| 1 | /***********************************************************************
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| 2 |
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| 3 | A JavaScript tokenizer / parser / beautifier / compressor.
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| 4 | https://github.com/mishoo/UglifyJS2
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| 5 |
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| 6 | -------------------------------- (C) ---------------------------------
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| 7 |
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| 8 | Author: Mihai Bazon
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| 9 | <mihai.bazon@gmail.com>
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| 10 | http://mihai.bazon.net/blog
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| 11 |
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| 12 | Distributed under the BSD license:
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| 13 |
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| 14 | Copyright 2012 (c) Mihai Bazon <mihai.bazon@gmail.com>
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| 15 |
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| 16 | Redistribution and use in source and binary forms, with or without
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| 17 | modification, are permitted provided that the following conditions
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| 18 | are met:
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| 19 |
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| 20 | * Redistributions of source code must retain the above
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| 21 | copyright notice, this list of conditions and the following
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| 22 | disclaimer.
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| 23 |
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| 24 | * Redistributions in binary form must reproduce the above
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| 25 | copyright notice, this list of conditions and the following
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| 26 | disclaimer in the documentation and/or other materials
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| 27 | provided with the distribution.
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| 28 |
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| 29 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY
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| 30 | EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 31 | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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| 32 | PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
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| 33 | LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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| 34 | OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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| 35 | PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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| 36 | PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 37 | THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
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| 38 | TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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| 39 | THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 40 | SUCH DAMAGE.
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| 41 |
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| 42 | ***********************************************************************/
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| 43 |
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| 44 | ;
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| 45 |
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| 46 | // a small wrapper around fitzgen's source-map library
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| 47 | function SourceMap(options) {
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| 48 | options = defaults(options, {
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| 49 | file: null,
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| 50 | root: null,
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| 51 | orig: null,
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| 52 | orig_line_diff: 0,
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| 53 | dest_line_diff: 0,
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| 54 | }, true);
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| 55 | var generator = new MOZ_SourceMap.SourceMapGenerator({
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| 56 | file: options.file,
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| 57 | sourceRoot: options.root
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| 58 | });
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| 59 | var maps = options.orig && Object.create(null);
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| 60 | if (maps) for (var source in options.orig) {
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| 61 | var map = new MOZ_SourceMap.SourceMapConsumer(options.orig[source]);
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| 62 | if (Array.isArray(options.orig[source].sources)) {
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| 63 | map._sources.toArray().forEach(function(source) {
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| 64 | var sourceContent = map.sourceContentFor(source, true);
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| 65 | if (sourceContent) generator.setSourceContent(source, sourceContent);
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| 66 | });
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| 67 | }
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| 68 | maps[source] = map;
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| 69 | }
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| 70 | return {
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| 71 | add: function(source, gen_line, gen_col, orig_line, orig_col, name) {
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| 72 | var map = maps && maps[source];
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| 73 | if (map) {
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| 74 | var info = map.originalPositionFor({
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| 75 | line: orig_line,
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| 76 | column: orig_col
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| 77 | });
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| 78 | if (info.source === null) return;
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| 79 | source = info.source;
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| 80 | orig_line = info.line;
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| 81 | orig_col = info.column;
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| 82 | name = info.name || name;
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| 83 | }
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| 84 | generator.addMapping({
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| 85 | name: name,
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| 86 | source: source,
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| 87 | generated: {
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| 88 | line: gen_line + options.dest_line_diff,
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| 89 | column: gen_col
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| 90 | },
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| 91 | original: {
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| 92 | line: orig_line + options.orig_line_diff,
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| 93 | column: orig_col
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| 94 | }
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| 95 | });
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| 96 | },
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| 97 | get: function() {
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| 98 | return generator;
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| 99 | },
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| 100 | toString: function() {
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| 101 | return JSON.stringify(generator.toJSON());
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| 102 | }
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| 103 | };
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| 104 | }
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