Method resume

modules/gdscript/gdscript_function.cpp:198–247

}

Variant GDScriptFunctionState::resume(const Variant &p_arg) {
	ERR_FAIL_NULL_V(function, Variant());
	{
		MutexLock lock(GDScriptLanguage::singleton->mutex);

		if (!scripts_list.in_list()) {
#ifdef DEBUG_ENABLED
			ERR_FAIL_V_MSG(Variant(), "Resumed function '" + state.function_name + "()' after await, but script is gone. At script: " + state.script_path + ":" + itos(state.line));
#else
			return Variant();
#endif
		}
		if (state.instance && !instances_list.in_list()) {
#ifdef DEBUG_ENABLED
			ERR_FAIL_V_MSG(Variant(), "Resumed function '" + state.function_name + "()' after await, but class instance is gone. At script: " + state.script_path + ":" + itos(state.line));
#else
			return Variant();
#endif
		}
		// Do these now to avoid locking again after the call
		scripts_list.remove_from_list();
		instances_list.remove_from_list();
	}

	state.result = p_arg;
	Callable::CallError err;
	Variant ret = function->call(nullptr, nullptr, 0, err, &state);

	bool completed = true;

	// If the return value is a GDScriptFunctionState reference,
	// then the function did await again after resuming.
	if (ret.is_ref_counted()) {
		GDScriptFunctionState *gdfs = Object::cast_to<GDScriptFunctionState>(ret);
		if (gdfs && gdfs->function == function) {
			completed = false;
			// Keep the first state alive via reference.
			gdfs->first_state = first_state.is_valid() ? first_state : Ref<GDScriptFunctionState>(this);
		}
	}

	function = nullptr; //cleaned up;
	state.result = Variant();

	if (completed) {
		_clear_stack();
	}

	return ret;
}

void GDScriptFunctionState::_clear_stack() {
	if (state.stack_size) {