clang
15.0.0git
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#include "clang/AST/ASTContext.h"
#include "clang/AST/DeclObjC.h"
#include "clang/AST/ExprCXX.h"
#include "clang/AST/ExprObjC.h"
#include "clang/AST/ExprOpenMP.h"
#include "clang/AST/TypeLoc.h"
#include "clang/Basic/CharInfo.h"
#include "clang/Basic/SourceManager.h"
#include "clang/Basic/TargetInfo.h"
#include "clang/Sema/Designator.h"
#include "clang/Sema/Initialization.h"
#include "clang/Sema/Lookup.h"
#include "clang/Sema/SemaInternal.h"
#include "llvm/ADT/APInt.h"
#include "llvm/ADT/PointerIntPair.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
Go to the source code of this file.
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... | |
enum | PathLifetimeKind { Extend, ShouldExtend, NoExtend } |
Whether a path to an object supports lifetime extension. 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). More... | |
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. More... | |
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. More... | |
static void | updateGNUCompoundLiteralRValue (Expr *E) |
Fix a compound literal initializing an array so it's correctly marked as an rvalue. More... | |
static void | CheckStringInit (Expr *Str, QualType &DeclT, const ArrayType *AT, Sema &S) |
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. More... | |
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. More... | |
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. More... | |
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. More... | |
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. More... | |
static bool | maybeRecoverWithZeroInitialization (Sema &S, InitializationSequence &Sequence, const InitializedEntity &Entity) |
Tries to add a zero initializer. Returns true if that worked. More... | |
static void | MaybeProduceObjCObject (Sema &S, InitializationSequence &Sequence, const InitializedEntity &Entity) |
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]) More... | |
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>. More... | |
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. More... | |
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 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. More... | |
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) |
Reference initialization without resolving overloaded functions. More... | |
static void | TryValueInitialization (Sema &S, const InitializedEntity &Entity, const InitializationKind &Kind, InitializationSequence &Sequence, InitListExpr *InitList) |
Attempt value initialization (C++ [dcl.init]p7). More... | |
static void | TryReferenceListInitialization (Sema &S, const InitializedEntity &Entity, const InitializationKind &Kind, InitListExpr *InitList, InitializationSequence &Sequence, bool TreatUnavailableAsInvalid) |
Attempt list initialization of a reference. More... | |
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. More... | |
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. More... | |
static void | TryReferenceInitialization (Sema &S, const InitializedEntity &Entity, const InitializationKind &Kind, Expr *Initializer, InitializationSequence &Sequence) |
Attempt reference initialization (C++0x [dcl.init.ref]) More... | |
static bool | isNonReferenceableGLValue (Expr *E) |
Determine whether an expression is a non-referenceable glvalue (one to which a reference can never bind). More... | |
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). More... | |
static void | TryDefaultInitialization (Sema &S, const InitializedEntity &Entity, const InitializationKind &Kind, InitializationSequence &Sequence) |
Attempt default initialization (C++ [dcl.init]p6). More... | |
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. More... | |
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. More... | |
static InvalidICRKind | isInvalidICRSource (ASTContext &C, Expr *e, bool isAddressOf, bool &isWeakAccess) |
Determines whether this expression is an acceptable ICR source. More... | |
static void | checkIndirectCopyRestoreSource (Sema &S, Expr *src) |
Check whether the given expression is a valid operand for an indirect copy/restore. More... | |
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. More... | |
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 . More... | |
static bool | canPerformArrayCopy (const InitializedEntity &Entity) |
Determine whether we can perform an elementwise array copy for this kind of entity. More... | |
static Sema::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. More... | |
static bool | shouldDestroyEntity (const InitializedEntity &Entity) |
Whether the given entity, when initialized with an object created for that initialization, requires destruction. More... | |
static SourceLocation | getInitializationLoc (const InitializedEntity &Entity, Expr *Initializer) |
Get the location at which initialization diagnostics should appear. More... | |
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. More... | |
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. More... | |
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 LifetimeResult | getEntityLifetime (const InitializedEntity *Entity, const InitializedEntity *InitField=nullptr) |
Determine the declaration which an initialized entity ultimately refers to, for the purpose of lifetime-extending a temporary bound to a reference in the initialization of Entity . More... | |
static bool | isVarOnPath (IndirectLocalPath &Path, VarDecl *VD) |
static bool | pathContainsInit (IndirectLocalPath &Path) |
static void | visitLocalsRetainedByInitializer (IndirectLocalPath &Path, Expr *Init, LocalVisitor Visit, bool RevisitSubinits, bool EnableLifetimeWarnings) |
Visit the locals that would be reachable through an object initialized by the prvalue expression Init . More... | |
static void | visitLocalsRetainedByReferenceBinding (IndirectLocalPath &Path, Expr *Init, ReferenceKind RK, LocalVisitor Visit, bool EnableLifetimeWarnings) |
Visit the locals that would be reachable through a reference bound to the glvalue expression Init . More... | |
template<typename T > | |
static bool | isRecordWithAttr (QualType Type) |
static bool | isInStlNamespace (const Decl *D) |
static bool | shouldTrackImplicitObjectArg (const CXXMethodDecl *Callee) |
static bool | shouldTrackFirstArgument (const FunctionDecl *FD) |
static void | handleGslAnnotatedTypes (IndirectLocalPath &Path, Expr *Call, LocalVisitor Visit) |
static bool | implicitObjectParamIsLifetimeBound (const FunctionDecl *FD) |
static void | visitLifetimeBoundArguments (IndirectLocalPath &Path, Expr *Call, LocalVisitor Visit) |
static PathLifetimeKind | shouldLifetimeExtendThroughPath (const IndirectLocalPath &Path) |
Determine whether this is an indirect path to a temporary that we are supposed to lifetime-extend along. More... | |
static SourceRange | nextPathEntryRange (const IndirectLocalPath &Path, unsigned I, Expr *E) |
Find the range for the first interesting entry in the path at or after I. More... | |
static bool | pathOnlyInitializesGslPointer (IndirectLocalPath &Path) |
static void | DiagnoseNarrowingInInitList (Sema &S, const ImplicitConversionSequence &ICS, QualType PreNarrowingType, QualType EntityType, const Expr *PostInit) |
static void | CheckMoveOnConstruction (Sema &S, const Expr *InitExpr, bool IsReturnStmt) |
Provide warnings when std::move is used on construction. More... | |
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. More... | |
static void | emitBadConversionNotes (Sema &S, const InitializedEntity &entity, Expr *op) |
Emit notes associated with an initialization that failed due to a "simple" conversion failure. More... | |
static void | diagnoseListInit (Sema &S, const InitializedEntity &Entity, InitListExpr *InitList) |
static bool | NarrowingErrs (const LangOptions &L) |
static bool | isOrIsDerivedFromSpecializationOf (CXXRecordDecl *RD, ClassTemplateDecl *CTD) |
Determine whether RD is, or is derived from, a specialization of CTD. More... | |
enum InvalidICRKind |
The non-zero enum values here are indexes into diagnostic alternatives.
Enumerator | |
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IIK_okay | |
IIK_nonlocal | |
IIK_nonscalar |
Definition at line 5455 of file SemaInit.cpp.
enum PathLifetimeKind |
Whether a path to an object supports lifetime extension.
Definition at line 7531 of file SemaInit.cpp.
Enumerator | |
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SIF_None | |
SIF_NarrowStringIntoWideChar | |
SIF_WideStringIntoChar | |
SIF_IncompatWideStringIntoWideChar | |
SIF_UTF8StringIntoPlainChar | |
SIF_PlainStringIntoUTF8Char | |
SIF_Other |
Definition at line 50 of file SemaInit.cpp.
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Determine whether we can perform an elementwise array copy for this kind of entity.
Definition at line 5688 of file SemaInit.cpp.
References 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().
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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 3187 of file SemaInit.cpp.
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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 6442 of file SemaInit.cpp.
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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 1842 of file SemaInit.cpp.
References clang::Sema::CheckDestructorAccess(), clang::Sema::DiagnoseUseOfDecl(), clang::Type::getAsCXXRecordDecl(), clang::Sema::LookupDestructor(), clang::Sema::MarkFunctionReferenced(), and clang::Sema::PDiag().
Definition at line 7979 of file SemaInit.cpp.
Check whether the given expression is a valid operand for an indirect copy/restore.
Definition at line 5525 of file SemaInit.cpp.
Provide warnings when std::move is used on construction.
Definition at line 7882 of file SemaInit.cpp.
Definition at line 194 of file SemaInit.cpp.
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Definition at line 2354 of file SemaInit.cpp.
References clang::Sema::Context, clang::DesignatedInitExpr::designators(), clang::DesignatedInitExpr::getEqualOrColonLoc(), clang::DesignatedInitExpr::getInit(), clang::DesignatedInitExpr::getNumSubExprs(), clang::DesignatedInitExpr::getSubExpr(), and clang::DesignatedInitExpr::usesGNUSyntax().
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Make a (potentially elidable) temporary copy of the object provided by the given initializer by calling the appropriate copy constructor.
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. |
Definition at line 6289 of file SemaInit.cpp.
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Definition at line 9001 of file SemaInit.cpp.
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Definition at line 9857 of file SemaInit.cpp.
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Somewhere within T there is an uninitialized reference subobject.
Dig it out and diagnose it.
Definition at line 8931 of file SemaInit.cpp.
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Emit notes associated with an initialization that failed due to a "simple" conversion failure.
Definition at line 8970 of file SemaInit.cpp.
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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 2326 of file SemaInit.cpp.
References clang::IndirectFieldDecl::chain_begin(), clang::IndirectFieldDecl::chain_end(), clang::Sema::Context, clang::DesignatedInitExpr::ExpandDesignator(), clang::DesignatedInitExpr::getDesignator(), clang::DesignatedInitExpr::Designator::getDotLoc(), and clang::DesignatedInitExpr::Designator::getFieldLoc().
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Definition at line 6113 of file SemaInit.cpp.
References clang::Sema::AA_Casting, clang::Sema::AA_Converting, clang::Sema::AA_Initializing, clang::Sema::AA_Passing, clang::Sema::AA_Passing_CFAudited, clang::Sema::AA_Returning, clang::Sema::AA_Sending, clang::InitializedEntity::EK_ArrayElement, clang::InitializedEntity::EK_Base, clang::InitializedEntity::EK_Binding, clang::InitializedEntity::EK_BlockElement, clang::InitializedEntity::EK_ComplexElement, clang::InitializedEntity::EK_CompoundLiteralInit, clang::InitializedEntity::EK_Delegating, clang::InitializedEntity::EK_Exception, clang::InitializedEntity::EK_LambdaCapture, clang::InitializedEntity::EK_LambdaToBlockConversionBlockElement, clang::InitializedEntity::EK_Member, clang::InitializedEntity::EK_New, clang::InitializedEntity::EK_Parameter, clang::InitializedEntity::EK_Parameter_CF_Audited, clang::InitializedEntity::EK_RelatedResult, clang::InitializedEntity::EK_Result, clang::InitializedEntity::EK_StmtExprResult, clang::InitializedEntity::EK_TemplateParameter, clang::InitializedEntity::EK_Temporary, clang::InitializedEntity::EK_Variable, clang::InitializedEntity::EK_VectorElement, clang::InitializedEntity::getDecl(), clang::Decl::getDeclContext(), and clang::InitializedEntity::getKind().
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Determine the declaration which an initialized entity ultimately refers to, for the purpose of lifetime-extending a temporary bound to a reference in the initialization of Entity
.
Definition at line 6722 of file SemaInit.cpp.
References clang::InitializedEntity::EK_ArrayElement, clang::InitializedEntity::EK_Base, clang::InitializedEntity::EK_Binding, clang::InitializedEntity::EK_BlockElement, clang::InitializedEntity::EK_ComplexElement, clang::InitializedEntity::EK_CompoundLiteralInit, clang::InitializedEntity::EK_Delegating, clang::InitializedEntity::EK_Exception, clang::InitializedEntity::EK_LambdaCapture, clang::InitializedEntity::EK_LambdaToBlockConversionBlockElement, clang::InitializedEntity::EK_Member, clang::InitializedEntity::EK_New, clang::InitializedEntity::EK_Parameter, clang::InitializedEntity::EK_Parameter_CF_Audited, clang::InitializedEntity::EK_RelatedResult, clang::InitializedEntity::EK_Result, clang::InitializedEntity::EK_StmtExprResult, clang::InitializedEntity::EK_TemplateParameter, clang::InitializedEntity::EK_Temporary, clang::InitializedEntity::EK_Variable, clang::InitializedEntity::EK_VectorElement, clang::InitializedEntity::getKind(), clang::InitializedEntity::getParent(), clang::interp::InitField(), and clang::InitializedEntity::isDefaultMemberInitializer().
Referenced by clang::Sema::checkInitializerLifetime().
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Get the location at which initialization diagnostics should appear.
Definition at line 6232 of file SemaInit.cpp.
References clang::InitializedEntity::EK_ArrayElement, clang::InitializedEntity::EK_Base, clang::InitializedEntity::EK_Binding, clang::InitializedEntity::EK_BlockElement, clang::InitializedEntity::EK_ComplexElement, clang::InitializedEntity::EK_CompoundLiteralInit, clang::InitializedEntity::EK_Delegating, clang::InitializedEntity::EK_Exception, clang::InitializedEntity::EK_LambdaCapture, clang::InitializedEntity::EK_LambdaToBlockConversionBlockElement, clang::InitializedEntity::EK_Member, clang::InitializedEntity::EK_New, clang::InitializedEntity::EK_Parameter, clang::InitializedEntity::EK_Parameter_CF_Audited, clang::InitializedEntity::EK_RelatedResult, clang::InitializedEntity::EK_Result, clang::InitializedEntity::EK_StmtExprResult, clang::InitializedEntity::EK_TemplateParameter, clang::InitializedEntity::EK_Temporary, clang::InitializedEntity::EK_Variable, clang::InitializedEntity::EK_VectorElement, clang::InitializedEntity::getCaptureLoc(), clang::InitializedEntity::getDecl(), clang::InitializedEntity::getKind(), clang::Decl::getLocation(), clang::InitializedEntity::getReturnLoc(), clang::InitializedEntity::getThrowLoc(), and clang::Initializer.
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Definition at line 6985 of file SemaInit.cpp.
References clang::DeclContext::getParent(), clang::Decl::hasAttr(), shouldTrackFirstArgument(), shouldTrackImplicitObjectArg(), visitLocalsRetainedByInitializer(), and visitLocalsRetainedByReferenceBinding().
Referenced by visitLocalsRetainedByReferenceBinding().
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Definition at line 936 of file SemaInit.cpp.
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Determine whether we have compatible array types for the purposes of GNU by-copy array initialization.
Definition at line 5543 of file SemaInit.cpp.
References clang::ArrayType::getElementType(), clang::ASTContext::hasSameType(), clang::Type::isConstantArrayType(), and clang::Type::isIncompleteArrayType().
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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 3939 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().
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Definition at line 7044 of file SemaInit.cpp.
References clang::TypeLoc::getAsAdjusted(), clang::Decl::getASTContext(), clang::AttributedTypeLoc::getAttrAs(), clang::DeclarationName::getCXXOverloadedOperator(), clang::NamedDecl::getDeclName(), clang::ASTContext::getLValueReferenceType(), clang::AttributedTypeLoc::getModifiedLoc(), clang::FunctionDecl::getReturnType(), clang::TypeSourceInfo::getTypeLoc(), clang::DeclaratorDecl::getTypeSourceInfo(), clang::ASTContext::hasSameType(), clang::isCompoundAssignmentOperator(), and clang::Type::isLValueReferenceType().
Referenced by visitLifetimeBoundArguments().
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Returns true if the parameters describe a constructor initialization of an explicit temporary object, e.g.
"Point(x, y)".
Definition at line 6517 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.
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 5677 of file SemaInit.cpp.
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Determine whether Entity is an entity for which it is idiomatic to elide the braces in aggregate initialization.
Definition at line 1001 of file SemaInit.cpp.
References clang::Type::castAs(), clang::RecordDecl::field_empty(), clang::InitializedEntity::getKind(), clang::CXXRecordDecl::getNumBases(), clang::InitializedEntity::getParent(), and clang::InitializedEntity::getType().
Definition at line 6913 of file SemaInit.cpp.
References clang::Decl::getDeclContext().
Referenced by shouldTrackImplicitObjectArg().
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Determines whether this expression is an acceptable ICR source.
Definition at line 5458 of file SemaInit.cpp.
References clang::QualType::getObjCLifetime(), clang::Expr::getType(), clang::Expr::IgnoreParens(), IIK_nonlocal, IIK_nonscalar, IIK_okay, clang::Expr::isNullPointerConstant(), clang::Expr::NPC_ValueDependentIsNull, clang::Qualifiers::OCL_Weak, and clang::dataflow::var().
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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 5443 of file SemaInit.cpp.
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 4797 of file SemaInit.cpp.
References clang::Expr::refersToBitField(), clang::Expr::refersToMatrixElement(), and clang::Expr::refersToVectorElement().
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Determine whether RD is, or is derived from, a specialization of CTD.
Definition at line 10026 of file SemaInit.cpp.
References clang::declaresSameEntity(), and clang::CXXRecordDecl::forallBases().
Referenced by clang::Sema::DeduceTemplateSpecializationFromInitializer().
Definition at line 6904 of file SemaInit.cpp.
References clang::Type::getAsCXXRecordDecl(), and clang::Decl::hasAttr().
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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 64 of file SemaInit.cpp.
References clang::ASTContext::Char16Ty, clang::ASTContext::Char32Ty, clang::ASTContext::getCanonicalType(), clang::ArrayType::getElementType(), clang::StringLiteral::getKind(), clang::ASTContext::getLangOpts(), clang::CanQual< T >::getUnqualifiedType(), clang::ASTContext::getWideCharType(), clang::Type::isChar8Type(), clang::Type::isCharType(), IsWideCharCompatible(), clang::StringLiteral::Ordinary, SIF_IncompatWideStringIntoWideChar, SIF_NarrowStringIntoWideChar, SIF_None, SIF_Other, SIF_PlainStringIntoUTF8Char, SIF_UTF8StringIntoPlainChar, SIF_WideStringIntoChar, clang::ASTContext::typesAreCompatible(), clang::StringLiteral::UTF16, clang::StringLiteral::UTF32, clang::StringLiteral::UTF8, and clang::StringLiteral::Wide.
Referenced by IsStringInit(), and clang::Sema::IsStringInit().
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Definition at line 137 of file SemaInit.cpp.
References clang::ast_matchers::arrayType, clang::ASTContext::getAsArrayType(), IsStringInit(), and SIF_Other.
Definition at line 6880 of file SemaInit.cpp.
Referenced by visitLocalsRetainedByInitializer(), and visitLocalsRetainedByReferenceBinding().
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Check whether T is compatible with a wide character type (wchar_t, char16_t or char32_t).
Definition at line 40 of file SemaInit.cpp.
References clang::ASTContext::Char16Ty, clang::ASTContext::Char32Ty, clang::ASTContext::getLangOpts(), clang::ASTContext::getWideCharType(), and clang::ASTContext::typesAreCompatible().
Referenced by IsStringInit().
Definition at line 5619 of file SemaInit.cpp.
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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 3864 of file SemaInit.cpp.
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Tries to add a zero initializer. Returns true if that worked.
Definition at line 3844 of file SemaInit.cpp.
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Definition at line 9852 of file SemaInit.cpp.
References clang::LangOptions::isCompatibleWithMSVC(), and clang::LangOptions::MSVC2015.
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Find the range for the first interesting entry in the path at or after I.
Definition at line 7558 of file SemaInit.cpp.
References clang::Stmt::getSourceRange().
Referenced by clang::Sema::checkInitializerLifetime().
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Definition at line 6887 of file SemaInit.cpp.
Referenced by clang::Sema::checkInitializerLifetime().
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Definition at line 7588 of file SemaInit.cpp.
References End.
Referenced by clang::Sema::checkInitializerLifetime().
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Definition at line 6542 of file SemaInit.cpp.
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Definition at line 3953 of file SemaInit.cpp.
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Definition at line 4249 of file SemaInit.cpp.
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Whether we should bind a created object as a temporary when initializing the given entity.
Definition at line 6167 of file SemaInit.cpp.
References clang::InitializedEntity::EK_ArrayElement, clang::InitializedEntity::EK_Base, clang::InitializedEntity::EK_Binding, clang::InitializedEntity::EK_BlockElement, clang::InitializedEntity::EK_ComplexElement, clang::InitializedEntity::EK_CompoundLiteralInit, clang::InitializedEntity::EK_Delegating, clang::InitializedEntity::EK_Exception, clang::InitializedEntity::EK_LambdaCapture, clang::InitializedEntity::EK_LambdaToBlockConversionBlockElement, clang::InitializedEntity::EK_Member, clang::InitializedEntity::EK_New, clang::InitializedEntity::EK_Parameter, clang::InitializedEntity::EK_Parameter_CF_Audited, clang::InitializedEntity::EK_RelatedResult, clang::InitializedEntity::EK_Result, clang::InitializedEntity::EK_StmtExprResult, clang::InitializedEntity::EK_TemplateParameter, clang::InitializedEntity::EK_Temporary, clang::InitializedEntity::EK_Variable, clang::InitializedEntity::EK_VectorElement, and clang::InitializedEntity::getKind().
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Whether the given entity, when initialized with an object created for that initialization, requires destruction.
Definition at line 6200 of file SemaInit.cpp.
References clang::InitializedEntity::EK_ArrayElement, clang::InitializedEntity::EK_Base, clang::InitializedEntity::EK_Binding, clang::InitializedEntity::EK_BlockElement, clang::InitializedEntity::EK_ComplexElement, clang::InitializedEntity::EK_CompoundLiteralInit, clang::InitializedEntity::EK_Delegating, clang::InitializedEntity::EK_Exception, clang::InitializedEntity::EK_LambdaCapture, clang::InitializedEntity::EK_LambdaToBlockConversionBlockElement, clang::InitializedEntity::EK_Member, clang::InitializedEntity::EK_New, clang::InitializedEntity::EK_Parameter, clang::InitializedEntity::EK_Parameter_CF_Audited, clang::InitializedEntity::EK_RelatedResult, clang::InitializedEntity::EK_Result, clang::InitializedEntity::EK_StmtExprResult, clang::InitializedEntity::EK_TemplateParameter, clang::InitializedEntity::EK_Temporary, clang::InitializedEntity::EK_Variable, clang::InitializedEntity::EK_VectorElement, and clang::InitializedEntity::getKind().
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Determine whether this is an indirect path to a temporary that we are supposed to lifetime-extend along.
Definition at line 7546 of file SemaInit.cpp.
References Extend, NoExtend, and ShouldExtend.
Referenced by clang::Sema::checkInitializerLifetime().
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Definition at line 6961 of file SemaInit.cpp.
References clang::NamedDecl::getIdentifier(), clang::NamedDecl::getName(), clang::FunctionDecl::getNumParams(), clang::FunctionDecl::getParamDecl(), clang::Type::getPointeeCXXRecordDecl(), clang::FunctionDecl::getReturnType(), clang::ValueDecl::getType(), clang::TypeDecl::getTypeForDecl(), clang::Decl::isInStdNamespace(), clang::Type::isPointerType(), and clang::Type::isReferenceType().
Referenced by handleGslAnnotatedTypes().
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Definition at line 6928 of file SemaInit.cpp.
References isInStlNamespace().
Referenced by handleGslAnnotatedTypes().
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Attempt initialization by constructor (C++ [dcl.init]), which enumerates the constructors of the initialized entity and performs overload resolution to select the best.
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 type as the entity? |
Definition at line 4069 of file SemaInit.cpp.
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Attempt default initialization (C++ [dcl.init]p6).
Definition at line 5215 of file SemaInit.cpp.
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When initializing from init list via constructor, handle initialization of an object of type std::initializer_list<T>.
Definition at line 3904 of file SemaInit.cpp.
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Attempt list initialization (C++0x [dcl.init.list])
Definition at line 4384 of file SemaInit.cpp.
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Definition at line 5559 of file SemaInit.cpp.
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Definition at line 5606 of file SemaInit.cpp.
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Definition at line 5624 of file SemaInit.cpp.
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Attempt reference initialization (C++0x [dcl.init.ref])
Definition at line 4769 of file SemaInit.cpp.
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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 4806 of file SemaInit.cpp.
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Attempt list initialization of a reference.
Definition at line 4293 of file SemaInit.cpp.
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Try a reference initialization that involves calling a conversion function.
Definition at line 4584 of file SemaInit.cpp.
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Attempt character array initialization from a string literal (C++ [dcl.init.string], C99 6.7.8).
Definition at line 5128 of file SemaInit.cpp.
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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 5256 of file SemaInit.cpp.
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Attempt value initialization (C++ [dcl.init]p7).
Definition at line 5137 of file SemaInit.cpp.
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Fix a compound literal initializing an array so it's correctly marked as an rvalue.
Definition at line 174 of file SemaInit.cpp.
References clang::Expr::setValueKind(), and clang::VK_PRValue.
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 151 of file SemaInit.cpp.
References clang::Expr::setType(), clang::Expr::setValueKind(), and clang::VK_PRValue.
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Definition at line 7081 of file SemaInit.cpp.
References implicitObjectParamIsLifetimeBound(), visitLocalsRetainedByInitializer(), and visitLocalsRetainedByReferenceBinding().
Referenced by visitLocalsRetainedByReferenceBinding().
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Visit the locals that would be reachable through an object initialized by the prvalue expression Init
.
Definition at line 7258 of file SemaInit.cpp.
References clang::Type::getAsCXXRecordDecl(), clang::InitListExpr::getInit(), clang::InitListExpr::getInitializedFieldInUnion(), clang::InitListExpr::getNumInits(), clang::Expr::getType(), clang::ValueDecl::getType(), clang::Type::isArrayType(), clang::Type::isReferenceType(), clang::InitListExpr::isTransparent(), clang::TagDecl::isUnion(), isVarOnPath(), and visitLocalsRetainedByReferenceBinding().
Referenced by clang::Sema::checkInitializerLifetime(), handleGslAnnotatedTypes(), visitLifetimeBoundArguments(), and visitLocalsRetainedByReferenceBinding().
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Visit the locals that would be reachable through a reference bound to the glvalue expression Init
.
Definition at line 7130 of file SemaInit.cpp.
References clang::InitListExpr::getInit(), handleGslAnnotatedTypes(), clang::InitListExpr::isTransparent(), isVarOnPath(), visitLifetimeBoundArguments(), and visitLocalsRetainedByInitializer().
Referenced by clang::Sema::checkInitializerLifetime(), handleGslAnnotatedTypes(), visitLifetimeBoundArguments(), and visitLocalsRetainedByInitializer().
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Warn that Entity
was of scalar type and was initialized by a single-element braced initializer list.
Definition at line 1124 of file SemaInit.cpp.