Trait util::OptionExt

pub trait OptionExt: OptionExtSealed {
    type Inner;
    fn try_get_or_insert_with<E, F: FnOnce() -> Result<Self::Inner, E>>(
        &mut self, 
        f: F
    ) -> Result<&mut Self::Inner, E>;
}

Associated Types

type Inner

Required Methods

fn try_get_or_insert_with<E, F: FnOnce() -> Result<Self::Inner, E>>(
    &mut self,
    f: F
) -> Result<&mut Self::Inner, E>

Implementations on Foreign Types

impl<A> OptionExt for Option<A>

type Inner = A

fn try_get_or_insert_with<E, F: FnOnce() -> Result<A, E>>(     &mut self,     f: F ) -> Result<&mut A, E>

Implementors