| 1 |
/*********************************************************************** |
| 2 |
|
| 3 |
A JavaScript tokenizer / parser / beautifier / compressor. |
| 4 |
https://github.com/mishoo/UglifyJS2 |
| 5 |
|
| 6 |
-------------------------------- (C) --------------------------------- |
| 7 |
|
| 8 |
Author: Mihai Bazon |
| 9 |
<[email protected]> |
| 10 |
http://mihai.bazon.net/blog |
| 11 |
|
| 12 |
Distributed under the BSD license: |
| 13 |
|
| 14 |
Copyright 2012 (c) Mihai Bazon <[email protected]> |
| 15 |
|
| 16 |
Redistribution and use in source and binary forms, with or without |
| 17 |
modification, are permitted provided that the following conditions |
| 18 |
are met: |
| 19 |
|
| 20 |
* Redistributions of source code must retain the above |
| 21 |
copyright notice, this list of conditions and the following |
| 22 |
disclaimer. |
| 23 |
|
| 24 |
* Redistributions in binary form must reproduce the above |
| 25 |
copyright notice, this list of conditions and the following |
| 26 |
disclaimer in the documentation and/or other materials |
| 27 |
provided with the distribution. |
| 28 |
|
| 29 |
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY |
| 30 |
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 31 |
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 32 |
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE |
| 33 |
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, |
| 34 |
OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 35 |
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| 36 |
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 37 |
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR |
| 38 |
TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF |
| 39 |
THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 40 |
SUCH DAMAGE. |
| 41 |
|
| 42 |
***********************************************************************/ |
| 43 |
|
| 44 |
"use strict"; |
| 45 |
|
| 46 |
// a small wrapper around fitzgen's source-map library |
| 47 |
function SourceMap(options) { |
| 48 |
options = defaults(options, { |
| 49 |
file: null, |
| 50 |
root: null, |
| 51 |
orig: null, |
| 52 |
orig_line_diff: 0, |
| 53 |
dest_line_diff: 0, |
| 54 |
}, true); |
| 55 |
var generator = new MOZ_SourceMap.SourceMapGenerator({ |
| 56 |
file: options.file, |
| 57 |
sourceRoot: options.root |
| 58 |
}); |
| 59 |
var maps = options.orig && Object.create(null); |
| 60 |
if (maps) for (var source in options.orig) { |
| 61 |
var map = new MOZ_SourceMap.SourceMapConsumer(options.orig[source]); |
| 62 |
if (Array.isArray(options.orig[source].sources)) { |
| 63 |
map._sources.toArray().forEach(function(source) { |
| 64 |
var sourceContent = map.sourceContentFor(source, true); |
| 65 |
if (sourceContent) generator.setSourceContent(source, sourceContent); |
| 66 |
}); |
| 67 |
} |
| 68 |
maps[source] = map; |
| 69 |
} |
| 70 |
return { |
| 71 |
add: function(source, gen_line, gen_col, orig_line, orig_col, name) { |
| 72 |
var map = maps && maps[source]; |
| 73 |
if (map) { |
| 74 |
var info = map.originalPositionFor({ |
| 75 |
line: orig_line, |
| 76 |
column: orig_col |
| 77 |
}); |
| 78 |
if (info.source === null) return; |
| 79 |
source = info.source; |
| 80 |
orig_line = info.line; |
| 81 |
orig_col = info.column; |
| 82 |
name = info.name || name; |
| 83 |
} |
| 84 |
generator.addMapping({ |
| 85 |
name: name, |
| 86 |
source: source, |
| 87 |
generated: { |
| 88 |
line: gen_line + options.dest_line_diff, |
| 89 |
column: gen_col |
| 90 |
}, |
| 91 |
original: { |
| 92 |
line: orig_line + options.orig_line_diff, |
| 93 |
column: orig_col |
| 94 |
} |
| 95 |
}); |
| 96 |
}, |
| 97 |
get: function() { |
| 98 |
return generator; |
| 99 |
}, |
| 100 |
toString: function() { |
| 101 |
return JSON.stringify(generator.toJSON()); |
| 102 |
} |
| 103 |
}; |
| 104 |
} |
| 105 |
|
