message: fix(runtime-c-api) `wasmer_instance_context_data_get` returns `void` if `instance` is null.
diff: @@ -469,13 +469,25 @@ pub extern "C" fn wasmer_instance_context_memory(
  memory as *const Memory as *const wasmer_memory_t
  }
  -/// Gets the `data` field within the context.
  +/// Gets the data that can be hold by an instance.
  +///
  +/// This function is complementary of
  +/// `wasmer_instance_context_data_set()`. Please read its
  +/// documentation. You can also read the documentation of
  +/// `wasmer_instance_context_t` to get other examples.
  +///
  +/// This function returns nothing if `ctx` is a null pointer.
  #[allow(clippy::cast_ptr_alignment)]
  #[no_mangle]
  pub extern "C" fn wasmer_instance_context_data_get(
  ctx: *const wasmer_instance_context_t,
  ) -> *mut c_void {
  + if ctx.is_null() {
  + return ptr::null_mut() as _;
  + }
  +
  let ctx = unsafe { &*(ctx as *const Ctx) };
  +
  ctx.data
  }
  