| // Copyright (c) 2012, 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. |
| |
| import "package:expect/expect.dart"; |
| |
| // Make sure we use JavaScript semantics when compiling compile-time constants. |
| // In this case we test that the value-range analysis uses JavaScript semantics |
| // too. |
| |
| int inscrutable(int x) => x == 0 ? 0 : x | inscrutable(x & (x - 1)); |
| |
| foo() { |
| var a = const [1, 2]; |
| var i = 0x100000000; |
| if (inscrutable(i) == 0) { |
| i = 0x100000001; |
| } |
| i = 0xFFFFFFFFF & i; // In JS semantics [:i:] will be truncated to 32 bits. |
| i = 0x100000001 - i; |
| return a[i]; |
| } |
| |
| main() { |
| Expect.throws(() => foo(), (e) => e is RangeError); |
| } |
