org.nfunk.jep.function
Interface SpecialEvaluationI

Deprecated. The interface CallbackEvaluationI should generally be used instead as its simpler and allows different evaluation schemes to be used.

public interface SpecialEvaluationI

Functions which require greater control over their evaluation should implement this interface.

Author:

Rich Morris

See Also:

Created on 18-Nov-2003

Method Summary

Object

evaluate(Node node, Object data, ParserVisitor pv, Stack stack, SymbolTable symTab) Deprecated. Performs some special evaluation on the node.

Method Detail

evaluate

Object evaluate(Node node,
                Object data,
                ParserVisitor pv,
                Stack stack,
                SymbolTable symTab)
                throws ParseException

Deprecated.

Performs some special evaluation on the node. This method has the responsibility for evaluating the children of the node and it should generally call

 node.jjtGetChild(i).jjtAccept(pv,data);        
 

for each child. Briefly the symbol table was removed as arguments to this method, it is now reinserted.

Parameters:

node - The current node

data - The data passed to visitor, typically not used

pv - The visitor, can be used evaluate the children

stack - The stack of the evaluator

symTab - The symbol table

Returns:

the value after evaluation

Throws:

ParseException