When serializing `@available` attributes, if the attribute applies to a custom
domain include enough information to deserialize the reference to that domain.
Resolves rdar://138441265.
`module.map` as a module map name has been discouraged since 2014, and
Clang will soon warn on its usage. This patch renames all instances of
`module.map` in the Swift tests to `module.modulemap` in preparation
for this change to Clang.
rdar://106123303
Error structs synthesized by ClangImporter can be renamed using SWIFT_NAME() to syntactically appear anywhere in the type hierarchy with any name, but they should always be mangled as `__C_Synthesized.related decl ‘e’ of <Objective-C enum name>`. Unforunately, when SWIFT_NAME() was used to nest the error struct inside another type, an ASTMangler bug would cause it to be mangled as `<parent type>.related decl ‘e’ of <Objective-C enum name>`, and an ASTDemangler bug would also require a valid parent type. This created a mismatch between the compiler’s and runtime’s manglings which caused crashes when you tried to match the imported error struct in a `catch`.
This PR corrects the compiler bugs so that it generates the mangling the runtime expects. This is theoretically ABI-breaking, but as far as I can determine nobody has shipped the incorrectly mangled names, presumably because they crash when you try to use them.
Fixes <rdar://problem/48040880>.
When an enum is imported as an error, the imported type itself becomes
a nested type 'Code' of its wrapper type, so you get a type like
'MyError.Code'. However in the mangling grammar the type is a
child of a module and not another type.
This was tripping up TypeDecoder, which would check parent types for
validity and throw out the demangling since it looked invalid.
However since this case really is valid, just skip the whole parent
type mess when the type is imported and non-generic.
When a Clang-defined Objective-C class has the objc_runtime_visible
attribute, use objc_lookUpClass to get the Objective-C class object
rather than referencing the symbol directly. Also, ban subclassing of
Objective-C-runtime-visible classes as well as @objc on members of
extensions of such classes.
As a drive-by needed for this test, make
ClassDecl::getObjCRuntimeName() respect the Clang objc_runtime_name
attribute.
Fixes rdar://problem/25494454.
Fix an i32 vs. 64 issue in the IR matching for the IR generation test.
This reverts commit 09973e6956.
When a Clang-defined Objective-C class has the objc_runtime_visible
attribute, use objc_lookUpClass to get the Objective-C class object
rather than referencing the symbol directly. Also, ban subclassing of
Objective-C-runtime-visible classes as well as @objc on members of
extensions of such classes.
As a drive-by needed for this test, make
ClassDecl::getObjCRuntimeName() respect the Clang objc_runtime_name
attribute.
Fixes rdar://problem/25494454.
