org.checkerframework.dataflow.cfg.node

Class AssignmentNode

java.lang.Object

org.checkerframework.dataflow.cfg.node.Node

org.checkerframework.dataflow.cfg.node.AssignmentNode

All Implemented Interfaces:

org.plumelib.util.UniqueId

public class AssignmentNode
extends Node

A node for an assignment:

   variable = expression
   expression . field = expression
   expression [ index ] = expression
 

We allow assignments without corresponding AST Trees.

Field Summary

Fields

Modifier and Type	Field and Description
protected Node	lhs
protected Node	rhs
protected Tree	tree

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

block, inSource, lvalue, type

Constructor Summary

Constructors

Constructor and Description
AssignmentNode(Tree tree, Node target, Node expression)

Method Summary

Modifier and Type	Method and Description
<R,P> R	accept(NodeVisitor<R,P> visitor, P p) Accept method of the visitor pattern.
boolean	equals(@Nullable Object obj)
Node	getExpression()
Collection<Node>	getOperands() Returns a collection containing all of the operand Nodes of this Node.
Node	getTarget() Returns the left-hand-side of the assignment.
Tree	getTree() Returns the Tree in the abstract syntax tree, or null if no corresponding tree exists.
int	hashCode()
String	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

Field Detail

tree

protected final Tree tree

lhs

protected final Node lhs

rhs

protected final Node rhs

Constructor Detail

AssignmentNode

public AssignmentNode(Tree tree,
                      Node target,
                      Node expression)

Method Detail

getTarget

public Node getTarget()

Returns the left-hand-side of the assignment.

Returns:

the left-hand-side of the assignment

getExpression

public Node getExpression()

getTree

public Tree getTree()

Description copied from class: Node

Returns the Tree in the abstract syntax tree, or null if no corresponding tree exists. For instance, this is the case for an ImplicitThisNode.

Specified by:

getTree in class Node

Returns:

the corresponding Tree or null

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

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(@Nullable Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

getOperands

public Collection<Node> getOperands()

Description copied from class: Node

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

Specified by:

getOperands in class Node

Returns:

a collection containing all of the operand Nodes of this Node