================ @@ -12114,6 +12115,35 @@ static void NoteFunctionCandidate(Sema &S, OverloadCandidate *Cand, return; } + // If this is an implicit deduction guide against an implicitly defined + // constructor, add a note for it. Neither these deduction guides nor their + // corresponding constructors are explicitly spelled in the source code, + // and simply producing a deduction failure note around the heading of the + // enclosing RecordDecl would be confusing. + // + // We prefer adding such notes at the end of the last deduction failure + // reason because duplicate code snippets appearing in the diagnostic + // would likely become noisy. + auto _ = llvm::make_scope_exit([&] { + auto *DG = dyn_cast<CXXDeductionGuideDecl>(Fn); + if (!DG || !DG->isImplicit() || DG->getCorrespondingConstructor()) ---------------- zyn0217 wrote:
Done. I think this can be done by checking the origin template. https://github.com/llvm/llvm-project/pull/96084 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits