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Added support for multiple input source maps to SourceMap object.

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The addInput method on the object can be used to add sourcemaps for individual input files.
This commit is contained in:
Arnavion 2015-08-04 10:59:14 -07:00
parent ab15d676d7
commit 87f31ed488
1 changed files with 12 additions and 3 deletions
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15
lib/sourcemap.js
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@ -53,19 +53,26 @@ function SourceMap(options) {
orig_line_diff : 0, orig_line_diff : 0,
dest_line_diff : 0, dest_line_diff : 0,
}); });
var orig_maps = Object.create(null);
var orig_map = options.orig && new MOZ_SourceMap.SourceMapConsumer(options.orig); var orig_map = options.orig && new MOZ_SourceMap.SourceMapConsumer(options.orig);
var generator; var generator;
if (orig_map) { if (orig_map) {
generator = MOZ_SourceMap.SourceMapGenerator.fromSourceMap(orig_map); generator = MOZ_SourceMap.SourceMapGenerator.fromSourceMap(orig_map);
} else { } else {
generator = new MOZ_SourceMap.SourceMapGenerator({ generator = new MOZ_SourceMap.SourceMapGenerator({
file : options.file, file : options.file,
sourceRoot : options.root sourceRoot : options.root
}); });
} }
function addInput(rawSourceMap) {
var consumer = new MOZ_SourceMap.SourceMapConsumer(rawSourceMap);
orig_maps[consumer.file] = consumer;
}
function add(source, gen_line, gen_col, orig_line, orig_col, name) { function add(source, gen_line, gen_col, orig_line, orig_col, name) {
if (orig_map) { var originalMap = orig_maps[source] || orig_map;
var info = orig_map.originalPositionFor({
if (originalMap) {
var info = originalMap.originalPositionFor({
line: orig_line, line: orig_line,
column: orig_col column: orig_col
}); });
@ -77,6 +84,7 @@ function SourceMap(options) {
orig_col = info.column; orig_col = info.column;
name = info.name || name; name = info.name || name;
} }
generator.addMapping({ generator.addMapping({
generated : { line: gen_line + options.dest_line_diff, column: gen_col }, generated : { line: gen_line + options.dest_line_diff, column: gen_col },
original : { line: orig_line + options.orig_line_diff, column: orig_col }, original : { line: orig_line + options.orig_line_diff, column: orig_col },
@ -85,6 +93,7 @@ function SourceMap(options) {
}); });
} }
return { return {
addInput : addInput,
add : add, add : add,
get : function() { return generator }, get : function() { return generator },
toString : function() { return JSON.stringify(generator.toJSON()); } toString : function() { return JSON.stringify(generator.toJSON()); }