Language/Types/Type_Aliases/syntax_t05.dart

// 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 compile error if type alias has wrong number
/// of type parameters
/// @author sgrekhov@unipro.ru

// SharedOptions=--enable-experiment=nonfunction-type-aliases

class A {}
class C<T1, T2> {}

typedef Alias1<T> = A<T>;                       //# 01: compile-time error
typedef Alias2 = A<int>;                        //# 02: compile-time error
typedef Alias3<T> = C<T>;                       //# 03: compile-time error
typedef Alias4<T1, T2, T3> = C<T1, T2, T3>;     //# 04: compile-time error
typedef Alias5<T1, T2, T3> = C<T3>;             //# 05: compile-time error
typedef Alias6<T1, T2> = C<T1, T2, String>;     //# 06: compile-time error
typedef Alias7<T1, T2> = C<T2 extends T1>;      //# 07: compile-time error

main() {
}