getEnv {refer}

Extract or Set Reference Environment

Description

Functions to obtain or set the environment to which a ref or sref object points.

Usage

getEnv(x)

setEnv(x, e)

Arguments

x

object of class "ref" or "sref"

e

new environment to which the reference points

Value

environment for getEnv or reference object for setEnv

Examples

x <- 1:10
ref_to_x <- ref(x)
ref_env  <- getEnv(ref_to_x)
ref_sym  <- getSym(ref_to_x)

identical(ref_env, .GlobalEnv)
identical(ref_sym, "x")

e <- new.env()
e$x <- 100
ref_to_x <- setEnv(ref_to_x, e)
!ref_to_x