Function do_func_call_async

crates/c-api/src/async.rs:223–246

(
    #[cfg(feature = "gc")] mut store: wasmtime::RootScope<WasmtimeStoreContextMut<'_>>,
    #[cfg(not(feature = "gc"))] mut store: WasmtimeStoreContextMut<'_>,
    func: &Func,
    args: impl ExactS

}

async fn do_func_call_async(
    #[cfg(feature = "gc")] mut store: wasmtime::RootScope<WasmtimeStoreContextMut<'_>>,
    #[cfg(not(feature = "gc"))] mut store: WasmtimeStoreContextMut<'_>,
    func: &Func,
    args: impl ExactSizeIterator<Item = Val>,
    results: &mut [MaybeUninit<wasmtime_val_t>],
    trap_ret: &mut *mut wasm_trap_t,
    err_ret: &mut *mut wasmtime_error_t,
) {
    let mut params = mem::take(&mut store.as_context_mut().data_mut().wasm_val_storage);
    let (wt_params, wt_results) = translate_args(&mut params, args, results.len());
    let result = func.call_async(&mut store, wt_params, wt_results).await;

    match result {
        Ok(()) => {
            for (slot, val) in results.iter_mut().zip(wt_results.iter()) {
                crate::initialize(slot, wasmtime_val_t::from_val(&mut store, *val));
            }
            params.truncate(0);
            store.as_context_mut().data_mut().wasm_val_storage = params;
        }
        Err(err) => handle_call_error(err, trap_ret, err_ret),
    }
}

#[unsafe(no_mangle)]
pub unsafe extern "C" fn wasmtime_func_call_async<'a>(