Package ortus.boxlang.compiler.ast.expression

Class BoxNull

java.lang.Object

ortus.boxlang.compiler.ast.BoxNode

ortus.boxlang.compiler.ast.BoxExpression

ortus.boxlang.compiler.ast.expression.BoxNull

All Implemented Interfaces:

IBoxSimpleLiteral, BoxVisitable

public class BoxNull
extends BoxExpression
implements IBoxSimpleLiteral

AST Node representing a string literal value

Field Summary

Fields inherited from class ortus.boxlang.compiler.ast.BoxNode

parent, position

Constructor Summary

Constructors

Constructor	Description
BoxNull(Position position, String sourceText)	Creates the AST node

Method Summary

Modifier and Type	Method	Description
BoxNode	accept(ReplacingBoxVisitor v)	Accept method for replacing visitor support.
void	accept(VoidBoxVisitor v)	Accept method for visitor support.
Object	getValue()
boolean	isLiteral()	Utility method to detect if an expression node is a terminal Literal

Methods inherited from class ortus.boxlang.compiler.ast.BoxNode

addComment, associateComments, endsOnSameLineAs, enumToMap, getAncestors, getChildren, getComments, getDescendants, getDescendantsOfType, getDocComment, getFirstAncestorOfType, getFirstAncestorOfType, getFirstNodeOfType, getFirstNodeOfType, getFirstNodeOfTypes, getParent, getPosition, getSourceText, isAfter, isBefore, isInside, replaceChildren, replaceChildren, setComments, setParent, setPosition, setSourceText, startsOnEndLineOf, toJSON, toMap, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

BoxNull

public BoxNull(Position position,
 String sourceText)

Creates the AST node

Parameters:

position - position of the statement in the source code

sourceText - source code that originated the Node

Method Details

getValue

public Object getValue()

Specified by:

getValue in interface IBoxSimpleLiteral

isLiteral

public boolean isLiteral()

Description copied from class: BoxExpression

Utility method to detect if an expression node is a terminal Literal

Overrides:

isLiteral in class BoxExpression

Returns:

true if it is false otherwise

accept

public void accept(VoidBoxVisitor v)

Description copied from interface: BoxVisitable

Accept method for visitor support.

Specified by:

accept in interface BoxVisitable

Parameters:

v - the visitor implementation

accept

public BoxNode accept(ReplacingBoxVisitor v)

Description copied from interface: BoxVisitable

Accept method for replacing visitor support. Each accept returns the node, or a replacement node.

Specified by:

accept in interface BoxVisitable

Parameters:

v - the visitor implementation