Patch for small addition to availability attribute.
This is to accept "NA" in place of vesion number for availability
attribute. Used on introduced=NA to mean unavailable
and deprecated=NA to mean nothing (not deprecated).
rdar://18804883
llvm-svn: 221417
diff --git a/clang/lib/Parse/ParseDecl.cpp b/clang/lib/Parse/ParseDecl.cpp
index 2288cb1..6934752 100644
--- a/clang/lib/Parse/ParseDecl.cpp
+++ b/clang/lib/Parse/ParseDecl.cpp
@@ -870,6 +870,19 @@
break;
}
+ // Special handling of 'NA' only when applied to introduced or
+ // deprecated.
+ if ((Keyword == Ident_introduced || Keyword == Ident_deprecated) &&
+ Tok.is(tok::identifier)) {
+ IdentifierInfo *NA = Tok.getIdentifierInfo();
+ if (NA->getName() == "NA") {
+ ConsumeToken();
+ if (Keyword == Ident_introduced)
+ UnavailableLoc = KeywordLoc;
+ continue;
+ }
+ }
+
SourceRange VersionRange;
VersionTuple Version = ParseVersionTuple(VersionRange);