[Pyobjc-dev] Problems implementing a protocol

[Mani G. <ma...@tu...>]

Hello,

This may or may not be a bridge bug, but either way I'll post it here
and hopefully someone will be able to help.

I am implementing a Python class (note: not a subclass of NSObject)
that fulfills the ISyncSessionDriverDataSource protocol
(http://developer.apple.com/mac/library/DOCUMENTATION/Cocoa/Reference/ISyncSessionDriverDataSource_Protocol/Reference/Reference.html).

With this implementation passed in to the session driver, I've
confirmed that functions in my class returning various Cocoa objects
(NSDictionary, NSArray, NSURL) are being invoked and handled
correctly.

However, I am stuck on the preferredSyncModeForEntityName_()
implementation. It is supposed to return type ISyncSessionDriverMode
(http://developer.apple.com/mac/library/DOCUMENTATION/Cocoa/Reference/ISyncSessionDriverDataSource_Protocol/Reference/Reference.html#//apple_ref/doc/c_ref/ISyncSessionDriverMode),
an enum.

My code simply returns an enum value:

    def preferredSyncModeForEntityName_(self, entity):
        logging.debug('DRIVER requesting preferred sync mode')
        if self.refresh is True:
            logging.debug('returning ' + str(ISyncSessionDriverModeRefresh))
            return ISyncSessionDriverModeRefresh
        else:
            logging.debug('returning '+ str(ISyncSessionDriverModeFast))
            return ISyncSessionDriverModeFast

>From my understanding of both the documentation and the way PyObjC
works, the above should just work, right? However it doesnt:

2010-02-19 13:29:46,908 DEBUG
SyncDataSource.preferredSyncModeForEntityName_: DRIVER requesting
preferred sync mode
2010-02-19 13:29:46,908 DEBUG
SyncDataSource.preferredSyncModeForEntityName_: returning 1
ISyncSessionDriverDataSource <SyncDataSource.SyncDataSource object at
0x27ae070> responded poorly to preferredSyncModeForEntityName: with
entity com.apple.calendars.Attendee

Any ideas what could be wrong here? I have tried all of the enum
values just to see if there's something wrong with my logic, but they
all return the same error. This leads me to think that
ISyncSessionDriver is not happy with the integer format used to return
this enum value. Or maybe I'm just missing something obvious?

Any help greatly appreciated!

(OS X 10.5.8, standard system PyObjC installation: 2.0)

Regards,
Mani