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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 // Test of compile time constant local variables in outer function levels. | 5 // Test of compile time constant local variables in outer function levels. |
6 | 6 |
7 const N = 8; | 7 const N = 8; |
8 | 8 |
9 class ConstFoo { | 9 class ConstFoo { |
10 final x; | 10 final x; |
11 const ConstFoo(this.x); | 11 const ConstFoo(this.x); |
12 } | 12 } |
13 | 13 |
14 getClosure() { | 14 getClosure() { |
15 const MIN = 2 - 1; | 15 const MIN = 2 - 1; |
16 const MAX = N * 2; | 16 const MAX = N * 2; |
17 const MASK = (1 << (MAX - MIN + 1)) - 1; // 65535. | 17 const MASK = (1 << (MAX - MIN + 1)) - 1; // 65535. |
18 | 18 |
19 void foo() { | 19 void foo() { |
20 Expect.equals(1, MIN); | 20 Expect.equals(1, MIN); |
21 Expect.equals(16, MAX); | 21 Expect.equals(16, MAX); |
22 Expect.equals(65535, MASK); | 22 Expect.equals(65535, MASK); |
23 // Refer to compile time constant local variables in outer scope. | 23 // Refer to compile time constant local variables in outer scope. |
24 const s = 'MIN = $MIN MAX = $MAX MASK = $MASK'; | 24 const s = 'MIN = $MIN MAX = $MAX MASK = $MASK'; |
25 Expect.isTrue(s === 'MIN = $MIN MAX = $MAX MASK = $MASK'); | 25 Expect.isTrue(identical(s, 'MIN = $MIN MAX = $MAX MASK = $MASK')); |
26 Expect.equals("MIN = 1 MAX = 16 MASK = 65535", s); | 26 Expect.equals("MIN = 1 MAX = 16 MASK = 65535", s); |
27 var cf1 = const ConstFoo(MASK); | 27 var cf1 = const ConstFoo(MASK); |
28 var cf2 = const ConstFoo(s); | 28 var cf2 = const ConstFoo(s); |
29 var cf3 = const ConstFoo('MIN = $MIN MAX = $MAX MASK = $MASK'); | 29 var cf3 = const ConstFoo('MIN = $MIN MAX = $MAX MASK = $MASK'); |
30 Expect.isTrue(cf2 === cf3); | 30 Expect.isTrue(identical(cf2, cf3)); |
31 Expect.isFalse(cf2 === cf1); | 31 Expect.isFalse(identical(cf2, cf1)); |
32 } | 32 } |
33 | 33 |
34 return foo; | 34 return foo; |
35 } | 35 } |
36 | 36 |
37 | 37 |
38 main() { | 38 main() { |
39 var f = getClosure(); | 39 var f = getClosure(); |
40 f(); | 40 f(); |
41 } | 41 } |
42 | 42 |
43 | 43 |
44 | 44 |
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