[clang] [Clang] [C++26] Expansion Statements (Part 1: AST) (PR #169680)

[Corentin Jabot via cfe-commits]

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@@ -38,6 +38,18 @@ static Attr *handleFallThroughAttr(Sema &S, Stmt *St, const ParsedAttr &A,
     return nullptr;
   }
 
+  // CWG 3045: The innermost enclosing switch statement of a fallthrough
+  // statement S shall be contained in the innermost enclosing expansion
+  // statement (8.7 [stmt.expand]) of S, if any.
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cor3ntin wrote:

ideally we should have a dr test for everything so that reflects the completeness of your work
https://clang.llvm.org/cxx_dr_status.html

https://github.com/llvm/llvm-project/pull/169680