diff --git a/packages/uni-stacktracey/dist/uni-stacktracey.cjs.js b/packages/uni-stacktracey/dist/uni-stacktracey.cjs.js index 389d2d323e10089d4c5a2d57d9c1f8aa0ce748e6..82e23a696b64c7357d3b76e5c7af834fec7f6203 100644 --- a/packages/uni-stacktracey/dist/uni-stacktracey.cjs.js +++ b/packages/uni-stacktracey/dist/uni-stacktracey.cjs.js @@ -2,12 +2,13 @@ Object.defineProperty(exports, '__esModule', { value: true }); -var fs = require('fs'); -var sourceMap = require('source-map'); +var require$$0$2 = require('fs'); +var require$$1$2 = require('path'); function _interopDefaultLegacy (e) { return e && typeof e === 'object' && 'default' in e ? e : { 'default': e }; } -var fs__default = /*#__PURE__*/_interopDefaultLegacy(fs); +var require$$0__default = /*#__PURE__*/_interopDefaultLegacy(require$$0$2); +var require$$1__default = /*#__PURE__*/_interopDefaultLegacy(require$$1$2); /* ------------------------------------------------------------------------ */ const O = Object, isBrowser = @@ -206,6 +207,3222 @@ function parseItem(e, maxColumnWidths, isMP) { /* ------------------------------------------------------------------------ */ var StackTracey$1 = StackTracey; +/* -*- 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. + */ +var encode$1 = function(number) { + if (0 <= number && number < intToCharMap.length) { + return intToCharMap[number]; + } + throw new TypeError("Must be between 0 and 63: " + number); +}; + +var base64$1 = { + encode: encode$1 +}; + +var base64 = base64$1; + +/* -*- 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. + */ + + + +// 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; +} + +/** + * Returns the base 64 VLQ encoded value. + */ +var 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; +}; + +var base64Vlq = { + encode: encode +}; + +function createCommonjsModule(fn) { + var module = { exports: {} }; + return fn(module, module.exports), module.exports; +} + +/* -*- Mode: js; js-indent-level: 2; -*- */ + +var util$1 = createCommonjsModule(function (module, exports) { +/* + * Copyright 2011 Mozilla Foundation and contributors + * Licensed under the New BSD license. See LICENSE or: + * http://opensource.org/licenses/BSD-3-Clause + */ + +/** + * This is a helper function for getting values from parameter/options + * objects. + * + * @param args The object we are extracting values from + * @param name The name of the property we are getting. + * @param defaultValue An optional value to return if the property is missing + * from the object. If this is not specified and the property is missing, an + * error will be thrown. + */ +function getArg(aArgs, aName, aDefaultValue) { + if (aName in aArgs) { + return aArgs[aName]; + } else if (arguments.length === 3) { + return aDefaultValue; + } + throw new Error('"' + aName + '" is a required argument.'); + +} +exports.getArg = getArg; + +const urlRegexp = /^(?:([\w+\-.]+):)?\/\/(?:(\w+:\w+)@)?([\w.-]*)(?::(\d+))?(.*)$/; +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 '/..' 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; +}); + +/* -*- 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$2 { + 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$2(); + 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(); + } +} +var ArraySet_1 = ArraySet$2; + +var arraySet = { + ArraySet: ArraySet_1 +}; + +var util = util$1; + +/* -*- 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 + */ + + + +/** + * 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$1 { + 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; + } +} + +var MappingList_1 = MappingList$1; + +var mappingList = { + MappingList: MappingList_1 +}; + +var base64VLQ = base64Vlq; + +var require$$0$1 = arraySet; + +var require$$1$1 = mappingList; + +/* -*- 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 ArraySet$1 = require$$0$1.ArraySet; +const MappingList = require$$1$1.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$1 { + 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$1(); + this._names = new ArraySet$1(); + 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$1({ + 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$1() + : this._sources; + const newNames = new ArraySet$1(); + + // 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) ; 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) ; 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$1.prototype._version = 3; +var SourceMapGenerator_1 = SourceMapGenerator$1; + +var sourceMapGenerator = { + SourceMapGenerator: SourceMapGenerator_1 +}; + +/* -*- Mode: js; js-indent-level: 2; -*- */ + +var binarySearch$1 = createCommonjsModule(function (module, exports) { +/* + * 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; +}; +}); + +/* Determine browser vs node environment by testing the default top level context. Solution courtesy of: https://stackoverflow.com/questions/17575790/environment-detection-node-js-or-browser */ + +var readWasm$1 = createCommonjsModule(function (module) { +{ + // Node version of reading a wasm file into an array buffer. + const fs = require$$0__default["default"]; + const path = require$$1__default["default"]; + + module.exports = function readWasm() { + return new Promise((resolve, reject) => { + const wasmPath = path.join(__dirname, "../lib/source-map/lib", "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"); + }; +} +}); + +var readWasm = readWasm$1; + +/** + * 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; + +var wasm$1 = 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; +}; + +var binarySearch = binarySearch$1; + +var wasm = wasm$1; + +/* -*- 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 ArraySet = require$$0$1.ArraySet; + // eslint-disable-line no-unused-vars + + + +const INTERNAL = Symbol("smcInternal"); + +class SourceMapConsumer$1 { + constructor(aSourceMap, aSourceMapURL) { + // If the constructor was called by super(), just return Promise. + // 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 async with(rawSourceMap, sourceMapUrl, f) { + const consumer = await new SourceMapConsumer$1(rawSourceMap, sourceMapUrl); + try { + return await f(consumer); + } finally { + consumer.destroy(); + } + } + + /** + * 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$1.prototype._version = 3; +SourceMapConsumer$1.GENERATED_ORDER = 1; +SourceMapConsumer$1.ORIGINAL_ORDER = 2; + +SourceMapConsumer$1.GREATEST_LOWER_BOUND = 1; +SourceMapConsumer$1.LEAST_UPPER_BOUND = 2; + +var SourceMapConsumer_1 = SourceMapConsumer$1; + +/** + * 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$1 { + 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$1.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$1.GENERATED_ORDER: + this._wasm.exports.by_generated_location(this._getMappingsPtr()); + break; + case SourceMapConsumer$1.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$1.GREATEST_LOWER_BOUND); + if (bias == null) { + bias = SourceMapConsumer$1.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$1.GREATEST_LOWER_BOUND); + if (bias == null) { + bias = SourceMapConsumer$1.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$1; +var BasicSourceMapConsumer_1 = 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$1 { + 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$1(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$1.GENERATED_ORDER; + + let mappings; + switch (order) { + case SourceMapConsumer$1.GENERATED_ORDER: + mappings = this._generatedMappings; + break; + case SourceMapConsumer$1.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(); + } + } +} +var IndexedSourceMapConsumer_1 = 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); +} + +var sourceMapConsumer = { + SourceMapConsumer: SourceMapConsumer_1, + BasicSourceMapConsumer: BasicSourceMapConsumer_1, + IndexedSourceMapConsumer: IndexedSourceMapConsumer_1 +}; + +var require$$0 = sourceMapGenerator; + +/* -*- 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 = require$$0.SourceMapGenerator; + + +// Matches a Windows-style `\r\n` newline or a `\n` newline used by all other +// operating systems these days (capturing the result). +const REGEX_NEWLINE = /(\r?\n)/; + +// Newline character code for charCodeAt() comparisons +const NEWLINE_CODE = 10; + +// Private symbol for identifying `SourceNode`s when multiple versions of +// the source-map library are loaded. This MUST NOT CHANGE across +// versions! +const isSourceNode = "$$$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 }; + } +} + +var SourceNode_1 = SourceNode; + +var sourceNode = { + SourceNode: SourceNode_1 +}; + +var require$$1 = sourceMapConsumer; + +var require$$2 = sourceNode; + +/* + * Copyright 2009-2011 Mozilla Foundation and contributors + * Licensed under the New BSD license. See LICENSE.txt or: + * http://opensource.org/licenses/BSD-3-Clause + */ + +require$$0.SourceMapGenerator; +var SourceMapConsumer = require$$1.SourceMapConsumer; +require$$2.SourceNode; + const nixSlashes = (x) => x.replace(/\\/g, '/'); const sourcemapCatch = {}; function stacktracey(stacktrace, opts) { @@ -296,14 +3513,14 @@ function isThirdParty(relativePath) { function getConsumer(content) { return new Promise((resolve, reject) => { try { - if (sourceMap.SourceMapConsumer.with) { - sourceMap.SourceMapConsumer.with(content, null, (consumer) => { + if (SourceMapConsumer.with) { + SourceMapConsumer.with(content, null, (consumer) => { resolve(consumer); }); } else { // @ts-ignore - const consumer = sourceMap.SourceMapConsumer(content); + const consumer = SourceMapConsumer(content); resolve(consumer); } } @@ -335,7 +3552,7 @@ function getSourceMapContent(sourcemapUrl) { }); } else { - sourcemapCatch[sourcemapUrl] = fs__default["default"].readFileSync(sourcemapUrl, 'utf-8'); + sourcemapCatch[sourcemapUrl] = require$$0__default["default"].readFileSync(sourcemapUrl, 'utf-8'); resolve(sourcemapCatch[sourcemapUrl]); } } diff --git a/packages/uni-stacktracey/dist/uni-stacktracey.es.js b/packages/uni-stacktracey/dist/uni-stacktracey.es.js index 5dbfcce215fe287b4c931fa6c0df8c57f90ca76d..6e8ec64569cb31a81c4570371e58231ae6a3c37c 100644 --- a/packages/uni-stacktracey/dist/uni-stacktracey.es.js +++ b/packages/uni-stacktracey/dist/uni-stacktracey.es.js @@ -1,5 +1,4 @@ -import fs from 'fs'; -import { SourceMapConsumer } from 'source-map'; +import require$$0$2 from 'fs'; /* ------------------------------------------------------------------------ */ const O = Object, isBrowser = @@ -198,6 +197,3220 @@ function parseItem(e, maxColumnWidths, isMP) { /* ------------------------------------------------------------------------ */ var StackTracey$1 = StackTracey; +/* -*- 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. + */ +var encode$1 = function(number) { + if (0 <= number && number < intToCharMap.length) { + return intToCharMap[number]; + } + throw new TypeError("Must be between 0 and 63: " + number); +}; + +var base64$1 = { + encode: encode$1 +}; + +var base64 = base64$1; + +/* -*- 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. + */ + + + +// 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; +} + +/** + * Returns the base 64 VLQ encoded value. + */ +var 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; +}; + +var base64Vlq = { + encode: encode +}; + +function createCommonjsModule(fn) { + var module = { exports: {} }; + return fn(module, module.exports), module.exports; +} + +/* -*- Mode: js; js-indent-level: 2; -*- */ + +var util$1 = createCommonjsModule(function (module, exports) { +/* + * Copyright 2011 Mozilla Foundation and contributors + * Licensed under the New BSD license. See LICENSE or: + * http://opensource.org/licenses/BSD-3-Clause + */ + +/** + * This is a helper function for getting values from parameter/options + * objects. + * + * @param args The object we are extracting values from + * @param name The name of the property we are getting. + * @param defaultValue An optional value to return if the property is missing + * from the object. If this is not specified and the property is missing, an + * error will be thrown. + */ +function getArg(aArgs, aName, aDefaultValue) { + if (aName in aArgs) { + return aArgs[aName]; + } else if (arguments.length === 3) { + return aDefaultValue; + } + throw new Error('"' + aName + '" is a required argument.'); + +} +exports.getArg = getArg; + +const urlRegexp = /^(?:([\w+\-.]+):)?\/\/(?:(\w+:\w+)@)?([\w.-]*)(?::(\d+))?(.*)$/; +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 '/..' 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; +}); + +/* -*- 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$2 { + 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$2(); + 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(); + } +} +var ArraySet_1 = ArraySet$2; + +var arraySet = { + ArraySet: ArraySet_1 +}; + +var util = util$1; + +/* -*- 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 + */ + + + +/** + * 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$1 { + 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; + } +} + +var MappingList_1 = MappingList$1; + +var mappingList = { + MappingList: MappingList_1 +}; + +var base64VLQ = base64Vlq; + +var require$$0$1 = arraySet; + +var require$$1$1 = mappingList; + +/* -*- 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 ArraySet$1 = require$$0$1.ArraySet; +const MappingList = require$$1$1.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$1 { + 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$1(); + this._names = new ArraySet$1(); + 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$1({ + 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$1() + : this._sources; + const newNames = new ArraySet$1(); + + // 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) ; 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) ; 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$1.prototype._version = 3; +var SourceMapGenerator_1 = SourceMapGenerator$1; + +var sourceMapGenerator = { + SourceMapGenerator: SourceMapGenerator_1 +}; + +/* -*- Mode: js; js-indent-level: 2; -*- */ + +var binarySearch$1 = createCommonjsModule(function (module, exports) { +/* + * 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; +}; +}); + +/* Determine browser vs node environment by testing the default top level context. Solution courtesy of: https://stackoverflow.com/questions/17575790/environment-detection-node-js-or-browser */ + +var readWasm$1 = createCommonjsModule(function (module) { +{ + // Web version of reading a wasm file into an array buffer. + + let mappingsWasm = null; + + module.exports = function readWasm() { + if (typeof mappingsWasm === "string") { + return fetch(mappingsWasm) + .then(response => response.arrayBuffer()); + } + if (mappingsWasm instanceof ArrayBuffer) { + return Promise.resolve(mappingsWasm); + } + throw new Error("You must provide the string URL or ArrayBuffer contents " + + "of lib/mappings.wasm by calling " + + "SourceMapConsumer.initialize({ 'lib/mappings.wasm': ... }) " + + "before using SourceMapConsumer"); + }; + + module.exports.initialize = input => mappingsWasm = input; +} +}); + +var readWasm = readWasm$1; + +/** + * 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; + +var wasm$1 = 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; +}; + +var binarySearch = binarySearch$1; + +var wasm = wasm$1; + +/* -*- 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 ArraySet = require$$0$1.ArraySet; + // eslint-disable-line no-unused-vars + + + +const INTERNAL = Symbol("smcInternal"); + +class SourceMapConsumer$1 { + constructor(aSourceMap, aSourceMapURL) { + // If the constructor was called by super(), just return Promise. + // 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 async with(rawSourceMap, sourceMapUrl, f) { + const consumer = await new SourceMapConsumer$1(rawSourceMap, sourceMapUrl); + try { + return await f(consumer); + } finally { + consumer.destroy(); + } + } + + /** + * 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$1.prototype._version = 3; +SourceMapConsumer$1.GENERATED_ORDER = 1; +SourceMapConsumer$1.ORIGINAL_ORDER = 2; + +SourceMapConsumer$1.GREATEST_LOWER_BOUND = 1; +SourceMapConsumer$1.LEAST_UPPER_BOUND = 2; + +var SourceMapConsumer_1 = SourceMapConsumer$1; + +/** + * 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$1 { + 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$1.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$1.GENERATED_ORDER: + this._wasm.exports.by_generated_location(this._getMappingsPtr()); + break; + case SourceMapConsumer$1.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$1.GREATEST_LOWER_BOUND); + if (bias == null) { + bias = SourceMapConsumer$1.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$1.GREATEST_LOWER_BOUND); + if (bias == null) { + bias = SourceMapConsumer$1.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$1; +var BasicSourceMapConsumer_1 = 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$1 { + 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$1(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$1.GENERATED_ORDER; + + let mappings; + switch (order) { + case SourceMapConsumer$1.GENERATED_ORDER: + mappings = this._generatedMappings; + break; + case SourceMapConsumer$1.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(); + } + } +} +var IndexedSourceMapConsumer_1 = 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); +} + +var sourceMapConsumer = { + SourceMapConsumer: SourceMapConsumer_1, + BasicSourceMapConsumer: BasicSourceMapConsumer_1, + IndexedSourceMapConsumer: IndexedSourceMapConsumer_1 +}; + +var require$$0 = sourceMapGenerator; + +/* -*- 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 = require$$0.SourceMapGenerator; + + +// Matches a Windows-style `\r\n` newline or a `\n` newline used by all other +// operating systems these days (capturing the result). +const REGEX_NEWLINE = /(\r?\n)/; + +// Newline character code for charCodeAt() comparisons +const NEWLINE_CODE = 10; + +// Private symbol for identifying `SourceNode`s when multiple versions of +// the source-map library are loaded. This MUST NOT CHANGE across +// versions! +const isSourceNode = "$$$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 }; + } +} + +var SourceNode_1 = SourceNode; + +var sourceNode = { + SourceNode: SourceNode_1 +}; + +var require$$1 = sourceMapConsumer; + +var require$$2 = sourceNode; + +/* + * Copyright 2009-2011 Mozilla Foundation and contributors + * Licensed under the New BSD license. See LICENSE.txt or: + * http://opensource.org/licenses/BSD-3-Clause + */ + +require$$0.SourceMapGenerator; +var SourceMapConsumer = require$$1.SourceMapConsumer; +require$$2.SourceNode; + // @ts-ignore { // @ts-ignore @@ -337,7 +3550,7 @@ function getSourceMapContent(sourcemapUrl) { }); } else { - sourcemapCatch[sourcemapUrl] = fs.readFileSync(sourcemapUrl, 'utf-8'); + sourcemapCatch[sourcemapUrl] = require$$0$2.readFileSync(sourcemapUrl, 'utf-8'); resolve(sourcemapCatch[sourcemapUrl]); } } diff --git a/packages/uni-stacktracey/lib/source-map/LICENSE b/packages/uni-stacktracey/lib/source-map/LICENSE new file mode 100644 index 0000000000000000000000000000000000000000..ed1b7cf27e97e136918e87ad7bb33baf169f0171 --- /dev/null +++ b/packages/uni-stacktracey/lib/source-map/LICENSE @@ -0,0 +1,28 @@ + +Copyright (c) 2009-2011, Mozilla Foundation and contributors +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 names of the Mozilla Foundation nor the names of project + 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 HOLDER 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. diff --git a/packages/uni-stacktracey/lib/source-map/README.md b/packages/uni-stacktracey/lib/source-map/README.md new file mode 100644 index 0000000000000000000000000000000000000000..56e5ac3e8ffd72874201e91c2f45ceb1b614fb2f --- /dev/null +++ b/packages/uni-stacktracey/lib/source-map/README.md @@ -0,0 +1,822 @@ +# Source Map + +[![Build Status](https://travis-ci.org/mozilla/source-map.png?branch=master)](https://travis-ci.org/mozilla/source-map) + +[![Coverage Status](https://coveralls.io/repos/github/mozilla/source-map/badge.svg)](https://coveralls.io/github/mozilla/source-map) + +[![NPM](https://nodei.co/npm/source-map.png?downloads=true&downloadRank=true)](https://www.npmjs.com/package/source-map) + +This is a library to generate and consume the source map format +[described here][format]. + +[format]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit + +## Use with Node + + $ npm install source-map + +## Use on the Web + + + + +-------------------------------------------------------------------------------- + + + + + +## Table of Contents + +- [Examples](#examples) + - [Consuming a source map](#consuming-a-source-map) + - [Generating a source map](#generating-a-source-map) + - [With SourceNode (high level API)](#with-sourcenode-high-level-api) + - [With SourceMapGenerator (low level API)](#with-sourcemapgenerator-low-level-api) +- [API](#api) + - [SourceMapConsumer](#sourcemapconsumer) + - [SourceMapConsumer.initialize(options)](#sourcemapconsumerinitializeoptions) + - [new SourceMapConsumer(rawSourceMap)](#new-sourcemapconsumerrawsourcemap) + - [SourceMapConsumer.with](#sourcemapconsumerwith) + - [SourceMapConsumer.prototype.destroy()](#sourcemapconsumerprototypedestroy) + - [SourceMapConsumer.prototype.computeColumnSpans()](#sourcemapconsumerprototypecomputecolumnspans) + - [SourceMapConsumer.prototype.originalPositionFor(generatedPosition)](#sourcemapconsumerprototypeoriginalpositionforgeneratedposition) + - [SourceMapConsumer.prototype.generatedPositionFor(originalPosition)](#sourcemapconsumerprototypegeneratedpositionfororiginalposition) + - [SourceMapConsumer.prototype.allGeneratedPositionsFor(originalPosition)](#sourcemapconsumerprototypeallgeneratedpositionsfororiginalposition) + - [SourceMapConsumer.prototype.hasContentsOfAllSources()](#sourcemapconsumerprototypehascontentsofallsources) + - [SourceMapConsumer.prototype.sourceContentFor(source[, returnNullOnMissing])](#sourcemapconsumerprototypesourcecontentforsource-returnnullonmissing) + - [SourceMapConsumer.prototype.eachMapping(callback, context, order)](#sourcemapconsumerprototypeeachmappingcallback-context-order) + - [SourceMapGenerator](#sourcemapgenerator) + - [new SourceMapGenerator([startOfSourceMap])](#new-sourcemapgeneratorstartofsourcemap) + - [SourceMapGenerator.fromSourceMap(sourceMapConsumer)](#sourcemapgeneratorfromsourcemapsourcemapconsumer) + - [SourceMapGenerator.prototype.addMapping(mapping)](#sourcemapgeneratorprototypeaddmappingmapping) + - [SourceMapGenerator.prototype.setSourceContent(sourceFile, sourceContent)](#sourcemapgeneratorprototypesetsourcecontentsourcefile-sourcecontent) + - [SourceMapGenerator.prototype.applySourceMap(sourceMapConsumer[, sourceFile[, sourceMapPath]])](#sourcemapgeneratorprototypeapplysourcemapsourcemapconsumer-sourcefile-sourcemappath) + - [SourceMapGenerator.prototype.toString()](#sourcemapgeneratorprototypetostring) + - [SourceNode](#sourcenode) + - [new SourceNode([line, column, source[, chunk[, name]]])](#new-sourcenodeline-column-source-chunk-name) + - [SourceNode.fromStringWithSourceMap(code, sourceMapConsumer[, relativePath])](#sourcenodefromstringwithsourcemapcode-sourcemapconsumer-relativepath) + - [SourceNode.prototype.add(chunk)](#sourcenodeprototypeaddchunk) + - [SourceNode.prototype.prepend(chunk)](#sourcenodeprototypeprependchunk) + - [SourceNode.prototype.setSourceContent(sourceFile, sourceContent)](#sourcenodeprototypesetsourcecontentsourcefile-sourcecontent) + - [SourceNode.prototype.walk(fn)](#sourcenodeprototypewalkfn) + - [SourceNode.prototype.walkSourceContents(fn)](#sourcenodeprototypewalksourcecontentsfn) + - [SourceNode.prototype.join(sep)](#sourcenodeprototypejoinsep) + - [SourceNode.prototype.replaceRight(pattern, replacement)](#sourcenodeprototypereplacerightpattern-replacement) + - [SourceNode.prototype.toString()](#sourcenodeprototypetostring) + - [SourceNode.prototype.toStringWithSourceMap([startOfSourceMap])](#sourcenodeprototypetostringwithsourcemapstartofsourcemap) + + + +## Examples + +### Consuming a source map + +```js +const rawSourceMap = { + version: 3, + file: 'min.js', + names: ['bar', 'baz', 'n'], + sources: ['one.js', 'two.js'], + sourceRoot: 'http://example.com/www/js/', + mappings: 'CAAC,IAAI,IAAM,SAAUA,GAClB,OAAOC,IAAID;CCDb,IAAI,IAAM,SAAUE,GAClB,OAAOA' +}; + +const whatever = await SourceMapConsumer.with(rawSourceMap, null, consumer => { + + console.log(consumer.sources); + // [ 'http://example.com/www/js/one.js', + // 'http://example.com/www/js/two.js' ] + + console.log(consumer.originalPositionFor({ + line: 2, + column: 28 + })); + // { source: 'http://example.com/www/js/two.js', + // line: 2, + // column: 10, + // name: 'n' } + + console.log(consumer.generatedPositionFor({ + source: 'http://example.com/www/js/two.js', + line: 2, + column: 10 + })); + // { line: 2, column: 28 } + + consumer.eachMapping(function (m) { + // ... + }); + + return computeWhatever(); +}); +``` + +### Generating a source map + +In depth guide: +[**Compiling to JavaScript, and Debugging with Source Maps**](https://hacks.mozilla.org/2013/05/compiling-to-javascript-and-debugging-with-source-maps/) + +#### With SourceNode (high level API) + +```js +function compile(ast) { + switch (ast.type) { + case 'BinaryExpression': + return new SourceNode( + ast.location.line, + ast.location.column, + ast.location.source, + [compile(ast.left), " + ", compile(ast.right)] + ); + case 'Literal': + return new SourceNode( + ast.location.line, + ast.location.column, + ast.location.source, + String(ast.value) + ); + // ... + default: + throw new Error("Bad AST"); + } +} + +var ast = parse("40 + 2", "add.js"); +console.log(compile(ast).toStringWithSourceMap({ + file: 'add.js' +})); +// { code: '40 + 2', +// map: [object SourceMapGenerator] } +``` + +#### With SourceMapGenerator (low level API) + +```js +var map = new SourceMapGenerator({ + file: "source-mapped.js" +}); + +map.addMapping({ + generated: { + line: 10, + column: 35 + }, + source: "foo.js", + original: { + line: 33, + column: 2 + }, + name: "christopher" +}); + +console.log(map.toString()); +// '{"version":3,"file":"source-mapped.js","sources":["foo.js"],"names":["christopher"],"mappings":";;;;;;;;;mCAgCEA"}' +``` + +## API + +Get a reference to the module: + +```js +// Node.js +var sourceMap = require('source-map'); + +// Browser builds +var sourceMap = window.sourceMap; + +// Inside Firefox +const sourceMap = require("devtools/toolkit/sourcemap/source-map.js"); +``` + +### SourceMapConsumer + +A `SourceMapConsumer` 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. + +#### SourceMapConsumer.initialize(options) + +When using `SourceMapConsumer` outside of node.js, for example on the Web, it +needs to know from what URL to load `lib/mappings.wasm`. You must inform it by +calling `initialize` before constructing any `SourceMapConsumer`s. + +The options object has the following properties: + +* `"lib/mappings.wasm"`: A `String` containing the URL of the + `lib/mappings.wasm` file, or an `ArrayBuffer` with the contents of `lib/mappings.wasm`. + +```js +sourceMap.SourceMapConsumer.initialize({ + "lib/mappings.wasm": "https://example.com/source-map/lib/mappings.wasm" +}); +``` + +#### new SourceMapConsumer(rawSourceMap) + +The only parameter is the raw source map (either as a string which can be +`JSON.parse`'d, or 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 filename this source map is associated with. + +The promise of the constructed souce map consumer is returned. + +When the `SourceMapConsumer` will no longer be used anymore, you must call its +`destroy` method. + +```js +const consumer = await new sourceMap.SourceMapConsumer(rawSourceMapJsonData); +doStuffWith(consumer); +consumer.destroy(); +``` + +Alternatively, you can use `SourceMapConsumer.with` to avoid needing to remember +to call `destroy`. + +#### SourceMapConsumer.with + +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); +``` + +#### SourceMapConsumer.prototype.destroy() + +Free this source map consumer's associated wasm data that is manually-managed. + +```js +consumer.destroy(); +``` + +Alternatively, you can use `SourceMapConsumer.with` to avoid needing to remember +to call `destroy`. + +#### SourceMapConsumer.prototype.computeColumnSpans() + +Compute the last column for each generated mapping. The last column is +inclusive. + +```js +// Before: +consumer.allGeneratedPositionsFor({ line: 2, source: "foo.coffee" }) +// [ { line: 2, +// column: 1 }, +// { line: 2, +// column: 10 }, +// { line: 2, +// column: 20 } ] + +consumer.computeColumnSpans(); + +// After: +consumer.allGeneratedPositionsFor({ line: 2, source: "foo.coffee" }) +// [ { line: 2, +// column: 1, +// lastColumn: 9 }, +// { line: 2, +// column: 10, +// lastColumn: 19 }, +// { line: 2, +// column: 20, +// lastColumn: Infinity } ] +``` + +#### SourceMapConsumer.prototype.originalPositionFor(generatedPosition) + +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. Line numbers in + this library are 1-based (note that the underlying source map + specification uses 0-based line numbers -- this library handles the + translation). + +* `column`: The column number in the generated source. Column numbers + in this library are 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 if this information is not + available. + +* `line`: The line number in the original source, or null if this information is + not available. The line number is 1-based. + +* `column`: The column number in the original source, or null if this + information is not available. The column number is 0-based. + +* `name`: The original identifier, or null if this information is not available. + +```js +consumer.originalPositionFor({ line: 2, column: 10 }) +// { source: 'foo.coffee', +// line: 2, +// column: 2, +// name: null } + +consumer.originalPositionFor({ line: 99999999999999999, column: 999999999999999 }) +// { source: null, +// line: null, +// column: null, +// name: null } +``` + +#### SourceMapConsumer.prototype.generatedPositionFor(originalPosition) + +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. + +```js +consumer.generatedPositionFor({ source: "example.js", line: 2, column: 10 }) +// { line: 1, +// column: 56 } +``` + +#### SourceMapConsumer.prototype.allGeneratedPositionsFor(originalPosition) + +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. + +```js +consumer.allGeneratedpositionsfor({ line: 2, source: "foo.coffee" }) +// [ { line: 2, +// column: 1 }, +// { line: 2, +// column: 10 }, +// { line: 2, +// column: 20 } ] +``` + +#### SourceMapConsumer.prototype.hasContentsOfAllSources() + +Return true if we have the embedded source content for every source listed in +the source map, false otherwise. + +In other words, if this method returns `true`, then +`consumer.sourceContentFor(s)` will succeed for every source `s` in +`consumer.sources`. + +```js +// ... +if (consumer.hasContentsOfAllSources()) { + consumerReadyCallback(consumer); +} else { + fetchSources(consumer, consumerReadyCallback); +} +// ... +``` + +#### SourceMapConsumer.prototype.sourceContentFor(source[, returnNullOnMissing]) + +Returns the original source content for the source provided. The only +argument is the URL of the original source file. + +If the source content for the given source is not found, then an error is +thrown. Optionally, pass `true` as the second param to have `null` returned +instead. + +```js +consumer.sources +// [ "my-cool-lib.clj" ] + +consumer.sourceContentFor("my-cool-lib.clj") +// "..." + +consumer.sourceContentFor("this is not in the source map"); +// Error: "this is not in the source map" is not in the source map + +consumer.sourceContentFor("this is not in the source map", true); +// null +``` + +#### SourceMapConsumer.prototype.eachMapping(callback, context, order) + +Iterate over each mapping between an original source/line/column and a +generated line/column in this source map. + +* `callback`: The function that is called with each mapping. Mappings have the + form `{ source, generatedLine, generatedColumn, originalLine, originalColumn, + name }` + +* `context`: Optional. If specified, this object will be the value of `this` + every time that `callback` is called. + +* `order`: 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`. + +```js +consumer.eachMapping(function (m) { console.log(m); }) +// ... +// { source: 'illmatic.js', +// generatedLine: 1, +// generatedColumn: 0, +// originalLine: 1, +// originalColumn: 0, +// name: null } +// { source: 'illmatic.js', +// generatedLine: 2, +// generatedColumn: 0, +// originalLine: 2, +// originalColumn: 0, +// name: null } +// ... +``` +### SourceMapGenerator + +An instance of the SourceMapGenerator represents a source map which is being +built incrementally. + +#### new SourceMapGenerator([startOfSourceMap]) + +You may pass an object with the following properties: + +* `file`: The filename of the generated source that this source map is + associated with. + +* `sourceRoot`: A root for all relative URLs in this source map. + +* `skipValidation`: Optional. When `true`, disables validation of mappings as + they are added. This can improve performance but should be used with + discretion, as a last resort. Even then, one should avoid using this flag when + running tests, if possible. + +```js +var generator = new sourceMap.SourceMapGenerator({ + file: "my-generated-javascript-file.js", + sourceRoot: "http://example.com/app/js/" +}); +``` + +#### SourceMapGenerator.fromSourceMap(sourceMapConsumer) + +Creates a new `SourceMapGenerator` from an existing `SourceMapConsumer` instance. + +* `sourceMapConsumer` The SourceMap. + +```js +var generator = sourceMap.SourceMapGenerator.fromSourceMap(consumer); +``` + +#### SourceMapGenerator.prototype.addMapping(mapping) + +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. + +```js +generator.addMapping({ + source: "module-one.scm", + original: { line: 128, column: 0 }, + generated: { line: 3, column: 456 } +}) +``` + +#### SourceMapGenerator.prototype.setSourceContent(sourceFile, sourceContent) + +Set the source content for an original source file. + +* `sourceFile` the URL of the original source file. + +* `sourceContent` the content of the source file. + +```js +generator.setSourceContent("module-one.scm", + fs.readFileSync("path/to/module-one.scm")) +``` + +#### SourceMapGenerator.prototype.applySourceMap(sourceMapConsumer[, sourceFile[, sourceMapPath]]) + +Applies a SourceMap for a source file to the SourceMap. +Each mapping to the supplied source file is rewritten using the +supplied SourceMap. Note: The resolution for the resulting mappings +is the minimum of this map and the supplied map. + +* `sourceMapConsumer`: The SourceMap to be applied. + +* `sourceFile`: Optional. The filename of the source file. + If omitted, sourceMapConsumer.file will be used, if it exists. + Otherwise an error will be thrown. + +* `sourceMapPath`: Optional. The dirname of the path to the SourceMap + to be applied. If relative, it is relative to the SourceMap. + + This parameter is needed when the two SourceMaps aren't in the same + directory, and the SourceMap to be applied contains relative source + paths. If so, those relative source paths need to be rewritten + relative to the SourceMap. + + If omitted, it is assumed that both SourceMaps are in the same directory, + thus not needing any rewriting. (Supplying `'.'` has the same effect.) + +#### SourceMapGenerator.prototype.toString() + +Renders the source map being generated to a string. + +```js +generator.toString() +// '{"version":3,"sources":["module-one.scm"],"names":[],"mappings":"...snip...","file":"my-generated-javascript-file.js","sourceRoot":"http://example.com/app/js/"}' +``` + +### SourceNode + +SourceNodes provide a way to abstract over interpolating and/or concatenating +snippets of generated JavaScript source code, while maintaining the line and +column information associated between those snippets and the original source +code. This is useful as the final intermediate representation a compiler might +use before outputting the generated JS and source map. + +#### new SourceNode([line, column, source[, chunk[, name]]]) + +* `line`: The original line number associated with this source node, or null if + it isn't associated with an original line. The line number is 1-based. + +* `column`: The original column number associated with this source node, or null + if it isn't associated with an original column. The column number + is 0-based. + +* `source`: The original source's filename; null if no filename is provided. + +* `chunk`: Optional. Is immediately passed to `SourceNode.prototype.add`, see + below. + +* `name`: Optional. The original identifier. + +```js +var node = new SourceNode(1, 2, "a.cpp", [ + new SourceNode(3, 4, "b.cpp", "extern int status;\n"), + new SourceNode(5, 6, "c.cpp", "std::string* make_string(size_t n);\n"), + new SourceNode(7, 8, "d.cpp", "int main(int argc, char** argv) {}\n"), +]); +``` + +#### SourceNode.fromStringWithSourceMap(code, sourceMapConsumer[, relativePath]) + +Creates a SourceNode from generated code and a SourceMapConsumer. + +* `code`: The generated code + +* `sourceMapConsumer` The SourceMap for the generated code + +* `relativePath` The optional path that relative sources in `sourceMapConsumer` + should be relative to. + +```js +const consumer = await new SourceMapConsumer(fs.readFileSync("path/to/my-file.js.map", "utf8")); +const node = SourceNode.fromStringWithSourceMap(fs.readFileSync("path/to/my-file.js"), consumer); +``` + +#### SourceNode.prototype.add(chunk) + +Add a chunk of generated JS to this source node. + +* `chunk`: A string snippet of generated JS code, another instance of + `SourceNode`, or an array where each member is one of those things. + +```js +node.add(" + "); +node.add(otherNode); +node.add([leftHandOperandNode, " + ", rightHandOperandNode]); +``` + +#### SourceNode.prototype.prepend(chunk) + +Prepend a chunk of generated JS to this source node. + +* `chunk`: A string snippet of generated JS code, another instance of + `SourceNode`, or an array where each member is one of those things. + +```js +node.prepend("/** Build Id: f783haef86324gf **/\n\n"); +``` + +#### SourceNode.prototype.setSourceContent(sourceFile, sourceContent) + +Set the source content for a source file. This will be added to the +`SourceMap` in the `sourcesContent` field. + +* `sourceFile`: The filename of the source file + +* `sourceContent`: The content of the source file + +```js +node.setSourceContent("module-one.scm", + fs.readFileSync("path/to/module-one.scm")) +``` + +#### SourceNode.prototype.walk(fn) + +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. + +* `fn`: The traversal function. + +```js +var node = new SourceNode(1, 2, "a.js", [ + new SourceNode(3, 4, "b.js", "uno"), + "dos", + [ + "tres", + new SourceNode(5, 6, "c.js", "quatro") + ] +]); + +node.walk(function (code, loc) { console.log("WALK:", code, loc); }) +// WALK: uno { source: 'b.js', line: 3, column: 4, name: null } +// WALK: dos { source: 'a.js', line: 1, column: 2, name: null } +// WALK: tres { source: 'a.js', line: 1, column: 2, name: null } +// WALK: quatro { source: 'c.js', line: 5, column: 6, name: null } +``` + +#### SourceNode.prototype.walkSourceContents(fn) + +Walk over the tree of SourceNodes. The walking function is called for each +source file content and is passed the filename and source content. + +* `fn`: The traversal function. + +```js +var a = new SourceNode(1, 2, "a.js", "generated from a"); +a.setSourceContent("a.js", "original a"); +var b = new SourceNode(1, 2, "b.js", "generated from b"); +b.setSourceContent("b.js", "original b"); +var c = new SourceNode(1, 2, "c.js", "generated from c"); +c.setSourceContent("c.js", "original c"); + +var node = new SourceNode(null, null, null, [a, b, c]); +node.walkSourceContents(function (source, contents) { console.log("WALK:", source, ":", contents); }) +// WALK: a.js : original a +// WALK: b.js : original b +// WALK: c.js : original c +``` + +#### SourceNode.prototype.join(sep) + +Like `Array.prototype.join` except for SourceNodes. Inserts the separator +between each of this source node's children. + +* `sep`: The separator. + +```js +var lhs = new SourceNode(1, 2, "a.rs", "my_copy"); +var operand = new SourceNode(3, 4, "a.rs", "="); +var rhs = new SourceNode(5, 6, "a.rs", "orig.clone()"); + +var node = new SourceNode(null, null, null, [ lhs, operand, rhs ]); +var joinedNode = node.join(" "); +``` + +#### SourceNode.prototype.replaceRight(pattern, replacement) + +Call `String.prototype.replace` on the very right-most source snippet. Useful +for trimming white space from the end of a source node, etc. + +* `pattern`: The pattern to replace. + +* `replacement`: The thing to replace the pattern with. + +```js +// Trim trailing white space. +node.replaceRight(/\s*$/, ""); +``` + +#### SourceNode.prototype.toString() + +Return the string representation of this source node. Walks over the tree and +concatenates all the various snippets together to one string. + +```js +var node = new SourceNode(1, 2, "a.js", [ + new SourceNode(3, 4, "b.js", "uno"), + "dos", + [ + "tres", + new SourceNode(5, 6, "c.js", "quatro") + ] +]); + +node.toString() +// 'unodostresquatro' +``` + +#### SourceNode.prototype.toStringWithSourceMap([startOfSourceMap]) + +Returns the string representation of this tree of source nodes, plus a +SourceMapGenerator which contains all the mappings between the generated and +original sources. + +The arguments are the same as those to `new SourceMapGenerator`. + +```js +var node = new SourceNode(1, 2, "a.js", [ + new SourceNode(3, 4, "b.js", "uno"), + "dos", + [ + "tres", + new SourceNode(5, 6, "c.js", "quatro") + ] +]); + +node.toStringWithSourceMap({ file: "my-output-file.js" }) +// { code: 'unodostresquatro', +// map: [object SourceMapGenerator] } +``` diff --git a/packages/uni-stacktracey/lib/source-map/dist/source-map.js 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If so, pass null for the original mapping instead of an object with empty or null values.");if(e&&"line"in e&&"column"in e&&e.line>0&&e.column>=0&&!n&&!t&&!r);else if(!(e&&"line"in e&&"column"in e&&n&&"line"in n&&"column"in n&&e.line>0&&e.column>=0&&n.line>0&&n.column>=0&&t))throw new Error("Invalid mapping: "+JSON.stringify({generated:e,source:t,original:n,name:r}))}_serializeMappings(){let e,n,t,i,s=0,l=1,a=0,u=0,c=0,g=0,p="";const h=this._mappings.toArray();for(let m=0,d=h.length;m0){if(!o.compareByGeneratedPositionsInflated(n,h[m-1]))continue;e+=","}e+=r.encode(n.generatedColumn-s),s=n.generatedColumn,null!=n.source&&(i=this._sources.indexOf(n.source),e+=r.encode(i-g),g=i,e+=r.encode(n.originalLine-1-u),u=n.originalLine-1,e+=r.encode(n.originalColumn-a),a=n.originalColumn,null!=n.name&&(t=this._names.indexOf(n.name),e+=r.encode(t-c),c=t)),p+=e}return p}_generateSourcesContent(e,n){return e.map((function(e){if(!this._sourcesContents)return null;null!=n&&(e=o.relative(n,e));const t=o.toSetString(e);return Object.prototype.hasOwnProperty.call(this._sourcesContents,t)?this._sourcesContents[t]:null}),this)}toJSON(){const e={version:this._version,sources:this._sources.toArray(),names:this._names.toArray(),mappings:this._serializeMappings()};return null!=this._file&&(e.file=this._file),null!=this._sourceRoot&&(e.sourceRoot=this._sourceRoot),this._sourcesContents&&(e.sourcesContent=this._generateSourcesContent(e.sources,e.sourceRoot)),e}toString(){return JSON.stringify(this.toJSON())}}l.prototype._version=3,n.SourceMapGenerator=l},function(e,n,t){const r=t(6);n.encode=function(e){let n,t="",o=function(e){return e<0?1+(-e<<1):0+(e<<1)}(e);do{n=31&o,o>>>=5,o>0&&(n|=32),t+=r.encode(n)}while(o>0);return t}},function(e,n){class t{constructor(){this._array=[],this._set=new Map}static fromArray(e,n){const r=new t;for(let t=0,o=e.length;t=0)return n;throw new Error('"'+e+'" is not in the set.')}at(e){if(e>=0&&ee.arrayBuffer());if(n instanceof ArrayBuffer)return Promise.resolve(n);throw new Error("You must provide the string URL or ArrayBuffer contents of lib/mappings.wasm by calling SourceMapConsumer.initialize({ 'lib/mappings.wasm': ... }) before using SourceMapConsumer")},e.exports.initialize=e=>n=e}else{const r=t(10),o=t(11);e.exports=function(){return new Promise((e,t)=>{const i=o.join(n,"mappings.wasm");r.readFile(i,null,(n,r)=>{n?t(n):e(r.buffer)})})},e.exports.initialize=e=>{console.debug("SourceMapConsumer.initialize is a no-op when running in node.js")}}}).call(this,"/")},function(e,n,t){n.SourceMapGenerator=t(1).SourceMapGenerator,n.SourceMapConsumer=t(8).SourceMapConsumer,n.SourceNode=t(13).SourceNode},function(e,n){const t="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/".split("");n.encode=function(e){if(0<=e&&et||o==t&&s>=i||r.compareByGeneratedPositionsInflated(e,n)<=0}(this._last,e)?(this._sorted=!1,this._array.push(e)):(this._last=e,this._array.push(e))}toArray(){return this._sorted||(this._array.sort(r.compareByGeneratedPositionsInflated),this._sorted=!0),this._array}}},function(e,n,t){const r=t(0),o=t(9),i=t(3).ArraySet,s=(t(2),t(4)),l=t(12),a=Symbol("smcInternal");class u{constructor(e,n){return e==a?Promise.resolve(this):function(e,n){let t=e;"string"==typeof e&&(t=r.parseSourceMapInput(e));const o=null!=t.sections?new g(t,n):new c(t,n);return Promise.resolve(o)}(e,n)}static initialize(e){s.initialize(e["lib/mappings.wasm"])}static fromSourceMap(e,n){return function(e,n){return c.fromSourceMap(e,n)}(e,n)}static async with(e,n,t){const r=await new u(e,n);try{return await t(r)}finally{r.destroy()}}_parseMappings(e,n){throw new Error("Subclasses must implement _parseMappings")}eachMapping(e,n,t){throw new Error("Subclasses must implement eachMapping")}allGeneratedPositionsFor(e){throw new Error("Subclasses must implement allGeneratedPositionsFor")}destroy(){throw new Error("Subclasses must implement destroy")}}u.prototype._version=3,u.GENERATED_ORDER=1,u.ORIGINAL_ORDER=2,u.GREATEST_LOWER_BOUND=1,u.LEAST_UPPER_BOUND=2,n.SourceMapConsumer=u;class c extends u{constructor(e,n){return super(a).then(t=>{let o=e;"string"==typeof e&&(o=r.parseSourceMapInput(e));const s=r.getArg(o,"version");let a=r.getArg(o,"sources");const u=r.getArg(o,"names",[]);let c=r.getArg(o,"sourceRoot",null);const g=r.getArg(o,"sourcesContent",null),p=r.getArg(o,"mappings"),h=r.getArg(o,"file",null);if(s!=t._version)throw new Error("Unsupported version: "+s);return c&&(c=r.normalize(c)),a=a.map(String).map(r.normalize).map((function(e){return c&&r.isAbsolute(c)&&r.isAbsolute(e)?r.relative(c,e):e})),t._names=i.fromArray(u.map(String),!0),t._sources=i.fromArray(a,!0),t._absoluteSources=t._sources.toArray().map((function(e){return r.computeSourceURL(c,e,n)})),t.sourceRoot=c,t.sourcesContent=g,t._mappings=p,t._sourceMapURL=n,t.file=h,t._computedColumnSpans=!1,t._mappingsPtr=0,t._wasm=null,l().then(e=>(t._wasm=e,t))})}_findSourceIndex(e){let n=e;if(null!=this.sourceRoot&&(n=r.relative(this.sourceRoot,n)),this._sources.has(n))return this._sources.indexOf(n);for(let n=0;n{null!==n.source&&(n.source=this._sources.at(n.source),n.source=r.computeSourceURL(s,n.source,this._sourceMapURL),null!==n.name&&(n.name=this._names.at(n.name))),e.call(o,n)},()=>{switch(i){case u.GENERATED_ORDER:this._wasm.exports.by_generated_location(this._getMappingsPtr());break;case u.ORIGINAL_ORDER:this._wasm.exports.by_original_location(this._getMappingsPtr());break;default:throw new Error("Unknown order of iteration.")}})}allGeneratedPositionsFor(e){let n=r.getArg(e,"source");const t=r.getArg(e,"line"),o=e.column||0;if(n=this._findSourceIndex(n),n<0)return[];if(t<1)throw new Error("Line numbers must be >= 1");if(o<0)throw new Error("Column numbers must be >= 0");const i=[];return this._wasm.withMappingCallback(e=>{let n=e.lastGeneratedColumn;this._computedColumnSpans&&null===n&&(n=1/0),i.push({line:e.generatedLine,column:e.generatedColumn,lastColumn:n})},()=>{this._wasm.exports.all_generated_locations_for(this._getMappingsPtr(),n,t-1,"column"in e,o)}),i}destroy(){0!==this._mappingsPtr&&(this._wasm.exports.free_mappings(this._mappingsPtr),this._mappingsPtr=0)}computeColumnSpans(){this._computedColumnSpans||(this._wasm.exports.compute_column_spans(this._getMappingsPtr()),this._computedColumnSpans=!0)}originalPositionFor(e){const n={generatedLine:r.getArg(e,"line"),generatedColumn:r.getArg(e,"column")};if(n.generatedLine<1)throw new Error("Line numbers must be >= 1");if(n.generatedColumn<0)throw new Error("Column numbers must be >= 0");let t,o=r.getArg(e,"bias",u.GREATEST_LOWER_BOUND);if(null==o&&(o=u.GREATEST_LOWER_BOUND),this._wasm.withMappingCallback(e=>t=e,()=>{this._wasm.exports.original_location_for(this._getMappingsPtr(),n.generatedLine-1,n.generatedColumn,o)}),t&&t.generatedLine===n.generatedLine){let e=r.getArg(t,"source",null);null!==e&&(e=this._sources.at(e),e=r.computeSourceURL(this.sourceRoot,e,this._sourceMapURL));let n=r.getArg(t,"name",null);return null!==n&&(n=this._names.at(n)),{source:e,line:r.getArg(t,"originalLine",null),column:r.getArg(t,"originalColumn",null),name:n}}return{source:null,line:null,column:null,name:null}}hasContentsOfAllSources(){return!!this.sourcesContent&&(this.sourcesContent.length>=this._sources.size()&&!this.sourcesContent.some((function(e){return null==e})))}sourceContentFor(e,n){if(!this.sourcesContent)return null;const t=this._findSourceIndex(e);if(t>=0)return this.sourcesContent[t];let o,i=e;if(null!=this.sourceRoot&&(i=r.relative(this.sourceRoot,i)),null!=this.sourceRoot&&(o=r.urlParse(this.sourceRoot))){const e=i.replace(/^file:\/\//,"");if("file"==o.scheme&&this._sources.has(e))return this.sourcesContent[this._sources.indexOf(e)];if((!o.path||"/"==o.path)&&this._sources.has("/"+i))return this.sourcesContent[this._sources.indexOf("/"+i)]}if(n)return null;throw new Error('"'+i+'" is not in the SourceMap.')}generatedPositionFor(e){let n=r.getArg(e,"source");if(n=this._findSourceIndex(n),n<0)return{line:null,column:null,lastColumn:null};const t={source:n,originalLine:r.getArg(e,"line"),originalColumn:r.getArg(e,"column")};if(t.originalLine<1)throw new Error("Line numbers must be >= 1");if(t.originalColumn<0)throw new Error("Column numbers must be >= 0");let o,i=r.getArg(e,"bias",u.GREATEST_LOWER_BOUND);if(null==i&&(i=u.GREATEST_LOWER_BOUND),this._wasm.withMappingCallback(e=>o=e,()=>{this._wasm.exports.generated_location_for(this._getMappingsPtr(),t.source,t.originalLine-1,t.originalColumn,i)}),o&&o.source===t.source){let e=o.lastGeneratedColumn;return this._computedColumnSpans&&null===e&&(e=1/0),{line:r.getArg(o,"generatedLine",null),column:r.getArg(o,"generatedColumn",null),lastColumn:e}}return{line:null,column:null,lastColumn:null}}}c.prototype.consumer=u,n.BasicSourceMapConsumer=c;class g extends u{constructor(e,n){return super(a).then(t=>{let o=e;"string"==typeof e&&(o=r.parseSourceMapInput(e));const s=r.getArg(o,"version"),l=r.getArg(o,"sections");if(s!=t._version)throw new Error("Unsupported version: "+s);t._sources=new i,t._names=new i,t.__generatedMappings=null,t.__originalMappings=null,t.__generatedMappingsUnsorted=null,t.__originalMappingsUnsorted=null;let a={line:-1,column:0};return Promise.all(l.map(e=>{if(e.url)throw new Error("Support for url field in sections not implemented.");const t=r.getArg(e,"offset"),o=r.getArg(t,"line"),i=r.getArg(t,"column");if(o({generatedOffset:{generatedLine:o+1,generatedColumn:i+1},consumer:e}))})).then(e=>(t._sections=e,t))})}get _generatedMappings(){return this.__generatedMappings||this._sortGeneratedMappings(),this.__generatedMappings}get _originalMappings(){return this.__originalMappings||this._sortOriginalMappings(),this.__originalMappings}get _generatedMappingsUnsorted(){return this.__generatedMappingsUnsorted||this._parseMappings(this._mappings,this.sourceRoot),this.__generatedMappingsUnsorted}get _originalMappingsUnsorted(){return this.__originalMappingsUnsorted||this._parseMappings(this._mappings,this.sourceRoot),this.__originalMappingsUnsorted}_sortGeneratedMappings(){const e=this._generatedMappingsUnsorted;e.sort(r.compareByGeneratedPositionsDeflated),this.__generatedMappings=e}_sortOriginalMappings(){const e=this._originalMappingsUnsorted;e.sort(r.compareByOriginalPositions),this.__originalMappings=e}get sources(){const e=[];for(let n=0;ni.push(e));for(let e=0;e= 1");if(t.originalColumn<0)throw new Error("Column numbers must be >= 0");const i=[];let s=this._findMapping(t,this._originalMappings,"originalLine","originalColumn",r.compareByOriginalPositions,o.LEAST_UPPER_BOUND);if(s>=0){let t=this._originalMappings[s];if(void 0===e.column){const e=t.originalLine;for(;t&&t.originalLine===e;){let e=t.lastGeneratedColumn;this._computedColumnSpans&&null===e&&(e=1/0),i.push({line:r.getArg(t,"generatedLine",null),column:r.getArg(t,"generatedColumn",null),lastColumn:e}),t=this._originalMappings[++s]}}else{const e=t.originalColumn;for(;t&&t.originalLine===n&&t.originalColumn==e;){let e=t.lastGeneratedColumn;this._computedColumnSpans&&null===e&&(e=1/0),i.push({line:r.getArg(t,"generatedLine",null),column:r.getArg(t,"generatedColumn",null),lastColumn:e}),t=this._originalMappings[++s]}}}return i}destroy(){for(let e=0;e0?r-a>1?e(a,r,o,i,s,l):l==n.LEAST_UPPER_BOUND?r1?e(t,a,o,i,s,l):l==n.LEAST_UPPER_BOUND?a:t<0?-1:t}(-1,t.length,e,t,r,o||n.GREATEST_LOWER_BOUND);if(i<0)return-1;for(;i-1>=0&&0===r(t[i],t[i-1],!0);)--i;return i}},function(n,t){n.exports=e},function(e,t){e.exports=n},function(e,n,t){const r=t(4);function o(){this.generatedLine=0,this.generatedColumn=0,this.lastGeneratedColumn=null,this.source=null,this.originalLine=null,this.originalColumn=null,this.name=null}let i=null;e.exports=function(){if(i)return i;const e=[];return i=r().then(n=>WebAssembly.instantiate(n,{env:{mapping_callback(n,t,r,i,s,l,a,u,c,g){const p=new o;p.generatedLine=n+1,p.generatedColumn=t,r&&(p.lastGeneratedColumn=i-1),s&&(p.source=l,p.originalLine=a+1,p.originalColumn=u,c&&(p.name=g)),e[e.length-1](p)},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(n=>({exports:n.instance.exports,withMappingCallback:(n,t)=>{e.push(n);try{t()}finally{e.pop()}}})).then(null,e=>{throw i=null,e}),i}},function(e,n,t){const r=t(1).SourceMapGenerator,o=t(0),i=/(\r?\n)/,s="$$$isSourceNode$$$";class l{constructor(e,n,t,r,o){this.children=[],this.sourceContents={},this.line=null==e?null:e,this.column=null==n?null:n,this.source=null==t?null:t,this.name=null==o?null:o,this[s]=!0,null!=r&&this.add(r)}static fromStringWithSourceMap(e,n,t){const r=new l,s=e.split(i);let a=0;const u=function(){return e()+(e()||"");function e(){return a=0;n--)this.prepend(e[n]);else{if(!e[s]&&"string"!=typeof e)throw new TypeError("Expected a SourceNode, string, or an array of SourceNodes and strings. Got "+e);this.children.unshift(e)}return this}walk(e){let n;for(let t=0,r=this.children.length;t0){for(n=[],t=0;t= 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 diff --git a/packages/uni-stacktracey/lib/source-map/lib/base64-vlq.js b/packages/uni-stacktracey/lib/source-map/lib/base64-vlq.js new file mode 100644 index 0000000000000000000000000000000000000000..e78e47b6f9ec68125aa38080b0c4126c263658e0 --- /dev/null +++ b/packages/uni-stacktracey/lib/source-map/lib/base64-vlq.js @@ -0,0 +1,107 @@ +/* -*- 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 = require('./base64') + +// 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 +} diff --git a/packages/uni-stacktracey/lib/source-map/lib/base64.js b/packages/uni-stacktracey/lib/source-map/lib/base64.js new file mode 100644 index 0000000000000000000000000000000000000000..6fccfd33e0c30882422910eb13068652a7f14349 --- /dev/null +++ b/packages/uni-stacktracey/lib/source-map/lib/base64.js @@ -0,0 +1,19 @@ +/* -*- 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) +} diff --git a/packages/uni-stacktracey/lib/source-map/lib/binary-search.js b/packages/uni-stacktracey/lib/source-map/lib/binary-search.js new file mode 100644 index 0000000000000000000000000000000000000000..44a9effec03a4ff5cbfd1a0fedc963f2cb1540bc --- /dev/null +++ b/packages/uni-stacktracey/lib/source-map/lib/binary-search.js @@ -0,0 +1,113 @@ +/* -*- 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 +} diff --git a/packages/uni-stacktracey/lib/source-map/lib/mapping-list.js b/packages/uni-stacktracey/lib/source-map/lib/mapping-list.js new file mode 100644 index 0000000000000000000000000000000000000000..3058fcdfcd52cccbc568872d52e6ee823b5ae0a0 --- /dev/null +++ b/packages/uni-stacktracey/lib/source-map/lib/mapping-list.js @@ -0,0 +1,83 @@ +/* -*- 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 = require('./util') + +/** + * 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 diff --git a/packages/uni-stacktracey/lib/source-map/lib/mappings.wasm b/packages/uni-stacktracey/lib/source-map/lib/mappings.wasm new file mode 100644 index 0000000000000000000000000000000000000000..3515370723369347c024869dc4dbb3318c45a294 Binary files /dev/null and b/packages/uni-stacktracey/lib/source-map/lib/mappings.wasm differ diff --git a/packages/uni-stacktracey/lib/source-map/lib/read-wasm.js b/packages/uni-stacktracey/lib/source-map/lib/read-wasm.js new file mode 100644 index 0000000000000000000000000000000000000000..801989825037ac1c59a5064f1578266373af2ca6 --- /dev/null +++ b/packages/uni-stacktracey/lib/source-map/lib/read-wasm.js @@ -0,0 +1,51 @@ +/* Determine browser vs node environment by testing the default top level context. Solution courtesy of: https://stackoverflow.com/questions/17575790/environment-detection-node-js-or-browser */ +if (__PLATFORM_WEB__) { + // Web version of reading a wasm file into an array buffer. + + let mappingsWasm = null + + module.exports = function readWasm() { + if (typeof mappingsWasm === 'string') { + return fetch(mappingsWasm).then((response) => response.arrayBuffer()) + } + if (mappingsWasm instanceof ArrayBuffer) { + return Promise.resolve(mappingsWasm) + } + throw new Error( + 'You must provide the string URL or ArrayBuffer contents ' + + 'of lib/mappings.wasm by calling ' + + "SourceMapConsumer.initialize({ 'lib/mappings.wasm': ... }) " + + 'before using SourceMapConsumer' + ) + } + + module.exports.initialize = (input) => (mappingsWasm = input) +} else { + // Node version of reading a wasm file into an array buffer. + const fs = require('fs') + const path = require('path') + + module.exports = function readWasm() { + return new Promise((resolve, reject) => { + const wasmPath = path.join( + __dirname, + '../lib/source-map/lib', + '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' + ) + } +} diff --git a/packages/uni-stacktracey/lib/source-map/lib/source-map-consumer.js b/packages/uni-stacktracey/lib/source-map/lib/source-map-consumer.js new file mode 100644 index 0000000000000000000000000000000000000000..d86b2a9264d561b2ac2769949052c3fec70f0900 --- /dev/null +++ b/packages/uni-stacktracey/lib/source-map/lib/source-map-consumer.js @@ -0,0 +1,1302 @@ +/* -*- 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 = require('./util') +const binarySearch = require('./binary-search') +const ArraySet = require('./array-set').ArraySet +const base64VLQ = require('./base64-vlq') // eslint-disable-line no-unused-vars +const readWasm = require('./read-wasm') +const wasm = require('./wasm') + +const INTERNAL = Symbol('smcInternal') + +class SourceMapConsumer { + constructor(aSourceMap, aSourceMapURL) { + // If the constructor was called by super(), just return Promise. + // 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 async with(rawSourceMap, sourceMapUrl, f) { + const consumer = await new SourceMapConsumer(rawSourceMap, sourceMapUrl) + try { + return await f(consumer) + } finally { + consumer.destroy() + } + } + + /** + * 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) +} diff --git a/packages/uni-stacktracey/lib/source-map/lib/source-map-generator.js b/packages/uni-stacktracey/lib/source-map/lib/source-map-generator.js new file mode 100644 index 0000000000000000000000000000000000000000..af972408e441b887502016468c679162ed9a8d07 --- /dev/null +++ b/packages/uni-stacktracey/lib/source-map/lib/source-map-generator.js @@ -0,0 +1,439 @@ +/* -*- 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 = require('./base64-vlq') +const util = require('./util') +const ArraySet = require('./array-set').ArraySet +const MappingList = require('./mapping-list').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 diff --git a/packages/uni-stacktracey/lib/source-map/lib/source-node.js b/packages/uni-stacktracey/lib/source-map/lib/source-node.js new file mode 100644 index 0000000000000000000000000000000000000000..afeb6a79d3825a58211c9b05bb312653074f0d25 --- /dev/null +++ b/packages/uni-stacktracey/lib/source-map/lib/source-node.js @@ -0,0 +1,430 @@ +/* -*- 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 = require('./source-map-generator').SourceMapGenerator +const util = require('./util') + +// 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 diff --git a/packages/uni-stacktracey/lib/source-map/lib/util.js b/packages/uni-stacktracey/lib/source-map/lib/util.js new file mode 100644 index 0000000000000000000000000000000000000000..23679a5b8df63d47a5f505cb18b4c20175df808b --- /dev/null +++ b/packages/uni-stacktracey/lib/source-map/lib/util.js @@ -0,0 +1,555 @@ +/* -*- 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 '/..' 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 diff --git a/packages/uni-stacktracey/lib/source-map/lib/wasm.js b/packages/uni-stacktracey/lib/source-map/lib/wasm.js new file mode 100644 index 0000000000000000000000000000000000000000..8b21cf102d41f93c1de53a12d7027cfff5ef0cca --- /dev/null +++ b/packages/uni-stacktracey/lib/source-map/lib/wasm.js @@ -0,0 +1,138 @@ +const readWasm = require('./read-wasm') + +/** + * 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 +} diff --git a/packages/uni-stacktracey/lib/source-map/package.json b/packages/uni-stacktracey/lib/source-map/package.json new file mode 100644 index 0000000000000000000000000000000000000000..1d67accb28a655317e7c152ccc8eb9bcd34eac01 --- /dev/null +++ b/packages/uni-stacktracey/lib/source-map/package.json @@ -0,0 +1,91 @@ +{ + "name": "source-map", + "description": "Generates and consumes source maps", + "version": "0.7.4", + "homepage": "https://github.com/mozilla/source-map", + "author": "Nick Fitzgerald ", + "contributors": [ + "Tobias Koppers ", + "Duncan Beevers ", + "Stephen Crane ", + "Ryan Seddon ", + "Miles Elam ", + "Mihai Bazon ", + "Michael Ficarra ", + "Todd Wolfson ", + "Alexander Solovyov ", + "Felix Gnass ", + "Conrad Irwin ", + "usrbincc ", + "David Glasser ", + "Chase Douglas ", + "Evan Wallace ", + "Heather Arthur ", + "Hugh Kennedy ", + "David Glasser ", + "Simon Lydell ", + "Jmeas Smith ", + "Michael Z Goddard ", + "azu ", + "John Gozde ", + "Adam Kirkton ", + "Chris Montgomery ", + "J. Ryan Stinnett ", + "Jack Herrington ", + "Chris Truter ", + "Daniel Espeset ", + "Jamie Wong ", + "Eddy Bruël ", + "Hawken Rives ", + "Gilad Peleg ", + "djchie ", + "Gary Ye ", + "Nicolas Lalevée " + ], + "repository": { + "type": "git", + "url": "http://github.com/mozilla/source-map.git" + }, + "main": "./source-map.js", + "types": "./source-map.d.ts", + "files": [ + "source-map.js", + "source-map.d.ts", + "lib/", + "dist/source-map.js" + ], + "engines": { + "node": ">= 8" + }, + "license": "BSD-3-Clause", + "scripts": { + "lint": "eslint *.js lib/ test/", + "prebuild": "npm run lint", + "build": "webpack --color", + "pretest": "npm run build", + "test": "node test/run-tests.js", + "precoverage": "npm run build", + "coverage": "nyc node test/run-tests.js", + "setup": "mkdir -p coverage && cp -n .waiting.html coverage/index.html || true", + "dev:live": "live-server --port=4103 --ignorePattern='(js|css|png)$' coverage", + "dev:watch": "watch 'npm run coverage' lib/ test/", + "predev": "npm run setup", + "dev": "npm-run-all -p --silent dev:*", + "clean": "rm -rf coverage .nyc_output", + "toc": "doctoc --title '## Table of Contents' README.md && doctoc --title '## Table of Contents' CONTRIBUTING.md" + }, + "devDependencies": { + "doctoc": "^1.3.1", + "eslint": "^4.19.1", + "live-server": "^1.2.0", + "npm-run-all": "^4.1.2", + "nyc": "^11.7.1", + "watch": "^1.0.2", + "webpack": "^4.9.1", + "webpack-cli": "^3.1" + }, + "nyc": { + "reporter": "html" + }, + "typings": "source-map" +} diff --git a/packages/uni-stacktracey/lib/source-map/source-map.d.ts b/packages/uni-stacktracey/lib/source-map/source-map.d.ts new file mode 100644 index 0000000000000000000000000000000000000000..9b80fd10c89aa79817ec0aa70863ba5019c507e1 --- /dev/null +++ b/packages/uni-stacktracey/lib/source-map/source-map.d.ts @@ -0,0 +1,399 @@ +// Type definitions for source-map 0.7 +// Project: https://github.com/mozilla/source-map +// Definitions by: Morten Houston Ludvigsen , +// Ron Buckton , +// John Vilk +// Definitions: https://github.com/mozilla/source-map +export type SourceMapUrl = string + +export interface StartOfSourceMap { + file?: string + sourceRoot?: string + skipValidation?: boolean +} + +export interface RawSourceMap { + version: number + sources: string[] + names: string[] + sourceRoot?: string + sourcesContent?: string[] + mappings: string + file: string +} + +export interface RawIndexMap extends StartOfSourceMap { + version: number + sections: RawSection[] +} + +export interface RawSection { + offset: Position + map: RawSourceMap +} + +export interface Position { + line: number + column: number +} + +export interface NullablePosition { + line: number | null + column: number | null + lastColumn: number | null +} + +export interface MappedPosition { + source: string + line: number + column: number + name?: string +} + +export interface NullableMappedPosition { + source: string | null + line: number | null + column: number | null + name: string | null +} + +export interface MappingItem { + source: string + generatedLine: number + generatedColumn: number + originalLine: number + originalColumn: number + name: string +} + +export interface Mapping { + generated: Position + original: Position + source: string + name?: string +} + +export interface CodeWithSourceMap { + code: string + map: SourceMapGenerator +} + +export interface SourceMapConsumer { + /** + * Compute the last column for each generated mapping. The last column is + * inclusive. + */ + computeColumnSpans(): void + + /** + * 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. + * - column: The column number in the generated source. + * - 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. + * - column: The column number in the original source, or null. + * - name: The original identifier, or null. + */ + originalPositionFor( + generatedPosition: Position & { bias?: number } + ): NullableMappedPosition + + /** + * 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. + * - column: The column number in the original source. + * - 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. + * - column: The column number in the generated source, or null. + */ + generatedPositionFor( + originalPosition: MappedPosition & { bias?: number } + ): NullablePosition + + /** + * 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. + * - column: Optional. the column number in the original source. + * + * and an array of objects is returned, each with the following properties: + * + * - line: The line number in the generated source, or null. + * - column: The column number in the generated source, or null. + */ + allGeneratedPositionsFor(originalPosition: MappedPosition): NullablePosition[] + + /** + * Return true if we have the source content for every source in the source + * map, false otherwise. + */ + hasContentsOfAllSources(): boolean + + /** + * 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(source: string, returnNullOnMissing?: boolean): string | null + + /** + * Iterate over each mapping between an original source/line/column and a + * generated line/column in this source map. + * + * @param callback + * The function that is called with each mapping. + * @param context + * Optional. If specified, this object will be the value of `this` every + * time that `aCallback` is called. + * @param order + * 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( + callback: (mapping: MappingItem) => void, + context?: any, + order?: number + ): void + /** + * Free this source map consumer's associated wasm data that is manually-managed. + * Alternatively, you can use SourceMapConsumer.with to avoid needing to remember to call destroy. + */ + destroy(): void +} + +export interface SourceMapConsumerConstructor { + prototype: SourceMapConsumer + + GENERATED_ORDER: number + ORIGINAL_ORDER: number + GREATEST_LOWER_BOUND: number + LEAST_UPPER_BOUND: number + + new ( + rawSourceMap: RawSourceMap, + sourceMapUrl?: SourceMapUrl + ): Promise + new ( + rawSourceMap: RawIndexMap, + sourceMapUrl?: SourceMapUrl + ): Promise + new ( + rawSourceMap: RawSourceMap | RawIndexMap | string, + sourceMapUrl?: SourceMapUrl + ): Promise + + /** + * Create a BasicSourceMapConsumer from a SourceMapGenerator. + * + * @param sourceMap + * The source map that will be consumed. + */ + fromSourceMap( + sourceMap: SourceMapGenerator, + sourceMapUrl?: SourceMapUrl + ): Promise + + /** + * 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); + * ``` + */ + with( + rawSourceMap: RawSourceMap | RawIndexMap | string, + sourceMapUrl: SourceMapUrl | null | undefined, + callback: ( + consumer: BasicSourceMapConsumer | IndexedSourceMapConsumer + ) => Promise | T + ): Promise +} + +export const SourceMapConsumer: SourceMapConsumerConstructor + +export interface BasicSourceMapConsumer extends SourceMapConsumer { + file: string + sourceRoot: string + sources: string[] + sourcesContent: string[] +} + +export interface BasicSourceMapConsumerConstructor { + prototype: BasicSourceMapConsumer + + new (rawSourceMap: RawSourceMap | string): Promise + + /** + * Create a BasicSourceMapConsumer from a SourceMapGenerator. + * + * @param sourceMap + * The source map that will be consumed. + */ + fromSourceMap(sourceMap: SourceMapGenerator): Promise +} + +export const BasicSourceMapConsumer: BasicSourceMapConsumerConstructor + +export interface IndexedSourceMapConsumer extends SourceMapConsumer { + sources: string[] +} + +export interface IndexedSourceMapConsumerConstructor { + prototype: IndexedSourceMapConsumer + + new (rawSourceMap: RawIndexMap | string): Promise +} + +export const IndexedSourceMapConsumer: IndexedSourceMapConsumerConstructor + +export class SourceMapGenerator { + constructor(startOfSourceMap?: StartOfSourceMap) + + /** + * Creates a new SourceMapGenerator based on a SourceMapConsumer + * + * @param sourceMapConsumer The SourceMap. + */ + static fromSourceMap(sourceMapConsumer: SourceMapConsumer): SourceMapGenerator + + /** + * 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(mapping: Mapping): void + + /** + * Set the source content for a source file. + */ + setSourceContent(sourceFile: string, sourceContent: string): void + + /** + * 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 sourceMapConsumer The source map to be applied. + * @param sourceFile Optional. The filename of the source file. + * If omitted, SourceMapConsumer's file property will be used. + * @param sourceMapPath 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( + sourceMapConsumer: SourceMapConsumer, + sourceFile?: string, + sourceMapPath?: string + ): void + + toString(): string + + toJSON(): RawSourceMap +} + +export class SourceNode { + children: SourceNode[] + sourceContents: any + line: number + column: number + source: string + name: string + + constructor() + constructor( + line: number | null, + column: number | null, + source: string | null, + chunks?: Array | SourceNode | string, + name?: string + ) + + static fromStringWithSourceMap( + code: string, + sourceMapConsumer: SourceMapConsumer, + relativePath?: string + ): SourceNode + + add(chunk: Array | SourceNode | string): SourceNode + + prepend(chunk: Array | SourceNode | string): SourceNode + + setSourceContent(sourceFile: string, sourceContent: string): void + + walk(fn: (chunk: string, mapping: MappedPosition) => void): void + + walkSourceContents(fn: (file: string, content: string) => void): void + + join(sep: string): SourceNode + + replaceRight(pattern: string, replacement: string): SourceNode + + toString(): string + + toStringWithSourceMap(startOfSourceMap?: StartOfSourceMap): CodeWithSourceMap +} diff --git a/packages/uni-stacktracey/lib/source-map/source-map.js b/packages/uni-stacktracey/lib/source-map/source-map.js new file mode 100644 index 0000000000000000000000000000000000000000..b58ccc589540967a06ae4e57bcbea483c464fdf0 --- /dev/null +++ b/packages/uni-stacktracey/lib/source-map/source-map.js @@ -0,0 +1,10 @@ +/* + * 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 = + require('./lib/source-map-generator').SourceMapGenerator +exports.SourceMapConsumer = + require('./lib/source-map-consumer').SourceMapConsumer +exports.SourceNode = require('./lib/source-node').SourceNode diff --git a/packages/uni-stacktracey/package.json b/packages/uni-stacktracey/package.json index d9b5f3ca0b220b11aa82da2ef9b47093305cc40d..aeac2d005258a4455ff26965507d279624d2b78e 100644 --- a/packages/uni-stacktracey/package.json +++ b/packages/uni-stacktracey/package.json @@ -19,9 +19,6 @@ "url": "https://github.com/dcloudio/uni-app/issues" }, "gitHead": "33e807d66e1fe47e2ee08ad9c59247e37b8884da", - "dependencies": { - "source-map": "^0.7.3" - }, "devDependencies": { "@dcloudio/types": "^2.6.12" }