Doug Gregor f2340ec9af [C interop] Allow an Unmanaged<T> result in a @c @implementation function ...

A C function returning a foreign reference or CoreFoundation type
unretained cannot be safely implemented, because there is no way to
ensure that the result object lives past the return. However, such C
functions do exist, and we would like to be able to implement them via
`@c @implementation`. Extend the signature-matching logic for
`@implementation` to permit an `Unmanaged<T>` result even when the
signature comes in an `T` to allow the use of `@implementation` here.

Implements rdar://188429740

2026-09-29 07:49:36 -07:00

..

c_decls.h

[SE-0495] Make sure we can find imported C functions for @c @implementation

2025-10-03 12:03:12 -07:00

c_implementation_cf_audited.h

[C interop] Allow an Unmanaged<T> result in a @c @implementation function

2026-09-29 07:49:36 -07:00

c_implementation_cf.h

[C interop] Allow an Unmanaged<T> result in a @c @implementation function

2026-09-29 07:49:36 -07:00

extension-generic-objc-protocol.h

…

extension-inheritance-conformance-objc-multi-file-2.swift

…

extension-inheritance-conformance-objc.h

…

module.modulemap

[SE-0495] Make sure we can find imported C functions for @c @implementation

2025-10-03 12:03:12 -07:00

objc_implementation_async_availability.h

[ClangImporter] Don't let imported OS availability suppress a method's async alternative clue. rdar://175355488

2026-07-06 16:15:48 -07:00

objc_implementation_availability.h

Sema: Adopt getDiagnosticDescription() in more availability diagnostics.

2026-09-14 21:48:10 -07:00

objc_implementation_class_extension_internal.h

…

objc_implementation_class_extension.h

…

objc_implementation_class_extension.modulemap

…

objc_implementation_inherited_init.h

Sema: don't warn about missing inherited init in @objc @implementation when the interface marks it unavailable. rdar://185699507

2026-09-02 14:07:21 -07:00

objc_implementation_internal.h

…

objc_implementation_private.modulemap

…

objc_implementation_swift_version.apinotes

Sema: Check the availability of '@objc @implementation' extensions and members.

2026-08-14 15:24:07 -07:00

objc_implementation_swift_version.h

Sema: Check the availability of '@objc @implementation' extensions and members.

2026-08-14 15:24:07 -07:00

objc_implementation_swift_version.modulemap

Sema: Check the availability of '@objc @implementation' extensions and members.

2026-08-14 15:24:07 -07:00

objc_implementation.h

[cxx-interop] Select among same-arity C++ overloads for @cxx @implementation

2026-09-15 14:59:53 -07:00