Expression.cpp File Reference

($Id: Expression.cpp 1351 2013-03-08 15:12:28Z arr $)

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

#include "CXXR/Expression.h"
#include <iostream>
#include "R_ext/Error.h"
#include "localization.h"
#include "CXXR/ArgList.hpp"
#include "CXXR/Environment.h"
#include "CXXR/Evaluator.h"
#include "CXXR/FunctionBase.h"
#include "CXXR/GCStackRoot.hpp"
#include "CXXR/Symbol.h"

Include dependency graph for Expression.cpp:

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
SEXP(*	CXXR::ForceNonInline::lconsp )(SEXP cr, SEXP tl) = Rf_lcons
GCRoot	R_CurrentExpr
	Pointer to expression currently being evaluated.

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Detailed Description

Class CXXR::Expression and associated C interface.

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Function Documentation

SEXP Rf_currentExpression

(

)

Expression currently being evaluated.

Returns:

Pointer to the Expression currently being evaluated.

SEXP Rf_lcons	(	SEXP	cr,
		SEXP	tl
	)

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).

Returns:

Pointer to the constructed list.

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.)