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| 1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2011, 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 // Dart test program testing closures. | 4 // Dart test program testing closures. |
| 5 | 5 |
| 6 typedef T F<T>(T t); | 6 typedef T F<T>(T t); |
| 7 | 7 |
| 8 class Parameterized<T> { | 8 class Parameterized<T> { |
| 9 Parameterized() { } | 9 Parameterized() { } |
| 10 T mul3(F f, T t) { return 3*f(t); } | 10 T mul3(F f, T t) { return 3*f(t); } |
| 11 T test(T t) { | 11 T test(T t) { |
| 12 return mul3(T _(T t) { return 3*t; }, t); | 12 return mul3((T t) { return 3*t; }, t); |
| 13 } | 13 } |
| 14 } | 14 } |
| 15 | 15 |
| 16 class LocalFunction2Test { | 16 class LocalFunction2Test { |
| 17 static int f(int n) { | 17 static int f(int n) { |
| 18 int a = 0; | 18 int a = 0; |
| 19 var g = (int n) { | 19 var g = (int n) { |
| 20 a += n; | 20 a += n; |
| 21 return a; | 21 return a; |
| 22 }; | 22 }; |
| 23 var h = (int n) { | 23 var h = (int n) { |
| 24 a += 10*n; | 24 a += 10*n; |
| 25 return a; | 25 return a; |
| 26 }; | 26 }; |
| 27 return g(n) + h(n); | 27 return g(n) + h(n); |
| 28 } | 28 } |
| 29 | 29 |
| 30 static testMain() { | 30 static testMain() { |
| 31 Expect.equals(3 + 33, f(3)); | 31 Expect.equals(3 + 33, f(3)); |
| 32 Expect.equals(9.0, new Parameterized<double>().test(1.0)); | 32 Expect.equals(9.0, new Parameterized<double>().test(1.0)); |
| 33 } | 33 } |
| 34 } | 34 } |
| 35 | 35 |
| 36 main() { | 36 main() { |
| 37 LocalFunction2Test.testMain(); | 37 LocalFunction2Test.testMain(); |
| 38 } | 38 } |
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