// 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 Evaluation of a throw expression of the form throw e; proceeds as
/// follows:
/// The expression e is evaluated yielding a value v.
/// If v evaluates to null, then a NullThrownError is thrown. Otherwise, control
/// is transferred to the nearest dynamically enclosing exception handler, with
/// the current exception set to v and the current return value becomes
/// undefined.
/// @description Checks that an expression statement of the form "throw e;"
/// indeed raises an exception and transfers control to the nearest enclosing
/// exception handler if there is one.
///
/// @author rodionov

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

main() {
  void f() => throw "";
  Expect.throws(f, (e) => e is String);
  Expect.throws(() => throw "", (e) => e is String);
}
