176     : ExternalSource(nullptr), isMultiplexExternalSource(false),  in Sema()
456     delete ExternalSource;  in ~Sema()
526   if (!ExternalSource) {  in addExternalSource()
527     ExternalSource = E;  in addExternalSource()
532     static_cast<MultiplexExternalSemaSource*>(ExternalSource)->addSource(*E);  in addExternalSource()
534     ExternalSource = new MultiplexExternalSemaSource(*ExternalSource, *E);  in addExternalSource()
893   if (!ExternalSource)  in LoadExternalWeakUndeclaredIdentifiers()
897   ExternalSource->ReadWeakUndeclaredIdentifiers(WeakIDs);  in LoadExternalWeakUndeclaredIdentifiers()
984   if (ExternalSource)  in emitAndClearUnusedLocalTypedefWarnings()
985     ExternalSource->ReadUnusedLocalTypedefNameCandidates(  in emitAndClearUnusedLocalTypedefWarnings()
1044   if (ExternalSource) {  in ActOnEndOfTranslationUnitFragment()
1047     ExternalSource->ReadPendingInstantiations(Pending);  in ActOnEndOfTranslationUnitFragment()
1170     if (ExternalSource)  in ActOnEndOfTranslationUnit()
1171       ExternalSource->ReadUndefinedButUsed(UndefinedButUsed);  in ActOnEndOfTranslationUnit()
1240             T = TentativeDefinitions.begin(ExternalSource),  in ActOnEndOfTranslationUnit()
1285            I = UnusedFileScopedDecls.begin(ExternalSource),  in ActOnEndOfTranslationUnit()
1366     if (ExternalSource)  in ActOnEndOfTranslationUnit()
1367       ExternalSource->ReadMismatchingDeleteExpressions(DeleteExprs);  in ActOnEndOfTranslationUnit()
1731   if (ExternalSource)  in emitDeferredDiags()
1732     ExternalSource->ReadDeclsToCheckForDeferredDiags(  in emitDeferredDiags()