vala: Prevent possible stack-overflow in Class.is_subtype_of()

diff --git a/vala/valaclass.vala b/vala/valaclass.vala
index d5288a757d8031218d578c276b466619c62ab1bb..586fe287f86a6a23d33260404fdc38a6b6272b84 100644 (file)
--- a/vala/valaclass.vala
+++ b/vala/valaclass.vala
@@ -454,7 +454,8 @@ public class Vala.Class : ObjectTypeSymbol {
                }
 
                foreach (DataType base_type in base_types) {
-                       if (base_type.type_symbol != null && base_type.type_symbol.is_subtype_of (t)) {
+                       if (base_type.type_symbol != null && base_type.type_symbol != this
+                           && base_type.type_symbol.is_subtype_of (t)) {
                                return true;
                        }
                }