RObject.cpp File Reference

($Id: RObject.cpp 1348 2013-02-25 17:49:03Z arr $)

#include "CXXR/RObject.h"
#include <cstdlib>
#include <iostream>
#include "localization.h"
#include "R_ext/Error.h"
#include "CXXR/GCStackRoot.hpp"
#include "CXXR/PairList.h"
#include "CXXR/Symbol.h"

Include dependency graph for RObject.cpp:

Namespaces
namespace	CXXR
	Namespace for the CXXR project.

Functions
SEXP	ATTRIB (SEXP x)
	Get the attributes of a CXXR::RObject.
void	DUPLICATE_ATTRIB (SEXP to, SEXP from)
	Replace the attributes of to by those of from.
void	SET_ATTRIB (SEXP x, SEXP v)
	Replace an object's attributes.
void	maybeTraceMemory1 (SEXP dest, SEXP src)
	C interface to RObject::traceMemory().
void	maybeTraceMemory2 (SEXP dest, SEXP src1, SEXP src2)
	C interface to RObject::traceMemory().

Variables
void(*	CXXR::ForceNonInline::DUPLICATE_ATTRIBptr )(SEXP, SEXP) = DUPLICATE_ATTRIB
Rboolean(*	CXXR::ForceNonInline::isNullptr )(SEXP s) = Rf_isNull
Rboolean(*	CXXR::ForceNonInline::isObjectptr )(SEXP s) = Rf_isObject
Rboolean(*	CXXR::ForceNonInline::IS_S4_OBJECTptr )(SEXP x) = IS_S4_OBJECT
int(*	CXXR::ForceNonInline::NAMEDptr )(SEXP x) = NAMED
Rboolean(*	CXXR::ForceNonInline::OBJECTptr )(SEXP e) = OBJECT
void(*	CXXR::ForceNonInline::SET_NAMEDptr )(SEXP x, int v) = SET_NAMED
void(*	CXXR::ForceNonInline::SET_S4_OBJECTptr )(SEXP x) = SET_S4_OBJECT
SEXPTYPE(*	CXXR::ForceNonInline::TYPEOFptr )(SEXP e) = TYPEOF
void(*	CXXR::ForceNonInline::UNSET_S4_OBJECTptr )(SEXP x) = UNSET_S4_OBJECT

---

Detailed Description

Class RObject and associated C interface functions.

---

Function Documentation

SEXP ATTRIB

(

SEXP

x

)

Get the attributes of a CXXR::RObject.

Parameters:

x	Pointer to the CXXR::RObject whose attributes are required.

Returns:

Pointer to the attributes object of x , or 0 if x is a null pointer.

void DUPLICATE_ATTRIB	(	SEXP	to,
		SEXP	from
	)

Replace the attributes of to by those of from.

The status of to as an S4 Object is also copied from from .

Parameters:

to	Pointer to CXXR::RObject.
from	Pointer to another CXXR::RObject.

void maybeTraceMemory1	(	SEXP	dest,
		SEXP	src
	)

C interface to RObject::traceMemory().

This function provides a C language interface to dest->maybeTraceMemory(src): see the documentation of that method for details.

Parameters:

dest	Non-null pointer to an RObject.
src	Non-null pointer to an RObject.

void maybeTraceMemory2	(	SEXP	dest,
		SEXP	src1,
		SEXP	src2
	)

C interface to RObject::traceMemory().

This function provides a C language interface to dest->maybeTraceMemory(src1, src2): see the documentation of that method for details.

Parameters:

dest	Non-null pointer to an RObject.
src1	Non-null pointer to an RObject.
src2	Non-null pointer to an RObject.

void SET_ATTRIB	(	SEXP	x,
		SEXP	v
	)

Replace an object's attributes.

Parameters:

x	Pointer to a CXXR::RObject.
v	Pointer to a PairList giving the new attributes of x. x should be considered to assume ownership of the 'car' values in v ; they should therefore not be subsequently altered externally.

Note:

Unlike CR, v isn't simply plugged into the attributes field of x : refer to the documentation for RObject::setAttributes() . In particular, do not attempt to modify the attributes by changing v after SET_ATTRIB has been called.

For compatibility with CR, garbage collection is inhibited within this function.