| // 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. |
| |
| // Test that global analysis in dart2js propagates positive integers. |
| |
| import 'package:expect/expect.dart'; |
| import "package:async_helper/async_helper.dart"; |
| import 'memory_compiler.dart'; |
| |
| const MEMORY_SOURCE_FILES = const { |
| 'main.dart': ''' |
| |
| var a = [42]; |
| |
| main() { |
| var value = a[0]; |
| if (value < 42) { |
| return new List(42)[value]; |
| } |
| } |
| ''', |
| }; |
| |
| main() { |
| asyncTest(() async { |
| var result = await runCompiler(memorySourceFiles: MEMORY_SOURCE_FILES); |
| var compiler = result.compiler; |
| var element = compiler.frontendStrategy.elementEnvironment.mainFunction; |
| var code = compiler.backend.getGeneratedCode(element); |
| Expect.isFalse(code.contains('ioore')); |
| }); |
| } |