/***
* ASM XML Adapter
* Copyright (c) 2004, Eugene Kuleshov
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.objectweb.asm.xml;
import java.util.HashMap;
import java.util.Map;
import org.objectweb.asm.AnnotationVisitor;
import org.objectweb.asm.Attribute;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;
import org.objectweb.asm.Label;
import org.objectweb.asm.Type;
import org.objectweb.asm.util.AbstractVisitor;
import org.xml.sax.ContentHandler;
import org.xml.sax.helpers.AttributesImpl;
/**
* A {@link MethodVisitor} that generates SAX 2.0 events from the visited
* method.
*
* @see org.objectweb.asm.xml.SAXClassAdapter
* @see org.objectweb.asm.xml.Processor
*
* @author Eugene Kuleshov
*/
public final class SAXCodeAdapter extends SAXAdapter implements MethodVisitor {
private Map labelNames;
/**
* Constructs a new {@link SAXCodeAdapter SAXCodeAdapter} object.
*
* @param h content handler that will be used to send SAX 2.0 events.
* @param access
*/
public SAXCodeAdapter(ContentHandler h, int access) {
super(h);
labelNames = new HashMap();
if ((access & (Opcodes.ACC_ABSTRACT | Opcodes.ACC_INTERFACE | Opcodes.ACC_NATIVE)) == 0)
{
addStart("code", new AttributesImpl());
}
}
public final void visitCode() {
}
public final void visitInsn(int opcode) {
addElement(AbstractVisitor.OPCODES[opcode], new AttributesImpl());
}
public final void visitIntInsn(int opcode, int operand) {
AttributesImpl attrs = new AttributesImpl();
attrs.addAttribute("", "value", "value", "", Integer.toString(operand));
addElement(AbstractVisitor.OPCODES[opcode], attrs);
}
public final void visitVarInsn(int opcode, int var) {
AttributesImpl attrs = new AttributesImpl();
attrs.addAttribute("", "var", "var", "", Integer.toString(var));
addElement(AbstractVisitor.OPCODES[opcode], attrs);
}
public final void visitTypeInsn(int opcode, String desc) {
AttributesImpl attrs = new AttributesImpl();
attrs.addAttribute("", "desc", "desc", "", desc);
addElement(AbstractVisitor.OPCODES[opcode], attrs);
}
public final void visitFieldInsn(
int opcode,
String owner,
String name,
String desc)
{
AttributesImpl attrs = new AttributesImpl();
attrs.addAttribute("", "owner", "owner", "", owner);
attrs.addAttribute("", "name", "name", "", name);
attrs.addAttribute("", "desc", "desc", "", desc);
addElement(AbstractVisitor.OPCODES[opcode], attrs);
}
public final void visitMethodInsn(
int opcode,
String owner,
String name,
String desc)
{
AttributesImpl attrs = new AttributesImpl();
attrs.addAttribute("", "owner", "owner", "", owner);
attrs.addAttribute("", "name", "name", "", name);
attrs.addAttribute("", "desc", "desc", "", desc);
addElement(AbstractVisitor.OPCODES[opcode], attrs);
}
public final void visitJumpInsn(int opcode, Label label) {
AttributesImpl attrs = new AttributesImpl();
attrs.addAttribute("", "label", "label", "", getLabel(label));
addElement(AbstractVisitor.OPCODES[opcode], attrs);
}
public final void visitLabel(Label label) {
AttributesImpl attrs = new AttributesImpl();
attrs.addAttribute("", "name", "name", "", getLabel(label));
addElement("Label", attrs);
}
public final void visitLdcInsn(Object cst) {
AttributesImpl attrs = new AttributesImpl();
attrs.addAttribute("",
"cst",
"cst",
"",
SAXClassAdapter.encode(cst.toString()));
attrs.addAttribute("",
"desc",
"desc",
"",
Type.getDescriptor(cst.getClass()));
addElement(AbstractVisitor.OPCODES[Opcodes.LDC], attrs);
}
public final void visitIincInsn(int var, int increment) {
AttributesImpl attrs = new AttributesImpl();
attrs.addAttribute("", "var", "var", "", Integer.toString(var));
attrs.addAttribute("", "inc", "inc", "", Integer.toString(increment));
addElement(AbstractVisitor.OPCODES[Opcodes.IINC], attrs);
}
public final void visitTableSwitchInsn(
int min,
int max,
Label dflt,
Label[] labels)
{
AttributesImpl attrs = new AttributesImpl();
attrs.addAttribute("", "min", "min", "", Integer.toString(min));
attrs.addAttribute("", "max", "max", "", Integer.toString(max));
attrs.addAttribute("", "dflt", "dflt", "", getLabel(dflt));
String o = AbstractVisitor.OPCODES[Opcodes.TABLESWITCH];
addStart(o, attrs);
for (int i = 0; i < labels.length; i++) {
AttributesImpl att2 = new AttributesImpl();
att2.addAttribute("", "name", "name", "", getLabel(labels[i]));
addElement("label", att2);
}
addEnd(o);
}
public final void visitLookupSwitchInsn(
Label dflt,
int[] keys,
Label[] labels)
{
AttributesImpl att = new AttributesImpl();
att.addAttribute("", "dflt", "dflt", "", getLabel(dflt));
String o = AbstractVisitor.OPCODES[Opcodes.LOOKUPSWITCH];
addStart(o, att);
for (int i = 0; i < labels.length; i++) {
AttributesImpl att2 = new AttributesImpl();
att2.addAttribute("", "name", "name", "", getLabel(labels[i]));
att2.addAttribute("", "key", "key", "", Integer.toString(keys[i]));
addElement("label", att2);
}
addEnd(o);
}
public final void visitMultiANewArrayInsn(String desc, int dims) {
AttributesImpl attrs = new AttributesImpl();
attrs.addAttribute("", "desc", "desc", "", desc);
attrs.addAttribute("", "dims", "dims", "", Integer.toString(dims));
addElement(AbstractVisitor.OPCODES[Opcodes.MULTIANEWARRAY], attrs);
}
public final void visitTryCatchBlock(
Label start,
Label end,
Label handler,
String type)
{
AttributesImpl attrs = new AttributesImpl();
attrs.addAttribute("", "start", "start", "", getLabel(start));
attrs.addAttribute("", "end", "end", "", getLabel(end));
attrs.addAttribute("", "handler", "handler", "", getLabel(handler));
if (type != null)
attrs.addAttribute("", "type", "type", "", type);
addElement("TryCatch", attrs);
}
public final void visitMaxs(int maxStack, int maxLocals) {
AttributesImpl attrs = new AttributesImpl();
attrs.addAttribute("",
"maxStack",
"maxStack",
"",
Integer.toString(maxStack));
attrs.addAttribute("",
"maxLocals",
"maxLocals",
"",
Integer.toString(maxLocals));
addElement("Max", attrs);
addEnd("code");
}
public void visitLocalVariable(
String name,
String desc,
String signature,
Label start,
Label end,
int index)
{
AttributesImpl attrs = new AttributesImpl();
attrs.addAttribute("", "name", "name", "", name);
attrs.addAttribute("", "desc", "desc", "", desc);
if (signature != null)
attrs.addAttribute("",
"signature",
"signature",
"",
SAXClassAdapter.encode(signature));
attrs.addAttribute("", "start", "start", "", getLabel(start));
attrs.addAttribute("", "end", "end", "", getLabel(end));
attrs.addAttribute("", "var", "var", "", Integer.toString(index));
addElement("LocalVar", attrs);
}
public final void visitLineNumber(int line, Label start) {
AttributesImpl attrs = new AttributesImpl();
attrs.addAttribute("", "line", "line", "", Integer.toString(line));
attrs.addAttribute("", "start", "start", "", getLabel(start));
addElement("LineNumber", attrs);
}
public AnnotationVisitor visitAnnotationDefault() {
return new SAXAnnotationAdapter(getContentHandler(),
"annotationDefault",
0,
null,
null);
}
public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
return new SAXAnnotationAdapter(getContentHandler(),
"annotation",
visible ? 1 : -1,
null,
desc);
}
public AnnotationVisitor visitParameterAnnotation(
int parameter,
String desc,
boolean visible)
{
return new SAXAnnotationAdapter(getContentHandler(),
"parameterAnnotation",
visible ? 1 : -1,
parameter,
desc);
}
public void visitEnd() {
addEnd("method");
}
public final void visitAttribute(Attribute attr) {
// TODO Auto-generated SAXCodeAdapter.visitAttribute
}
private final String getLabel(Label label) {
String name = (String) labelNames.get(label);
if (name == null) {
name = Integer.toString(labelNames.size());
labelNames.put(label, name);
}
return name;
}
}