| // Copyright (c) 2019, 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. |
| |
| /// @assertion |
| /// typeParameter ::= metadata identifier (extends typeNotVoid)? |
| /// typeParameters ::= ‘<’ typeParameter (‘,’ typeParameter)* ‘>’ |
| /// ... |
| /// Type parameters are declared in the type parameter scope of a class or |
| /// function. The type parameters of a generic [G] are in scope in the bounds of |
| /// all of the type parameters of [G]. |
| /// @description Checks that typedef type parameter is in the type parameter |
| /// scope. |
| /// @author iarkh@unipro.ru |
| |
| |
| import "../../Utils/expect.dart"; |
| |
| class A {} |
| |
| typedef Test<X1 extends A, X2 extends X1> = X1 Function(X2); |
| typedef Expected1 = A Function(Never); |
| typedef Expected2 = A Function(A); |
| |
| main() { |
| Expect.equals(Expected1, Test); |
| Expect.notEquals(Expected2, Test); |
| } |
