#include "clang/AST/ASTContext.h"
#include "clang/AST/ASTStructuralEquivalence.h"
#include "clang/AST/CXXInheritance.h"
#include "clang/AST/ExprCXX.h"
#include "clang/AST/ExprObjC.h"
#include "clang/AST/RecordLayout.h"
#include "clang/Basic/PartialDiagnostic.h"
#include "clang/Basic/TargetInfo.h"
#include "clang/Lex/Preprocessor.h"
#include "clang/Sema/Initialization.h"
#include "clang/Sema/SemaHLSL.h"
#include "clang/Sema/SemaObjC.h"
#include "clang/Sema/SemaRISCV.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringExtras.h"
#include <set>

Enumerations
enum	TryCastResult { TC_NotApplicable , TC_Success , TC_Extension , TC_Failed }
enum	CastType { CT_Const , CT_Static , CT_Reinterpret , CT_Dynamic , CT_CStyle , CT_Functional , CT_Addrspace }

Functions
static bool	isValidCast (TryCastResult TCR)
static void	DiagnoseCastQual (Sema &Self, const ExprResult &SrcExpr, QualType DestType)
	DiagnoseCastQual - Warn whenever casts discards a qualifiers, be it either const, volatile or both.
static TryCastResult	TryLValueToRValueCast (Sema &Self, Expr *SrcExpr, QualType DestType, bool CStyle, SourceRange OpRange, CastKind &Kind, CXXCastPath &BasePath, unsigned &msg)
	Tests whether a conversion according to N2844 is valid.
static TryCastResult	TryStaticReferenceDowncast (Sema &Self, Expr *SrcExpr, QualType DestType, bool CStyle, CastOperation::OpRangeType OpRange, unsigned &msg, CastKind &Kind, CXXCastPath &BasePath)
	Tests whether a conversion according to C++ 5.2.9p5 is valid.
static TryCastResult	TryStaticPointerDowncast (Sema &Self, QualType SrcType, QualType DestType, bool CStyle, CastOperation::OpRangeType OpRange, unsigned &msg, CastKind &Kind, CXXCastPath &BasePath)
	Tests whether a conversion according to C++ 5.2.9p8 is valid.
static TryCastResult	TryStaticDowncast (Sema &Self, CanQualType SrcType, CanQualType DestType, bool CStyle, CastOperation::OpRangeType OpRange, QualType OrigSrcType, QualType OrigDestType, unsigned &msg, CastKind &Kind, CXXCastPath &BasePath)
	TryStaticDowncast - Common functionality of TryStaticReferenceDowncast and TryStaticPointerDowncast.
static TryCastResult	TryStaticMemberPointerUpcast (Sema &Self, ExprResult &SrcExpr, QualType SrcType, QualType DestType, bool CStyle, CastOperation::OpRangeType OpRange, unsigned &msg, CastKind &Kind, CXXCastPath &BasePath)
	TryStaticMemberPointerUpcast - Tests whether a conversion according to C++ 5.2.9p9 is valid:
static TryCastResult	TryStaticImplicitCast (Sema &Self, ExprResult &SrcExpr, QualType DestType, CheckedConversionKind CCK, CastOperation::OpRangeType OpRange, unsigned &msg, CastKind &Kind, bool ListInitialization)
	TryStaticImplicitCast - Tests whether a conversion according to C++ 5.2.9p2 is valid:
static TryCastResult	TryStaticCast (Sema &Self, ExprResult &SrcExpr, QualType DestType, CheckedConversionKind CCK, CastOperation::OpRangeType OpRange, unsigned &msg, CastKind &Kind, CXXCastPath &BasePath, bool ListInitialization)
	TryStaticCast - Check if a static cast can be performed, and do so if possible.
static TryCastResult	TryConstCast (Sema &Self, ExprResult &SrcExpr, QualType DestType, bool CStyle, unsigned &msg)
	TryConstCast - See if a const_cast from source to destination is allowed, and perform it if it is.
static TryCastResult	TryReinterpretCast (Sema &Self, ExprResult &SrcExpr, QualType DestType, bool CStyle, CastOperation::OpRangeType OpRange, unsigned &msg, CastKind &Kind)
static TryCastResult	TryAddressSpaceCast (Sema &Self, ExprResult &SrcExpr, QualType DestType, bool CStyle, unsigned &msg, CastKind &Kind)
static bool	tryDiagnoseOverloadedCast (Sema &S, CastType CT, CastOperation::OpRangeType range, Expr *src, QualType destType, bool listInitialization)
	Try to diagnose a failed overloaded cast.
static void	diagnoseBadCast (Sema &S, unsigned msg, CastType castType, CastOperation::OpRangeType opRange, Expr *src, QualType destType, bool listInitialization)
	Diagnose a failed cast.
static CastAwayConstnessKind	unwrapCastAwayConstnessLevel (ASTContext &Context, QualType &T1, QualType &T2)
	Unwrap one level of types for CastsAwayConstness.
static CastAwayConstnessKind	CastsAwayConstness (Sema &Self, QualType SrcType, QualType DestType, bool CheckCVR, bool CheckObjCLifetime, QualType TheOffendingSrcType=nullptr, QualType TheOffendingDestType=nullptr, Qualifiers *CastAwayQualifiers=nullptr)
	Check if the pointer conversion from SrcType to DestType casts away constness as defined in C++ [expr.const.cast].
static TryCastResult	getCastAwayConstnessCastKind (CastAwayConstnessKind CACK, unsigned &DiagID)
static void	DiagnoseReinterpretUpDownCast (Sema &Self, const Expr *SrcExpr, QualType DestType, CastOperation::OpRangeType OpRange)
	Check that a reinterpret_cast<DestType>(SrcExpr) is not used as upcast or downcast between respective pointers or references.
static bool	argTypeIsABIEquivalent (QualType SrcType, QualType DestType, ASTContext &Context)
static unsigned int	checkCastFunctionType (Sema &Self, const ExprResult &SrcExpr, QualType DestType)
static bool	IsAddressSpaceConversion (QualType SrcType, QualType DestType)
static void	DiagnoseCastOfObjCSEL (Sema &Self, const ExprResult &SrcExpr, QualType DestType)
static void	DiagnoseCallingConvCast (Sema &Self, const ExprResult &SrcExpr, QualType DstType, CastOperation::OpRangeType OpRange)
	Diagnose casts that change the calling convention of a pointer to a function defined in the current TU.
static void	checkIntToPointerCast (bool CStyle, const SourceRange &OpRange, const Expr *SrcExpr, QualType DestType, Sema &Self)
static bool	fixOverloadedReinterpretCastExpr (Sema &Self, QualType DestType, ExprResult &Result)
static void	DiagnoseBadFunctionCast (Sema &Self, const ExprResult &SrcExpr, QualType DestType)
	DiagnoseBadFunctionCast - Warn whenever a function call is cast to a non-matching type.

Enumeration Type Documentation

◆ CastType

enum CastType

Enumerator
CT_Const	const_cast
CT_Static	static_cast
CT_Reinterpret	reinterpret_cast
CT_Dynamic	dynamic_cast
CT_CStyle	(Type)expr
CT_Functional	Type(expr)
CT_Addrspace	addrspace_cast

Definition at line 49 of file SemaCast.cpp.

◆ TryCastResult

enum TryCastResult

Enumerator
TC_NotApplicable	The cast method is not applicable.
TC_Success	The cast method is appropriate and successful.
TC_Extension	The cast method is appropriate and accepted as a language extension.
TC_Failed	The cast method is appropriate, but failed. A diagnostic has been emitted.

Definition at line 36 of file SemaCast.cpp.

Function Documentation

◆ argTypeIsABIEquivalent()

bool argTypeIsABIEquivalent	(	QualType	SrcType,
		QualType	DestType,
		ASTContext &	Context )

static

Definition at line 1136 of file SemaCast.cpp.

References clang::Type::isEnumeralType(), clang::Type::isIntegralType(), and clang::Type::isPointerType().

Referenced by checkCastFunctionType().

◆ CastsAwayConstness()

CastAwayConstnessKind CastsAwayConstness	(	Sema &	Self,
		QualType	SrcType,
		QualType	DestType,
		bool	CheckCVR,
		bool	CheckObjCLifetime,
		QualType *	TheOffendingSrcType = nullptr,
		QualType *	TheOffendingDestType = nullptr,
		Qualifiers *	CastAwayQualifiers = nullptr )

static

Check if the pointer conversion from SrcType to DestType casts away constness as defined in C++ [expr.const.cast].

This is used by the cast checkers. Both arguments must denote pointer (possibly to member) types.

Parameters

CheckCVR	Whether to check for const/volatile/restrict qualifiers.
CheckObjCLifetime	Whether to check Objective-C lifetime qualifiers.

Definition at line 717 of file SemaCast.cpp.

References clang::Qualifiers::compatiblyIncludesObjCLifetime(), clang::Qualifiers::fromCVRMask(), clang::Qualifiers::getCVRQualifiers(), clang::Qualifiers::hasConst(), clang::Type::isAnyPointerType(), clang::Type::isBlockPointerType(), clang::Type::isMemberPointerType(), clang::Type::isObjCObjectType(), clang::Type::isReferenceType(), clang::Qualifiers::removeConst(), clang::Self, and unwrapCastAwayConstnessLevel().

Referenced by DiagnoseCastQual(), and TryReinterpretCast().

◆ checkCastFunctionType()

unsigned int checkCastFunctionType	(	Sema &	Self,
		const ExprResult &	SrcExpr,
		QualType	DestType )

static

Definition at line 1151 of file SemaCast.cpp.

References argTypeIsABIEquivalent(), clang::cast(), clang::Type::castAs(), clang::ActionResult< PtrTy, Compress >::get(), clang::Expr::getExprLoc(), clang::QualType::getNonReferenceType(), clang::Type::getPointeeType(), clang::FunctionType::getReturnType(), clang::Expr::getType(), clang::Type::isBlockPointerType(), clang::Type::isFunctionNoProtoType(), clang::Type::isFunctionPointerType(), clang::Type::isFunctionReferenceType(), clang::Type::isFunctionType(), clang::Type::isMemberFunctionPointerType(), clang::Self, and clang::T.

◆ checkIntToPointerCast()

void checkIntToPointerCast	(	bool	CStyle,
		const SourceRange &	OpRange,
		const Expr *	SrcExpr,
		QualType	DestType,
		Sema &	Self )

static

Definition at line 2229 of file SemaCast.cpp.

References Diag(), clang::SourceRange::getBegin(), clang::Expr::getType(), clang::Type::isBooleanType(), clang::Type::isEnumeralType(), clang::Expr::isIntegerConstantExpr(), clang::Type::isIntegralType(), clang::Type::isVoidPointerType(), and clang::Self.

Referenced by TryReinterpretCast().

◆ diagnoseBadCast()

void diagnoseBadCast	(	Sema &	S,
		unsigned	msg,
		CastType	castType,
		CastOperation::OpRangeType	opRange,
		Expr *	src,
		QualType	destType,
		bool	listInitialization )

static

Diagnose a failed cast.

Definition at line 574 of file SemaCast.cpp.

References clang::SemaBase::Diag(), clang::Type::getAs(), clang::Type::getAsCXXRecordDecl(), clang::Type::getPointeeType(), clang::Stmt::getSourceRange(), clang::Expr::getType(), and tryDiagnoseOverloadedCast().

◆ DiagnoseBadFunctionCast()

void DiagnoseBadFunctionCast	(	Sema &	Self,
		const ExprResult &	SrcExpr,
		QualType	DestType )

static

DiagnoseBadFunctionCast - Warn whenever a function call is cast to a non-matching type.

Such as enum function call to int, int call to pointer; etc. Cast to 'void' is an exception.

Definition at line 2969 of file SemaCast.cpp.

◆ DiagnoseCallingConvCast()

void DiagnoseCallingConvCast	(	Sema &	Self,
		const ExprResult &	SrcExpr,
		QualType	DstType,
		CastOperation::OpRangeType	OpRange )

static

Diagnose casts that change the calling convention of a pointer to a function defined in the current TU.

Definition at line 2140 of file SemaCast.cpp.

References clang::Type::castAs(), clang::FixItHint::CreateInsertion(), clang::ActionResult< PtrTy, Compress >::get(), clang::FunctionType::getCallConv(), clang::Preprocessor::getIdentifierInfo(), clang::Preprocessor::getLastMacroWithSpelling(), clang::FunctionType::getNameForCallConv(), getPointeeType(), clang::IdentifierInfo::getTokenID(), clang::Expr::getType(), clang::Expr::IgnoreParenImpCasts(), clang::Type::isFunctionPointerType(), clang::IdentifierInfo::isKeyword(), and clang::Self.

Referenced by TryReinterpretCast().

◆ DiagnoseCastOfObjCSEL()

void DiagnoseCastOfObjCSEL	(	Sema &	Self,
		const ExprResult &	SrcExpr,
		QualType	DestType )

static

Definition at line 2121 of file SemaCast.cpp.

References clang::ActionResult< PtrTy, Compress >::get(), clang::Type::getAs(), clang::Expr::getExprLoc(), clang::Type::getPointeeType(), clang::Stmt::getSourceRange(), clang::Expr::getType(), clang::QualType::getUnqualifiedType(), clang::isa(), clang::Type::isVoidType(), and clang::Self.

Referenced by TryReinterpretCast().

◆ DiagnoseCastQual()

void DiagnoseCastQual	(	Sema &	Self,
		const ExprResult &	SrcExpr,
		QualType	DestType )

static

DiagnoseCastQual - Warn whenever casts discards a qualifiers, be it either const, volatile or both.

Definition at line 3405 of file SemaCast.cpp.

References CastsAwayConstness(), clang::ActionResult< PtrTy, Compress >::get(), clang::Stmt::getBeginLoc(), clang::Expr::getType(), clang::Qualifiers::hasConst(), clang::Qualifiers::hasVolatile(), clang::Type::isAnyPointerType(), clang::ActionResult< PtrTy, Compress >::isInvalid(), clang::Type::isLValueReferenceType(), and clang::Self.

Referenced by clang::Sema::BuildCStyleCastExpr(), and clang::Sema::BuildCXXFunctionalCastExpr().

◆ DiagnoseReinterpretUpDownCast()

void DiagnoseReinterpretUpDownCast	(	Sema &	Self,
		const Expr *	SrcExpr,
		QualType	DestType,
		CastOperation::OpRangeType	OpRange )

static

Check that a reinterpret_cast<DestType>(SrcExpr) is not used as upcast or downcast between respective pointers or references.

Definition at line 1045 of file SemaCast.cpp.

References clang::CXXBasePaths::begin(), clang::FixItHint::CreateReplacement(), clang::CXXBasePaths::end(), clang::Type::getAsCXXRecordDecl(), clang::ASTRecordLayout::getBaseClassOffset(), clang::CXXRecordDecl::getDefinition(), clang::Type::getPointeeCXXRecordDecl(), clang::Expr::getType(), int, clang::TagDecl::isCompleteDefinition(), clang::CXXRecordDecl::isDerivedFrom(), clang::Decl::isInvalidDecl(), clang::Self, clang::VirtualBase, and clang::CharUnits::Zero().

◆ fixOverloadedReinterpretCastExpr()

bool fixOverloadedReinterpretCastExpr	(	Sema &	Self,
		QualType	DestType,
		ExprResult &	Result )

static

Definition at line 2255 of file SemaCast.cpp.

References clang::Expr::getValueKindForType(), clang::Self, and clang::VK_PRValue.

Referenced by TryReinterpretCast().

◆ getCastAwayConstnessCastKind()

TryCastResult getCastAwayConstnessCastKind	(	CastAwayConstnessKind	CACK,
		unsigned &	DiagID )

static

Definition at line 813 of file SemaCast.cpp.

References TC_Extension, and TC_Failed.

Referenced by TryReinterpretCast().

◆ IsAddressSpaceConversion()

bool IsAddressSpaceConversion	(	QualType	SrcType,
		QualType	DestType )

static

Definition at line 1374 of file SemaCast.cpp.

References clang::QualType::getAddressSpace(), clang::Type::getAs(), and clang::PointerType::getPointeeType().

Referenced by TryReinterpretCast(), and TryStaticCast().

◆ isValidCast()

bool isValidCast ( TryCastResult TCR )

static

Definition at line 45 of file SemaCast.cpp.

References TC_Extension, and TC_Success.

◆ TryAddressSpaceCast()

TryCastResult TryAddressSpaceCast	(	Sema &	Self,
		ExprResult &	SrcExpr,
		QualType	DestType,
		bool	CStyle,
		unsigned &	msg,
		CastKind &	Kind )

static

Definition at line 2635 of file SemaCast.cpp.

References clang::ActionResult< PtrTy, Compress >::get(), clang::Type::getAs(), clang::Expr::getType(), clang::Self, TC_Failed, TC_NotApplicable, and TC_Success.

◆ TryConstCast()

TryCastResult TryConstCast	(	Sema &	Self,
		ExprResult &	SrcExpr,
		QualType	DestType,
		bool	CStyle,
		unsigned &	msg )

static

TryConstCast - See if a const_cast from source to destination is allowed, and perform it if it is.

Definition at line 1964 of file SemaCast.cpp.

References clang::ActionResult< PtrTy, Compress >::get(), clang::Type::getAs(), clang::Expr::getType(), clang::isa(), clang::Type::isFunctionPointerType(), clang::Expr::isLValue(), clang::Type::isMemberFunctionPointerType(), clang::Type::isMemberPointerType(), clang::Type::isObjCObjectPointerType(), clang::Type::isPointerType(), clang::Expr::isPRValue(), clang::Type::isRecordType(), clang::Expr::refersToBitField(), clang::Self, TC_NotApplicable, and TC_Success.

◆ tryDiagnoseOverloadedCast()

bool tryDiagnoseOverloadedCast	(	Sema &	S,
		CastType	CT,
		CastOperation::OpRangeType	range,
		Expr *	src,
		QualType	destType,
		bool	listInitialization )

static

Try to diagnose a failed overloaded cast.

Returns true if diagnostics were emitted.

Definition at line 460 of file SemaCast.cpp.

References clang::OverloadCandidateSet::BestViableFunction(), clang::InitializationKind::CreateCast(), clang::InitializationKind::CreateCStyleCast(), clang::InitializationKind::CreateFunctionalCast(), CT_Addrspace, CT_Const, CT_CStyle, CT_Dynamic, CT_Functional, CT_Reinterpret, CT_Static, clang::OverloadCandidateSet::empty(), clang::InitializationSequence::Failed(), clang::InitializationSequence::FK_ConstructorOverloadFailed, clang::InitializationSequence::FK_ParenthesizedListInitFailed, clang::InitializationSequence::FK_UserConversionOverloadFailed, clang::InitializationSequence::getFailedCandidateSet(), clang::InitializationSequence::getFailedOverloadResult(), clang::InitializationSequence::getFailureKind(), clang::Stmt::getSourceRange(), clang::StringLiteral::getString(), clang::Expr::getType(), clang::InitializedEntity::InitializeTemporary(), clang::Type::isArrayType(), clang::Type::isRecordType(), clang::OverloadCandidateSet::NoteCandidates(), clang::OCD_AllCandidates, clang::OCD_AmbiguousCandidates, clang::OCD_ViableCandidates, clang::OR_Ambiguous, clang::OR_Deleted, clang::OR_No_Viable_Function, clang::OR_Success, and clang::SemaBase::PDiag().

Referenced by diagnoseBadCast().

◆ TryLValueToRValueCast()

TryCastResult TryLValueToRValueCast	(	Sema &	Self,
		Expr *	SrcExpr,
		QualType	DestType,
		bool	CStyle,
		SourceRange	OpRange,
		CastKind &	Kind,
		CXXCastPath &	BasePath,
		unsigned &	msg )

static

Tests whether a conversion according to N2844 is valid.

Definition at line 1600 of file SemaCast.cpp.

References clang::Type::getAs(), clang::Stmt::getBeginLoc(), clang::ReferenceType::getPointeeType(), clang::Expr::getType(), clang::QualType::getUnqualifiedType(), clang::Expr::isGLValue(), clang::Expr::isLValue(), clang::Sema::Ref_Compatible, clang::Sema::Ref_Incompatible, clang::Self, TC_Failed, TC_NotApplicable, and TC_Success.

Referenced by TryStaticCast().

◆ TryReinterpretCast()

TryCastResult TryReinterpretCast	(	Sema &	Self,
		ExprResult &	SrcExpr,
		QualType	DestType,
		bool	CStyle,
		CastOperation::OpRangeType	OpRange,
		unsigned &	msg,
		CastKind &	Kind )

static

Definition at line 2283 of file SemaCast.cpp.

References CastsAwayConstness(), checkIntToPointerCast(), Diag(), DiagnoseCallingConvCast(), DiagnoseCastOfObjCSEL(), clang::ExprError(), fixOverloadedReinterpretCastExpr(), clang::ActionResult< PtrTy, Compress >::get(), clang::QualType::getAddressSpace(), clang::Type::getAs(), getCastAwayConstnessCastKind(), clang::Expr::getObjectKind(), clang::Type::getPointeeType(), clang::QualType::getQualifiers(), clang::Stmt::getSourceRange(), clang::Expr::getType(), IsAddressSpaceConversion(), clang::Qualifiers::isAddressSpaceSupersetOf(), clang::Type::isAnyPointerType(), clang::Type::isBlockPointerType(), clang::Type::isBooleanType(), clang::Type::isExtVectorType(), clang::Type::isFunctionPointerType(), clang::Expr::isGLValue(), clang::Type::isIntegralOrEnumerationType(), clang::Type::isIntegralType(), clang::MemberPointerType::isMemberFunctionPointer(), clang::Type::isMemberPointerType(), clang::QualType::isNull(), clang::Type::isNullPtrType(), clang::Type::isObjCObjectPointerType(), clang::Type::isPointerType(), clang::ActionResult< PtrTy, Compress >::isUsable(), clang::Type::isVectorType(), clang::Type::isVoidPointerType(), clang::OK_BitField, clang::OK_MatrixComponent, clang::OK_ObjCProperty, clang::OK_ObjCSubscript, clang::OK_Ordinary, clang::OK_VectorComponent, clang::Self, TC_Failed, TC_NotApplicable, and TC_Success.

◆ TryStaticCast()

TryCastResult TryStaticCast	(	Sema &	Self,
		ExprResult &	SrcExpr,
		QualType	DestType,
		CheckedConversionKind	CCK,
		CastOperation::OpRangeType	OpRange,
		unsigned &	msg,
		CastKind &	Kind,
		CXXCastPath &	BasePath,
		bool	ListInitialization )

static

TryStaticCast - Check if a static cast can be performed, and do so if possible.

If CStyle, ignore access restrictions on hierarchy casting and casting away constness.

Definition at line 1388 of file SemaCast.cpp.

◆ TryStaticDowncast()

TryCastResult TryStaticDowncast	(	Sema &	Self,
		CanQualType	SrcType,
		CanQualType	DestType,
		bool	CStyle,
		CastOperation::OpRangeType	OpRange,
		QualType	OrigSrcType,
		QualType	OrigDestType,
		unsigned &	msg,
		CastKind &	Kind,
		CXXCastPath &	BasePath )

static

TryStaticDowncast - Common functionality of TryStaticReferenceDowncast and TryStaticPointerDowncast.

Tests whether a static downcast from SrcType to DestType is possible and allowed.

Definition at line 1724 of file SemaCast.cpp.

References clang::Sema::AR_accessible, clang::Sema::AR_delayed, clang::Sema::AR_dependent, clang::Sema::AR_inaccessible, clang::CXXBasePaths::clear(), clang::CXXBasePaths::front(), clang::CanQual< T >::getAs(), clang::QualType::getAsString(), clang::CXXBasePaths::getDetectedVirtual(), clang::CanQual< T >::getUnqualifiedType(), clang::QualType::getUnqualifiedType(), clang::CXXBasePaths::isAmbiguous(), clang::CanQual< T >::isAtLeastAsQualifiedAs(), clang::CXXBasePaths::isRecordingPaths(), clang::Self, clang::CXXBasePaths::setRecordingPaths(), TC_Failed, TC_NotApplicable, TC_Success, and clang::VirtualBase.

Referenced by TryStaticPointerDowncast(), and TryStaticReferenceDowncast().

◆ TryStaticImplicitCast()

TryCastResult TryStaticImplicitCast	(	Sema &	Self,
		ExprResult &	SrcExpr,
		QualType	DestType,
		CheckedConversionKind	CCK,
		CastOperation::OpRangeType	OpRange,
		unsigned &	msg,
		CastKind &	Kind,
		bool	ListInitialization )

static

TryStaticImplicitCast - Tests whether a conversion according to C++ 5.2.9p2 is valid:

An expression e can be explicitly converted to a type T using a static_cast if the declaration "T t(e);" is well-formed [...].

Definition at line 1906 of file SemaCast.cpp.

References clang::InitializationKind::CreateCast(), clang::InitializationKind::CreateCStyleCast(), clang::InitializationKind::CreateFunctionalCast(), clang::CStyleCast, clang::InitializationSequence::Failed(), clang::FunctionalCast, clang::ActionResult< PtrTy, Compress >::get(), clang::InitializedEntity::InitializeTemporary(), clang::InitializationSequence::isConstructorInitialization(), clang::Type::isRecordType(), clang::Type::isReferenceType(), clang::InitializationSequence::Perform(), clang::Self, TC_Failed, TC_NotApplicable, and TC_Success.

Referenced by TryStaticCast().

◆ TryStaticMemberPointerUpcast()

TryCastResult TryStaticMemberPointerUpcast	(	Sema &	Self,
		ExprResult &	SrcExpr,
		QualType	SrcType,
		QualType	DestType,
		bool	CStyle,
		CastOperation::OpRangeType	OpRange,
		unsigned &	msg,
		CastKind &	Kind,
		CXXCastPath &	BasePath )

static

TryStaticMemberPointerUpcast - Tests whether a conversion according to C++ 5.2.9p9 is valid:

An rvalue of type "pointer to member of D of type cv1 T" can be converted to an rvalue of type "pointer to member of B of type cv2 T", where B is a base class of D [...].

Definition at line 1838 of file SemaCast.cpp.

References clang::Sema::Ambiguous, clang::cast(), clang::Sema::DifferentPointee, clang::ActionResult< PtrTy, Compress >::get(), clang::Type::getAs(), clang::CXXMethodDecl::getParent(), clang::Expr::getType(), clang::Sema::Inaccessible, clang::ActionResult< PtrTy, Compress >::isUsable(), clang::Sema::NotDerived, clang::Self, clang::Sema::Success, TC_Failed, TC_NotApplicable, TC_Success, clang::Sema::Upcast, and clang::Sema::Virtual.

Referenced by TryStaticCast().

◆ TryStaticPointerDowncast()

TryCastResult TryStaticPointerDowncast	(	Sema &	Self,
		QualType	SrcType,
		QualType	DestType,
		bool	CStyle,
		CastOperation::OpRangeType	OpRange,
		unsigned &	msg,
		CastKind &	Kind,
		CXXCastPath &	BasePath )

static

Tests whether a conversion according to C++ 5.2.9p8 is valid.

Definition at line 1690 of file SemaCast.cpp.

References clang::Type::getAs(), clang::PointerType::getPointeeType(), clang::Self, TC_NotApplicable, and TryStaticDowncast().

Referenced by TryStaticCast().

◆ TryStaticReferenceDowncast()

TryCastResult TryStaticReferenceDowncast	(	Sema &	Self,
		Expr *	SrcExpr,
		QualType	DestType,
		bool	CStyle,
		CastOperation::OpRangeType	OpRange,
		unsigned &	msg,
		CastKind &	Kind,
		CXXCastPath &	BasePath )

static

Tests whether a conversion according to C++ 5.2.9p5 is valid.

Definition at line 1652 of file SemaCast.cpp.

References clang::Type::getAs(), clang::ReferenceType::getPointeeType(), clang::Expr::getType(), clang::Expr::isLValue(), clang::Type::isRValueReferenceType(), clang::Self, TC_NotApplicable, and TryStaticDowncast().

Referenced by TryStaticCast().

◆ unwrapCastAwayConstnessLevel()

CastAwayConstnessKind unwrapCastAwayConstnessLevel	(	ASTContext &	Context,
		QualType &	T1,
		QualType &	T2 )

static

Unwrap one level of types for CastsAwayConstness.

Like Sema::UnwrapSimilarTypes, this removes one level of indirection from both types, provided that they're both pointer-like or array-like. Unlike the Sema function, doesn't care if the unwrapped pieces are related.

This function may remove additional levels as necessary for correctness: the resulting T1 is unwrapped sufficiently that it is never an array type, so that its qualifiers can be directly compared to those of T2 (which will have the combined set of qualifiers from all indermediate levels of T2), as (effectively) required by [expr.const.cast]p7 replacing T1's qualifiers with those from T2.

Definition at line 639 of file SemaCast.cpp.

References clang::QualType::getCVRQualifiers(), clang::Type::getPointeeType(), clang::Type::isReferenceType(), None, clang::T, and clang::QualType::withCVRQualifiers().

Referenced by CastsAwayConstness().

Enumerations

Functions

Enumeration Type Documentation

◆ CastType

◆ TryCastResult

Function Documentation

◆ argTypeIsABIEquivalent()

◆ CastsAwayConstness()

◆ checkCastFunctionType()

◆ checkIntToPointerCast()

◆ diagnoseBadCast()

◆ DiagnoseBadFunctionCast()

◆ DiagnoseCallingConvCast()

◆ DiagnoseCastOfObjCSEL()

◆ DiagnoseCastQual()

◆ DiagnoseReinterpretUpDownCast()

◆ fixOverloadedReinterpretCastExpr()

◆ getCastAwayConstnessCastKind()

◆ IsAddressSpaceConversion()

◆ isValidCast()

◆ TryAddressSpaceCast()

◆ TryConstCast()

◆ tryDiagnoseOverloadedCast()

◆ TryLValueToRValueCast()

◆ TryReinterpretCast()

◆ TryStaticCast()

◆ TryStaticDowncast()

◆ TryStaticImplicitCast()

◆ TryStaticMemberPointerUpcast()

◆ TryStaticPointerDowncast()

◆ TryStaticReferenceDowncast()

◆ unwrapCastAwayConstnessLevel()