env_bury() is like
env_bind() but it creates the bindings in a
new child environment. This makes sure the new bindings have
precedence over old ones, without altering existing environments.
env_bind(), this function does not have side effects and
returns a new environment (or object wrapping that environment).
Pairs of names and expressions, values or functions. These dots support splicing (with varying semantics, see above) and name unquoting.
A copy of
.env enclosing the new environment containing
orig_env <- env(a = 10) fn <- set_env(function() a, orig_env) # fn() currently sees `a` as the value `10`: fn()#>  10# env_bury() will bury the current scope of fn() behind a new # environment: fn <- env_bury(fn, a = 1000) fn()#>  1000# Even though the symbol `a` is still defined deeper in the scope: orig_env$a#>  10