| // Copyright (c) 2017, 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=2.12 |
| |
| // Verify that function type parameter S can be resolved in bar's result type. |
| // Verify that generic function types are not allowed as type arguments. |
| |
| import "package:expect/expect.dart"; |
| |
| int foo |
| <T> |
| (int i, int j) => i + j; |
| |
| List<int Function<T>(S, int)> bar<S extends int>() { |
| // ^^^^^^^^^^^^^^^^^^^^^^^ |
| // [analyzer] COMPILE_TIME_ERROR.GENERIC_FUNCTION_TYPE_CANNOT_BE_TYPE_ARGUMENT |
| // ^ |
| // [cfe] A generic function type can't be used as a type argument. |
| return <int Function<T>(S, int)>[foo, foo]; |
| } |
| |
| void main() { |
| var list = bar<int>(); |
| // ^ |
| // [cfe] Generic function type 'int Function<T>(int, int)' inferred as a type argument. |
| print(list[0].runtimeType); |
| Expect.equals(123, list[1](100, 23)); |
| } |