new_env_chain: Creates the parent environment used by import

In machow/importr: Simple and sane modularity for R code

Description

This function makes importing possible by creating a chain of environments: (1) the depends environment, which contains all objects attached via calls to library or require. (2) the import environment, this environment has functions to override calls to the base library and require. (3) the local environment, which will be returned by import.

Usage

new_env_chain(from)

Arguments

from	a package on the search path that will be initial parent environment

Examples

env <- new_env_chain('package:importr')

machow/importr documentation built on May 21, 2019, 10:51 a.m.