AsyncFnMut in std::ops - Rust (original) (raw)

Trait AsyncFnMut

1.85.0 · Source

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<'_>;
}

Expand description

An async-aware version of the FnMut trait.

All async fn and functions returning futures implement this trait.

Source

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

Source

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

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

This trait is not dyn compatible.

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