/*

 * Copyright (c) 2000, 2002, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 *

 */

package sun.jvm.hotspot.runtime;

import sun.jvm.hotspot.debugger.*;

import sun.jvm.hotspot.types.*;

/** This is a base class for all VM runtime objects which wrap

    Addresses. The rationale is that without this in place, every

    class would have to implement equals() and hashCode() with

    boilerplate code, a practice which is inherently error-prone. */

public class VMObject {

  protected Address addr;

  /** All of the objects have this as their constructor's signature

      anyway */

  public VMObject(Address addr) {

    this.addr = addr;

  }

  public String toString() {

    return getClass().getName() + "@" + addr;

  }

  public boolean equals(Object arg) {

    if (arg == null) {

      return false;

    }

    if (!getClass().equals(arg.getClass())) {

      return false;

    }

    VMObject obj = (VMObject) arg;

    if (!addr.equals(obj.addr)) {

      return false;

    }

    return true;

  }

  public int hashCode() {

    return addr.hashCode();

  }

  public Address getAddress() {

    return addr;

  }

}