fix(shims): function.name to return empty string when no name

marclaval · marclaval · commit 3a7b50f244a1 · 2015-09-15T18:33:28.000+02:00
diff --git a/modules/angular2/src/test_lib/shims_for_IE.js b/modules/angular2/src/test_lib/shims_for_IE.js
@@ -3,7 +3,8 @@
 if (!Object.hasOwnProperty('name')) {
   Object.defineProperty(Function.prototype, 'name', {
     get: function() {
-      var name = this.toString().match(/^\s*function\s*(\S*)\s*\(/)[1];
+      var matches = this.toString().match(/^\s*function\s*(\S*)\s*\(/);
+      var name = matches && matches.length > 1 ? matches[1] : "";
       // For better performance only parse once, and then cache the
       // result through a new accessor for repeated access.
       Object.defineProperty(this, 'name', {value: name});
diff --git a/modules/angular2/test/core/dom/shim_spec.dart b/modules/angular2/test/core/dom/shim_spec.dart
@@ -0,0 +1,5 @@
+library angular2.test.core.dom.shim_spec;
+
+main() {
+  // not relevant for dart.
+}
diff --git a/modules/angular2/test/core/dom/shim_spec.ts b/modules/angular2/test/core/dom/shim_spec.ts
@@ -0,0 +1,26 @@
+import {
+  AsyncTestCompleter,
+  beforeEach,
+  ddescribe,
+  describe,
+  el,
+  expect,
+  iit,
+  inject,
+  it,
+  xit
+} from 'angular2/test_lib';
+
+export function main() {
+  describe('Shim', () => {
+
+    it('should provide correct function.name ', () => {
+      var functionWithoutName = function(_) {};
+      function foo(_){};
+
+      expect((<any>functionWithoutName).name).toEqual('');
+      expect((<any>foo).name).toEqual('foo');
+    });
+
+  });
+}
