Something went wrong. Try again.
[READ-ONLY] Mirror of https://github.com/flo-bit/shapecraft. flo-bit.dev/shapecraft
Something went wrong. Try again.
41 kB · 1145 lines
JavaScript
at commit da69385e
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778779780781782783784785786787788789790791792793794795796797798799800801802803804805806807808809810811812813814815816817818819820821822823824825826827828829830831832833834835836837838839840841842843844845846847848849850851852853854855856857858859860861862863864865866867868869870871872873874875876877878879880881882883884885886887888889890891892893894895896897898899900901902903904905906907908909910911912913914915916917918919920921922923924925926927928929930931932933934935936937938939940941942943944945946947948949950951952953954955956957958959960961962963964965966967968969970971972973974975976977978979980981982983984985986987988989990991992993994995996997998999100010011002100310041005100610071008100910101011101210131014101510161017101810191020102110221023102410251026102710281029103010311032103310341035103610371038103910401041104210431044104510461047104810491050105110521053105410551056105710581059106010611062106310641065106610671068106910701071107210731074107510761077107810791080108110821083108410851086108710881089109010911092109310941095109610971098109911001101110211031104110511061107110811091110111111121113111411151116111711181119112011211122112311241125112611271128112911301131113211331134113511361137113811391140114111421143114411451146/* -*- Mode: js; js-indent-level: 2; -*- *//* * Copyright 2011 Mozilla Foundation and contributors * Licensed under the New BSD license. See LICENSE or: * http://opensource.org/licenses/BSD-3-Clause */
var util = require('./util');var binarySearch = require('./binary-search');var ArraySet = require('./array-set').ArraySet;var base64VLQ = require('./base64-vlq');var quickSort = require('./quick-sort').quickSort;
function SourceMapConsumer(aSourceMap, aSourceMapURL) { var sourceMap = aSourceMap; if (typeof aSourceMap === 'string') { sourceMap = util.parseSourceMapInput(aSourceMap); }
return sourceMap.sections != null ? new IndexedSourceMapConsumer(sourceMap, aSourceMapURL) : new BasicSourceMapConsumer(sourceMap, aSourceMapURL);}
SourceMapConsumer.fromSourceMap = function(aSourceMap, aSourceMapURL) { return BasicSourceMapConsumer.fromSourceMap(aSourceMap, aSourceMapURL);}
/** * The version of the source mapping spec that we are consuming. */SourceMapConsumer.prototype._version = 3;
// `__generatedMappings` and `__originalMappings` are arrays that hold the// parsed mapping coordinates from the source map's "mappings" attribute. They// are lazily instantiated, accessed via the `_generatedMappings` and// `_originalMappings` getters respectively, and we only parse the mappings// and create these arrays once queried for a source location. We jump through// these hoops because there can be many thousands of mappings, and parsing// them is expensive, so we only want to do it if we must.//// Each object in the arrays is of the form://// {// generatedLine: The line number in the generated code,// generatedColumn: The column number in the generated code,// source: The path to the original source file that generated this// chunk of code,// originalLine: The line number in the original source that// corresponds to this chunk of generated code,// originalColumn: The column number in the original source that// corresponds to this chunk of generated code,// name: The name of the original symbol which generated this chunk of// code.// }//// All properties except for `generatedLine` and `generatedColumn` can be// `null`.//// `_generatedMappings` is ordered by the generated positions.//// `_originalMappings` is ordered by the original positions.
SourceMapConsumer.prototype.__generatedMappings = null;Object.defineProperty(SourceMapConsumer.prototype, '_generatedMappings', { configurable: true, enumerable: true, get: function () { if (!this.__generatedMappings) { this._parseMappings(this._mappings, this.sourceRoot); }
return this.__generatedMappings; }});
SourceMapConsumer.prototype.__originalMappings = null;Object.defineProperty(SourceMapConsumer.prototype, '_originalMappings', { configurable: true, enumerable: true, get: function () { if (!this.__originalMappings) { this._parseMappings(this._mappings, this.sourceRoot); }
return this.__originalMappings; }});
SourceMapConsumer.prototype._charIsMappingSeparator = function SourceMapConsumer_charIsMappingSeparator(aStr, index) { var c = aStr.charAt(index); return c === ";" || c === ","; };
/** * Parse the mappings in a string in to a data structure which we can easily * query (the ordered arrays in the `this.__generatedMappings` and * `this.__originalMappings` properties). */SourceMapConsumer.prototype._parseMappings = function SourceMapConsumer_parseMappings(aStr, aSourceRoot) { throw new Error("Subclasses must implement _parseMappings"); };
SourceMapConsumer.GENERATED_ORDER = 1;SourceMapConsumer.ORIGINAL_ORDER = 2;
SourceMapConsumer.GREATEST_LOWER_BOUND = 1;SourceMapConsumer.LEAST_UPPER_BOUND = 2;
/** * Iterate over each mapping between an original source/line/column and a * generated line/column in this source map. * * @param Function aCallback * The function that is called with each mapping. * @param Object aContext * Optional. If specified, this object will be the value of `this` every * time that `aCallback` is called. * @param aOrder * Either `SourceMapConsumer.GENERATED_ORDER` or * `SourceMapConsumer.ORIGINAL_ORDER`. Specifies whether you want to * iterate over the mappings sorted by the generated file's line/column * order or the original's source/line/column order, respectively. Defaults to * `SourceMapConsumer.GENERATED_ORDER`. */SourceMapConsumer.prototype.eachMapping = function SourceMapConsumer_eachMapping(aCallback, aContext, aOrder) { var context = aContext || null; var order = aOrder || SourceMapConsumer.GENERATED_ORDER;
var mappings; switch (order) { case SourceMapConsumer.GENERATED_ORDER: mappings = this._generatedMappings; break; case SourceMapConsumer.ORIGINAL_ORDER: mappings = this._originalMappings; break; default: throw new Error("Unknown order of iteration."); }
var sourceRoot = this.sourceRoot; mappings.map(function (mapping) { var source = mapping.source === null ? null : this._sources.at(mapping.source); source = util.computeSourceURL(sourceRoot, source, this._sourceMapURL); return { source: source, generatedLine: mapping.generatedLine, generatedColumn: mapping.generatedColumn, originalLine: mapping.originalLine, originalColumn: mapping.originalColumn, name: mapping.name === null ? null : this._names.at(mapping.name) }; }, this).forEach(aCallback, context); };
/** * Returns all generated line and column information for the original source, * line, and column provided. If no column is provided, returns all mappings * corresponding to a either the line we are searching for or the next * closest line that has any mappings. Otherwise, returns all mappings * corresponding to the given line and either the column we are searching for * or the next closest column that has any offsets. * * The only argument is an object with the following properties: * * - source: The filename of the original source. * - line: The line number in the original source. The line number is 1-based. * - column: Optional. the column number in the original source. * The column number is 0-based. * * and an array of objects is returned, each with the following properties: * * - line: The line number in the generated source, or null. The * line number is 1-based. * - column: The column number in the generated source, or null. * The column number is 0-based. */SourceMapConsumer.prototype.allGeneratedPositionsFor = function SourceMapConsumer_allGeneratedPositionsFor(aArgs) { var line = util.getArg(aArgs, 'line');
// When there is no exact match, BasicSourceMapConsumer.prototype._findMapping // returns the index of the closest mapping less than the needle. By // setting needle.originalColumn to 0, we thus find the last mapping for // the given line, provided such a mapping exists. var needle = { source: util.getArg(aArgs, 'source'), originalLine: line, originalColumn: util.getArg(aArgs, 'column', 0) };
needle.source = this._findSourceIndex(needle.source); if (needle.source < 0) { return []; }
var mappings = [];
var index = this._findMapping(needle, this._originalMappings, "originalLine", "originalColumn", util.compareByOriginalPositions, binarySearch.LEAST_UPPER_BOUND); if (index >= 0) { var mapping = this._originalMappings[index];
if (aArgs.column === undefined) { var originalLine = mapping.originalLine;
// Iterate until either we run out of mappings, or we run into // a mapping for a different line than the one we found. Since // mappings are sorted, this is guaranteed to find all mappings for // the line we found. while (mapping && mapping.originalLine === originalLine) { mappings.push({ line: util.getArg(mapping, 'generatedLine', null), column: util.getArg(mapping, 'generatedColumn', null), lastColumn: util.getArg(mapping, 'lastGeneratedColumn', null) });
mapping = this._originalMappings[++index]; } } else { var originalColumn = mapping.originalColumn;
// Iterate until either we run out of mappings, or we run into // a mapping for a different line than the one we were searching for. // Since mappings are sorted, this is guaranteed to find all mappings for // the line we are searching for. while (mapping && mapping.originalLine === line && mapping.originalColumn == originalColumn) { mappings.push({ line: util.getArg(mapping, 'generatedLine', null), column: util.getArg(mapping, 'generatedColumn', null), lastColumn: util.getArg(mapping, 'lastGeneratedColumn', null) });
mapping = this._originalMappings[++index]; } } }
return mappings; };
exports.SourceMapConsumer = SourceMapConsumer;
/** * A BasicSourceMapConsumer instance represents a parsed source map which we can * query for information about the original file positions by giving it a file * position in the generated source. * * The first parameter is the raw source map (either as a JSON string, or * already parsed to an object). According to the spec, source maps have the * following attributes: * * - version: Which version of the source map spec this map is following. * - sources: An array of URLs to the original source files. * - names: An array of identifiers which can be referrenced by individual mappings. * - sourceRoot: Optional. The URL root from which all sources are relative. * - sourcesContent: Optional. An array of contents of the original source files. * - mappings: A string of base64 VLQs which contain the actual mappings. * - file: Optional. The generated file this source map is associated with. * * Here is an example source map, taken from the source map spec[0]: * * { * version : 3, * file: "out.js", * sourceRoot : "", * sources: ["foo.js", "bar.js"], * names: ["src", "maps", "are", "fun"], * mappings: "AA,AB;;ABCDE;" * } * * The second parameter, if given, is a string whose value is the URL * at which the source map was found. This URL is used to compute the * sources array. * * [0]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit?pli=1# */function BasicSourceMapConsumer(aSourceMap, aSourceMapURL) { var sourceMap = aSourceMap; if (typeof aSourceMap === 'string') { sourceMap = util.parseSourceMapInput(aSourceMap); }
var version = util.getArg(sourceMap, 'version'); var sources = util.getArg(sourceMap, 'sources'); // Sass 3.3 leaves out the 'names' array, so we deviate from the spec (which // requires the array) to play nice here. var names = util.getArg(sourceMap, 'names', []); var sourceRoot = util.getArg(sourceMap, 'sourceRoot', null); var sourcesContent = util.getArg(sourceMap, 'sourcesContent', null); var mappings = util.getArg(sourceMap, 'mappings'); var file = util.getArg(sourceMap, 'file', null);
// Once again, Sass deviates from the spec and supplies the version as a // string rather than a number, so we use loose equality checking here. if (version != this._version) { throw new Error('Unsupported version: ' + version); }
if (sourceRoot) { sourceRoot = util.normalize(sourceRoot); }
sources = sources .map(String) // Some source maps produce relative source paths like "./foo.js" instead of // "foo.js". Normalize these first so that future comparisons will succeed. // See bugzil.la/1090768. .map(util.normalize) // Always ensure that absolute sources are internally stored relative to // the source root, if the source root is absolute. Not doing this would // be particularly problematic when the source root is a prefix of the // source (valid, but why??). See github issue #199 and bugzil.la/1188982. .map(function (source) { return sourceRoot && util.isAbsolute(sourceRoot) && util.isAbsolute(source) ? util.relative(sourceRoot, source) : source; });
// Pass `true` below to allow duplicate names and sources. While source maps // are intended to be compressed and deduplicated, the TypeScript compiler // sometimes generates source maps with duplicates in them. See Github issue // #72 and bugzil.la/889492. this._names = ArraySet.fromArray(names.map(String), true); this._sources = ArraySet.fromArray(sources, true);
this._absoluteSources = this._sources.toArray().map(function (s) { return util.computeSourceURL(sourceRoot, s, aSourceMapURL); });
this.sourceRoot = sourceRoot; this.sourcesContent = sourcesContent; this._mappings = mappings; this._sourceMapURL = aSourceMapURL; this.file = file;}
BasicSourceMapConsumer.prototype = Object.create(SourceMapConsumer.prototype);BasicSourceMapConsumer.prototype.consumer = SourceMapConsumer;
/** * Utility function to find the index of a source. Returns -1 if not * found. */BasicSourceMapConsumer.prototype._findSourceIndex = function(aSource) { var relativeSource = aSource; if (this.sourceRoot != null) { relativeSource = util.relative(this.sourceRoot, relativeSource); }
if (this._sources.has(relativeSource)) { return this._sources.indexOf(relativeSource); }
// Maybe aSource is an absolute URL as returned by |sources|. In // this case we can't simply undo the transform. var i; for (i = 0; i < this._absoluteSources.length; ++i) { if (this._absoluteSources[i] == aSource) { return i; } }
return -1;};
/** * Create a BasicSourceMapConsumer from a SourceMapGenerator. * * @param SourceMapGenerator aSourceMap * The source map that will be consumed. * @param String aSourceMapURL * The URL at which the source map can be found (optional) * @returns BasicSourceMapConsumer */BasicSourceMapConsumer.fromSourceMap = function SourceMapConsumer_fromSourceMap(aSourceMap, aSourceMapURL) { var smc = Object.create(BasicSourceMapConsumer.prototype);
var names = smc._names = ArraySet.fromArray(aSourceMap._names.toArray(), true); var sources = smc._sources = ArraySet.fromArray(aSourceMap._sources.toArray(), true); smc.sourceRoot = aSourceMap._sourceRoot; smc.sourcesContent = aSourceMap._generateSourcesContent(smc._sources.toArray(), smc.sourceRoot); smc.file = aSourceMap._file; smc._sourceMapURL = aSourceMapURL; smc._absoluteSources = smc._sources.toArray().map(function (s) { return util.computeSourceURL(smc.sourceRoot, s, aSourceMapURL); });
// Because we are modifying the entries (by converting string sources and // names to indices into the sources and names ArraySets), we have to make // a copy of the entry or else bad things happen. Shared mutable state // strikes again! See github issue #191.
var generatedMappings = aSourceMap._mappings.toArray().slice(); var destGeneratedMappings = smc.__generatedMappings = []; var destOriginalMappings = smc.__originalMappings = [];
for (var i = 0, length = generatedMappings.length; i < length; i++) { var srcMapping = generatedMappings[i]; var destMapping = new Mapping; destMapping.generatedLine = srcMapping.generatedLine; destMapping.generatedColumn = srcMapping.generatedColumn;
if (srcMapping.source) { destMapping.source = sources.indexOf(srcMapping.source); destMapping.originalLine = srcMapping.originalLine; destMapping.originalColumn = srcMapping.originalColumn;
if (srcMapping.name) { destMapping.name = names.indexOf(srcMapping.name); }
destOriginalMappings.push(destMapping); }
destGeneratedMappings.push(destMapping); }
quickSort(smc.__originalMappings, util.compareByOriginalPositions);
return smc; };
/** * The version of the source mapping spec that we are consuming. */BasicSourceMapConsumer.prototype._version = 3;
/** * The list of original sources. */Object.defineProperty(BasicSourceMapConsumer.prototype, 'sources', { get: function () { return this._absoluteSources.slice(); }});
/** * Provide the JIT with a nice shape / hidden class. */function Mapping() { this.generatedLine = 0; this.generatedColumn = 0; this.source = null; this.originalLine = null; this.originalColumn = null; this.name = null;}
/** * Parse the mappings in a string in to a data structure which we can easily * query (the ordered arrays in the `this.__generatedMappings` and * `this.__originalMappings` properties). */BasicSourceMapConsumer.prototype._parseMappings = function SourceMapConsumer_parseMappings(aStr, aSourceRoot) { var generatedLine = 1; var previousGeneratedColumn = 0; var previousOriginalLine = 0; var previousOriginalColumn = 0; var previousSource = 0; var previousName = 0; var length = aStr.length; var index = 0; var cachedSegments = {}; var temp = {}; var originalMappings = []; var generatedMappings = []; var mapping, str, segment, end, value;
while (index < length) { if (aStr.charAt(index) === ';') { generatedLine++; index++; previousGeneratedColumn = 0; } else if (aStr.charAt(index) === ',') { index++; } else { mapping = new Mapping(); mapping.generatedLine = generatedLine;
// Because each offset is encoded relative to the previous one, // many segments often have the same encoding. We can exploit this // fact by caching the parsed variable length fields of each segment, // allowing us to avoid a second parse if we encounter the same // segment again. for (end = index; end < length; end++) { if (this._charIsMappingSeparator(aStr, end)) { break; } } str = aStr.slice(index, end);
segment = cachedSegments[str]; if (segment) { index += str.length; } else { segment = []; while (index < end) { base64VLQ.decode(aStr, index, temp); value = temp.value; index = temp.rest; segment.push(value); }
if (segment.length === 2) { throw new Error('Found a source, but no line and column'); }
if (segment.length === 3) { throw new Error('Found a source and line, but no column'); }
cachedSegments[str] = segment; }
// Generated column. mapping.generatedColumn = previousGeneratedColumn + segment[0]; previousGeneratedColumn = mapping.generatedColumn;
if (segment.length > 1) { // Original source. mapping.source = previousSource + segment[1]; previousSource += segment[1];
// Original line. mapping.originalLine = previousOriginalLine + segment[2]; previousOriginalLine = mapping.originalLine; // Lines are stored 0-based mapping.originalLine += 1;
// Original column. mapping.originalColumn = previousOriginalColumn + segment[3]; previousOriginalColumn = mapping.originalColumn;
if (segment.length > 4) { // Original name. mapping.name = previousName + segment[4]; previousName += segment[4]; } }
generatedMappings.push(mapping); if (typeof mapping.originalLine === 'number') { originalMappings.push(mapping); } } }
quickSort(generatedMappings, util.compareByGeneratedPositionsDeflated); this.__generatedMappings = generatedMappings;
quickSort(originalMappings, util.compareByOriginalPositions); this.__originalMappings = originalMappings; };
/** * Find the mapping that best matches the hypothetical "needle" mapping that * we are searching for in the given "haystack" of mappings. */BasicSourceMapConsumer.prototype._findMapping = function SourceMapConsumer_findMapping(aNeedle, aMappings, aLineName, aColumnName, aComparator, aBias) { // To return the position we are searching for, we must first find the // mapping for the given position and then return the opposite position it // points to. Because the mappings are sorted, we can use binary search to // find the best mapping.
if (aNeedle[aLineName] <= 0) { throw new TypeError('Line must be greater than or equal to 1, got ' + aNeedle[aLineName]); } if (aNeedle[aColumnName] < 0) { throw new TypeError('Column must be greater than or equal to 0, got ' + aNeedle[aColumnName]); }
return binarySearch.search(aNeedle, aMappings, aComparator, aBias); };
/** * Compute the last column for each generated mapping. The last column is * inclusive. */BasicSourceMapConsumer.prototype.computeColumnSpans = function SourceMapConsumer_computeColumnSpans() { for (var index = 0; index < this._generatedMappings.length; ++index) { var mapping = this._generatedMappings[index];
// Mappings do not contain a field for the last generated columnt. We // can come up with an optimistic estimate, however, by assuming that // mappings are contiguous (i.e. given two consecutive mappings, the // first mapping ends where the second one starts). if (index + 1 < this._generatedMappings.length) { var nextMapping = this._generatedMappings[index + 1];
if (mapping.generatedLine === nextMapping.generatedLine) { mapping.lastGeneratedColumn = nextMapping.generatedColumn - 1; continue; } }
// The last mapping for each line spans the entire line. mapping.lastGeneratedColumn = Infinity; } };
/** * Returns the original source, line, and column information for the generated * source's line and column positions provided. The only argument is an object * with the following properties: * * - line: The line number in the generated source. The line number * is 1-based. * - column: The column number in the generated source. The column * number is 0-based. * - bias: Either 'SourceMapConsumer.GREATEST_LOWER_BOUND' or * 'SourceMapConsumer.LEAST_UPPER_BOUND'. Specifies whether to return the * closest element that is smaller than or greater than the one we are * searching for, respectively, if the exact element cannot be found. * Defaults to 'SourceMapConsumer.GREATEST_LOWER_BOUND'. * * and an object is returned with the following properties: * * - source: The original source file, or null. * - line: The line number in the original source, or null. The * line number is 1-based. * - column: The column number in the original source, or null. The * column number is 0-based. * - name: The original identifier, or null. */BasicSourceMapConsumer.prototype.originalPositionFor = function SourceMapConsumer_originalPositionFor(aArgs) { var needle = { generatedLine: util.getArg(aArgs, 'line'), generatedColumn: util.getArg(aArgs, 'column') };
var index = this._findMapping( needle, this._generatedMappings, "generatedLine", "generatedColumn", util.compareByGeneratedPositionsDeflated, util.getArg(aArgs, 'bias', SourceMapConsumer.GREATEST_LOWER_BOUND) );
if (index >= 0) { var mapping = this._generatedMappings[index];
if (mapping.generatedLine === needle.generatedLine) { var source = util.getArg(mapping, 'source', null); if (source !== null) { source = this._sources.at(source); source = util.computeSourceURL(this.sourceRoot, source, this._sourceMapURL); } var name = util.getArg(mapping, 'name', null); if (name !== null) { name = this._names.at(name); } return { source: source, line: util.getArg(mapping, 'originalLine', null), column: util.getArg(mapping, 'originalColumn', null), name: name }; } }
return { source: null, line: null, column: null, name: null }; };
/** * Return true if we have the source content for every source in the source * map, false otherwise. */BasicSourceMapConsumer.prototype.hasContentsOfAllSources = function BasicSourceMapConsumer_hasContentsOfAllSources() { if (!this.sourcesContent) { return false; } return this.sourcesContent.length >= this._sources.size() && !this.sourcesContent.some(function (sc) { return sc == null; }); };
/** * Returns the original source content. The only argument is the url of the * original source file. Returns null if no original source content is * available. */BasicSourceMapConsumer.prototype.sourceContentFor = function SourceMapConsumer_sourceContentFor(aSource, nullOnMissing) { if (!this.sourcesContent) { return null; }
var index = this._findSourceIndex(aSource); if (index >= 0) { return this.sourcesContent[index]; }
var relativeSource = aSource; if (this.sourceRoot != null) { relativeSource = util.relative(this.sourceRoot, relativeSource); }
var url; if (this.sourceRoot != null && (url = util.urlParse(this.sourceRoot))) { // XXX: file:// URIs and absolute paths lead to unexpected behavior for // many users. We can help them out when they expect file:// URIs to // behave like it would if they were running a local HTTP server. See // https://bugzilla.mozilla.org/show_bug.cgi?id=885597. var fileUriAbsPath = relativeSource.replace(/^file:\/\//, ""); if (url.scheme == "file" && this._sources.has(fileUriAbsPath)) { return this.sourcesContent[this._sources.indexOf(fileUriAbsPath)] }
if ((!url.path || url.path == "/") && this._sources.has("/" + relativeSource)) { return this.sourcesContent[this._sources.indexOf("/" + relativeSource)]; } }
// This function is used recursively from // IndexedSourceMapConsumer.prototype.sourceContentFor. In that case, we // don't want to throw if we can't find the source - we just want to // return null, so we provide a flag to exit gracefully. if (nullOnMissing) { return null; } else { throw new Error('"' + relativeSource + '" is not in the SourceMap.'); } };
/** * Returns the generated line and column information for the original source, * line, and column positions provided. The only argument is an object with * the following properties: * * - source: The filename of the original source. * - line: The line number in the original source. The line number * is 1-based. * - column: The column number in the original source. The column * number is 0-based. * - bias: Either 'SourceMapConsumer.GREATEST_LOWER_BOUND' or * 'SourceMapConsumer.LEAST_UPPER_BOUND'. Specifies whether to return the * closest element that is smaller than or greater than the one we are * searching for, respectively, if the exact element cannot be found. * Defaults to 'SourceMapConsumer.GREATEST_LOWER_BOUND'. * * and an object is returned with the following properties: * * - line: The line number in the generated source, or null. The * line number is 1-based. * - column: The column number in the generated source, or null. * The column number is 0-based. */BasicSourceMapConsumer.prototype.generatedPositionFor = function SourceMapConsumer_generatedPositionFor(aArgs) { var source = util.getArg(aArgs, 'source'); source = this._findSourceIndex(source); if (source < 0) { return { line: null, column: null, lastColumn: null }; }
var needle = { source: source, originalLine: util.getArg(aArgs, 'line'), originalColumn: util.getArg(aArgs, 'column') };
var index = this._findMapping( needle, this._originalMappings, "originalLine", "originalColumn", util.compareByOriginalPositions, util.getArg(aArgs, 'bias', SourceMapConsumer.GREATEST_LOWER_BOUND) );
if (index >= 0) { var mapping = this._originalMappings[index];
if (mapping.source === needle.source) { return { line: util.getArg(mapping, 'generatedLine', null), column: util.getArg(mapping, 'generatedColumn', null), lastColumn: util.getArg(mapping, 'lastGeneratedColumn', null) }; } }
return { line: null, column: null, lastColumn: null }; };
exports.BasicSourceMapConsumer = BasicSourceMapConsumer;
/** * An IndexedSourceMapConsumer instance represents a parsed source map which * we can query for information. It differs from BasicSourceMapConsumer in * that it takes "indexed" source maps (i.e. ones with a "sections" field) as * input. * * The first parameter is a raw source map (either as a JSON string, or already * parsed to an object). According to the spec for indexed source maps, they * have the following attributes: * * - version: Which version of the source map spec this map is following. * - file: Optional. The generated file this source map is associated with. * - sections: A list of section definitions. * * Each value under the "sections" field has two fields: * - offset: The offset into the original specified at which this section * begins to apply, defined as an object with a "line" and "column" * field. * - map: A source map definition. This source map could also be indexed, * but doesn't have to be. * * Instead of the "map" field, it's also possible to have a "url" field * specifying a URL to retrieve a source map from, but that's currently * unsupported. * * Here's an example source map, taken from the source map spec[0], but * modified to omit a section which uses the "url" field. * * { * version : 3, * file: "app.js", * sections: [{ * offset: {line:100, column:10}, * map: { * version : 3, * file: "section.js", * sources: ["foo.js", "bar.js"], * names: ["src", "maps", "are", "fun"], * mappings: "AAAA,E;;ABCDE;" * } * }], * } * * The second parameter, if given, is a string whose value is the URL * at which the source map was found. This URL is used to compute the * sources array. * * [0]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit#heading=h.535es3xeprgt */function IndexedSourceMapConsumer(aSourceMap, aSourceMapURL) { var sourceMap = aSourceMap; if (typeof aSourceMap === 'string') { sourceMap = util.parseSourceMapInput(aSourceMap); }
var version = util.getArg(sourceMap, 'version'); var sections = util.getArg(sourceMap, 'sections');
if (version != this._version) { throw new Error('Unsupported version: ' + version); }
this._sources = new ArraySet(); this._names = new ArraySet();
var lastOffset = { line: -1, column: 0 }; this._sections = sections.map(function (s) { if (s.url) { // The url field will require support for asynchronicity. // See https://github.com/mozilla/source-map/issues/16 throw new Error('Support for url field in sections not implemented.'); } var offset = util.getArg(s, 'offset'); var offsetLine = util.getArg(offset, 'line'); var offsetColumn = util.getArg(offset, 'column');
if (offsetLine < lastOffset.line || (offsetLine === lastOffset.line && offsetColumn < lastOffset.column)) { throw new Error('Section offsets must be ordered and non-overlapping.'); } lastOffset = offset;
return { generatedOffset: { // The offset fields are 0-based, but we use 1-based indices when // encoding/decoding from VLQ. generatedLine: offsetLine + 1, generatedColumn: offsetColumn + 1 }, consumer: new SourceMapConsumer(util.getArg(s, 'map'), aSourceMapURL) } });}
IndexedSourceMapConsumer.prototype = Object.create(SourceMapConsumer.prototype);IndexedSourceMapConsumer.prototype.constructor = SourceMapConsumer;
/** * The version of the source mapping spec that we are consuming. */IndexedSourceMapConsumer.prototype._version = 3;
/** * The list of original sources. */Object.defineProperty(IndexedSourceMapConsumer.prototype, 'sources', { get: function () { var sources = []; for (var i = 0; i < this._sections.length; i++) { for (var j = 0; j < this._sections[i].consumer.sources.length; j++) { sources.push(this._sections[i].consumer.sources[j]); } } return sources; }});
/** * Returns the original source, line, and column information for the generated * source's line and column positions provided. The only argument is an object * with the following properties: * * - line: The line number in the generated source. The line number * is 1-based. * - column: The column number in the generated source. The column * number is 0-based. * * and an object is returned with the following properties: * * - source: The original source file, or null. * - line: The line number in the original source, or null. The * line number is 1-based. * - column: The column number in the original source, or null. The * column number is 0-based. * - name: The original identifier, or null. */IndexedSourceMapConsumer.prototype.originalPositionFor = function IndexedSourceMapConsumer_originalPositionFor(aArgs) { var needle = { generatedLine: util.getArg(aArgs, 'line'), generatedColumn: util.getArg(aArgs, 'column') };
// Find the section containing the generated position we're trying to map // to an original position. var sectionIndex = binarySearch.search(needle, this._sections, function(needle, section) { var cmp = needle.generatedLine - section.generatedOffset.generatedLine; if (cmp) { return cmp; }
return (needle.generatedColumn - section.generatedOffset.generatedColumn); }); var section = this._sections[sectionIndex];
if (!section) { return { source: null, line: null, column: null, name: null }; }
return section.consumer.originalPositionFor({ line: needle.generatedLine - (section.generatedOffset.generatedLine - 1), column: needle.generatedColumn - (section.generatedOffset.generatedLine === needle.generatedLine ? section.generatedOffset.generatedColumn - 1 : 0), bias: aArgs.bias }); };
/** * Return true if we have the source content for every source in the source * map, false otherwise. */IndexedSourceMapConsumer.prototype.hasContentsOfAllSources = function IndexedSourceMapConsumer_hasContentsOfAllSources() { return this._sections.every(function (s) { return s.consumer.hasContentsOfAllSources(); }); };
/** * Returns the original source content. The only argument is the url of the * original source file. Returns null if no original source content is * available. */IndexedSourceMapConsumer.prototype.sourceContentFor = function IndexedSourceMapConsumer_sourceContentFor(aSource, nullOnMissing) { for (var i = 0; i < this._sections.length; i++) { var section = this._sections[i];
var content = section.consumer.sourceContentFor(aSource, true); if (content) { return content; } } if (nullOnMissing) { return null; } else { throw new Error('"' + aSource + '" is not in the SourceMap.'); } };
/** * Returns the generated line and column information for the original source, * line, and column positions provided. The only argument is an object with * the following properties: * * - source: The filename of the original source. * - line: The line number in the original source. The line number * is 1-based. * - column: The column number in the original source. The column * number is 0-based. * * and an object is returned with the following properties: * * - line: The line number in the generated source, or null. The * line number is 1-based. * - column: The column number in the generated source, or null. * The column number is 0-based. */IndexedSourceMapConsumer.prototype.generatedPositionFor = function IndexedSourceMapConsumer_generatedPositionFor(aArgs) { for (var i = 0; i < this._sections.length; i++) { var section = this._sections[i];
// Only consider this section if the requested source is in the list of // sources of the consumer. if (section.consumer._findSourceIndex(util.getArg(aArgs, 'source')) === -1) { continue; } var generatedPosition = section.consumer.generatedPositionFor(aArgs); if (generatedPosition) { var ret = { line: generatedPosition.line + (section.generatedOffset.generatedLine - 1), column: generatedPosition.column + (section.generatedOffset.generatedLine === generatedPosition.line ? section.generatedOffset.generatedColumn - 1 : 0) }; return ret; } }
return { line: null, column: null }; };
/** * Parse the mappings in a string in to a data structure which we can easily * query (the ordered arrays in the `this.__generatedMappings` and * `this.__originalMappings` properties). */IndexedSourceMapConsumer.prototype._parseMappings = function IndexedSourceMapConsumer_parseMappings(aStr, aSourceRoot) { this.__generatedMappings = []; this.__originalMappings = []; for (var i = 0; i < this._sections.length; i++) { var section = this._sections[i]; var sectionMappings = section.consumer._generatedMappings; for (var j = 0; j < sectionMappings.length; j++) { var mapping = sectionMappings[j];
var source = section.consumer._sources.at(mapping.source); source = util.computeSourceURL(section.consumer.sourceRoot, source, this._sourceMapURL); this._sources.add(source); source = this._sources.indexOf(source);
var name = null; if (mapping.name) { name = section.consumer._names.at(mapping.name); this._names.add(name); name = this._names.indexOf(name); }
// The mappings coming from the consumer for the section have // generated positions relative to the start of the section, so we // need to offset them to be relative to the start of the concatenated // generated file. var adjustedMapping = { source: source, generatedLine: mapping.generatedLine + (section.generatedOffset.generatedLine - 1), generatedColumn: mapping.generatedColumn + (section.generatedOffset.generatedLine === mapping.generatedLine ? section.generatedOffset.generatedColumn - 1 : 0), originalLine: mapping.originalLine, originalColumn: mapping.originalColumn, name: name };
this.__generatedMappings.push(adjustedMapping); if (typeof adjustedMapping.originalLine === 'number') { this.__originalMappings.push(adjustedMapping); } } }
quickSort(this.__generatedMappings, util.compareByGeneratedPositionsDeflated); quickSort(this.__originalMappings, util.compareByOriginalPositions); };
exports.IndexedSourceMapConsumer = IndexedSourceMapConsumer;