plugins/org.eclipse.persistence.asm/src/org/eclipse/persistence/internal/libraries/asm/xml/SAXCodeAdapter.java - eclipselink/eclipselink.runtime - Git at Google

 /***
  * ASM XML Adapter
  * Copyright (c) 2004-2011, 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.eclipse.persistence.internal.libraries.asm.xml;

 import java.util.HashMap;
 import java.util.Map;

 import org.eclipse.persistence.internal.libraries.asm.AnnotationVisitor;
 import org.eclipse.persistence.internal.libraries.asm.Handle;
 import org.eclipse.persistence.internal.libraries.asm.Label;
 import org.eclipse.persistence.internal.libraries.asm.MethodVisitor;
 import org.eclipse.persistence.internal.libraries.asm.Opcodes;
 import org.eclipse.persistence.internal.libraries.asm.Type;
 import org.eclipse.persistence.internal.libraries.asm.TypePath;
 import org.eclipse.persistence.internal.libraries.asm.util.Printer;
 import org.xml.sax.helpers.AttributesImpl;

 /**
  * A {@link MethodVisitor} that generates SAX 2.0 events from the visited
  * method.
  *
  * @see org.eclipse.persistence.internal.libraries.asm.xml.SAXClassAdapter
  * @see org.eclipse.persistence.internal.libraries.asm.xml.Processor
  *
  * @author Eugene Kuleshov
  */
 public final class SAXCodeAdapter extends MethodVisitor {

     static final String[] TYPES = { "top", "int", "float", "double", "long",
             "null", "uninitializedThis" };

     SAXAdapter sa;

     int access;

     private final Map<Label, String> labelNames;

     /**
      * Constructs a new {@link SAXCodeAdapter SAXCodeAdapter} object.
      *
      * @param sa
      *            content handler that will be used to send SAX 2.0 events.
      */
     public SAXCodeAdapter(final SAXAdapter sa, final int access) {
         super(Opcodes.ASM6);
         this.sa = sa;
         this.access = access;
         this.labelNames = new HashMap<Label, String>();
     }

     @Override
     public void visitParameter(String name, int access) {
         AttributesImpl attrs = new AttributesImpl();
         if (name != null) {
             attrs.addAttribute("", "name", "name", "", name);
         }
         StringBuilder sb = new StringBuilder();
         SAXClassAdapter.appendAccess(access, sb);
         attrs.addAttribute("", "access", "access", "", sb.toString());
         sa.addElement("parameter", attrs);
     }

     @Override
     public final void visitCode() {
         if ((access & (Opcodes.ACC_ABSTRACT | Opcodes.ACC_INTERFACE | Opcodes.ACC_NATIVE)) == 0) {
             sa.addStart("code", new AttributesImpl());
         }
     }

     @Override
     public void visitFrame(final int type, final int nLocal,
             final Object[] local, final int nStack, final Object[] stack) {
         AttributesImpl attrs = new AttributesImpl();
         switch (type) {
         case Opcodes.F_NEW:
         case Opcodes.F_FULL:
             if (type == Opcodes.F_NEW) {
                 attrs.addAttribute("", "type", "type", "", "NEW");
             } else {
                 attrs.addAttribute("", "type", "type", "", "FULL");
             }
             sa.addStart("frame", attrs);
             appendFrameTypes(true, nLocal, local);
             appendFrameTypes(false, nStack, stack);
             break;
         case Opcodes.F_APPEND:
             attrs.addAttribute("", "type", "type", "", "APPEND");
             sa.addStart("frame", attrs);
             appendFrameTypes(true, nLocal, local);
             break;
         case Opcodes.F_CHOP:
             attrs.addAttribute("", "type", "type", "", "CHOP");
             attrs.addAttribute("", "count", "count", "",
                     Integer.toString(nLocal));
             sa.addStart("frame", attrs);
             break;
         case Opcodes.F_SAME:
             attrs.addAttribute("", "type", "type", "", "SAME");
             sa.addStart("frame", attrs);
             break;
         case Opcodes.F_SAME1:
             attrs.addAttribute("", "type", "type", "", "SAME1");
             sa.addStart("frame", attrs);
             appendFrameTypes(false, 1, stack);
             break;
         }
         sa.addEnd("frame");
     }

     private void appendFrameTypes(final boolean local, final int n,
             final Object[] types) {
         for (int i = 0; i < n; ++i) {
             Object type = types[i];
             AttributesImpl attrs = new AttributesImpl();
             if (type instanceof String) {
                 attrs.addAttribute("", "type", "type", "", (String) type);
             } else if (type instanceof Integer) {
                 attrs.addAttribute("", "type", "type", "",
                         TYPES[((Integer) type).intValue()]);
             } else {
                 attrs.addAttribute("", "type", "type", "", "uninitialized");
                 attrs.addAttribute("", "label", "label", "",
                         getLabel((Label) type));
             }
             sa.addElement(local ? "local" : "stack", attrs);
         }
     }

     @Override
     public final void visitInsn(final int opcode) {
         sa.addElement(Printer.OPCODES[opcode], new AttributesImpl());
     }

     @Override
     public final void visitIntInsn(final int opcode, final int operand) {
         AttributesImpl attrs = new AttributesImpl();
         attrs.addAttribute("", "value", "value", "", Integer.toString(operand));
         sa.addElement(Printer.OPCODES[opcode], attrs);
     }

     @Override
     public final void visitVarInsn(final int opcode, final int var) {
         AttributesImpl attrs = new AttributesImpl();
         attrs.addAttribute("", "var", "var", "", Integer.toString(var));
         sa.addElement(Printer.OPCODES[opcode], attrs);
     }

     @Override
     public final void visitTypeInsn(final int opcode, final String type) {
         AttributesImpl attrs = new AttributesImpl();
         attrs.addAttribute("", "desc", "desc", "", type);
         sa.addElement(Printer.OPCODES[opcode], attrs);
     }

     @Override
     public final void visitFieldInsn(final int opcode, final String owner,
             final String name, final String desc) {
         AttributesImpl attrs = new AttributesImpl();
         attrs.addAttribute("", "owner", "owner", "", owner);
         attrs.addAttribute("", "name", "name", "", name);
         attrs.addAttribute("", "desc", "desc", "", desc);
         sa.addElement(Printer.OPCODES[opcode], attrs);
     }

     @Override
     public final void visitMethodInsn(final int opcode, final String owner,
             final String name, final String desc, final boolean itf) {
         AttributesImpl attrs = new AttributesImpl();
         attrs.addAttribute("", "owner", "owner", "", owner);
         attrs.addAttribute("", "name", "name", "", name);
         attrs.addAttribute("", "desc", "desc", "", desc);
         attrs.addAttribute("", "itf", "itf", "", itf ? "true" : "false");
         sa.addElement(Printer.OPCODES[opcode], attrs);
     }

     @Override
     public void visitInvokeDynamicInsn(String name, String desc, Handle bsm,
             Object... bsmArgs) {
         AttributesImpl attrs = new AttributesImpl();
         attrs.addAttribute("", "name", "name", "", name);
         attrs.addAttribute("", "desc", "desc", "", desc);
         attrs.addAttribute("", "bsm", "bsm", "",
                 SAXClassAdapter.encode(bsm.toString()));
         sa.addStart("INVOKEDYNAMIC", attrs);
         for (int i = 0; i < bsmArgs.length; i++) {
             sa.addElement("bsmArg", getConstantAttribute(bsmArgs[i]));
         }
         sa.addEnd("INVOKEDYNAMIC");
     }

     @Override
     public final void visitJumpInsn(final int opcode, final Label label) {
         AttributesImpl attrs = new AttributesImpl();
         attrs.addAttribute("", "label", "label", "", getLabel(label));
         sa.addElement(Printer.OPCODES[opcode], attrs);
     }

     @Override
     public final void visitLabel(final Label label) {
         AttributesImpl attrs = new AttributesImpl();
         attrs.addAttribute("", "name", "name", "", getLabel(label));
         sa.addElement("Label", attrs);
     }

     @Override
     public final void visitLdcInsn(final Object cst) {
         sa.addElement(Printer.OPCODES[Opcodes.LDC], getConstantAttribute(cst));
     }

     private static AttributesImpl getConstantAttribute(final Object cst) {
         AttributesImpl attrs = new AttributesImpl();
         attrs.addAttribute("", "cst", "cst", "",
                 SAXClassAdapter.encode(cst.toString()));
         attrs.addAttribute("", "desc", "desc", "",
                 Type.getDescriptor(cst.getClass()));
         return attrs;
     }

     @Override
     public final void visitIincInsn(final int var, final int increment) {
         AttributesImpl attrs = new AttributesImpl();
         attrs.addAttribute("", "var", "var", "", Integer.toString(var));
         attrs.addAttribute("", "inc", "inc", "", Integer.toString(increment));
         sa.addElement(Printer.OPCODES[Opcodes.IINC], attrs);
     }

     @Override
     public final void visitTableSwitchInsn(final int min, final int max,
             final Label dflt, final 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 = Printer.OPCODES[Opcodes.TABLESWITCH];
         sa.addStart(o, attrs);
         for (int i = 0; i < labels.length; i++) {
             AttributesImpl att2 = new AttributesImpl();
             att2.addAttribute("", "name", "name", "", getLabel(labels[i]));
             sa.addElement("label", att2);
         }
         sa.addEnd(o);
     }

     @Override
     public final void visitLookupSwitchInsn(final Label dflt, final int[] keys,
             final Label[] labels) {
         AttributesImpl att = new AttributesImpl();
         att.addAttribute("", "dflt", "dflt", "", getLabel(dflt));
         String o = Printer.OPCODES[Opcodes.LOOKUPSWITCH];
         sa.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]));
             sa.addElement("label", att2);
         }
         sa.addEnd(o);
     }

     @Override
     public final void visitMultiANewArrayInsn(final String desc, final int dims) {
         AttributesImpl attrs = new AttributesImpl();
         attrs.addAttribute("", "desc", "desc", "", desc);
         attrs.addAttribute("", "dims", "dims", "", Integer.toString(dims));
         sa.addElement(Printer.OPCODES[Opcodes.MULTIANEWARRAY], attrs);
     }

     @Override
     public final void visitTryCatchBlock(final Label start, final Label end,
             final Label handler, final 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);
         }
         sa.addElement("TryCatch", attrs);
     }

     @Override
     public final void visitMaxs(final int maxStack, final int maxLocals) {
         AttributesImpl attrs = new AttributesImpl();
         attrs.addAttribute("", "maxStack", "maxStack", "",
                 Integer.toString(maxStack));
         attrs.addAttribute("", "maxLocals", "maxLocals", "",
                 Integer.toString(maxLocals));
         sa.addElement("Max", attrs);

         sa.addEnd("code");
     }

     @Override
     public void visitLocalVariable(final String name, final String desc,
             final String signature, final Label start, final Label end,
             final 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));
         sa.addElement("LocalVar", attrs);
     }

     @Override
     public final void visitLineNumber(final int line, final Label start) {
         AttributesImpl attrs = new AttributesImpl();
         attrs.addAttribute("", "line", "line", "", Integer.toString(line));
         attrs.addAttribute("", "start", "start", "", getLabel(start));
         sa.addElement("LineNumber", attrs);
     }

     @Override
     public AnnotationVisitor visitAnnotationDefault() {
         return new SAXAnnotationAdapter(sa, "annotationDefault", 0, null, null);
     }

     @Override
     public AnnotationVisitor visitAnnotation(final String desc,
             final boolean visible) {
         return new SAXAnnotationAdapter(sa, "annotation", visible ? 1 : -1,
                 null, desc);
     }

     @Override
     public AnnotationVisitor visitTypeAnnotation(int typeRef,
             TypePath typePath, String desc, boolean visible) {
         return new SAXAnnotationAdapter(sa, "typeAnnotation", visible ? 1 : -1,
                 null, desc, typeRef, typePath);
     }

     @Override
     public AnnotationVisitor visitParameterAnnotation(final int parameter,
             final String desc, final boolean visible) {
         return new SAXAnnotationAdapter(sa, "parameterAnnotation", visible ? 1
                 : -1, parameter, desc);
     }

     @Override
     public AnnotationVisitor visitInsnAnnotation(int typeRef,
             TypePath typePath, String desc, boolean visible) {
         return new SAXAnnotationAdapter(sa, "insnAnnotation", visible ? 1 : -1,
                 null, desc, typeRef, typePath);
     }

     @Override
     public AnnotationVisitor visitTryCatchAnnotation(int typeRef,
             TypePath typePath, String desc, boolean visible) {
         return new SAXAnnotationAdapter(sa, "tryCatchAnnotation", visible ? 1
                 : -1, null, desc, typeRef, typePath);
     }

     @Override
     public AnnotationVisitor visitLocalVariableAnnotation(int typeRef,
             TypePath typePath, Label[] start, Label[] end, int[] index,
             String desc, boolean visible) {
         String[] s = new String[start.length];
         String[] e = new String[end.length];
         for (int i = 0; i < s.length; ++i) {
             s[i] = getLabel(start[i]);
         }
         for (int i = 0; i < e.length; ++i) {
             e[i] = getLabel(end[i]);
         }
         return new SAXAnnotationAdapter(sa, "localVariableAnnotation",
                 visible ? 1 : -1, null, desc, typeRef, typePath, s, e, index);
     }

     @Override
     public void visitEnd() {
         sa.addEnd("method");
     }

     private final String getLabel(final Label label) {
         String name = labelNames.get(label);
         if (name == null) {
             name = Integer.toString(labelNames.size());
             labelNames.put(label, name);
         }
         return name;
     }

 }
	/***
	* ASM XML Adapter
	* Copyright (c) 2004-2011, 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.eclipse.persistence.internal.libraries.asm.xml;

	import java.util.HashMap;
	import java.util.Map;

	import org.eclipse.persistence.internal.libraries.asm.AnnotationVisitor;
	import org.eclipse.persistence.internal.libraries.asm.Handle;
	import org.eclipse.persistence.internal.libraries.asm.Label;
	import org.eclipse.persistence.internal.libraries.asm.MethodVisitor;
	import org.eclipse.persistence.internal.libraries.asm.Opcodes;
	import org.eclipse.persistence.internal.libraries.asm.Type;
	import org.eclipse.persistence.internal.libraries.asm.TypePath;
	import org.eclipse.persistence.internal.libraries.asm.util.Printer;
	import org.xml.sax.helpers.AttributesImpl;

	/**
	* A {@link MethodVisitor} that generates SAX 2.0 events from the visited
	* method.
	*
	* @see org.eclipse.persistence.internal.libraries.asm.xml.SAXClassAdapter
	* @see org.eclipse.persistence.internal.libraries.asm.xml.Processor
	*
	* @author Eugene Kuleshov
	*/
	public final class SAXCodeAdapter extends MethodVisitor {

	static final String[] TYPES = { "top", "int", "float", "double", "long",
	"null", "uninitializedThis" };

	SAXAdapter sa;

	int access;

	private final Map<Label, String> labelNames;

	/**
	* Constructs a new {@link SAXCodeAdapter SAXCodeAdapter} object.
	*
	* @param sa
	* content handler that will be used to send SAX 2.0 events.
	*/
	public SAXCodeAdapter(final SAXAdapter sa, final int access) {
	super(Opcodes.ASM6);
	this.sa = sa;
	this.access = access;
	this.labelNames = new HashMap<Label, String>();
	}

	@Override
	public void visitParameter(String name, int access) {
	AttributesImpl attrs = new AttributesImpl();
	if (name != null) {
	attrs.addAttribute("", "name", "name", "", name);
	}
	StringBuilder sb = new StringBuilder();
	SAXClassAdapter.appendAccess(access, sb);
	attrs.addAttribute("", "access", "access", "", sb.toString());
	sa.addElement("parameter", attrs);
	}

	@Override
	public final void visitCode() {
	if ((access & (Opcodes.ACC_ABSTRACT \| Opcodes.ACC_INTERFACE \| Opcodes.ACC_NATIVE)) == 0) {
	sa.addStart("code", new AttributesImpl());
	}
	}

	@Override
	public void visitFrame(final int type, final int nLocal,
	final Object[] local, final int nStack, final Object[] stack) {
	AttributesImpl attrs = new AttributesImpl();
	switch (type) {
	case Opcodes.F_NEW:
	case Opcodes.F_FULL:
	if (type == Opcodes.F_NEW) {
	attrs.addAttribute("", "type", "type", "", "NEW");
	} else {
	attrs.addAttribute("", "type", "type", "", "FULL");
	}
	sa.addStart("frame", attrs);
	appendFrameTypes(true, nLocal, local);
	appendFrameTypes(false, nStack, stack);
	break;
	case Opcodes.F_APPEND:
	attrs.addAttribute("", "type", "type", "", "APPEND");
	sa.addStart("frame", attrs);
	appendFrameTypes(true, nLocal, local);
	break;
	case Opcodes.F_CHOP:
	attrs.addAttribute("", "type", "type", "", "CHOP");
	attrs.addAttribute("", "count", "count", "",
	Integer.toString(nLocal));
	sa.addStart("frame", attrs);
	break;
	case Opcodes.F_SAME:
	attrs.addAttribute("", "type", "type", "", "SAME");
	sa.addStart("frame", attrs);
	break;
	case Opcodes.F_SAME1:
	attrs.addAttribute("", "type", "type", "", "SAME1");
	sa.addStart("frame", attrs);
	appendFrameTypes(false, 1, stack);
	break;
	}
	sa.addEnd("frame");
	}

	private void appendFrameTypes(final boolean local, final int n,
	final Object[] types) {
	for (int i = 0; i < n; ++i) {
	Object type = types[i];
	AttributesImpl attrs = new AttributesImpl();
	if (type instanceof String) {
	attrs.addAttribute("", "type", "type", "", (String) type);
	} else if (type instanceof Integer) {
	attrs.addAttribute("", "type", "type", "",
	TYPES[((Integer) type).intValue()]);
	} else {
	attrs.addAttribute("", "type", "type", "", "uninitialized");
	attrs.addAttribute("", "label", "label", "",
	getLabel((Label) type));
	}
	sa.addElement(local ? "local" : "stack", attrs);
	}
	}

	@Override
	public final void visitInsn(final int opcode) {
	sa.addElement(Printer.OPCODES[opcode], new AttributesImpl());
	}

	@Override
	public final void visitIntInsn(final int opcode, final int operand) {
	AttributesImpl attrs = new AttributesImpl();
	attrs.addAttribute("", "value", "value", "", Integer.toString(operand));
	sa.addElement(Printer.OPCODES[opcode], attrs);
	}

	@Override
	public final void visitVarInsn(final int opcode, final int var) {
	AttributesImpl attrs = new AttributesImpl();
	attrs.addAttribute("", "var", "var", "", Integer.toString(var));
	sa.addElement(Printer.OPCODES[opcode], attrs);
	}

	@Override
	public final void visitTypeInsn(final int opcode, final String type) {
	AttributesImpl attrs = new AttributesImpl();
	attrs.addAttribute("", "desc", "desc", "", type);
	sa.addElement(Printer.OPCODES[opcode], attrs);
	}

	@Override
	public final void visitFieldInsn(final int opcode, final String owner,
	final String name, final String desc) {
	AttributesImpl attrs = new AttributesImpl();
	attrs.addAttribute("", "owner", "owner", "", owner);
	attrs.addAttribute("", "name", "name", "", name);
	attrs.addAttribute("", "desc", "desc", "", desc);
	sa.addElement(Printer.OPCODES[opcode], attrs);
	}

	@Override
	public final void visitMethodInsn(final int opcode, final String owner,
	final String name, final String desc, final boolean itf) {
	AttributesImpl attrs = new AttributesImpl();
	attrs.addAttribute("", "owner", "owner", "", owner);
	attrs.addAttribute("", "name", "name", "", name);
	attrs.addAttribute("", "desc", "desc", "", desc);
	attrs.addAttribute("", "itf", "itf", "", itf ? "true" : "false");
	sa.addElement(Printer.OPCODES[opcode], attrs);
	}

	@Override
	public void visitInvokeDynamicInsn(String name, String desc, Handle bsm,
	Object... bsmArgs) {
	AttributesImpl attrs = new AttributesImpl();
	attrs.addAttribute("", "name", "name", "", name);
	attrs.addAttribute("", "desc", "desc", "", desc);
	attrs.addAttribute("", "bsm", "bsm", "",
	SAXClassAdapter.encode(bsm.toString()));
	sa.addStart("INVOKEDYNAMIC", attrs);
	for (int i = 0; i < bsmArgs.length; i++) {
	sa.addElement("bsmArg", getConstantAttribute(bsmArgs[i]));
	}
	sa.addEnd("INVOKEDYNAMIC");
	}

	@Override
	public final void visitJumpInsn(final int opcode, final Label label) {
	AttributesImpl attrs = new AttributesImpl();
	attrs.addAttribute("", "label", "label", "", getLabel(label));
	sa.addElement(Printer.OPCODES[opcode], attrs);
	}

	@Override
	public final void visitLabel(final Label label) {
	AttributesImpl attrs = new AttributesImpl();
	attrs.addAttribute("", "name", "name", "", getLabel(label));
	sa.addElement("Label", attrs);
	}

	@Override
	public final void visitLdcInsn(final Object cst) {
	sa.addElement(Printer.OPCODES[Opcodes.LDC], getConstantAttribute(cst));
	}

	private static AttributesImpl getConstantAttribute(final Object cst) {
	AttributesImpl attrs = new AttributesImpl();
	attrs.addAttribute("", "cst", "cst", "",
	SAXClassAdapter.encode(cst.toString()));
	attrs.addAttribute("", "desc", "desc", "",
	Type.getDescriptor(cst.getClass()));
	return attrs;
	}

	@Override
	public final void visitIincInsn(final int var, final int increment) {
	AttributesImpl attrs = new AttributesImpl();
	attrs.addAttribute("", "var", "var", "", Integer.toString(var));
	attrs.addAttribute("", "inc", "inc", "", Integer.toString(increment));
	sa.addElement(Printer.OPCODES[Opcodes.IINC], attrs);
	}

	@Override
	public final void visitTableSwitchInsn(final int min, final int max,
	final Label dflt, final 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 = Printer.OPCODES[Opcodes.TABLESWITCH];
	sa.addStart(o, attrs);
	for (int i = 0; i < labels.length; i++) {
	AttributesImpl att2 = new AttributesImpl();
	att2.addAttribute("", "name", "name", "", getLabel(labels[i]));
	sa.addElement("label", att2);
	}
	sa.addEnd(o);
	}

	@Override
	public final void visitLookupSwitchInsn(final Label dflt, final int[] keys,
	final Label[] labels) {
	AttributesImpl att = new AttributesImpl();
	att.addAttribute("", "dflt", "dflt", "", getLabel(dflt));
	String o = Printer.OPCODES[Opcodes.LOOKUPSWITCH];
	sa.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]));
	sa.addElement("label", att2);
	}
	sa.addEnd(o);
	}

	@Override
	public final void visitMultiANewArrayInsn(final String desc, final int dims) {
	AttributesImpl attrs = new AttributesImpl();
	attrs.addAttribute("", "desc", "desc", "", desc);
	attrs.addAttribute("", "dims", "dims", "", Integer.toString(dims));
	sa.addElement(Printer.OPCODES[Opcodes.MULTIANEWARRAY], attrs);
	}

	@Override
	public final void visitTryCatchBlock(final Label start, final Label end,
	final Label handler, final 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);
	}
	sa.addElement("TryCatch", attrs);
	}

	@Override
	public final void visitMaxs(final int maxStack, final int maxLocals) {
	AttributesImpl attrs = new AttributesImpl();
	attrs.addAttribute("", "maxStack", "maxStack", "",
	Integer.toString(maxStack));
	attrs.addAttribute("", "maxLocals", "maxLocals", "",
	Integer.toString(maxLocals));
	sa.addElement("Max", attrs);

	sa.addEnd("code");
	}

	@Override
	public void visitLocalVariable(final String name, final String desc,
	final String signature, final Label start, final Label end,
	final 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));
	sa.addElement("LocalVar", attrs);
	}

	@Override
	public final void visitLineNumber(final int line, final Label start) {
	AttributesImpl attrs = new AttributesImpl();
	attrs.addAttribute("", "line", "line", "", Integer.toString(line));
	attrs.addAttribute("", "start", "start", "", getLabel(start));
	sa.addElement("LineNumber", attrs);
	}

	@Override
	public AnnotationVisitor visitAnnotationDefault() {
	return new SAXAnnotationAdapter(sa, "annotationDefault", 0, null, null);
	}

	@Override
	public AnnotationVisitor visitAnnotation(final String desc,
	final boolean visible) {
	return new SAXAnnotationAdapter(sa, "annotation", visible ? 1 : -1,
	null, desc);
	}

	@Override
	public AnnotationVisitor visitTypeAnnotation(int typeRef,
	TypePath typePath, String desc, boolean visible) {
	return new SAXAnnotationAdapter(sa, "typeAnnotation", visible ? 1 : -1,
	null, desc, typeRef, typePath);
	}

	@Override
	public AnnotationVisitor visitParameterAnnotation(final int parameter,
	final String desc, final boolean visible) {
	return new SAXAnnotationAdapter(sa, "parameterAnnotation", visible ? 1
	: -1, parameter, desc);
	}

	@Override
	public AnnotationVisitor visitInsnAnnotation(int typeRef,
	TypePath typePath, String desc, boolean visible) {
	return new SAXAnnotationAdapter(sa, "insnAnnotation", visible ? 1 : -1,
	null, desc, typeRef, typePath);
	}

	@Override
	public AnnotationVisitor visitTryCatchAnnotation(int typeRef,
	TypePath typePath, String desc, boolean visible) {
	return new SAXAnnotationAdapter(sa, "tryCatchAnnotation", visible ? 1
	: -1, null, desc, typeRef, typePath);
	}

	@Override
	public AnnotationVisitor visitLocalVariableAnnotation(int typeRef,
	TypePath typePath, Label[] start, Label[] end, int[] index,
	String desc, boolean visible) {
	String[] s = new String[start.length];
	String[] e = new String[end.length];
	for (int i = 0; i < s.length; ++i) {
	s[i] = getLabel(start[i]);
	}
	for (int i = 0; i < e.length; ++i) {
	e[i] = getLabel(end[i]);
	}
	return new SAXAnnotationAdapter(sa, "localVariableAnnotation",
	visible ? 1 : -1, null, desc, typeRef, typePath, s, e, index);
	}

	@Override
	public void visitEnd() {
	sa.addEnd("method");
	}

	private final String getLabel(final Label label) {
	String name = labelNames.get(label);
	if (name == null) {
	name = Integer.toString(labelNames.size());
	labelNames.put(label, name);
	}
	return name;
	}

	}