Trait resiter::flat_map::FlatMap

pub trait FlatMap<O, E>: Sized {
    fn flat_map_ok<U, F, O2>(self, _: F) -> FlatMapOk<Self, U, F> 
    where
        F: FnMut(O) -> U,
        U: IntoIterator<Item = O2>;
    fn flat_map_err<U, F, E2>(self, _: F) -> FlatMapErr<Self, U, F> 
    where
        F: FnMut(E) -> U,
        U: IntoIterator<Item = E2>;
}

Extension trait for Iterator<Item = Result<O, E>> to selectively transform Oks and Errors.

Required Methods

fn flat_map_ok<U, F, O2>(self, _: F) -> FlatMapOk<Self, U, F> where
    F: FnMut(O) -> U,
    U: IntoIterator<Item = O2>,

fn flat_map_err<U, F, E2>(self, _: F) -> FlatMapErr<Self, U, F> where
    F: FnMut(E) -> U,
    U: IntoIterator<Item = E2>,

Implementors

impl<I, O, E> FlatMap<O, E> for Iwhere
    I: Iterator<Item = Result<O, E>> + Sized,