Package com.ibm.wala.ipa.callgraph.propagation

Class PropagationCallGraphBuilder.PutFieldOperator

java.lang.Object

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

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

com.ibm.wala.ipa.callgraph.propagation.UnarySideEffect

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

All Implemented Interfaces:

FixedPointConstants, IPointerOperator

Enclosing class:

PropagationCallGraphBuilder

public class PropagationCallGraphBuilder.PutFieldOperator
extends UnarySideEffect
implements IPointerOperator

Operator that represents a putfield

Field Summary

Fields

Modifier and Type	Field	Description
protected final 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

Constructors

Constructor	Description
PutFieldOperator(IField field, PointsToSetVariable val)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
byte	evaluate(PointsToSetVariable rhs)
protected IntSet	filterInstances(IntSet value)	Subclasses can override as needed
protected IField	getField()
UnaryOperator<PointsToSetVariable>	getPutAssignmentOperator()	subclasses (e.g.
int	hashCode()
boolean	isComplex()	Is the operator complex; i.e., might it give rise to new constraints?
protected boolean	isLoadOperator()	A "load" operator generates defs of the fixed set.
String	toString()

Methods inherited from class com.ibm.wala.ipa.callgraph.propagation.UnarySideEffect

evaluate, replaceFixedSet

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 Details

priorInstances

protected final MutableIntSet priorInstances

Constructor Details

PutFieldOperator

public PutFieldOperator(IField field,
 PointsToSetVariable val)

Method Details

toString

public String toString()

Specified by:

toString 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

evaluate

public byte evaluate(PointsToSetVariable rhs)

Specified by:

evaluate in class UnarySideEffect

filterInstances

protected IntSet filterInstances(IntSet value)

Subclasses can override as needed

hashCode

public int hashCode()

Overrides:

hashCode in class UnarySideEffect

equals

public boolean equals(Object o)

Overrides:

equals in class UnarySideEffect

getPutAssignmentOperator

public UnaryOperator<PointsToSetVariable> getPutAssignmentOperator()

subclasses (e.g. XTA) can override this to enforce a filtered assignment. returns null if there's a problem.

getField

protected IField getField()

Returns:

Returns the field.

isLoadOperator

protected boolean isLoadOperator()

Description copied from class: UnarySideEffect

A "load" operator generates defs of the fixed set. A "store" operator generates uses of the fixed set.

Specified by:

isLoadOperator in class UnarySideEffect