| // 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. |
| |
| // @dart = 2.9 |
| |
| // Regression test for dart2js that used to optimistically infer the |
| // wrong types for fields because of generative constructors being |
| // inlined. |
| |
| import "package:expect/expect.dart"; |
| |
| class A { |
| var foo; |
| var bar; |
| |
| @pragma('vm:never-inline') |
| @pragma('dart2js:noInline') |
| A() { |
| // Currently defeat inlining by using a closure. |
| bar = () => 42; |
| foo = 54; |
| } |
| A.inline(); |
| } |
| |
| main() { |
| // Make sure A's constructor is analyzed first by surrounding the |
| // body by two allocations. |
| new A(); |
| bar(); |
| new A(); |
| } |
| |
| class B { |
| var bar; |
| var closure; |
| @pragma('vm:never-inline') |
| @pragma('dart2js:noInline') |
| B() { |
| // Currently defeat inlining by using a closure. |
| closure = () => 42; |
| bar = new A().foo; |
| } |
| } |
| |
| @pragma('vm:never-inline') |
| @pragma('dart2js:noInline') |
| bar() { |
| // Make sure B's constructor is analyzed first by surrounding the |
| // body by two allocations. |
| new B(); |
| // Currently defeat inlining by using a closure. |
| Expect.throwsNoSuchMethodError(() => new A.inline().foo + 42); |
| codegenLast(); |
| new B(); |
| } |
| |
| @pragma('vm:never-inline') |
| @pragma('dart2js:noInline') |
| codegenLast() { |
| // This assignment currently defeats simple type inference, but not |
| // the optimistic inferrer. |
| new A().foo = new B().bar; |
| // Currently defeat inlining by using a closure. |
| new B().closure = () => 42; |
| } |