env_get() extracts an object from an enviroment env. By default, it does not look in the parent environments.

env_get(env = caller_env(), nm, inherit = FALSE)

Arguments

env

An environment or an object bundling an environment, e.g. a formula, quosure or closure.

nm

The name of a binding.

inherit

Whether to look for bindings in the parent environments.

Value

An object if it exists. Otherwise, throws an error.

Examples

parent <- child_env(NULL, foo = "foo") env <- child_env(parent, bar = "bar") # This throws an error because `foo` is not directly defined in env: # env_get(env, "foo") # However `foo` can be fetched in the parent environment: env_get(env, "foo", inherit = TRUE)
#> [1] "foo"