[clang] [Clang][RFC] Do not eat SFINAE diagnostics for explicit template arguments (PR #139066)

via cfe-commits cfe-commits at lists.llvm.org
Wed May 14 01:54:47 PDT 2025


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@@ -12166,6 +12174,15 @@ static void DiagnoseBadDeduction(Sema &S, NamedDecl *Found, Decl *Templated,
              diag::note_ovl_candidate_explicit_arg_mismatch_unnamed)
           << (index + 1);
     }
+
+    if (PartialDiagnosticAt *PDiag = DeductionFailure.getSFINAEDiagnostic()) {
+      unsigned DiagID =
----------------
cor3ntin wrote:

I think @mizvekov Is saying that if we could "attach" a diagnostics to another, all nested diagnostics would automatically could become notes.

But this is a fairly involved project...

https://github.com/llvm/llvm-project/pull/139066


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