Copy an object from one env to another.

A wrapper function that uses assign and get.

Usage

copy_e2e(from_obj, from_env, to_obj, to_env)

Arguments

from_obj

The name of the object to copy. It has to be a string.

from_env

The environment in which the object lives. It has to be an object of class environment.

to_obj

The name of the object to assign it to, in the new environment. Also a string.

to_env

The environment to which the new object is to be assigned. It has to be an object of class environment.

Value

There is no return value. This function is called for its' side effect.

Examples

e1 <- new.env(); e2 <- new.env()
ls(e2)
#> character(0)
evalq(x <- 1L, e1)
copy_e2e("x", e1, "y", e2)
ls(e2)
#> [1] "y"