Class TypeInference.DeclaredTypeOperator

java.lang.Object

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

com.ibm.wala.fixedpoint.impl.NullaryOperator<TypeVariable>

com.ibm.wala.analysis.typeInference.TypeInference.DeclaredTypeOperator

All Implemented Interfaces:

FixedPointConstants

Enclosing class:

TypeInference

protected static final class TypeInference.DeclaredTypeOperator
extends NullaryOperator<TypeVariable>

An operator which initializes a type to a declared type.

Field Summary

Fields inherited from interface FixedPointConstants

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

Modifier and Type	Field	Description
static final byte	CHANGED	A return value which indicates that a lhs has changed, and the statement might need to be evaluated again.
static final byte	CHANGED_AND_FIXED	A return value which indicates that lhs has changed, and the statement need not be evaluated again.
static final int	CHANGED_MASK	The bit-mask which defines the "CHANGED" flag
static final int	FIXED_MASK	The bit-mask which defines the "FIXED" flag
static final byte	NOT_CHANGED	A return value which indicates that lhs has not changed, and the statement might need to be evaluated again.
static final byte	NOT_CHANGED_AND_FIXED	A return value which indicates that lhs has not changed, and the statement need not be evaluated again.
static final int	SIDE_EFFECT_MASK	The bit-mask which defines the "SIDE EFFECT" flag

Constructor Summary

Constructors

Constructor	Description
DeclaredTypeOperator(TypeAbstraction type)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
byte	evaluate(TypeVariable lhs)	Note that we need evaluate this operator at most once
int	hashCode()
static boolean	isNullary()
String	toString()

Methods inherited from class NullaryOperator

evaluate

Modifier and Type	Method	Description
byte	evaluate(TypeVariable lhs, TypeVariable[] rhs)	Evaluate this equation, setting a new value for the left-hand side.

Methods inherited from class Object

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

Constructor Details

DeclaredTypeOperator

public DeclaredTypeOperator(TypeAbstraction type)

Method Details

evaluate

public byte evaluate(TypeVariable lhs)

Note that we need evaluate this operator at most once

Specified by:

evaluate in class NullaryOperator<TypeVariable>

Returns:

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

toString

public String toString()

Specified by:

toString in class AbstractOperator<TypeVariable>

See Also:

• Object.toString()

isNullary

public static boolean isNullary()

hashCode

public int hashCode()

Specified by:

hashCode in class AbstractOperator<TypeVariable>

equals

public boolean equals(Object o)

Specified by:

equals in class AbstractOperator<TypeVariable>