imcontext: Add a precondition check

diff --git a/gtk/gtkimcontextsimple.c b/gtk/gtkimcontextsimple.c
index 21db7d04b3c2cfd549b224c5a15793c2042e69b9..76afa8c1eecd4a164a002055ad049e2ee248ea39 100644 (file)
--- a/gtk/gtkimcontextsimple.c
+++ b/gtk/gtkimcontextsimple.c
@@ -1320,6 +1320,7 @@ gtk_im_context_simple_add_table (GtkIMContextSimple *context_simple,
                                 int                 n_seqs)
 {
   g_return_if_fail (GTK_IS_IM_CONTEXT_SIMPLE (context_simple));
+  g_return_if_fail (max_seq_len <= GTK_MAX_COMPOSE_LEN);
 
   G_LOCK (global_tables);