Support JavaScriptCore stack traces.

test/trace_test.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library trace_test;
 
 import 'package:path/path.dart' as path;
 import 'package:stack_trace/stack_trace.dart';
 import 'package:unittest/unittest.dart';
 
@@ skipping 74 matching lines @@
               '(http://pub.dartlang.org/thing.js:1:100)');
 
       expect(trace.frames[0].uri,
           equals(Uri.parse("http://pub.dartlang.org/stuff.js")));
       expect(trace.frames[1].uri,
           equals(Uri.parse("http://pub.dartlang.org/stuff.js")));
       expect(trace.frames[2].uri,
           equals(Uri.parse("http://pub.dartlang.org/thing.js")));
     });
 
+    // JavaScriptCore traces are just like V8, except that it doesn't have a
+    // header and it starts with a tab rather than spaces.
+    test('parses a JavaScriptCore stack trace correctly', () {
+      var trace = new Trace.parse(
+          '\tat Foo._bar (http://pub.dartlang.org/stuff.js:42:21)\n'
+          '\tat http://pub.dartlang.org/stuff.js:0:2\n'
+          '\tat zip.<anonymous>.zap '
+              '(http://pub.dartlang.org/thing.js:1:100)');
+
+      expect(trace.frames[0].uri,
+          equals(Uri.parse("http://pub.dartlang.org/stuff.js")));
+      expect(trace.frames[1].uri,
+          equals(Uri.parse("http://pub.dartlang.org/stuff.js")));
+      expect(trace.frames[2].uri,
+          equals(Uri.parse("http://pub.dartlang.org/thing.js")));
+    });
+
     test('parses a Firefox/Safari stack trace correctly', () {
       var trace = new Trace.parse(
           'Foo._bar@http://pub.dartlang.org/stuff.js:42\n'
           'zip/<@http://pub.dartlang.org/stuff.js:0\n'
           'zip.zap(12, "@)()/<")@http://pub.dartlang.org/thing.js:1');
 
       expect(trace.frames[0].uri,
           equals(Uri.parse("http://pub.dartlang.org/stuff.js")));
       expect(trace.frames[1].uri,
           equals(Uri.parse("http://pub.dartlang.org/stuff.js")));
@@ skipping 268 matching lines @@
     var folded = trace.foldFrames((frame) => frame.member.startsWith('foo'),
         terse: true);
     expect(folded.toString(), equals('''
 foo.dart 42:21  notFoo
 package:foo     fooBottom
 bar.dart 10:20  alsoNotFoo
 foo             fooBottom
 '''));
   });
 }