Class CXXR::Expression and associated C interface. More...

#include "CXXR/PairList.h"
#include <boost/serialization/access.hpp>
#include <boost/serialization/nvp.hpp>

Include dependency graph for Expression.h:

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Classes
class	CXXR::Expression
	Singly linked list representing an R expression. More...

Namespaces
namespace	CXXR
	Namespace for the CXXR project.

Functions
SEXP	Rf_currentExpression ()
	Expression currently being evaluated.
SEXP	Rf_lcons (SEXP cr, SEXP tl)
	Create a CXXR::Expression with a specified car and tail.
void	Rf_setCurrentExpression (SEXP e)
	Designate the Expression currently being evaluated.

Variables
CXXR::GCRoot	R_CurrentExpr
	Pointer to expression currently being evaluated.

Detailed Description

Class CXXR::Expression and associated C interface.

Function Documentation

SEXP Rf_currentExpression ( )

Expression currently being evaluated.

Create a CXXR::Expression with a specified car and tail.

This function protects its arguments from the garbage collector.

Parameters:

cr	Pointer to the 'car' of the element to be created.
tl	Pointer to the 'tail' of the element to be created, which must be of a CXXR::PairList type (checked).

void Rf_setCurrentExpression ( SEXP e )

Designate the Expression currently being evaluated.

Parameters:

e	Pointer to the Expression now to be evaluated. (Not currently checked in any way.)