Ignore false matches from CoffeeScript codebase

I'm not sure this is the best fix for this bug, which was hard to track down! But I have also attempted to address it here: https://github.com/evanw/node-source-map-support/pull/283… although looking at the activity on that repo, I don't have much hope of it being merged any time soon… Hence the reason for this PR. See also: evanw/node-source-map-support#254 # Conflicts: # lib/util.js
42technologies · May 6, 2023 · d4ef930 · d4ef930
1 parent ac518d2
commit d4ef930
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Showing 13 changed files with 42 additions and 22 deletions.
diff --git a/dist/source-map.debug.js b/dist/source-map.debug.js
diff --git a/dist/source-map.js b/dist/source-map.js
@@ -1150,7 +1150,9 @@ return /******/ (function(modules) { // webpackBootstrap
 	 * JSON.
 	 */
 	function parseSourceMapInput(str) {
-	  return JSON.parse(str.replace(/^\)]}'[^\n]*\n/, ''));
+	  // Ignore false matches from CoffeeScript codebase.
+	  if (str.startsWith('zw(u')) return { version: 3, sources: [], mappings: [] }
+	  return JSON.parse(str.replace(/^\)]}'[^\n]*\n/, ""));
 	}
 	exports.parseSourceMapInput = parseSourceMapInput;
 

diff --git a/dist/source-map.min.js b/dist/source-map.min.js
diff --git a/dist/source-map.min.js.map b/dist/source-map.min.js.map
diff --git a/dist/test/test_api.js b/dist/test/test_api.js
diff --git a/dist/test/test_array_set.js b/dist/test/test_array_set.js
diff --git a/dist/test/test_dog_fooding.js b/dist/test/test_dog_fooding.js
diff --git a/dist/test/test_source_map_consumer.js b/dist/test/test_source_map_consumer.js
diff --git a/dist/test/test_source_map_generator.js b/dist/test/test_source_map_generator.js
diff --git a/dist/test/test_source_node.js b/dist/test/test_source_node.js
diff --git a/dist/test/test_util.js b/dist/test/test_util.js
diff --git a/lib/util.js b/lib/util.js
@@ -430,7 +430,9 @@ exports.compareByGeneratedPositionsInflated = compareByGeneratedPositionsInflate
  * JSON.
  */
 function parseSourceMapInput(str) {
-  return JSON.parse(str.replace(/^\)]}'[^\n]*\n/, ''));
+  // Ignore false matches from CoffeeScript codebase.
+  if (str.startsWith('zw(u')) return { version: 3, sources: [], mappings: [] }
+  return JSON.parse(str.replace(/^\)]}'[^\n]*\n/, ""));
 }
 exports.parseSourceMapInput = parseSourceMapInput;
 

diff --git a/package.json b/package.json
@@ -1,7 +1,7 @@
 {
-  "name": "source-map",
+  "name": "@42technologies/source-map",
   "description": "Generates and consumes source maps",
-  "version": "0.6.1",
+  "version": "0.6.2",
   "homepage": "https://github.com/mozilla/source-map",
   "author": "Nick Fitzgerald <[email protected]>",
   "contributors": [