[pygobject] Avoid O(n^2) behavior when marshalling lists

[Paolo Borelli <pborelli src gnome org>]

commit 2bee4207ab6f07dc9c0952affe72f0e304cfb624
Author: Paolo Borelli <pborelli gnome org>
Date:   Wed Jan 4 15:24:13 2012 +0100

    Avoid O(n^2) behavior when marshalling lists
    
    Appending requires walking the list every time: just prepend and reverse
    the list at the end.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=667261

 gi/pygi-marshal-from-py.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/gi/pygi-marshal-from-py.c b/gi/pygi-marshal-from-py.c
index 3b3109c..4de874b 100644
--- a/gi/pygi-marshal-from-py.c
+++ b/gi/pygi-marshal-from-py.c
@@ -959,7 +959,7 @@ _pygi_marshal_from_py_glist (PyGIInvokeState   *state,
                                  &item))
             goto err;
 
-        list_ = g_list_append (list_, item.v_pointer);
+        list_ = g_list_prepend (list_, item.v_pointer);
         continue;
 err:
         /* FIXME: clean up list
@@ -972,7 +972,7 @@ err:
         return FALSE;
     }
 
-    arg->v_pointer = list_;
+    arg->v_pointer = g_list_reverse (list_);
     return TRUE;
 }
 
@@ -1026,7 +1026,7 @@ _pygi_marshal_from_py_gslist (PyGIInvokeState   *state,
                             &item))
             goto err;
 
-        list_ = g_slist_append (list_, item.v_pointer);
+        list_ = g_slist_prepend (list_, item.v_pointer);
         continue;
 err:
         /* FIXME: Clean up list
@@ -1040,7 +1040,7 @@ err:
         return FALSE;
     }
 
-    arg->v_pointer = list_;
+    arg->v_pointer = g_slist_reverse (list_);
     return TRUE;
 }