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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 import "package:expect/expect.dart"; | 5 import "package:expect/expect.dart"; |
6 | 6 |
7 // Test of compile time constant local variables in outer function levels. | 7 // Test of compile time constant local variables in outer function levels. |
8 | 8 |
9 const N = 8; | 9 const N = 8; |
10 | 10 |
11 class ConstFoo { | 11 class ConstFoo { |
12 final x; | 12 final x; |
13 const ConstFoo(this.x); | 13 const ConstFoo(this.x); |
14 } | 14 } |
15 | 15 |
16 getClosure() { | 16 getClosure() { |
17 const MIN = 2 - 1; | 17 const MIN = 2 - 1; |
18 const MAX = N * 2; | 18 const MAX = N * 2; |
19 const MASK = (1 << (MAX - MIN + 1)) - 1; // 65535. | 19 const MASK = (1 << (MAX - MIN + 1)) - 1; // 65535. |
20 | 20 |
21 void foo() { | 21 void foo() { |
22 Expect.equals(1, MIN); | 22 Expect.equals(1, MIN); |
23 Expect.equals(16, MAX); | 23 Expect.equals(16, MAX); |
24 Expect.equals(65535, MASK); | 24 Expect.equals(65535, MASK); |
25 // Refer to compile time constant local variables in outer scope. | 25 // Refer to compile time constant local variables in outer scope. |
26 const s = 'MIN = $MIN MAX = $MAX MASK = $MASK'; | 26 const s = 'MIN = $MIN MAX = $MAX MASK = $MASK'; |
27 Expect.isTrue(identical(s, 'MIN = $MIN MAX = $MAX MASK = $MASK')); | 27 Expect.isTrue(identical(s, 'MIN = $MIN MAX = $MAX MASK = $MASK')); |
28 Expect.equals("MIN = 1 MAX = 16 MASK = 65535", s); | 28 Expect.equals("MIN = 1 MAX = 16 MASK = 65535", s); |
29 var cf1 = const ConstFoo(MASK); | 29 var cf1 = const ConstFoo(MASK); |
30 var cf2 = const ConstFoo(s); | 30 var cf2 = const ConstFoo(s); |
31 var cf3 = const ConstFoo('MIN = $MIN MAX = $MAX MASK = $MASK'); | 31 var cf3 = const ConstFoo('MIN = $MIN MAX = $MAX MASK = $MASK'); |
32 Expect.isTrue(identical(cf2, cf3)); | 32 Expect.isTrue(identical(cf2, cf3)); |
33 Expect.isFalse(identical(cf2, cf1)); | 33 Expect.isFalse(identical(cf2, cf1)); |
34 } | 34 } |
35 | 35 |
36 return foo; | 36 return foo; |
37 } | 37 } |
38 | 38 |
39 | |
40 main() { | 39 main() { |
41 var f = getClosure(); | 40 var f = getClosure(); |
42 f(); | 41 f(); |
43 } | 42 } |
44 | |
45 | |
46 | |
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