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| 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, 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 symbol literals. | 5 // Test symbol literals. |
| 6 | 6 |
| 7 library symbol_literal_test; | 7 library symbol_literal_test; |
| 8 | 8 |
| 9 import 'package:expect/expect.dart'; | 9 import 'package:expect/expect.dart'; |
| 10 | 10 |
| 11 foo(a, b) => Expect.isTrue(identical(a, b)); | 11 foo(a, b) => Expect.isTrue(identical(a, b)); |
| 12 | 12 |
| 13 var check = foo; // Indirection used to avoid inlining. | 13 var check = foo; // Indirection used to avoid inlining. |
| 14 | 14 |
| 15 testSwitch(Symbol s) { | 15 testSwitch(Symbol s) { |
| 16 switch (s) { | 16 switch(s) { |
| 17 case #abc: | 17 case #abc: return 1; |
| 18 return 1; | 18 case const Symbol("def"): return 2; |
| 19 case const Symbol("def"): | 19 default: return 0; |
| 20 return 2; | |
| 21 default: | |
| 22 return 0; | |
| 23 } | 20 } |
| 24 } | 21 } |
| 25 | 22 |
| 26 main() { | 23 main() { |
| 27 check(const Symbol("a"), #a); | 24 check(const Symbol("a"), #a); |
| 28 check(const Symbol("a"), #a); | 25 check(const Symbol("a"), # |
| 26 a); |
| 29 check(const Symbol("ab"), #ab); | 27 check(const Symbol("ab"), #ab); |
| 30 check(const Symbol("ab"), #ab); | 28 check(const Symbol("ab"), # |
| 29 ab); |
| 31 check(const Symbol("a.b"), #a.b); | 30 check(const Symbol("a.b"), #a.b); |
| 32 check(const Symbol("a.b"), #a.b); | 31 check(const Symbol("a.b"), # |
| 32 a |
| 33 . |
| 34 b); |
| 33 check(const Symbol("=="), #==); | 35 check(const Symbol("=="), #==); |
| 34 check(const Symbol("=="), #==); | 36 check(const Symbol("=="), # ==); |
| 35 check(const Symbol("a.toString"), #a.toString); | 37 check(const Symbol("a.toString"), #a.toString); |
| 36 | 38 |
| 37 Expect.equals(1, testSwitch(#abc)); | 39 Expect.equals(1, testSwitch(#abc)); |
| 38 | 40 |
| 39 const m = const <Symbol, int>{#A: 0, #B: 1}; | 41 const m = const <Symbol, int>{#A:0, #B:1}; |
| 40 Expect.equals(1, m[#B]); | 42 Expect.equals(1, m[#B]); |
| 41 | 43 |
| 42 // Tries to call the symbol literal #a.toString | 44 // Tries to call the symbol literal #a.toString |
| 43 Expect.throws(() => #a.toString(), (e) => e is NoSuchMethodError); //# 01: sta
tic type warning | 45 Expect.throws(() => #a.toString(), (e) => e is NoSuchMethodError); //# 01: sta
tic type warning |
| 44 } | 46 } |
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