188     : ExternalSource(nullptr), isMultiplexExternalSource(false),  in Sema()
478     delete ExternalSource;  in ~Sema()
548   if (!ExternalSource) {  in addExternalSource()
549     ExternalSource = E;  in addExternalSource()
554     static_cast<MultiplexExternalSemaSource*>(ExternalSource)->addSource(*E);  in addExternalSource()
556     ExternalSource = new MultiplexExternalSemaSource(*ExternalSource, *E);  in addExternalSource()
915   if (!ExternalSource)  in LoadExternalWeakUndeclaredIdentifiers()
919   ExternalSource->ReadWeakUndeclaredIdentifiers(WeakIDs);  in LoadExternalWeakUndeclaredIdentifiers()
1006   if (ExternalSource)  in emitAndClearUnusedLocalTypedefWarnings()
1007     ExternalSource->ReadUnusedLocalTypedefNameCandidates(  in emitAndClearUnusedLocalTypedefWarnings()
1070   if (ExternalSource) {  in ActOnEndOfTranslationUnitFragment()
1073     ExternalSource->ReadPendingInstantiations(Pending);  in ActOnEndOfTranslationUnitFragment()
1199     if (ExternalSource)  in ActOnEndOfTranslationUnit()
1200       ExternalSource->ReadUndefinedButUsed(UndefinedButUsed);  in ActOnEndOfTranslationUnit()
1269             T = TentativeDefinitions.begin(ExternalSource),  in ActOnEndOfTranslationUnit()
1314            I = UnusedFileScopedDecls.begin(ExternalSource),  in ActOnEndOfTranslationUnit()
1395     if (ExternalSource)  in ActOnEndOfTranslationUnit()
1396       ExternalSource->ReadMismatchingDeleteExpressions(DeleteExprs);  in ActOnEndOfTranslationUnit()
1759   if (ExternalSource)  in emitDeferredDiags()
1760     ExternalSource->ReadDeclsToCheckForDeferredDiags(  in emitDeferredDiags()