Commit Graph

3 Commits

Author SHA1 Message Date
zoecarver
839839f924 [cxx-interop] Rename enable-cxx-interop -> enable-experimental-cxx-interop.
Also removes the driver flag, this will now also always be guarded on `-Xfrontend`.
2022-04-07 19:15:25 -07:00
zoecarver
b8e52a7ad2 [cxx-interop] Lazily import members of Clang namespaces and records via requests.
Also adds a ClangImporter request zone and move some requests into it.
2021-10-20 14:52:43 -07:00
zoecarver
bd96959d14 [cxx-interop] Re-implement namespaces using enums + extensions.
C++ namespaces are module-independent, but enums are owned by their module's in Swift. So, to prevent declaring two enums with the same name, this patch implements a new approach to namespaces: enums with extensions.

Here's an example:
```
// Module A
namespace N { void test1(); }
// Module B
namespace N { void test2(); }
// __ObjC module
enum N { }
// Swift module A
extension N { func test1() }
// Swift module B
extension N { func test1() }
```

Thanks to @gribozavr for the great idea.
2021-02-14 16:54:24 -08:00