Re: PATCH: G_DEFINE_INTERFACE_TYPE macro

[Tiago Cogumbreiro <cogumbreiro linus uac pt>]

I've added support for class_init in the macro (pointed out by Owen).
On Wed, 2004-08-25 at 15:42, Tiago Cogumbreiro wrote:
> After some suggestions on #gtk+ I've made some changes to the macro
> definition, hope it's better now :)
> 
> On Wed, 2004-08-25 at 15:26, Tiago Cogumbreiro wrote:
> > I've implemented a macro that i find it to be missing to the
> > G_DEFINE_*_TYPE: G_DEFINE_INTERFACE_TYPE
> > 
> > As the name infers it's supposed to define the get_type function which
> > defines an interface.
> > 
> > 
> > ______________________________________________________________________
> > _______________________________________________
> > gtk-devel-list mailing list
> > gtk-devel-list gnome org
> > http://mail.gnome.org/mailman/listinfo/gtk-devel-list
> 
> ______________________________________________________________________
> _______________________________________________
> gtk-devel-list mailing list
> gtk-devel-list gnome org
> http://mail.gnome.org/mailman/listinfo/gtk-devel-list

--- /home/tiago/Downloads/gtype.h	2004-08-25 14:49:54.201027072 +0000
+++ gtype.h	2004-08-25 15:54:14.263208424 +0000
@@ -344,6 +344,29 @@ gpointer g_type_instance_get_private    
   }; \
   g_type_add_interface_static (g_define_type_id, TYPE_IFACE, &g_implement_interface_info); \
 }
+/*
+ * Convenience macro to ease the interface definition. Works like G_DEFINE_TYPE.
+ */
+#define G_DEFINE_INTERFACE_TYPE(TypeName, type_name, CODE) \
+static void     type_name##_class_init        (TypeName##Class *klass); \
+\
+GType \
+type_name##_get_type (void) \
+{ \
+  static GType g_define_type_id = 0; \
+  if (G_UNLIKELY (g_define_type_id == 0)) \
+    { \
+      static const GTypeInfo g_define_type_info = { \
+        sizeof (TypeName##Class), \
+        (GBaseInitFunc) NULL, \
+        (GBaseFinalizeFunc) NULL, \
+        (GClassInitFunc) type_name##_class_init, \
+      }; \
+      g_define_type_id = g_type_register_static (G_TYPE_INTERFACE, #TypeName, &g_define_type_info, 0); \
+    } \
+    { CODE ;} \
+  return g_define_type_id; \
+}
 
 #define G_DEFINE_TYPE_EXTENDED(TypeName, type_name, TYPE_PARENT, flags, CODE) \
 \