| // 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 A type alias declares a name for a type expression. |
| /// <typeAlias> ::=<metadata> typedef <typeIdentifier> <typeParameters>?‘=’<type> |
| /// ‘;’ |
| /// | <metadata> typedef <functionTypeAlias> |
| /// <functionTypeAlias> ::= <functionPrefix> <formalParameterPart> ‘;’ |
| /// <functionPrefix> ::= <type>? <identifier> |
| /// @description Checks that it is a syntax error if type alias uses 'extends' |
| /// keyword |
| /// @author sgrekhov@unipro.ru |
| |
| class A<T> {} |
| class C<T1, T2> {} |
| |
| typedef Alias<T> = A<T extends num>; //# 01: syntax error |
| typedef Clias<T1, T2> = C<T2 extends T1>; //# 02: syntax error |
| |
| main() { |
| } |
