| // Copyright (c) 2014, 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. |
| |
| // Ensure that unused empty HashMap nodes are dropped from the output. |
| |
| import 'package:expect/expect.dart'; |
| import 'package:async_helper/async_helper.dart'; |
| import 'memory_compiler.dart'; |
| |
| const TEST_SOURCE = const {"main.dart": r""" |
| void main() { |
| var x = {}; |
| return; |
| } |
| """}; |
| |
| const HASHMAP_EMPTY_CONSTRUCTOR = r"LinkedHashMap_LinkedHashMap$_empty"; |
| |
| main() { |
| var collector = new OutputCollector(); |
| var compiler = compilerFor(TEST_SOURCE, outputProvider: collector); |
| asyncTest(() => |
| compiler.run(Uri.parse('memory:main.dart')).then((_) { |
| String generated = collector.getOutput('', 'js'); |
| Expect.isFalse(generated.contains(HASHMAP_EMPTY_CONSTRUCTOR)); |
| }) |
| ); |
| } |