// 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 The cast expression ensures that an object is a member of a type.
/// typeCast:
///   asOperator type
/// ;
/// asOperator:
///   as
/// ;
/// @description Checks that there're no errors or warnings when the type cast
/// operator is used correctly (testing simple types as well as generics and
/// function types).
/// @author rodionov

import '../../../Utils/expect.dart';

abstract class I {}
class C implements I {}

class G<Q, R> {}
class GG<S, T> extends G<S, T> {}

typedef String func(num n, String p);
num f(double d, Pattern p) { return double.nan; }

main() {
  1 as int;
  0 as num;
  double.nan as num;
  "foo" as String;
  "bar" as Pattern;
  new C() as I;
  new GG<int, bool>() as G<int, bool>;
  ((num x, String y) => "$x$y") as func;
  Expect.throws(() { f as func; });
  f as Function;
  f as Object;
}