Re: [Pyobjc-dev] Re: [Pythonmac-SIG] pyobjc / cocoa
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From: <bb...@ma...> - 2002-10-16 22:16:01
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On Wednesday, October 16, 2002, at 06:10 PM, Bob Ippolito wrote: > It's not. Though, I can see how it'd be kinda useful in strange cases > to have the "rt.call" function around. Definitely useful! In particular, if we had an objc_msgSend() equivalent available on the Python side of the bridge, it opens things up for some truly tremendous opportunities. (If you know ahead of time the type and number of arguments -- which you would given that the call is coming from Python -- then NSInvocation can be used to build a stack frame and, as such, could be used to implement a solution -- slightly inefficient, but a solution none-the-less) With objc_msgSend() around, you could do something like... objc.msgSend(Foundation.NSString, "stringWithFormat:", "Foo %d Bar %5.3f Baz %s", 10, 25.3, "bob") That is, you could call the handful of varargs methods in the various 'kits. But, more importantly, it means that you could programmatically dispatch methods from the python side using standard idioms -- something that *can* be done now, but not without a bit of pain. b.bum |