summaryrefslogtreecommitdiff
path: root/lib/AST/APValue.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'lib/AST/APValue.cpp')
-rw-r--r--lib/AST/APValue.cpp841
1 files changed, 0 insertions, 841 deletions
diff --git a/lib/AST/APValue.cpp b/lib/AST/APValue.cpp
deleted file mode 100644
index 50f8d05dacb4f..0000000000000
--- a/lib/AST/APValue.cpp
+++ /dev/null
@@ -1,841 +0,0 @@
-//===--- APValue.cpp - Union class for APFloat/APSInt/Complex -------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements the APValue class.
-//
-//===----------------------------------------------------------------------===//
-
-#include "clang/AST/APValue.h"
-#include "clang/AST/ASTContext.h"
-#include "clang/AST/CharUnits.h"
-#include "clang/AST/DeclCXX.h"
-#include "clang/AST/Expr.h"
-#include "clang/AST/Type.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/raw_ostream.h"
-using namespace clang;
-
-/// The identity of a type_info object depends on the canonical unqualified
-/// type only.
-TypeInfoLValue::TypeInfoLValue(const Type *T)
- : T(T->getCanonicalTypeUnqualified().getTypePtr()) {}
-
-void TypeInfoLValue::print(llvm::raw_ostream &Out,
- const PrintingPolicy &Policy) const {
- Out << "typeid(";
- QualType(getType(), 0).print(Out, Policy);
- Out << ")";
-}
-
-static_assert(
- 1 << llvm::PointerLikeTypeTraits<TypeInfoLValue>::NumLowBitsAvailable <=
- alignof(Type),
- "Type is insufficiently aligned");
-
-APValue::LValueBase::LValueBase(const ValueDecl *P, unsigned I, unsigned V)
- : Ptr(P), Local{I, V} {}
-APValue::LValueBase::LValueBase(const Expr *P, unsigned I, unsigned V)
- : Ptr(P), Local{I, V} {}
-
-APValue::LValueBase APValue::LValueBase::getDynamicAlloc(DynamicAllocLValue LV,
- QualType Type) {
- LValueBase Base;
- Base.Ptr = LV;
- Base.DynamicAllocType = Type.getAsOpaquePtr();
- return Base;
-}
-
-APValue::LValueBase APValue::LValueBase::getTypeInfo(TypeInfoLValue LV,
- QualType TypeInfo) {
- LValueBase Base;
- Base.Ptr = LV;
- Base.TypeInfoType = TypeInfo.getAsOpaquePtr();
- return Base;
-}
-
-unsigned APValue::LValueBase::getCallIndex() const {
- return (is<TypeInfoLValue>() || is<DynamicAllocLValue>()) ? 0
- : Local.CallIndex;
-}
-
-unsigned APValue::LValueBase::getVersion() const {
- return (is<TypeInfoLValue>() || is<DynamicAllocLValue>()) ? 0 : Local.Version;
-}
-
-QualType APValue::LValueBase::getTypeInfoType() const {
- assert(is<TypeInfoLValue>() && "not a type_info lvalue");
- return QualType::getFromOpaquePtr(TypeInfoType);
-}
-
-QualType APValue::LValueBase::getDynamicAllocType() const {
- assert(is<DynamicAllocLValue>() && "not a dynamic allocation lvalue");
- return QualType::getFromOpaquePtr(DynamicAllocType);
-}
-
-namespace clang {
-bool operator==(const APValue::LValueBase &LHS,
- const APValue::LValueBase &RHS) {
- if (LHS.Ptr != RHS.Ptr)
- return false;
- if (LHS.is<TypeInfoLValue>())
- return true;
- return LHS.Local.CallIndex == RHS.Local.CallIndex &&
- LHS.Local.Version == RHS.Local.Version;
-}
-}
-
-namespace {
- struct LVBase {
- APValue::LValueBase Base;
- CharUnits Offset;
- unsigned PathLength;
- bool IsNullPtr : 1;
- bool IsOnePastTheEnd : 1;
- };
-}
-
-void *APValue::LValueBase::getOpaqueValue() const {
- return Ptr.getOpaqueValue();
-}
-
-bool APValue::LValueBase::isNull() const {
- return Ptr.isNull();
-}
-
-APValue::LValueBase::operator bool () const {
- return static_cast<bool>(Ptr);
-}
-
-clang::APValue::LValueBase
-llvm::DenseMapInfo<clang::APValue::LValueBase>::getEmptyKey() {
- return clang::APValue::LValueBase(
- DenseMapInfo<const ValueDecl*>::getEmptyKey());
-}
-
-clang::APValue::LValueBase
-llvm::DenseMapInfo<clang::APValue::LValueBase>::getTombstoneKey() {
- return clang::APValue::LValueBase(
- DenseMapInfo<const ValueDecl*>::getTombstoneKey());
-}
-
-namespace clang {
-llvm::hash_code hash_value(const APValue::LValueBase &Base) {
- if (Base.is<TypeInfoLValue>() || Base.is<DynamicAllocLValue>())
- return llvm::hash_value(Base.getOpaqueValue());
- return llvm::hash_combine(Base.getOpaqueValue(), Base.getCallIndex(),
- Base.getVersion());
-}
-}
-
-unsigned llvm::DenseMapInfo<clang::APValue::LValueBase>::getHashValue(
- const clang::APValue::LValueBase &Base) {
- return hash_value(Base);
-}
-
-bool llvm::DenseMapInfo<clang::APValue::LValueBase>::isEqual(
- const clang::APValue::LValueBase &LHS,
- const clang::APValue::LValueBase &RHS) {
- return LHS == RHS;
-}
-
-struct APValue::LV : LVBase {
- static const unsigned InlinePathSpace =
- (DataSize - sizeof(LVBase)) / sizeof(LValuePathEntry);
-
- /// Path - The sequence of base classes, fields and array indices to follow to
- /// walk from Base to the subobject. When performing GCC-style folding, there
- /// may not be such a path.
- union {
- LValuePathEntry Path[InlinePathSpace];
- LValuePathEntry *PathPtr;
- };
-
- LV() { PathLength = (unsigned)-1; }
- ~LV() { resizePath(0); }
-
- void resizePath(unsigned Length) {
- if (Length == PathLength)
- return;
- if (hasPathPtr())
- delete [] PathPtr;
- PathLength = Length;
- if (hasPathPtr())
- PathPtr = new LValuePathEntry[Length];
- }
-
- bool hasPath() const { return PathLength != (unsigned)-1; }
- bool hasPathPtr() const { return hasPath() && PathLength > InlinePathSpace; }
-
- LValuePathEntry *getPath() { return hasPathPtr() ? PathPtr : Path; }
- const LValuePathEntry *getPath() const {
- return hasPathPtr() ? PathPtr : Path;
- }
-};
-
-namespace {
- struct MemberPointerBase {
- llvm::PointerIntPair<const ValueDecl*, 1, bool> MemberAndIsDerivedMember;
- unsigned PathLength;
- };
-}
-
-struct APValue::MemberPointerData : MemberPointerBase {
- static const unsigned InlinePathSpace =
- (DataSize - sizeof(MemberPointerBase)) / sizeof(const CXXRecordDecl*);
- typedef const CXXRecordDecl *PathElem;
- union {
- PathElem Path[InlinePathSpace];
- PathElem *PathPtr;
- };
-
- MemberPointerData() { PathLength = 0; }
- ~MemberPointerData() { resizePath(0); }
-
- void resizePath(unsigned Length) {
- if (Length == PathLength)
- return;
- if (hasPathPtr())
- delete [] PathPtr;
- PathLength = Length;
- if (hasPathPtr())
- PathPtr = new PathElem[Length];
- }
-
- bool hasPathPtr() const { return PathLength > InlinePathSpace; }
-
- PathElem *getPath() { return hasPathPtr() ? PathPtr : Path; }
- const PathElem *getPath() const {
- return hasPathPtr() ? PathPtr : Path;
- }
-};
-
-// FIXME: Reduce the malloc traffic here.
-
-APValue::Arr::Arr(unsigned NumElts, unsigned Size) :
- Elts(new APValue[NumElts + (NumElts != Size ? 1 : 0)]),
- NumElts(NumElts), ArrSize(Size) {}
-APValue::Arr::~Arr() { delete [] Elts; }
-
-APValue::StructData::StructData(unsigned NumBases, unsigned NumFields) :
- Elts(new APValue[NumBases+NumFields]),
- NumBases(NumBases), NumFields(NumFields) {}
-APValue::StructData::~StructData() {
- delete [] Elts;
-}
-
-APValue::UnionData::UnionData() : Field(nullptr), Value(new APValue) {}
-APValue::UnionData::~UnionData () {
- delete Value;
-}
-
-APValue::APValue(const APValue &RHS) : Kind(None) {
- switch (RHS.getKind()) {
- case None:
- case Indeterminate:
- Kind = RHS.getKind();
- break;
- case Int:
- MakeInt();
- setInt(RHS.getInt());
- break;
- case Float:
- MakeFloat();
- setFloat(RHS.getFloat());
- break;
- case FixedPoint: {
- APFixedPoint FXCopy = RHS.getFixedPoint();
- MakeFixedPoint(std::move(FXCopy));
- break;
- }
- case Vector:
- MakeVector();
- setVector(((const Vec *)(const char *)RHS.Data.buffer)->Elts,
- RHS.getVectorLength());
- break;
- case ComplexInt:
- MakeComplexInt();
- setComplexInt(RHS.getComplexIntReal(), RHS.getComplexIntImag());
- break;
- case ComplexFloat:
- MakeComplexFloat();
- setComplexFloat(RHS.getComplexFloatReal(), RHS.getComplexFloatImag());
- break;
- case LValue:
- MakeLValue();
- if (RHS.hasLValuePath())
- setLValue(RHS.getLValueBase(), RHS.getLValueOffset(), RHS.getLValuePath(),
- RHS.isLValueOnePastTheEnd(), RHS.isNullPointer());
- else
- setLValue(RHS.getLValueBase(), RHS.getLValueOffset(), NoLValuePath(),
- RHS.isNullPointer());
- break;
- case Array:
- MakeArray(RHS.getArrayInitializedElts(), RHS.getArraySize());
- for (unsigned I = 0, N = RHS.getArrayInitializedElts(); I != N; ++I)
- getArrayInitializedElt(I) = RHS.getArrayInitializedElt(I);
- if (RHS.hasArrayFiller())
- getArrayFiller() = RHS.getArrayFiller();
- break;
- case Struct:
- MakeStruct(RHS.getStructNumBases(), RHS.getStructNumFields());
- for (unsigned I = 0, N = RHS.getStructNumBases(); I != N; ++I)
- getStructBase(I) = RHS.getStructBase(I);
- for (unsigned I = 0, N = RHS.getStructNumFields(); I != N; ++I)
- getStructField(I) = RHS.getStructField(I);
- break;
- case Union:
- MakeUnion();
- setUnion(RHS.getUnionField(), RHS.getUnionValue());
- break;
- case MemberPointer:
- MakeMemberPointer(RHS.getMemberPointerDecl(),
- RHS.isMemberPointerToDerivedMember(),
- RHS.getMemberPointerPath());
- break;
- case AddrLabelDiff:
- MakeAddrLabelDiff();
- setAddrLabelDiff(RHS.getAddrLabelDiffLHS(), RHS.getAddrLabelDiffRHS());
- break;
- }
-}
-
-void APValue::DestroyDataAndMakeUninit() {
- if (Kind == Int)
- ((APSInt*)(char*)Data.buffer)->~APSInt();
- else if (Kind == Float)
- ((APFloat*)(char*)Data.buffer)->~APFloat();
- else if (Kind == FixedPoint)
- ((APFixedPoint *)(char *)Data.buffer)->~APFixedPoint();
- else if (Kind == Vector)
- ((Vec*)(char*)Data.buffer)->~Vec();
- else if (Kind == ComplexInt)
- ((ComplexAPSInt*)(char*)Data.buffer)->~ComplexAPSInt();
- else if (Kind == ComplexFloat)
- ((ComplexAPFloat*)(char*)Data.buffer)->~ComplexAPFloat();
- else if (Kind == LValue)
- ((LV*)(char*)Data.buffer)->~LV();
- else if (Kind == Array)
- ((Arr*)(char*)Data.buffer)->~Arr();
- else if (Kind == Struct)
- ((StructData*)(char*)Data.buffer)->~StructData();
- else if (Kind == Union)
- ((UnionData*)(char*)Data.buffer)->~UnionData();
- else if (Kind == MemberPointer)
- ((MemberPointerData*)(char*)Data.buffer)->~MemberPointerData();
- else if (Kind == AddrLabelDiff)
- ((AddrLabelDiffData*)(char*)Data.buffer)->~AddrLabelDiffData();
- Kind = None;
-}
-
-bool APValue::needsCleanup() const {
- switch (getKind()) {
- case None:
- case Indeterminate:
- case AddrLabelDiff:
- return false;
- case Struct:
- case Union:
- case Array:
- case Vector:
- return true;
- case Int:
- return getInt().needsCleanup();
- case Float:
- return getFloat().needsCleanup();
- case FixedPoint:
- return getFixedPoint().getValue().needsCleanup();
- case ComplexFloat:
- assert(getComplexFloatImag().needsCleanup() ==
- getComplexFloatReal().needsCleanup() &&
- "In _Complex float types, real and imaginary values always have the "
- "same size.");
- return getComplexFloatReal().needsCleanup();
- case ComplexInt:
- assert(getComplexIntImag().needsCleanup() ==
- getComplexIntReal().needsCleanup() &&
- "In _Complex int types, real and imaginary values must have the "
- "same size.");
- return getComplexIntReal().needsCleanup();
- case LValue:
- return reinterpret_cast<const LV *>(Data.buffer)->hasPathPtr();
- case MemberPointer:
- return reinterpret_cast<const MemberPointerData *>(Data.buffer)
- ->hasPathPtr();
- }
- llvm_unreachable("Unknown APValue kind!");
-}
-
-void APValue::swap(APValue &RHS) {
- std::swap(Kind, RHS.Kind);
- char TmpData[DataSize];
- memcpy(TmpData, Data.buffer, DataSize);
- memcpy(Data.buffer, RHS.Data.buffer, DataSize);
- memcpy(RHS.Data.buffer, TmpData, DataSize);
-}
-
-LLVM_DUMP_METHOD void APValue::dump() const {
- dump(llvm::errs());
- llvm::errs() << '\n';
-}
-
-static double GetApproxValue(const llvm::APFloat &F) {
- llvm::APFloat V = F;
- bool ignored;
- V.convert(llvm::APFloat::IEEEdouble(), llvm::APFloat::rmNearestTiesToEven,
- &ignored);
- return V.convertToDouble();
-}
-
-void APValue::dump(raw_ostream &OS) const {
- switch (getKind()) {
- case None:
- OS << "None";
- return;
- case Indeterminate:
- OS << "Indeterminate";
- return;
- case Int:
- OS << "Int: " << getInt();
- return;
- case Float:
- OS << "Float: " << GetApproxValue(getFloat());
- return;
- case FixedPoint:
- OS << "FixedPoint : " << getFixedPoint();
- return;
- case Vector:
- OS << "Vector: ";
- getVectorElt(0).dump(OS);
- for (unsigned i = 1; i != getVectorLength(); ++i) {
- OS << ", ";
- getVectorElt(i).dump(OS);
- }
- return;
- case ComplexInt:
- OS << "ComplexInt: " << getComplexIntReal() << ", " << getComplexIntImag();
- return;
- case ComplexFloat:
- OS << "ComplexFloat: " << GetApproxValue(getComplexFloatReal())
- << ", " << GetApproxValue(getComplexFloatImag());
- return;
- case LValue:
- OS << "LValue: <todo>";
- return;
- case Array:
- OS << "Array: ";
- for (unsigned I = 0, N = getArrayInitializedElts(); I != N; ++I) {
- getArrayInitializedElt(I).dump(OS);
- if (I != getArraySize() - 1) OS << ", ";
- }
- if (hasArrayFiller()) {
- OS << getArraySize() - getArrayInitializedElts() << " x ";
- getArrayFiller().dump(OS);
- }
- return;
- case Struct:
- OS << "Struct ";
- if (unsigned N = getStructNumBases()) {
- OS << " bases: ";
- getStructBase(0).dump(OS);
- for (unsigned I = 1; I != N; ++I) {
- OS << ", ";
- getStructBase(I).dump(OS);
- }
- }
- if (unsigned N = getStructNumFields()) {
- OS << " fields: ";
- getStructField(0).dump(OS);
- for (unsigned I = 1; I != N; ++I) {
- OS << ", ";
- getStructField(I).dump(OS);
- }
- }
- return;
- case Union:
- OS << "Union: ";
- getUnionValue().dump(OS);
- return;
- case MemberPointer:
- OS << "MemberPointer: <todo>";
- return;
- case AddrLabelDiff:
- OS << "AddrLabelDiff: <todo>";
- return;
- }
- llvm_unreachable("Unknown APValue kind!");
-}
-
-void APValue::printPretty(raw_ostream &Out, const ASTContext &Ctx,
- QualType Ty) const {
- switch (getKind()) {
- case APValue::None:
- Out << "<out of lifetime>";
- return;
- case APValue::Indeterminate:
- Out << "<uninitialized>";
- return;
- case APValue::Int:
- if (Ty->isBooleanType())
- Out << (getInt().getBoolValue() ? "true" : "false");
- else
- Out << getInt();
- return;
- case APValue::Float:
- Out << GetApproxValue(getFloat());
- return;
- case APValue::FixedPoint:
- Out << getFixedPoint();
- return;
- case APValue::Vector: {
- Out << '{';
- QualType ElemTy = Ty->castAs<VectorType>()->getElementType();
- getVectorElt(0).printPretty(Out, Ctx, ElemTy);
- for (unsigned i = 1; i != getVectorLength(); ++i) {
- Out << ", ";
- getVectorElt(i).printPretty(Out, Ctx, ElemTy);
- }
- Out << '}';
- return;
- }
- case APValue::ComplexInt:
- Out << getComplexIntReal() << "+" << getComplexIntImag() << "i";
- return;
- case APValue::ComplexFloat:
- Out << GetApproxValue(getComplexFloatReal()) << "+"
- << GetApproxValue(getComplexFloatImag()) << "i";
- return;
- case APValue::LValue: {
- bool IsReference = Ty->isReferenceType();
- QualType InnerTy
- = IsReference ? Ty.getNonReferenceType() : Ty->getPointeeType();
- if (InnerTy.isNull())
- InnerTy = Ty;
-
- LValueBase Base = getLValueBase();
- if (!Base) {
- if (isNullPointer()) {
- Out << (Ctx.getLangOpts().CPlusPlus11 ? "nullptr" : "0");
- } else if (IsReference) {
- Out << "*(" << InnerTy.stream(Ctx.getPrintingPolicy()) << "*)"
- << getLValueOffset().getQuantity();
- } else {
- Out << "(" << Ty.stream(Ctx.getPrintingPolicy()) << ")"
- << getLValueOffset().getQuantity();
- }
- return;
- }
-
- if (!hasLValuePath()) {
- // No lvalue path: just print the offset.
- CharUnits O = getLValueOffset();
- CharUnits S = Ctx.getTypeSizeInChars(InnerTy);
- if (!O.isZero()) {
- if (IsReference)
- Out << "*(";
- if (O % S) {
- Out << "(char*)";
- S = CharUnits::One();
- }
- Out << '&';
- } else if (!IsReference) {
- Out << '&';
- }
-
- if (const ValueDecl *VD = Base.dyn_cast<const ValueDecl*>())
- Out << *VD;
- else if (TypeInfoLValue TI = Base.dyn_cast<TypeInfoLValue>()) {
- TI.print(Out, Ctx.getPrintingPolicy());
- } else if (DynamicAllocLValue DA = Base.dyn_cast<DynamicAllocLValue>()) {
- Out << "{*new "
- << Base.getDynamicAllocType().stream(Ctx.getPrintingPolicy()) << "#"
- << DA.getIndex() << "}";
- } else {
- assert(Base.get<const Expr *>() != nullptr &&
- "Expecting non-null Expr");
- Base.get<const Expr*>()->printPretty(Out, nullptr,
- Ctx.getPrintingPolicy());
- }
-
- if (!O.isZero()) {
- Out << " + " << (O / S);
- if (IsReference)
- Out << ')';
- }
- return;
- }
-
- // We have an lvalue path. Print it out nicely.
- if (!IsReference)
- Out << '&';
- else if (isLValueOnePastTheEnd())
- Out << "*(&";
-
- QualType ElemTy;
- if (const ValueDecl *VD = Base.dyn_cast<const ValueDecl*>()) {
- Out << *VD;
- ElemTy = VD->getType();
- } else if (TypeInfoLValue TI = Base.dyn_cast<TypeInfoLValue>()) {
- TI.print(Out, Ctx.getPrintingPolicy());
- ElemTy = Base.getTypeInfoType();
- } else if (DynamicAllocLValue DA = Base.dyn_cast<DynamicAllocLValue>()) {
- Out << "{*new "
- << Base.getDynamicAllocType().stream(Ctx.getPrintingPolicy()) << "#"
- << DA.getIndex() << "}";
- ElemTy = Base.getDynamicAllocType();
- } else {
- const Expr *E = Base.get<const Expr*>();
- assert(E != nullptr && "Expecting non-null Expr");
- E->printPretty(Out, nullptr, Ctx.getPrintingPolicy());
- // FIXME: This is wrong if E is a MaterializeTemporaryExpr with an lvalue
- // adjustment.
- ElemTy = E->getType();
- }
-
- ArrayRef<LValuePathEntry> Path = getLValuePath();
- const CXXRecordDecl *CastToBase = nullptr;
- for (unsigned I = 0, N = Path.size(); I != N; ++I) {
- if (ElemTy->getAs<RecordType>()) {
- // The lvalue refers to a class type, so the next path entry is a base
- // or member.
- const Decl *BaseOrMember = Path[I].getAsBaseOrMember().getPointer();
- if (const CXXRecordDecl *RD = dyn_cast<CXXRecordDecl>(BaseOrMember)) {
- CastToBase = RD;
- ElemTy = Ctx.getRecordType(RD);
- } else {
- const ValueDecl *VD = cast<ValueDecl>(BaseOrMember);
- Out << ".";
- if (CastToBase)
- Out << *CastToBase << "::";
- Out << *VD;
- ElemTy = VD->getType();
- }
- } else {
- // The lvalue must refer to an array.
- Out << '[' << Path[I].getAsArrayIndex() << ']';
- ElemTy = Ctx.getAsArrayType(ElemTy)->getElementType();
- }
- }
-
- // Handle formatting of one-past-the-end lvalues.
- if (isLValueOnePastTheEnd()) {
- // FIXME: If CastToBase is non-0, we should prefix the output with
- // "(CastToBase*)".
- Out << " + 1";
- if (IsReference)
- Out << ')';
- }
- return;
- }
- case APValue::Array: {
- const ArrayType *AT = Ctx.getAsArrayType(Ty);
- QualType ElemTy = AT->getElementType();
- Out << '{';
- if (unsigned N = getArrayInitializedElts()) {
- getArrayInitializedElt(0).printPretty(Out, Ctx, ElemTy);
- for (unsigned I = 1; I != N; ++I) {
- Out << ", ";
- if (I == 10) {
- // Avoid printing out the entire contents of large arrays.
- Out << "...";
- break;
- }
- getArrayInitializedElt(I).printPretty(Out, Ctx, ElemTy);
- }
- }
- Out << '}';
- return;
- }
- case APValue::Struct: {
- Out << '{';
- const RecordDecl *RD = Ty->castAs<RecordType>()->getDecl();
- bool First = true;
- if (unsigned N = getStructNumBases()) {
- const CXXRecordDecl *CD = cast<CXXRecordDecl>(RD);
- CXXRecordDecl::base_class_const_iterator BI = CD->bases_begin();
- for (unsigned I = 0; I != N; ++I, ++BI) {
- assert(BI != CD->bases_end());
- if (!First)
- Out << ", ";
- getStructBase(I).printPretty(Out, Ctx, BI->getType());
- First = false;
- }
- }
- for (const auto *FI : RD->fields()) {
- if (!First)
- Out << ", ";
- if (FI->isUnnamedBitfield()) continue;
- getStructField(FI->getFieldIndex()).
- printPretty(Out, Ctx, FI->getType());
- First = false;
- }
- Out << '}';
- return;
- }
- case APValue::Union:
- Out << '{';
- if (const FieldDecl *FD = getUnionField()) {
- Out << "." << *FD << " = ";
- getUnionValue().printPretty(Out, Ctx, FD->getType());
- }
- Out << '}';
- return;
- case APValue::MemberPointer:
- // FIXME: This is not enough to unambiguously identify the member in a
- // multiple-inheritance scenario.
- if (const ValueDecl *VD = getMemberPointerDecl()) {
- Out << '&' << *cast<CXXRecordDecl>(VD->getDeclContext()) << "::" << *VD;
- return;
- }
- Out << "0";
- return;
- case APValue::AddrLabelDiff:
- Out << "&&" << getAddrLabelDiffLHS()->getLabel()->getName();
- Out << " - ";
- Out << "&&" << getAddrLabelDiffRHS()->getLabel()->getName();
- return;
- }
- llvm_unreachable("Unknown APValue kind!");
-}
-
-std::string APValue::getAsString(const ASTContext &Ctx, QualType Ty) const {
- std::string Result;
- llvm::raw_string_ostream Out(Result);
- printPretty(Out, Ctx, Ty);
- Out.flush();
- return Result;
-}
-
-bool APValue::toIntegralConstant(APSInt &Result, QualType SrcTy,
- const ASTContext &Ctx) const {
- if (isInt()) {
- Result = getInt();
- return true;
- }
-
- if (isLValue() && isNullPointer()) {
- Result = Ctx.MakeIntValue(Ctx.getTargetNullPointerValue(SrcTy), SrcTy);
- return true;
- }
-
- if (isLValue() && !getLValueBase()) {
- Result = Ctx.MakeIntValue(getLValueOffset().getQuantity(), SrcTy);
- return true;
- }
-
- return false;
-}
-
-const APValue::LValueBase APValue::getLValueBase() const {
- assert(isLValue() && "Invalid accessor");
- return ((const LV*)(const void*)Data.buffer)->Base;
-}
-
-bool APValue::isLValueOnePastTheEnd() const {
- assert(isLValue() && "Invalid accessor");
- return ((const LV*)(const void*)Data.buffer)->IsOnePastTheEnd;
-}
-
-CharUnits &APValue::getLValueOffset() {
- assert(isLValue() && "Invalid accessor");
- return ((LV*)(void*)Data.buffer)->Offset;
-}
-
-bool APValue::hasLValuePath() const {
- assert(isLValue() && "Invalid accessor");
- return ((const LV*)(const char*)Data.buffer)->hasPath();
-}
-
-ArrayRef<APValue::LValuePathEntry> APValue::getLValuePath() const {
- assert(isLValue() && hasLValuePath() && "Invalid accessor");
- const LV &LVal = *((const LV*)(const char*)Data.buffer);
- return llvm::makeArrayRef(LVal.getPath(), LVal.PathLength);
-}
-
-unsigned APValue::getLValueCallIndex() const {
- assert(isLValue() && "Invalid accessor");
- return ((const LV*)(const char*)Data.buffer)->Base.getCallIndex();
-}
-
-unsigned APValue::getLValueVersion() const {
- assert(isLValue() && "Invalid accessor");
- return ((const LV*)(const char*)Data.buffer)->Base.getVersion();
-}
-
-bool APValue::isNullPointer() const {
- assert(isLValue() && "Invalid usage");
- return ((const LV*)(const char*)Data.buffer)->IsNullPtr;
-}
-
-void APValue::setLValue(LValueBase B, const CharUnits &O, NoLValuePath,
- bool IsNullPtr) {
- assert(isLValue() && "Invalid accessor");
- LV &LVal = *((LV*)(char*)Data.buffer);
- LVal.Base = B;
- LVal.IsOnePastTheEnd = false;
- LVal.Offset = O;
- LVal.resizePath((unsigned)-1);
- LVal.IsNullPtr = IsNullPtr;
-}
-
-void APValue::setLValue(LValueBase B, const CharUnits &O,
- ArrayRef<LValuePathEntry> Path, bool IsOnePastTheEnd,
- bool IsNullPtr) {
- assert(isLValue() && "Invalid accessor");
- LV &LVal = *((LV*)(char*)Data.buffer);
- LVal.Base = B;
- LVal.IsOnePastTheEnd = IsOnePastTheEnd;
- LVal.Offset = O;
- LVal.resizePath(Path.size());
- memcpy(LVal.getPath(), Path.data(), Path.size() * sizeof(LValuePathEntry));
- LVal.IsNullPtr = IsNullPtr;
-}
-
-const ValueDecl *APValue::getMemberPointerDecl() const {
- assert(isMemberPointer() && "Invalid accessor");
- const MemberPointerData &MPD =
- *((const MemberPointerData *)(const char *)Data.buffer);
- return MPD.MemberAndIsDerivedMember.getPointer();
-}
-
-bool APValue::isMemberPointerToDerivedMember() const {
- assert(isMemberPointer() && "Invalid accessor");
- const MemberPointerData &MPD =
- *((const MemberPointerData *)(const char *)Data.buffer);
- return MPD.MemberAndIsDerivedMember.getInt();
-}
-
-ArrayRef<const CXXRecordDecl*> APValue::getMemberPointerPath() const {
- assert(isMemberPointer() && "Invalid accessor");
- const MemberPointerData &MPD =
- *((const MemberPointerData *)(const char *)Data.buffer);
- return llvm::makeArrayRef(MPD.getPath(), MPD.PathLength);
-}
-
-void APValue::MakeLValue() {
- assert(isAbsent() && "Bad state change");
- static_assert(sizeof(LV) <= DataSize, "LV too big");
- new ((void*)(char*)Data.buffer) LV();
- Kind = LValue;
-}
-
-void APValue::MakeArray(unsigned InitElts, unsigned Size) {
- assert(isAbsent() && "Bad state change");
- new ((void*)(char*)Data.buffer) Arr(InitElts, Size);
- Kind = Array;
-}
-
-void APValue::MakeMemberPointer(const ValueDecl *Member, bool IsDerivedMember,
- ArrayRef<const CXXRecordDecl*> Path) {
- assert(isAbsent() && "Bad state change");
- MemberPointerData *MPD = new ((void*)(char*)Data.buffer) MemberPointerData;
- Kind = MemberPointer;
- MPD->MemberAndIsDerivedMember.setPointer(Member);
- MPD->MemberAndIsDerivedMember.setInt(IsDerivedMember);
- MPD->resizePath(Path.size());
- memcpy(MPD->getPath(), Path.data(), Path.size()*sizeof(const CXXRecordDecl*));
-}
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-04 02:30:37 +0000