/*

  * Cobertura - http://cobertura.sourceforge.net/

  *

  * Copyright (C) 2006 Jiri Mares

  *

  * Cobertura is free software; you can redistribute it and/or modify

  * it under the terms of the GNU General Public License as published

  * by the Free Software Foundation; either version 2 of the License,

  * or (at your option) any later version.

  *

  * Cobertura is distributed in the hope that it will be useful, but

  * WITHOUT ANY WARRANTY; without even the implied warranty of

  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

  * General Public License for more details.

  *

  * You should have received a copy of the GNU General Public License

  * along with Cobertura; if not, write to the Free Software

  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307

  * USA

  */

 package net.sourceforge.cobertura.instrument;

 import org.objectweb.asm.Label;

 import org.objectweb.asm.MethodAdapter;

 import org.objectweb.asm.MethodVisitor;

 import org.objectweb.asm.Opcodes;

 import org.objectweb.asm.Type;

 /**

  * Expects that the visitMaxs is calculated for me .... 

  */

 public class NewLocalVariableMethodAdapter extends MethodAdapter implements Opcodes

 {

         protected int firstStackVariable;

         protected int addedStackWords;

         public NewLocalVariableMethodAdapter(MethodVisitor mv, int access, String desc, int addedStackWords)

         {

                 super(mv);

                 Type[] args = Type.getArgumentTypes(desc);

                 firstStackVariable = ((ACC_STATIC & access) != 0) ? 0 : 1;

                 for (int i = 0; i < args.length; i++) {

                         firstStackVariable += args[i].getSize();

                 }

                 this.addedStackWords = addedStackWords;

         }

         public void visitVarInsn(int opcode, int var) 

         {

                 mv.visitVarInsn(opcode, (var >= firstStackVariable) ? var + addedStackWords : var);

         }

         public void visitIincInsn(int var, int increment) {

                 mv.visitIincInsn((var >= firstStackVariable) ? var + addedStackWords : var, increment);

         }

         public void visitLocalVariable(String name, String desc, String signature, Label start, Label end, int index)

         {

                 mv.visitLocalVariable(name, desc, signature, start, end, (index >= firstStackVariable) ? index + addedStackWords : index);

         }

         public int getAddedStackWords()

         {

                 return addedStackWords;

         }

         public int getFirstStackVariable()

         {

                 return firstStackVariable;

         }

 }