75       if (isa<ObjCProtocolDecl>(method->getDeclContext())) {  in checkInitMethod()
129                              const ObjCProtocolDecl *PD, Sema &S) {  in diagnoseNoescape()
527                                    ObjCProtocolDecl *const *ProtoRefs,  in diagnoseUseOfProtocols()
1103     diagnoseUseOfProtocols(*this, IDecl, (ObjCProtocolDecl*const*)ProtoRefs,  in ActOnStartClassInterface()
1105     IDecl->setProtocolList((ObjCProtocolDecl*const*)ProtoRefs, NumProtoRefs,  in ActOnStartClassInterface()
1196   const ObjCList<ObjCProtocolDecl> &PList) {  in CheckForwardProtocolDeclarationForCircularDependency()
1199   for (ObjCList<ObjCProtocolDecl>::iterator I = PList.begin(),  in CheckForwardProtocolDeclarationForCircularDependency()
1201     if (ObjCProtocolDecl *PDecl = LookupProtocol((*I)->getIdentifier(),  in CheckForwardProtocolDeclarationForCircularDependency()
1220 ObjCProtocolDecl *Sema::ActOnStartProtocolInterface(  in ActOnStartProtocolInterface()
1228   ObjCProtocolDecl *PrevDecl = LookupProtocol(ProtocolName, ProtocolLoc,  in ActOnStartProtocolInterface()
1230   ObjCProtocolDecl *PDecl = nullptr;  in ActOnStartProtocolInterface()
1231   if (ObjCProtocolDecl *Def = PrevDecl? PrevDecl->getDefinition() : nullptr) {  in ActOnStartProtocolInterface()
1236     PDecl = ObjCProtocolDecl::Create(Context, CurContext, ProtocolName,  in ActOnStartProtocolInterface()
1259       ObjCList<ObjCProtocolDecl> PList;  in ActOnStartProtocolInterface()
1260       PList.set((ObjCProtocolDecl *const*)ProtoRefs, NumProtoRefs, Context);  in ActOnStartProtocolInterface()
1266     PDecl = ObjCProtocolDecl::Create(Context, CurContext, ProtocolName,  in ActOnStartProtocolInterface()
1283     diagnoseUseOfProtocols(*this, PDecl, (ObjCProtocolDecl*const*)ProtoRefs,  in ActOnStartProtocolInterface()
1285     PDecl->setProtocolList((ObjCProtocolDecl*const*)ProtoRefs, NumProtoRefs,  in ActOnStartProtocolInterface()
1294 static bool NestedProtocolHasNoDefinition(ObjCProtocolDecl *PDecl,  in NestedProtocolHasNoDefinition()
1295                                           ObjCProtocolDecl *&UndefinedProtocol) {  in NestedProtocolHasNoDefinition()
1318     ObjCProtocolDecl *PDecl = LookupProtocol(Pair.first, Pair.second);  in FindProtocolDeclaration()
1320       DeclFilterCCC<ObjCProtocolDecl> CCC{};  in FindProtocolDeclaration()
1324       if ((PDecl = Corrected.getCorrectionDeclAs<ObjCProtocolDecl>()))  in FindProtocolDeclaration()
1346     ObjCProtocolDecl *UndefinedProtocol;  in FindProtocolDeclaration()
1373       if (candidate.getCorrectionDeclAs<ObjCProtocolDecl>())  in ValidateCandidate()
1468       ObjCProtocolDecl *&proto  in actOnObjCTypeArgsOrProtocolQualifiers()
1469         = reinterpret_cast<ObjCProtocolDecl *&>(protocols[i]);  in actOnObjCTypeArgsOrProtocolQualifiers()
1483       ObjCProtocolDecl *forwardDecl = nullptr;  in actOnObjCTypeArgsOrProtocolQualifiers()
1516       llvm::SmallPtrSet<ObjCProtocolDecl*, 8> knownProtocols;  in actOnObjCTypeArgsOrProtocolQualifiers()
1520         if (knownProtocols.count(static_cast<ObjCProtocolDecl *>(proto)) == 0) {  in actOnObjCTypeArgsOrProtocolQualifiers()
1541     ObjCProtocolDecl *proto = LookupProtocol(identifiers[i], identifierLocs[i]);  in actOnObjCTypeArgsOrProtocolQualifiers()
1708       if (auto proto = corrected.getCorrectionDeclAs<ObjCProtocolDecl>()) {  in actOnObjCTypeArgsOrProtocolQualifiers()
1796     ObjCProtocolDecl *PrevDecl = LookupProtocol(Ident, IdentPair.second,  in ActOnForwardProtocolDeclaration()
1798     ObjCProtocolDecl *PDecl  in ActOnForwardProtocolDeclaration()
1799       = ObjCProtocolDecl::Create(Context, CurContext, Ident,  in ActOnForwardProtocolDeclaration()
1898     diagnoseUseOfProtocols(*this, CDecl, (ObjCProtocolDecl*const*)ProtoRefs,  in ActOnStartCategoryInterface()
1900     CDecl->setProtocolList((ObjCProtocolDecl*const*)ProtoRefs, NumProtoRefs,  in ActOnStartCategoryInterface()
1904      IDecl->mergeClassExtensionProtocolList((ObjCProtocolDecl*const*)ProtoRefs,  in ActOnStartCategoryInterface()
2679 static void findProtocolsWithExplicitImpls(const ObjCProtocolDecl *PDecl,  in findProtocolsWithExplicitImpls()
2704     Sema &S, ObjCImplDecl *Impl, ObjCProtocolDecl *PDecl, bool &IncompleteImpl,  in CheckProtocolMethodDefs()
2861                                       isa<ObjCProtocolDecl>(CDecl));  in MatchAllMethodDeclarations()
2863           WarnExactTypedMethods(ImpMethodDecl, I, isa<ObjCProtocolDecl>(CDecl));  in MatchAllMethodDeclarations()
2890                                       isa<ObjCProtocolDecl>(CDecl));  in MatchAllMethodDeclarations()
2892           WarnExactTypedMethods(ImpMethodDecl, I, isa<ObjCProtocolDecl>(CDecl));  in MatchAllMethodDeclarations()
2897   if (ObjCProtocolDecl *PD = dyn_cast<ObjCProtocolDecl> (CDecl)) {  in MatchAllMethodDeclarations()
3299   auto *MethodProtocol = dyn_cast<ObjCProtocolDecl>(Method->getDeclContext());  in isMethodContextSameForKindofLookup()
3301       dyn_cast<ObjCProtocolDecl>(MethodInList->getDeclContext());  in isMethodContextSameForKindofLookup()
3492   auto *MethodProtocol = dyn_cast<ObjCProtocolDecl>(Method->getDeclContext());  in FilterMethodsByTypeBound()
3932     Sema &S, ObjCProtocolDecl *PDecl, ObjCCategoryDecl *CDecl);
3942     Sema &S, ObjCProtocolDecl *PDecl, ObjCCategoryDecl *CDecl) {  in DiagnoseCategoryDirectMembersProtocolConformance()
3993          || isa<ObjCProtocolDecl>(ClassDecl);  in ActOnAtEnd()
4341   void searchFrom(const ObjCProtocolDecl *protocol) {  in searchFrom()
4433         << isa<ObjCProtocolDecl>(overridden->getDeclContext());  in CheckObjCMethodDirectOverrides()
4458       if (isa<ObjCProtocolDecl>(overridden->getDeclContext()) ||  in CheckObjCMethodOverrides()
4483                 if (isa<ObjCProtocolDecl>(SuperOverridden->getDeclContext()) ||  in CheckObjCMethodOverrides()
4511               isa<ObjCProtocolDecl>(overridden->getDeclContext()));  in CheckObjCMethodOverrides()
4974     if (!isa<ObjCProtocolDecl>(ClassDecl)) {  in ActOnMethodDeclaration()