Vendor import of clang trunk r240225:

https://llvm.org/svn/llvm-project/cfe/trunk@240225

1 files changed, 15 insertions, 0 deletions

diff --git a/lib/Basic/IdentifierTable.cpp b/lib/Basic/IdentifierTable.cpp
index 4e06352..b295008 100644
--- a/lib/Basic/IdentifierTable.cpp
+++ b/lib/Basic/IdentifierTable.cpp
@@ -16,6 +16,7 @@
 #include "clang/Basic/IdentifierTable.h"
 #include "clang/Basic/LangOptions.h"
 #include "clang/Basic/OperatorKinds.h"
+#include "clang/Basic/Specifiers.h"
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/FoldingSet.h"
 #include "llvm/ADT/SmallString.h"
@@ -645,3 +646,17 @@ const char *clang::getOperatorSpelling(OverloadedOperatorKind Operator) {
 
   llvm_unreachable("Invalid OverloadedOperatorKind!");
 }
+
+StringRef clang::getNullabilitySpelling(NullabilityKind kind) {
+  switch (kind) {
+  case NullabilityKind::NonNull:
+    return "__nonnull";
+
+  case NullabilityKind::Nullable:
+    return "__nullable";
+
+  case NullabilityKind::Unspecified:
+    return "__null_unspecified";
+  }
+  llvm_unreachable("Unknown nullability kind.");
+}