| // Copyright (c) 2011, 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. |
| // Tests that lhs of a compound assignment is executed only once. |
| // VMOptions=--optimization-counter-threshold=10 --no-background-compilation |
| |
| // @dart = 2.9 |
| |
| import "package:expect/expect.dart"; |
| |
| class Indexed { |
| Indexed() |
| : _f = new List(10), |
| count = 0 { |
| _f[0] = 100; |
| _f[1] = 200; |
| } |
| operator [](i) { |
| count++; |
| return _f; |
| } |
| |
| var count; |
| var _f; |
| } |
| |
| var result; |
| |
| class A { |
| get field { |
| result.add(1); |
| return 1; |
| } |
| |
| set field(value) {} |
| |
| static get static_field { |
| result.add(0); |
| return 1; |
| } |
| |
| static set static_field(value) { |
| result.add(1); |
| } |
| } |
| |
| class CompoundAssignmentOperatorTest { |
| static void testIndexed() { |
| Indexed indexed = new Indexed(); |
| Expect.equals(0, indexed.count); |
| var tmp = indexed[0]; |
| Expect.equals(1, indexed.count); |
| Expect.equals(100, indexed[4][0]); |
| Expect.equals(2, indexed.count); |
| Expect.equals(100, indexed[4][0]++); |
| Expect.equals(3, indexed.count); |
| Expect.equals(101, indexed[4][0]); |
| Expect.equals(4, indexed.count); |
| indexed[4][0] += 10; |
| Expect.equals(5, indexed.count); |
| Expect.equals(111, indexed[4][0]); |
| var i = 0; |
| indexed[3][i++] += 1; |
| Expect.equals(1, i); |
| } |
| |
| static testIndexedMore() { |
| result = []; |
| array() { |
| result.add(0); |
| return [0]; |
| } |
| |
| index() { |
| result.add(1); |
| return 0; |
| } |
| |
| middle() { |
| result.add(2); |
| } |
| |
| sequence(a, b, c) { |
| result.add(3); |
| } |
| |
| sequence(array()[index()] += 1, middle(), array()[index()] += 1); |
| Expect.listEquals([0, 1, 2, 0, 1, 3], result); |
| } |
| |
| static testIndexedMoreMore() { |
| result = []; |
| middle() { |
| result.add(2); |
| } |
| |
| obj() { |
| result.add(0); |
| return new A(); |
| } |
| |
| sequence(a, b, c) { |
| result.add(3); |
| } |
| |
| sequence(obj().field += 1, middle(), obj().field += 1); |
| Expect.listEquals([0, 1, 2, 0, 1, 3], result); |
| |
| result = []; |
| sequence(A.static_field++, middle(), A.static_field++); |
| Expect.listEquals([0, 1, 2, 0, 1, 3], result); |
| } |
| |
| static void testMain() { |
| for (int i = 0; i < 20; i++) { |
| testIndexed(); |
| testIndexedMore(); |
| testIndexedMoreMore(); |
| } |
| } |
| } |
| |
| main() { |
| CompoundAssignmentOperatorTest.testMain(); |
| } |