54 Commits

Author	SHA1	Message	Date
Jordan Rose	bc83940301	Make pointer nullability explicit using Optional. ... 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.	2016-04-11 20:06:38 -07:00
Manav Gabhawala	7928140f79	[SE-0046] Implements consistent function parameter labels by discarding extraneous parameter names and adding _ where necessary	2016-04-06 20:21:58 -04:00
Jordan Rose	6dd1f0a5f9	[stdlib] Apply @_fixed_layout to various stdlib and overlay types ... This is a staging attribute that will eventually mean "fixed-contents" for structs and "closed" for enums, as described in docs/LibraryEvolution.rst. This is pretty much the minimal set of types that must be fixed-layout, because SILGen makes assumptions about their lowering. If desired, some SILGen refactoring can allow some of these to be resilient. For example, bridging value types could be made to work with resilient types.	2016-04-01 13:07:18 -07:00
rintaro ishizaki	9ce1387ee3	[stdlib] Merged Glibc code to Platform directory.	2016-03-23 00:51:37 +09:00