//! The optional type, representing the presence or absence of a thing.
use super::preamble::*;

pub enum Option<T> {
    Some(T),
    None,
}

impl Option {
    pub fn is_some(self: &Self) -> bool {
        match self {
            Some(_) => true,
            None => false,
        }
    }
    pub fn is_none(self: &Self) -> bool {
        match self {
            Some(_) => false,
            None => true,
        }
    }
    /// Maps from one option space to another
    // pub fn map<U>(self: Self, f: fn(T) -> U) -> Option<U> {
    //     match self {
    //         Some(value) => Some(f(value)),
    //         None => None,
    //     }
    // }
}