File clutter-Warn-on-adding-removing.patch of Package clutter

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File clutter-Warn-on-adding-removing.patch of Package clutter (Revision 89bfc3ecc436415c845b8e2fa72b5ea3)

Currently displaying revision 89bfc3ecc436415c845b8e2fa72b5ea3 , Show latest

From c6e40de500534df321d2150229a16215054fce38 Mon Sep 17 00:00:00 2001
From: Emmanuele Bassi <ebassi@gnome.org>
Date: Tue, 29 Mar 2016 15:04:50 +0100
Subject: actor: Warn on adding/removing itself as a child

ClutterActor should warn if a user tries to add or remove an actor to,
and from, itself on the scene graph.

Clutter will likely crash, or warn way down the line, but if we can make
debugging simpler then we should.
---
 clutter/clutter-actor.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/clutter/clutter-actor.c b/clutter/clutter-actor.c
index d966e40..fedcbfe 100644
--- a/clutter/clutter-actor.c
+++ b/clutter/clutter-actor.c
@@ -4198,6 +4198,13 @@ clutter_actor_remove_child_internal (ClutterActor                 *self,
   gboolean stop_transitions;
   GObject *obj;
 
+  if (self == child)
+    {
+      g_warning ("Cannot remove actor '%s' from itself.",
+                 _clutter_actor_get_debug_name (self));
+      return;
+    }
+
   destroy_meta = (flags & REMOVE_CHILD_DESTROY_META) != 0;
   emit_parent_set = (flags & REMOVE_CHILD_EMIT_PARENT_SET) != 0;
   emit_actor_removed = (flags & REMOVE_CHILD_EMIT_ACTOR_REMOVED) != 0;
@@ -12777,6 +12784,13 @@ clutter_actor_add_child_internal (ClutterActor              *self,
   ClutterActor *old_first_child, *old_last_child;
   GObject *obj;
 
+  if (self == child)
+    {
+      g_warning ("Cannot add the actor '%s' to itself.",
+                  _clutter_actor_get_debug_name (self));
+      return;
+    }
+
   if (child->priv->parent != NULL)
     {
       g_warning ("The actor '%s' already has a parent, '%s'. You must "
-- 
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File clutter-Warn-on-adding-removing.patch of Package clutter (Revision 89bfc3ecc436415c845b8e2fa72b5ea3)

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