Function c_unchecked_callback_to_rust_fn

crates/c-api/src/func.rs:325–344

(
    callback: wasmtime_func_unchecked_callback_t,
    data: *mut c_void,
    finalizer: Option<extern "C" fn(*mut std::ffi::c_void)>,
)

}

pub(crate) unsafe fn c_unchecked_callback_to_rust_fn(
    callback: wasmtime_func_unchecked_callback_t,
    data: *mut c_void,
    finalizer: Option<extern "C" fn(*mut std::ffi::c_void)>,
) -> impl Fn(WasmtimeCaller<'_>, &mut [MaybeUninit<ValRaw>]) -> Result<()> {
    let foreign = crate::ForeignData { data, finalizer };
    move |caller, values| {
        let _ = &foreign; // move entire foreign into this closure
        let mut caller = wasmtime_caller_t { caller };
        match callback(
            foreign.data,
            &mut caller,
            values.as_mut_ptr().cast(),
            values.len(),
        ) {
            None => Ok(()),
            Some(trap) => Err(trap.error),
        }
    }
}

#[unsafe(no_mangle)]
pub unsafe extern "C" fn wasmtime_func_call(