119     : ExternalSource(nullptr), isMultiplexExternalSource(false),  in Sema()
360     delete ExternalSource;  in ~Sema()
411   if (!ExternalSource) {  in addExternalSource()
412     ExternalSource = E;  in addExternalSource()
417     static_cast<MultiplexExternalSemaSource*>(ExternalSource)->addSource(*E);  in addExternalSource()
419     ExternalSource = new MultiplexExternalSemaSource(*ExternalSource, *E);  in addExternalSource()
731   if (!ExternalSource)  in LoadExternalWeakUndeclaredIdentifiers()
735   ExternalSource->ReadWeakUndeclaredIdentifiers(WeakIDs);  in LoadExternalWeakUndeclaredIdentifiers()
822   if (ExternalSource)  in emitAndClearUnusedLocalTypedefWarnings()
823     ExternalSource->ReadUnusedLocalTypedefNameCandidates(  in emitAndClearUnusedLocalTypedefWarnings()
907     if (ExternalSource) {  in ActOnEndOfTranslationUnit()
910       ExternalSource->ReadPendingInstantiations(Pending);  in ActOnEndOfTranslationUnit()
980     if (ExternalSource)  in ActOnEndOfTranslationUnit()
981       ExternalSource->ReadUndefinedButUsed(UndefinedButUsed);  in ActOnEndOfTranslationUnit()
1039             T = TentativeDefinitions.begin(ExternalSource),  in ActOnEndOfTranslationUnit()
1077            I = UnusedFileScopedDecls.begin(ExternalSource),  in ActOnEndOfTranslationUnit()
1159     if (ExternalSource)  in ActOnEndOfTranslationUnit()
1160       ExternalSource->ReadMismatchingDeleteExpressions(DeleteExprs);  in ActOnEndOfTranslationUnit()