com.ibm.wala.fixpoint

Class UnaryOr

java.lang.Object

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

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

com.ibm.wala.fixpoint.UnaryOr

All Implemented Interfaces:

FixedPointConstants

public final class UnaryOr
extends UnaryOperator<BooleanVariable>

Operator U(n) = U(n) | U(j)

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

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
byte	evaluate(BooleanVariable lhs, BooleanVariable rhs) Evaluate this equation, setting a new value for the left-hand side.
int	hashCode()
static UnaryOr	instance()
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

Method Detail

instance

public static UnaryOr instance()

evaluate

public byte evaluate(BooleanVariable lhs,
                     BooleanVariable rhs)
              throws IllegalArgumentException

Description copied from class: UnaryOperator

Evaluate this equation, setting a new value for the left-hand side.

Specified by:

evaluate in class UnaryOperator<BooleanVariable>

Returns:

true if the lhs value changes. false otherwise.

Throws:

IllegalArgumentException

toString

public String toString()

Specified by:

toString in class AbstractOperator<BooleanVariable>

hashCode

public int hashCode()

Specified by:

hashCode in class AbstractOperator<BooleanVariable>

equals

public boolean equals(Object o)

Specified by:

equals in class AbstractOperator<BooleanVariable>