Implements SE-0055: https://github.com/apple/swift-evolution/blob/master/proposals/0055-optional-unsafe-pointers.md
- Add NULL as an extra inhabitant of Builtin.RawPointer (currently
hardcoded to 0 rather than being target-dependent).
- Import non-object pointers as Optional/IUO when nullable/null_unspecified
(like everything else).
- Change the type checker's *-to-pointer conversions to handle a layer of
optional.
- Use 'AutoreleasingUnsafeMutablePointer<NSError?>?' as the type of error
parameters exported to Objective-C.
- Drop NilLiteralConvertible conformance for all pointer types.
- Update the standard library and then all the tests.
I've decided to leave this commit only updating existing tests; any new
tests will come in the following commits. (That may mean some additional
implementation work to follow.)
The other major piece that's missing here is migration. I'm hoping we get
a lot of that with Swift 1.1's work for optional object references, but
I still need to investigate.
These types are leftovers from the early pre-1.0 times when Int and UInt
were always 64-bit on all platforms. They serve no useful purpose
today. Int and UInt are defined to be word-sized and should be used
instead.
rdar://18693488
Swift SVN r30564
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
The new modules are:
* SwiftUnstable -- assorted additions to the core standard library
(more algorithms etc.)
* SwiftUnstableDarwinExtras -- proposed additions to the Darwin overlay,
not yet reviewed by the Darwin team.
* SwiftUnstablePthreadExtras -- wrappers that make it possible to
use pthread in Swift (they work around the lack of block-based API in
pthread). In future these could be possibly folded into the Darwin
overlay as well.
These APIs are useful without StdlibUnittest for writing automation
tools in Swift. Just like SwiftExperimental, none of these modules are
exposed to extrenal users.
Also, since these new modules can be compiled with -sil-serialize-all
(unlike StdlibUnittest, where we can't apply the flag because of
compiler bugs), standard library tests that need to run optimized code
(like AtomicInt.swift) are *much* faster now.
Swift SVN r25679
Now that it disables access control, this lit definition applies to many
more tests, where we used to use %target-run-stdlib-swift before access
control came online.
Also, drop -Xfrontend -disable-access-control from a bunch of tests that
don't need it.
Swift SVN r22634
The test harness now can recover after test crashes, allowing:
- check for crashes themselves (without reporting them to the Python lit driver,
which is about 10x slower -- even if CrashTracer is disabled);
- recover from unexpected test crashes and run the rest of the tests;
- this lays the groundwork for assertions that end the test execution, but
allow the rest of the tests to run (rdar://17906801).
Note that we don't spawn a fresh process for every test. We create a child
process and reuse it until it crashes.
Swift SVN r21090
