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105 lines
3.8 KiB
JavaScript
105 lines
3.8 KiB
JavaScript
6 years ago
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/***********************************************************************
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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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