From 3d1e2a055897287cb59b3969e0742d5c7d03f003 Mon Sep 17 00:00:00 2001
From: Benjamin Otte <otte@redhat.com>
Date: Sun, 22 Feb 2015 18:04:43 +0100
Subject: cssstyle: Add optimization

There is no difference between a style and itself.
---
 gtk/gtkcssstyle.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'gtk/gtkcssstyle.c')

diff --git a/gtk/gtkcssstyle.c b/gtk/gtkcssstyle.c
index 040998b6cb..084919159e 100644
--- a/gtk/gtkcssstyle.c
+++ b/gtk/gtkcssstyle.c
@@ -82,6 +82,9 @@ gtk_css_style_get_difference (GtkCssStyle *style,
   GtkBitmask *result;
   guint i, len;
 
+  if (style == other)
+    return _gtk_bitmask_new ();
+
   result = _gtk_bitmask_new ();
   len = _gtk_css_style_property_get_n_properties ();
   for (i = 0; i < len; i++)
-- 
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