Support tvOS and watchOS availability attributes
llvm-svn: 251711
diff --git a/clang/lib/Sema/SemaDeclAttr.cpp b/clang/lib/Sema/SemaDeclAttr.cpp
index 91e196d..6d9d7d4 100644
--- a/clang/lib/Sema/SemaDeclAttr.cpp
+++ b/clang/lib/Sema/SemaDeclAttr.cpp
@@ -1863,6 +1863,22 @@
continue;
}
+ // If there is an existing availability attribute for this platform that
+ // is explicit and the new one is implicit use the explicit one and
+ // discard the new implicit attribute.
+ if (OldAA->getRange().isValid() && Range.isInvalid()) {
+ return nullptr;
+ }
+
+ // If there is an existing attribute for this platform that is implicit
+ // and the new attribute is explicit then erase the old one and
+ // continue processing the attributes.
+ if (Range.isValid() && OldAA->getRange().isInvalid()) {
+ Attrs.erase(Attrs.begin() + i);
+ --e;
+ continue;
+ }
+
FoundAny = true;
VersionTuple OldIntroduced = OldAA->getIntroduced();
VersionTuple OldDeprecated = OldAA->getDeprecated();
@@ -2000,6 +2016,74 @@
Index);
if (NewAttr)
D->addAttr(NewAttr);
+
+ // Transcribe "ios" to "watchos" (and add a new attribute) if the versioning
+ // matches before the start of the watchOS platform.
+ if (S.Context.getTargetInfo().getTriple().isWatchOS()) {
+ IdentifierInfo *NewII = nullptr;
+ if (II->getName() == "ios")
+ NewII = &S.Context.Idents.get("watchos");
+ else if (II->getName() == "ios_app_extension")
+ NewII = &S.Context.Idents.get("watchos_app_extension");
+
+ if (NewII) {
+ auto adjustWatchOSVersion = [](VersionTuple Version) -> VersionTuple {
+ if (Version.empty())
+ return Version;
+ auto Major = Version.getMajor();
+ auto NewMajor = Major >= 9 ? Major - 7 : 0;
+ if (NewMajor >= 2) {
+ if (Version.getMinor().hasValue()) {
+ if (Version.getSubminor().hasValue())
+ return VersionTuple(NewMajor, Version.getMinor().getValue(),
+ Version.getSubminor().getValue());
+ else
+ return VersionTuple(NewMajor, Version.getMinor().getValue());
+ }
+ }
+
+ return VersionTuple(2, 0);
+ };
+
+ auto NewIntroduced = adjustWatchOSVersion(Introduced.Version);
+ auto NewDeprecated = adjustWatchOSVersion(Deprecated.Version);
+ auto NewObsoleted = adjustWatchOSVersion(Obsoleted.Version);
+
+ AvailabilityAttr *NewAttr = S.mergeAvailabilityAttr(ND,
+ SourceRange(),
+ NewII,
+ NewIntroduced,
+ NewDeprecated,
+ NewObsoleted,
+ IsUnavailable, Str,
+ Sema::AMK_None,
+ Index);
+ if (NewAttr)
+ D->addAttr(NewAttr);
+ }
+ } else if (S.Context.getTargetInfo().getTriple().isTvOS()) {
+ // Transcribe "ios" to "tvos" (and add a new attribute) if the versioning
+ // matches before the start of the tvOS platform.
+ IdentifierInfo *NewII = nullptr;
+ if (II->getName() == "ios")
+ NewII = &S.Context.Idents.get("tvos");
+ else if (II->getName() == "ios_app_extension")
+ NewII = &S.Context.Idents.get("tvos_app_extension");
+
+ if (NewII) {
+ AvailabilityAttr *NewAttr = S.mergeAvailabilityAttr(ND,
+ SourceRange(),
+ NewII,
+ Introduced.Version,
+ Deprecated.Version,
+ Obsoleted.Version,
+ IsUnavailable, Str,
+ Sema::AMK_None,
+ Index);
+ if (NewAttr)
+ D->addAttr(NewAttr);
+ }
+ }
}
template <class T>