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/*
* Copyright (c) 2001, 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.bugspot;
import java.awt.*;
import javax.swing.*;
import java.util.*;
import sun.jvm.hotspot.debugger.*;
import sun.jvm.hotspot.debugger.cdbg.*;
import sun.jvm.hotspot.bugspot.tree.*;
import sun.jvm.hotspot.oops.*;
import sun.jvm.hotspot.runtime.*;
import sun.jvm.hotspot.ui.tree.*;
import sun.jvm.hotspot.ui.treetable.*;
/** Manages display of a set of local variables in a frame, or the
contents of the "this" pointer */
public class VariablePanel extends JPanel {
private JTreeTable treeTable;
private SimpleTreeTableModel model;
private SimpleTreeGroupNode root;
public VariablePanel() {
super();
model = new SimpleTreeTableModel();
model.setValuesEditable(false);
root = new SimpleTreeGroupNode();
model.setRoot(root);
treeTable = new JTreeTable(model);
treeTable.setRootVisible(false);
treeTable.setShowsRootHandles(true);
treeTable.setShowsIcons(false);
treeTable.setTreeEditable(false);
treeTable.getTableHeader().setReorderingAllowed(false);
treeTable.setCellSelectionEnabled(true);
treeTable.setSelectionMode(ListSelectionModel.SINGLE_INTERVAL_SELECTION);
treeTable.setDragEnabled(true);
JScrollPane sp = new JScrollPane(treeTable);
sp.getViewport().setBackground(Color.white);
setLayout(new BorderLayout());
add(sp, BorderLayout.CENTER);
}
/** Clear the contents of this VariablePanel */
public void clear() {
root.removeAllChildren();
model.fireTreeStructureChanged();
}
/** Update the contents of this VariablePanel from the given CFrame */
public void update(CFrame fr) {
// Collect locals
CCollector coll = new CCollector();
fr.iterateLocals(coll);
update(coll);
}
/** Update the contents of this VariablePanel from the given JavaVFrame */
public void update(JavaVFrame jfr) {
Method m = jfr.getMethod();
if (!m.hasLocalVariableTable()) {
return;
}
int bci = jfr.getBCI();
// Get local variable table
LocalVariableTableElement[] locals = m.getLocalVariableTable();
// Get locals as StackValueCollection
StackValueCollection coll = jfr.getLocals();
root.removeAllChildren();
// See which locals are live
for (int i = 0; i < locals.length; i++) {
LocalVariableTableElement local = locals[i];
if (local.getStartBCI() <= bci && bci < local.getStartBCI() + local.getLength()) {
// Valid; add it
SimpleTreeNode node = null;
Symbol name = null;
try {
name = m.getConstants().getSymbolAt(local.getNameCPIndex());
if (name == null) {
System.err.println("Null name at slot " +
local.getNameCPIndex() +
" for local variable at slot " +
local.getSlot());
continue;
}
} catch (Exception e) {
System.err.println("Unable to fetch name at slot " +
local.getNameCPIndex() +
" for local variable at slot " +
local.getSlot());
e.printStackTrace();
continue;
}
sun.jvm.hotspot.oops.NamedFieldIdentifier f =
new sun.jvm.hotspot.oops.NamedFieldIdentifier(name.asString());
Symbol descriptor = null;
try {
descriptor = m.getConstants().getSymbolAt(local.getDescriptorCPIndex());
} catch (Exception e) {
System.err.println("Unable to fetch descriptor at slot " +
local.getDescriptorCPIndex() +
" for local variable " + f.getName() +
" at slot " + local.getSlot());
e.printStackTrace();
continue;
}
if (descriptor != null) {
switch (descriptor.getByteAt(0)) {
case 'F': {
node = new sun.jvm.hotspot.ui.tree.FloatTreeNodeAdapter(coll.floatAt(local.getSlot()), f, true);
break;
}
case 'D': {
node = new sun.jvm.hotspot.ui.tree.DoubleTreeNodeAdapter(coll.doubleAt(local.getSlot()), f, true);
break;
}
case 'C': {
node = new sun.jvm.hotspot.ui.tree.CharTreeNodeAdapter((char) coll.intAt(local.getSlot()), f, true);
break;
}
case 'B':
case 'S':
case 'I': {
node = new sun.jvm.hotspot.ui.tree.LongTreeNodeAdapter(coll.intAt(local.getSlot()), f, true);
break;
}
case 'Z': {
node = new sun.jvm.hotspot.ui.tree.BooleanTreeNodeAdapter(
((coll.intAt(local.getSlot()) != 0) ? true : false), f, true
);
break;
}
case 'J': {
node = new sun.jvm.hotspot.ui.tree.LongTreeNodeAdapter(coll.longAt(local.getSlot()), f, true);
break;
}
default: {
try {
node = new sun.jvm.hotspot.ui.tree.OopTreeNodeAdapter(
VM.getVM().getObjectHeap().newOop(coll.oopHandleAt(local.getSlot())), f, true
);
} catch (AddressException e) {
node = new sun.jvm.hotspot.ui.tree.FieldTreeNodeAdapter(f, true) {
public int getChildCount() { return 0; }
public SimpleTreeNode getChild(int i) { return null; }
public boolean isLeaf() { return false; }
public int getIndexOfChild(SimpleTreeNode child) { return 0; }
public String getValue() {
return "<Bad oop>";
}
};
}
break;
}
}
if (node != null) {
root.addChild(node);
}
}
}
}
model.fireTreeStructureChanged();
}
/** Update the contents of this VariablePanel from the given "this"
pointer of the given type */
public void update(Address thisAddr, Type type) {
// Collect fields
CCollector coll = new CCollector();
type.iterateObject(thisAddr, coll);
update(coll);
}
private void update(CCollector coll) {
root.removeAllChildren();
for (int i = 0; i < coll.getNumChildren(); i++) {
root.addChild(coll.getChild(i));
}
model.fireTreeStructureChanged();
}
static class CCollector extends DefaultObjectVisitor {
private java.util.List children;
public CCollector() {
children = new ArrayList();
}
public int getNumChildren() {
return children.size();
}
public SimpleTreeNode getChild(int i) {
return (SimpleTreeNode) children.get(i);
}
public void doBit(sun.jvm.hotspot.debugger.cdbg.FieldIdentifier f, long val) {
children.add(new sun.jvm.hotspot.bugspot.tree.LongTreeNodeAdapter(val, f, true));
}
public void doInt(sun.jvm.hotspot.debugger.cdbg.FieldIdentifier f, long val) {
children.add(new sun.jvm.hotspot.bugspot.tree.LongTreeNodeAdapter(val, f, true));
}
public void doEnum(sun.jvm.hotspot.debugger.cdbg.FieldIdentifier f, long val, String enumName) {
children.add(new sun.jvm.hotspot.bugspot.tree.EnumTreeNodeAdapter(enumName, val, f, true));
}
public void doFloat(sun.jvm.hotspot.debugger.cdbg.FieldIdentifier f, float val) {
children.add(new sun.jvm.hotspot.bugspot.tree.FloatTreeNodeAdapter(val, f, true));
}
public void doDouble(sun.jvm.hotspot.debugger.cdbg.FieldIdentifier f, double val) {
children.add(new sun.jvm.hotspot.bugspot.tree.DoubleTreeNodeAdapter(val, f, true));
}
public void doPointer(sun.jvm.hotspot.debugger.cdbg.FieldIdentifier f, Address val) {
children.add(new sun.jvm.hotspot.bugspot.tree.AddressTreeNodeAdapter(val, f, true));
}
public void doArray(sun.jvm.hotspot.debugger.cdbg.FieldIdentifier f, Address val) {
children.add(new sun.jvm.hotspot.bugspot.tree.AddressTreeNodeAdapter(val, f, true));
}
public void doRef(sun.jvm.hotspot.debugger.cdbg.FieldIdentifier f, Address val) {
children.add(new sun.jvm.hotspot.bugspot.tree.AddressTreeNodeAdapter(val, f, true));
}
public void doCompound(sun.jvm.hotspot.debugger.cdbg.FieldIdentifier f, Address val) {
children.add(new sun.jvm.hotspot.bugspot.tree.ObjectTreeNodeAdapter(val, f, true));
}
}
}
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