;; TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
;; SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-;; $Id: gparam.lisp,v 1.24 2007-06-01 06:18:59 espen Exp $
+;; $Id: gparam.lisp,v 1.25 2007-07-03 08:43:21 espen Exp $
(in-package "GLIB")
(let ((parent (type-parent type)))
(unless (zerop parent)
(find-most-specific-known-type parent))))))
- (or
- (find-most-specific-known-type (ref-type-number gvalue))
- ;; This will signal an error if the type hierarchy is unknown
- (type-from-number (ref-type-number gvalue) t))))
+ (let ((type-number (ref-type-number gvalue)))
+ (unless (zerop type-number)
+ (or
+ (find-most-specific-known-type type-number)
+ ;; This will signal an error if the type hierarchy is unknown
+ (type-from-number type-number t))))))
(defun gvalue-get (gvalue)
(funcall (reader-function (gvalue-type gvalue))