rlang (version 0.2.1)

env_depth: Depth of an environment chain

Description

This function returns the number of environments between env and the empty environment, including env. The depth of env is also the number of parents of env (since the empty environment counts as a parent).

Usage

env_depth(env)

Arguments

env

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

Value

An integer.

See Also

The section on inheritance in env() documentation.

Examples

# NOT RUN {
env_depth(empty_env())
env_depth(pkg_env("rlang"))
# }