| /* |
| * Copyright 2005-2006 Sun Microsystems, Inc. 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. Sun designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Sun in the LICENSE file that accompanied this code. |
| * |
| * 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| */ |
| |
| |
| /* |
| * The contents of this file are subject to the Sun Public License |
| * Version 1.0 (the "License"); you may not use this file except in |
| * compliance with the License. A copy of the License is available at |
| * http://www.sun.com/, and in the file LICENSE.html in the |
| * doc directory. |
| * |
| * The Original Code is HAT. The Initial Developer of the |
| * Original Code is Bill Foote, with contributions from others |
| * at JavaSoft/Sun. Portions created by Bill Foote and others |
| * at Javasoft/Sun are Copyright (C) 1997-2004. All Rights Reserved. |
| * |
| * In addition to the formal license, I ask that you don't |
| * change the history or donations files without permission. |
| * |
| */ |
| |
| package com.sun.tools.hat.internal.model; |
| |
| import com.sun.tools.hat.internal.util.Misc; |
| |
| /** |
| * A forward reference to an object. This is an intermediate representation |
| * for a JavaThing, when we have the thing's ID, but we might not have read |
| * the thing yet. |
| * |
| * @author Bill Foote |
| */ |
| public class JavaObjectRef extends JavaThing { |
| private long id; |
| |
| public JavaObjectRef(long id) { |
| this.id = id; |
| } |
| |
| public long getId() { |
| return id; |
| } |
| |
| public boolean isHeapAllocated() { |
| return true; |
| } |
| |
| public JavaThing dereference(Snapshot snapshot, JavaField field) { |
| return dereference(snapshot, field, true); |
| } |
| |
| public JavaThing dereference(Snapshot snapshot, JavaField field, boolean verbose) { |
| if (field != null && !field.hasId()) { |
| // If this happens, we must be a field that represents an int. |
| // (This only happens with .bod-style files) |
| return new JavaLong(id); |
| } |
| if (id == 0) { |
| return snapshot.getNullThing(); |
| } |
| JavaThing result = snapshot.findThing(id); |
| if (result == null) { |
| if (!snapshot.getUnresolvedObjectsOK() && verbose) { |
| String msg = "WARNING: Failed to resolve object id " |
| + Misc.toHex(id); |
| if (field != null) { |
| msg += " for field " + field.getName() |
| + " (signature " + field.getSignature() + ")"; |
| } |
| System.out.println(msg); |
| // Thread.dumpStack(); |
| } |
| result = new HackJavaValue("Unresolved object " |
| + Misc.toHex(id), 0); |
| } |
| return result; |
| } |
| |
| public int getSize() { |
| return 0; |
| } |
| |
| public String toString() { |
| return "Unresolved object " + Misc.toHex(id); |
| } |
| } |