Function function_callback

src/gdsqlite.cpp:778–860

}

static void function_callback(sqlite3_context *context, int argc, sqlite3_value **argv) {
	void *temp = sqlite3_user_data(context);
	Callable callable = *(Callable *)temp;

	/* Check if the callable is valid */
	if (!callable.is_valid()) {
		ERR_PRINT("GDSQLite Error: Supplied function reference is invalid! Aborting callback...");
		return;
	}

	Array argument_array = Array();
	Variant argument_value;
	for (int i = 0; i <= argc - 1; i++) {
		sqlite3_value *value = *argv;
		/* Check the value type and do correct casting */
		switch (sqlite3_value_type(value)) {
			case SQLITE_INTEGER:
				argument_value = Variant((int64_t)sqlite3_value_int64(value));
				break;

			case SQLITE_FLOAT:
				argument_value = Variant(sqlite3_value_double(value));
				break;

			case SQLITE_TEXT:
				argument_value = Variant((char *)sqlite3_value_text(value));
				break;

			case SQLITE_BLOB: {
				int bytes = sqlite3_value_bytes(value);
				PackedByteArray arr = PackedByteArray();
				arr.resize(bytes);
				memcpy((void *)arr.ptrw(), (char *)sqlite3_value_blob(value), bytes);
				argument_value = arr;
				break;
			}

			case SQLITE_NULL:
				break;

			default:
				break;
		}

		argument_array.append(argument_value);
		argv += 1;
	}

	Variant output = callable.callv(argument_array);

	switch (output.get_type()) {
		case Variant::NIL:
			sqlite3_result_null(context);
			break;

		case Variant::BOOL:
		case Variant::INT:
			sqlite3_result_int64(context, int64_t(output));