Type Alias CommandParameter 

pub type CommandParameter = Option<Rc<dyn Any>>;

A command parameter (object?): the value the command is executed with, of any type, or none. A command receives it as Option<&dyn Any> (parameter.as_deref()).

Aliased Type

pub enum CommandParameter {
    None,
    Some(Rc<dyn Any>),
}

Variants

None

No value.

Some(Rc<dyn Any>)

Some value of type T.