[glib] gobject: Warn if someone uses the wrong property in g_object_get/set

[Benjamin Otte <otte src gnome org>]

commit 02877e29020c2a0f34283435ecf544b1f6793077
Author: Benjamin Otte <otte redhat com>
Date:   Mon May 2 19:22:25 2011 +0200

    gobject: Warn if someone uses the wrong property in g_object_get/set
    
    "Interface::property" was not detected before and led to a crash.

 gobject/gobject.c |   14 ++++++++++++++
 1 files changed, 14 insertions(+), 0 deletions(-)
---
diff --git a/gobject/gobject.c b/gobject/gobject.c
index 7fa845f..ead9071 100644
--- a/gobject/gobject.c
+++ b/gobject/gobject.c
@@ -1124,6 +1124,13 @@ object_get_property (GObject     *object,
   guint param_id = PARAM_SPEC_PARAM_ID (pspec);
   GParamSpec *redirect;
 
+  if (class == NULL)
+    {
+      g_warning ("'%s::%s' is not a valid property name; '%s' is not a GObject subtype",
+                 g_type_name (pspec->owner_type), pspec->name, g_type_name (pspec->owner_type));
+      return;
+    }
+
   redirect = g_param_spec_get_redirect_target (pspec);
   if (redirect)
     pspec = redirect;    
@@ -1143,6 +1150,13 @@ object_set_property (GObject             *object,
   GParamSpec *redirect;
   static gchar* enable_diagnostic = NULL;
 
+  if (class == NULL)
+    {
+      g_warning ("'%s::%s' is not a valid property name; '%s' is not a GObject subtype",
+                 g_type_name (pspec->owner_type), pspec->name, g_type_name (pspec->owner_type));
+      return;
+    }
+
   redirect = g_param_spec_get_redirect_target (pspec);
   if (redirect)
     pspec = redirect;