Struct fp_rust::maybe::Maybe

pub struct Maybe<T> { /* fields omitted */ }

Methods

impl<T> Maybe<T>

pub fn just(r: Option<T>) -> Maybe<T>

pub fn of(r: Option<T>) -> Maybe<T>

pub fn val(r: T) -> Maybe<T>

pub fn present(&self) -> bool

pub fn null(&self) -> bool

pub fn let_do<F>(&self, func: F) where     F: FnOnce(&T),

pub fn fmap<F, G>(self, func: F) -> Maybe<G> where     F: FnOnce(Option<T>) -> Maybe<G>,

pub fn map<F, G>(self, func: F) -> Maybe<G> where     F: FnOnce(Option<T>) -> Option<G>,

pub fn bind<F, G>(self, func: F) -> Maybe<G> where     F: FnOnce(Option<T>) -> Option<G>,

pub fn then<F, G>(self, func: F) -> Maybe<G> where     F: FnOnce(Option<T>) -> Option<G>,

pub fn chain<F, G>(self, func: F) -> Maybe<G> where     F: FnOnce(Option<T>) -> Maybe<G>,

pub fn ap<F, G>(self, maybe_func: Maybe<F>) -> Maybe<G> where     F: FnOnce(Option<T>) -> Option<G>,

pub fn option(self) -> Option<T>

pub fn unwrap(self) -> T

pub fn or(self, val: T) -> T

Trait Implementations

impl<T: Clone> Clone for Maybe<T>

fn clone(&self) -> Maybe<T>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.