================
@@ -73,6 +73,23 @@ Nullability getNullabilityAnnotation(QualType Type);
/// returned.
std::optional<int> tryExpandAsInteger(StringRef Macro, const Preprocessor &PP);
+class CachedMacroValue {
----------------
balazske wrote:
What is the advantage of using this instead of just `std::optional`? The member
functions are just forwarding the operations.
https://github.com/llvm/llvm-project/pull/127409
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