Method get_property

core/object/class_db.cpp:1685–1742

}

bool ClassDB::get_property(Object *p_object, const StringName &p_property, Variant &r_value) {
	ERR_FAIL_NULL_V(p_object, false);

	ClassInfo *type = classes.getptr(p_object->get_class_name());
	ClassInfo *check = type;
	while (check) {
		const PropertySetGet *psg = check->property_setget.getptr(p_property);
		if (psg) {
			if (!psg->getter) {
				return true; //return true but do nothing
			}

			if (psg->index >= 0) {
				Variant index = psg->index;
				const Variant *arg[1] = { &index };
				Callable::CallError ce;
				const Variant value = p_object->callp(psg->getter, arg, 1, ce);
				r_value = (ce.error == Callable::CallError::CALL_OK) ? value : Variant();

			} else {
				Callable::CallError ce;
				if (psg->_getptr) {
					r_value = psg->_getptr->call(p_object, nullptr, 0, ce);
				} else {
					const Variant value = p_object->callp(psg->getter, nullptr, 0, ce);
					r_value = (ce.error == Callable::CallError::CALL_OK) ? value : Variant();
				}
			}
			return true;
		}

		const int64_t *c = check->constant_map.getptr(p_property); //constants count
		if (c) {
			r_value = *c;
			return true;
		}

		if (check->method_map.has(p_property)) { //methods count
			r_value = Callable(p_object, p_property);
			return true;
		}

		if (check->signal_map.has(p_property)) { //signals count
			r_value = Signal(p_object, p_property);
			return true;
		}

		check = check->inherits_ptr;
	}

	// The "free()" method is special, so we assume it exists and return a Callable.
	if (p_property == CoreStringName(free_)) {
		r_value = Callable(p_object, p_property);
		return true;
	}

	return false;
}