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104 lines
3.8 KiB
104 lines
3.8 KiB
/*********************************************************************** |
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A JavaScript tokenizer / parser / beautifier / compressor. |
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https://github.com/mishoo/UglifyJS2 |
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-------------------------------- (C) --------------------------------- |
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Author: Mihai Bazon |
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<mihai.bazon@gmail.com> |
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http://mihai.bazon.net/blog |
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Distributed under the BSD license: |
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Copyright 2012 (c) Mihai Bazon <mihai.bazon@gmail.com> |
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Redistribution and use in source and binary forms, with or without |
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modification, are permitted provided that the following conditions |
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are met: |
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* Redistributions of source code must retain the above |
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copyright notice, this list of conditions and the following |
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disclaimer. |
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* Redistributions in binary form must reproduce the above |
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copyright notice, this list of conditions and the following |
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disclaimer in the documentation and/or other materials |
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provided with the distribution. |
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY |
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EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE |
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, |
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OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR |
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TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF |
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THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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SUCH DAMAGE. |
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***********************************************************************/ |
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"use strict"; |
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// a small wrapper around fitzgen's source-map library |
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function SourceMap(options) { |
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options = defaults(options, { |
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file: null, |
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root: null, |
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orig: null, |
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orig_line_diff: 0, |
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dest_line_diff: 0, |
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}, true); |
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var generator = new MOZ_SourceMap.SourceMapGenerator({ |
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file: options.file, |
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sourceRoot: options.root |
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}); |
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var maps = options.orig && Object.create(null); |
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if (maps) for (var source in options.orig) { |
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var map = new MOZ_SourceMap.SourceMapConsumer(options.orig[source]); |
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if (Array.isArray(options.orig[source].sources)) { |
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map._sources.toArray().forEach(function(source) { |
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var sourceContent = map.sourceContentFor(source, true); |
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if (sourceContent) generator.setSourceContent(source, sourceContent); |
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}); |
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} |
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maps[source] = map; |
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} |
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return { |
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add: function(source, gen_line, gen_col, orig_line, orig_col, name) { |
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var map = maps && maps[source]; |
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if (map) { |
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var info = map.originalPositionFor({ |
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line: orig_line, |
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column: orig_col |
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}); |
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if (info.source === null) return; |
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source = info.source; |
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orig_line = info.line; |
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orig_col = info.column; |
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name = info.name || name; |
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} |
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generator.addMapping({ |
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name: name, |
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source: source, |
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generated: { |
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line: gen_line + options.dest_line_diff, |
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column: gen_col |
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}, |
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original: { |
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line: orig_line + options.orig_line_diff, |
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column: orig_col |
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} |
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}); |
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}, |
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get: function() { |
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return generator; |
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}, |
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toString: function() { |
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return JSON.stringify(generator.toJSON()); |
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} |
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}; |
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}
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