org.checkerframework.dataflow.cfg.node

Class MarkerNode

java.lang.Object

org.checkerframework.dataflow.cfg.node.Node

org.checkerframework.dataflow.cfg.node.MarkerNode

public class MarkerNode
extends Node

MarkerNodes are no-op Nodes used for debugging information. They can hold a Tree and a message, which will be part of the String representation of the MarkerNode.

An example use case for MarkerNodes is representing switch statements.

Author:

Stefan Heule, Charlie Garrett

Field Summary

Fields

Modifier and Type	Field and Description
protected String	message
protected @Nullable Tree	tree

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

assignmentContext, block, inSource, lvalue, type

Constructor Summary

Constructors

Constructor and Description
MarkerNode(@Nullable Tree tree, String message, Types types)

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(Object obj)
String	getMessage()
Collection<Node>	getOperands()
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

getAssignmentContext, getBlock, getInSource, getTransitiveOperands, getType, isLValue, setAssignmentContext, setBlock, setInSource, setLValue

Methods inherited from class java.lang.Object

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

Field Detail

tree

protected @Nullable Tree tree

message

protected String message

Constructor Detail

MarkerNode

public MarkerNode(@Nullable Tree tree,
                  String message,
                  Types types)

Method Detail

getMessage

public String getMessage()

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 ImplicitThisLiteralNode.

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(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

getOperands

public Collection<Node> getOperands()

Specified by:

getOperands in class Node

Returns:

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