| // Copyright (c) 2012, 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 constant folding on numbers. |
| |
| #import("compiler_helper.dart"); |
| |
| const String NUMBER_FOLDING = """ |
| void main() { |
| var a = 4; |
| var b = 3; |
| print(a + b); |
| } |
| """; |
| |
| const String NEGATIVE_NUMBER_FOLDING = """ |
| void main() { |
| var a = 4; |
| var b = -3; |
| print(a + b); |
| } |
| """; |
| |
| const String NULL_EQUALS_FOLDING = """ |
| foo(a, b, c, d) { |
| if (a == null) return 1; |
| if (null == b) return 2; |
| if (4 == c) return 3; |
| if ("foo" == d) return 3; |
| } |
| """; |
| |
| main() { |
| compileAndMatch( |
| NUMBER_FOLDING, 'main', const RegExp(r"print\(7\)")); |
| compileAndMatch( |
| NEGATIVE_NUMBER_FOLDING, 'main', const RegExp(r"print\(1\)")); |
| |
| String generated = compile(NULL_EQUALS_FOLDING, 'foo'); |
| RegExp regexp = const RegExp(r'a == null'); |
| Expect.isTrue(regexp.hasMatch(generated)); |
| |
| regexp = const RegExp(r'null == b'); |
| Expect.isTrue(regexp.hasMatch(generated)); |
| |
| regexp = const RegExp(r'4 === c'); |
| Expect.isTrue(regexp.hasMatch(generated)); |
| |
| regexp = const RegExp("'foo' === d"); |
| Expect.isTrue(regexp.hasMatch(generated)); |
| } |