Package org.apache.commons.jexl3.parser

Class JexlLexicalNode

java.lang.Object

org.apache.commons.jexl3.parser.SimpleNode

org.apache.commons.jexl3.parser.JexlNode

org.apache.commons.jexl3.parser.JexlLexicalNode

All Implemented Interfaces:

JexlCache.Reference, JexlParser.LexicalUnit, Node

Direct Known Subclasses:

ASTArrayAccess, ASTBlock, ASTForeachStatement, ASTJexlScript, ASTTryResources, ASTTryStatement

public abstract class JexlLexicalNode
extends JexlNode
implements JexlParser.LexicalUnit

Base class for AST nodes behaving as lexical units.

Since:

3.2

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.commons.jexl3.parser.JexlNode

JexlNode.Constant<T>, JexlNode.Funcall, JexlNode.Info, JexlNode.JxltHandle

Field Summary

Fields

Modifier and Type	Field	Description
private LexicalScope	lexicalScope	The local lexical scope, local information about let/const.
private static long	serialVersionUID

Fields inherited from class org.apache.commons.jexl3.parser.SimpleNode

id

Constructor Summary

Constructors

Constructor	Description
JexlLexicalNode(int id)

Method Summary

Modifier and Type	Method	Description
boolean	declareSymbol(int symbol)	Declares a local symbol.
LexicalScope	getLexicalScope()
int	getSymbolCount()
boolean	hasSymbol(int symbol)	Checks whether a symbol is declared in this lexical unit.
boolean	isConstant(int symbol)
void	jjtClose()	This method is called after all the child nodes have been added.
void	setConstant(int symbol)

Methods inherited from class org.apache.commons.jexl3.parser.JexlNode

clearCache, getCache, getColumn, getLine, isConstant, isConstant, isGlobalVar, isLeftValue, isSafeLhs, isStrictOperator, jexlInfo, jexlInfo, jjtSetFirstToken, jjtSetLastToken, setCache

Methods inherited from class org.apache.commons.jexl3.parser.SimpleNode

childrenAccept, dump, dumpOut, getId, jjtAccept, jjtAddChild, jjtGetChild, jjtGetNumChildren, jjtGetParent, jjtGetValue, jjtOpen, jjtSetChildren, jjtSetParent, jjtSetValue, toString, toString

Methods inherited from class java.lang.Object

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

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

lexicalScope

private LexicalScope lexicalScope

The local lexical scope, local information about let/const.

Constructor Detail

JexlLexicalNode

public JexlLexicalNode(int id)

Method Detail

declareSymbol

public boolean declareSymbol(int symbol)

Description copied from interface: JexlParser.LexicalUnit

Declares a local symbol.

Specified by:

declareSymbol in interface JexlParser.LexicalUnit

Parameters:

symbol - the symbol index in the scope

Returns:

true if declaration was successful, false if symbol was already declared

getLexicalScope

public LexicalScope getLexicalScope()

Specified by:

getLexicalScope in interface JexlParser.LexicalUnit

Returns:

the set of symbols identifiers declared in this unit

getSymbolCount

public int getSymbolCount()

Specified by:

getSymbolCount in interface JexlParser.LexicalUnit

Returns:

the number of local variables declared in this unit

hasSymbol

public boolean hasSymbol(int symbol)

Description copied from interface: JexlParser.LexicalUnit

Checks whether a symbol is declared in this lexical unit.

Specified by:

hasSymbol in interface JexlParser.LexicalUnit

Parameters:

symbol - the symbol

Returns:

true if declared, false otherwise

isConstant

public boolean isConstant(int symbol)

Specified by:

isConstant in interface JexlParser.LexicalUnit

jjtClose

public void jjtClose()

Description copied from interface: Node

This method is called after all the child nodes have been added.

Specified by:

jjtClose in interface Node

Overrides:

jjtClose in class SimpleNode

setConstant

public void setConstant(int symbol)

Specified by:

setConstant in interface JexlParser.LexicalUnit