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114 lines
3.8 KiB
114 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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import MOZ_SourceMap from "source-map"; |
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import { |
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defaults, |
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} from "./utils/index.js"; |
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// a small wrapper around fitzgen's source-map library |
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async 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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}); |
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var orig_map; |
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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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if (options.orig) { |
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orig_map = await new MOZ_SourceMap.SourceMapConsumer(options.orig); |
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orig_map.sources.forEach(function(source) { |
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var sourceContent = orig_map.sourceContentFor(source, true); |
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if (sourceContent) { |
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generator.setSourceContent(source, sourceContent); |
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} |
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}); |
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} |
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function add(source, gen_line, gen_col, orig_line, orig_col, name) { |
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if (orig_map) { |
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var info = orig_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) { |
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return; |
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} |
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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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generated : { line: gen_line + options.dest_line_diff, column: gen_col }, |
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original : { line: orig_line + options.orig_line_diff, column: orig_col }, |
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source : source, |
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name : name |
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}); |
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} |
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return { |
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add : add, |
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get : function() { return generator; }, |
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toString : function() { return generator.toString(); }, |
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destroy : function () { |
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if (orig_map && orig_map.destroy) { |
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orig_map.destroy(); |
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} |
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} |
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}; |
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} |
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export { |
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SourceMap, |
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};
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