Improve on reporting ambiguity involving built-in candidates.
I still don't like it but it is improvement over what we had. llvm-svn: 83603
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@ -778,7 +778,7 @@ def err_ovl_template_candidate : Note<
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"candidate function template specialization %0">;
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def err_ovl_candidate_deleted : Note<
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"candidate function has been explicitly %select{made unavailable|deleted}0">;
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def err_ovl_builtin_candidate : Note<"built-in candidate function %0">;
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def err_ovl_builtin_candidate : Note<"built-in candidate function %0 for operator '%1'">;
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def err_ovl_no_viable_function_in_init : Error<
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"no matching constructor for initialization of %0">;
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def err_ovl_ambiguous_init : Error<"call to constructor of %0 is ambiguous">;
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@ -906,7 +906,9 @@ public:
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SourceLocation Loc,
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OverloadCandidateSet::iterator& Best);
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void PrintOverloadCandidates(OverloadCandidateSet& CandidateSet,
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bool OnlyViable);
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bool OnlyViable,
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BinaryOperator::Opcode Opc=(BinaryOperator::Opcode)0,
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SourceLocation Loc=SourceLocation());
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FunctionDecl *ResolveAddressOfOverloadedFunction(Expr *From, QualType ToType,
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bool Complain);
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@ -3690,11 +3690,12 @@ Sema::AddBuiltinOperatorCandidates(OverloadedOperatorKind Op,
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Ptr != CandidateTypes.pointer_end(); ++Ptr) {
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QualType C1Ty = (*Ptr);
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QualType C1;
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unsigned CV1;
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if (const PointerType *PointerTy = C1Ty->getAs<PointerType>()) {
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C1 = PointerTy->getPointeeType();
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C1 = C1.getUnqualifiedType();
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C1 = PointerTy->getPointeeType().getUnqualifiedType();
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if (!isa<RecordType>(C1))
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continue;
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CV1 = PointerTy->getPointeeType().getCVRQualifiers();
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}
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for (BuiltinCandidateTypeSet::iterator
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MemPtr = CandidateTypes.member_pointer_begin(),
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@ -3708,7 +3709,6 @@ Sema::AddBuiltinOperatorCandidates(OverloadedOperatorKind Op,
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QualType ParamTypes[2] = { *Ptr, *MemPtr };
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// build CV12 T&
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QualType T = mptr->getPointeeType();
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unsigned CV1 = (*Ptr).getCVRQualifiers();
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unsigned CV2 = T.getCVRQualifiers();
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T = Context.getCVRQualifiedType(T, (CV1 | CV2));
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QualType ResultTy = Context.getLValueReferenceType(T);
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@ -3972,7 +3972,9 @@ Sema::BestViableFunction(OverloadCandidateSet& CandidateSet,
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/// set. If OnlyViable is true, only viable candidates will be printed.
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void
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Sema::PrintOverloadCandidates(OverloadCandidateSet& CandidateSet,
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bool OnlyViable) {
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bool OnlyViable,
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BinaryOperator::Opcode Opc,
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SourceLocation OpLoc) {
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OverloadCandidateSet::iterator Cand = CandidateSet.begin(),
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LastCand = CandidateSet.end();
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for (; Cand != LastCand; ++Cand) {
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@ -4045,17 +4047,14 @@ Sema::PrintOverloadCandidates(OverloadCandidateSet& CandidateSet,
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Diag(Cand->Surrogate->getLocation(), diag::err_ovl_surrogate_cand)
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<< FnType;
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} else if (OnlyViable) {
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// FIXME: We need to get the identifier in here
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// FIXME: Do we want the error message to point at the operator?
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// (built-ins won't have a location)
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// FIXME: can we get some kind of stable location for this?
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QualType FnType
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= Context.getFunctionType(Cand->BuiltinTypes.ResultTy,
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Cand->BuiltinTypes.ParamTypes,
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Cand->Conversions.size(),
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false, 0);
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Diag(SourceLocation(), diag::err_ovl_builtin_candidate) << FnType;
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Diag(OpLoc, diag::err_ovl_builtin_candidate) << FnType <<
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BinaryOperator::getOpcodeStr(Opc);
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}
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}
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}
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@ -4714,7 +4713,7 @@ Sema::CreateOverloadedBinOp(SourceLocation OpLoc,
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Diag(OpLoc, diag::err_ovl_ambiguous_oper)
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<< BinaryOperator::getOpcodeStr(Opc)
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<< Args[0]->getSourceRange() << Args[1]->getSourceRange();
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PrintOverloadCandidates(CandidateSet, /*OnlyViable=*/true);
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PrintOverloadCandidates(CandidateSet, /*OnlyViable=*/true, Opc, OpLoc);
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return ExprError();
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case OR_Deleted:
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