Support Swift in platform availability attribute
Summary: This adds support for Swift platform availability attributes. It's largely a port of the changes made to https://github.com/apple/swift-clang/ for Swift availability attributes. Specifically, https://github.com/apple/swift-clang/commit/84b5a21c31cb5b0d7d958a478bc01964939b6952 and https://github.com/apple/swift-clang/commit/e5b87f265aede41c8381094bbf54e2715c8293b0 . The implementation of attribute_availability_swift is a little different and additional tests in test/Index/availability.c were added.
Reviewers: manmanren, friss, doug.gregor, arphaman, jfb, erik.pilkington, aaron.ballman
Reviewed By: aaron.ballman
Subscribers: aaron.ballman, ColinKinloch, jrmuizel, cfe-commits
Differential Revision: https://reviews.llvm.org/D50318
llvm-svn: 346633
diff --git a/clang/lib/Sema/SemaDeclAttr.cpp b/clang/lib/Sema/SemaDeclAttr.cpp
index f3b281b..b77b77d 100644
--- a/clang/lib/Sema/SemaDeclAttr.cpp
+++ b/clang/lib/Sema/SemaDeclAttr.cpp
@@ -2410,6 +2410,15 @@
if (const auto *SE = dyn_cast_or_null<StringLiteral>(AL.getReplacementExpr()))
Replacement = SE->getString();
+ if (II->isStr("swift")) {
+ if (Introduced.isValid() || Obsoleted.isValid() ||
+ (!IsUnavailable && !Deprecated.isValid())) {
+ S.Diag(AL.getLoc(),
+ diag::warn_availability_swift_unavailable_deprecated_only);
+ return;
+ }
+ }
+
AvailabilityAttr *NewAttr = S.mergeAvailabilityAttr(ND, AL.getRange(), II,
false/*Implicit*/,
Introduced.Version,