Method is_empty

core/src/callable.rs:365–367

Returns true if this syntax represents "no arguments".

(&self)

    /// Returns true if this syntax represents "no arguments".
    pub(crate) fn is_empty(&self) -> bool {
        self.singular.is_empty() && self.repeated.is_none()
    }

    /// Produces a user-friendly description of this callable syntax.
    pub(crate) fn describe(&self) -> String {