/*
* Copyright (C) 2011 Stephane Godbillon
*
* This file is part of BytecodeParser. See the README file in the root
* directory of this project.
*
* BytecodeParser 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 3 of the License, or
* (at your option) any later version.
* BytecodeParser 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 BytecodeParser. If not, see <http://www.gnu.org/licenses/>.
*/
package bytecodeparser.analysis.opcodes;
import static bytecodeparser.analysis.Opcodes.OpParameterType.U2;
import bytecodeparser.Context;
import bytecodeparser.analysis.decoders.DecodedFieldOp;
/**
* An opcode concerning a field (read, write).
* @author Stephane Godbillon
*
*/
public class FieldOpcode extends Op {
private final DecodedFieldOp decodedOp;
public FieldOpcode(int code) {
this(code, null);
}
private FieldOpcode(int code, DecodedFieldOp decodedOp) {
super(code, U2);
this.decodedOp = decodedOp;
}
@Override
public FieldOpcode init(Context context, int index) {
return new FieldOpcode(code, decode(context, index));
}
@Override
public DecodedFieldOp decode(Context context, int index) {
if(decodedOp != null)
return decodedOp;
try {
DecodedFieldOp decodedOp = new DecodedFieldOp(this, context, index);
return decodedOp;
} catch (Exception e) {
throw new RuntimeException(e);
}
}
}