vala: Report error for error-domains without any code

diff --git a/vala/valaerrordomain.vala b/vala/valaerrordomain.vala
index 1c63e51f39befdff4266723cefd4f752198fa92f..c0e92e70e69bbcf07d5fce3a24ebd30a9e646a10 100644 (file)
--- a/vala/valaerrordomain.vala
+++ b/vala/valaerrordomain.vala
@@ -114,6 +114,12 @@ public class Vala.ErrorDomain : TypeSymbol {
 
                checked = true;
 
+               if (codes.size <= 0) {
+                       Report.error (source_reference, "Error domain `%s' requires at least one code".printf (get_full_name ()));
+                       error = true;
+                       return false;
+               }
+
                foreach (ErrorCode ecode in codes) {
                        ecode.check (context);
                }