1 files changed, 7 insertions, 7 deletions
diff --git a/clang/lib/Tooling/Transformer/Parsing.cpp b/clang/lib/Tooling/Transformer/Parsing.cpp
index 4f41e2e90def..53a78e8df22a 100644
--- a/clang/lib/Tooling/Transformer/Parsing.cpp
+++ b/clang/lib/Tooling/Transformer/Parsing.cpp
@@ -14,11 +14,11 @@
 #include "clang/Lex/Lexer.h"
 #include "clang/Tooling/Transformer/RangeSelector.h"
 #include "clang/Tooling/Transformer/SourceCode.h"
-#include "llvm/ADT/None.h"
 #include "llvm/ADT/StringMap.h"
 #include "llvm/ADT/StringRef.h"
 #include "llvm/Support/Errc.h"
 #include "llvm/Support/Error.h"
+#include <optional>
 #include <string>
 #include <utility>
 #include <vector>
@@ -46,7 +46,7 @@ struct ParseState {
 };
 
 // Represents an intermediate result returned by a parsing function. Functions
-// that don't generate values should use `llvm::None`
+// that don't generate values should use `std::nullopt`
 template <typename ResultType> struct ParseProgress {
   ParseState State;
   // Intermediate result generated by the Parser.
@@ -120,11 +120,11 @@ getBinaryRangeSelectors() {
 }
 
 template <typename Element>
-llvm::Optional<Element> findOptional(const llvm::StringMap<Element> &Map,
-                                     llvm::StringRef Key) {
+std::optional<Element> findOptional(const llvm::StringMap<Element> &Map,
+                                    llvm::StringRef Key) {
   auto it = Map.find(Key);
   if (it == Map.end())
-    return llvm::None;
+    return std::nullopt;
   return it->second;
 }
 
@@ -152,12 +152,12 @@ static StringRef consumeWhitespace(StringRef S) {
 
 // Parses a single expected character \c c from \c State, skipping preceding
 // whitespace.  Error if the expected character isn't found.
-static ExpectedProgress<llvm::NoneType> parseChar(char c, ParseState State) {
+static ExpectedProgress<std::nullopt_t> parseChar(char c, ParseState State) {
   State.Input = consumeWhitespace(State.Input);
   if (State.Input.empty() || State.Input.front() != c)
     return makeParseError(State,
                           ("expected char not found: " + llvm::Twine(c)).str());
-  return makeParseProgress(advance(State, 1), llvm::None);
+  return makeParseProgress(advance(State, 1), std::nullopt);
 }
 
 // Parses an identitifer "token" -- handles preceding whitespace.