/* Copyright (C) 2004-2007 Sami Koivu
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
package net.sf.rej.java.instruction;
import net.sf.rej.util.ByteSerializer;
import net.sf.rej.util.ByteToolkit;
/**
* Increment local variable by constant.
*
* @author Sami Koivu
*/
public class _iinc extends Instruction implements Widenable {
public static final int OPCODE = 0x84;
public static final String MNEMONIC = "iinc";
private static final int SIZE = 3;
private static final int WIDE_SIZE = 6;
private int index = 0;
private int increment = 0;
public _iinc() {
}
public _iinc(int localVariable, int increment) {
this.index = localVariable;
this.increment = increment;
}
@Override
public int getOpcode() {
return OPCODE;
}
@Override
public String getMnemonic() {
return MNEMONIC;
}
@Override
public int getSize() {
return SIZE;
}
@Override
public void execute(ExecutionContext ec) {
}
@Override
public void setData(byte[] data, DecompilationContext dc) {
this.index = (int) ByteToolkit.getLong(data, 1, 1, true);
this.increment = (int) ByteToolkit.getLong(data, 2, 1, true);
}
@Override
public byte[] getData(DecompilationContext dc) {
ByteSerializer ser = new ByteSerializer(true);
ser.addByte(OPCODE);
ser.addByte(this.index);
ser.addByte(this.increment);
return ser.getBytes();
}
public int getWideSize(DecompilationContext dc) {
return WIDE_SIZE;
}
public byte[] getWideData(DecompilationContext dc) {
ByteSerializer ser = new ByteSerializer(true);
ser.addByte(_wide.OPCODE);
ser.addByte(OPCODE);
ser.addShort(this.index);
ser.addShort(this.increment);
return ser.getBytes();
}
public void setWideData(byte[] data, DecompilationContext dc) {
this.index = (int) ByteToolkit.getLong(data, 2, 2, true);
this.increment = (int) ByteToolkit.getLong(data, 4, 2, true);
}
@Override
public Parameters getParameters() {
Parameters params = getParameterTypes();
params.addValue(this.index);
params.addValue(this.increment);
return params;
}
public Parameters getParametersWide() {
Parameters params = getParameterTypesWide();
params.addValue(this.index);
params.addValue(this.increment);
return params;
}
@Override
public Parameters getParameterTypes() {
return new Parameters(new ParameterType[] { ParameterType.TYPE_LOCAL_VARIABLE,
ParameterType.TYPE_CONSTANT });
}
public Parameters getParameterTypesWide() {
return new Parameters(new ParameterType[] { ParameterType.TYPE_LOCAL_VARIABLE_WIDE,
ParameterType.TYPE_CONSTANT_WIDE });
}
@Override
public void setParameters(Parameters params) {
this.index = params.getInt(0);
this.increment = params.getInt(1);
}
public void setParametersWide(Parameters params) {
this.index = params.getInt(0);
this.increment = params.getInt(1);
}
}