| // 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); | |
| } |