[pygobject: 1/2] Start using g_struct_info_find_field()

[Christoph Reiter <creiter src gnome org>]

commit ae7e461cc0196b34ea5ab630f967a347572290b3
Author: Christoph Reiter <reiter christoph gmail com>
Date:   Wed Dec 12 21:54:39 2018 +0100

    Start using g_struct_info_find_field()
    
    Instead of iterating over the fields ourselves. g_struct_info_find_field() was added
    for libgirepository 1.46: https://gitlab.gnome.org/GNOME/gobject-introspection/commit/cf6ea68018
    
    We now depend on 1.46 so start using it.

 gi/gimodule.c | 22 ++++++----------------
 1 file changed, 6 insertions(+), 16 deletions(-)
---
diff --git a/gi/gimodule.c b/gi/gimodule.c
index e25583e5..7ff9b0eb 100644
--- a/gi/gimodule.c
+++ b/gi/gimodule.c
@@ -1708,11 +1708,11 @@ find_vfunc_info (GIBaseInfo *vfunc_info,
                  GIFieldInfo **field_info_ret)
 {
     GType ancestor_g_type = 0;
-    int length, i;
     GIBaseInfo *ancestor_info;
     GIStructInfo *struct_info;
     gpointer implementor_class = NULL;
     gboolean is_interface = FALSE;
+    GIFieldInfo *field_info;
 
     ancestor_info = g_base_info_get_container (vfunc_info);
     is_interface = g_base_info_get_type (ancestor_info) == GI_INFO_TYPE_INTERFACE;
@@ -1743,28 +1743,18 @@ find_vfunc_info (GIBaseInfo *vfunc_info,
 
     *implementor_class_ret = implementor_class;
 
-    length = g_struct_info_get_n_fields (struct_info);
-    for (i = 0; i < length; i++) {
-        GIFieldInfo *field_info;
+    field_info = g_struct_info_find_field (struct_info,
+                                           g_base_info_get_name ( (GIBaseInfo*) vfunc_info));
+    if (field_info != NULL) {
         GITypeInfo *type_info;
 
-        field_info = g_struct_info_get_field (struct_info, i);
-
-        if (strcmp (g_base_info_get_name ( (GIBaseInfo*) field_info),
-                    g_base_info_get_name ( (GIBaseInfo*) vfunc_info)) != 0) {
-            g_base_info_unref (field_info);
-            continue;
-        }
-
         type_info = g_field_info_get_type (field_info);
         if (g_type_info_get_tag (type_info) == GI_TYPE_TAG_INTERFACE) {
-            g_base_info_unref (type_info);
             *field_info_ret = field_info;
-            break;
+        } else {
+            g_base_info_unref (field_info);
         }
-
         g_base_info_unref (type_info);
-        g_base_info_unref (field_info);
     }
 
     g_base_info_unref (struct_info);