Re: Naming question (was: [Pyobjc-dev] Cocoa Sheets)
Brought to you by:
ronaldoussoren
From: Jack J. <Jac...@cw...> - 2003-06-12 20:15:54
|
On woensdag, jun 11, 2003, at 21:34 Europe/Amsterdam, Bill Bumgarner wrote: > On Wednesday, Jun 11, 2003, at 15:31 US/Eastern, Ronald Oussoren wrote: >> We could warn about the signatures when one of the beginSheet methods >> is called (better yet, make it an error when the signature is not >> correct). How many of such callback API's are there, is it just >> sheets or are there other API's that do callbacks to aritrary methods >> with a 'difficult' signature? > > There aren't many, but that set may change over time... and, > certainly, third parties can (and have) modeled their class design > after Apple's. All the potential problem cases would be where a selector is passed from Python to ObjC, right? Could we implement a mechanism (in the C code) where all selectors can optionally be checked for correct signature if a Python method is passed, and then expose a call to Python where you can turn this check on? We then use this call to tell pyobjc "By the way, the selector passed as the Nth parameter to beginSheet_bla_bla_bla should have signature bla bla bla". Third parties could add this call too. The only problem (and a big problem, at least I don't see a simple solution, but maybe someone else does) is how to refer to "the selector passed as the Nth parameter to beginSheet_bla_bla_bla". -- - Jack Jansen <Jac...@or...> http://www.cwi.nl/~jack - - If I can't dance I don't want to be part of your revolution -- Emma Goldman - |