diff options
Diffstat (limited to 'filter/filter-arg.c')
| -rw-r--r-- | filter/filter-arg.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/filter/filter-arg.c b/filter/filter-arg.c index 44dc90471e..55bc09c6a0 100644 --- a/filter/filter-arg.c +++ b/filter/filter-arg.c @@ -135,6 +135,8 @@ filter_arg_new (char *name) void filter_arg_add(FilterArg *arg, void *v) { + g_return_if_fail(v != NULL); + arg->values = g_list_append(arg->values, v); gtk_signal_emit(GTK_OBJECT(arg), signals[CHANGED]); } @@ -160,7 +162,12 @@ filter_arg_write_text(FilterArg *arg, GString *string) void filter_arg_edit_values(FilterArg *arg) { - ((FilterArgClass *)(arg->object.klass))->edit_values(arg); + g_return_if_fail(arg != NULL); + + if (((FilterArgClass *)(arg->object.klass))->edit_values) + ((FilterArgClass *)(arg->object.klass))->edit_values(arg); + else + g_warning("No implementation of virtual method edit_values"); } xmlNodePtr |