hokein wrote: > > Ah, I see. I haven't tried that, but one downside I can see is that it will > > make diagnostics for CTAD worse, we need to spell the type trait name in > > error messages when the __is_deducible trait fails. > > I think we should have a custom diag for that anyway "is not deducible from" > is better than " `__is_deducible<>` is false"
I think this is one of the symptoms, missing the trait name in the AST dump is another symptom. And I'm not aware of an easy way to customize a diagnostic within clang's template-constraint check mechanism. One implementation I can think of is to manual call the `DeduceTemplateArgumentsFromType` in the function overload resolution for the alias CTAD, and then emit a custom diagnostic, but it feels awkward. https://github.com/llvm/llvm-project/pull/89358 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
