Module backports

Backport functions

R’s C API is changing and is stabilizing. As such some functions that were available in previous versions of R are not available in later versions of R, or they cause a warning in R CMD check.

Use the functions in this module to ensure backwards compatibility.

Functions

BODY 🔒 ^⚠

CLOENV 🔒 ^⚠

DATAPTR 🔒 ^⚠

ENCLOS 🔒 ^⚠

FORMALS 🔒 ^⚠

Rf_findVar 🔒 ^⚠

Rf_findVarInFrame 🔒 ^⚠

dataptr^⚠

Access a DATAPTR

get_closure_body^⚠

Return the body of a closure

get_closure_env^⚠

Return the environment of a closure

get_closure_formals^⚠

Access a closure’s arguments

get_parent_env^⚠

Returns the enclosing environment of env, which will usually be of type ENVSXP, except for the special environment R_EmptyEnv, which terminates the environment chain; its enclosing environment is R_NilValue.

get_var^⚠

Returns a variable from an environment

get_var_in_frame^⚠

Returns the value of the requested variable in an environment