| // 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. |
| // VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation |
| |
| // @dart = 2.9 |
| |
| import "package:expect/expect.dart"; |
| |
| main() { |
| final a = new A(); |
| for (int i = 0; i < 20; i++) { |
| final r = interpolIt(a); |
| Expect.stringEquals("hello home", r); |
| } |
| final b = new B(); |
| // Deoptimize "interpolIt". |
| final r = interpolIt(b); |
| Expect.stringEquals("hello world", r); |
| } |
| |
| String interpolIt(v) { |
| // String interpolation will be constant folded. |
| return "hello ${v.foo()}"; |
| } |
| |
| class A { |
| foo() => "home"; |
| } |
| |
| class B { |
| foo() => "world"; |
| } |