Struct Maybe 

pub struct Maybe<A>(pub A);

Tuple Fields

0: A

Trait Implementations

impl<A: Clone> Clone for Maybe<A>

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

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a, A> Parser<'a> for Maybe<A>

where A: Parser<'a>,

type Out = Option<<A as Parser<'a>>::Out>

fn parse(&self, i: &PIter<'a>) -> ParseRes<'a, Self::Out>

fn parse_s(&self, s: &'a str) -> Result<Self::Out, PErr<'a>>

fn or<B: Parser<'a, Out = Self::Out>>(self, b: B) -> Or<Self, B>

fn br(&self) -> BRP<'_, Self>

Borrowed Parser

fn asv<V: Clone>(self, v: V) -> Asv<Self, V>

fn map<B, F: Fn(Self::Out) -> B>(self, f: F) -> Map<Self, F>

fn try_map<B, F: Fn(Self::Out) -> Result<B, Expected>>( self, f: F, ) -> TryMap<Self, F>

fn ig(self) -> Ig<Self>

fn brk(self) -> Break<Self>