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Issue 11275042: Renaming IndexOutOfRangeException to RangeError. (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Created 8 years, 1 month ago
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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file 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 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. 3 // BSD-style license that can be found in the LICENSE file.
4 4
5 // Make sure we use JavaScript semantics when compiling compile-time constants. 5 // Make sure we use JavaScript semantics when compiling compile-time constants.
6 // In this case we test that the value-range analysis uses JavaScript semantics 6 // In this case we test that the value-range analysis uses JavaScript semantics
7 // too. 7 // too.
8 8
9 int inscrutable(int x) => x == 0 ? 0 : x | inscrutable(x & (x - 1)); 9 int inscrutable(int x) => x == 0 ? 0 : x | inscrutable(x & (x - 1));
10 10
11 foo() { 11 foo() {
12 var a = const [1, 2]; 12 var a = const [1, 2];
13 var i = 0x100000000; 13 var i = 0x100000000;
14 if (inscrutable(i) == 0) { 14 if (inscrutable(i) == 0) {
15 i = 0x100000001; 15 i = 0x100000001;
16 } 16 }
17 i = 0xFFFFFFFFF & i; // In JS semantics [:i:] will be truncated to 32 bits. 17 i = 0xFFFFFFFFF & i; // In JS semantics [:i:] will be truncated to 32 bits.
18 i = 0x100000001 - i; 18 i = 0x100000001 - i;
19 return a[i]; 19 return a[i];
20 } 20 }
21 21
22 main() { 22 main() {
23 Expect.throws(() => foo(), 23 Expect.throws(() => foo(),
24 (e) => e is IndexOutOfRangeException); 24 (e) => e is RangeError);
25 } 25 }
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