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| 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
| 2 // for details. All rights reserved. Use of this source code is governed by a |
| 3 // BSD-style license that can be found in the LICENSE file. |
| 4 |
| 5 var a; |
| 6 |
| 7 main() { |
| 8 // Write a loop to force a bailout method on [A.foo]. |
| 9 for (int i = 0; i < 10; i++) { |
| 10 if (a != null) new A().foo([]); |
| 11 Expect.equals(42, new A().foo(new A())); |
| 12 } |
| 13 } |
| 14 |
| 15 class A { |
| 16 // In dart2js, the optimized version of foo tries to optimize the |
| 17 // uses of a.length (which is used two times here: for the index, |
| 18 // and for the bounds check), and that optmization used to crash |
| 19 // the compiler. |
| 20 foo(a) => a[a.length]; |
| 21 |
| 22 int get length => 42; |
| 23 operator[] (index) => 42; |
| 24 } |
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