-based line numbers, wasm uses 0-based. |
| mapping.originalLine = originalLine + 1; |
| mapping.originalColumn = originalColumn; |
| |
| if (hasName) { |
| mapping.name = name; |
| } |
| } |
| |
| callbackStack[callbackStack.length - 1](mapping); |
| }, |
| |
| start_all_generated_locations_for() { console.time("all_generated_locations_for"); }, |
| end_all_generated_locations_for() { console.timeEnd("all_generated_locations_for"); }, |
| |
| start_compute_column_spans() { console.time("compute_column_spans"); }, |
| end_compute_column_spans() { console.timeEnd("compute_column_spans"); }, |
| |
| start_generated_location_for() { console.time("generated_location_for"); }, |
| end_generated_location_for() { console.timeEnd("generated_location_for"); }, |
| |
| start_original_location_for() { console.time("original_location_for"); }, |
| end_original_location_for() { console.timeEnd("original_location_for"); }, |
| |
| start_parse_mappings() { console.time("parse_mappings"); }, |
| end_parse_mappings() { console.timeEnd("parse_mappings"); }, |
| |
| start_sort_by_generated_location() { console.time("sort_by_generated_location"); }, |
| end_sort_by_generated_location() { console.timeEnd("sort_by_generated_location"); }, |
| |
| start_sort_by_original_location() { console.time("sort_by_original_location"); }, |
| end_sort_by_original_location() { console.timeEnd("sort_by_original_location"); }, |
| } |
| }); |
| }).then(Wasm => { |
| return { |
| exports: Wasm.instance.exports, |
| withMappingCallback: (mappingCallback, f) => { |
| callbackStack.push(mappingCallback); |
| try { |
| f(); |
| } finally { |
| callbackStack.pop(); |
| } |
| } |
| }; |
| }).then(null, e => { |
| cachedWasm = null; |
| throw e; |
| }); |
| |
| return cachedWasm; |
| }; |
| |
| |
| /***/ }), |
| /* 13 */ |
| /***/ (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 |
| */ |
| |
| const SourceMapGenerator = __webpack_require__(1).SourceMapGenerator; |
| const util = __webpack_require__(0); |
| |
| // Matches a Windows-style `\r\n` newline or a `\n` newline used by all other |
| // operating systems these days (capturing the result). |
| const REGEX_NEWLINE = /(\r?\n)/; |
| |
| // Newline character code for charCodeAt() comparisons |
| const 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! |
| const 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. |
| */ |
| class SourceNode { |
| constructor(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. |
| */ |
| static fromStringWithSourceMap(aGeneratedCode, aSourceMapConsumer, aRelativePath) { |
| // The SourceNode we want to fill with the generated code |
| // and the SourceMap |
| const 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`. |
| const remainingLines = aGeneratedCode.split(REGEX_NEWLINE); |
| let remainingLinesIndex = 0; |
| const shiftNextLine = function() { |
| const lineContents = getNextLine(); |
| // The last line of a file might not have a newline. |
| const newLine = getNextLine() || ""; |
| return lineContents + newLine; |
| |
| function getNextLine() { |
| return remainingLinesIndex < remainingLines.length ? |
| remainingLines[remainingLinesIndex++] : undefined; |
| } |
| }; |
| |
| // We need to remember the position of "remainingLines" |
| let 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. |
| let lastMapping = null; |
| let nextLine; |
| |
| 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" |
| nextLine = remainingLines[remainingLinesIndex] || ""; |
| const 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) { |
| 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) { |
| const 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 { |
| const 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. |
| */ |
| 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. |
| */ |
| prepend(aChunk) { |
| if (Array.isArray(aChunk)) { |
| for (let 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. |
| */ |
| walk(aFn) { |
| let chunk; |
| for (let 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. |
| */ |
| join(aSep) { |
| let newChildren; |
| let i; |
| const 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. |
| */ |
| replaceRight(aPattern, aReplacement) { |
| const 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 |
| */ |
| 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. |
| */ |
| walkSourceContents(aFn) { |
| for (let i = 0, len = this.children.length; i < len; i++) { |
| if (this.children[i][isSourceNode]) { |
| this.children[i].walkSourceContents(aFn); |
| } |
| } |
| |
| const sources = Object.keys(this.sourceContents); |
| for (let 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. |
| */ |
| toString() { |
| let str = ""; |
| this.walk(function(chunk) { |
| str += chunk; |
| }); |
| return str; |
| } |
| |
| /** |
| * Returns the string representation of this source node along with a source |
| * map. |
| */ |
| toStringWithSourceMap(aArgs) { |
| const generated = { |
| code: "", |
| line: 1, |
| column: 0 |
| }; |
| const map = new SourceMapGenerator(aArgs); |
| let sourceMappingActive = false; |
| let lastOriginalSource = null; |
| let lastOriginalLine = null; |
| let lastOriginalColumn = null; |
| let 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 (let 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 }; |
| } |
| } |
| |
| exports.SourceNode = SourceNode; |
| |
| |
| /***/ }) |
| /******/ ]); |
| }); |