[vala] Do not install GObject properties for D-Bus interfaces

[Jürg Billeter <juergbi src gnome org>]

commit 6608153f85d671eca275a31fe01180c901d85be4
Author: Jürg Billeter <j bitron ch>
Date:   Sat Jan 8 16:49:46 2011 +0100

    Do not install GObject properties for D-Bus interfaces
    
    They were never properly implemented in the proxy classes. Latest GLib
    release prints critical warnings due to the missing implementation.

 codegen/valagobjectmodule.vala |   16 +++++++++-------
 1 files changed, 9 insertions(+), 7 deletions(-)
---
diff --git a/codegen/valagobjectmodule.vala b/codegen/valagobjectmodule.vala
index 2eadee5..2159941 100644
--- a/codegen/valagobjectmodule.vala
+++ b/codegen/valagobjectmodule.vala
@@ -1,6 +1,6 @@
 /* valagobjectmodule.vala
  *
- * Copyright (C) 2006-2010  Jürg Billeter
+ * Copyright (C) 2006-2011  Jürg Billeter
  * Copyright (C) 2006-2008  Raffaele Sandrini
  *
  * This library is free software; you can redistribute it and/or
@@ -720,12 +720,9 @@ public class Vala.GObjectModule : GTypeModule {
 			return false;
 		}
 
-		if (prop.base_interface_property != null) {
-			var iface = (Interface) prop.base_interface_property.parent_symbol;
-			if (!iface.is_subtype_of (gobject_type)) {
-				// implementing non-GObject property
-				return false;
-			}
+		if (type_sym is Class && prop.base_interface_property != null &&
+		    !is_gobject_property (prop.base_interface_property)) {
+			return false;
 		}
 
 		if (!prop.name[0].isalpha ()) {
@@ -733,6 +730,11 @@ public class Vala.GObjectModule : GTypeModule {
 			return false;
 		}
 
+		if (type_sym is Interface && type_sym.get_attribute ("DBus") != null) {
+			// GObject properties not currently supported in D-Bus interfaces
+			return false;
+		}
+
 		return true;
 	}