cssnode: Delay getting the parent style until we need it

There's an early return before.

Look at all those saved cycles.

diff --git a/gtk/gtkcssnode.c b/gtk/gtkcssnode.c
index 94139cd51028b2ef270c40834b98275390cba05c..95a687ffacc7df2d23413441678da1d58df41946 100644 (file)
--- a/gtk/gtkcssnode.c
+++ b/gtk/gtkcssnode.c
@@ -361,12 +361,13 @@ gtk_css_node_create_style (GtkCssNode *cssnode)
   GtkCssStyle *style;
 
   decl = gtk_css_node_get_declaration (cssnode);
-  parent = cssnode->parent ? cssnode->parent->style : NULL;
 
   style = lookup_in_global_parent_cache (cssnode, decl);
   if (style)
     return g_object_ref (style);
 
+  parent = cssnode->parent ? cssnode->parent->style : NULL;
+
   if (gtk_css_node_init_matcher (cssnode, &matcher))
     style = gtk_css_static_style_new_compute (gtk_css_node_get_style_provider (cssnode),
                                               &matcher,