Trait AsyncFn

pub trait AsyncFn<Args>: AsyncFnMut<Args>
where
    Args: Tuple,
{
    // Required method
    extern "rust-call" fn async_call(
        &self,
        args: Args,
    ) -> Self::CallRefFuture<'_>;
}

🔬This is a nightly-only experimental API. (async_closure #62290)

An async-aware version of the Fn trait.

All async fn and functions returning futures implement this trait.

Required Methods

extern "rust-call" fn async_call( &self, args: Args, ) -> Self::CallRefFuture<'_>

🔬This is a nightly-only experimental API. (async_fn_traits)

Call the AsyncFn, returning a future which may borrow from the called closure.

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.

Implementors

impl<A, F> AsyncFn<A> for &F

where A: Tuple, F: AsyncFn<A> + ?Sized,

impl<Args, F, A> AsyncFn<Args> for Box<F, A>

where Args: Tuple, F: AsyncFn<Args> + ?Sized, A: Allocator,