| // Copyright (c) 2021, 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. |
| |
| // Regression test for https://github.com/dart-lang/sdk/issues/48043. |
| // Verifies that loads which may call initializer are not forwarded to |
| // a previously stored value if it could be an uninitialized sentinel. |
| |
| // VMOptions=--deterministic --optimization_counter_threshold=120 |
| |
| import "package:expect/expect.dart"; |
| |
| class LateField1 { |
| late int n; |
| |
| LateField1() { |
| print(n); |
| } |
| } |
| |
| class LateField2 { |
| late int n; |
| |
| LateField2() { |
| print(n); |
| n = 31999; |
| } |
| } |
| |
| class LateField3 { |
| late int n; |
| |
| LateField3() { |
| print(n); |
| n = DateTime.now().millisecondsSinceEpoch; |
| } |
| } |
| |
| void doTests() { |
| Expect.throws(() { |
| LateField1(); |
| }); |
| Expect.throws(() { |
| LateField2(); |
| }); |
| Expect.throws(() { |
| final obj = LateField3(); |
| print(obj.n); |
| }); |
| } |
| |
| void main() { |
| for (int i = 0; i < 150; ++i) { |
| doTests(); |
| } |
| } |