// Copyright (c) 2011, 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 It is a compile-time error if the arity of the user-declared | |
/// operator - is not 0 or 1. | |
/// The - operator is unique in that two overloaded versions are permitted. | |
/// If the operator has no arguments, it denotes unary minus. | |
/// If it as an argument, it denotes binary subtraction. | |
/// @description Checks that a compile-time error is produced if a user-defined | |
/// operator - specifies two parameters. | |
/// @author kaigorodov | |
class C { | |
operator -(var val, var val2) {} | |
// ^ | |
// [analyzer] unspecified | |
// [cfe] unspecified | |
} | |
main() { | |
new C() - new C(); | |
} |