| // 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 'dart:async'; |
| import 'package:expect/expect.dart'; |
| import 'package:async_helper/async_helper.dart'; |
| 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; |
| } |
| """; |
| |
| const String LIST_LENGTH_FOLDING = """ |
| foo() { |
| return const [1, 2, 3].length; |
| } |
| """; |
| |
| const String STRING_LENGTH_FOLDING = """ |
| foo() { |
| return '123'.length; |
| } |
| """; |
| |
| const String LIST_INDEX_FOLDING = """ |
| foo() { |
| return const [1, 2, 3][0]; |
| } |
| """; |
| |
| const String RANGE_ERROR_INDEX_FOLDING = """ |
| foo() { |
| return [1][1]; |
| } |
| """; |
| |
| main() { |
| asyncTest(() => Future.wait([ |
| compileAndMatch(NUMBER_FOLDING, 'main', new RegExp(r"print\(7\)")), |
| compileAndMatch( |
| NEGATIVE_NUMBER_FOLDING, 'main', new RegExp(r"print\(1\)")), |
| compile(NULL_EQUALS_FOLDING, entry: 'foo', check: (String generated) { |
| RegExp regexp = new RegExp(r'a == null'); |
| Expect.isTrue(regexp.hasMatch(generated)); |
| |
| regexp = new RegExp(r'null == b'); |
| Expect.isTrue(regexp.hasMatch(generated)); |
| |
| regexp = new RegExp(r'4 === c'); |
| Expect.isTrue(regexp.hasMatch(generated)); |
| |
| regexp = new RegExp('"foo" === d'); |
| Expect.isTrue(regexp.hasMatch(generated)); |
| }), |
| compileAndMatch(LIST_LENGTH_FOLDING, 'foo', new RegExp(r"return 3")), |
| compileAndMatch(LIST_INDEX_FOLDING, 'foo', new RegExp(r"return 1")), |
| compileAndDoNotMatch(LIST_INDEX_FOLDING, 'foo', new RegExp(r"ioore")), |
| compileAndMatch(STRING_LENGTH_FOLDING, 'foo', new RegExp(r"return 3")), |
| compileAndMatch(RANGE_ERROR_INDEX_FOLDING, 'foo', new RegExp(r"ioore")), |
| ])); |
| } |