1 //===--- Pointer.cpp - Types for the constexpr VM ---------------*- C++ -*-===//
9 #include "Pointer.h"
25 Pointer::Pointer(Block *Pointee)  in Pointer()  function in Pointer
26     : Pointer(Pointee, Pointee->getDescriptor()->getMetadataSize(),  in Pointer()
29 Pointer::Pointer(Block *Pointee, uint64_t BaseAndOffset)  in Pointer()  function in Pointer
30     : Pointer(Pointee, BaseAndOffset, BaseAndOffset) {}  in Pointer()
32 Pointer::Pointer(const Pointer &P)  in Pointer()  function in Pointer
40 Pointer::Pointer(Block *Pointee, unsigned Base, uint64_t Offset)  in Pointer()  function in Pointer
50 Pointer::Pointer(Pointer &&P)  in Pointer()  function in Pointer
58 Pointer::~Pointer() {  in ~Pointer()
69 void Pointer::operator=(const Pointer &P) {  in operator =()
71   // this pointer from the block.  in operator =()
106 void Pointer::operator=(Pointer &&P) {  in operator =()
108   // this pointer from the block.  in operator =()
143 APValue Pointer::toAPValue(const ASTContext &ASTCtx) const {  in toAPValue()
215   Pointer Ptr = *this;  in toAPValue()
290   // We assemble the LValuePath starting from the innermost pointer to the  in toAPValue()
302 void Pointer::print(llvm::raw_ostream &OS) const {  in print()
341 size_t Pointer::computeOffsetForComparison() const {  in computeOffsetForComparison()
351   Pointer P = *this;  in computeOffsetForComparison()
398 std::string Pointer::toDiagnosticString(const ASTContext &Ctx) const {  in toDiagnosticString()
411 bool Pointer::isInitialized() const {  in isInitialized()
422          "Cannot check if null pointer was initialized");  in isInitialized()
447 void Pointer::initialize() const {  in initialize()
451   assert(PointeeStorage.BS.Pointee && "Cannot initialize null pointer");  in initialize()
495 void Pointer::activate() const {  in activate()
505   auto activate = [](Pointer &P) -> void {  in activate()
509   std::function<void(Pointer &)> deactivate;  in activate()
510   deactivate = [&deactivate](Pointer &P) -> void {  in activate()
515         Pointer FieldPtr = P.atField(F.Offset);  in activate()
523   Pointer B = *this;  in activate()
527     // When walking up the pointer chain, deactivate  in activate()
529     Pointer Cur = B;  in activate()
533         Pointer FieldPtr = B.atField(F.Offset);  in activate()
541 void Pointer::deactivate() const {  in deactivate()
545 bool Pointer::hasSameBase(const Pointer &A, const Pointer &B) {  in hasSameBase()
566 bool Pointer::pointToSameBlock(const Pointer &A, const Pointer &B) {  in pointToSameBlock()
572 bool Pointer::hasSameArray(const Pointer &A, const Pointer &B) {  in hasSameArray()
578 bool Pointer::pointsToLiteral() const {  in pointsToLiteral()
589 bool Pointer::pointsToStringLiteral() const {  in pointsToStringLiteral()
600 std::optional<std::pair<Pointer, Pointer>>
601 Pointer::computeSplitPoint(const Pointer &A, const Pointer &B) {  in computeSplitPoint()
613   auto getBase = [](const Pointer &P) -> Pointer {  in computeSplitPoint()
619   Pointer IterA = A;  in computeSplitPoint()
620   Pointer IterB = B;  in computeSplitPoint()
621   Pointer CurA = IterA;  in computeSplitPoint()
622   Pointer CurB = IterB;  in computeSplitPoint()
642 std::optional<APValue> Pointer::toRValue(const Context &Ctx,  in toRValue()
647   std::function<bool(QualType, const Pointer &, APValue &)> Composite;  in toRValue()
648   Composite = [&Composite, &Ctx, &ASTCtx](QualType Ty, const Pointer &Ptr,  in toRValue()
673           const Pointer &FP = Ptr.atField(F.Offset);  in toRValue()
696           const Pointer &FP = Ptr.atField(FD->Offset);  in toRValue()
709           const Pointer &BP = Ptr.atField(BD->Offset);  in toRValue()
716           const Pointer &VP = Ptr.atField(VD->Offset);  in toRValue()
736         const Pointer &EP = Ptr.atIndex(I);  in toRValue()