R: Examples for 'rlang::env

### ** Examples

# Get the parent environment with env_parent():
env_parent(global_env())

<environment: package:rlang>
attr(,"name")
[1] "package:rlang"
attr(,"path")
[1] "/data/rcloud/library/4.2/rlang"

# Or the tail environment with env_tail():
env_tail(global_env())

<environment: base>

# By default, env_parent() returns the parent environment of the
# current evaluation frame. If called at top-level (the global
# frame), the following two expressions are equivalent:
env_parent()

<environment: R_GlobalEnv>

env_parent(base_env())

<environment: R_EmptyEnv>

# This default is more handy when called within a function. In this
# case, the enclosure environment of the function is returned
# (since it is the parent of the evaluation frame):
enclos_env <- env()
fn <- set_env(function() env_parent(), enclos_env)
identical(enclos_env, fn())

[1] TRUE

Examples for 'rlang::env_parent'

Get parent environments