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authorDouglas Gregor <dgregor@apple.com>2011-03-26 03:35:55 +0000
committerDouglas Gregor <dgregor@apple.com>2011-03-26 03:35:55 +0000
commitb53e417ba487f4193ef3b0485b420e0fdae643a2 (patch)
tree14884ffa641989b6851088b555f1dd03b42331b4 /lib/AST/DeclBase.cpp
parent2234873111009eb8655d63362cedc422eb9fc517 (diff)
Extend the new 'availability' attribute with support for an
'unavailable' argument, which specifies that the declaration to which the attribute appertains is unavailable on that platform. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128329 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/AST/DeclBase.cpp')
-rw-r--r--lib/AST/DeclBase.cpp11
1 files changed, 11 insertions, 0 deletions
diff --git a/lib/AST/DeclBase.cpp b/lib/AST/DeclBase.cpp
index 0e871ecc4c..c081b0d4a9 100644
--- a/lib/AST/DeclBase.cpp
+++ b/lib/AST/DeclBase.cpp
@@ -268,6 +268,17 @@ static AvailabilityResult CheckAvailability(ASTContext &Context,
if (A->getPlatform()->getName() != TargetPlatform)
return AR_Available;
+ // Make sure that this declaration has not been marked 'unavailable'.
+ if (A->getUnavailable()) {
+ if (Message) {
+ Message->clear();
+ llvm::raw_string_ostream Out(*Message);
+ Out << "not available on " << PrettyPlatformName;
+ }
+
+ return AR_Unavailable;
+ }
+
// Make sure that this declaration has already been introduced.
if (!A->getIntroduced().empty() &&
TargetMinVersion < A->getIntroduced()) {