From: espen <espen>
Date: Fri, 12 Nov 2004 15:01:42 +0000 (+0000)
Subject: Added with-gvalue macro
X-Git-Tag: clg-0-90~200
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/clg/commitdiff_plain/7c6da9694367f069f4ae10e3fa728059cba8a3d5

Added with-gvalue macro
---

diff --git a/glib/gparam.lisp b/glib/gparam.lisp
index 028c4f9..8629d40 100644
--- a/glib/gparam.lisp
+++ b/glib/gparam.lisp
@@ -15,7 +15,7 @@
 ;; License along with this library; if not, write to the Free Software
 ;; Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
-;; $Id: gparam.lisp,v 1.9 2004/11/06 21:39:58 espen Exp $
+;; $Id: gparam.lisp,v 1.10 2004/11/12 15:01:42 espen Exp $
 
 (in-package "GLIB")
 
@@ -66,6 +66,15 @@ (defun gvalue-set (gvalue value)
    value gvalue +gvalue-value-offset+)
   value)
 
+(defmacro with-gvalue ((gvalue type &optional (value nil value-p)) &body body)
+  `(let ((,gvalue ,(if value-p
+		       `(gvalue-new ',type ,value)
+		     `(gvalue-new ',type ,value))))
+    (unwind-protect
+	 (progn
+	   ,@body
+	   ,(unless value-p `(gvalue-get ,gvalue)))
+      (gvalue-free ,gvalue))))
 
 
 (deftype param-flag-type ()