soot.jimple.internal.JIdentityStmt Maven / Gradle / Ivy
package soot.jimple.internal;
/*-
* #%L
* Soot - a J*va Optimization Framework
* %%
* Copyright (C) 1999 Patrick Lam
* %%
* This program 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 program 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 Lesser Public License for more details.
*
* You should have received a copy of the GNU General Lesser Public
* License along with this program. If not, see
* .
* #L%
*/
import java.util.List;
import soot.Local;
import soot.RefType;
import soot.Unit;
import soot.UnitPrinter;
import soot.Value;
import soot.ValueBox;
import soot.baf.Baf;
import soot.jimple.CaughtExceptionRef;
import soot.jimple.IdentityStmt;
import soot.jimple.Jimple;
import soot.jimple.JimpleToBafContext;
import soot.jimple.ParameterRef;
import soot.jimple.StmtSwitch;
import soot.jimple.ThisRef;
import soot.util.Switch;
public class JIdentityStmt extends AbstractDefinitionStmt implements IdentityStmt {
public JIdentityStmt(Value local, Value identityValue) {
this(Jimple.v().newLocalBox(local), Jimple.v().newIdentityRefBox(identityValue));
}
protected JIdentityStmt(ValueBox localBox, ValueBox identityValueBox) {
super(localBox, identityValueBox);
}
public Object clone() {
return new JIdentityStmt(Jimple.cloneIfNecessary(getLeftOp()), Jimple.cloneIfNecessary(getRightOp()));
}
public String toString() {
return leftBox.getValue().toString() + " := " + rightBox.getValue().toString();
}
public void toString(UnitPrinter up) {
leftBox.toString(up);
up.literal(" := ");
rightBox.toString(up);
}
public void setLeftOp(Value local) {
leftBox.setValue(local);
}
public void setRightOp(Value identityRef) {
rightBox.setValue(identityRef);
}
public void apply(Switch sw) {
((StmtSwitch) sw).caseIdentityStmt(this);
}
public void convertToBaf(JimpleToBafContext context, List out) {
Value currentRhs = getRightOp();
Value newRhs;
if (currentRhs instanceof ThisRef) {
newRhs = Baf.v().newThisRef((RefType) ((ThisRef) currentRhs).getType());
} else if (currentRhs instanceof ParameterRef) {
newRhs = Baf.v().newParameterRef(((ParameterRef) currentRhs).getType(), ((ParameterRef) currentRhs).getIndex());
} else if (currentRhs instanceof CaughtExceptionRef) {
Unit u = Baf.v().newStoreInst(RefType.v(), context.getBafLocalOfJimpleLocal((Local) getLeftOp()));
u.addAllTagsOf(this);
out.add(u);
return;
} else {
throw new RuntimeException("Don't know how to convert unknown rhs");
}
Unit u = Baf.v().newIdentityInst(context.getBafLocalOfJimpleLocal((Local) getLeftOp()), newRhs);
u.addAllTagsOf(this);
out.add(u);
}
}