75       if (isa<ObjCProtocolDecl>(method->getDeclContext())) {  in checkInitMethod()
129                              const ObjCProtocolDecl *PD, Sema &S) {  in diagnoseNoescape()
527                                    ObjCProtocolDecl *const *ProtoRefs,  in diagnoseUseOfProtocols()
1095     diagnoseUseOfProtocols(*this, IDecl, (ObjCProtocolDecl*const*)ProtoRefs,  in ActOnStartClassInterface()
1097     IDecl->setProtocolList((ObjCProtocolDecl*const*)ProtoRefs, NumProtoRefs,  in ActOnStartClassInterface()
1187   const ObjCList<ObjCProtocolDecl> &PList) {  in CheckForwardProtocolDeclarationForCircularDependency()
1190   for (ObjCList<ObjCProtocolDecl>::iterator I = PList.begin(),  in CheckForwardProtocolDeclarationForCircularDependency()
1192     if (ObjCProtocolDecl *PDecl = LookupProtocol((*I)->getIdentifier(),  in CheckForwardProtocolDeclarationForCircularDependency()
1219   ObjCProtocolDecl *PrevDecl = LookupProtocol(ProtocolName, ProtocolLoc,  in ActOnStartProtocolInterface()
1221   ObjCProtocolDecl *PDecl = nullptr;  in ActOnStartProtocolInterface()
1222   if (ObjCProtocolDecl *Def = PrevDecl? PrevDecl->getDefinition() : nullptr) {  in ActOnStartProtocolInterface()
1231     PDecl = ObjCProtocolDecl::Create(Context, CurContext, ProtocolName,  in ActOnStartProtocolInterface()
1244       ObjCList<ObjCProtocolDecl> PList;  in ActOnStartProtocolInterface()
1245       PList.set((ObjCProtocolDecl *const*)ProtoRefs, NumProtoRefs, Context);  in ActOnStartProtocolInterface()
1251     PDecl = ObjCProtocolDecl::Create(Context, CurContext, ProtocolName,  in ActOnStartProtocolInterface()
1268     diagnoseUseOfProtocols(*this, PDecl, (ObjCProtocolDecl*const*)ProtoRefs,  in ActOnStartProtocolInterface()
1270     PDecl->setProtocolList((ObjCProtocolDecl*const*)ProtoRefs, NumProtoRefs,  in ActOnStartProtocolInterface()
1278 static bool NestedProtocolHasNoDefinition(ObjCProtocolDecl *PDecl,  in NestedProtocolHasNoDefinition()
1279                                           ObjCProtocolDecl *&UndefinedProtocol) {  in NestedProtocolHasNoDefinition()
1302     ObjCProtocolDecl *PDecl = LookupProtocol(Pair.first, Pair.second);  in FindProtocolDeclaration()
1304       DeclFilterCCC<ObjCProtocolDecl> CCC{};  in FindProtocolDeclaration()
1308       if ((PDecl = Corrected.getCorrectionDeclAs<ObjCProtocolDecl>()))  in FindProtocolDeclaration()
1330     ObjCProtocolDecl *UndefinedProtocol;  in FindProtocolDeclaration()
1357       if (candidate.getCorrectionDeclAs<ObjCProtocolDecl>())  in ValidateCandidate()
1452       ObjCProtocolDecl *&proto  in actOnObjCTypeArgsOrProtocolQualifiers()
1453         = reinterpret_cast<ObjCProtocolDecl *&>(protocols[i]);  in actOnObjCTypeArgsOrProtocolQualifiers()
1467       ObjCProtocolDecl *forwardDecl = nullptr;  in actOnObjCTypeArgsOrProtocolQualifiers()
1500       llvm::SmallPtrSet<ObjCProtocolDecl*, 8> knownProtocols;  in actOnObjCTypeArgsOrProtocolQualifiers()
1504         if (knownProtocols.count(static_cast<ObjCProtocolDecl *>(proto)) == 0) {  in actOnObjCTypeArgsOrProtocolQualifiers()
1525     ObjCProtocolDecl *proto = LookupProtocol(identifiers[i], identifierLocs[i]);  in actOnObjCTypeArgsOrProtocolQualifiers()
1692       if (auto proto = corrected.getCorrectionDeclAs<ObjCProtocolDecl>()) {  in actOnObjCTypeArgsOrProtocolQualifiers()
1780     ObjCProtocolDecl *PrevDecl = LookupProtocol(Ident, IdentPair.second,  in ActOnForwardProtocolDeclaration()
1782     ObjCProtocolDecl *PDecl  in ActOnForwardProtocolDeclaration()
1783       = ObjCProtocolDecl::Create(Context, CurContext, Ident,  in ActOnForwardProtocolDeclaration()
1881     diagnoseUseOfProtocols(*this, CDecl, (ObjCProtocolDecl*const*)ProtoRefs,  in ActOnStartCategoryInterface()
1883     CDecl->setProtocolList((ObjCProtocolDecl*const*)ProtoRefs, NumProtoRefs,  in ActOnStartCategoryInterface()
1887      IDecl->mergeClassExtensionProtocolList((ObjCProtocolDecl*const*)ProtoRefs,  in ActOnStartCategoryInterface()
2658 static void findProtocolsWithExplicitImpls(const ObjCProtocolDecl *PDecl,  in findProtocolsWithExplicitImpls()
2684                                     ObjCProtocolDecl *PDecl,  in CheckProtocolMethodDefs()
2846                                       isa<ObjCProtocolDecl>(CDecl));  in MatchAllMethodDeclarations()
2848           WarnExactTypedMethods(ImpMethodDecl, I, isa<ObjCProtocolDecl>(CDecl));  in MatchAllMethodDeclarations()
2875                                       isa<ObjCProtocolDecl>(CDecl));  in MatchAllMethodDeclarations()
2877           WarnExactTypedMethods(ImpMethodDecl, I, isa<ObjCProtocolDecl>(CDecl));  in MatchAllMethodDeclarations()
2882   if (ObjCProtocolDecl *PD = dyn_cast<ObjCProtocolDecl> (CDecl)) {  in MatchAllMethodDeclarations()
3285   auto *MethodProtocol = dyn_cast<ObjCProtocolDecl>(Method->getDeclContext());  in isMethodContextSameForKindofLookup()
3287       dyn_cast<ObjCProtocolDecl>(MethodInList->getDeclContext());  in isMethodContextSameForKindofLookup()
3476   auto *MethodProtocol = dyn_cast<ObjCProtocolDecl>(Method->getDeclContext());  in FilterMethodsByTypeBound()
3916     Sema &S, ObjCProtocolDecl *PDecl, ObjCCategoryDecl *CDecl);
3926     Sema &S, ObjCProtocolDecl *PDecl, ObjCCategoryDecl *CDecl) {  in DiagnoseCategoryDirectMembersProtocolConformance()
3977          || isa<ObjCProtocolDecl>(ClassDecl);  in ActOnAtEnd()
4325   void searchFrom(const ObjCProtocolDecl *protocol) {  in searchFrom()
4417         << isa<ObjCProtocolDecl>(overridden->getDeclContext());  in CheckObjCMethodDirectOverrides()
4437       if (isa<ObjCProtocolDecl>(overridden->getDeclContext()) ||  in CheckObjCMethodOverrides()
4463                 if (isa<ObjCProtocolDecl>(SuperOverridden->getDeclContext()) ||  in CheckObjCMethodOverrides()
4491               isa<ObjCProtocolDecl>(overridden->getDeclContext()));  in CheckObjCMethodOverrides()
4954     if (!isa<ObjCProtocolDecl>(ClassDecl)) {  in ActOnMethodDeclaration()