provide: Provide Objects from a Module

In mod: Lightweight and Self-Contained Modules for Code Organization

Description

Can only be used inside a module expression. If this function is used, only the names included as argument are public. If not used, every name in the module will be public.

Usage

provide(...)

Arguments

...	name of any object to be accessible by user; name or character

Value

NULL; invisible

Examples

mod_a <- mod::ule({
    # names included in provide() are public, however...
    mod:::provide(var,.var, ..var)
    # It is suggested to omit mod::: when using
    var <- 1
    .var <- 2
    ..var <- 3 # objects denoted by .. prefix are always private.
    another_var <- 4 # objects not included in provide() are also private.
})

mod_b <- mod::ule({
    # if no call to provide(), all objects are public, except...
    var <- 1
    .var <- 2
    ..var <- 3 # objects denoted by .. prefix are always private.
})

ls(mod_a)
ls(mod_b)

mod documentation built on Aug. 23, 2019, 5:05 p.m.