The generated thunks for functions can refer to some internal methods of
their arguments. As a result, those generated thunks should always be
after the definitions of the corresponding argument types. The printer
ordered the declarations by name, and Swift had the convention starting
types with upper case letters and functions with lower case letters.
This naming convention together with the ordering resulted in the
correct ordering in most of the cases. There were a couple of exceptions
when people diverged from the naming conventions or wanted to export
operators. This patch fixes this problem by always ordering type decls
before function decls.
rdar://129276354
In some cases, the reverse interop generated both a forward declaration and a
definition with unavailable attribute in the C++ header. Unfortunately, the
kinds of these symbol did not match. The forward declaration was templated
while the definition was not. The forward declaration has the correct kind,
so this patch extends the printing of unavailable definitions to include the
generic arguments.
rdar://119835933
As we do with Swift structs, emit the members of extensions of Swift
enums into the corresponding C++ class. This includes exposing more of
the Optional API from the standard library into Swift.
The checking should be as simple as checking for `isAny()` or `isAnyObject()`
on an existential type because all of the non-inverse protocol requirements
are going to form a protocol composition type.
[interop][SwiftToCxx] Ignore delayedMembers in C++
This fixes a bug where an ObjC @interface declaration is emitted for a
class that has a member that isn't emitted.
Resolves rdar://119835836
The frontend option '-clang-header-expose-module' allows the user to specify that APIs from an imported module have been exposed in another generated header, and thus APIs that depend on them can be safely exposed in the current generated header.
Each emitted declaration is annotated with the external_source_symbol with its own USR, to allow Clang's indexer to recognize this declaration as a Swift declaration with a specific USR
This is done by exposing nested Index and UTF8View type in String. Nested types aren't
supported yet, so we need to employ a number of hacks to emit them.
This allows you to import a method that returns the type of the context in which the method is declared when such
type is a generic parameter in another type. This means that it's now possible to bridge the initializer for
RawRepresentable enums.
