Language/13_Statements/11_Try_A02_t04.dart

/*
 * 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 An on-catch clause of the form on T catch (p1 , p2 ) s matches an object o if
 * the type of o is a subtype of T.
 * @description Checks that it is not an error when the least specific catch clause is
 * placed first, followed by more specific, and therefore redundant, catch clauses
 * and that an exception can not be caught with clauses that don't match.
 * @author iefremov
 * @reviewer rodionov
 */
import "../../Utils/expect.dart";

class A {}
class B extends A {}
class C extends B {}

main() {
  try {
    try {
      throw new Object();
    } on A catch(ex, p2) {
      Expect.fail("This clause shouldn't be executed");
    } on B catch(ex, p2) {
      Expect.fail("This clause shouldn't be executed");
    } on C catch(ex, p2) {
      Expect.fail("This clause shouldn't be executed");
    }
  } on Object catch(o, p2) {}
}