Enum tangle::Async [−] [src]

pub enum Async<T, E> {
    Ok(T),
    Err(E),
    Continue(Future<T, E>),
}

Asynchronous version of Result<T, E> that allows for future composition. Additional macros are provided to work with both Async<T, E> and Result<T, E>.

Variants

`Ok`
`Err`
`Continue`

Methods

`impl<T, E> Async<T, E>`

`fn unwrap(self) -> T`

`fn map<U, F: FnOnce(T) -> U>(self, f: F) -> Async<U, E>`

`fn map_err<U, F: FnOnce(E) -> U>(self, f: F) -> Async<T, U>`

`fn is_err(&self) -> bool`

`fn is_future(&self) -> bool`

`fn is_ok(&self) -> bool`

Trait Implementations

Derived Implementations

`impl<T: Debug, E: Debug> Debug for Async<T, E>`

`fn fmt(&self, __arg_0: &mut Formatter) -> Result`