Module ownership 

Maintain ownership of R objects.

This provides the functions protect and unprotect. A single preserved vector holds ownership of all protected objects.

Objects are reference counted, so multiple calls are possible, unlike R_PreserveObject.

This module exports two functions, protect(sexp) and unprotect(sexp).

Re-exports

use once_cell::sync::Lazy; 🔒

use std::collections::hash_map::Entry; 🔒

use std::collections::hash_map::HashMap; 🔒

use std::sync::Mutex; 🔒

use extendr_ffi::R_NilValue; 🔒

use extendr_ffi::R_PreserveObject; 🔒

use extendr_ffi::R_ReleaseObject; 🔒

use extendr_ffi::R_xlen_t; 🔒

use extendr_ffi::Rf_allocVector; 🔒

use extendr_ffi::Rf_protect; 🔒

use extendr_ffi::Rf_unprotect; 🔒

use extendr_ffi::LENGTH; 🔒

use extendr_ffi::SET_VECTOR_ELT; 🔒

use extendr_ffi::SEXP; 🔒

use extendr_ffi::SEXPTYPE; 🔒

use extendr_ffi::VECTOR_ELT; 🔒

use self::send_sexp::SendSEXP; 🔒

Modules

send_sexp 🔒

Provide a wrapper around R’s pointer type SEXP that is Send.

Structs

Object 🔒

Ownership 🔒

Constants

EXTRA_PRESERVATION_SIZE

INITIAL_PRESERVATION_SIZE

Statics

OWNERSHIP 🔒

Functions

protect 🔒 ^⚠

unprotect 🔒 ^⚠