Trait tracing_core::stdlib::ops::AsyncFnMut

pub trait AsyncFnMut<Args>: AsyncFnOnce<Args>
where
    Args: Tuple,
{
    type CallRefFuture<'a>: Future<Output = Self::Output>
       where Self: 'a;

    // Required method
    extern "rust-call" fn async_call_mut(
        &mut self,
        args: Args,
    ) -> Self::CallRefFuture<'_>;
}

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

An async-aware version of the FnMut trait.

All async fn and functions returning futures implement this trait.

Required Associated Types

type CallRefFuture<'a>: Future<Output = Self::Output> where Self: 'a

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

Future returned by AsyncFnMut::async_call_mut and AsyncFn::async_call.

Required Methods

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

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

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

Object Safety

This trait is not object safe.

Implementors

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

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

type CallRefFuture<'a> = <F as AsyncFnMut<A>>::CallRefFuture<'a> where &F: 'a

impl<A, F> AsyncFnMut<A> for &mut F

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

type CallRefFuture<'a> = <F as AsyncFnMut<A>>::CallRefFuture<'a> where &mut F: 'a

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

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

type CallRefFuture<'a> = <F as AsyncFnMut<Args>>::CallRefFuture<'a> where Box<F, A>: 'a