[llvm-branch-commits] [clang] [Clang] [C++26] Expansion Statements (Part 5: Iterating Expansion Statements) (PR #169684)

[Corentin Jabot via llvm-branch-commits]

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@@ -20,9 +20,28 @@
 #include "clang/Sema/Overload.h"
 #include "clang/Sema/Sema.h"
 #include "clang/Sema/Template.h"
+#include "llvm/ADT/ScopeExit.h"
 
 using namespace clang;
 
+namespace {
+struct IterableExpansionStmtData {
+  enum class State {
+    NotIterable,
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cor3ntin wrote:

I think this should either be called `Unknown` or replaced by Matheu's new fangled UnsignedOptional

https://github.com/llvm/llvm-project/pull/169684