Open Radar

 
Summary:
I'm perfectly fine with this being bounced back "man, this is crazypants, don't go editing system headers", but figured I'd let you know this corner case :-)

If I edit a system framework header (such as the iPhoneOS CGColor.h, and I have the generated swift header up, the generated header doesn't update until I quit and relaunch Xcode

Attached video shows it in action.

(obtw SourceKit is still happy - I just use black for all my syntax colors due to vision problems)

Steps to Reproduce:
1. Open up a system framework header from the Xcode bundle, such as CGColor.h
2. Open the generated header
3. Edit the original file by adding a new function, like 

CG_EXTERN CGColorRef __nullable CGColorCreateSwiftIsCool(CGColorSpaceRef cg_nullable space,
  const CGFloat * cg_nullable components)
  CG_AVAILABLE_STARTING(__MAC_10_3, __IPHONE_2_0);


Expected Results:
4. The generated header updates

Actual Results:
4. The generated header doesn't update.  Even when closing, re-opening the file, switching from generated to original source code.

Version:
Version 8.0 beta 3 (8S174q)
10.11.5 (15F34)


Notes:


Configuration:


Attachments:
'generated-system-interface-updating.mp4' was successfully uploaded.