Add 'nopartial' qualifier for availability attributes.
An optional nopartial can be placed after the platform name.
int bar() __attribute__((availability(macosx,nopartial,introduced=10.12))
When deploying back to a platform version prior to when the declaration was
introduced, with 'nopartial', Clang emits an error specifying that the function
is not introduced yet; without 'nopartial', the behavior stays the same: the
declaration is `weakly linked`.
A member is added to the end of AttributeList to save the location of the
'nopartial' keyword. A bool member is added to AvailabilityAttr.
The diagnostics for 'nopartial' not-yet-introduced is handled in the same way as
we handle unavailable cases.
Reviewed by Doug Gregor and Jordan Rose.
rdar://23791325
llvm-svn: 261163
diff --git a/clang/lib/Parse/Parser.cpp b/clang/lib/Parse/Parser.cpp
index e33586c..cfc02e0 100644
--- a/clang/lib/Parse/Parser.cpp
+++ b/clang/lib/Parse/Parser.cpp
@@ -491,6 +491,7 @@
Ident_deprecated = nullptr;
Ident_obsoleted = nullptr;
Ident_unavailable = nullptr;
+ Ident_nopartial = nullptr;
Ident__except = nullptr;