================
@@ -2249,6 +2283,9 @@ ExprResult Parser::ParseUnaryExprOrTypeTraitExpression() {
else if (getLangOpts().C2y && OpTok.is(tok::kw__Countof))
Diag(OpTok, diag::warn_c2y_compat_keyword) << OpTok.getName();
+ if (OpTok.is(tok::caretcaret))
+ return ParseCXXReflectExpression(OpTok.getLocation());
----------------
katzdm wrote:
I'm pretty sure I moved it into `ParseUnaryExprOrTypeTraitExpr` in my fork just
because a _reflect-expression_ [is formally a
_unary-expression_](https://eel.is/c++draft/expr#nt:unary-expression).
Functionally, I don't know of any reason it wouldn't work okay in
`ParseCastExpression` (and I'm pretty sure I had it there at some point).
Depends how much we care to mirror the grammar into this call structure, I
suppose.
https://github.com/llvm/llvm-project/pull/164692
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