Package org.checkerframework.dataflow.cfg.node

Class NullLiteralNode

java.lang.Object

org.checkerframework.dataflow.cfg.node.Node

org.checkerframework.dataflow.cfg.node.ValueLiteralNode

org.checkerframework.dataflow.cfg.node.NullLiteralNode

All Implemented Interfaces:

org.plumelib.util.UniqueId

public class NullLiteralNode
extends ValueLiteralNode

A node for the null literal.

   null
 

Field Summary

Fields inherited from class org.checkerframework.dataflow.cfg.node.ValueLiteralNode

tree

Fields inherited from class org.checkerframework.dataflow.cfg.node.Node

block, disambiguateOwner, inSource, lvalue, type

Constructor Summary

Constructors

Constructor	Description
NullLiteralNode(LiteralTree t)	Create a new NullLiteralNode.

Method Summary

Modifier and Type	Method	Description
<R, P> R	accept(NodeVisitor<R,P> visitor, P p)	Accept method of the visitor pattern.
boolean	equals(@Nullable Object obj)
Collection<Node>	getOperands()	Returns a collection containing all of the operand Nodes of this Node.
Void	getValue()	Returns the value of the literal, null for the null literal.

Methods inherited from class org.checkerframework.dataflow.cfg.node.ValueLiteralNode

getTree, hashCode, toString

Methods inherited from class org.checkerframework.dataflow.cfg.node.Node

getBlock, getInSource, getTransitiveOperands, getType, getUid, isLValue, nodeCollectionToString, setBlock, setInSource, setLValue, toStringDebug

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.plumelib.util.UniqueId

getClassAndUid

Constructor Details

NullLiteralNode

public NullLiteralNode(LiteralTree t)

Create a new NullLiteralNode.

Parameters:

t - the tree for the literal value

Method Details

getValue

public Void getValue()

Description copied from class: ValueLiteralNode

Returns the value of the literal, null for the null literal.

Specified by:

getValue in class ValueLiteralNode

Returns:

the value of the literal, null for the null literal

accept

public <R,
P> R accept(NodeVisitor<R,P> visitor,
 P p)

Description copied from class: Node

Accept method of the visitor pattern.

Specified by:

accept in class Node

Type Parameters:

R - result type of the operation

P - parameter type

Parameters:

visitor - the visitor to be applied to this node

p - the parameter for this operation

equals

public boolean equals(@Nullable Object obj)

Overrides:

equals in class ValueLiteralNode

getOperands

@SideEffectFree
public Collection<Node> getOperands()

Description copied from class: Node

Returns a collection containing all of the operand Nodes of this Node.

Overrides:

getOperands in class ValueLiteralNode

Returns:

a collection containing all of the operand Nodes of this Node