com.ibm.wala.ipa.callgraph.propagation
Class PropagationCallGraphBuilder.InstanceArrayStoreOperator

java.lang.Object
  com.ibm.wala.fixpoint.AbstractOperator<T>
      com.ibm.wala.fixpoint.UnaryOperator<PointsToSetVariable>
          com.ibm.wala.ipa.callgraph.propagation.PropagationCallGraphBuilder.InstanceArrayStoreOperator

All Implemented Interfaces:

FixedPointConstants, IPointerOperator

Enclosing class:

PropagationCallGraphBuilder

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

Update the points-to-set for an array contents to include a particular instance key.

Field Summary

protected MutableIntSet

priorInstances

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

PropagationCallGraphBuilder.InstanceArrayStoreOperator(InstanceKey instance)

Method Summary

boolean	equals(java.lang.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?
java.lang.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

Field Detail

priorInstances

protected final MutableIntSet priorInstances

Constructor Detail

PropagationCallGraphBuilder.InstanceArrayStoreOperator

public PropagationCallGraphBuilder.InstanceArrayStoreOperator(InstanceKey instance)

Method Detail

toString

public java.lang.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:

true if the lhs value changes. false otherwise.

hashCode

public int hashCode()

Specified by:

hashCode in class AbstractOperator<PointsToSetVariable>

equals

public boolean equals(java.lang.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