JexlParser.LexicalUnit

All Known Implementing Classes:

ASTArrayAccess, ASTBlock, ASTForeachStatement, ASTJexlLambda, ASTJexlScript, ASTTryResources, ASTTryStatement, JexlLexicalNode

Enclosing class:

JexlParser
```
public static interface JexlParser.LexicalUnit
```
A lexical unit is the container defining local symbols and their visibility boundaries.

Method Summary

All Methods Instance Methods Abstract Methods
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`	`setConstant(int symbol)`

- Method Detail
  - declareSymbol
```
boolean declareSymbol(int symbol)
```
    Declares a local symbol.
    
    Parameters:
    
    symbol - the symbol index in the scope
    
    Returns:
    
    true if declaration was successful, false if symbol was already declared
  - getLexicalScope
```
LexicalScope getLexicalScope()
```
    Returns:
    
    the set of symbols identifiers declared in this unit
  - getSymbolCount
```
int getSymbolCount()
```
    Returns:
    
    the number of local variables declared in this unit
  - hasSymbol
```
boolean hasSymbol(int symbol)
```
    Checks whether a symbol is declared in this lexical unit.
    
    Parameters:
    
    symbol - the symbol
    
    Returns:
    
    true if declared, false otherwise
  - isConstant
```
boolean isConstant(int symbol)
```
  - setConstant
```
void setConstant(int symbol)
```