diff options
Diffstat (limited to 'lib/Sema/SemaOverload.cpp')
| -rw-r--r-- | lib/Sema/SemaOverload.cpp | 33 |
1 files changed, 19 insertions, 14 deletions
diff --git a/lib/Sema/SemaOverload.cpp b/lib/Sema/SemaOverload.cpp index 6793079ff0..47c1e3cec0 100644 --- a/lib/Sema/SemaOverload.cpp +++ b/lib/Sema/SemaOverload.cpp @@ -4372,7 +4372,8 @@ Sema::CompareReferenceRelationship(SourceLocation Loc, QualType OrigT1, QualType OrigT2, bool &DerivedToBase, bool &ObjCConversion, - bool &ObjCLifetimeConversion) { + bool &ObjCLifetimeConversion, + bool &FunctionConversion) { assert(!OrigT1->isReferenceType() && "T1 must be the pointee type of the reference type"); assert(!OrigT2->isReferenceType() && "T2 cannot be a reference type"); @@ -4402,15 +4403,16 @@ Sema::CompareReferenceRelationship(SourceLocation Loc, Context.canBindObjCObjectType(UnqualT1, UnqualT2)) ObjCConversion = true; else if (UnqualT2->isFunctionType() && - IsFunctionConversion(UnqualT2, UnqualT1, ConvertedT2)) + IsFunctionConversion(UnqualT2, UnqualT1, ConvertedT2)) { // C++1z [dcl.init.ref]p4: // cv1 T1" is reference-compatible with "cv2 T2" if [...] T2 is "noexcept // function" and T1 is "function" // // We extend this to also apply to 'noreturn', so allow any function // conversion between function types. + FunctionConversion = true; return Ref_Compatible; - else + } else return Ref_Incompatible; // At this point, we know that T1 and T2 are reference-related (at @@ -4491,6 +4493,7 @@ FindConversionForRefInit(Sema &S, ImplicitConversionSequence &ICS, bool DerivedToBase = false; bool ObjCConversion = false; bool ObjCLifetimeConversion = false; + bool FunctionConversion = false; // If we are initializing an rvalue reference, don't permit conversion // functions that return lvalues. @@ -4503,12 +4506,13 @@ FindConversionForRefInit(Sema &S, ImplicitConversionSequence &ICS, if (!ConvTemplate && S.CompareReferenceRelationship( - DeclLoc, - Conv->getConversionType().getNonReferenceType() - .getUnqualifiedType(), - DeclType.getNonReferenceType().getUnqualifiedType(), - DerivedToBase, ObjCConversion, ObjCLifetimeConversion) == - Sema::Ref_Incompatible) + DeclLoc, + Conv->getConversionType() + .getNonReferenceType() + .getUnqualifiedType(), + DeclType.getNonReferenceType().getUnqualifiedType(), + DerivedToBase, ObjCConversion, ObjCLifetimeConversion, + FunctionConversion) == Sema::Ref_Incompatible) continue; } else { // If the conversion function doesn't return a reference type, @@ -4612,11 +4616,11 @@ TryReferenceInit(Sema &S, Expr *Init, QualType DeclType, bool DerivedToBase = false; bool ObjCConversion = false; bool ObjCLifetimeConversion = false; + bool FunctionConversion = false; Expr::Classification InitCategory = Init->Classify(S.Context); - Sema::ReferenceCompareResult RefRelationship - = S.CompareReferenceRelationship(DeclLoc, T1, T2, DerivedToBase, - ObjCConversion, ObjCLifetimeConversion); - + Sema::ReferenceCompareResult RefRelationship = S.CompareReferenceRelationship( + DeclLoc, T1, T2, DerivedToBase, ObjCConversion, ObjCLifetimeConversion, + FunctionConversion); // C++0x [dcl.init.ref]p5: // A reference to type "cv1 T1" is initialized by an expression @@ -5041,9 +5045,10 @@ TryListConversion(Sema &S, InitListExpr *From, QualType ToType, bool dummy1 = false; bool dummy2 = false; bool dummy3 = false; + bool dummy4 = false; Sema::ReferenceCompareResult RefRelationship = S.CompareReferenceRelationship(From->getBeginLoc(), T1, T2, dummy1, - dummy2, dummy3); + dummy2, dummy3, dummy4); if (RefRelationship >= Sema::Ref_Related) { return TryReferenceInit(S, Init, ToType, /*FIXME*/ From->getBeginLoc(), |