Crate extendr_ffi 

Low level bindings to R’s C API

extendr-ffi powers the extendr-api library.

Re-exports

pub use altrep::*;

pub use backports::*;

Modules

altrep

ALTREP support

backports

Backport functions

secret 🔒

symbols 🔒

Statics representing R Symbols

Structs

R_CMethodDef

These are very similar to those in Rdynpriv.h, but we maintain them separately to give us more freedom to do some computations on the internal versions that are derived from these definitions.

R_CallMethodDef

R_inpstream_st

R_outpstream_st

Rcomplex

R 4.3 redefined Rcomplex to a union for compatibility with Fortran. But the old definition is compatible both the union version and the struct version. See: https://github.com/extendr/extendr/issues/524

SEXPREC

_DllInfo

Enums

ParseStatus

PARSE_NULL will not be returned by R_ParseVector

R_pstream_format_t

Rboolean

A C type with enumeration constants FALSE and TRUE defined.

SEXPTYPE

Enum of possible SEXP types

cetype_t

cetype_t is an identifier reseved by POSIX, but it is well established as public. Could remap by a #define though

Statics

R_BaseEnv^⚠

The base environment; formerly R_NilValue

R_BaseNamespace^⚠

The (fake) namespace for base

R_BaseSymbol^⚠

“base”

R_BlankScalarString^⚠

“” as a STRSXP

R_BlankString^⚠

“” as a CHARSXP

R_BraceSymbol^⚠

“{”

R_Bracket2Symbol^⚠

“[[”

R_BracketSymbol^⚠

“[”

R_CStackLimit^⚠

C stack limit

R_ClassSymbol^⚠

“class”

R_DeviceSymbol^⚠

“.Device”

R_DimNamesSymbol^⚠

“dimnames”

R_DimSymbol^⚠

“dim”

R_DollarSymbol^⚠

“$”

R_DotsSymbol^⚠

“…”

R_DoubleColonSymbol^⚠

“::”

R_DropSymbol^⚠

“drop”

R_EmptyEnv^⚠

An empty environment at the root of the environment tree

R_EvalSymbol^⚠

“eval”

R_FunctionSymbol^⚠

“function”

R_GlobalEnv^⚠

The “global” environment

R_LastvalueSymbol^⚠

“.Last.value”

R_LevelsSymbol^⚠

“levels”

R_MissingArg^⚠

Missing argument marker

R_ModeSymbol^⚠

“mode”

R_NaInt^⚠

NA_INTEGER:= INT_MIN currently

R_NaN^⚠

IEEE NaN

R_NaReal^⚠

NA_REAL: IEEE

R_NaRmSymbol^⚠

“na.rm”

R_NaString^⚠

NA_STRING as a CHARSXP

R_NameSymbol^⚠

“name”

R_NamesSymbol^⚠

“names”

R_NamespaceEnvSymbol^⚠

“.NAMESPACE.”

R_NegInf^⚠

IEEE -Inf

R_NilValue^⚠

The nil object

R_PackageSymbol^⚠

“package”

R_PosInf^⚠

IEEE Inf

R_PreviousSymbol^⚠

“previous”

R_QuoteSymbol^⚠

“quote”

R_RowNamesSymbol^⚠

“row.names”

R_SeedsSymbol^⚠

“.Random.seed”

R_SortListSymbol^⚠

“sort.list”

R_SourceSymbol^⚠

“source”

R_SpecSymbol^⚠

“spec”

R_Srcref^⚠

Current srcref, for debuggers

R_TripleColonSymbol^⚠

“:::”

R_TspSymbol^⚠

“tsp”

R_dot_Generic^⚠

“.Generic”

R_dot_Method^⚠

“.Method”

R_dot_defined^⚠

“.defined”

R_dot_packageName^⚠

“.packageName”

R_dot_target^⚠

“.target”

Functions

CAR^⚠

CDR^⚠

COMPLEX^⚠

COMPLEX_ELT^⚠

COMPLEX_GET_REGION^⚠

DATAPTR^⚠

DATAPTR_OR_NULL^⚠

DATAPTR_RO^⚠

GetRNGstate^⚠

INTEGER^⚠

INTEGER_ELT^⚠

INTEGER_GET_REGION^⚠

INTEGER_IS_SORTED^⚠

INTEGER_NO_NA^⚠

LENGTH^⚠

LOGICAL^⚠

LOGICAL_ELT^⚠

LOGICAL_GET_REGION^⚠

MARK_NOT_MUTABLE^⚠

PRINTNAME^⚠

PutRNGstate^⚠

RAW^⚠

RAW_GET_REGION^⚠

REAL^⚠

REAL_ELT^⚠

REAL_GET_REGION^⚠

REAL_IS_SORTED^⚠

REAL_NO_NA^⚠

REprintf^⚠

R_CHAR^⚠

srcref related functions

R_CleanTempDir^⚠

R_ClearExternalPtr^⚠

R_ExternalPtrAddr^⚠

R_ExternalPtrProtected^⚠

R_ExternalPtrTag^⚠

R_GetCurrentEnv^⚠

R_GetCurrentSrcref^⚠

srcref related functions

R_GetSrcFilename^⚠

R_IsNA^⚠

NA_STRING is a SEXP, so defined in Rinternals.h

R_IsNaN^⚠

R_IsNamespaceEnv^⚠

R_IsPackageEnv^⚠

R_MakeExternalPtr^⚠

External pointer interface

R_MakeUnwindCont^⚠

R_NamespaceEnvSpec^⚠

R_NewEnv^⚠

Environment and Binding Features

R_PackageEnvName^⚠

R_ParseVector^⚠

R_PreserveObject^⚠

preserve objects across GCs

R_RegisterCFinalizerEx^⚠

R_ReleaseObject^⚠

R_RunExitFinalizers^⚠

R_Serialize^⚠

R_SetExternalPtrAddr^⚠

R_SetExternalPtrProtected^⚠

R_SetExternalPtrTag^⚠

R_Unserialize^⚠

R_UnwindProtect^⚠

R_compute_identical^⚠

R_do_slot^⚠

R_do_slot_assign^⚠

R_finite^⚠

R_forceSymbols^⚠

R_has_slot^⚠

R_registerRoutines^⚠

R_tryEval^⚠

R_tryEvalSilent^⚠

R_unif_index^⚠

R_useDynamicSymbols^⚠

Rf_GetArrayDimnames^⚠

Rf_GetColNames^⚠

Rf_GetRowNames^⚠

Rf_NoDevices^⚠

Rf_NumDevices^⚠

Rf_PairToVectorList^⚠

Rf_PrintValue^⚠

Rf_ScalarInteger^⚠

Rf_VectorToPairList^⚠

Rf_allocMatrix^⚠

Rf_allocVector^⚠

Rf_asChar^⚠

Rf_asCharacterFactor^⚠

Rf_coerceVector^⚠

Rf_conformable^⚠

Rf_cons^⚠

Rf_defineVar^⚠

Rf_dimgets^⚠

Rf_dimnamesgets^⚠

Rf_duplicate^⚠

Rf_error^⚠

Rf_errorcall^⚠

Rf_findFun^⚠

Rf_getAttrib^⚠

Rf_initialize_R^⚠

Rf_install^⚠

Rf_isArray^⚠

Rf_isComplex^⚠

Rf_isEnvironment^⚠

Rf_isExpression^⚠

Rf_isFactor^⚠

Rf_isFunction^⚠

Rf_isInteger^⚠

Rf_isLanguage^⚠

Rf_isList^⚠

Rf_isLogical^⚠

Rf_isMatrix^⚠

Rf_isNewList^⚠

Rf_isNull^⚠

Rf_isNumber^⚠

Rf_isObject^⚠

Rf_isPrimitive^⚠

Rf_isReal^⚠

Rf_isS4^⚠

Safety

Rf_isString^⚠

Rf_isSymbol^⚠

Rf_isTs^⚠

Rf_isUserBinop^⚠

Rf_isVector^⚠

Rf_isVectorAtomic^⚠

Rf_isVectorList^⚠

Rf_isVectorizable^⚠

Rf_lang1^⚠

Rf_lcons^⚠

Rf_mkCharLenCE^⚠

Rf_namesgets^⚠

Rf_ncols^⚠

Rf_nrows^⚠

Rf_protect^⚠

Rf_runif^⚠

Rf_setAttrib^⚠

Rf_unprotect^⚠

Rf_warningcall^⚠

Rf_xlength^⚠

Rf_xlengthgets^⚠

Rprintf^⚠

SETCDR^⚠

SETLEVELS^⚠

SET_INTEGER_ELT^⚠

SET_OBJECT^⚠

SET_REAL_ELT^⚠

SET_STRING_ELT^⚠

SET_TAG^⚠

SET_VECTOR_ELT^⚠

STRING_ELT^⚠

STRING_IS_SORTED^⚠

STRING_NO_NA^⚠

STRING_PTR_RO^⚠

TAG^⚠

TYPEOF^⚠

Returns the SEXPTYPE of x

VECTOR_ELT^⚠

XLENGTH^⚠

setup_Rmainloop^⚠

Type Aliases

DL_FUNC

Called with a variable argument set after casting to a compatible function pointer.

DllInfo

Int32

R_CFinalizer_t

Finalization interface

R_ExternalMethodDef

R_FortranMethodDef

R_NativePrimitiveArgType

R_inpstream_t

R_len_t

type for length of (standard, not long) vectors etc

R_outpstream_t

R_pstream_data_t

R_xlen_t

R_xlen_t is defined as int on 32-bit platforms, and that confuses Rust. Keeping it always as ptrdiff_t works fine even on 32-bit.

Rbyte

SEXP