| // Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| // @dart = 2.7 |
| |
| // dart2jsOptions=--strong |
| |
| import 'package:expect/expect.dart'; |
| |
| class Class1 { |
| num method1<T>(num n) => null; |
| |
| num method2<T>(int n) => null; |
| |
| int method3<T>(num n) => null; |
| } |
| |
| class Class2 { |
| num method4<T>(T n) => null; |
| } |
| |
| class Class3 { |
| T method5<T>(num n) => null; |
| } |
| |
| class Class4 { |
| num method6<T>(num n, T t) => null; |
| } |
| |
| num method7<T>(T n) => null; |
| |
| T method8<T>(num n) => null; |
| |
| num method9<T>(num n, T t) => null; |
| |
| @pragma('dart2js:noInline') |
| test(o) => o is num Function(num); |
| |
| forceInstantiation(num Function(num) f) => f; |
| |
| main() { |
| Expect.isFalse(test(new Class1().method1)); |
| Expect.isFalse(test(new Class1().method2)); |
| Expect.isFalse(test(new Class1().method3)); |
| Expect.isTrue(test(forceInstantiation(new Class2().method4))); |
| Expect.isTrue(test(forceInstantiation(new Class3().method5))); |
| Expect.isFalse(test(new Class4().method6)); |
| Expect.isTrue(test(forceInstantiation(method7))); |
| Expect.isTrue(test(forceInstantiation(method8))); |
| Expect.isFalse(test(method9)); |
| } |