4 Commits

Author	SHA1	Message	Date
Alex Lorenz	b111da14ad	[ObjC] Error out when using forward-declared protocol in a @protocol ... expression Clang emits invalid protocol metadata when a @protocol expression is used with a forward-declared protocol. The protocol metadata is missing protocol conformance list of the protocol since we don't have access to the definition of it in the compiled translation unit. The linker then might end up picking the invalid metadata when linking which will lead to incorrect runtime protocol conformance checks. This commit makes sure that Clang fails to compile code that uses a @protocol expression with a forward-declared protocol. This ensures that Clang does not emit invalid protocol metadata. I added an extra assert in CodeGen to ensure that this kind of issue won't happen in other places. rdar://32787811 Differential Revision: https://reviews.llvm.org/D49462 llvm-svn: 340102	2018-08-17 22:18:08 +00:00
David Chisnall	404bbcbdcb	Revert "Revert r332955 "GNUstep Objective-C ABI version 2"" ... llvm-svn: 332963	2018-05-22 10:13:06 +00:00
Bjorn Pettersson	844663353d	Revert r332955 "GNUstep Objective-C ABI version 2" ... Reverted due to buildbot failures. Seems like isnumber() is some Apple addition to cctype. llvm-svn: 332957	2018-05-22 08:16:45 +00:00
David Chisnall	79356eefc0	GNUstep Objective-C ABI version 2 ... Summary: This includes initial support for the (hopefully final) updated Objective-C ABI, developed here: https://github.com/davidchisnall/clang-gnustep-abi-2 It also includes some cleanups and refactoring from older GNU ABIs. The current version is ELF only, other formats to follow. Reviewers: rjmccall, DHowett-MSFT Reviewed By: rjmccall Subscribers: smeenai, cfe-commits Differential Revision: https://reviews.llvm.org/D46052 llvm-svn: 332950	2018-05-22 06:09:23 +00:00