luciad::Expression Class Reference

An expression is an opaque object whose evaluation returns a value. More...

#include <luciad/expressions/Expression.h>

Public Member Functions
void	accept (IExpressionVisitor &visitor) const
	An expression accepts a visitor allowing to traverse the expression hierarchy. More...
bool	isCondition () const
	Returns true when this expression is a condition. More...
bool	operator!= (const Expression &other) const
bool	operator== (const Expression &other) const

Detailed Description

An expression is an opaque object whose evaluation returns a value.

A condition is a case of an expression that always returns a boolean value.

Member Function Documentation

accept()

void luciad::Expression::accept

(

IExpressionVisitor &

visitor

)

const

An expression accepts a visitor allowing to traverse the expression hierarchy.

Parameters

visitor

the visitor.

isCondition()

bool luciad::Expression::isCondition

(

)

const

Returns true when this expression is a condition.

This is the case when the evaluation of the expression always results in a boolean.

Returns

true when this expression is a condition.

operator!=()

bool luciad::Expression::operator!=

(

const Expression &

other

)

const

operator==()

bool luciad::Expression::operator==

(

const Expression &

other

)

const