soot.jimple.internal.AbstractInstanceFieldRef Maven / Gradle / Ivy
package soot.jimple.internal;
/*-
* #%L
* Soot - a J*va Optimization Framework
* %%
* Copyright (C) 1999 Patrick Lam
* Copyright (C) 2004 Ondrej Lhotak
* %%
* 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.ArrayList;
import java.util.List;
import soot.SootField;
import soot.SootFieldRef;
import soot.Type;
import soot.Unit;
import soot.UnitPrinter;
import soot.Value;
import soot.ValueBox;
import soot.baf.Baf;
import soot.grimp.PrecedenceTest;
import soot.jimple.ConvertToBaf;
import soot.jimple.InstanceFieldRef;
import soot.jimple.JimpleToBafContext;
import soot.jimple.RefSwitch;
import soot.util.Switch;
@SuppressWarnings("serial")
public abstract class AbstractInstanceFieldRef implements InstanceFieldRef, ConvertToBaf {
protected SootFieldRef fieldRef;
final ValueBox baseBox;
protected AbstractInstanceFieldRef(ValueBox baseBox, SootFieldRef fieldRef) {
if (fieldRef.isStatic()) {
throw new RuntimeException("wrong static-ness");
}
this.baseBox = baseBox;
this.fieldRef = fieldRef;
}
public abstract Object clone();
public String toString() {
return baseBox.getValue().toString() + "." + fieldRef.getSignature();
}
public void toString(UnitPrinter up) {
if (PrecedenceTest.needsBrackets(baseBox, this)) {
up.literal("(");
}
baseBox.toString(up);
if (PrecedenceTest.needsBrackets(baseBox, this)) {
up.literal(")");
}
up.literal(".");
up.fieldRef(fieldRef);
}
public Value getBase() {
return baseBox.getValue();
}
public ValueBox getBaseBox() {
return baseBox;
}
public void setBase(Value base) {
baseBox.setValue(base);
}
public SootFieldRef getFieldRef() {
return fieldRef;
}
public void setFieldRef(SootFieldRef fieldRef) {
this.fieldRef = fieldRef;
}
public SootField getField() {
return fieldRef.resolve();
}
@Override
public final List getUseBoxes() {
List useBoxes = new ArrayList();
useBoxes.addAll(baseBox.getValue().getUseBoxes());
useBoxes.add(baseBox);
return useBoxes;
}
public Type getType() {
return fieldRef.type();
}
public void apply(Switch sw) {
((RefSwitch) sw).caseInstanceFieldRef(this);
}
public boolean equivTo(Object o) {
if (o instanceof AbstractInstanceFieldRef) {
AbstractInstanceFieldRef fr = (AbstractInstanceFieldRef) o;
return fr.getField().equals(getField()) && fr.baseBox.getValue().equivTo(baseBox.getValue());
}
return false;
}
/** Returns a hash code for this object, consistent with structural equality. */
public int equivHashCode() {
return getField().equivHashCode() * 101 + baseBox.getValue().equivHashCode() + 17;
}
public void convertToBaf(JimpleToBafContext context, List out) {
((ConvertToBaf) getBase()).convertToBaf(context, out);
Unit u;
out.add(u = Baf.v().newFieldGetInst(fieldRef));
u.addAllTagsOf(context.getCurrentUnit());
}
}