X-Git-Url: https://git.distorted.org.uk/~mdw/clg/blobdiff_plain/23e9322758a58525e968a6d94e9a3bf837b3473d..cd794aac76c990da71b3361e6333d3f7857d0946:/glib/gforeign.lisp

diff --git a/glib/gforeign.lisp b/glib/gforeign.lisp
index d883e7a..48cd686 100644
--- a/glib/gforeign.lisp
+++ b/glib/gforeign.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: gforeign.lisp,v 1.10 2001/05/31 21:52:15 espen Exp $
+;; $Id: gforeign.lisp,v 1.13 2002/03/19 17:03:42 espen Exp $
 
 (in-package "GLIB")
 
@@ -53,9 +53,9 @@
 
 (defun find-applicable-type-method (type-spec fname &optional (error t))
   (flet ((find-superclass-method (class)
-	   (when class
-  	     (unless (class-finalized-p class)		   
-	       (finalize-inheritance class))
+	   (when (and class (class-finalized-p class))
+;  	     (unless (class-finalized-p class)
+;	       (finalize-inheritance class))
 	     (dolist (super (cdr (pcl::class-precedence-list class)))
 	       (return-if (find-type-method super fname)))))
 	 (find-expanded-type-method (type-spec)
@@ -346,6 +346,7 @@
     (let ((alien-funcall `(alien-funcall ,lisp-name ,@(alien-parameters))))
       `(defun ,lisp-name ,lambda-list
 	 ,@docs
+	 (declare (optimize (ext:inhibit-warnings 3)))
 	 (with-alien ((,lisp-name
 		       (function
 			,(translate-type-spec return-type-spec)
@@ -363,18 +364,20 @@
 		 (values ,@(alien-values)))))))))
 
 
-(defun mkbinding (name rettype &rest types)
-  (declare (optimize (ext:inhibit-warnings 3)))
-  (let* ((ftype
-	  `(function ,@(mapcar #'translate-type-spec (cons rettype types))))
+(defun mkbinding (name return-type &rest arg-types)
+   (declare (optimize (ext:inhibit-warnings 3)))
+   (let* ((ftype
+	   `(function
+	     ,@(mapcar #'translate-type-spec (cons return-type arg-types))))
 	 (alien
 	  (alien::%heap-alien
 	   (alien::make-heap-alien-info
 	    :type (alien::parse-alien-type ftype)
 	    :sap-form (system:foreign-symbol-address name))))
-	 (translate-arguments (mapcar #'intern-return-value-translator types))
-	 (translate-return-value (intern-return-value-translator rettype))
-	 (cleanup-arguments (mapcar #'intern-cleanup-function types)))
+	 (translate-arguments
+	  (mapcar #'intern-return-value-translator arg-types))
+	 (translate-return-value (intern-return-value-translator return-type))
+	 (cleanup-arguments (mapcar #'intern-cleanup-function arg-types)))
 	 
     #'(lambda (&rest args)
 	(map-into args #'funcall translate-arguments args)
@@ -384,6 +387,29 @@
 	  (mapc #'funcall cleanup-arguments args)))))
 
 
+(defun type-translateable-p (type-spec)
+  (find-applicable-type-method type-spec 'translate-type-spec nil))
+
+(defun every-type-translateable-p (type-specs)
+  (every #'type-translateable-p type-specs))
+
+(defun mkbinding-late (name return-type &rest arg-types)
+  (if (every-type-translateable-p (cons return-type arg-types))
+      (apply #'mkbinding name return-type arg-types)
+    (let ((binding nil))
+      #'(lambda (&rest args)
+	  (cond
+	   (binding (apply binding args))
+	   ((every-type-translateable-p (cons return-type arg-types))
+	    (setq binding (apply #'mkbinding name return-type arg-types))
+	    (apply binding args))
+	   (t
+	    (dolist (type-spec (cons return-type arg-types))
+	      (unless (type-translateable-p type-spec)
+		(error "Can't translate type ~A" type-spec)))))))))
+
+  
+
 ;;;; Definitons and translations of fundamental types
 
 (deftype long (&optional (min '*) (max '*)) `(integer ,min ,max))