[glib/gvariant] gvariant: two minor error reporting improvements

[Tim-Philipp Müller <tpm src gnome org>]

commit 62c51470d6ab544edbde5b4e8de0d946f1410828
Author: Tim-Philipp Müller <tim centricular net>
Date:   Wed Jun 17 10:20:55 2009 +0100

    gvariant: two minor error reporting improvements
    
    Print some more information when we fail.

 glib/gvariant-util.c   |    3 ++-
 glib/gvariant-valist.c |    3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)
---
diff --git a/glib/gvariant-util.c b/glib/gvariant-util.c
index 7e374ac..3b4e224 100644
--- a/glib/gvariant-util.c
+++ b/glib/gvariant-util.c
@@ -1402,7 +1402,8 @@ g_variant_builder_check_add (GVariantBuilder     *builder,
       type_str = g_variant_type_dup_string (type);
       g_set_error (error, G_VARIANT_BUILDER_ERROR,
                    G_VARIANT_BUILDER_ERROR_TYPE,
-                   "type '%s' is not in the correct class", type_str);
+                   "type '%s' is not in the correct class, expected '%c'",
+                   type_str, class);
       g_free (type_str);
       return FALSE;
     }
diff --git a/glib/gvariant-valist.c b/glib/gvariant-valist.c
index daec123..c212cdf 100644
--- a/glib/gvariant-valist.c
+++ b/glib/gvariant-valist.c
@@ -1410,7 +1410,8 @@ g_variant_builder_add (GVariantBuilder *builder,
 
   va_start (ap, format_string);
   variant = g_variant_new_va (NULL, &format_string, &ap);
-  g_assert (*format_string == '\0');
+  if (*format_string != '\0')
+    g_error ("Unhandled format string args: %s", format_string);
   va_end (ap);
 
   g_variant_builder_add_value (builder, variant);