Open Radar

 
"Toll-free bridging" means that you can cast from one type to another and have it behave as if it were of the other type. This is not the case with NSFont and CTFont, which the documentation claims are bridged.

To reproduce:

/* build with cc test.m -framework Cocoa -o test */

#include <Cocoa/Cocoa.h>

int main() {
  CFTypeID ct_font_type_id = CTFontGetTypeID();
  NSLog(@"CTFontGetTypeID is %lu", ct_font_type_id);

  NSFont* font = [NSFont systemFontOfSize:[NSFont systemFontSize]];
  CTFontRef ct_font = (CTFontRef)font;
  CFTypeID type_id = CFGetTypeID(ct_font);
  NSLog(@"CFGetTypeID for system font is %lu", type_id);
  assert(type_id == ct_font_type_id);
}

Expected:

The type ids match.

Actual results:

~/b/ctfont> ./test
2013-10-29 11:07:58.792 test[91007:507] CTFontGetTypeID is 256
2013-10-29 11:07:58.802 test[91007:507] CFGetTypeID for system font is 1
Assertion failed: (type_id == ct_font_type_id), function main, file test.m, line 13.
fish: Job 1, './test' terminated by signal SIGABRT (Abort)

Mac OS X 10.9, 13A603.

I don't know if this is a regression.