On OS X 10.10 and earlier, CoreImage is a sub-framework of QuartzCore.
Users of CoreImage use "import QuartzCore" and link against QuartzCore.
On OS X 10.11 (and in the OS X 10.11 SDK), CoreImage is a top-level
framework. Users of CoreImage use "import CoreImage" and would link against
CoreImage. Of course, QuartzCore continues to re-export CoreImage's API.
When backwards-deploying, we need to continue linking against QuartzCore,
but still need to bring in the overlay if you import CoreImage. That's
what this patch does.
rdar://problem/20196610
Swift SVN r28449
Enable checking for uses of potentially unavailable APIs. There is
a frontend option to disable it: -disable-availability-checking.
This commit updates the SDK overlays with @availability() annotations for the
declarations where the overlay refers to potentially unavailable APIs. It also changes
several tests that refer to potentially unavailable APIs to use either #available()
or @availability annotations.
Swift SVN r27272
The standard library has grown significantly, and we need a new
directory structure that clearly reflects the role of the APIs, and
allows future growth.
See stdlib/{public,internal,private}/README.txt for more information.
Swift SVN r25876
