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Diffstat (limited to 'Source/WebInspectorUI/UserInterface/SourceMap.js')
| -rw-r--r-- | Source/WebInspectorUI/UserInterface/SourceMap.js | 333 |
1 files changed, 0 insertions, 333 deletions
diff --git a/Source/WebInspectorUI/UserInterface/SourceMap.js b/Source/WebInspectorUI/UserInterface/SourceMap.js deleted file mode 100644 index b910baadd..000000000 --- a/Source/WebInspectorUI/UserInterface/SourceMap.js +++ /dev/null @@ -1,333 +0,0 @@ -/* - * Copyright (C) 2013 Apple Inc. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. 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. - * - * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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. - */ - -/** - * Implements Source Map V3 model. See http://code.google.com/p/closure-compiler/wiki/SourceMaps - * for format description. - * @constructor - * @param {string} sourceMappingURL - * @param {SourceMapV3} payload - * @param {WebInspector.Resource|WebInspector.Script} originalSourceCode - */ -WebInspector.SourceMap = function(sourceMappingURL, payload, originalSourceCode) -{ - if (!WebInspector.SourceMap.prototype._base64Map) { - const base64Digits = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; - WebInspector.SourceMap.prototype._base64Map = {}; - for (var i = 0; i < base64Digits.length; ++i) - WebInspector.SourceMap.prototype._base64Map[base64Digits.charAt(i)] = i; - } - - this._originalSourceCode = originalSourceCode || null; - this._sourceMapResources = {}; - this._sourceMapResourcesList = []; - - this._sourceMappingURL = sourceMappingURL; - this._reverseMappingsBySourceURL = {}; - this._mappings = []; - this._sources = {}; - this._sourceRoot = null; - this._sourceContentByURL = {}; - this._parseMappingPayload(payload); -} - -WebInspector.SourceMap.prototype = { - - get originalSourceCode() - { - return this._originalSourceCode; - }, - - get sourceMappingBasePathURLComponents() - { - if (this._sourceMappingURLBasePathComponents) - return this._sourceMappingURLBasePathComponents; - - if (this._sourceRoot) { - var baseURLPath = absoluteURL(this._sourceRoot, this._sourceMappingURL); - console.assert(baseURLPath); - if (baseURLPath) { - var urlComponents = parseURL(baseURLPath); - if (!/\/$/.test(urlComponents.path)) - urlComponents.path += "/"; - this._sourceMappingURLBasePathComponents = urlComponents; - return this._sourceMappingURLBasePathComponents; - } - } - - var urlComponents = parseURL(this._sourceMappingURL); - urlComponents.path = urlComponents.path.substr(0, urlComponents.path.lastIndexOf(urlComponents.lastPathComponent)); - urlComponents.lastPathComponent = null; - this._sourceMappingURLBasePathComponents = urlComponents; - return this._sourceMappingURLBasePathComponents; - }, - - get resources() - { - return this._sourceMapResourcesList; - }, - - addResource: function(resource) - { - console.assert(!(resource.url in this._sourceMapResources)); - this._sourceMapResources[resource.url] = resource; - this._sourceMapResourcesList.push(resource); - }, - - resourceForURL: function(url) - { - return this._sourceMapResources[url]; - }, - - /** - * @return {Array.<string>} - */ - sources: function() - { - return Object.keys(this._sources); - }, - - /** - * @param {string} sourceURL - * @return {string|undefined} - */ - sourceContent: function(sourceURL) - { - return this._sourceContentByURL[sourceURL]; - }, - - /** - * @param {SourceMapV3} mappingPayload - */ - _parseMappingPayload: function(mappingPayload) - { - if (mappingPayload.sections) - this._parseSections(mappingPayload.sections); - else - this._parseMap(mappingPayload, 0, 0); - }, - - /** - * @param {Array.<SourceMapV3.Section>} sections - */ - _parseSections: function(sections) - { - for (var i = 0; i < sections.length; ++i) { - var section = sections[i]; - this._parseMap(section.map, section.offset.line, section.offset.column); - } - }, - - /** - * @param {number} lineNumber in compiled resource - * @param {number} columnNumber in compiled resource - * @return {?Array} - */ - findEntry: function(lineNumber, columnNumber) - { - var first = 0; - var count = this._mappings.length; - while (count > 1) { - var step = count >> 1; - var middle = first + step; - var mapping = this._mappings[middle]; - if (lineNumber < mapping[0] || (lineNumber === mapping[0] && columnNumber < mapping[1])) - count = step; - else { - first = middle; - count -= step; - } - } - var entry = this._mappings[first]; - if (!first && entry && (lineNumber < entry[0] || (lineNumber === entry[0] && columnNumber < entry[1]))) - return null; - return entry; - }, - - /** - * @param {string} sourceURL of the originating resource - * @param {number} lineNumber in the originating resource - * @return {Array} - */ - findEntryReversed: function(sourceURL, lineNumber) - { - var mappings = this._reverseMappingsBySourceURL[sourceURL]; - for ( ; lineNumber < mappings.length; ++lineNumber) { - var mapping = mappings[lineNumber]; - if (mapping) - return mapping; - } - return this._mappings[0]; - }, - - /** - * @param {SourceMapV3} map - * @param {number} lineNumber - * @param {number} columnNumber - */ - _parseMap: function(map, lineNumber, columnNumber) - { - var sourceIndex = 0; - var sourceLineNumber = 0; - var sourceColumnNumber = 0; - var nameIndex = 0; - - var sources = []; - var originalToCanonicalURLMap = {}; - for (var i = 0; i < map.sources.length; ++i) { - var originalSourceURL = map.sources[i]; - var href = originalSourceURL; - if (map.sourceRoot && href.charAt(0) !== "/") - href = map.sourceRoot.replace(/\/+$/, "") + "/" + href; - var url = absoluteURL(href, this._sourceMappingURL) || href; - originalToCanonicalURLMap[originalSourceURL] = url; - sources.push(url); - this._sources[url] = true; - - if (map.sourcesContent && map.sourcesContent[i]) - this._sourceContentByURL[url] = map.sourcesContent[i]; - } - - this._sourceRoot = map.sourceRoot || null; - - var stringCharIterator = new WebInspector.SourceMap.StringCharIterator(map.mappings); - var sourceURL = sources[sourceIndex]; - - while (true) { - if (stringCharIterator.peek() === ",") - stringCharIterator.next(); - else { - while (stringCharIterator.peek() === ";") { - lineNumber += 1; - columnNumber = 0; - stringCharIterator.next(); - } - if (!stringCharIterator.hasNext()) - break; - } - - columnNumber += this._decodeVLQ(stringCharIterator); - if (this._isSeparator(stringCharIterator.peek())) { - this._mappings.push([lineNumber, columnNumber]); - continue; - } - - var sourceIndexDelta = this._decodeVLQ(stringCharIterator); - if (sourceIndexDelta) { - sourceIndex += sourceIndexDelta; - sourceURL = sources[sourceIndex]; - } - sourceLineNumber += this._decodeVLQ(stringCharIterator); - sourceColumnNumber += this._decodeVLQ(stringCharIterator); - if (!this._isSeparator(stringCharIterator.peek())) - nameIndex += this._decodeVLQ(stringCharIterator); - - this._mappings.push([lineNumber, columnNumber, sourceURL, sourceLineNumber, sourceColumnNumber]); - } - - for (var i = 0; i < this._mappings.length; ++i) { - var mapping = this._mappings[i]; - var url = mapping[2]; - if (!url) - continue; - if (!this._reverseMappingsBySourceURL[url]) - this._reverseMappingsBySourceURL[url] = []; - var reverseMappings = this._reverseMappingsBySourceURL[url]; - var sourceLine = mapping[3]; - if (!reverseMappings[sourceLine]) - reverseMappings[sourceLine] = [mapping[0], mapping[1]]; - } - }, - - /** - * @param {string} char - * @return {boolean} - */ - _isSeparator: function(char) - { - return char === "," || char === ";"; - }, - - /** - * @param {WebInspector.SourceMap.StringCharIterator} stringCharIterator - * @return {number} - */ - _decodeVLQ: function(stringCharIterator) - { - // Read unsigned value. - var result = 0; - var shift = 0; - do { - var digit = this._base64Map[stringCharIterator.next()]; - result += (digit & this._VLQ_BASE_MASK) << shift; - shift += this._VLQ_BASE_SHIFT; - } while (digit & this._VLQ_CONTINUATION_MASK); - - // Fix the sign. - var negative = result & 1; - result >>= 1; - return negative ? -result : result; - }, - - _VLQ_BASE_SHIFT: 5, - _VLQ_BASE_MASK: (1 << 5) - 1, - _VLQ_CONTINUATION_MASK: 1 << 5 -} - -/** - * @constructor - * @param {string} string - */ -WebInspector.SourceMap.StringCharIterator = function(string) -{ - this._string = string; - this._position = 0; -} - -WebInspector.SourceMap.StringCharIterator.prototype = { - /** - * @return {string} - */ - next: function() - { - return this._string.charAt(this._position++); - }, - - /** - * @return {string} - */ - peek: function() - { - return this._string.charAt(this._position); - }, - - /** - * @return {boolean} - */ - hasNext: function() - { - return this._position < this._string.length; - } -} |