Function mun_runtime_find_function_definition 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn mun_runtime_find_function_definition(
    runtime: Runtime,
    fn_name: *const c_char,
    fn_name_len: usize,
    has_fn_info: *mut bool,
    fn_info: *mut Function,
) -> ErrorHandle

Retrieves the FunctionDefinition for fn_name from the runtime. If successful, has_fn_info and fn_info are set, otherwise a non-zero error handle is returned.

If a non-zero error handle is returned, it must be manually destructed using [mun_error_destroy].

Safety

This function receives raw pointers as parameters. If any of the arguments is a null pointer, an error will be returned. Passing pointers to invalid data, will lead to undefined behavior.