Raise TypeError if arguments are passed to Boxed.__init__

This is a partial revert of
https://git.gnome.org/browse/pygobject/commit/?id=2f2069c9efcd8
which removed a type check in __new__. This adds it back
into __init__. Overrides which define __new__ now have to
filter out any arguments in __init__ and not the other way
around, which is a bit less surprising in the common case.

https://bugzilla.gnome.org/show_bug.cgi?id=727810

1 files changed, 6 insertions, 0 deletions

diff --git a/gi/pygi-boxed.c b/gi/pygi-boxed.c
index 06324fdb..c52858bb 100644
--- a/gi/pygi-boxed.c
+++ b/gi/pygi-boxed.c
@@ -123,6 +123,12 @@ _boxed_init (PyObject *self,
              PyObject *args,
              PyObject *kwargs)
 {
+    static char *kwlist[] = { NULL };
+
+    if (!PyArg_ParseTupleAndKeywords (args, kwargs, "", kwlist)) {
+        return -1;
+    }
+
     /* Don't call PyGBoxed's init, which raises an exception. */
     return 0;
 }