/*
* 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 bytecodeparser.Context;
import bytecodeparser.analysis.Opcodes.OpParameterType;
import bytecodeparser.analysis.decoders.DecodedBasicOp;
import bytecodeparser.analysis.stack.Stack.StackElementLength;
/**
* A basic op that performs classic push/pops on the stack.
* @author Stephane Godbillon
*
*/
public class BasicOpcode extends Op {
protected StackElementLength[] pops, pushes;
public BasicOpcode(int code, OpParameterType... opParameterTypes) {
this(code, new StackElementLength[0], new StackElementLength[0], opParameterTypes);
}
public BasicOpcode(int code, StackElementLength[] pops, StackElementLength[] pushes, OpParameterType... opParameterTypes) {
super(code, opParameterTypes);
this.pops = pops;
this.pushes = pushes;
}
/**
* @return the pops of this opcode.
*/
public StackElementLength[] getPops() {
return pops;
}
/**
* @return the pushes of this opcode.
*/
public StackElementLength[] getPushes() {
return pushes;
}
@Override
public DecodedBasicOp decode(Context context, int index) {
return new DecodedBasicOp(this, context, index);
}
@Override
public String toString() {
return "BasicOp: " + getName();
}
/**
* Internal use only.
*/
public BasicOpcode setPops(StackElementLength... pops) {
if(pops != null)
this.pops = pops;
return this;
}
/**
* Internal use only.
*/
public BasicOpcode setPushes(StackElementLength... pushes) {
if(pushes != null)
this.pushes = pushes;
return this;
}
}