214   IndirectLocalPath &Path;  member
215   unsigned OldSize = Path.size();
216   RevertToOldSizeRAII(IndirectLocalPath &Path) : Path(Path) {}  in RevertToOldSizeRAII()
217   ~RevertToOldSizeRAII() { Path.resize(OldSize); }  in ~RevertToOldSizeRAII()
220 using LocalVisitor = llvm::function_ref<bool(IndirectLocalPath &Path, Local L,
224 static bool isVarOnPath(IndirectLocalPath &Path, VarDecl *VD) {  in isVarOnPath()  argument
225   for (auto E : Path)  in isVarOnPath()
231 static bool pathContainsInit(IndirectLocalPath &Path) {  in pathContainsInit()  argument
232   return llvm::any_of(Path, [=](IndirectLocalPathEntry E) {  in pathContainsInit()
238 static void visitLocalsRetainedByInitializer(IndirectLocalPath &Path,
243 static void visitLocalsRetainedByReferenceBinding(IndirectLocalPath &Path,
329 static void handleGslAnnotatedTypes(IndirectLocalPath &Path, Expr *Call,  in handleGslAnnotatedTypes()  argument
338       for (const IndirectLocalPathEntry &PE : llvm::reverse(Path)) {  in handleGslAnnotatedTypes()
347     Path.push_back({Value ? IndirectLocalPathEntry::GslPointerInit  in handleGslAnnotatedTypes()
351       visitLocalsRetainedByReferenceBinding(Path, Arg, RK_ReferenceBinding,  in handleGslAnnotatedTypes()
355       visitLocalsRetainedByInitializer(Path, Arg, Visit, true,  in handleGslAnnotatedTypes()
357     Path.pop_back();  in handleGslAnnotatedTypes()
426 static void visitLifetimeBoundArguments(IndirectLocalPath &Path, Expr *Call,  in visitLifetimeBoundArguments()  argument
451     Path.push_back({IndirectLocalPathEntry::LifetimeBoundCall, Arg, D});  in visitLifetimeBoundArguments()
453       visitLocalsRetainedByReferenceBinding(Path, Arg, RK_ReferenceBinding,  in visitLifetimeBoundArguments()
457       visitLocalsRetainedByInitializer(Path, Arg, Visit, true,  in visitLifetimeBoundArguments()
459     Path.pop_back();  in visitLifetimeBoundArguments()
493 static void visitLocalsRetainedByReferenceBinding(IndirectLocalPath &Path,  in visitLocalsRetainedByReferenceBinding()  argument
497   RevertToOldSizeRAII RAII(Path);  in visitLocalsRetainedByReferenceBinding()
533         return visitLocalsRetainedByInitializer(Path, Init, Visit, true,  in visitLocalsRetainedByReferenceBinding()
540       Path.push_back(  in visitLocalsRetainedByReferenceBinding()
547     if (Visit(Path, Local(MTE), RK))  in visitLocalsRetainedByReferenceBinding()
548       visitLocalsRetainedByInitializer(Path, MTE->getSubExpr(), Visit, true,  in visitLocalsRetainedByReferenceBinding()
556       visitLocalsRetainedByInitializer(Path, M->getBase(), Visit, true,  in visitLocalsRetainedByReferenceBinding()
562       handleGslAnnotatedTypes(Path, Init, Visit);  in visitLocalsRetainedByReferenceBinding()
563     return visitLifetimeBoundArguments(Path, Init, Visit);  in visitLocalsRetainedByReferenceBinding()
575         Visit(Path, Local(DRE), RK);  in visitLocalsRetainedByReferenceBinding()
580       } else if (VD->getInit() && !isVarOnPath(Path, VD)) {  in visitLocalsRetainedByReferenceBinding()
581         Path.push_back({IndirectLocalPathEntry::VarInit, DRE, VD});  in visitLocalsRetainedByReferenceBinding()
582         visitLocalsRetainedByReferenceBinding(Path, VD->getInit(),  in visitLocalsRetainedByReferenceBinding()
596       visitLocalsRetainedByInitializer(Path, U->getSubExpr(), Visit, true,  in visitLocalsRetainedByReferenceBinding()
602     visitLocalsRetainedByInitializer(Path,  in visitLocalsRetainedByReferenceBinding()
612       visitLocalsRetainedByReferenceBinding(Path, C->getTrueExpr(), RK, Visit,  in visitLocalsRetainedByReferenceBinding()
615       visitLocalsRetainedByReferenceBinding(Path, C->getFalseExpr(), RK, Visit,  in visitLocalsRetainedByReferenceBinding()
623         Visit(Path, Local(CLE), RK);  in visitLocalsRetainedByReferenceBinding()
637 static void visitLocalsRetainedByInitializer(IndirectLocalPath &Path,  in visitLocalsRetainedByInitializer()  argument
641   RevertToOldSizeRAII RAII(Path);  in visitLocalsRetainedByInitializer()
650       Path.push_back(  in visitLocalsRetainedByInitializer()
672         Path.push_back({IndirectLocalPathEntry::LValToRVal, CE});  in visitLocalsRetainedByInitializer()
674             Path, Init, RK_ReferenceBinding,  in visitLocalsRetainedByInitializer()
675             [&](IndirectLocalPath &Path, Local L, ReferenceKind RK) -> bool {  in visitLocalsRetainedByInitializer()  argument
679                     !isVarOnPath(Path, VD)) {  in visitLocalsRetainedByInitializer()
680                   Path.push_back({IndirectLocalPathEntry::VarInit, DRE, VD});  in visitLocalsRetainedByInitializer()
682                       Path, VD->getInit(), Visit, true, EnableLifetimeWarnings);  in visitLocalsRetainedByInitializer()
686                   visitLocalsRetainedByInitializer(Path, MTE->getSubExpr(),  in visitLocalsRetainedByInitializer()
720         Path.push_back({IndirectLocalPathEntry::AddressOf, CE});  in visitLocalsRetainedByInitializer()
721         return visitLocalsRetainedByReferenceBinding(Path, CE->getSubExpr(),  in visitLocalsRetainedByInitializer()
737     return visitLocalsRetainedByReferenceBinding(Path, ILE->getSubExpr(),  in visitLocalsRetainedByInitializer()
749       return visitLocalsRetainedByInitializer(Path, ILE->getInit(0), Visit,  in visitLocalsRetainedByInitializer()
755         visitLocalsRetainedByInitializer(Path, ILE->getInit(I), Visit,  in visitLocalsRetainedByInitializer()
769         visitLocalsRetainedByReferenceBinding(Path, ILE->getInit(0),  in visitLocalsRetainedByInitializer()
775           visitLocalsRetainedByInitializer(Path, ILE->getInit(Index), Visit,  in visitLocalsRetainedByInitializer()
785             visitLocalsRetainedByReferenceBinding(Path, SubInit,  in visitLocalsRetainedByInitializer()
793                 Path, SubInit, Visit, RevisitSubinits, EnableLifetimeWarnings);  in visitLocalsRetainedByInitializer()
811         Path.push_back({IndirectLocalPathEntry::LambdaCaptureInit, E, &Cap});  in visitLocalsRetainedByInitializer()
813         visitLocalsRetainedByReferenceBinding(Path, E, RK_ReferenceBinding,  in visitLocalsRetainedByInitializer()
816         visitLocalsRetainedByInitializer(Path, E, Visit, true,  in visitLocalsRetainedByInitializer()
819         Path.pop_back();  in visitLocalsRetainedByInitializer()
830         Path.push_back({IndirectLocalPathEntry::TemporaryCopy, Arg,  in visitLocalsRetainedByInitializer()
832         visitLocalsRetainedByInitializer(Path, Arg, Visit, true,  in visitLocalsRetainedByInitializer()
834         Path.pop_back();  in visitLocalsRetainedByInitializer()
841       handleGslAnnotatedTypes(Path, Init, Visit);  in visitLocalsRetainedByInitializer()
842     return visitLifetimeBoundArguments(Path, Init, Visit);  in visitLocalsRetainedByInitializer()
857       Path.push_back({IndirectLocalPathEntry::AddressOf, UO});  in visitLocalsRetainedByInitializer()
858       visitLocalsRetainedByReferenceBinding(Path, UO->getSubExpr(),  in visitLocalsRetainedByInitializer()
873       visitLocalsRetainedByInitializer(Path, BO->getLHS(), Visit, true,  in visitLocalsRetainedByInitializer()
876       visitLocalsRetainedByInitializer(Path, BO->getRHS(), Visit, true,  in visitLocalsRetainedByInitializer()
887       visitLocalsRetainedByInitializer(Path, C->getTrueExpr(), Visit, true,  in visitLocalsRetainedByInitializer()
890       visitLocalsRetainedByInitializer(Path, C->getFalseExpr(), Visit, true,  in visitLocalsRetainedByInitializer()
898       Visit(Path, Local(cast<BlockExpr>(Init)), RK_ReferenceBinding);  in visitLocalsRetainedByInitializer()
904     Visit(Path, Local(cast<AddrLabelExpr>(Init)), RK_ReferenceBinding);  in visitLocalsRetainedByInitializer()
928 shouldLifetimeExtendThroughPath(const IndirectLocalPath &Path) {  in shouldLifetimeExtendThroughPath()  argument
930   for (auto Elem : Path) {  in shouldLifetimeExtendThroughPath()
940 static SourceRange nextPathEntryRange(const IndirectLocalPath &Path, unsigned I,  in nextPathEntryRange()  argument
942   for (unsigned N = Path.size(); I != N; ++I) {  in nextPathEntryRange()
943     switch (Path[I].Kind) {  in nextPathEntryRange()
956       if (cast<VarDecl>(Path[I].D)->isImplicit())  in nextPathEntryRange()
960       return Path[I].E->getSourceRange();  in nextPathEntryRange()
963       if (!Path[I].Capture->capturesVariable())  in nextPathEntryRange()
965       return Path[I].E->getSourceRange();  in nextPathEntryRange()
971 static bool pathOnlyHandlesGslPointer(IndirectLocalPath &Path) {  in pathOnlyHandlesGslPointer()  argument
972   for (const auto &It : llvm::reverse(Path)) {  in pathOnlyHandlesGslPointer()
1004   auto TemporaryVisitor = [&](IndirectLocalPath &Path, Local L,  in checkExprLifetimeImpl()
1006     SourceRange DiagRange = nextPathEntryRange(Path, 0, L);  in checkExprLifetimeImpl()
1013     if (pathOnlyHandlesGslPointer(Path)) {  in checkExprLifetimeImpl()
1021         if (pathContainsInit(Path) || !IsLocalGslOwner)  in checkExprLifetimeImpl()
1055       switch (shouldLifetimeExtendThroughPath(Path)) {  in checkExprLifetimeImpl()
1079         if (pathContainsInit(Path))  in checkExprLifetimeImpl()
1092       if (!MTE || pathContainsInit(Path))  in checkExprLifetimeImpl()
1094       assert(shouldLifetimeExtendThroughPath(Path) ==  in checkExprLifetimeImpl()
1120           SemaRef.Diag(DiagLoc, shouldLifetimeExtendThroughPath(Path) !=  in checkExprLifetimeImpl()
1128           if (Path.empty() ||  in checkExprLifetimeImpl()
1129               Path.back().Kind != IndirectLocalPathEntry::DefaultInit) {  in checkExprLifetimeImpl()
1147         if (pathContainsInit(Path))  in checkExprLifetimeImpl()
1152         if (IsLocalGslOwner && pathOnlyHandlesGslPointer(Path))  in checkExprLifetimeImpl()
1233     for (unsigned I = 0; I != Path.size(); ++I) {  in checkExprLifetimeImpl()
1234       auto Elem = Path[I];  in checkExprLifetimeImpl()
1255             << FD << nextPathEntryRange(Path, I + 1, L);  in checkExprLifetimeImpl()
1263             << VD->getDeclName() << nextPathEntryRange(Path, I + 1, L);  in checkExprLifetimeImpl()
1277             << nextPathEntryRange(Path, I + 1, L);  in checkExprLifetimeImpl()
1287   llvm::SmallVector<IndirectLocalPathEntry, 8> Path;  in checkExprLifetimeImpl()  local
1290     Path.push_back({IndirectLocalPathEntry::GslPointerAssignment, Init});  in checkExprLifetimeImpl()
1293     visitLocalsRetainedByReferenceBinding(Path, Init, RK_ReferenceBinding,  in checkExprLifetimeImpl()
1298         Path, Init, TemporaryVisitor,  in checkExprLifetimeImpl()