Trait OptionExt 

pub trait OptionExt<T> {
    // Required method
    fn map_async<F, Fut, U>(self, f: F) -> OptionFuture<Fut>
       where F: FnOnce(T) -> Fut,
             Fut: Future<Output = U> + Send,
             U: Send;

    // Provided method
    fn map_stream<F, Fut, U>(self, f: F) -> impl Stream<Item = U> + Send
       where F: FnOnce(T) -> Fut,
             Fut: Future<Output = U> + Send,
             U: Send,
             Self: Sized { ... }
}

Required Methods

fn map_async<F, Fut, U>(self, f: F) -> OptionFuture<Fut>

where F: FnOnce(T) -> Fut, Fut: Future<Output = U> + Send, U: Send,

Provided Methods

fn map_stream<F, Fut, U>(self, f: F) -> impl Stream<Item = U> + Send

where F: FnOnce(T) -> Fut, Fut: Future<Output = U> + Send, U: Send, Self: Sized,

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl<T> OptionExt<T> for Option<T>

fn map_async<F, Fut, U>(self, f: F) -> OptionFuture<Fut>

where F: FnOnce(T) -> Fut, Fut: Future<Output = U> + Send, U: Send,

Implementors