Objective-C. Introducing __attribute__((objc_runtime_name("runtimename"))

to be applied to class or protocols. This will direct IRGen
for Objective-C metadata to use the new name in various places
where class and protocol names are needed.
rdar:// 17631257

llvm-svn: 213167

1 files changed, 14 insertions, 0 deletions

diff --git a/clang/lib/Sema/SemaDeclAttr.cpp b/clang/lib/Sema/SemaDeclAttr.cpp
index c87942d0331..29be7033202 100644
--- a/clang/lib/Sema/SemaDeclAttr.cpp
+++ b/clang/lib/Sema/SemaDeclAttr.cpp
@@ -3597,6 +3597,16 @@ static void handleObjCDesignatedInitializer(Sema &S, Decl *D,
                                          Attr.getAttributeSpellingListIndex()));
 }
 
+static void handleObjCRuntimeName(Sema &S, Decl *D,
+                                  const AttributeList &Attr) {
+    StringRef MetaDataName;
+    if (!S.checkStringLiteralArgumentAttr(Attr, 0, MetaDataName))
+        return;
+    D->addAttr(::new (S.Context)
+               ObjCRuntimeNameAttr(Attr.getRange(), S.Context,
+                                   MetaDataName, 0));
+}
+
 static void handleObjCOwnershipAttr(Sema &S, Decl *D,
                                     const AttributeList &Attr) {
   if (hasDeclarator(D)) return;
@@ -4246,6 +4256,10 @@ static void ProcessDeclAttribute(Sema &S, Scope *scope, Decl *D,
     handleObjCDesignatedInitializer(S, D, Attr);
     break;
 
+  case AttributeList::AT_ObjCRuntimeName:
+    handleObjCRuntimeName(S, D, Attr);
+    break;
+          
   case AttributeList::AT_CFAuditedTransfer:
     handleCFAuditedTransferAttr(S, D, Attr);
     break;