Examples for 'rlang::env'

### ** Examples

# env() creates a new environment that inherits from the current
# environment by default
env <- env(a = 1, b = "foo")
env$b

identical(env_parent(env), current_env())

# Supply one unnamed argument to inherit from another environment:
env <- env(base_env(), a = 1, b = "foo")
identical(env_parent(env), base_env())

# Both env() and child_env() support tidy dots features:
objs <- list(b = "foo", c = "bar")
env <- env(a = 1, !!! objs)
env$c

# You can also unquote names with the definition operator `:=`
var <- "a"
env <- env(!!var := "A")
env$a

# Use new_environment() to create containers with the empty
# environment as parent:
env <- new_environment()
env_parent(env)

# Like other new_ constructors, it takes an object rather than dots:
new_environment(list(a = "foo", b = "bar"))