com.ibm.wala.analysis.typeInference
Class TypeInference.PrimitivePropagateOperator

java.lang.Object
  com.ibm.wala.fixpoint.AbstractOperator<TypeVariable>
      com.ibm.wala.analysis.typeInference.TypeInference.PrimitivePropagateOperator

All Implemented Interfaces:

FixedPointConstants

Direct Known Subclasses:

AstJavaTypeInference.PrimAndStringOp

Enclosing class:

TypeInference

protected static class TypeInference.PrimitivePropagateOperator
extends AbstractOperator<TypeVariable>

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

protected

TypeInference.PrimitivePropagateOperator()

Method Summary

boolean	equals(java.lang.Object o)
byte	evaluate(TypeVariable lhs, TypeVariable[] rhs) Evaluate this equation, setting a new value for the left-hand side.
int	hashCode()
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

TypeInference.PrimitivePropagateOperator

protected TypeInference.PrimitivePropagateOperator()

Method Detail

evaluate

public byte evaluate(TypeVariable lhs,
                     TypeVariable[] rhs)

Description copied from class: AbstractOperator

Evaluate this equation, setting a new value for the left-hand side. Note that the RHS is an IVariable[] and not a T[] because the framework may be need to allocate an array for the rhs, and we cannot do new T[] in Java.

Specified by:

evaluate in class AbstractOperator<TypeVariable>

Returns:

a code that indicates: 1) has the lhs value changed? 2) has this equation reached a fixed-point, in that we never have to evaluate the equation again, even if rhs operands change?

toString

public java.lang.String toString()

Specified by:

toString in class AbstractOperator<TypeVariable>

hashCode

public int hashCode()

Specified by:

hashCode in class AbstractOperator<TypeVariable>

equals

public boolean equals(java.lang.Object o)

Specified by:

equals in class AbstractOperator<TypeVariable>