check error in notify

2015-08-08 12:41:13 +03:00
parent 65379235dd
commit e2ac290abd
1 changed files with 2 additions and 0 deletions
@@ -82,6 +82,8 @@ class BindSignalProvider implements IBindingSignalProvider {
                    Context.error("method notify doesn't require newValue", newValue.pos);
                [];
            case FVar(_, _):
+                if (oldValue.isNullOrEmpty() && newValue.isNullOrEmpty())
+                    Context.error("method notify require oldValue and newValue", oldValue.pos);
                [oldValue, newValue];
        }
        return dispatchSignal(expr, field.name, args, hasLazy(field.bindableMeta()));