| // Copyright (c) 2014, 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. |
| // VMOptions=--optimization-counter-threshold=100 --no-background-compilation |
| // VMOptions=--optimization-counter-threshold=100 --no-background-compilation --no-use-field-guards |
| |
| // @dart = 2.9 |
| |
| // Test lazy deoptimization at type checks with interface implementation. |
| |
| import "package:expect/expect.dart"; |
| import "cha_deopt3_lib.dart"; |
| import "cha_deopt3_deferred_lib.dart" deferred as d; |
| |
| var loaded = false; |
| |
| main() { |
| for (var i = 0; i < 2000; i++) bla(); |
| Expect.equals(1, bla()); |
| d.loadLibrary().then((_) { |
| loaded = true; |
| Expect.equals(1, bla()); |
| }); |
| } |
| |
| make_array() { |
| try { |
| if (loaded) { |
| return [new A(), new B(), new C(), new D(), new E(), d.make_u()]; |
| } else { |
| return [new A(), new B(), new C(), new D(), new E(), new T()]; |
| } |
| } catch (e) {} |
| } |
| |
| bla() { |
| var count = 0; |
| for (var x in make_array()) { |
| if (x is T) count++; |
| } |
| return count; |
| } |