a11y: Different value types cannot be equal

Bail out early, instead of going deep into the GtkAccessibleValue type
equal() implementation, where we expect both accessible values to have
the same type.

diff --git a/gtk/gtkaccessiblevalue.c b/gtk/gtkaccessiblevalue.c
index 5ea1db0488a6857a2bc34c534d8c9dd0a37415b6..2cefba0bc43c9fe6027de8b9239c5a7ae516a521 100644 (file)
--- a/gtk/gtkaccessiblevalue.c
+++ b/gtk/gtkaccessiblevalue.c
@@ -185,6 +185,9 @@ gtk_accessible_value_equal (const GtkAccessibleValue *value_a,
   if (value_a == NULL || value_b == NULL)
     return FALSE;
 
+  if (value_a->value_class != value_b->value_class)
+    return FALSE;
+
   if (value_a->value_class->equal == NULL)
     return FALSE;