Class PropagationCallGraphBuilder.InstancePutFieldOperator

java.lang.Object

com.ibm.wala.fixpoint.AbstractOperator<PointsToSetVariable>

com.ibm.wala.fixpoint.UnaryOperator<PointsToSetVariable>

com.ibm.wala.ipa.callgraph.propagation.PropagationCallGraphBuilder.InstancePutFieldOperator

All Implemented Interfaces:

FixedPointConstants, IPointerOperator

Enclosing class:

PropagationCallGraphBuilder

public final class PropagationCallGraphBuilder.InstancePutFieldOperator
extends UnaryOperator<PointsToSetVariable>
implements IPointerOperator

Update the points-to-set for a field to include a particular instance key.

Field Summary

Fields inherited from interface com.ibm.wala.fixpoint.FixedPointConstants

CHANGED, CHANGED_AND_FIXED, CHANGED_MASK, FIXED_MASK, NOT_CHANGED, NOT_CHANGED_AND_FIXED, SIDE_EFFECT_MASK

Constructor Summary

Constructors

Constructor	Description
InstancePutFieldOperator(IField field, InstanceKey instance)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
byte	evaluate(PointsToSetVariable dummyLHS, PointsToSetVariable var)	Simply add the instance to each relevant points-to set.
int	hashCode()
boolean	isComplex()	Is the operator complex; i.e., might it give rise to new constraints?
String	toString()

Methods inherited from class com.ibm.wala.fixpoint.UnaryOperator

evaluate, isIdentity, makeEquation

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

InstancePutFieldOperator

public InstancePutFieldOperator(IField field,
 InstanceKey instance)

Method Details

toString

public String toString()

Specified by:

toString in class AbstractOperator<PointsToSetVariable>

evaluate

public byte evaluate(PointsToSetVariable dummyLHS,
 PointsToSetVariable var)

Simply add the instance to each relevant points-to set.

Specified by:

evaluate in class UnaryOperator<PointsToSetVariable>

Returns:

a constant defined by FixedPointConstants that reflects whether the lhs value changed

hashCode

public int hashCode()

Specified by:

hashCode in class AbstractOperator<PointsToSetVariable>

equals

public boolean equals(Object o)

Specified by:

equals in class AbstractOperator<PointsToSetVariable>

isComplex

public boolean isComplex()

Description copied from interface: IPointerOperator

Is the operator complex; i.e., might it give rise to new constraints?

Specified by:

isComplex in interface IPointerOperator