#include "CheckExprLifetime.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/DeclObjC.h"
#include "clang/AST/Expr.h"
#include "clang/AST/ExprCXX.h"
#include "clang/AST/ExprObjC.h"
#include "clang/AST/IgnoreExpr.h"
#include "clang/AST/TypeLoc.h"
#include "clang/Basic/SourceManager.h"
#include "clang/Basic/Specifiers.h"
#include "clang/Basic/TargetInfo.h"
#include "clang/Sema/Designator.h"
#include "clang/Sema/EnterExpressionEvaluationContext.h"
#include "clang/Sema/Initialization.h"
#include "clang/Sema/Lookup.h"
#include "clang/Sema/Ownership.h"
#include "clang/Sema/SemaObjC.h"
#include "llvm/ADT/APInt.h"
#include "llvm/ADT/FoldingSet.h"
#include "llvm/ADT/PointerIntPair.h"
#include "llvm/ADT/STLForwardCompat.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"

Enumerations
enum	StringInitFailureKind { SIF_None , SIF_NarrowStringIntoWideChar , SIF_WideStringIntoChar , SIF_IncompatWideStringIntoWideChar , SIF_UTF8StringIntoPlainChar , SIF_PlainStringIntoUTF8Char , SIF_Other }

enum	InvalidICRKind { IIK_okay , IIK_nonlocal , IIK_nonscalar }
	The non-zero enum values here are indexes into diagnostic alternatives. More...

Functions
static bool	IsWideCharCompatible (QualType T, ASTContext &Context)
	Check whether T is compatible with a wide character type (wchar_t, char16_t or char32_t).

static StringInitFailureKind	IsStringInit (Expr Init, const ArrayType AT, ASTContext &Context)
	Check whether the array of type AT can be initialized by the Init expression by means of string initialization.

static StringInitFailureKind	IsStringInit (Expr *init, QualType declType, ASTContext &Context)

static void	updateStringLiteralType (Expr *E, QualType Ty)
	Update the type of a string literal, including any surrounding parentheses, to match the type of the object which it is initializing.

static void	updateGNUCompoundLiteralRValue (Expr *E)
	Fix a compound literal initializing an array so it's correctly marked as an rvalue.

static bool	initializingConstexprVariable (const InitializedEntity &Entity)

static void	CheckC23ConstexprInitStringLiteral (const StringLiteral *SE, Sema &SemaRef, QualType &TT)

static void	CheckStringInit (Expr Str, QualType &DeclT, const ArrayType AT, Sema &S, bool CheckC23ConstexprInit=false)

void	emitUninitializedExplicitInitFields (Sema &S, const RecordDecl *R)

static bool	hasAnyDesignatedInits (const InitListExpr *IL)

static bool	isIdiomaticBraceElisionEntity (const InitializedEntity &Entity)
	Determine whether Entity is an entity for which it is idiomatic to elide the braces in aggregate initialization.

static void	warnBracedScalarInit (Sema &S, const InitializedEntity &Entity, SourceRange Braces)
	Warn that `Entity` was of scalar type and was initialized by a single-element braced initializer list.

static bool	checkDestructorReference (QualType ElementType, SourceLocation Loc, Sema &SemaRef)
	Check if the type of a class element has an accessible destructor, and marks it referenced.

static bool	canInitializeArrayWithEmbedDataString (ArrayRef< Expr * > ExprList, const InitializedEntity &Entity, ASTContext &Context)

static bool	isInitializedStructuredList (const InitListExpr *StructuredList)

static void	ExpandAnonymousFieldDesignator (Sema &SemaRef, DesignatedInitExpr DIE, unsigned DesigIdx, IndirectFieldDecl IndirectField)
	Expand a field designator that refers to a member of an anonymous struct or union into a series of field designators that refers to the field within the appropriate subobject.

static DesignatedInitExpr *	CloneDesignatedInitExpr (Sema &SemaRef, DesignatedInitExpr *DIE)

static ExprResult	CheckArrayDesignatorExpr (Sema &S, Expr *Index, llvm::APSInt &Value)
	Check that the given Index expression is a valid array designator value.

static bool	maybeRecoverWithZeroInitialization (Sema &S, InitializationSequence &Sequence, const InitializedEntity &Entity)
	Tries to add a zero initializer. Returns true if that worked.

static void	MaybeProduceObjCObject (Sema &S, InitializationSequence &Sequence, const InitializedEntity &Entity)

static void	TryArrayCopy (Sema &S, const InitializationKind &Kind, const InitializedEntity &Entity, Expr *Initializer, QualType DestType, InitializationSequence &Sequence, bool TreatUnavailableAsInvalid)
	Initialize an array from another array.

static void	TryListInitialization (Sema &S, const InitializedEntity &Entity, const InitializationKind &Kind, InitListExpr *InitList, InitializationSequence &Sequence, bool TreatUnavailableAsInvalid)
	Attempt list initialization (C++0x [dcl.init.list])

static bool	TryInitializerListConstruction (Sema &S, InitListExpr *List, QualType DestType, InitializationSequence &Sequence, bool TreatUnavailableAsInvalid)
	When initializing from init list via constructor, handle initialization of an object of type std::initializer_list<T>.

static bool	hasCopyOrMoveCtorParam (ASTContext &Ctx, const ConstructorInfo &Info)
	Determine if the constructor has the signature of a copy or move constructor for the type T of the class in which it was found.

static OverloadingResult	ResolveConstructorOverload (Sema &S, SourceLocation DeclLoc, MultiExprArg Args, OverloadCandidateSet &CandidateSet, QualType DestType, DeclContext::lookup_result Ctors, OverloadCandidateSet::iterator &Best, bool CopyInitializing, bool AllowExplicit, bool OnlyListConstructors, bool IsListInit, bool RequireActualConstructor, bool SecondStepOfCopyInit=false)

static void	TryConstructorInitialization (Sema &S, const InitializedEntity &Entity, const InitializationKind &Kind, MultiExprArg Args, QualType DestType, QualType DestArrayType, InitializationSequence &Sequence, bool IsListInit=false, bool IsInitListCopy=false)
	Attempt initialization by constructor (C++ [dcl.init]), which enumerates the constructors of the initialized entity and performs overload resolution to select the best.

static bool	ResolveOverloadedFunctionForReferenceBinding (Sema &S, Expr *Initializer, QualType &SourceType, QualType &UnqualifiedSourceType, QualType UnqualifiedTargetType, InitializationSequence &Sequence)

static void	TryReferenceInitializationCore (Sema &S, const InitializedEntity &Entity, const InitializationKind &Kind, Expr *Initializer, QualType cv1T1, QualType T1, Qualifiers T1Quals, QualType cv2T2, QualType T2, Qualifiers T2Quals, InitializationSequence &Sequence, bool TopLevelOfInitList)
	Reference initialization without resolving overloaded functions.

static void	TryValueInitialization (Sema &S, const InitializedEntity &Entity, const InitializationKind &Kind, InitializationSequence &Sequence, InitListExpr *InitList)
	Attempt value initialization (C++ [dcl.init]p7).

static void	TryReferenceListInitialization (Sema &S, const InitializedEntity &Entity, const InitializationKind &Kind, InitListExpr *InitList, InitializationSequence &Sequence, bool TreatUnavailableAsInvalid)
	Attempt list initialization of a reference.

static OverloadingResult	TryRefInitWithConversionFunction (Sema &S, const InitializedEntity &Entity, const InitializationKind &Kind, Expr *Initializer, bool AllowRValues, bool IsLValueRef, InitializationSequence &Sequence)
	Try a reference initialization that involves calling a conversion function.

static void	CheckCXX98CompatAccessibleCopy (Sema &S, const InitializedEntity &Entity, Expr *CurInitExpr)
	Check whether elidable copy construction for binding a reference to a temporary would have succeeded if we were building in C++98 mode, for -Wc++98-compat.

static void	TryReferenceInitialization (Sema &S, const InitializedEntity &Entity, const InitializationKind &Kind, Expr *Initializer, InitializationSequence &Sequence, bool TopLevelOfInitList)
	Attempt reference initialization (C++0x [dcl.init.ref])

static bool	isNonReferenceableGLValue (Expr *E)
	Determine whether an expression is a non-referenceable glvalue (one to which a reference can never bind).

static void	TryStringLiteralInitialization (Sema &S, const InitializedEntity &Entity, const InitializationKind &Kind, Expr *Initializer, InitializationSequence &Sequence)
	Attempt character array initialization from a string literal (C++ [dcl.init.string], C99 6.7.8).

static void	TryDefaultInitialization (Sema &S, const InitializedEntity &Entity, const InitializationKind &Kind, InitializationSequence &Sequence)
	Attempt default initialization (C++ [dcl.init]p6).

static void	TryOrBuildParenListInitialization (Sema &S, const InitializedEntity &Entity, const InitializationKind &Kind, ArrayRef< Expr * > Args, InitializationSequence &Sequence, bool VerifyOnly, ExprResult *Result=nullptr)

static void	TryUserDefinedConversion (Sema &S, QualType DestType, const InitializationKind &Kind, Expr *Initializer, InitializationSequence &Sequence, bool TopLevelOfInitList)
	Attempt a user-defined conversion between two types (C++ [dcl.init]), which enumerates all conversion functions and performs overload resolution to select the best.

static bool	isLibstdcxxPointerReturnFalseHack (Sema &S, const InitializedEntity &Entity, const Expr *Init)
	An egregious hack for compatibility with libstdc++-4.2: in <tr1/hashtable>, a function with a pointer return type contains a 'return false;' statement.

static InvalidICRKind	isInvalidICRSource (ASTContext &C, Expr *e, bool isAddressOf, bool &isWeakAccess)
	Determines whether this expression is an acceptable ICR source.

static void	checkIndirectCopyRestoreSource (Sema &S, Expr *src)
	Check whether the given expression is a valid operand for an indirect copy/restore.

static bool	hasCompatibleArrayTypes (ASTContext &Context, const ArrayType Dest, const ArrayType Source)
	Determine whether we have compatible array types for the purposes of GNU by-copy array initialization.

static bool	tryObjCWritebackConversion (Sema &S, InitializationSequence &Sequence, const InitializedEntity &Entity, Expr *Initializer)

static bool	TryOCLSamplerInitialization (Sema &S, InitializationSequence &Sequence, QualType DestType, Expr *Initializer)

static bool	IsZeroInitializer (Expr *Initializer, Sema &S)

static bool	TryOCLZeroOpaqueTypeInitialization (Sema &S, InitializationSequence &Sequence, QualType DestType, Expr *Initializer)

static bool	isExprAnUnaddressableFunction (Sema &S, const Expr *E)
	Tries to get a FunctionDecl out of `E`.

static bool	canPerformArrayCopy (const InitializedEntity &Entity)
	Determine whether we can perform an elementwise array copy for this kind of entity.

static AssignmentAction	getAssignmentAction (const InitializedEntity &Entity, bool Diagnose=false)

static bool	shouldBindAsTemporary (const InitializedEntity &Entity)
	Whether we should bind a created object as a temporary when initializing the given entity.

static bool	shouldDestroyEntity (const InitializedEntity &Entity)
	Whether the given entity, when initialized with an object created for that initialization, requires destruction.

static SourceLocation	getInitializationLoc (const InitializedEntity &Entity, Expr *Initializer)
	Get the location at which initialization diagnostics should appear.

static ExprResult	CopyObject (Sema &S, QualType T, const InitializedEntity &Entity, ExprResult CurInit, bool IsExtraneousCopy)
	Make a (potentially elidable) temporary copy of the object provided by the given initializer by calling the appropriate copy constructor.

static bool	isExplicitTemporary (const InitializedEntity &Entity, const InitializationKind &Kind, unsigned NumArgs)
	Returns true if the parameters describe a constructor initialization of an explicit temporary object, e.g.

static ExprResult	PerformConstructorInitialization (Sema &S, const InitializedEntity &Entity, const InitializationKind &Kind, MultiExprArg Args, const InitializationSequence::Step &Step, bool &ConstructorInitRequiresZeroInit, bool IsListInitialization, bool IsStdInitListInitialization, SourceLocation LBraceLoc, SourceLocation RBraceLoc)

static void	DiagnoseNarrowingInInitList (Sema &S, const ImplicitConversionSequence &ICS, QualType PreNarrowingType, QualType EntityType, const Expr *PostInit)

static void	CheckC23ConstexprInitConversion (Sema &S, QualType FromType, QualType ToType, Expr *Init)

static void	CheckMoveOnConstruction (Sema &S, const Expr *InitExpr, bool IsReturnStmt)
	Provide warnings when std::move is used on construction.

static void	CheckForNullPointerDereference (Sema &S, const Expr *E)

static bool	DiagnoseUninitializedReference (Sema &S, SourceLocation Loc, QualType T)
	Somewhere within T there is an uninitialized reference subobject.

static void	emitBadConversionNotes (Sema &S, const InitializedEntity &entity, Expr *op)
	Emit notes associated with an initialization that failed due to a "simple" conversion failure.

static void	diagnoseListInit (Sema &S, const InitializedEntity &Entity, InitListExpr *InitList)

static bool	isOrIsDerivedFromSpecializationOf (CXXRecordDecl RD, ClassTemplateDecl CTD)
	Determine whether RD is, or is derived from, a specialization of CTD.

Enumeration Type Documentation

◆ InvalidICRKind

enum InvalidICRKind

The non-zero enum values here are indexes into diagnostic alternatives.

Enumerator
IIK_okay
IIK_nonlocal
IIK_nonscalar

Definition at line 6157 of file SemaInit.cpp.

◆ StringInitFailureKind

enum StringInitFailureKind

Enumerator
SIF_None
SIF_NarrowStringIntoWideChar
SIF_WideStringIntoChar
SIF_IncompatWideStringIntoWideChar
SIF_UTF8StringIntoPlainChar
SIF_PlainStringIntoUTF8Char
SIF_Other

Definition at line 57 of file SemaInit.cpp.

Function Documentation

◆ canInitializeArrayWithEmbedDataString()

static bool canInitializeArrayWithEmbedDataString	(	ArrayRef< Expr * >	ExprList,
		const InitializedEntity &	Entity,
		ASTContext &	Context
	)

static

Definition at line 2027 of file SemaInit.cpp.

References clang::Type::getAsArrayTypeUnsafe(), clang::EmbedExpr::getDataStringLiteral(), clang::InitializedEntity::getType(), clang::Type::isArrayType(), IsStringInit(), Parent, and SIF_None.

◆ canPerformArrayCopy()

static bool canPerformArrayCopy ( const InitializedEntity & Entity )

static

Determine whether we can perform an elementwise array copy for this kind of entity.

Definition at line 6390 of file SemaInit.cpp.

References canPerformArrayCopy(), E, clang::InitializedEntity::EK_ArrayElement, clang::InitializedEntity::EK_LambdaCapture, clang::InitializedEntity::EK_Member, clang::InitializedEntity::EK_Variable, clang::InitializedEntity::getDecl(), clang::InitializedEntity::getKind(), clang::InitializedEntity::getParent(), and clang::InitializedEntity::isImplicitMemberInitializer().

Referenced by canPerformArrayCopy(), and clang::InitializationSequence::InitializeFrom().

◆ CheckArrayDesignatorExpr()

static ExprResult CheckArrayDesignatorExpr	(	Sema &	S,
		Expr *	Index,
		llvm::APSInt &	Value
	)

static

Check that the given Index expression is a valid array designator value.

This is essentially just a wrapper around VerifyIntegerConstantExpression that also checks for negative values and produces a reasonable diagnostic if there is a failure. Returns the index expression, possibly with an implicit cast added, on success. If everything went okay, Value will receive the value of the constant expression.

Definition at line 3486 of file SemaInit.cpp.

References clang::Sema::AllowFold, clang::SemaBase::Diag(), Loc, clang::Result, toString(), and clang::Sema::VerifyIntegerConstantExpression().

Referenced by clang::Sema::ActOnDesignatedInitializer().

◆ CheckC23ConstexprInitConversion()

static void CheckC23ConstexprInitConversion	(	Sema &	S,
		QualType	FromType,
		QualType	ToType,
		Expr *	Init
	)

static

Definition at line 9689 of file SemaInit.cpp.

References clang::Sema::Context, clang::SemaBase::Diag(), clang::Sema::getLangOpts(), clang::StandardConversionSequence::getNarrowingKind(), clang::Init, clang::ImplicitConversionSequence::isStandard(), clang::NK_Constant_Narrowing, clang::NK_Dependent_Narrowing, clang::NK_Not_Narrowing, clang::NK_Type_Narrowing, clang::NK_Variable_Narrowing, clang::ImplicitConversionSequence::Standard, and clang::Sema::TryImplicitConversion().

Referenced by clang::InitializationSequence::Perform().

◆ CheckC23ConstexprInitStringLiteral()

static void CheckC23ConstexprInitStringLiteral	(	const StringLiteral *	SE,
		Sema &	SemaRef,
		QualType &	TT
	)

static

Definition at line 9730 of file SemaInit.cpp.

References clang::C, clang::Sema::Context, clang::SemaBase::Diag(), clang::ASTContext::getAsArrayType(), clang::ASTContext::getCharWidth(), clang::StringLiteral::getCodeUnitS(), clang::ArrayType::getElementType(), clang::Sema::getLangOpts(), clang::StringLiteral::getLength(), clang::Sema::getLocationOfStringLiteralByte(), clang::ASTContext::getTypeSize(), isUnsigned(), and clang::Type::isUnsignedIntegerType().

Referenced by CheckStringInit().

◆ CheckCXX98CompatAccessibleCopy()

static void CheckCXX98CompatAccessibleCopy	(	Sema &	S,
		const InitializedEntity &	Entity,
		Expr *	CurInitExpr
	)

static

Check whether elidable copy construction for binding a reference to a temporary would have succeeded if we were building in C++98 mode, for -Wc++98-compat.

Definition at line 7190 of file SemaInit.cpp.

References clang::Sema::CheckConstructorAccess(), clang::OverloadCandidateSet::CSK_Normal, Diag(), clang::SemaBase::Diag(), clang::Sema::Diags, clang::Type::getAs(), getInitializationLoc(), clang::InitializedEntity::getKind(), clang::Sema::getLangOpts(), clang::Stmt::getSourceRange(), clang::Expr::getType(), int, clang::DiagnosticsEngine::isIgnored(), Loc, clang::Sema::LookupConstructors(), clang::OverloadCandidateSet::NoteCandidates(), clang::Sema::NoteDeletedFunction(), clang::OCD_AllCandidates, clang::OCD_AmbiguousCandidates, clang::OR_Ambiguous, clang::OR_Deleted, clang::OR_No_Viable_Function, clang::OR_Success, clang::SemaBase::PDiag(), and ResolveConstructorOverload().

Referenced by TryReferenceInitializationCore().

◆ checkDestructorReference()

static bool checkDestructorReference	(	QualType	ElementType,
		SourceLocation	Loc,
		Sema &	SemaRef
	)

static

Check if the type of a class element has an accessible destructor, and marks it referenced.

Returns true if we shouldn't form a reference to the destructor.

Aggregate initialization requires a class element's destructor be accessible per 11.6.1 [dcl.init.aggr]:

The destructor for each element of class type is potentially invoked (15.4 [class.dtor]) from the context where the aggregate initialization occurs.

Definition at line 2009 of file SemaInit.cpp.

References clang::Sema::CheckDestructorAccess(), clang::Destructor, clang::Sema::DiagnoseUseOfDecl(), clang::Type::getAsCXXRecordDecl(), Loc, clang::Sema::LookupDestructor(), clang::Sema::MarkFunctionReferenced(), and clang::SemaBase::PDiag().

Referenced by PerformConstructorInitialization().

◆ CheckForNullPointerDereference()

static void CheckForNullPointerDereference	(	Sema &	S,
		const Expr *	E
	)

static

Definition at line 7568 of file SemaInit.cpp.

References clang::Sema::Context, clang::Sema::DiagRuntimeBehavior(), E, clang::Expr::IgnoreParenCasts(), clang::Expr::NPC_ValueDependentIsNotNull, and clang::SemaBase::PDiag().

◆ checkIndirectCopyRestoreSource()

static void checkIndirectCopyRestoreSource	(	Sema &	S,
		Expr *	src
	)

static

Check whether the given expression is a valid operand for an indirect copy/restore.

Definition at line 6227 of file SemaInit.cpp.

References clang::Sema::Cleanup, clang::Sema::Context, clang::SemaBase::Diag(), clang::Expr::getExprLoc(), clang::Sema::getLangOpts(), clang::Stmt::getSourceRange(), IIK_okay, isInvalidICRSource(), clang::Expr::isPRValue(), and clang::CleanupInfo::setExprNeedsCleanups().

Referenced by clang::InitializationSequence::Perform().

◆ CheckMoveOnConstruction()

static void CheckMoveOnConstruction	(	Sema &	S,
		const Expr *	InitExpr,
		bool	IsReturnStmt
	)

static

Provide warnings when std::move is used on construction.

Definition at line 7471 of file SemaInit.cpp.

References clang::Sema::Context, clang::FixItHint::CreateRemoval(), clang::SemaBase::Diag(), clang::CallExpr::getArg(), clang::CXXConstructExpr::getArg(), clang::CharSourceRange::getBegin(), clang::CallExpr::getBeginLoc(), clang::Stmt::getBeginLoc(), clang::CallExpr::getCallee(), clang::CXXConstructExpr::getConstructor(), clang::DeclRefExpr::getDecl(), clang::SourceManager::getImmediateExpansionRange(), clang::SourceLocation::getLocWithOffset(), clang::CXXConstructExpr::getNumArgs(), clang::CallExpr::getRParenLoc(), clang::Sema::getSourceManager(), clang::ValueDecl::getType(), clang::Expr::getType(), clang::Decl::hasAttr(), clang::VarDecl::hasLocalStorage(), clang::ASTContext::hasSameUnqualifiedType(), clang::Expr::IgnoreImpCasts(), clang::Expr::IgnoreImplicit(), clang::Expr::IgnoreParenImpCasts(), clang::Expr::IgnoreParens(), clang::Sema::inTemplateInstantiation(), clang::SourceManager::isAtStartOfImmediateMacroExpansion(), clang::CallExpr::isCallToStdMove(), clang::CXXConstructorDecl::isCopyOrMoveConstructor(), clang::SourceLocation::isMacroID(), clang::Expr::isPRValue(), clang::Type::isRecordType(), and clang::DeclRefExpr::refersToEnclosingVariableOrCapture().

Referenced by clang::InitializationSequence::Perform().

◆ CheckStringInit()

static void CheckStringInit	(	Expr *	Str,
		QualType &	DeclT,
		const ArrayType *	AT,
		Sema &	S,
		bool	CheckC23ConstexprInit = `false`
	)

static

Definition at line 210 of file SemaInit.cpp.

References CheckC23ConstexprInitStringLiteral(), clang::Sema::Context, clang::SemaBase::Diag(), clang::Type::getAsArrayTypeUnsafe(), clang::Stmt::getBeginLoc(), clang::ASTContext::getConstantArrayType(), clang::Sema::getLangOpts(), clang::Stmt::getSourceRange(), clang::Expr::getType(), clang::ConstantArrayType::getZExtSize(), clang::Expr::IgnoreParens(), clang::Normal, and updateStringLiteralType().

Referenced by clang::InitializationSequence::Perform().

◆ CloneDesignatedInitExpr()

static DesignatedInitExpr * CloneDesignatedInitExpr	(	Sema &	SemaRef,
		DesignatedInitExpr *	DIE
	)

static

Definition at line 2636 of file SemaInit.cpp.

References clang::Sema::Context, clang::DesignatedInitExpr::Create(), clang::DesignatedInitExpr::designators(), clang::DesignatedInitExpr::getEqualOrColonLoc(), clang::DesignatedInitExpr::getInit(), clang::DesignatedInitExpr::getNumSubExprs(), clang::DesignatedInitExpr::getSubExpr(), and clang::DesignatedInitExpr::usesGNUSyntax().

◆ CopyObject()

static ExprResult CopyObject	(	Sema &	S,
		QualType	T,
		const InitializedEntity &	Entity,
		ExprResult	CurInit,
		bool	IsExtraneousCopy
	)

static

Make a (potentially elidable) temporary copy of the object provided by the given initializer by calling the appropriate copy constructor.

Parameters

S	The Sema object used for type-checking.
T	The type of the temporary object, which must either be the type of the initializer expression or a superclass thereof.
Entity	The entity being initialized.
CurInit	The initializer expression.
IsExtraneousCopy	Whether this is an "extraneous" copy that is permitted in C++03 (but not C++0x) when binding a reference to an rvalue.

Returns: An expression that copies the initializer expression into a temporary object, or an error expression if a copy could not be created.

Definition at line 7039 of file SemaInit.cpp.

References clang::Sema::BuildCXXConstructExpr(), clang::Sema::BuildCXXDefaultArgExpr(), clang::Sema::CheckConstructorAccess(), clang::Class, clang::Complete, clang::Sema::CompleteConstructorCall(), clang::Sema::Context, clang::OverloadCandidateSet::CSK_Normal, clang::SemaBase::Diag(), clang::ExprError(), clang::ActionResult< PtrTy, Compress >::get(), clang::ActionResult< PtrTy, Compress >::getAs(), clang::Type::getAs(), getInitializationLoc(), clang::InitializedEntity::getKind(), clang::Stmt::getSourceRange(), clang::ValueDecl::getType(), clang::Expr::getType(), clang::ASTContext::hasSameUnqualifiedType(), int, clang::ActionResult< PtrTy, Compress >::isInvalid(), clang::Sema::isSFINAEContext(), clang::Expr::isTemporaryObject(), Loc, clang::Sema::LookupConstructors(), clang::Sema::MaybeBindToTemporary(), clang::OverloadCandidateSet::NoteCandidates(), clang::Sema::NoteDeletedFunction(), clang::OCD_AllCandidates, clang::OCD_AmbiguousCandidates, clang::OR_Ambiguous, clang::OR_Deleted, clang::OR_No_Viable_Function, clang::OR_Success, clang::SemaBase::PDiag(), clang::Sema::RequireCompleteType(), ResolveConstructorOverload(), shouldBindAsTemporary(), clang::OverloadCandidateSet::size(), and clang::T.

Referenced by clang::InitializationSequence::Perform().

◆ diagnoseListInit()

static void diagnoseListInit	(	Sema &	S,
		const InitializedEntity &	Entity,
		InitListExpr *	InitList
	)

static

◆ DiagnoseNarrowingInInitList()

static void DiagnoseNarrowingInInitList	(	Sema &	S,
		const ImplicitConversionSequence &	ICS,
		QualType	PreNarrowingType,
		QualType	EntityType,
		const Expr *	PostInit
	)

static

Definition at line 9585 of file SemaInit.cpp.

Referenced by clang::InitializationSequence::Perform().

◆ DiagnoseUninitializedReference()

static bool DiagnoseUninitializedReference	(	Sema &	S,
		SourceLocation	Loc,
		QualType	T
	)

static

Somewhere within T there is an uninitialized reference subobject.

Dig it out and diagnose it.

Definition at line 8619 of file SemaInit.cpp.

References clang::CXXRecordDecl::bases(), clang::SemaBase::Diag(), DiagnoseUninitializedReference(), clang::RecordDecl::fields(), clang::Type::getAsCXXRecordDecl(), clang::Type::getBaseElementTypeUnsafe(), clang::CXXRecordDecl::hasUninitializedReferenceMember(), clang::Type::isReferenceType(), Loc, and clang::T.

Referenced by clang::InitializationSequence::Diagnose(), and DiagnoseUninitializedReference().

◆ emitBadConversionNotes()

static void emitBadConversionNotes	(	Sema &	S,
		const InitializedEntity &	entity,
		Expr *	op
	)

static

Emit notes associated with an initialization that failed due to a "simple" conversion failure.

Definition at line 8658 of file SemaInit.cpp.

References clang::Qualifiers::compatiblyIncludes(), clang::SemaBase::Diag(), clang::InitializedEntity::EK_Result, clang::SemaObjC::EmitRelatedResultTypeNote(), clang::SemaObjC::EmitRelatedResultTypeNoteForReturn(), clang::Sema::getASTContext(), clang::QualType::getCanonicalType(), clang::InitializedEntity::getKind(), clang::QualType::getNonReferenceType(), clang::Type::getPointeeCXXRecordDecl(), clang::Type::getPointeeType(), clang::QualType::getQualifiers(), clang::ASTContext::getTagDeclType(), clang::Expr::getType(), clang::InitializedEntity::getType(), clang::Type::isObjCObjectPointerType(), and clang::Sema::ObjC().

Referenced by clang::InitializationSequence::Diagnose().

◆ emitUninitializedExplicitInitFields()

void emitUninitializedExplicitInitFields	(	Sema &	S,
		const RecordDecl *	R
	)

Definition at line 267 of file SemaInit.cpp.

References clang::SemaBase::Diag(), and clang::RecordDecl::fields().

Referenced by clang::InitializationSequence::InitializeFrom(), and TryConstructorInitialization().

◆ ExpandAnonymousFieldDesignator()

static void ExpandAnonymousFieldDesignator	(	Sema &	SemaRef,
		DesignatedInitExpr *	DIE,
		unsigned	DesigIdx,
		IndirectFieldDecl *	IndirectField
	)

static

Expand a field designator that refers to a member of an anonymous struct or union into a series of field designators that refers to the field within the appropriate subobject.

Definition at line 2608 of file SemaInit.cpp.

References clang::IndirectFieldDecl::chain_begin(), clang::IndirectFieldDecl::chain_end(), clang::Sema::Context, clang::Designator::CreateFieldDesignator(), clang::DesignatedInitExpr::ExpandDesignator(), clang::DesignatedInitExpr::getDesignator(), clang::DesignatedInitExpr::Designator::getDotLoc(), and clang::DesignatedInitExpr::Designator::getFieldLoc().

◆ getAssignmentAction()

static AssignmentAction getAssignmentAction	(	const InitializedEntity &	Entity,
		bool	Diagnose = `false`
	)

static

Definition at line 6857 of file SemaInit.cpp.

Referenced by clang::InitializationSequence::Perform().

◆ getInitializationLoc()

static SourceLocation getInitializationLoc	(	const InitializedEntity &	Entity,
		Expr *	Initializer
	)

static

Get the location at which initialization diagnostics should appear.

Definition at line 6981 of file SemaInit.cpp.

Referenced by CheckCXX98CompatAccessibleCopy(), and CopyObject().

◆ hasAnyDesignatedInits()

static bool hasAnyDesignatedInits ( const InitListExpr * IL )

static

Definition at line 1034 of file SemaInit.cpp.

References clang::Init.

◆ hasCompatibleArrayTypes()

static bool hasCompatibleArrayTypes	(	ASTContext &	Context,
		const ArrayType *	Dest,
		const ArrayType *	Source
	)

static

Determine whether we have compatible array types for the purposes of GNU by-copy array initialization.

Definition at line 6245 of file SemaInit.cpp.

References clang::ArrayType::getElementType(), clang::ASTContext::hasSameType(), clang::Type::isConstantArrayType(), and clang::Type::isIncompleteArrayType().

Referenced by clang::InitializationSequence::InitializeFrom().

◆ hasCopyOrMoveCtorParam()

static bool hasCopyOrMoveCtorParam	(	ASTContext &	Ctx,
		const ConstructorInfo &	Info
	)

static

Determine if the constructor has the signature of a copy or move constructor for the type T of the class in which it was found.

That is, determine if its first parameter is of type T or reference to (possibly cv-qualified) T.

Definition at line 4279 of file SemaInit.cpp.

References clang::ConstructorInfo::Constructor, clang::ConstructorInfo::FoundDecl, clang::Decl::getDeclContext(), clang::QualType::getNonReferenceType(), clang::FunctionDecl::getNumParams(), clang::FunctionDecl::getParamDecl(), clang::ASTContext::getRecordType(), clang::ValueDecl::getType(), and clang::ASTContext::hasSameUnqualifiedType().

Referenced by PerformConstructorInitialization(), and ResolveConstructorOverload().

◆ initializingConstexprVariable()

static bool initializingConstexprVariable ( const InitializedEntity & Entity )

static

Definition at line 192 of file SemaInit.cpp.

References D, clang::InitializedEntity::getDecl(), and Parent.

Referenced by clang::InitializationSequence::Perform().

◆ isExplicitTemporary()

static bool isExplicitTemporary	(	const InitializedEntity &	Entity,
		const InitializationKind &	Kind,
		unsigned	NumArgs
	)

static

Returns true if the parameters describe a constructor initialization of an explicit temporary object, e.g.

"Point(x, y)".

Definition at line 7266 of file SemaInit.cpp.

References clang::InitializedEntity::EK_CompoundLiteralInit, clang::InitializedEntity::EK_RelatedResult, clang::InitializedEntity::EK_Temporary, clang::InitializedEntity::getKind(), clang::InitializationKind::IK_Direct, clang::InitializationKind::IK_DirectList, and clang::InitializationKind::IK_Value.

Referenced by PerformConstructorInitialization().

◆ isExprAnUnaddressableFunction()

static bool isExprAnUnaddressableFunction	(	Sema &	S,
		const Expr *	E
	)

static

Tries to get a FunctionDecl out of E.

If it succeeds and we can take the address of that function, this returns true. Otherwise, it returns false.

Definition at line 6379 of file SemaInit.cpp.

References clang::Sema::checkAddressOfFunctionIsAvailable(), and E.

Referenced by clang::InitializationSequence::InitializeFrom().

◆ isIdiomaticBraceElisionEntity()

static bool isIdiomaticBraceElisionEntity ( const InitializedEntity & Entity )

static

Determine whether Entity is an entity for which it is idiomatic to elide the braces in aggregate initialization.

Definition at line 1108 of file SemaInit.cpp.

References clang::Type::castAs(), clang::InitializedEntity::EK_Base, clang::InitializedEntity::EK_Member, clang::RecordDecl::field_empty(), clang::InitializedEntity::getKind(), clang::CXXRecordDecl::getNumBases(), clang::InitializedEntity::getParent(), and clang::InitializedEntity::getType().

◆ isInitializedStructuredList()

static bool isInitializedStructuredList ( const InitListExpr * StructuredList )

static

Definition at line 2263 of file SemaInit.cpp.

References clang::InitListExpr::getNumInits().

◆ isInvalidICRSource()

static InvalidICRKind isInvalidICRSource	(	ASTContext &	C,
		Expr *	e,
		bool	isAddressOf,
		bool &	isWeakAccess
	)

static

Determines whether this expression is an acceptable ICR source.

Definition at line 6160 of file SemaInit.cpp.

References clang::C, clang::QualType::getObjCLifetime(), clang::Expr::getType(), clang::Expr::IgnoreParens(), IIK_nonlocal, IIK_nonscalar, IIK_okay, isInvalidICRSource(), clang::Expr::isNullPointerConstant(), clang::Expr::NPC_ValueDependentIsNull, and clang::Qualifiers::OCL_Weak.

Referenced by checkIndirectCopyRestoreSource(), and isInvalidICRSource().

◆ isLibstdcxxPointerReturnFalseHack()

static bool isLibstdcxxPointerReturnFalseHack	(	Sema &	S,
		const InitializedEntity &	Entity,
		const Expr *	Init
	)

static

An egregious hack for compatibility with libstdc++-4.2: in <tr1/hashtable>, a function with a pointer return type contains a 'return false;' statement.

In C++11, 'false' is not a null pointer, so this breaks the build of any code using that header.

Work around this by treating 'return false;' as zero-initializing the result if it's used in a pointer-returning function in a system header.

Definition at line 6145 of file SemaInit.cpp.

References clang::InitializedEntity::EK_Result, clang::InitializedEntity::getKind(), clang::Sema::getLangOpts(), clang::Sema::getSourceManager(), clang::InitializedEntity::getType(), clang::Init, clang::SourceManager::isInSystemHeader(), and clang::Type::isPointerType().

Referenced by clang::InitializationSequence::InitializeFrom().

◆ isNonReferenceableGLValue()

static bool isNonReferenceableGLValue ( Expr * E )

static

Determine whether an expression is a non-referenceable glvalue (one to which a reference can never bind).

Attempting to bind a reference to such a glvalue will always create a temporary.

Definition at line 5234 of file SemaInit.cpp.

References E, clang::Expr::refersToBitField(), clang::Expr::refersToMatrixElement(), and clang::Expr::refersToVectorElement().

Referenced by TryReferenceInitializationCore().

◆ isOrIsDerivedFromSpecializationOf()

static bool isOrIsDerivedFromSpecializationOf	(	CXXRecordDecl *	RD,
		ClassTemplateDecl *	CTD
	)

static

Determine whether RD is, or is derived from, a specialization of CTD.

Definition at line 9832 of file SemaInit.cpp.

References clang::declaresSameEntity(), and clang::CXXRecordDecl::forallBases().

Referenced by clang::Sema::DeduceTemplateSpecializationFromInitializer().

◆ IsStringInit() [1/2]

static StringInitFailureKind IsStringInit	(	Expr *	Init,
		const ArrayType *	AT,
		ASTContext &	Context
	)

static

Check whether the array of type AT can be initialized by the Init expression by means of string initialization.

Returns SIF_None if so, otherwise returns a StringInitFailureKind that describes why the initialization would not work.

Definition at line 71 of file SemaInit.cpp.

References clang::ASTContext::Char16Ty, clang::ASTContext::Char32Ty, clang::QualType::getCanonicalType(), clang::ASTContext::getCanonicalType(), clang::ArrayType::getElementType(), clang::StringLiteral::getKind(), clang::BuiltinType::getKind(), clang::ASTContext::getLangOpts(), clang::CanQual< T >::getUnqualifiedType(), clang::ASTContext::getWideCharType(), clang::Init, clang::Type::isChar8Type(), clang::Type::isCharType(), IsWideCharCompatible(), SIF_IncompatWideStringIntoWideChar, SIF_NarrowStringIntoWideChar, SIF_None, SIF_Other, SIF_PlainStringIntoUTF8Char, SIF_UTF8StringIntoPlainChar, SIF_WideStringIntoChar, clang::T, and clang::ASTContext::typesAreCompatible().

Referenced by canInitializeArrayWithEmbedDataString(), clang::InitializationSequence::InitializeFrom(), IsStringInit(), and TryListInitialization().

◆ IsStringInit() [2/2]

static StringInitFailureKind IsStringInit	(	Expr *	init,
		QualType	declType,
		ASTContext &	Context
	)

static

Definition at line 157 of file SemaInit.cpp.

References clang::ast_matchers::arrayType, clang::ASTContext::getAsArrayType(), IsStringInit(), and SIF_Other.

◆ IsWideCharCompatible()

static bool IsWideCharCompatible	(	QualType	T,
		ASTContext &	Context
	)

static

Check whether T is compatible with a wide character type (wchar_t, char16_t or char32_t).

Definition at line 47 of file SemaInit.cpp.

References clang::ASTContext::Char16Ty, clang::ASTContext::Char32Ty, clang::ASTContext::getLangOpts(), clang::ASTContext::getWideCharType(), clang::T, and clang::ASTContext::typesAreCompatible().

Referenced by clang::InitializationSequence::InitializeFrom(), and IsStringInit().

◆ IsZeroInitializer()

static bool IsZeroInitializer	(	Expr *	Initializer,
		Sema &	S
	)

static

Definition at line 6321 of file SemaInit.cpp.

References clang::Sema::getASTContext(), and clang::Initializer.

Referenced by TryOCLZeroOpaqueTypeInitialization().

◆ MaybeProduceObjCObject()

static void MaybeProduceObjCObject	(	Sema &	S,
		InitializationSequence &	Sequence,
		const InitializedEntity &	Entity
	)

static

When initializing a parameter, produce the value if it's marked attribute((ns_consumed)).

When initializing a return value, if the return type is a retainable type, then returns need to immediately retain the object. If an autorelease is required, it will be done at the last instant.

Definition at line 4177 of file SemaInit.cpp.

References clang::InitializationSequence::AddProduceObjCObjectStep(), clang::InitializedEntity::EK_Result, clang::InitializedEntity::EK_StmtExprResult, clang::InitializedEntity::getKind(), clang::Sema::getLangOpts(), clang::InitializedEntity::getType(), clang::Type::isObjCRetainableType(), clang::InitializedEntity::isParameterConsumed(), and clang::InitializedEntity::isParameterKind().

Referenced by clang::InitializationSequence::InitializeFrom().

◆ maybeRecoverWithZeroInitialization()

static bool maybeRecoverWithZeroInitialization	(	Sema &	S,
		InitializationSequence &	Sequence,
		const InitializedEntity &	Entity
	)

static

Tries to add a zero initializer. Returns true if that worked.

Definition at line 4157 of file SemaInit.cpp.

References clang::InitializationSequence::AddZeroInitializationStep(), clang::InitializedEntity::EK_Variable, clang::QualType::getCanonicalType(), clang::InitializedEntity::getDecl(), clang::Decl::getEndLoc(), clang::Sema::getFixItZeroInitializerForType(), clang::VarDecl::getInit(), clang::InitializedEntity::getKind(), clang::Sema::getLocForEndOfToken(), clang::ValueDecl::getType(), clang::InitializedEntity::getType(), clang::Init, clang::SourceLocation::isMacroID(), Loc, and clang::InitializationSequence::SetZeroInitializationFixit().

Referenced by TryConstructorInitialization(), and TryDefaultInitialization().

◆ PerformConstructorInitialization()

static ExprResult PerformConstructorInitialization	(	Sema &	S,
		const InitializedEntity &	Entity,
		const InitializationKind &	Kind,
		MultiExprArg	Args,
		const InitializationSequence::Step &	Step,
		bool &	ConstructorInitRequiresZeroInit,
		bool	IsListInitialization,
		bool	IsStdInitListInitialization,
		SourceLocation	LBraceLoc,
		SourceLocation	RBraceLoc
	)

static

Definition at line 7291 of file SemaInit.cpp.

Referenced by clang::InitializationSequence::Perform().

◆ ResolveConstructorOverload()

static OverloadingResult ResolveConstructorOverload	(	Sema &	S,
		SourceLocation	DeclLoc,
		MultiExprArg	Args,
		OverloadCandidateSet &	CandidateSet,
		QualType	DestType,
		DeclContext::lookup_result	Ctors,
		OverloadCandidateSet::iterator &	Best,
		bool	CopyInitializing,
		bool	AllowExplicit,
		bool	OnlyListConstructors,
		bool	IsListInit,
		bool	RequireActualConstructor,
		bool	SecondStepOfCopyInit = `false`
	)

static

Definition at line 4292 of file SemaInit.cpp.

References clang::Sema::AddConversionCandidate(), clang::Sema::AddOverloadCandidate(), clang::Sema::AddTemplateConversionCandidate(), clang::Sema::AddTemplateOverloadCandidate(), clang::OverloadCandidateSet::BestViableFunction(), clang::OverloadCandidateSet::clear(), clang::Sema::Context, clang::OverloadCandidateSet::CSK_InitByConstructor, D, E, clang::Qualifiers::getAddressSpace(), clang::getConstructorInfo(), clang::Decl::getDeclContext(), clang::Sema::getLangOpts(), clang::QualType::getQualifiers(), clang::FunctionTemplateDecl::getTemplatedDecl(), hasCopyOrMoveCtorParam(), clang::Initializer, clang::Sema::isCompleteType(), clang::Sema::isInitListConstructor(), and clang::OverloadCandidateSet::setDestAS().

Referenced by CheckCXX98CompatAccessibleCopy(), CopyObject(), and TryConstructorInitialization().

◆ ResolveOverloadedFunctionForReferenceBinding()

static bool ResolveOverloadedFunctionForReferenceBinding	(	Sema &	S,
		Expr *	Initializer,
		QualType &	SourceType,
		QualType &	UnqualifiedSourceType,
		QualType	UnqualifiedTargetType,
		InitializationSequence &	Sequence
	)

static

Definition at line 4630 of file SemaInit.cpp.

References clang::InitializationSequence::AddAddressOverloadResolutionStep(), clang::Sema::Context, clang::InitializationSequence::FK_AddressOfOverloadFailed, clang::Found, clang::ASTContext::getCanonicalType(), clang::QualType::getUnqualifiedType(), clang::Initializer, clang::Type::isRecordType(), clang::ASTContext::OverloadTy, clang::Sema::ResolveAddressOfOverloadedFunction(), and clang::InitializationSequence::SetFailed().

Referenced by TryReferenceInitialization(), and TryReferenceListInitialization().

◆ shouldBindAsTemporary()

static bool shouldBindAsTemporary ( const InitializedEntity & Entity )

static

Whether we should bind a created object as a temporary when initializing the given entity.

Definition at line 6914 of file SemaInit.cpp.

Referenced by CopyObject(), clang::InitializationSequence::Perform(), and PerformConstructorInitialization().

◆ shouldDestroyEntity()

static bool shouldDestroyEntity ( const InitializedEntity & Entity )

static

Whether the given entity, when initialized with an object created for that initialization, requires destruction.

Definition at line 6948 of file SemaInit.cpp.

Referenced by clang::InitializationSequence::Perform().

◆ TryArrayCopy()

static void TryArrayCopy	(	Sema &	S,
		const InitializationKind &	Kind,
		const InitializedEntity &	Entity,
		Expr *	Initializer,
		QualType	DestType,
		InitializationSequence &	Sequence,
		bool	TreatUnavailableAsInvalid
	)

static

Initialize an array from another array.

Definition at line 4206 of file SemaInit.cpp.

References clang::InitializationSequence::AddArrayInitLoopStep(), clang::InitializationSequence::AddArrayInitStep(), clang::Sema::Context, clang::ASTContext::getAsArrayType(), clang::ArrayType::getElementType(), clang::InitializedEntity::getType(), clang::InitializedEntity::InitializeElement(), clang::InitializationSequence::InitializeFrom(), and clang::Initializer.

Referenced by clang::InitializationSequence::InitializeFrom(), and TryListInitialization().

◆ TryConstructorInitialization()

static void TryConstructorInitialization	(	Sema &	S,
		const InitializedEntity &	Entity,
		const InitializationKind &	Kind,
		MultiExprArg	Args,
		QualType	DestType,
		QualType	DestArrayType,
		InitializationSequence &	Sequence,
		bool	IsListInit = `false`,
		bool	IsInitListCopy = `false`
	)

static

Attempt initialization by constructor (C++ [dcl.init]), which enumerates the constructors of the initialized entity and performs overload resolution to select the best.

Parameters

DestType	The destination class type.
DestArrayType	The destination type, which is either DestType or a (possibly multidimensional) array of DestType.
IsListInit	Is this list-initialization?
IsInitListCopy	Is this non-list-initialization resulting from a list-initialization from {x} where x is the same aggregate type as the entity?

Definition at line 4406 of file SemaInit.cpp.

Referenced by clang::InitializationSequence::InitializeFrom(), TryDefaultInitialization(), TryListInitialization(), and TryValueInitialization().

◆ TryDefaultInitialization()

static void TryDefaultInitialization	(	Sema &	S,
		const InitializedEntity &	Entity,
		const InitializationKind &	Kind,
		InitializationSequence &	Sequence
	)

static

Attempt default initialization (C++ [dcl.init]p6).

Definition at line 5656 of file SemaInit.cpp.

References clang::InitializationSequence::AddZeroInitializationStep(), clang::Sema::Context, clang::InitializationSequence::FK_DefaultInitOfConst, clang::ASTContext::getBaseElementType(), clang::Sema::getLangOpts(), clang::QualType::getQualifiers(), clang::InitializedEntity::getType(), clang::Qualifiers::hasObjCLifetime(), clang::InitializationKind::IK_Default, clang::QualType::isConstQualified(), clang::Type::isRecordType(), maybeRecoverWithZeroInitialization(), clang::InitializationSequence::SetFailed(), and TryConstructorInitialization().

Referenced by clang::InitializationSequence::InitializeFrom().

◆ TryInitializerListConstruction()

static bool TryInitializerListConstruction	(	Sema &	S,
		InitListExpr *	List,
		QualType	DestType,
		InitializationSequence &	Sequence,
		bool	TreatUnavailableAsInvalid
	)

static

When initializing from init list via constructor, handle initialization of an object of type std::initializer_list<T>.

Returns: true if we have handled initialization of an object of type std::initializer_list<T>, false otherwise.

Definition at line 4244 of file SemaInit.cpp.

References clang::InitializationSequence::AddStdInitializerListConstructionStep(), clang::Sema::Context, clang::InitializationKind::CreateDirectList(), E, clang::ASTContext::getConstantArrayType(), clang::ASTContext::getSizeType(), clang::ASTContext::getTypeSize(), clang::InitializedEntity::InitializeTemporary(), clang::Sema::isCompleteType(), clang::Sema::isStdInitializerList(), clang::Normal, clang::InitializationSequence::setIncompleteTypeFailure(), and TryListInitialization().

Referenced by TryListInitialization().

◆ TryListInitialization()

static void TryListInitialization	(	Sema &	S,
		const InitializedEntity &	Entity,
		const InitializationKind &	Kind,
		InitListExpr *	InitList,
		InitializationSequence &	Sequence,
		bool	TreatUnavailableAsInvalid
	)

static

Attempt list initialization (C++0x [dcl.init.list])

Definition at line 4778 of file SemaInit.cpp.

Referenced by clang::InitializationSequence::InitializeFrom(), TryInitializerListConstruction(), and TryReferenceListInitialization().

◆ tryObjCWritebackConversion()

static bool tryObjCWritebackConversion	(	Sema &	S,
		InitializationSequence &	Sequence,
		const InitializedEntity &	Entity,
		Expr *	Initializer
	)

static

◆ TryOCLSamplerInitialization()

static bool TryOCLSamplerInitialization	(	Sema &	S,
		InitializationSequence &	Sequence,
		QualType	DestType,
		Expr *	Initializer
	)

static

Definition at line 6308 of file SemaInit.cpp.

References clang::InitializationSequence::AddOCLSamplerInitStep(), clang::Sema::Context, clang::Sema::getLangOpts(), clang::Initializer, and clang::Type::isSamplerT().

Referenced by clang::InitializationSequence::InitializeFrom().

◆ TryOCLZeroOpaqueTypeInitialization()

static bool TryOCLZeroOpaqueTypeInitialization	(	Sema &	S,
		InitializationSequence &	Sequence,
		QualType	DestType,
		Expr *	Initializer
	)

static

Definition at line 6326 of file SemaInit.cpp.

References clang::InitializationSequence::AddOCLZeroOpaqueTypeStep(), clang::Sema::getLangOpts(), clang::Sema::getOpenCLOptions(), clang::Initializer, clang::OpenCLOptions::isAvailableOption(), clang::Type::isEventT(), clang::Type::isOCLIntelSubgroupAVCType(), clang::Type::isQueueT(), and IsZeroInitializer().

Referenced by clang::InitializationSequence::InitializeFrom().

◆ TryOrBuildParenListInitialization()

static void TryOrBuildParenListInitialization	(	Sema &	S,
		const InitializedEntity &	Entity,
		const InitializationKind &	Kind,
		ArrayRef< Expr * >	Args,
		InitializationSequence &	Sequence,
		bool	VerifyOnly,
		ExprResult *	Result = `nullptr`
	)

static

Definition at line 5694 of file SemaInit.cpp.

References clang::InitializationSequence::AddParenthesizedListInitStep(), clang::CXXRecordDecl::bases(), clang::Sema::BuildCXXDefaultInitExpr(), clang::Sema::checkInitializerLifetime(), clang::Sema::Context, clang::CXXParenListInitExpr::Create(), clang::InitializationKind::CreateForInit(), clang::InitializationKind::CreateValue(), clang::SemaBase::Diag(), clang::InitializationSequence::Diagnose(), E, clang::InitializationSequence::Failed(), clang::RecordDecl::fields(), clang::InitializationSequence::FK_ParenthesizedListInitFailed, clang::ActionResult< PtrTy, Compress >::get(), clang::Type::getAs(), clang::ASTContext::getAsArrayType(), clang::ASTContext::getAsConstantArrayType(), clang::Sema::getASTContext(), clang::ASTContext::getAsVariableArrayType(), clang::SourceRange::getBegin(), clang::Stmt::getBeginLoc(), clang::ASTContext::getConstantArrayType(), clang::ArrayType::getElementType(), clang::SourceRange::getEnd(), clang::Stmt::getEndLoc(), clang::Expr::getExprLoc(), clang::Decl::getLocation(), clang::Stmt::getSourceRange(), clang::ValueDecl::getType(), clang::InitializedEntity::getType(), clang::Decl::hasAttr(), clang::FieldDecl::hasInClassInitializer(), clang::InitializedEntity::InitializeBase(), clang::InitializedEntity::InitializeElement(), clang::InitializedEntity::InitializeMemberFromParenAggInit(), clang::Type::isArrayType(), clang::Type::isIncompleteArrayType(), clang::ActionResult< PtrTy, Compress >::isInvalid(), clang::Decl::isInvalidDecl(), clang::QualType::isNull(), clang::Type::isReferenceType(), clang::Type::isUnionType(), clang::FieldDecl::isUnnamedBitField(), clang::InitializedEntity::isVariableLengthArrayNew(), clang::Normal, clang::InitializationSequence::NormalSequence, clang::InitializationSequence::Perform(), clang::Result, clang::InitializationSequence::SetFailed(), clang::InitializationSequence::setSequenceKind(), and clang::T.

Referenced by clang::InitializationSequence::Diagnose(), clang::InitializationSequence::InitializeFrom(), and clang::InitializationSequence::Perform().

◆ TryReferenceInitialization()

static void TryReferenceInitialization	(	Sema &	S,
		const InitializedEntity &	Entity,
		const InitializationKind &	Kind,
		Expr *	Initializer,
		InitializationSequence &	Sequence,
		bool	TopLevelOfInitList
	)

static

Attempt reference initialization (C++0x [dcl.init.ref])

Definition at line 5205 of file SemaInit.cpp.

References clang::Type::castAs(), clang::Sema::Context, clang::Sema::getCompletedType(), getPointeeType(), clang::InitializedEntity::getType(), clang::ASTContext::getUnqualifiedArrayType(), clang::Initializer, ResolveOverloadedFunctionForReferenceBinding(), and TryReferenceInitializationCore().

Referenced by clang::InitializationSequence::InitializeFrom().

◆ TryReferenceInitializationCore()

static void TryReferenceInitializationCore	(	Sema &	S,
		const InitializedEntity &	Entity,
		const InitializationKind &	Kind,
		Expr *	Initializer,
		QualType	cv1T1,
		QualType	T1,
		Qualifiers	T1Quals,
		QualType	cv2T2,
		QualType	T2,
		Qualifiers	T2Quals,
		InitializationSequence &	Sequence,
		bool	TopLevelOfInitList
	)

static

Reference initialization without resolving overloaded functions.

We also can get here in C if we call a builtin which is declared as a function with a parameter of reference type (such as __builtin_va_end()).

Definition at line 5243 of file SemaInit.cpp.

Referenced by TryReferenceInitialization(), and TryReferenceListInitialization().

◆ TryReferenceListInitialization()

static void TryReferenceListInitialization	(	Sema &	S,
		const InitializedEntity &	Entity,
		const InitializationKind &	Kind,
		InitListExpr *	InitList,
		InitializationSequence &	Sequence,
		bool	TreatUnavailableAsInvalid
	)

static

Attempt list initialization of a reference.

Definition at line 4675 of file SemaInit.cpp.

Referenced by TryListInitialization().

◆ TryRefInitWithConversionFunction()

static OverloadingResult TryRefInitWithConversionFunction	(	Sema &	S,
		const InitializedEntity &	Entity,
		const InitializationKind &	Kind,
		Expr *	Initializer,
		bool	AllowRValues,
		bool	IsLValueRef,
		InitializationSequence &	Sequence
	)

static

Try a reference initialization that involves calling a conversion function.

Definition at line 5020 of file SemaInit.cpp.

Referenced by TryReferenceInitializationCore().

◆ TryStringLiteralInitialization()

static void TryStringLiteralInitialization	(	Sema &	S,
		const InitializedEntity &	Entity,
		const InitializationKind &	Kind,
		Expr *	Initializer,
		InitializationSequence &	Sequence
	)

static

Attempt character array initialization from a string literal (C++ [dcl.init.string], C99 6.7.8).

Definition at line 5568 of file SemaInit.cpp.

References clang::InitializationSequence::AddStringInitStep(), and clang::InitializedEntity::getType().

Referenced by clang::InitializationSequence::InitializeFrom().

◆ TryUserDefinedConversion()

static void TryUserDefinedConversion	(	Sema &	S,
		QualType	DestType,
		const InitializationKind &	Kind,
		Expr *	Initializer,
		InitializationSequence &	Sequence,
		bool	TopLevelOfInitList
	)

static

Attempt a user-defined conversion between two types (C++ [dcl.init]), which enumerates all conversion functions and performs overload resolution to select the best.

Definition at line 5958 of file SemaInit.cpp.

References clang::Sema::AddConversionCandidate(), clang::InitializationSequence::AddConversionSequenceStep(), clang::InitializationSequence::AddFinalCopy(), clang::Sema::AddOverloadCandidate(), clang::InitializationSequence::AddQualificationConversionStep(), clang::Sema::AddTemplateConversionCandidate(), clang::Sema::AddTemplateOverloadCandidate(), clang::InitializationSequence::AddUserConversionStep(), clang::OverloadCandidateSet::BestViableFunction(), clang::OverloadCandidateSet::clear(), clang::Sema::Context, clang::OverloadCandidateSet::CSK_InitByUserDefinedConversion, D, E, clang::InitializationSequence::FK_UserConversionOverloadFailed, clang::Function, clang::Qualifiers::getAddressSpace(), clang::Type::getAs(), clang::getConstructorInfo(), clang::Decl::getDeclContext(), clang::InitializationSequence::getFailedCandidateSet(), clang::Sema::getLangOpts(), clang::QualType::getQualifiers(), clang::FunctionTemplateDecl::getTemplatedDecl(), clang::QualType::getUnqualifiedType(), clang::CXXRecordDecl::getVisibleConversionFunctions(), clang::QualType::hasQualifiers(), clang::ASTContext::hasSameType(), clang::ASTContext::hasSameUnqualifiedType(), clang::InitializationKind::IK_Copy, clang::Initializer, clang::Sema::isCompleteType(), clang::Type::isRecordType(), clang::Type::isReferenceType(), clang::Sema::LookupConstructors(), clang::OR_Deleted, clang::Result, clang::OverloadCandidateSet::setDestAS(), clang::InitializationSequence::SetOverloadFailure(), clang::ImplicitConversionSequence::setStandard(), clang::OverloadCandidateSet::size(), clang::ImplicitConversionSequence::Standard, and clang::VK_PRValue.

Referenced by clang::InitializationSequence::InitializeFrom(), TryImplicitConversion(), and TryListConversion().

◆ TryValueInitialization()

static void TryValueInitialization	(	Sema &	S,
		const InitializedEntity &	Entity,
		const InitializationKind &	Kind,
		InitializationSequence &	Sequence,
		InitListExpr *	InitList = `nullptr`
	)

static

◆ updateGNUCompoundLiteralRValue()

static void updateGNUCompoundLiteralRValue ( Expr * E )

static

Fix a compound literal initializing an array so it's correctly marked as an rvalue.

Definition at line 183 of file SemaInit.cpp.

References E, clang::IgnoreParensSingleStep(), clang::Expr::setValueKind(), and clang::VK_PRValue.

Referenced by clang::InitializationSequence::Perform().

◆ updateStringLiteralType()

static void updateStringLiteralType	(	Expr *	E,
		QualType	Ty
	)

static

Update the type of a string literal, including any surrounding parentheses, to match the type of the object which it is initializing.

Definition at line 171 of file SemaInit.cpp.

References E, clang::IgnoreParensSingleStep(), clang::Expr::setType(), clang::Expr::setValueKind(), and clang::VK_PRValue.

Referenced by CheckStringInit().

◆ warnBracedScalarInit()

static void warnBracedScalarInit	(	Sema &	S,
		const InitializedEntity &	Entity,
		SourceRange	Braces
	)

static

Warn that Entity was of scalar type and was initialized by a single-element braced initializer list.

Definition at line 1231 of file SemaInit.cpp.

Enumerations

Functions

Enumeration Type Documentation

◆ InvalidICRKind

◆ StringInitFailureKind

Function Documentation

◆ canInitializeArrayWithEmbedDataString()

◆ canPerformArrayCopy()

◆ CheckArrayDesignatorExpr()

◆ CheckC23ConstexprInitConversion()

◆ CheckC23ConstexprInitStringLiteral()

◆ CheckCXX98CompatAccessibleCopy()

◆ checkDestructorReference()

◆ CheckForNullPointerDereference()

◆ checkIndirectCopyRestoreSource()

◆ CheckMoveOnConstruction()

◆ CheckStringInit()

◆ CloneDesignatedInitExpr()

◆ CopyObject()

◆ diagnoseListInit()

◆ DiagnoseNarrowingInInitList()

◆ DiagnoseUninitializedReference()

◆ emitBadConversionNotes()

◆ emitUninitializedExplicitInitFields()

◆ ExpandAnonymousFieldDesignator()

◆ getAssignmentAction()

◆ getInitializationLoc()

◆ hasAnyDesignatedInits()

◆ hasCompatibleArrayTypes()

◆ hasCopyOrMoveCtorParam()

◆ initializingConstexprVariable()

◆ isExplicitTemporary()

◆ isExprAnUnaddressableFunction()

◆ isIdiomaticBraceElisionEntity()

◆ isInitializedStructuredList()

◆ isInvalidICRSource()

◆ isLibstdcxxPointerReturnFalseHack()

◆ isNonReferenceableGLValue()

◆ isOrIsDerivedFromSpecializationOf()

◆ IsStringInit() [1/2]

◆ IsStringInit() [2/2]

◆ IsWideCharCompatible()

◆ IsZeroInitializer()

◆ MaybeProduceObjCObject()

◆ maybeRecoverWithZeroInitialization()

◆ PerformConstructorInitialization()

◆ ResolveConstructorOverload()

◆ ResolveOverloadedFunctionForReferenceBinding()

◆ shouldBindAsTemporary()

◆ shouldDestroyEntity()

◆ TryArrayCopy()

◆ TryConstructorInitialization()

◆ TryDefaultInitialization()

◆ TryInitializerListConstruction()

◆ TryListInitialization()

◆ tryObjCWritebackConversion()

◆ TryOCLSamplerInitialization()

◆ TryOCLZeroOpaqueTypeInitialization()

◆ TryOrBuildParenListInitialization()

◆ TryReferenceInitialization()

◆ TryReferenceInitializationCore()

◆ TryReferenceListInitialization()

◆ TryRefInitWithConversionFunction()

◆ TryStringLiteralInitialization()

◆ TryUserDefinedConversion()

◆ TryValueInitialization()

◆ updateGNUCompoundLiteralRValue()

◆ updateStringLiteralType()

◆ warnBracedScalarInit()