source-map-support - npm Package Compare versions

Comparing version 0.1.6 to 0.1.7

package.json

 {
   "name": "source-map-support",
   "description": "Fixes stack traces for files with source maps",
-  "version": "0.1.6",
+  "version": "0.1.7",
   "main": "./source-map-support.js",
@@ -6,0 +6,0 @@ "scripts": {

source-map-support.js

@@ -14,9 +14,20 @@ var SourceMapConsumer = require('source-map').SourceMapConsumer;
 
-    // Support source map URLs relative to the source URL
-    var dir = path.dirname(position.source);
-    sourceMappingURL = path.resolve(dir, sourceMappingURL);
+    // Read the contents of the source map
+    var sourceMapData;
+    var dataUrlPrefix = "data:application/json;base64,";
+    if (sourceMappingURL.slice(0, dataUrlPrefix.length).toLowerCase() == dataUrlPrefix) {
+      // Support source map URL as a data url
+      sourceMapData = new Buffer(sourceMappingURL.slice(dataUrlPrefix.length), "base64").toString();
+    }
+    else {
+      // Support source map URLs relative to the source URL
+      var dir = path.dirname(position.source);
+      sourceMappingURL = path.resolve(dir, sourceMappingURL);
 
-    // Parse the source map
-    if (fs.existsSync(sourceMappingURL)) {
-      var sourceMapData = fs.readFileSync(sourceMappingURL, 'utf8');
+      if (fs.existsSync(sourceMappingURL)) {
+        sourceMapData = fs.readFileSync(sourceMappingURL, 'utf8');
+      }
+    }
+
+    if (sourceMapData) {
       sourceMap = {
@@ -23,0 +34,0 @@ url: sourceMappingURL,

test.js

@@ -32,2 +32,4 @@ require('./source-map-support').install();
   }
+
+  // Check once with a separate source map
   fs.writeFileSync('.generated.js.map', sourceMap);
@@ -44,2 +46,14 @@ fs.writeFileSync('.generated.js', 'exports.test = function() {' +
   fs.unlinkSync('.generated.js.map');
+
+  // Check again with an inline source map (in a data URL)
+  fs.writeFileSync('.generated.js', 'exports.test = function() {' +
+    source.join('\n') + '};//@ sourceMappingURL=data:application/json;base64,' +
+    new Buffer(sourceMap.toString()).toString('base64'));
+  try {
+    delete require.cache[require.resolve('./.generated')];
+    require('./.generated').test();
+  } catch (e) {
+    compareLines(e.stack.split('\n'), expected);
+  }
+  fs.unlinkSync('.generated.js');
 }
@@ -46,0 +60,0 @@

No alert changes

Improved metrics

Total package byte prevSize

16758

increased by5.76%

Lines of code

368

increased by6.36%

No dependency changes