gcc-4.3.1/libjava/classpath/tools/external/asm/org/objectweb/asm/util/ASMifierMethodVisitor.java - toolchain/gcc - Git at Google

 /***
  * ASM: a very small and fast Java bytecode manipulation framework
  * Copyright (c) 2000-2005 INRIA, France Telecom
  * 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.util;

 import org.objectweb.asm.AnnotationVisitor;
 import org.objectweb.asm.MethodVisitor;
 import org.objectweb.asm.Label;
 import org.objectweb.asm.Opcodes;

 import java.util.HashMap;

 /**
  * A {@link MethodVisitor} that prints the ASM code that generates the methods
  * it visits.
  *
  * @author Eric Bruneton
  * @author Eugene Kuleshov
  */
 public class ASMifierMethodVisitor extends ASMifierAbstractVisitor implements
         MethodVisitor
 {

     /**
      * Constructs a new {@link ASMifierMethodVisitor} object.
      */
     public ASMifierMethodVisitor() {
         super("mv");
         this.labelNames = new HashMap();
     }

     public AnnotationVisitor visitAnnotationDefault() {
         buf.setLength(0);
         buf.append("{\n").append("av0 = mv.visitAnnotationDefault();\n");
         text.add(buf.toString());
         ASMifierAnnotationVisitor av = new ASMifierAnnotationVisitor(0);
         text.add(av.getText());
         text.add("}\n");
         return av;
     }

     public AnnotationVisitor visitParameterAnnotation(
         final int parameter,
         final String desc,
         final boolean visible)
     {
         buf.setLength(0);
         buf.append("{\n")
                 .append("av0 = mv.visitParameterAnnotation(")
                 .append(parameter)
                 .append(", ");
         appendConstant(desc);
         buf.append(", ").append(visible).append(");\n");
         text.add(buf.toString());
         ASMifierAnnotationVisitor av = new ASMifierAnnotationVisitor(0);
         text.add(av.getText());
         text.add("}\n");
         return av;
     }

     public void visitCode() {
         text.add("mv.visitCode();\n");
     }

     public void visitInsn(final int opcode) {
         buf.setLength(0);
         buf.append("mv.visitInsn(").append(OPCODES[opcode]).append(");\n");
         text.add(buf.toString());
     }

     public void visitIntInsn(final int opcode, final int operand) {
         buf.setLength(0);
         buf.append("mv.visitIntInsn(")
                 .append(OPCODES[opcode])
                 .append(", ")
                 .append(opcode == Opcodes.NEWARRAY
                         ? TYPES[operand]
                         : Integer.toString(operand))
                 .append(");\n");
         text.add(buf.toString());
     }

     public void visitVarInsn(final int opcode, final int var) {
         buf.setLength(0);
         buf.append("mv.visitVarInsn(")
                 .append(OPCODES[opcode])
                 .append(", ")
                 .append(var)
                 .append(");\n");
         text.add(buf.toString());
     }

     public void visitTypeInsn(final int opcode, final String desc) {
         buf.setLength(0);
         buf.append("mv.visitTypeInsn(").append(OPCODES[opcode]).append(", ");
         appendConstant(desc);
         buf.append(");\n");
         text.add(buf.toString());
     }

     public void visitFieldInsn(
         final int opcode,
         final String owner,
         final String name,
         final String desc)
     {
         buf.setLength(0);
         buf.append("mv.visitFieldInsn(").append(OPCODES[opcode]).append(", ");
         appendConstant(owner);
         buf.append(", ");
         appendConstant(name);
         buf.append(", ");
         appendConstant(desc);
         buf.append(");\n");
         text.add(buf.toString());
     }

     public void visitMethodInsn(
         final int opcode,
         final String owner,
         final String name,
         final String desc)
     {
         buf.setLength(0);
         buf.append("mv.visitMethodInsn(").append(OPCODES[opcode]).append(", ");
         appendConstant(owner);
         buf.append(", ");
         appendConstant(name);
         buf.append(", ");
         appendConstant(desc);
         buf.append(");\n");
         text.add(buf.toString());
     }

     public void visitJumpInsn(final int opcode, final Label label) {
         buf.setLength(0);
         declareLabel(label);
         buf.append("mv.visitJumpInsn(").append(OPCODES[opcode]).append(", ");
         appendLabel(label);
         buf.append(");\n");
         text.add(buf.toString());
     }

     public void visitLabel(final Label label) {
         buf.setLength(0);
         declareLabel(label);
         buf.append("mv.visitLabel(");
         appendLabel(label);
         buf.append(");\n");
         text.add(buf.toString());
     }

     public void visitLdcInsn(final Object cst) {
         buf.setLength(0);
         buf.append("mv.visitLdcInsn(");
         appendConstant(cst);
         buf.append(");\n");
         text.add(buf.toString());
     }

     public void visitIincInsn(final int var, final int increment) {
         buf.setLength(0);
         buf.append("mv.visitIincInsn(")
                 .append(var)
                 .append(", ")
                 .append(increment)
                 .append(");\n");
         text.add(buf.toString());
     }

     public void visitTableSwitchInsn(
         final int min,
         final int max,
         final Label dflt,
         final Label labels[])
     {
         buf.setLength(0);
         for (int i = 0; i < labels.length; ++i) {
             declareLabel(labels[i]);
         }
         declareLabel(dflt);

         buf.append("mv.visitTableSwitchInsn(")
                 .append(min)
                 .append(", ")
                 .append(max)
                 .append(", ");
         appendLabel(dflt);
         buf.append(", new Label[] {");
         for (int i = 0; i < labels.length; ++i) {
             buf.append(i == 0 ? " " : ", ");
             appendLabel(labels[i]);
         }
         buf.append(" });\n");
         text.add(buf.toString());
     }

     public void visitLookupSwitchInsn(
         final Label dflt,
         final int keys[],
         final Label labels[])
     {
         buf.setLength(0);
         for (int i = 0; i < labels.length; ++i) {
             declareLabel(labels[i]);
         }
         declareLabel(dflt);

         buf.append("mv.visitLookupSwitchInsn(");
         appendLabel(dflt);
         buf.append(", new int[] {");
         for (int i = 0; i < keys.length; ++i) {
             buf.append(i == 0 ? " " : ", ").append(keys[i]);
         }
         buf.append(" }, new Label[] {");
         for (int i = 0; i < labels.length; ++i) {
             buf.append(i == 0 ? " " : ", ");
             appendLabel(labels[i]);
         }
         buf.append(" });\n");
         text.add(buf.toString());
     }

     public void visitMultiANewArrayInsn(final String desc, final int dims) {
         buf.setLength(0);
         buf.append("mv.visitMultiANewArrayInsn(");
         appendConstant(desc);
         buf.append(", ").append(dims).append(");\n");
         text.add(buf.toString());
     }

     public void visitTryCatchBlock(
         final Label start,
         final Label end,
         final Label handler,
         final String type)
     {
         buf.setLength(0);
         declareLabel(start);
         declareLabel(end);
         declareLabel(handler);
         buf.append("mv.visitTryCatchBlock(");
         appendLabel(start);
         buf.append(", ");
         appendLabel(end);
         buf.append(", ");
         appendLabel(handler);
         buf.append(", ");
         appendConstant(type);
         buf.append(");\n");
         text.add(buf.toString());
     }

     public void visitLocalVariable(
         final String name,
         final String desc,
         final String signature,
         final Label start,
         final Label end,
         final int index)
     {
         buf.setLength(0);
         buf.append("mv.visitLocalVariable(");
         appendConstant(name);
         buf.append(", ");
         appendConstant(desc);
         buf.append(", ");
         appendConstant(signature);
         buf.append(", ");
         appendLabel(start);
         buf.append(", ");
         appendLabel(end);
         buf.append(", ").append(index).append(");\n");
         text.add(buf.toString());
     }

     public void visitLineNumber(final int line, final Label start) {
         buf.setLength(0);
         buf.append("mv.visitLineNumber(").append(line).append(", ");
         appendLabel(start);
         buf.append(");\n");
         text.add(buf.toString());
     }

     public void visitMaxs(final int maxStack, final int maxLocals) {
         buf.setLength(0);
         buf.append("mv.visitMaxs(")
                 .append(maxStack)
                 .append(", ")
                 .append(maxLocals)
                 .append(");\n");
         text.add(buf.toString());
     }

     /**
      * Appends a declaration of the given label to {@link #buf buf}. This
      * declaration is of the form "Label lXXX = new Label();". Does nothing if
      * the given label has already been declared.
      *
      * @param l a label.
      */
     private void declareLabel(final Label l) {
         String name = (String) labelNames.get(l);
         if (name == null) {
             name = "l" + labelNames.size();
             labelNames.put(l, name);
             buf.append("Label ").append(name).append(" = new Label();\n");
         }
     }

     /**
      * Appends the name of the given label to {@link #buf buf}. The given label
      * <i>must</i> already have a name. One way to ensure this is to always
      * call {@link #declareLabel declared} before calling this method.
      *
      * @param l a label.
      */
     private void appendLabel(final Label l) {
         buf.append((String) labelNames.get(l));
     }
 }
	/***
	* ASM: a very small and fast Java bytecode manipulation framework
	* Copyright (c) 2000-2005 INRIA, France Telecom
	* 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.util;

	import org.objectweb.asm.AnnotationVisitor;
	import org.objectweb.asm.MethodVisitor;
	import org.objectweb.asm.Label;
	import org.objectweb.asm.Opcodes;

	import java.util.HashMap;

	/**
	* A {@link MethodVisitor} that prints the ASM code that generates the methods
	* it visits.
	*
	* @author Eric Bruneton
	* @author Eugene Kuleshov
	*/
	public class ASMifierMethodVisitor extends ASMifierAbstractVisitor implements
	MethodVisitor
	{

	/**
	* Constructs a new {@link ASMifierMethodVisitor} object.
	*/
	public ASMifierMethodVisitor() {
	super("mv");
	this.labelNames = new HashMap();
	}

	public AnnotationVisitor visitAnnotationDefault() {
	buf.setLength(0);
	buf.append("{\n").append("av0 = mv.visitAnnotationDefault();\n");
	text.add(buf.toString());
	ASMifierAnnotationVisitor av = new ASMifierAnnotationVisitor(0);
	text.add(av.getText());
	text.add("}\n");
	return av;
	}

	public AnnotationVisitor visitParameterAnnotation(
	final int parameter,
	final String desc,
	final boolean visible)
	{
	buf.setLength(0);
	buf.append("{\n")
	.append("av0 = mv.visitParameterAnnotation(")
	.append(parameter)
	.append(", ");
	appendConstant(desc);
	buf.append(", ").append(visible).append(");\n");
	text.add(buf.toString());
	ASMifierAnnotationVisitor av = new ASMifierAnnotationVisitor(0);
	text.add(av.getText());
	text.add("}\n");
	return av;
	}

	public void visitCode() {
	text.add("mv.visitCode();\n");
	}

	public void visitInsn(final int opcode) {
	buf.setLength(0);
	buf.append("mv.visitInsn(").append(OPCODES[opcode]).append(");\n");
	text.add(buf.toString());
	}

	public void visitIntInsn(final int opcode, final int operand) {
	buf.setLength(0);
	buf.append("mv.visitIntInsn(")
	.append(OPCODES[opcode])
	.append(", ")
	.append(opcode == Opcodes.NEWARRAY
	? TYPES[operand]
	: Integer.toString(operand))
	.append(");\n");
	text.add(buf.toString());
	}

	public void visitVarInsn(final int opcode, final int var) {
	buf.setLength(0);
	buf.append("mv.visitVarInsn(")
	.append(OPCODES[opcode])
	.append(", ")
	.append(var)
	.append(");\n");
	text.add(buf.toString());
	}

	public void visitTypeInsn(final int opcode, final String desc) {
	buf.setLength(0);
	buf.append("mv.visitTypeInsn(").append(OPCODES[opcode]).append(", ");
	appendConstant(desc);
	buf.append(");\n");
	text.add(buf.toString());
	}

	public void visitFieldInsn(
	final int opcode,
	final String owner,
	final String name,
	final String desc)
	{
	buf.setLength(0);
	buf.append("mv.visitFieldInsn(").append(OPCODES[opcode]).append(", ");
	appendConstant(owner);
	buf.append(", ");
	appendConstant(name);
	buf.append(", ");
	appendConstant(desc);
	buf.append(");\n");
	text.add(buf.toString());
	}

	public void visitMethodInsn(
	final int opcode,
	final String owner,
	final String name,
	final String desc)
	{
	buf.setLength(0);
	buf.append("mv.visitMethodInsn(").append(OPCODES[opcode]).append(", ");
	appendConstant(owner);
	buf.append(", ");
	appendConstant(name);
	buf.append(", ");
	appendConstant(desc);
	buf.append(");\n");
	text.add(buf.toString());
	}

	public void visitJumpInsn(final int opcode, final Label label) {
	buf.setLength(0);
	declareLabel(label);
	buf.append("mv.visitJumpInsn(").append(OPCODES[opcode]).append(", ");
	appendLabel(label);
	buf.append(");\n");
	text.add(buf.toString());
	}

	public void visitLabel(final Label label) {
	buf.setLength(0);
	declareLabel(label);
	buf.append("mv.visitLabel(");
	appendLabel(label);
	buf.append(");\n");
	text.add(buf.toString());
	}

	public void visitLdcInsn(final Object cst) {
	buf.setLength(0);
	buf.append("mv.visitLdcInsn(");
	appendConstant(cst);
	buf.append(");\n");
	text.add(buf.toString());
	}

	public void visitIincInsn(final int var, final int increment) {
	buf.setLength(0);
	buf.append("mv.visitIincInsn(")
	.append(var)
	.append(", ")
	.append(increment)
	.append(");\n");
	text.add(buf.toString());
	}

	public void visitTableSwitchInsn(
	final int min,
	final int max,
	final Label dflt,
	final Label labels[])
	{
	buf.setLength(0);
	for (int i = 0; i < labels.length; ++i) {
	declareLabel(labels[i]);
	}
	declareLabel(dflt);

	buf.append("mv.visitTableSwitchInsn(")
	.append(min)
	.append(", ")
	.append(max)
	.append(", ");
	appendLabel(dflt);
	buf.append(", new Label[] {");
	for (int i = 0; i < labels.length; ++i) {
	buf.append(i == 0 ? " " : ", ");
	appendLabel(labels[i]);
	}
	buf.append(" });\n");
	text.add(buf.toString());
	}

	public void visitLookupSwitchInsn(
	final Label dflt,
	final int keys[],
	final Label labels[])
	{
	buf.setLength(0);
	for (int i = 0; i < labels.length; ++i) {
	declareLabel(labels[i]);
	}
	declareLabel(dflt);

	buf.append("mv.visitLookupSwitchInsn(");
	appendLabel(dflt);
	buf.append(", new int[] {");
	for (int i = 0; i < keys.length; ++i) {
	buf.append(i == 0 ? " " : ", ").append(keys[i]);
	}
	buf.append(" }, new Label[] {");
	for (int i = 0; i < labels.length; ++i) {
	buf.append(i == 0 ? " " : ", ");
	appendLabel(labels[i]);
	}
	buf.append(" });\n");
	text.add(buf.toString());
	}

	public void visitMultiANewArrayInsn(final String desc, final int dims) {
	buf.setLength(0);
	buf.append("mv.visitMultiANewArrayInsn(");
	appendConstant(desc);
	buf.append(", ").append(dims).append(");\n");
	text.add(buf.toString());
	}

	public void visitTryCatchBlock(
	final Label start,
	final Label end,
	final Label handler,
	final String type)
	{
	buf.setLength(0);
	declareLabel(start);
	declareLabel(end);
	declareLabel(handler);
	buf.append("mv.visitTryCatchBlock(");
	appendLabel(start);
	buf.append(", ");
	appendLabel(end);
	buf.append(", ");
	appendLabel(handler);
	buf.append(", ");
	appendConstant(type);
	buf.append(");\n");
	text.add(buf.toString());
	}

	public void visitLocalVariable(
	final String name,
	final String desc,
	final String signature,
	final Label start,
	final Label end,
	final int index)
	{
	buf.setLength(0);
	buf.append("mv.visitLocalVariable(");
	appendConstant(name);
	buf.append(", ");
	appendConstant(desc);
	buf.append(", ");
	appendConstant(signature);
	buf.append(", ");
	appendLabel(start);
	buf.append(", ");
	appendLabel(end);
	buf.append(", ").append(index).append(");\n");
	text.add(buf.toString());
	}

	public void visitLineNumber(final int line, final Label start) {
	buf.setLength(0);
	buf.append("mv.visitLineNumber(").append(line).append(", ");
	appendLabel(start);
	buf.append(");\n");
	text.add(buf.toString());
	}

	public void visitMaxs(final int maxStack, final int maxLocals) {
	buf.setLength(0);
	buf.append("mv.visitMaxs(")
	.append(maxStack)
	.append(", ")
	.append(maxLocals)
	.append(");\n");
	text.add(buf.toString());
	}

	/**
	* Appends a declaration of the given label to {@link #buf buf}. This
	* declaration is of the form "Label lXXX = new Label();". Does nothing if
	* the given label has already been declared.
	*
	* @param l a label.
	*/
	private void declareLabel(final Label l) {
	String name = (String) labelNames.get(l);
	if (name == null) {
	name = "l" + labelNames.size();
	labelNames.put(l, name);
	buf.append("Label ").append(name).append(" = new Label();\n");
	}
	}

	/**
	* Appends the name of the given label to {@link #buf buf}. The given label
	* <i>must</i> already have a name. One way to ensure this is to always
	* call {@link #declareLabel declared} before calling this method.
	*
	* @param l a label.
	*/
	private void appendLabel(final Label l) {
	buf.append((String) labelNames.get(l));
	}
	}