Can one extend CoreFoundation using Obj-C?
Can one extend CoreFoundation using Obj-C?
- Subject: Can one extend CoreFoundation using Obj-C?
- From: Brian Cave <email@hidden>
- Date: Sun, 29 Jul 2001 13:20:16 -0500
I would like to add a few new CoreFoundation data types for some common
code. I explicitly want to have CFRetain() / CFRelease() /
CFGetTypeID() calls work. The Docs on "Toll-Free Bridging" hint that I
might be able to do this (they say that CoreFoundation objects can be
swapped with Cocoa NS counterparts or vise versa), but I would like to
be sure that this is true and should remain true in the future.
I would then export C APIs that would wrap around the Obj-C functions
that did the actual work, thus following the basic precepts of CF.
This would include my own CFGetMyTypeID() functions as appropriate.
This would be along side the true Obj-C APIs for Cocoa projects to
access directly, just skipping the Obj-C interface code when not
available in the build environment.
I want to have a unique CFTypeID that my class exports that would be
unique in the same manner as these already are in the CoreFoundation
world, no better. And I want my class to be retainable / releaseable
using the CoreFoundation retain / release APIs. I do not desire any
more compatability than this.
I can create my own equivalent APIs using C++, but it would be much
cleaner for my design to be able to work by extending CF instead.
Can anyone in the know comment if this is possible?
TIA,
brian
_____________________________________________________
Brian Cave <
mailto:email@hidden>