/*
* Copyright (c) 2009, 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.code;
import java.io.*;
import java.util.*;
import sun.jvm.hotspot.debugger.*;
import sun.jvm.hotspot.utilities.*;
/** An ObjectValue describes an object eliminated by escape analysis. */
public class ObjectValue extends ScopeValue {
private int id;
private ScopeValue klass;
private List fieldsValue; // ArrayList<ScopeValue>
// Field "boolean visited" is not implemented here since
// it is used only a during debug info creation.
public ObjectValue(int id) {
this.id = id;
klass = null;
fieldsValue = new ArrayList();
}
public boolean isObject() { return true; }
public int id() { return id; }
public ScopeValue getKlass() { return klass; }
public List getFieldsValue() { return fieldsValue; }
public ScopeValue getFieldAt(int i) { return (ScopeValue)fieldsValue.get(i); }
public int fieldsSize() { return fieldsValue.size(); }
// Field "value" is always NULL here since it is used
// only during deoptimization of a compiled frame
// pointing to reallocated object.
public OopHandle getValue() { return null; }
/** Serialization of debugging information */
void readObject(DebugInfoReadStream stream) {
klass = readFrom(stream);
Assert.that(klass.isConstantOop(), "should be constant klass oop");
int length = stream.readInt();
for (int i = 0; i < length; i++) {
ScopeValue val = readFrom(stream);
fieldsValue.add(val);
}
}
// Printing
public void print() {
printOn(System.out);
}
public void printOn(PrintStream tty) {
/**代码未完, 请加载全部代码(NowJava.com).**/