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env_bury
Mask bindings by defining symbols deeper in a scope
Description
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.
Unlike env_bind(), this function does not have side effects and
returns a new environment (or object wrapping that environment).
Usage
env_bury(.env, ...)
Arguments
Value
A copy of .env enclosing the new environment containing
bindings to ... arguments.
See Also
Examples
orig_env <- env(a = 10) fn <- set_env(function() a, orig_env) # fn() currently sees `a` as the value `10`: fn() # env_bury() will bury the current scope of fn() behind a new # environment: fn <- env_bury(fn, a = 1000) fn() # Even though the symbol `a` is still defined deeper in the scope: orig_env$a