stx::Grammar::PNUnaryArithmExpr Class Reference

Parse tree node representing an unary operator: '+', '-', '!' or "not". More...

Inheritance diagram for stx::Grammar::PNUnaryArithmExpr:


Public Member Functions
	PNUnaryArithmExpr (const ParseNode *_operand, char _op)
	Constructor from the parser: operand subnode and operator id.
virtual	~PNUnaryArithmExpr ()
	Recursively delete the parse tree.
virtual AnyScalar	evaluate (const class SymbolTable &st) const
	Applies the operator to the recursively calculated value.
virtual bool	evaluate_const (AnyScalar *dest) const
	Calculates subnodes and returns result if the operator can be applied.
virtual std::string	toString () const
	Return the subnode's string with this operator prepended.
Private Attributes
const ParseNode *	operand
	Pointer to the single operand.
char	op
	Arithmetic operation to perform: either '+', '-' or '!'.