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Xor.java
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package symjava.logic;
import java.util.Map;
import com.sun.org.apache.bcel.internal.generic.ConstantPoolGen;
import com.sun.org.apache.bcel.internal.generic.DCMPL;
import com.sun.org.apache.bcel.internal.generic.GOTO;
import com.sun.org.apache.bcel.internal.generic.IFLE;
import com.sun.org.apache.bcel.internal.generic.IXOR;
import com.sun.org.apache.bcel.internal.generic.InstructionFactory;
import com.sun.org.apache.bcel.internal.generic.InstructionHandle;
import com.sun.org.apache.bcel.internal.generic.InstructionList;
import com.sun.org.apache.bcel.internal.generic.MethodGen;
import com.sun.org.apache.bcel.internal.generic.NOP;
import com.sun.org.apache.bcel.internal.generic.PUSH;
import symjava.symbolic.Expr;
import symjava.symbolic.Expr.TYPE;
import symjava.symbolic.TypeInfo;
import symjava.symbolic.arity.BinaryOp;
public class Xor extends BinaryOp implements Logic {
public Xor(Expr l, Expr r) {
super(l, r);
this.label = l+" ^ "+r;
this.sortKey = this.label;
}
@Override
public Expr simplify() {
return this;
}
@Override
public boolean symEquals(Expr other) {
return false;
}
@Override
public Expr diff(Expr expr) {
return this;
}
public static Expr simplifiedIns(Expr lhs, Expr rhs) {
return new Xor(lhs, rhs);
}
public InstructionHandle bytecodeGen(String clsName, MethodGen mg,
ConstantPoolGen cp, InstructionFactory factory,
InstructionList il, Map<String, Integer> argsMap, int argsStartPos,
Map<Expr, Integer> funcRefsMap) {
InstructionHandle startPos = arg1.bytecodeGen(clsName, mg, cp, factory, il, argsMap, argsStartPos, funcRefsMap);
arg2.bytecodeGen(clsName, mg, cp, factory, il, argsMap, argsStartPos, funcRefsMap);
il.append(new IXOR());
return startPos;
}
@Override
public TypeInfo getTypeInfo() {
return TypeInfo.tiInt;
}
@Override
public void updateLabel() {
// TODO Auto-generated method stub
}
}