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