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Clisprail
363 lines
14 KiB
Java
363 lines
14 KiB
Java
/***
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* ASM XML Adapter
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* Copyright (c) 2004-2011, 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.Handle;
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import org.objectweb.asm.Label;
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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.Type;
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import org.objectweb.asm.util.Printer;
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import org.xml.sax.helpers.AttributesImpl;
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/**
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* A {@link org.objectweb.asm.MethodVisitor} that generates SAX 2.0 events from the visited
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* method.
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*
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* @see SAXClassAdapter
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* @see 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 MethodVisitor {
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static final String[] TYPES = { "top", "int", "float", "double", "long",
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"null", "uninitializedThis" };
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SAXAdapter sa;
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private final Map<Label, String> labelNames;
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/**
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* Constructs a new {@link org.objectweb.asm.xml.SAXCodeAdapter SAXCodeAdapter} object.
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*
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* @param sa
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* content handler that will be used to send SAX 2.0 events.
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*/
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public SAXCodeAdapter(final SAXAdapter sa, final int access) {
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super(Opcodes.ASM4);
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this.sa = sa;
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this.labelNames = new HashMap<Label, String>();
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if ((access & (Opcodes.ACC_ABSTRACT | Opcodes.ACC_INTERFACE | Opcodes.ACC_NATIVE)) == 0) {
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sa.addStart("code", new AttributesImpl());
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}
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}
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@Override
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public final void visitCode() {
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}
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@Override
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public void visitFrame(final int type, final int nLocal,
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final Object[] local, final int nStack, final Object[] stack) {
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AttributesImpl attrs = new AttributesImpl();
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switch (type) {
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case Opcodes.F_NEW:
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case Opcodes.F_FULL:
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if (type == Opcodes.F_NEW) {
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attrs.addAttribute("", "type", "type", "", "NEW");
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} else {
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attrs.addAttribute("", "type", "type", "", "FULL");
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}
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sa.addStart("frame", attrs);
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appendFrameTypes(true, nLocal, local);
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appendFrameTypes(false, nStack, stack);
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break;
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case Opcodes.F_APPEND:
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attrs.addAttribute("", "type", "type", "", "APPEND");
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sa.addStart("frame", attrs);
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appendFrameTypes(true, nLocal, local);
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break;
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case Opcodes.F_CHOP:
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attrs.addAttribute("", "type", "type", "", "CHOP");
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attrs.addAttribute("", "count", "count", "",
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Integer.toString(nLocal));
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sa.addStart("frame", attrs);
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break;
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case Opcodes.F_SAME:
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attrs.addAttribute("", "type", "type", "", "SAME");
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sa.addStart("frame", attrs);
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break;
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case Opcodes.F_SAME1:
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attrs.addAttribute("", "type", "type", "", "SAME1");
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sa.addStart("frame", attrs);
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appendFrameTypes(false, 1, stack);
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break;
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}
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sa.addEnd("frame");
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}
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private void appendFrameTypes(final boolean local, final int n,
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final Object[] types) {
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for (int i = 0; i < n; ++i) {
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Object type = types[i];
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AttributesImpl attrs = new AttributesImpl();
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if (type instanceof String) {
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attrs.addAttribute("", "type", "type", "", (String) type);
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} else if (type instanceof Integer) {
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attrs.addAttribute("", "type", "type", "",
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TYPES[((Integer) type).intValue()]);
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} else {
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attrs.addAttribute("", "type", "type", "", "uninitialized");
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attrs.addAttribute("", "label", "label", "",
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getLabel((Label) type));
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}
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sa.addElement(local ? "local" : "stack", attrs);
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}
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}
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@Override
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public final void visitInsn(final int opcode) {
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sa.addElement(Printer.OPCODES[opcode], new AttributesImpl());
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}
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@Override
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public final void visitIntInsn(final int opcode, final 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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sa.addElement(Printer.OPCODES[opcode], attrs);
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}
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@Override
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public final void visitVarInsn(final int opcode, final 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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sa.addElement(Printer.OPCODES[opcode], attrs);
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}
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@Override
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public final void visitTypeInsn(final int opcode, final String type) {
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AttributesImpl attrs = new AttributesImpl();
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attrs.addAttribute("", "desc", "desc", "", type);
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sa.addElement(Printer.OPCODES[opcode], attrs);
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}
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@Override
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public final void visitFieldInsn(final int opcode, final String owner,
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final String name, final String desc) {
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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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sa.addElement(Printer.OPCODES[opcode], attrs);
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}
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@Override
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public final void visitMethodInsn(final int opcode, final String owner,
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final String name, final String desc) {
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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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sa.addElement(Printer.OPCODES[opcode], attrs);
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}
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@Override
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public void visitInvokeDynamicInsn(String name, String desc, Handle bsm,
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Object... bsmArgs) {
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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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attrs.addAttribute("", "bsm", "bsm", "",
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SAXClassAdapter.encode(bsm.toString()));
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sa.addStart("INVOKEDYNAMIC", attrs);
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for (int i = 0; i < bsmArgs.length; i++) {
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sa.addElement("bsmArg", getConstantAttribute(bsmArgs[i]));
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}
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sa.addEnd("INVOKEDYNAMIC");
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}
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@Override
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public final void visitJumpInsn(final int opcode, final Label label) {
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AttributesImpl attrs = new AttributesImpl();
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attrs.addAttribute("", "label", "label", "", getLabel(label));
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sa.addElement(Printer.OPCODES[opcode], attrs);
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}
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@Override
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public final void visitLabel(final Label label) {
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AttributesImpl attrs = new AttributesImpl();
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attrs.addAttribute("", "name", "name", "", getLabel(label));
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sa.addElement("Label", attrs);
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}
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@Override
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public final void visitLdcInsn(final Object cst) {
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sa.addElement(Printer.OPCODES[Opcodes.LDC], getConstantAttribute(cst));
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}
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private static AttributesImpl getConstantAttribute(final Object cst) {
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AttributesImpl attrs = new AttributesImpl();
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attrs.addAttribute("", "cst", "cst", "",
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SAXClassAdapter.encode(cst.toString()));
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attrs.addAttribute("", "desc", "desc", "",
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Type.getDescriptor(cst.getClass()));
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return attrs;
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}
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@Override
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public final void visitIincInsn(final int var, final 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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sa.addElement(Printer.OPCODES[Opcodes.IINC], attrs);
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}
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@Override
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public final void visitTableSwitchInsn(final int min, final int max,
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final Label dflt, final Label... labels) {
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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 = Printer.OPCODES[Opcodes.TABLESWITCH];
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sa.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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sa.addElement("label", att2);
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}
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sa.addEnd(o);
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}
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@Override
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public final void visitLookupSwitchInsn(final Label dflt, final int[] keys,
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final Label[] labels) {
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AttributesImpl att = new AttributesImpl();
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att.addAttribute("", "dflt", "dflt", "", getLabel(dflt));
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String o = Printer.OPCODES[Opcodes.LOOKUPSWITCH];
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sa.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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sa.addElement("label", att2);
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}
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sa.addEnd(o);
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}
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@Override
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public final void visitMultiANewArrayInsn(final String desc, final 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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sa.addElement(Printer.OPCODES[Opcodes.MULTIANEWARRAY], attrs);
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}
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@Override
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public final void visitTryCatchBlock(final Label start, final Label end,
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final Label handler, final String type) {
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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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}
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sa.addElement("TryCatch", attrs);
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}
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@Override
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public final void visitMaxs(final int maxStack, final int maxLocals) {
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AttributesImpl attrs = new AttributesImpl();
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attrs.addAttribute("", "maxStack", "maxStack", "",
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Integer.toString(maxStack));
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attrs.addAttribute("", "maxLocals", "maxLocals", "",
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Integer.toString(maxLocals));
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sa.addElement("Max", attrs);
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sa.addEnd("code");
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}
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@Override
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public void visitLocalVariable(final String name, final String desc,
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final String signature, final Label start, final Label end,
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final int index) {
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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("", "signature", "signature", "",
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SAXClassAdapter.encode(signature));
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}
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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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sa.addElement("LocalVar", attrs);
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}
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@Override
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public final void visitLineNumber(final int line, final 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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sa.addElement("LineNumber", attrs);
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}
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@Override
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public AnnotationVisitor visitAnnotationDefault() {
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return new SAXAnnotationAdapter(sa, "annotationDefault", 0, null, null);
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}
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@Override
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public AnnotationVisitor visitAnnotation(final String desc,
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final boolean visible) {
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return new SAXAnnotationAdapter(sa, "annotation", visible ? 1 : -1,
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null, desc);
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}
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@Override
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public AnnotationVisitor visitParameterAnnotation(final int parameter,
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final String desc, final boolean visible) {
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return new SAXAnnotationAdapter(sa, "parameterAnnotation", visible ? 1
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: -1, parameter, desc);
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}
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@Override
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public void visitEnd() {
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sa.addEnd("method");
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}
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private final String getLabel(final Label label) {
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String name = 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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