Add generator options to fromSourceMap (#22)

Co-authored-by: Valentin Semirulnik <v7rulnik@gmail.com>
7rulnik · Mar 19, 2024 · 420748b · 420748b
1 parent f0a16e5
commit 420748b
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diff --git a/README.md b/README.md
@@ -476,14 +476,18 @@ var generator = new sourceMap.SourceMapGenerator({
 });
 ```
 
-#### SourceMapGenerator.fromSourceMap(sourceMapConsumer)
+#### SourceMapGenerator.fromSourceMap(sourceMapConsumer, sourceMapGeneratorOptions)
 
 Creates a new `SourceMapGenerator` from an existing `SourceMapConsumer` instance.
 
 * `sourceMapConsumer` The SourceMap.
 
+* `sourceMapGeneratorOptions` options that will be passed to the SourceMapGenerator constructor which used under the hood.
+
 ```js
-var generator = sourceMap.SourceMapGenerator.fromSourceMap(consumer);
+var generator = sourceMap.SourceMapGenerator.fromSourceMap(consumer, {
+  ignoreInvalidMapping: true,
+});
 ```
 
 #### SourceMapGenerator.prototype.addMapping(mapping)

diff --git a/lib/source-map-generator.js b/lib/source-map-generator.js
@@ -40,12 +40,12 @@ SourceMapGenerator.prototype._version = 3;
  * @param aSourceMapConsumer The SourceMap.
  */
 SourceMapGenerator.fromSourceMap =
-  function SourceMapGenerator_fromSourceMap(aSourceMapConsumer) {
+  function SourceMapGenerator_fromSourceMap(aSourceMapConsumer, generatorOps) {
     var sourceRoot = aSourceMapConsumer.sourceRoot;
-    var generator = new SourceMapGenerator({
+    var generator = new SourceMapGenerator(Object.assign(generatorOps || {}, {
       file: aSourceMapConsumer.file,
       sourceRoot: sourceRoot
-    });
+    }));
     aSourceMapConsumer.eachMapping(function (mapping) {
       var newMapping = {
         generated: {