| /* |
| * 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) { |
| tty.print("scalarObj[" + id + "]"); |
| } |
| |
| void printFieldsOn(PrintStream tty) { |
| if (fieldsValue.size() > 0) { |
| ((ScopeValue)fieldsValue.get(0)).printOn(tty); |
| } |
| for (int i = 1; i < fieldsValue.size(); i++) { |
| tty.print(", "); |
| ((ScopeValue)fieldsValue.get(i)).printOn(tty); |
| } |
| } |
| |
| }; |