clang 10.0.0git

Classes | Public Types | Public Member Functions | Static Public Member Functions | Protected Types | Protected Member Functions | Friends | List of all members
clang::FunctionDecl Class Reference

Represents a function declaration or definition. More...

`#include "clang/AST/Decl.h"`

Inheritance diagram for clang::FunctionDecl:
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Collaboration diagram for clang::FunctionDecl:
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## Classes
class | DefaultedFunctionInfo
| Stashed information about a defaulted function definition whose body has not yet been lazily generated. More...

## Public Types
enum | TemplatedKind { TK_NonTemplate, TK_FunctionTemplate, TK_MemberSpecialization, TK_FunctionTemplateSpecialization, TK_DependentFunctionTemplateSpecialization }
| The kind of templated function a FunctionDecl can be. More...
using | redecl_range = redeclarable_base::redecl_range
using | redecl_iterator = redeclarable_base::redecl_iterator
using | param_iterator = MutableArrayRef< ParmVarDecl * >::iterator
using | param_const_iterator = ArrayRef< ParmVarDecl * >::const_iterator
Public Types inherited from clang::NamedDecl
enum | ExplicitVisibilityKind { VisibilityForType, VisibilityForValue }
| Kinds of explicit visibility. More...
Public Types inherited from clang::Decl
enum | Kind
| Lists the kind of concrete classes of Decl. More...
enum | IdentifierNamespace { IDNS_Label = 0x0001, IDNS_Tag = 0x0002, IDNS_Type = 0x0004, IDNS_Member = 0x0008, IDNS_Namespace = 0x0010, IDNS_Ordinary = 0x0020, IDNS_ObjCProtocol = 0x0040, IDNS_OrdinaryFriend = 0x0080, IDNS_TagFriend = 0x0100, IDNS_Using = 0x0200, IDNS_NonMemberOperator = 0x0400, IDNS_LocalExtern = 0x0800, IDNS_OMPReduction = 0x1000, IDNS_OMPMapper = 0x2000 }
| IdentifierNamespace - The different namespaces in which declarations may appear. More...
enum | ObjCDeclQualifier { OBJC_TQ_None = 0x0, OBJC_TQ_In = 0x1, OBJC_TQ_Inout = 0x2, OBJC_TQ_Out = 0x4, OBJC_TQ_Bycopy = 0x8, OBJC_TQ_Byref = 0x10, OBJC_TQ_Oneway = 0x20, OBJC_TQ_CSNullability = 0x40 }
| ObjCDeclQualifier - 'Qualifiers' written next to the return and parameter types in method declarations. More...
enum | ModuleOwnershipKind : unsigned { ModuleOwnershipKind::Unowned, ModuleOwnershipKind::Visible, ModuleOwnershipKind::VisibleWhenImported, ModuleOwnershipKind::ModulePrivate }
| The kind of ownership a declaration has, for visibility purposes. More...
enum | FriendObjectKind { FOK_None, FOK_Declared, FOK_Undeclared }
using | attr_iterator = AttrVec::const_iterator
using | attr_range = llvm::iterator_range< attr_iterator >
using | redecl_range = llvm::iterator_range< redecl_iterator >
Public Types inherited from clang::DeclContext
using | decl_range = llvm::iterator_range< decl_iterator >
using | lookup_result = DeclContextLookupResult
using | lookup_iterator = lookup_result::iterator
using | lookups_range = llvm::iterator_range< all_lookups_iterator >
using | udir_iterator_base = llvm::iterator_adaptor_base< udir_iterator, lookup_iterator, std::random_access_iterator_tag, UsingDirectiveDecl * >
using | udir_range = llvm::iterator_range< udir_iterator >
using | ddiag_range = llvm::iterator_range< DeclContext::ddiag_iterator >
Public Types inherited from clang::Redeclarable< FunctionDecl >
using | redecl_range = llvm::iterator_range< redecl_iterator >

## Public Member Functions
DeclarationNameInfo | getNameInfo () const
void | getNameForDiagnostic (raw_ostream &OS, const PrintingPolicy &Policy, bool Qualified) const override
| Appends a human-readable name for this declaration into the given stream. More...
void | setRangeEnd (SourceLocation E)
SourceLocation | getEllipsisLoc () const
| Returns the location of the ellipsis of a variadic function. More...
SourceRange | getSourceRange () const override LLVM_READONLY
| Source range that this declaration covers. More...
bool | hasBody (const FunctionDecl *&Definition) const
| Returns true if the function has a body. More...
bool | hasBody () const override
| Returns true if this `Decl` represents a declaration for a body of code, such as a function or method definition. More...
bool | hasTrivialBody () const
| Returns whether the function has a trivial body that does not require any specific codegen. More...
bool | isDefined (const FunctionDecl *&Definition) const
| Returns true if the function has a definition that does not need to be instantiated. More...
virtual bool | isDefined () const
FunctionDecl * | getDefinition ()
| Get the definition for this declaration. More...
const FunctionDecl * | getDefinition () const
Stmt * | getBody (const FunctionDecl *&Definition) const
| Retrieve the body (definition) of the function. More...
Stmt * | getBody () const override
| getBody - If this Decl represents a declaration for a body of code, such as a function or method definition, this method returns the top-level Stmt* of that body. More...
bool | isThisDeclarationADefinition () const
| Returns whether this specific declaration of the function is also a definition that does not contain uninstantiated body. More...
bool | doesThisDeclarationHaveABody () const
| Returns whether this specific declaration of the function has a body. More...
void | setBody (Stmt *B)
void | setLazyBody (uint64_t Offset)
void | setDefaultedFunctionInfo (DefaultedFunctionInfo *Info)
DefaultedFunctionInfo * | getDefaultedFunctionInfo () const
bool | isVariadic () const
| Whether this function is variadic. More...
bool | isVirtualAsWritten () const
| Whether this function is marked as virtual explicitly. More...
void | setVirtualAsWritten (bool V)
| State that this function is marked as virtual explicitly. More...
bool | isPure () const
| Whether this virtual function is pure, i.e. More...
void | setPure (bool P=true)
bool | isLateTemplateParsed () const
| Whether this templated function will be late parsed. More...
void | setLateTemplateParsed (bool ILT=true)
| State that this templated function will be late parsed. More...
bool | isTrivial () const
| Whether this function is "trivial" in some specialized C++ senses. More...
void | setTrivial (bool IT)
bool | isTrivialForCall () const
void | setTrivialForCall (bool IT)
bool | isDefaulted () const
| Whether this function is defaulted per C++0x. More...
void | setDefaulted (bool D=true)
bool | isExplicitlyDefaulted () const
| Whether this function is explicitly defaulted per C++0x. More...
void | setExplicitlyDefaulted (bool ED=true)
| State that this function is explicitly defaulted per C++0x. More...
bool | isUserProvided () const
| True if this method is user-declared and was not deleted or defaulted on its first declaration. More...
bool | hasImplicitReturnZero () const
| Whether falling off this function implicitly returns null/zero. More...
void | setHasImplicitReturnZero (bool IRZ)
| State that falling off this function implicitly returns null/zero. More...
bool | hasPrototype () const
| Whether this function has a prototype, either because one was explicitly written or because it was "inherited" by merging a declaration without a prototype with a declaration that has a prototype. More...
bool | hasWrittenPrototype () const
| Whether this function has a written prototype. More...
void | setHasWrittenPrototype (bool P=true)
| State that this function has a written prototype. More...
bool | hasInheritedPrototype () const
| Whether this function inherited its prototype from a previous declaration. More...
void | setHasInheritedPrototype (bool P=true)
| State that this function inherited its prototype from a previous declaration. More...
bool | isConstexpr () const
| Whether this is a (C++11) constexpr function or constexpr constructor. More...
void | setConstexprKind (ConstexprSpecKind CSK)
ConstexprSpecKind | getConstexprKind () const
bool | isConstexprSpecified () const
bool | isConsteval () const
bool | instantiationIsPending () const
| Whether the instantiation of this function is pending. More...
void | setInstantiationIsPending (bool IC)
| State that the instantiation of this function is pending. More...
bool | usesSEHTry () const
| Indicates the function uses __try. More...
void | setUsesSEHTry (bool UST)
bool | usesFPIntrin () const
| Indicates the function uses Floating Point constrained intrinsics. More...
void | setUsesFPIntrin (bool Val)
bool | isDeleted () const
| Whether this function has been deleted. More...
bool | isDeletedAsWritten () const
void | setDeletedAsWritten (bool D=true)
bool | isMain () const
| Determines whether this function is "main", which is the entry point into an executable program. More...
bool | isMSVCRTEntryPoint () const
| Determines whether this function is a MSVCRT user defined entry point. More...
bool | isReservedGlobalPlacementOperator () const
| Determines whether this operator new or delete is one of the reserved global placement operators: void *operator new(size_t, void *); void *operator new[](size_t, void *); void operator delete(void *, void *); void operator delete[](void *, void *); These functions have special behavior under [new.delete.placement]: These functions are reserved, a C++ program may not define functions that displace the versions in the Standard C++ library. More...
bool | isReplaceableGlobalAllocationFunction (bool *IsAligned=nullptr) const
| Determines whether this function is one of the replaceable global allocation functions: void *operator new(size_t); void *operator new(size_t, const std::nothrow_t &) noexcept; void *operator new[](size_t); void *operator new[](size_t, const std::nothrow_t &) noexcept; void operator delete(void *) noexcept; void operator delete(void *, std::size_t) noexcept; [C++1y] void operator delete(void *, const std::nothrow_t &) noexcept; void operator delete[](void *) noexcept; void operator delete[](void *, std::size_t) noexcept; [C++1y] void operator delete[](void *, const std::nothrow_t &) noexcept; These functions have special behavior under C++1y [expr.new]: An implementation is allowed to omit a call to a replaceable global allocation function. More...
bool | isInlineBuiltinDeclaration () const
| Determine if this function provides an inline implementation of a builtin. More...
bool | isDestroyingOperatorDelete () const
| Determine whether this is a destroying operator delete. More...
LanguageLinkage | getLanguageLinkage () const
| Compute the language linkage. More...
bool | isExternC () const
| Determines whether this function is a function with external, C linkage. More...
bool | isInExternCContext () const
| Determines whether this function's context is, or is nested within, a C++ extern "C" linkage spec. More...
bool | isInExternCXXContext () const
| Determines whether this function's context is, or is nested within, a C++ extern "C++" linkage spec. More...
bool | isGlobal () const
| Determines whether this is a global function. More...
bool | isNoReturn () const
| Determines whether this function is known to be 'noreturn', through an attribute on its declaration or its type. More...
bool | hasSkippedBody () const
| True if the function was a definition but its body was skipped. More...
void | setHasSkippedBody (bool Skipped=true)
bool | willHaveBody () const
| True if this function will eventually have a body, once it's fully parsed. More...
void | setWillHaveBody (bool V=true)
bool | isMultiVersion () const
| True if this function is considered a multiversioned function. More...
void | setIsMultiVersion (bool V=true)
| Sets the multiversion state for this declaration and all of its redeclarations. More...
MultiVersionKind | getMultiVersionKind () const
| Gets the kind of multiversioning attribute this declaration has. More...
bool | isCPUDispatchMultiVersion () const
| True if this function is a multiversioned dispatch function as a part of the cpu_specific/cpu_dispatch functionality. More...
bool | isCPUSpecificMultiVersion () const
| True if this function is a multiversioned processor specific function as a part of the cpu_specific/cpu_dispatch functionality. More...
bool | isTargetMultiVersion () const
| True if this function is a multiversioned dispatch function as a part of the target functionality. More...
void | getAssociatedConstraints (SmallVectorImpl< const Expr *> &AC) const
| Get the associated-constraints of this function declaration. More...
void | setPreviousDeclaration (FunctionDecl *PrevDecl)
FunctionDecl * | getCanonicalDecl () override
| Retrieves the "canonical" declaration of the given declaration. More...
const FunctionDecl * | getCanonicalDecl () const
unsigned | getBuiltinID (bool ConsiderWrapperFunctions=false) const
| Returns a value indicating whether this function corresponds to a builtin function. More...
ArrayRef< ParmVarDecl * > | parameters () const
MutableArrayRef< ParmVarDecl * > | parameters ()
bool | param_empty () const
param_iterator | param_begin ()
param_iterator | param_end ()
param_const_iterator | param_begin () const
param_const_iterator | param_end () const
size_t | param_size () const
unsigned | getNumParams () const
| Return the number of parameters this function must have based on its FunctionType. More...
const ParmVarDecl * | getParamDecl (unsigned i) const
ParmVarDecl * | getParamDecl (unsigned i)
void | setParams (ArrayRef< ParmVarDecl *> NewParamInfo)
unsigned | getMinRequiredArguments () const
| Returns the minimum number of arguments needed to call this function. More...
FunctionTypeLoc | getFunctionTypeLoc () const
| Find the source location information for how the type of this function was written. More...
QualType | getReturnType () const
SourceRange | getReturnTypeSourceRange () const
| Attempt to compute an informative source range covering the function return type. More...
SourceRange | getParametersSourceRange () const
| Attempt to compute an informative source range covering the function parameters, including the ellipsis of a variadic function. More...
QualType | getDeclaredReturnType () const
| Get the declared return type, which may differ from the actual return type if the return type is deduced. More...
ExceptionSpecificationType | getExceptionSpecType () const
| Gets the ExceptionSpecificationType as declared. More...
SourceRange | getExceptionSpecSourceRange () const
| Attempt to compute an informative source range covering the function exception specification, if any. More...
QualType | getCallResultType () const
| Determine the type of an expression that calls this function. More...
StorageClass | getStorageClass () const
| Returns the storage class as written in the source. More...
void | setStorageClass (StorageClass SClass)
| Sets the storage class as written in the source. More...
bool | isInlineSpecified () const
| Determine whether the "inline" keyword was specified for this function. More...
void | setInlineSpecified (bool I)
| Set whether the "inline" keyword was specified for this function. More...
void | setImplicitlyInline (bool I=true)
| Flag that this function is implicitly inline. More...
bool | isInlined () const
| Determine whether this function should be inlined, because it is either marked "inline" or "constexpr" or is a member function of a class that was defined in the class body. More...
bool | isInlineDefinitionExternallyVisible () const
| For an inline function definition in C, or for a gnu_inline function in C++, determine whether the definition will be externally visible. More...
bool | isMSExternInline () const
| The combination of the extern and inline keywords under MSVC forces the function to be required. More...
bool | doesDeclarationForceExternallyVisibleDefinition () const
| For a function declaration in C or C++, determine whether this declaration causes the definition to be externally visible. More...
bool | isStatic () const
bool | isOverloadedOperator () const
| Whether this function declaration represents an C++ overloaded operator, e.g., "operator+". More...
OverloadedOperatorKind | getOverloadedOperator () const
| getOverloadedOperator - Which C++ overloaded operator this function represents, if any. More...
const IdentifierInfo * | getLiteralIdentifier () const
| getLiteralIdentifier - The literal suffix identifier this function represents, if any. More...
FunctionDecl * | getInstantiatedFromMemberFunction () const
| If this function is an instantiation of a member function of a class template specialization, retrieves the function from which it was instantiated. More...
TemplatedKind | getTemplatedKind () const
| What kind of templated function this is. More...
MemberSpecializationInfo * | getMemberSpecializationInfo () const
| If this function is an instantiation of a member function of a class template specialization, retrieves the member specialization information. More...
void | setInstantiationOfMemberFunction (FunctionDecl *FD, TemplateSpecializationKind TSK)
| Specify that this record is an instantiation of the member function FD. More...
FunctionTemplateDecl * | getDescribedFunctionTemplate () const
| Retrieves the function template that is described by this function declaration. More...
void | setDescribedFunctionTemplate (FunctionTemplateDecl *Template)
bool | isFunctionTemplateSpecialization () const
| Determine whether this function is a function template specialization. More...
FunctionTemplateSpecializationInfo * | getTemplateSpecializationInfo () const
| If this function is actually a function template specialization, retrieve information about this function template specialization. More...
bool | isImplicitlyInstantiable () const
| Determines whether this function is a function template specialization or a member of a class template specialization that can be implicitly instantiated. More...
bool | isTemplateInstantiation () const
| Determines if the given function was instantiated from a function template. More...
FunctionDecl * | getTemplateInstantiationPattern () const
| Retrieve the function declaration from which this function could be instantiated, if it is an instantiation (rather than a non-template or a specialization, for example). More...
FunctionTemplateDecl * | getPrimaryTemplate () const
| Retrieve the primary template that this function template specialization either specializes or was instantiated from. More...
const TemplateArgumentList * | getTemplateSpecializationArgs () const
| Retrieve the template arguments used to produce this function template specialization from the primary template. More...
const ASTTemplateArgumentListInfo * | getTemplateSpecializationArgsAsWritten () const
| Retrieve the template argument list as written in the sources, if any. More...
void | setFunctionTemplateSpecialization (FunctionTemplateDecl *Template, const TemplateArgumentList *TemplateArgs, void *InsertPos, TemplateSpecializationKind TSK=TSK_ImplicitInstantiation, const TemplateArgumentListInfo *TemplateArgsAsWritten=nullptr, SourceLocation PointOfInstantiation=SourceLocation())
| Specify that this function declaration is actually a function template specialization. More...
void | setDependentTemplateSpecialization (ASTContext &Context, const UnresolvedSetImpl &Templates, const TemplateArgumentListInfo &TemplateArgs)
| Specifies that this function declaration is actually a dependent function template specialization. More...
DependentFunctionTemplateSpecializationInfo * | getDependentSpecializationInfo () const
TemplateSpecializationKind | getTemplateSpecializationKind () const
| Determine what kind of template instantiation this function represents. More...
TemplateSpecializationKind | getTemplateSpecializationKindForInstantiation () const
| Determine the kind of template specialization this function represents for the purpose of template instantiation. More...
void | setTemplateSpecializationKind (TemplateSpecializationKind TSK, SourceLocation PointOfInstantiation=SourceLocation())
| Determine what kind of template instantiation this function represents. More...
SourceLocation | getPointOfInstantiation () const
| Retrieve the (first) point of instantiation of a function template specialization or a member of a class template specialization. More...
bool | isOutOfLine () const override
| Determine whether this is or was instantiated from an out-of-line definition of a member function. More...
unsigned | getMemoryFunctionKind () const
| Identify a memory copying or setting function. More...
unsigned | getODRHash ()
| Returns ODRHash of the function. More...
unsigned | getODRHash () const
| Returns cached ODRHash of the function. More...
Public Member Functions inherited from clang::DeclaratorDecl
TypeSourceInfo * | getTypeSourceInfo () const
void | setTypeSourceInfo (TypeSourceInfo *TI)
SourceLocation | getInnerLocStart () const
| Return start of source range ignoring outer template declarations. More...
void | setInnerLocStart (SourceLocation L)
SourceLocation | getOuterLocStart () const
| Return start of source range taking into account any outer template declarations. More...
SourceLocation | getBeginLoc () const LLVM_READONLY
NestedNameSpecifier * | getQualifier () const
| Retrieve the nested-name-specifier that qualifies the name of this declaration, if it was present in the source. More...
NestedNameSpecifierLoc | getQualifierLoc () const
| Retrieve the nested-name-specifier (with source-location information) that qualifies the name of this declaration, if it was present in the source. More...
void | setQualifierInfo (NestedNameSpecifierLoc QualifierLoc)
Expr * | getTrailingRequiresClause ()
| Get the constraint-expression introduced by the trailing requires-clause in the function/member declaration, or null if no requires-clause was provided. More...
const Expr * | getTrailingRequiresClause () const
void | setTrailingRequiresClause (Expr *TrailingRequiresClause)
unsigned | getNumTemplateParameterLists () const
TemplateParameterList * | getTemplateParameterList (unsigned index) const
void | setTemplateParameterListsInfo (ASTContext &Context, ArrayRef< TemplateParameterList *> TPLists)
SourceLocation | getTypeSpecStartLoc () const
SourceLocation | getTypeSpecEndLoc () const
Public Member Functions inherited from clang::ValueDecl
QualType | getType () const
void | setType (QualType newType)
bool | isWeak () const
| Determine whether this symbol is weakly-imported, or declared with the weak or weak-ref attr. More...
Public Member Functions inherited from clang::NamedDecl
IdentifierInfo * | getIdentifier () const
| Get the identifier that names this declaration, if there is one. More...
StringRef | getName () const
| Get the name of identifier for this declaration as a StringRef. More...
std::string | getNameAsString () const
| Get a human-readable name for the declaration, even if it is one of the special kinds of names (C++ constructor, Objective-C selector, etc). More...
virtual void | printName (raw_ostream &os) const
DeclarationName | getDeclName () const
| Get the actual, stored name of the declaration, which may be a special name. More...
void | setDeclName (DeclarationName N)
| Set the name of this declaration. More...
void | printQualifiedName (raw_ostream &OS) const
| Returns a human-readable qualified name for this declaration, like A::B::i, for i being member of namespace A::B. More...
void | printQualifiedName (raw_ostream &OS, const PrintingPolicy &Policy) const
void | printNestedNameSpecifier (raw_ostream &OS) const
| Print only the nested name specifier part of a fully-qualified name, including the '::' at the end. More...
void | printNestedNameSpecifier (raw_ostream &OS, const PrintingPolicy &Policy) const
std::string | getQualifiedNameAsString () const
bool | declarationReplaces (NamedDecl *OldD, bool IsKnownNewer=true) const
| Determine whether this declaration, if known to be well-formed within its context, will replace the declaration OldD if introduced into scope. More...
bool | hasLinkage () const
| Determine whether this declaration has linkage. More...
bool | isCXXClassMember () const
| Determine whether this declaration is a C++ class member. More...
bool | isCXXInstanceMember () const
| Determine whether the given declaration is an instance member of a C++ class. More...
Linkage | getLinkageInternal () const
| Determine what kind of linkage this entity has. More...
Linkage | getFormalLinkage () const
| Get the linkage from a semantic point of view. More...
bool | hasExternalFormalLinkage () const
| True if this decl has external linkage. More...
bool | isExternallyVisible () const
bool | isExternallyDeclarable () const
| Determine whether this declaration can be redeclared in a different translation unit. More...
Visibility | getVisibility () const
| Determines the visibility of this entity. More...
LinkageInfo | getLinkageAndVisibility () const
| Determines the linkage and visibility of this entity. More...
Optional< Visibility > | getExplicitVisibility (ExplicitVisibilityKind kind) const
| If visibility was explicitly specified for this declaration, return that visibility. More...
bool | isLinkageValid () const
| True if the computed linkage is valid. More...
bool | hasLinkageBeenComputed () const
| True if something has required us to compute the linkage of this declaration. More...
NamedDecl * | getUnderlyingDecl ()
| Looks through UsingDecls and ObjCCompatibleAliasDecls for the underlying named decl. More...
const NamedDecl * | getUnderlyingDecl () const
NamedDecl * | getMostRecentDecl ()
const NamedDecl * | getMostRecentDecl () const
ObjCStringFormatFamily | getObjCFStringFormattingFamily () const
Public Member Functions inherited from clang::Decl
| Decl ()=delete
| Decl (const Decl &)=delete
| Decl (Decl &&)=delete
Decl & | operator= (const Decl &)=delete
Decl & | operator= (Decl &&)=delete
SourceLocation | getBeginLoc () const LLVM_READONLY
SourceLocation | getEndLoc () const LLVM_READONLY
SourceLocation | getLocation () const
void | setLocation (SourceLocation L)
Kind | getKind () const
const char * | getDeclKindName () const
Decl * | getNextDeclInContext ()
const Decl * | getNextDeclInContext () const
DeclContext * | getDeclContext ()
const DeclContext * | getDeclContext () const
Decl * | getNonClosureContext ()
| Find the innermost non-closure ancestor of this declaration, walking up through blocks, lambdas, etc. More...
const Decl * | getNonClosureContext () const
TranslationUnitDecl * | getTranslationUnitDecl ()
const TranslationUnitDecl * | getTranslationUnitDecl () const
bool | isInAnonymousNamespace () const
bool | isInStdNamespace () const
ASTContext & | getASTContext () const LLVM_READONLY
void | setAccess (AccessSpecifier AS)
AccessSpecifier | getAccess () const
AccessSpecifier | getAccessUnsafe () const
| Retrieve the access specifier for this declaration, even though it may not yet have been properly set. More...
bool | hasAttrs () const
void | setAttrs (const AttrVec &Attrs)
AttrVec & | getAttrs ()
const AttrVec & | getAttrs () const
void | dropAttrs ()
void | addAttr (Attr *A)
attr_range | attrs () const
attr_iterator | attr_begin () const
attr_iterator | attr_end () const
template<typename T >
void | dropAttr ()
template<typename T >
llvm::iterator_range< specific_attr_iterator< T > > | specific_attrs () const
template<typename T >
specific_attr_iterator< T > | specific_attr_begin () const
template<typename T >
specific_attr_iterator< T > | specific_attr_end () const
template<typename T >
T * | getAttr () const
template<typename T >
bool | hasAttr () const
unsigned | getMaxAlignment () const
| getMaxAlignment - return the maximum alignment specified by attributes on this decl, 0 if there are none. More...
void | setInvalidDecl (bool Invalid=true)
| setInvalidDecl - Indicates the Decl had a semantic error. More...
bool | isInvalidDecl () const
bool | isImplicit () const
| isImplicit - Indicates whether the declaration was implicitly generated by the implementation. More...
void | setImplicit (bool I=true)
bool | isUsed (bool CheckUsedAttr=true) const
| Whether any (re-)declaration of the entity was used, meaning that a definition is required. More...
void | setIsUsed ()
| Set whether the declaration is used, in the sense of odr-use. More...
void | markUsed (ASTContext &C)
| Mark the declaration used, in the sense of odr-use. More...
bool | isReferenced () const
| Whether any declaration of this entity was referenced. More...
bool | isThisDeclarationReferenced () const
| Whether this declaration was referenced. More...
void | setReferenced (bool R=true)
bool | isTopLevelDeclInObjCContainer () const
| Whether this declaration is a top-level declaration (function, global variable, etc.) that is lexically inside an objc container definition. More...
void | setTopLevelDeclInObjCContainer (bool V=true)
ExternalSourceSymbolAttr * | getExternalSourceSymbolAttr () const
| Looks on this and related declarations for an applicable external source symbol attribute. More...
bool | isModulePrivate () const
| Whether this declaration was marked as being private to the module in which it was defined. More...
bool | hasDefiningAttr () const
| Return true if this declaration has an attribute which acts as definition of the entity, such as 'alias' or 'ifunc'. More...
const Attr * | getDefiningAttr () const
| Return this declaration's defining attribute if it has one. More...
AvailabilityResult | getAvailability (std::string *Message=nullptr, VersionTuple EnclosingVersion=VersionTuple(), StringRef *RealizedPlatform=nullptr) const
| Determine the availability of the given declaration. More...
VersionTuple | getVersionIntroduced () const
| Retrieve the version of the target platform in which this declaration was introduced. More...
bool | isDeprecated (std::string *Message=nullptr) const
| Determine whether this declaration is marked 'deprecated'. More...
bool | isUnavailable (std::string *Message=nullptr) const
| Determine whether this declaration is marked 'unavailable'. More...
bool | isWeakImported () const
| Determine whether this is a weak-imported symbol. More...
bool | canBeWeakImported (bool &IsDefinition) const
| Determines whether this symbol can be weak-imported, e.g., whether it would be well-formed to add the weak_import attribute. More...
bool | isFromASTFile () const
| Determine whether this declaration came from an AST file (such as a precompiled header or module) rather than having been parsed. More...
unsigned | getGlobalID () const
| Retrieve the global declaration ID associated with this declaration, which specifies where this Decl was loaded from. More...
unsigned | getOwningModuleID () const
| Retrieve the global ID of the module that owns this particular declaration. More...
Module * | getImportedOwningModule () const
| Get the imported owning module, if this decl is from an imported (non-local) module. More...
Module * | getLocalOwningModule () const
| Get the local owning module, if known. More...
void | setLocalOwningModule (Module *M)
bool | hasOwningModule () const
| Is this declaration owned by some module? More...
Module * | getOwningModule () const
| Get the module that owns this declaration (for visibility purposes). More...
Module * | getOwningModuleForLinkage (bool IgnoreLinkage=false) const
| Get the module that owns this declaration for linkage purposes. More...
bool | isHidden () const
| Determine whether this declaration might be hidden from name lookup. More...
void | setVisibleDespiteOwningModule ()
| Set that this declaration is globally visible, even if it came from a module that is not visible. More...
ModuleOwnershipKind | getModuleOwnershipKind () const
| Get the kind of module ownership for this declaration. More...
void | setModuleOwnershipKind (ModuleOwnershipKind MOK)
| Set whether this declaration is hidden from name lookup. More...
unsigned | getIdentifierNamespace () const
bool | isInIdentifierNamespace (unsigned NS) const
bool | hasTagIdentifierNamespace () const
DeclContext * | getLexicalDeclContext ()
| getLexicalDeclContext - The declaration context where this Decl was lexically declared (LexicalDC). More...
const DeclContext * | getLexicalDeclContext () const
void | setDeclContext (DeclContext *DC)
| setDeclContext - Set both the semantic and lexical DeclContext to DC. More...
void | setLexicalDeclContext (DeclContext *DC)
bool | isTemplated () const
| Determine whether this declaration is a templated entity (whether it is. More...
bool | isDefinedOutsideFunctionOrMethod () const
| isDefinedOutsideFunctionOrMethod - This predicate returns true if this scoped decl is defined outside the current function or method. More...
bool | isLexicallyWithinFunctionOrMethod () const
| Returns true if this declaration lexically is inside a function. More...
const DeclContext * | getParentFunctionOrMethod () const
| If this decl is defined inside a function/method/block it returns the corresponding DeclContext, otherwise it returns null. More...
DeclContext * | getParentFunctionOrMethod ()
const Decl * | getCanonicalDecl () const
bool | isCanonicalDecl () const
| Whether this particular Decl is a canonical one. More...
redecl_range | redecls () const
| Returns an iterator range for all the redeclarations of the same decl. More...
redecl_iterator | redecls_begin () const
redecl_iterator | redecls_end () const
Decl * | getPreviousDecl ()
| Retrieve the previous declaration that declares the same entity as this declaration, or NULL if there is no previous declaration. More...
const Decl * | getPreviousDecl () const
| Retrieve the previous declaration that declares the same entity as this declaration, or NULL if there is no previous declaration. More...
bool | isFirstDecl () const
| True if this is the first declaration in its redeclaration chain. More...
Decl * | getMostRecentDecl ()
| Retrieve the most recent declaration that declares the same entity as this declaration (which may be this declaration). More...
const Decl * | getMostRecentDecl () const
| Retrieve the most recent declaration that declares the same entity as this declaration (which may be this declaration). More...
SourceLocation | getBodyRBrace () const
| getBodyRBrace - Gets the right brace of the body, if a body exists. More...
bool | isTemplateParameter () const
| isTemplateParameter - Determines whether this declaration is a template parameter. More...
bool | isTemplateParameterPack () const
| isTemplateParameter - Determines whether this declaration is a template parameter pack. More...
bool | isParameterPack () const
| Whether this declaration is a parameter pack. More...
bool | isTemplateDecl () const
| returns true if this declaration is a template More...
bool | isFunctionOrFunctionTemplate () const
| Whether this declaration is a function or function template. More...
TemplateDecl * | getDescribedTemplate () const
| If this is a declaration that describes some template, this method returns that template declaration. More...
FunctionDecl * | getAsFunction () LLVM_READONLY
| Returns the function itself, or the templated function if this is a function template. More...
const FunctionDecl * | getAsFunction () const
void | setLocalExternDecl ()
| Changes the namespace of this declaration to reflect that it's a function-local extern declaration. More...
bool | isLocalExternDecl ()
| Determine whether this is a block-scope declaration with linkage. More...
void | setObjectOfFriendDecl (bool PerformFriendInjection=false)
| Changes the namespace of this declaration to reflect that it's the object of a friend declaration. More...
FriendObjectKind | getFriendObjectKind () const
| Determines whether this declaration is the object of a friend declaration and, if so, what kind. More...
void | setNonMemberOperator ()
| Specifies that this declaration is a C++ overloaded non-member. More...
void | print (raw_ostream &Out, unsigned Indentation=0, bool PrintInstantiation=false) const
void | print (raw_ostream &Out, const PrintingPolicy &Policy, unsigned Indentation=0, bool PrintInstantiation=false) const
void | dump () const
void | dumpColor () const
void | dump (raw_ostream &Out, bool Deserialize=false, ASTDumpOutputFormat OutputFormat=ADOF_Default) const
int64_t | getID () const
const FunctionType * | getFunctionType (bool BlocksToo=true) const
| Looks through the Decl's underlying type to extract a FunctionType when possible. More...
Public Member Functions inherited from clang::DeclContext
| ~DeclContext ()
Decl::Kind | getDeclKind () const
const char * | getDeclKindName () const
DeclContext * | getParent ()
| getParent - Returns the containing DeclContext. More...
const DeclContext * | getParent () const
DeclContext * | getLexicalParent ()
| getLexicalParent - Returns the containing lexical DeclContext. More...
const DeclContext * | getLexicalParent () const
DeclContext * | getLookupParent ()
| Find the parent context of this context that will be used for unqualified name lookup. More...
const DeclContext * | getLookupParent () const
ASTContext & | getParentASTContext () const
bool | isClosure () const
const BlockDecl * | getInnermostBlockDecl () const
| Return this DeclContext if it is a BlockDecl. More...
bool | isObjCContainer () const
bool | isFunctionOrMethod () const
bool | isLookupContext () const
| Test whether the context supports looking up names. More...
bool | isFileContext () const
bool | isTranslationUnit () const
bool | isRecord () const
bool | isNamespace () const
bool | isStdNamespace () const
bool | isInlineNamespace () const
bool | isDependentContext () const
| Determines whether this context is dependent on a template parameter. More...
bool | isTransparentContext () const
| isTransparentContext - Determines whether this context is a "transparent" context, meaning that the members declared in this context are semantically declared in the nearest enclosing non-transparent (opaque) context but are lexically declared in this context. More...
bool | isExternCContext () const
| Determines whether this context or some of its ancestors is a linkage specification context that specifies C linkage. More...
const LinkageSpecDecl * | getExternCContext () const
| Retrieve the nearest enclosing C linkage specification context. More...
bool | isExternCXXContext () const
| Determines whether this context or some of its ancestors is a linkage specification context that specifies C++ linkage. More...
bool | Equals (const DeclContext *DC) const
| Determine whether this declaration context is equivalent to the declaration context DC. More...
bool | Encloses (const DeclContext *DC) const
| Determine whether this declaration context encloses the declaration context DC. More...
Decl * | getNonClosureAncestor ()
| Find the nearest non-closure ancestor of this context, i.e. More...
const Decl * | getNonClosureAncestor () const
DeclContext * | getPrimaryContext ()
| getPrimaryContext - There may be many different declarations of the same entity (including forward declarations of classes, multiple definitions of namespaces, etc.), each with a different set of declarations. More...
const DeclContext * | getPrimaryContext () const
DeclContext * | getRedeclContext ()
| getRedeclContext - Retrieve the context in which an entity conflicts with other entities of the same name, or where it is a redeclaration if the two entities are compatible. More...
const DeclContext * | getRedeclContext () const
DeclContext * | getEnclosingNamespaceContext ()
| Retrieve the nearest enclosing namespace context. More...
const DeclContext * | getEnclosingNamespaceContext () const
RecordDecl * | getOuterLexicalRecordContext ()
| Retrieve the outermost lexically enclosing record context. More...
const RecordDecl * | getOuterLexicalRecordContext () const
bool | InEnclosingNamespaceSetOf (const DeclContext *NS) const
| Test if this context is part of the enclosing namespace set of the context NS, as defined in C++0x [namespace.def]p9. More...
void | collectAllContexts (SmallVectorImpl< DeclContext *> &Contexts)
| Collects all of the declaration contexts that are semantically connected to this declaration context. More...
decl_range | decls () const
| decls_begin/decls_end - Iterate over the declarations stored in this context. More...
decl_iterator | decls_begin () const
decl_iterator | decls_end () const
bool | decls_empty () const
decl_range | noload_decls () const
| noload_decls_begin/end - Iterate over the declarations stored in this context that are currently loaded; don't attempt to retrieve anything from an external source. More...
decl_iterator | noload_decls_begin () const
decl_iterator | noload_decls_end () const
void | addDecl (Decl *D)
| Add the declaration D into this context. More...
void | addDeclInternal (Decl *D)
| Add the declaration D into this context, but suppress searches for external declarations with the same name. More...
void | addHiddenDecl (Decl *D)
| Add the declaration D to this context without modifying any lookup tables. More...
void | removeDecl (Decl *D)
| Removes a declaration from this context. More...
bool | containsDecl (Decl *D) const
| Checks whether a declaration is in this context. More...
bool | containsDeclAndLoad (Decl *D) const
| Checks whether a declaration is in this context. More...
lookup_result | lookup (DeclarationName Name) const
| lookup - Find the declarations (if any) with the given Name in this context. More...
lookup_result | noload_lookup (DeclarationName Name)
| Find the declarations with the given name that are visible within this context; don't attempt to retrieve anything from an external source. More...
void | localUncachedLookup (DeclarationName Name, SmallVectorImpl< NamedDecl *> &Results)
| A simplistic name lookup mechanism that performs name lookup into this declaration context without consulting the external source. More...
void | makeDeclVisibleInContext (NamedDecl *D)
| Makes a declaration visible within this context. More...
lookups_range | lookups () const
lookups_range | noload_lookups (bool PreserveInternalState) const
all_lookups_iterator | lookups_begin () const
| Iterators over all possible lookups within this context. More...
all_lookups_iterator | lookups_end () const
all_lookups_iterator | noload_lookups_begin () const
| Iterators over all possible lookups within this context that are currently loaded; don't attempt to retrieve anything from an external source. More...
all_lookups_iterator | noload_lookups_end () const
udir_range | using_directives () const
| Returns iterator range [First, Last) of UsingDirectiveDecls stored within this context. More...
ddiag_range | ddiags () const
void | setMustBuildLookupTable ()
| Mark that there are external lexical declarations that we need to include in our lookup table (and that are not available as external visible lookups). More...
StoredDeclsMap * | getLookupPtr () const
| Retrieve the internal representation of the lookup structure. More...
StoredDeclsMap * | buildLookup ()
| Ensure the lookup structure is fully-built and return it. More...
bool | hasExternalLexicalStorage () const
| Whether this DeclContext has external storage containing additional declarations that are lexically in this context. More...
void | setHasExternalLexicalStorage (bool ES=true) const
| State whether this DeclContext has external storage for declarations lexically in this context. More...
bool | hasExternalVisibleStorage () const
| Whether this DeclContext has external storage containing additional declarations that are visible in this context. More...
void | setHasExternalVisibleStorage (bool ES=true) const
| State whether this DeclContext has external storage for declarations visible in this context. More...
bool | isDeclInLexicalTraversal (const Decl *D) const
| Determine whether the given declaration is stored in the list of declarations lexically within this context. More...
bool | setUseQualifiedLookup (bool use=true) const
bool | shouldUseQualifiedLookup () const
void | dumpDeclContext () const
void | dumpLookups () const
void | dumpLookups (llvm::raw_ostream &OS, bool DumpDecls=false, bool Deserialize=false) const
Public Member Functions inherited from clang::Redeclarable< FunctionDecl >
| Redeclarable (const ASTContext &Ctx)
FunctionDecl * | getPreviousDecl ()
| Return the previous declaration of this declaration or NULL if this is the first declaration. More...
const FunctionDecl * | getPreviousDecl () const
FunctionDecl * | getFirstDecl ()
| Return the first declaration of this declaration or itself if this is the only declaration. More...
const FunctionDecl * | getFirstDecl () const
| Return the first declaration of this declaration or itself if this is the only declaration. More...
bool | isFirstDecl () const
| True if this is the first declaration in its redeclaration chain. More...
FunctionDecl * | getMostRecentDecl ()
| Returns the most recent (re)declaration of this declaration. More...
const FunctionDecl * | getMostRecentDecl () const
| Returns the most recent (re)declaration of this declaration. More...
void | setPreviousDecl (FunctionDecl *PrevDecl)
| Set the previous declaration. More...
redecl_range | redecls () const
| Returns an iterator range for all the redeclarations of the same decl. More...
redecl_iterator | redecls_begin () const
redecl_iterator | redecls_end () const

## Static Public Member Functions
static FunctionDecl * | Create (ASTContext &C, DeclContext *DC, SourceLocation StartLoc, SourceLocation NLoc, DeclarationName N, QualType T, TypeSourceInfo *TInfo, StorageClass SC, bool isInlineSpecified=false, bool hasWrittenPrototype=true, ConstexprSpecKind ConstexprKind=CSK_unspecified, Expr *TrailingRequiresClause=nullptr)
static FunctionDecl * | Create (ASTContext &C, DeclContext *DC, SourceLocation StartLoc, const DeclarationNameInfo &NameInfo, QualType T, TypeSourceInfo *TInfo, StorageClass SC, bool isInlineSpecified, bool hasWrittenPrototype, ConstexprSpecKind ConstexprKind, Expr *TrailingRequiresClause)
static FunctionDecl * | CreateDeserialized (ASTContext &C, unsigned ID)
static bool | classof (const Decl *D)
static bool | classofKind (Kind K)
static DeclContext * | castToDeclContext (const FunctionDecl *D)
static FunctionDecl * | castFromDeclContext (const DeclContext *DC)
Static Public Member Functions inherited from clang::DeclaratorDecl
static bool | classof (const Decl *D)
static bool | classofKind (Kind K)
Static Public Member Functions inherited from clang::ValueDecl
static bool | classof (const Decl *D)
static bool | classofKind (Kind K)
Static Public Member Functions inherited from clang::NamedDecl
static bool | classof (const Decl *D)
static bool | classofKind (Kind K)
Static Public Member Functions inherited from clang::Decl
static unsigned | getIdentifierNamespaceForKind (Kind DK)
static bool | isTagIdentifierNamespace (unsigned NS)
static void | add (Kind k)
static void | EnableStatistics ()
static void | PrintStats ()
static bool | classofKind (Kind K)
static DeclContext * | castToDeclContext (const Decl *)
static Decl * | castFromDeclContext (const DeclContext *)
static void | printGroup (Decl **Begin, unsigned NumDecls, raw_ostream &Out, const PrintingPolicy &Policy, unsigned Indentation=0)
Static Public Member Functions inherited from clang::DeclContext
static bool | classof (const Decl *D)
static bool | classof (const DeclContext *D)

## Protected Types
using | redeclarable_base = Redeclarable< FunctionDecl >

## Protected Member Functions
| FunctionDecl (Kind DK, ASTContext &C, DeclContext *DC, SourceLocation StartLoc, const DeclarationNameInfo &NameInfo, QualType T, TypeSourceInfo *TInfo, StorageClass S, bool isInlineSpecified, ConstexprSpecKind ConstexprKind, Expr *TrailingRequiresClause=nullptr)
FunctionDecl * | getNextRedeclarationImpl () override
| Returns the next redeclaration or itself if this is the only decl. More...
FunctionDecl * | getPreviousDeclImpl () override
| Implementation of getPreviousDecl(), to be overridden by any subclass that has a redeclaration chain. More...
FunctionDecl * | getMostRecentDeclImpl () override
| Implementation of getMostRecentDecl(), to be overridden by any subclass that has a redeclaration chain. More...
Protected Member Functions inherited from clang::DeclaratorDecl
| DeclaratorDecl (Kind DK, DeclContext *DC, SourceLocation L, DeclarationName N, QualType T, TypeSourceInfo *TInfo, SourceLocation StartL)
Protected Member Functions inherited from clang::ValueDecl
| ValueDecl (Kind DK, DeclContext *DC, SourceLocation L, DeclarationName N, QualType T)
Protected Member Functions inherited from clang::NamedDecl
| NamedDecl (Kind DK, DeclContext *DC, SourceLocation L, DeclarationName N)
Protected Member Functions inherited from clang::Decl
void * | operator new (std::size_t Size, const ASTContext &Ctx, unsigned ID, std::size_t Extra=0)
| Allocate memory for a deserialized declaration. More...
void * | operator new (std::size_t Size, const ASTContext &Ctx, DeclContext *Parent, std::size_t Extra=0)
| Allocate memory for a non-deserialized declaration. More...
| Decl (Kind DK, DeclContext *DC, SourceLocation L)
| Decl (Kind DK, EmptyShell Empty)
virtual | ~Decl ()
void | updateOutOfDate (IdentifierInfo &II) const
| Update a potentially out-of-date declaration. More...
Linkage | getCachedLinkage () const
void | setCachedLinkage (Linkage L) const
bool | hasCachedLinkage () const
void | setModulePrivate ()
| Specify that this declaration was marked as being private to the module in which it was defined. More...
void | setOwningModuleID (unsigned ID)
| Set the owning module ID. More...
bool | hasLocalOwningModuleStorage () const
ASTMutationListener * | getASTMutationListener () const
Protected Member Functions inherited from clang::DeclContext
| DeclContext (Decl::Kind K)
Protected Member Functions inherited from clang::Redeclarable< FunctionDecl >
FunctionDecl * | getNextRedeclaration () const

## Friends
class | ASTDeclReader
class | ASTDeclWriter

## Additional Inherited Members
Static Protected Member Functions inherited from clang::DeclContext
static std::pair< Decl *, Decl * > | BuildDeclChain (ArrayRef< Decl *> Decls, bool FieldsAlreadyLoaded)
| Build up a chain of declarations. More...
Static Protected Member Functions inherited from clang::Redeclarable< FunctionDecl >
static DeclLink | PreviousDeclLink (FunctionDecl *D)
static DeclLink | LatestDeclLink (const ASTContext &Ctx)
Protected Attributes inherited from clang::Decl
llvm::PointerIntPair< Decl *, 2, ModuleOwnershipKind > | NextInContextAndBits
| The next declaration within the same lexical DeclContext. More...
unsigned | Access: 2
| Access - Used by C++ decls for the access specifier. More...
unsigned | FromASTFile: 1
| Whether this declaration was loaded from an AST file. More...
unsigned | IdentifierNamespace: 14
| IdentifierNamespace - This specifies what IDNS_* namespace this lives in. More...
unsigned | CacheValidAndLinkage: 3
| If 0, we have not computed the linkage of this declaration. More...
Protected Attributes inherited from clang::DeclContext
union {
DeclContextBitfields DeclContextBits
TagDeclBitfields TagDeclBits
EnumDeclBitfields EnumDeclBits
RecordDeclBitfields RecordDeclBits
OMPDeclareReductionDeclBitfields OMPDeclareReductionDeclBits
FunctionDeclBitfields FunctionDeclBits
CXXConstructorDeclBitfields CXXConstructorDeclBits
ObjCMethodDeclBitfields ObjCMethodDeclBits
ObjCContainerDeclBitfields ObjCContainerDeclBits
LinkageSpecDeclBitfields LinkageSpecDeclBits
BlockDeclBitfields BlockDeclBits
}; |
| This anonymous union stores the bits belonging to DeclContext and classes deriving from it. More...
Decl * | FirstDecl = nullptr
| FirstDecl - The first declaration stored within this declaration context. More...
Decl * | LastDecl = nullptr
| LastDecl - The last declaration stored within this declaration context. More...
Protected Attributes inherited from clang::Redeclarable< FunctionDecl >
DeclLink | RedeclLink
| Points to the next redeclaration in the chain. More...
FunctionDecl * | First

## Detailed Description

Represents a function declaration or definition.

Since a given function can be declared several times in a program, there may be several FunctionDecls that correspond to that function. Only one of those FunctionDecls will be found when traversing the list of declarations in the context of the FunctionDecl (e.g., the translation unit); this FunctionDecl contains all of the information known about the function. Other, previous declarations of the function are available via the getPreviousDecl() chain.

Definition at line 1783 of file Decl.h.

## Member Typedef Documentation

## ◆ param_const_iterator

using clang::FunctionDecl::param_const_iterator = ArrayRef<ParmVarDecl *>::const_iterator

Definition at line 2408 of file Decl.h.

## ◆ param_iterator

using clang::FunctionDecl::param_iterator = MutableArrayRef<ParmVarDecl *>::iterator

Definition at line 2407 of file Decl.h.

## ◆ redecl_iterator

using clang::FunctionDecl::redecl_iterator = redeclarable_base::redecl_iterator

Definition at line 1945 of file Decl.h.

## ◆ redecl_range

using clang::FunctionDecl::redecl_range = redeclarable_base::redecl_range

Definition at line 1944 of file Decl.h.

## ◆ redeclarable_base

using clang::FunctionDecl::redeclarable_base = Redeclarable<FunctionDecl>
| protected

Definition at line 1926 of file Decl.h.

## Member Enumeration Documentation

## ◆ TemplatedKind

enum clang::FunctionDecl::TemplatedKind

The kind of templated function a FunctionDecl can be.

Enumerator
TK_NonTemplate |
TK_FunctionTemplate |
TK_MemberSpecialization |
TK_FunctionTemplateSpecialization |
TK_DependentFunctionTemplateSpecialization |

Definition at line 1790 of file Decl.h.

## Constructor & Destructor Documentation

## ◆ FunctionDecl()

FunctionDecl::FunctionDecl | ( | Kind | DK,
|  | ASTContext & | C,
|  | DeclContext * | DC,
|  | SourceLocation | StartLoc,
|  | const DeclarationNameInfo & | NameInfo,
|  | QualType | T,
|  | TypeSourceInfo * | TInfo,
|  | StorageClass | S,
|  | bool | isInlineSpecified,
|  | ConstexprSpecKind | ConstexprKind,
|  | Expr * | TrailingRequiresClause = `nullptr`
| ) |  |
| protected

Definition at line 2779 of file Decl.cpp.

## Member Function Documentation

## ◆ castFromDeclContext()

static FunctionDecl* clang::FunctionDecl::castFromDeclContext | ( | const DeclContext * | DC | ) |
| inline static

Definition at line 2723 of file Decl.h.

## ◆ castToDeclContext()

static DeclContext* clang::FunctionDecl::castToDeclContext | ( | const FunctionDecl * | D | ) |
| inline static

Definition at line 2720 of file Decl.h.

## ◆ classof()

static bool clang::FunctionDecl::classof | ( | const Decl * | D | ) |
| inline static

Definition at line 2716 of file Decl.h.

References clang::TranslationUnitDecl::classofKind(), and clang::Decl::getKind().

## ◆ classofKind()

static bool clang::FunctionDecl::classofKind | ( | Kind | K | ) |
| inline static

Definition at line 2717 of file Decl.h.

## ◆ Create() [1/2]

static FunctionDecl* clang::FunctionDecl::Create | ( | ASTContext & | C,
|  | DeclContext * | DC,
|  | SourceLocation | StartLoc,
|  | SourceLocation | NLoc,
|  | DeclarationName | N,
|  | QualType | T,
|  | TypeSourceInfo * | TInfo,
|  | StorageClass | SC,
|  | bool | isInlineSpecified = `false`,
|  | bool | hasWrittenPrototype = `true`,
|  | ConstexprSpecKind | ConstexprKind = `CSK_unspecified`,
|  | Expr * | TrailingRequiresClause = `nullptr`
| ) |  |
| inline static

Definition at line 1955 of file Decl.h.

References clang::C, and clang::TranslationUnitDecl::Create().

Referenced by emitGlobalDtorWithCXAAtExit(), emitOutlinedFunctionPrologue(), clang::CodeGen::CodeGenFunction::GenerateCopyHelperFunction(), clang::CodeGen::CodeGenFunction::GenerateDestroyHelperFunction(), clang::CodeGen::CodeGenFunction::GenerateObjCAtomicGetterCopyHelperFunction(), clang::CodeGen::CodeGenFunction::GenerateObjCAtomicSetterCopyHelperFunction(), getFunctionSourceLocation(), and clang::TemplateDeclInstantiator::VisitFunctionDecl().

## ◆ Create() [2/2]

FunctionDecl * FunctionDecl::Create | ( | ASTContext & | C,
|  | DeclContext * | DC,
|  | SourceLocation | StartLoc,
|  | const DeclarationNameInfo & | NameInfo,
|  | QualType | T,
|  | TypeSourceInfo * | TInfo,
|  | StorageClass | SC,
|  | bool | isInlineSpecified,
|  | bool | hasWrittenPrototype,
|  | ConstexprSpecKind | ConstexprKind,
|  | Expr * | TrailingRequiresClause
| ) |  |
| static

Definition at line 4702 of file Decl.cpp.

References clang::C, clang::XRayInstrKind::Function, and setHasWrittenPrototype().

## ◆ CreateDeserialized()

FunctionDecl * FunctionDecl::CreateDeserialized | ( | ASTContext & | C,
|  | unsigned | ID
| ) |  |
| static

Definition at line 4718 of file Decl.cpp.

References clang::C, clang::CSK_unspecified, clang::XRayInstrKind::Function, and clang::SC_None.

## ◆ doesDeclarationForceExternallyVisibleDefinition()

bool FunctionDecl::doesDeclarationForceExternallyVisibleDefinition | ( |  | ) | const

For a function declaration in C or C++, determine whether this declaration causes the definition to be externally visible.

For instance, this determines if adding the current declaration to the set of redeclarations of the given functions causes isInlineDefinitionExternallyVisible to change from false to true.

Definition at line 3329 of file Decl.cpp.

References doesThisDeclarationHaveABody().

Referenced by clang::CodeGen::CodeGenModule::EmitGlobal().

## ◆ doesThisDeclarationHaveABody()

bool clang::FunctionDecl::doesThisDeclarationHaveABody | ( |  | ) | const
| inline

Returns whether this specific declaration of the function has a body.

Definition at line 2078 of file Decl.h.

References clang::DeclContext::FunctionDeclBits.

Referenced by clang::ASTRecordWriter::AddFunctionDefinition(), CheckAbstractClassUsage(), clang::Sema::DefineDefaultedComparison(), clang::Sema::DefineImplicitCopyAssignment(), clang::Sema::DefineImplicitCopyConstructor(), clang::Sema::DefineImplicitDefaultConstructor(), clang::Sema::DefineImplicitDestructor(), clang::Sema::DefineImplicitMoveAssignment(), clang::Sema::DefineImplicitMoveConstructor(), clang::Sema::DefineInheritingConstructor(), doesDeclarationForceExternallyVisibleDefinition(), clang::CodeGen::CodeGenModule::EmitGlobal(), clang::CXXMethodDecl::hasInlineBody(), IsDisallowedCopyOrAssign(), isInlineDefinitionExternallyVisible(), and clang::ASTNodeTraverser< ASTDumper, TextNodeDumper >::VisitFunctionDecl().

## ◆ getAssociatedConstraints()

void clang::FunctionDecl::getAssociatedConstraints | ( | SmallVectorImpl< const Expr *> & | AC | ) | const
| inline

Get the associated-constraints of this function declaration.

Currently, this will either be a vector of size 1 containing the trailing-requires-clause or an empty vector.

Use this instead of getTrailingRequiresClause for concepts APIs that accept an ArrayRef of constraint expressions.

Definition at line 2384 of file Decl.h.

References clang::Decl::getCanonicalDecl().

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

## ◆ getBody() [1/2]

Stmt * FunctionDecl::getBody | ( | const FunctionDecl *& | Definition | ) | const

Retrieve the body (definition) of the function.

The function body might be in any of the (re-)declarations of this function. The variant that accepts a FunctionDecl pointer will set that function declaration to the actual declaration containing the body (if there is one). NOTE: For checking if there is a body, use hasBody() instead, to avoid unnecessary AST de-serialization of the body.

Definition at line 2894 of file Decl.cpp.

References Body, clang::DeclContext::FunctionDeclBits, clang::LazyOffsetPtr< T, OffsT, Get >::get(), clang::Decl::getASTContext(), and hasBody().

Referenced by clang::ODRHash::AddFunctionDecl(), clang::ASTRecordWriter::AddFunctionDefinition(), clang::Sema::CheckConstexprFunctionDefinition(), ComputeDefaultedComparisonExceptionSpec(), clang::CodeGen::CodeGenFunction::EmitConstructorBody(), clang::CodeGen::CodeGenFunction::emitImplicitAssignmentOperatorBody(), endsWithReturn(), clang::for(), clang::CodeGen::CodeGenFunction::GenerateCode(), getMethodBody(), HandleConstructorCall(), HandleDestructionImpl(), clang::ento::ModelConsumer::HandleTopLevelDecl(), clang::ASTNodeImporter::ImportFunctionDeclBody(), clang::Sema::InstantiateFunctionDefinition(), isReleased(), clang::Sema::MarkFunctionReferenced(), clang::CodeGen::CodeGenFunction::StartFunction(), clang::interp::ByteCodeStmtGen< Emitter >::visitFunc(), and clang::ASTNodeTraverser< ASTDumper, TextNodeDumper >::VisitFunctionDecl().

## ◆ getBody() [2/2]

Stmt* clang::FunctionDecl::getBody | ( |  | ) | const
| inline override virtual

getBody - If this Decl represents a declaration for a body of code, such as a function or method definition, this method returns the top-level Stmt* of that body.

Otherwise this method returns null.

Reimplemented from clang::Decl.

Definition at line 2057 of file Decl.h.

References clang::Decl::getBody().

## ◆ getBuiltinID()

unsigned FunctionDecl::getBuiltinID | ( | bool | ConsiderWrapperFunctions = `false` | ) | const

Returns a value indicating whether this function corresponds to a builtin function.

The function corresponds to a built-in function if it is declared at translation scope or within an extern "C" block and its name matches with the name of a builtin. The returned value will be 0 for functions that do not correspond to a builtin, a value of type `Builtin::ID` if in the target-independent range ``[1,Builtin::First), or a target-specific builtin value.

Parameters

  ConsiderWrapperFunctions | If true, we should consider wrapper functions as their wrapped builtins. This shouldn't be done in general, but it's useful in Sema to diagnose calls to wrappers based on their semantics.

Definition at line 3173 of file Decl.cpp.

References clang::IdentifierInfo::getBuiltinID(), and clang::NamedDecl::getIdentifier().

Referenced by clang::Sema::ActOnStartOfFunctionDef(), clang::Sema::AddKnownFunctionAttributes(), clang::Sema::BuildResolvedCallExpr(), clang::ASTContext::canBuiltinBeRedeclared(), clang::Sema::CheckEquivalentExceptionSpec(), checkFormatStringExpr(), checkOpenCLPipeArg(), clang::CodeGen::CodeGenFunction::checkTargetFeatures(), clang::Sema::ConvertArgumentsForCall(), clang::CodeGen::CodeGenFunction::EmitBranchOnBoolExpr(), EmitDirectCallee(), clang::CodeGen::CGDebugInfo::EmitFuncDeclForCallSite(), emitReplacement(), getAbsoluteValueFunctionKind(), clang::CallExpr::getBuiltinCallee(), getMemoryFunctionKind(), clang::CallExpr::isBuiltinAssumeFalse(), isInlineBuiltinDeclaration(), and clang::Sema::UseArgumentDependentLookup().

## ◆ getCallResultType()

QualType clang::FunctionDecl::getCallResultType | ( |  | ) | const
| inline

Determine the type of an expression that calls this function.

Definition at line 2481 of file Decl.h.

References clang::Type::castAs(), and clang::TranslationUnitDecl::getASTContext().

Referenced by clang::consumed::ConsumedStateMap::operator!=(), clang::consumed::ConsumedAnalyzer::run(), and TryUserDefinedConversion().

## ◆ getCanonicalDecl() [1/2]

FunctionDecl * FunctionDecl::getCanonicalDecl | ( |  | ) |
| override virtual

Retrieves the "canonical" declaration of the given declaration.

Reimplemented from clang::Decl.

Reimplemented in clang::CXXConversionDecl, clang::CXXDestructorDecl, clang::CXXConstructorDecl, and clang::CXXMethodDecl.

Definition at line 3158 of file Decl.cpp.

References clang::Redeclarable< FunctionDecl >::getFirstDecl().

Referenced by checkRecursiveFunction(), clang::CXXMethodDecl::getCanonicalDecl(), clang::CXXConstructorDecl::getCanonicalDecl(), clang::CXXDestructorDecl::getCanonicalDecl(), clang::CXXConversionDecl::getCanonicalDecl(), clang::Sema::getEmissionStatus(), clang::FieldDecl::getFieldIndex(), isGlobal(), isInstantiationOf(), clang::FunctionProtoType::isTemplateVariadic(), clang::Sema::MarkFunctionReferenced(), clang::Sema::SetDeclDeleted(), and clang::TemplateDeclInstantiator::VisitFunctionDecl().

## ◆ getCanonicalDecl() [2/2]

const FunctionDecl* clang::FunctionDecl::getCanonicalDecl | ( |  | ) | const
| inline

Definition at line 2392 of file Decl.h.

References clang::Decl::getCanonicalDecl().

## ◆ getConstexprKind()

ConstexprSpecKind clang::FunctionDecl::getConstexprKind | ( |  | ) | const
| inline

Definition at line 2206 of file Decl.h.

References clang::DeclContext::FunctionDeclBits.

Referenced by CheckConstexprDestructorSubobjects(), clang::TemplateDeclInstantiator::VisitCXXMethodDecl(), clang::ASTDeclWriter::VisitFunctionDecl(), and clang::TemplateDeclInstantiator::VisitFunctionDecl().

## ◆ getDeclaredReturnType()

QualType clang::FunctionDecl::getDeclaredReturnType | ( |  | ) | const
| inline

Get the declared return type, which may differ from the actual return type if the return type is deduced.

Definition at line 2462 of file Decl.h.

References clang::Type::castAs().

## ◆ getDefaultedFunctionInfo()

FunctionDecl::DefaultedFunctionInfo * FunctionDecl::getDefaultedFunctionInfo | ( |  | ) | const

Definition at line 2855 of file Decl.cpp.

References DefaultedInfo, and clang::DeclContext::FunctionDeclBits.

Referenced by clang::TemplateDeclInstantiator::SubstDefaultedFunction(), and clang::ASTDeclWriter::VisitFunctionDecl().

## ◆ getDefinition() [1/2]

FunctionDecl* clang::FunctionDecl::getDefinition | ( |  | ) |
| inline

Get the definition for this declaration.

Definition at line 2039 of file Decl.h.

Referenced by clang::Sema::getEmissionStatus(), clang::interp::Program::getFunction(), getMethodBody(), clang::interp::Program::getOrCreateFunction(), and clang::Sema::InstantiateFunctionDefinition().

## ◆ getDefinition() [2/2]

const FunctionDecl* clang::FunctionDecl::getDefinition | ( |  | ) | const
| inline

Definition at line 2045 of file Decl.h.

References clang::Decl::getBody(), and getDefinition().

## ◆ getDependentSpecializationInfo()

DependentFunctionTemplateSpecializationInfo * FunctionDecl::getDependentSpecializationInfo | ( |  | ) | const

Definition at line 3725 of file Decl.cpp.

Referenced by clang::Sema::CheckOverload(), clang::ASTNodeImporter::ImportTemplateInformation(), clang::TemplateDeclInstantiator::VisitCXXMethodDecl(), clang::ASTDeclWriter::VisitFunctionDecl(), and clang::TemplateDeclInstantiator::VisitFunctionDecl().

## ◆ getDescribedFunctionTemplate()

FunctionTemplateDecl * FunctionDecl::getDescribedFunctionTemplate | ( |  | ) | const

Retrieves the function template that is described by this function declaration.

Every function template is represented as a FunctionTemplateDecl and a FunctionDecl (or something derived from FunctionDecl). The former contains template properties (such as the template parameter lists) while the latter contains the actual description of the template's contents. FunctionTemplateDecl::getTemplatedDecl() retrieves the FunctionDecl that describes the function template, getDescribedFunctionTemplate() retrieves the FunctionTemplateDecl from a FunctionDecl.

Definition at line 3561 of file Decl.cpp.

Referenced by clang::Sema::AddOverloadCandidate(), clang::Sema::BuildLambdaExpr(), clang::Sema::CheckForFunctionRedefinition(), clang::Sema::CheckLiteralOperatorDeclaration(), clang::Sema::CheckMSVCRTEntryPoint(), CheckOperatorNewDeleteTypes(), clang::Sema::CheckOverload(), clang::Sema::DeduceReturnType(), clang::Sema::DefineImplicitLambdaToFunctionPointerConversion(), clang::CodeGen::CodeGenFunction::EmitLambdaDelegatingInvokeBody(), clang::CXXRecordDecl::getGenericLambdaTemplateParameterList(), clang::Sema::IsOverload(), printExplicitSpecifier(), setPreviousDeclaration(), ShouldWarnAboutMissingPrototype(), clang::TemplateDeclInstantiator::VisitCXXMethodDecl(), clang::ASTDeclWriter::VisitFunctionDecl(), and clang::TemplateDeclInstantiator::VisitFunctionDecl().

## ◆ getEllipsisLoc()

SourceLocation clang::FunctionDecl::getEllipsisLoc | ( |  | ) | const
| inline

Returns the location of the ellipsis of a variadic function.

Definition at line 1987 of file Decl.h.

References clang::FunctionProtoType::getEllipsisLoc(), clang::Decl::getSourceRange(), and clang::Decl::hasBody().

Referenced by getParametersSourceRange().

## ◆ getExceptionSpecSourceRange()

SourceRange FunctionDecl::getExceptionSpecSourceRange | ( |  | ) | const

Attempt to compute an informative source range covering the function exception specification, if any.

Definition at line 3427 of file Decl.cpp.

References clang::FunctionTypeLoc::getExceptionSpecRange(), and getFunctionTypeLoc().

Referenced by EmitDiagForCXXThrowInNonThrowingFunc().

## ◆ getExceptionSpecType()

ExceptionSpecificationType clang::FunctionDecl::getExceptionSpecType | ( |  | ) | const
| inline

Gets the ExceptionSpecificationType as declared.

Definition at line 2469 of file Decl.h.

References clang::EST_None, clang::Type::getAs(), and clang::FunctionProtoType::getExceptionSpecType().

## ◆ getFunctionTypeLoc()

FunctionTypeLoc FunctionDecl::getFunctionTypeLoc | ( |  | ) | const

Find the source location information for how the type of this function was written.

May be absent (for example if the function was declared via a typedef) and may contain a different type from that of the function (for example if the function type was adjusted by an attribute).

Definition at line 3389 of file Decl.cpp.

References clang::TypeLoc::getAs(), clang::TypeSourceInfo::getTypeLoc(), clang::DeclaratorDecl::getTypeSourceInfo(), and clang::TypeLoc::IgnoreParens().

Referenced by getExceptionSpecSourceRange(), and getReturnTypeSourceRange().

## ◆ getInstantiatedFromMemberFunction()

FunctionDecl * FunctionDecl::getInstantiatedFromMemberFunction | ( |  | ) | const

If this function is an instantiation of a member function of a class template specialization, retrieves the function from which it was instantiated.

This routine will return non-NULL for (non-templated) member functions of class templates and for instantiations of function templates. For example, given:

template<typename T>
struct X {
void f(T);
};

The declaration for X<int>::f is a (non-templated) FunctionDecl whose parent is the class template specialization X<int>. For this declaration, getInstantiatedFromFunction() will return the FunctionDecl X<T>::A. When a complete definition of X<int>::A is required, it will be instantiated from the declaration returned by getInstantiatedFromMemberFunction().

Definition at line 3533 of file Decl.cpp.

References getMemberSpecializationInfo().

Referenced by adjustDeclToTemplate(), clang::Sema::CheckForFunctionRedefinition(), getExplicitVisibilityAux(), getODRHash(), hasExplicitMemberDefinition(), clang::ASTNodeImporter::ImportTemplateInformation(), clang::Sema::InstantiateFunctionDefinition(), isInstantiationOf(), and isOutOfLine().

## ◆ getLanguageLinkage()

LanguageLinkage FunctionDecl::getLanguageLinkage | ( |  | ) | const

Compute the language linkage.

Definition at line 3071 of file Decl.cpp.

References getDeclLanguageLinkage().

## ◆ getLiteralIdentifier()

const IdentifierInfo * FunctionDecl::getLiteralIdentifier | ( |  | ) | const

getLiteralIdentifier - The literal suffix identifier this function represents, if any.

Definition at line 3510 of file Decl.cpp.

References clang::DeclarationName::CXXLiteralOperatorName, clang::DeclarationName::getCXXLiteralIdentifier(), and clang::NamedDecl::getDeclName().

## ◆ getMemberSpecializationInfo()

MemberSpecializationInfo * FunctionDecl::getMemberSpecializationInfo | ( |  | ) | const

If this function is an instantiation of a member function of a class template specialization, retrieves the member specialization information.

Definition at line 3540 of file Decl.cpp.

References clang::C.

Referenced by getInstantiatedFromMemberFunction(), getTemplateInstantiationPattern(), clang::ASTNodeImporter::ImportTemplateInformation(), clang::Sema::MarkFunctionReferenced(), clang::ASTDeclWriter::VisitFunctionDecl(), clang::ASTDeclReader::VisitFunctionDecl(), and clang::TemplateDeclInstantiator::VisitFunctionDecl().

## ◆ getMemoryFunctionKind()

unsigned FunctionDecl::getMemoryFunctionKind | ( |  | ) | const

Identify a memory copying or setting function.

If the given function is a memory copy or setting function, returns the corresponding Builtin ID. If the function is not a memory function, returns 0.

Definition at line 3872 of file Decl.cpp.

References getBuiltinID(), clang::NamedDecl::getIdentifier(), isExternC(), and clang::IdentifierInfo::isStr().

Referenced by getStrlenExprArg().

## ◆ getMinRequiredArguments()

unsigned FunctionDecl::getMinRequiredArguments | ( |  | ) | const

Returns the minimum number of arguments needed to call this function.

getMinRequiredArguments - Returns the minimum number of arguments needed to call this function.

This may be fewer than the number of function parameters, if some of the parameters have default arguments (in C++).

This may be fewer than the number of function parameters, if some of the parameters have default arguments (in C++) or are parameter packs (C++11).

Definition at line 3263 of file Decl.cpp.

References clang::CPlusPlus, clang::Decl::getASTContext(), getNumParams(), and parameters().

Referenced by checkDirectCallValidity(), compareOverloads(), clang::Sema::DeduceTemplateArguments(), and clang::FunctionCallFilterCCC::ValidateCandidate().

## ◆ getMostRecentDeclImpl()

FunctionDecl* clang::FunctionDecl::getMostRecentDeclImpl | ( |  | ) |
| inline override protected virtual

Implementation of getMostRecentDecl(), to be overridden by any subclass that has a redeclaration chain.

Reimplemented from clang::Decl.

Definition at line 1936 of file Decl.h.

References clang::Decl::getMostRecentDecl().

## ◆ getMultiVersionKind()

MultiVersionKind FunctionDecl::getMultiVersionKind | ( |  | ) | const

Gets the kind of multiversioning attribute this declaration has.

Note that this can return a value even if the function is not multiversion, such as the case of 'target'.

Definition at line 3121 of file Decl.cpp.

References clang::CPUDispatch, clang::CPUSpecific, clang::None, and clang::Target.

Referenced by PreviousDeclsHaveMultiVersionAttribute().

## ◆ getNameForDiagnostic()

void FunctionDecl::getNameForDiagnostic | ( | raw_ostream & | OS,
|  | const PrintingPolicy & | Policy,
|  | bool | Qualified
| ) |  | const
| override virtual

Appends a human-readable name for this declaration into the given stream.

This is the method invoked by Sema when displaying a NamedDecl in a diagnostic. It does not necessarily produce the same result as printName(); for example, class template specializations are printed with their template arguments.

Reimplemented from clang::NamedDecl.

Definition at line 2819 of file Decl.cpp.

References clang::TemplateArgumentList::asArray(), clang::NamedDecl::getNameForDiagnostic(), getTemplateSpecializationArgs(), and clang::printTemplateArgumentList().

## ◆ getNameInfo()

DeclarationNameInfo clang::FunctionDecl::getNameInfo | ( |  | ) | const
| inline

Definition at line 1977 of file Decl.h.

References clang::Decl::getLocation().

Referenced by clang::for(), getReturnTypeSourceRange(), printExplicitSpecifier(), SemaOpenCLBuiltinToAddr(), clang::TemplateDeclInstantiator::VisitCXXMethodDecl(), and clang::TemplateDeclInstantiator::VisitFunctionDecl().

## ◆ getNextRedeclarationImpl()

FunctionDecl* clang::FunctionDecl::getNextRedeclarationImpl | ( |  | ) |
| inline override protected virtual

Returns the next redeclaration or itself if this is the only decl.

Decl subclasses that can be redeclared should override this method so that Decl::redecl_iterator can iterate over them.

Reimplemented from clang::Decl.

Definition at line 1928 of file Decl.h.

## ◆ getNumParams()

unsigned FunctionDecl::getNumParams | ( |  | ) | const

Return the number of parameters this function must have based on its FunctionType.

getNumParams - Return the number of parameters this function must have based on its FunctionType.

This is the length of the ParamInfo array after it has been created.

Definition at line 3242 of file Decl.cpp.

References clang::C, clang::Type::getAs(), clang::FunctionProtoType::getNumParams(), and clang::ValueDecl::getType().

Referenced by AddFunctionParameterChunks(), clang::Sema::addLambdaParameters(), AuditedType(), clang::Sema::CheckConstructor(), clang::Sema::CheckCXXDefaultArguments(), checkDirectCallValidity(), clang::Sema::CheckExplicitlyDefaultedSpecialMember(), CheckOperatorNewDeleteTypes(), clang::Sema::CheckOverloadedOperatorDeclaration(), compareOverloads(), convertArgsForAvailabilityChecks(), CopyObject(), decomposeTypeForEH(), clang::Sema::DeduceTemplateArguments(), clang::CodeGen::CodeGenFunction::EmitInheritedCXXConstructorCall(), emitReplacement(), evaluateCDTSize(), functionDeclHasDefaultArgument(), clang::CodeGen::CodeGenModule::GenOpenCLArgMetadata(), getFuchsiaHandleSymbol(), getMinRequiredArguments(), getNDSWDS(), clang::OverloadCandidate::getNumParams(), getParametersSourceRange(), GetSignature(), hasCopyOrMoveCtorParam(), hasDefaultCXXMethodCC(), hasIdenticalPassObjectSizeAttrs(), isDestroyingOperatorDelete(), clang::ento::iterator::isEmplaceCall(), clang::Sema::isEmptyCudaConstructor(), clang::ento::iterator::isEraseAfterCall(), clang::ento::iterator::isEraseCall(), clang::Sema::isInitListConstructor(), clang::ento::iterator::isInsertCall(), isNonPlacementDeallocationFunction(), isTypeSubstitutable(), clang::Sema::isUsualDeallocationFunction(), isVariadicFunctionTemplate(), clang::Sema::MarkDeducedTemplateParameters(), clang::Sema::PerformCopyInitialization(), llvm::FoldingSetTrait< AllocKind >::Profile(), clang::OverloadCandidateSet::OperatorRewriteInfo::shouldAddReversed(), shouldTrackFirstArgument(), clang::FunctionCallFilterCCC::ValidateCandidate(), clang::TextNodeDumper::VisitFunctionDecl(), and visitLifetimeBoundArguments().

## ◆ getODRHash() [1/2]

unsigned FunctionDecl::getODRHash | ( |  | ) |

Returns ODRHash of the function.

This value is calculated and stored on first call, then the stored value returned on the other calls.

Definition at line 3985 of file Decl.cpp.

References clang::ODRHash::AddFunctionDecl(), clang::ODRHash::CalculateHash(), and getInstantiatedFromMemberFunction().

Referenced by clang::ASTDeclWriter::VisitFunctionDecl().

## ◆ getODRHash() [2/2]

unsigned FunctionDecl::getODRHash | ( |  | ) | const

Returns cached ODRHash of the function.

This must have been previously computed and stored.

Definition at line 3980 of file Decl.cpp.

## ◆ getOverloadedOperator()

OverloadedOperatorKind FunctionDecl::getOverloadedOperator | ( |  | ) | const

getOverloadedOperator - Which C++ overloaded operator this function represents, if any.

Definition at line 3501 of file Decl.cpp.

References clang::DeclarationName::CXXOperatorName, clang::DeclarationName::getCXXOverloadedOperator(), clang::NamedDecl::getDeclName(), and clang::OO_None.

Referenced by clang::Sema::CheckExplicitlyDefaultedComparison(), clang::Sema::CheckOverloadedOperatorDeclaration(), clang::Sema::DefineImplicitCopyAssignment(), clang::Sema::DefineImplicitMoveAssignment(), DiagnoseShiftCompare(), clang::CodeGen::CodeGenFunction::EmitDeleteCall(), findImplicitlyDeclaredEqualityComparisons(), getAllocationFamily(), isDestroyingOperatorDelete(), clang::isLambdaCallOperator(), isNonPlacementDeallocationFunction(), printAllocDeallocName(), shouldTrackImplicitObjectArg(), and clang::CodeGen::CodeGenFunction::StartFunction().

## ◆ getParamDecl() [1/2]

const ParmVarDecl* clang::FunctionDecl::getParamDecl | ( | unsigned | i | ) | const
| inline

Definition at line 2422 of file Decl.h.

Referenced by clang::Sema::ActOnCXXDelete(), AddFunctionParameterChunks(), clang::Sema::addLambdaParameters(), BuildImplicitBaseInitializer(), BuildImplicitMemberInitializer(), checkBuiltinArgument(), CheckConstexprParameterTypes(), clang::Sema::CheckConstructor(), clang::Sema::CheckCXXDefaultArguments(), clang::Sema::CheckLiteralOperatorDeclaration(), CheckOperatorNewDeclaration(), CheckOperatorNewDeleteTypes(), clang::Sema::CheckOverloadedOperatorDeclaration(), clang::Sema::CheckOverridingFunctionAttributes(), convertArgsForAvailabilityChecks(), CopyObject(), create_call_once(), create_dispatch_once(), create_dispatch_sync(), create_OSAtomicCompareAndSwap(), clang::Sema::DeduceTemplateArguments(), clang::Sema::DefineImplicitCopyAssignment(), clang::Sema::DefineImplicitMoveAssignment(), describeUninitializedArgumentInCall(), clang::CodeGen::CodeGenFunction::EmitCXXConstructorCall(), emitReplacement(), evaluateCDTSize(), functionDeclHasDefaultArgument(), clang::Sema::GatherArgumentsForCall(), clang::CodeGen::CodeGenModule::GenOpenCLArgMetadata(), getFuchsiaHandleSymbol(), getNDSWDS(), GetSignature(), HandleConstructorCall(), hasCopyOrMoveCtorParam(), isDestroyingOperatorDelete(), clang::ento::iterator::isEmplaceCall(), clang::ento::iterator::isEraseAfterCall(), clang::ento::iterator::isEraseCall(), clang::Sema::isInitListConstructor(), clang::ento::iterator::isInsertCall(), isNonPlacementDeallocationFunction(), isTypeSubstitutable(), isVariadicFunctionTemplate(), clang::Sema::MarkDeducedTemplateParameters(), clang::Sema::PerformCopyInitialization(), clang::Sema::PerformImplicitConversion(), resolveBuiltinNewDeleteOverload(), clang::OverloadCandidateSet::OperatorRewriteInfo::shouldAddReversed(), shouldTrackFirstArgument(), clang::Sema::SpecialMemberIsTrivial(), and visitLifetimeBoundArguments().

## ◆ getParamDecl() [2/2]

ParmVarDecl* clang::FunctionDecl::getParamDecl | ( | unsigned | i | ) |
| inline

Definition at line 2426 of file Decl.h.

## ◆ getParametersSourceRange()

SourceRange FunctionDecl::getParametersSourceRange | ( |  | ) | const

Attempt to compute an informative source range covering the function parameters, including the ellipsis of a variadic function.

The source range excludes the parentheses, and is invalid if there are no parameters and no ellipsis.

Definition at line 3411 of file Decl.cpp.

References Begin, End, clang::SourceRange::getBegin(), getEllipsisLoc(), clang::SourceRange::getEnd(), getNumParams(), clang::ParmVarDecl::getSourceRange(), clang::SourceLocation::isInvalid(), and clang::SourceLocation::isValid().

## ◆ getPointOfInstantiation()

SourceLocation FunctionDecl::getPointOfInstantiation | ( |  | ) | const

Retrieve the (first) point of instantiation of a function template specialization or a member of a class template specialization.

Returns
  the first point of instantiation, if this function was instantiated from a template; otherwise, returns an invalid source location.

Definition at line 3833 of file Decl.cpp.

Referenced by clang::Sema::CheckInstantiatedFunctionTemplateConstraints(), and clang::Sema::MarkFunctionReferenced().

## ◆ getPreviousDeclImpl()

FunctionDecl* clang::FunctionDecl::getPreviousDeclImpl | ( |  | ) |
| inline override protected virtual

Implementation of getPreviousDecl(), to be overridden by any subclass that has a redeclaration chain.

Reimplemented from clang::Decl.

Definition at line 1932 of file Decl.h.

References clang::Decl::getPreviousDecl().

## ◆ getPrimaryTemplate()

FunctionTemplateDecl * FunctionDecl::getPrimaryTemplate | ( |  | ) | const

Retrieve the primary template that this function template specialization either specializes or was instantiated from.

If this function declaration is not a function template specialization, returns NULL.

Definition at line 3653 of file Decl.cpp.

Referenced by clang::Sema::CheckInstantiatedFunctionTemplateConstraints(), clang::Sema::CheckLiteralOperatorDeclaration(), getTemplateInstantiationPattern(), isOutOfLine(), and isTemplate().

## ◆ getReturnType()

QualType clang::FunctionDecl::getReturnType | ( |  | ) | const
| inline

Definition at line 2445 of file Decl.h.

References clang::Type::castAs().

Referenced by clang::Sema::ActOnFinishFunctionBody(), clang::ODRHash::AddFunctionDecl(), AuditedType(), clang::CodeGen::CodeGenFunction::BuildFunctionArgList(), clang::Sema::buildLambdaScope(), CheckConstexprFunctionBody(), CheckConstexprReturnType(), clang::interp::ByteCodeEmitter::compileFunc(), completeFunctionType(), create_OSAtomicCompareAndSwap(), clang::Sema::DeduceReturnType(), clang::Sema::DeduceTemplateArguments(), clang::Sema::DefineImplicitLambdaToFunctionPointerConversion(), DiagnoseConstAssignment(), dumpMicrosoftThunkAdjustment(), evaluateCDTSize(), clang::comments::DeclInfo::fill(), clang::CodeGen::CodeGenFunction::GenerateCode(), getFuchsiaHandleSymbol(), getNDSWDS(), GetSignature(), GetTypeOfFunction(), HandleFunctionCall(), handleGslAnnotatedTypes(), HandleVirtualDispatch(), noteMemberDeclaredHere(), notePlausibleOverloads(), resolveBuiltinNewDeleteOverload(), shouldTrackFirstArgument(), shouldTrackImplicitObjectArg(), TryRefInitWithConversionFunction(), TryUserDefinedConversion(), and clang::interp::ByteCodeStmtGen< Emitter >::visitFunc().

## ◆ getReturnTypeSourceRange()

SourceRange FunctionDecl::getReturnTypeSourceRange | ( |  | ) | const

Attempt to compute an informative source range covering the function return type.

This may omit qualifiers and other information with limited representation in the AST.

Definition at line 3395 of file Decl.cpp.

References clang::Decl::getASTContext(), clang::DeclarationNameInfo::getBeginLoc(), clang::SourceRange::getEnd(), getFunctionTypeLoc(), getNameInfo(), clang::FunctionTypeLoc::getReturnLoc(), clang::ASTContext::getSourceManager(), clang::TypeLoc::getSourceRange(), clang::SourceManager::isBeforeInTranslationUnit(), clang::SourceLocation::isInvalid(), clang::SourceRange::isInvalid(), and SM.

Referenced by DiagnoseConstAssignment().

## ◆ getSourceRange()

SourceRange FunctionDecl::getSourceRange | ( |  | ) | const
| override virtual

Source range that this declaration covers.

Reimplemented from clang::DeclaratorDecl.

Definition at line 3868 of file Decl.cpp.

References clang::DeclaratorDecl::getOuterLocStart().

Referenced by checkDirectCallValidity(), clang::Sema::CheckExplicitlyDefaultedSpecialMember(), clang::Decl::getBodyRBrace(), clang::Sema::MaybeSuggestAddingStaticToDecl(), resolveBuiltinNewDeleteOverload(), and clang::TemplateDeclInstantiator::VisitFunctionDecl().

## ◆ getStorageClass()

StorageClass clang::FunctionDecl::getStorageClass | ( |  | ) | const
| inline

Returns the storage class as written in the source.

For the computed linkage of symbol, see getLinkage.

Definition at line 2488 of file Decl.h.

References clang::DeclContext::FunctionDeclBits.

Referenced by clang::ODRHash::AddFunctionDecl(), canRedefineFunction(), clang::Sema::CheckForFunctionRedefinition(), clang::Sema::CheckMain(), CheckOperatorNewDeleteDeclarationScope(), clang::Sema::CheckOverridingFunctionAttributes(), getFunctionSourceLocation(), isGlobal(), clang::CXXMethodDecl::isStatic(), printExplicitSpecifier(), RedeclForcesDefC99(), redeclForcesDefMSVC(), clang::ASTDeclWriter::VisitFunctionDecl(), clang::JSONNodeDumper::VisitFunctionDecl(), clang::TextNodeDumper::VisitFunctionDecl(), and clang::TemplateDeclInstantiator::VisitFunctionDecl().

## ◆ getTemplatedKind()

FunctionDecl::TemplatedKind FunctionDecl::getTemplatedKind | ( |  | ) | const

What kind of templated function this is.

Definition at line 3517 of file Decl.cpp.

References TK_DependentFunctionTemplateSpecialization, TK_FunctionTemplate, TK_FunctionTemplateSpecialization, TK_MemberSpecialization, and TK_NonTemplate.

Referenced by checkRecursiveFunction(), clang::ASTNodeImporter::ImportFunctionTemplateWithTemplateArgsFromSpecialization(), clang::ASTNodeImporter::ImportTemplateInformation(), clang::Sema::IsInsideALocalClassWithinATemplateFunction(), and clang::ASTDeclWriter::VisitFunctionDecl().

## ◆ getTemplateInstantiationPattern()

FunctionDecl * FunctionDecl::getTemplateInstantiationPattern | ( |  | ) | const

Retrieve the function declaration from which this function could be instantiated, if it is an instantiation (rather than a non-template or a specialization, for example).

Definition at line 3612 of file Decl.cpp.

References getDefinitionOrSelf(), getMemberSpecializationInfo(), getPrimaryTemplate(), getTemplateSpecializationKind(), clang::isGenericLambdaCallOperatorSpecialization(), and clang::isTemplateInstantiation().

Referenced by clang::CodeGen::CodeGenFunction::GenerateCode(), getDefiningModule(), GetSignature(), clang::Sema::InstantiateFunctionDefinition(), isImplicitlyInstantiable(), and clang::CodeGen::CodeGenModule::SetLLVMFunctionAttributesForDefinition().

## ◆ getTemplateSpecializationArgs()

const TemplateArgumentList * FunctionDecl::getTemplateSpecializationArgs | ( |  | ) | const

Retrieve the template arguments used to produce this function template specialization from the primary template.

If this function declaration is not a function template specialization, returns NULL.

Definition at line 3669 of file Decl.cpp.

Referenced by clang::ODRHash::AddFunctionDecl(), addInstanceOfTransition(), clang::Sema::CheckInstantiatedFunctionTemplateConstraints(), clang::Sema::DeduceReturnType(), clang::Sema::DefineImplicitLambdaToFunctionPointerConversion(), clang::CodeGen::CodeGenFunction::EmitLambdaDelegatingInvokeBody(), evalZeroParamNullReturn(), getNameForDiagnostic(), and isTemplate().

## ◆ getTemplateSpecializationArgsAsWritten()

const ASTTemplateArgumentListInfo * FunctionDecl::getTemplateSpecializationArgsAsWritten | ( |  | ) | const

Retrieve the template argument list as written in the sources, if any.

If this function declaration is not a function template specialization or if it had no explicit template argument list, returns NULL. Note that it an explicit template argument list may be written empty, e.g., template<> void foo<>(char* s);

Definition at line 3679 of file Decl.cpp.

References clang::FunctionTemplateDecl::addSpecialization(), clang::FunctionTemplateSpecializationInfo::Create(), clang::TSK_ExplicitSpecialization, and clang::TSK_Undeclared.

Referenced by clang::TemplateDeclInstantiator::VisitCXXMethodDecl(), and clang::TemplateDeclInstantiator::VisitFunctionDecl().

## ◆ getTemplateSpecializationInfo()

FunctionTemplateSpecializationInfo * FunctionDecl::getTemplateSpecializationInfo | ( |  | ) | const

If this function is actually a function template specialization, retrieve information about this function template specialization.

Otherwise, returns NULL.

Definition at line 3663 of file Decl.cpp.

Referenced by clang::for(), getExplicitVisibilityAux(), clang::ASTNodeImporter::ImportFunctionTemplateWithTemplateArgsFromSpecialization(), clang::ASTNodeImporter::ImportTemplateInformation(), clang::ASTDeclWriter::VisitFunctionDecl(), and clang::ASTNodeTraverser< ASTDumper, TextNodeDumper >::VisitFunctionDecl().

## ◆ getTemplateSpecializationKind()

TemplateSpecializationKind FunctionDecl::getTemplateSpecializationKind | ( |  | ) | const

Determine what kind of template instantiation this function represents.

Definition at line 3756 of file Decl.cpp.

References clang::TSK_Undeclared.

Referenced by clang::Sema::CheckConstructor(), getTemplateInstantiationPattern(), clang::CodeGen::CodeGenModule::imbueXRayAttrs(), clang::ASTNodeImporter::ImportTemplateInformation(), isTemplateInstantiation(), and clang::Sema::MarkFunctionReferenced().

## ◆ getTemplateSpecializationKindForInstantiation()

TemplateSpecializationKind FunctionDecl::getTemplateSpecializationKindForInstantiation | ( |  | ) | const

Determine the kind of template specialization this function represents for the purpose of template instantiation.

Definition at line 3772 of file Decl.cpp.

References clang::TSK_Undeclared.

Referenced by clang::Sema::InstantiateFunctionDefinition(), isImplicitlyInstantiable(), and clang::Sema::MarkFunctionReferenced().

## ◆ hasBody() [1/2]

bool FunctionDecl::hasBody | ( | const FunctionDecl *& | Definition | ) | const

Returns true if the function has a body.

The function body might be in any of the (re-)declarations of this function. The variant that accepts a FunctionDecl pointer will set that function declaration to the actual declaration containing the body (if there is one).

Definition at line 2859 of file Decl.cpp.

References clang::Redeclarable< FunctionDecl >::redecls().

Referenced by AuditedType(), clang::interp::ByteCodeEmitter::compileFunc(), ComputeDefaultedComparisonExceptionSpec(), clang::CXXInstanceCall::getRuntimeDefinition(), clang::ento::ModelConsumer::HandleTopLevelDecl(), clang::cross_tu::hasBodyOrInit(), isImplicitlyInstantiable(), isOutOfLine(), and clang::CodeGen::CodeGenVTables::isVTableExternal().

## ◆ hasBody() [2/2]

bool clang::FunctionDecl::hasBody | ( |  | ) | const
| inline override virtual

Returns true if this `Decl` represents a declaration for a body of code, such as a function or method definition.

Note that `hasBody` can also return true if any redeclaration of this `Decl` represents a declaration for a body of code.

Reimplemented from clang::Decl.

Definition at line 2017 of file Decl.h.

References clang::Decl::hasBody().

Referenced by getBody(), and isInlineBuiltinDeclaration().

## ◆ hasImplicitReturnZero()

bool clang::FunctionDecl::hasImplicitReturnZero | ( |  | ) | const
| inline

Whether falling off this function implicitly returns null/zero.

If a more specific implicit return value is required, front-ends should synthesize the appropriate return statements.

Definition at line 2158 of file Decl.h.

References clang::DeclContext::FunctionDeclBits.

Referenced by clang::CodeGen::CodeGenFunction::GenerateCode(), and clang::ASTDeclWriter::VisitFunctionDecl().

## ◆ hasInheritedPrototype()

bool clang::FunctionDecl::hasInheritedPrototype | ( |  | ) | const
| inline

Whether this function inherited its prototype from a previous declaration.

Definition at line 2189 of file Decl.h.

References clang::DeclContext::FunctionDeclBits.

Referenced by clang::ASTDeclWriter::VisitCXXMethodDecl(), and clang::ASTDeclWriter::VisitFunctionDecl().

## ◆ hasPrototype()

bool clang::FunctionDecl::hasPrototype | ( |  | ) | const
| inline

Whether this function has a prototype, either because one was explicitly written or because it was "inherited" by merging a declaration without a prototype with a declaration that has a prototype.

Definition at line 2173 of file Decl.h.

Referenced by EmitFunctionDeclPointer(), and isFunctionLocalClass().

## ◆ hasSkippedBody()

bool clang::FunctionDecl::hasSkippedBody | ( |  | ) | const
| inline

True if the function was a definition but its body was skipped.

Definition at line 2341 of file Decl.h.

References clang::DeclContext::FunctionDeclBits.

Referenced by clang::ASTDeclWriter::VisitFunctionDecl().

## ◆ hasTrivialBody()

bool FunctionDecl::hasTrivialBody | ( |  | ) | const

Returns whether the function has a trivial body that does not require any specific codegen.

Definition at line 2870 of file Decl.cpp.

Referenced by CanSkipVTablePointerInitialization(), HasTrivialDestructorBody(), clang::Sema::isEmptyCudaConstructor(), clang::Sema::isEmptyCudaDestructor(), and clang::CodeGen::CodeGenModule::TryEmitBaseDestructorAsAlias().

## ◆ hasWrittenPrototype()

bool clang::FunctionDecl::hasWrittenPrototype | ( |  | ) | const
| inline

Whether this function has a written prototype.

Definition at line 2178 of file Decl.h.

References clang::DeclContext::FunctionDeclBits.

Referenced by clang::ASTDeclWriter::VisitCXXMethodDecl(), clang::ASTDeclWriter::VisitFunctionDecl(), and clang::TemplateDeclInstantiator::VisitFunctionDecl().

## ◆ instantiationIsPending()

bool clang::FunctionDecl::instantiationIsPending | ( |  | ) | const
| inline

Whether the instantiation of this function is pending.

This bit is set when the decision to instantiate this function is made and unset if and when the function body is created. That leaves out cases where instantiation did not happen because the template definition was not seen in this TU. This bit remains set in those cases, under the assumption that the instantiation will happen in some other TU.

Definition at line 2222 of file Decl.h.

References clang::DeclContext::FunctionDeclBits.

## ◆ isConsteval()

bool clang::FunctionDecl::isConsteval | ( |  | ) | const
| inline

Definition at line 2212 of file Decl.h.

References clang::CSK_consteval, and clang::DeclContext::FunctionDeclBits.

Referenced by CheckConstexprDeclStmt(), CheckConstexprFunctionBody(), CheckConstexprParameterTypes(), CheckConstexprReturnType(), clang::Sema::CheckMain(), and printExplicitSpecifier().

## ◆ isConstexpr()

bool clang::FunctionDecl::isConstexpr | ( |  | ) | const
| inline

Whether this is a (C++11) constexpr function or constexpr constructor.

Definition at line 2200 of file Decl.h.

References clang::CSK_unspecified, and clang::DeclContext::FunctionDeclBits.

Referenced by CheckConstexprFunction(), clang::Sema::CheckFunctionTemplateSpecialization(), clang::Sema::CheckMain(), CheckTrivialDefaultConstructor(), clang::interp::ByteCodeEmitter::compileFunc(), clang::Sema::FinalizeVarWithDestructor(), isImplicitlyDefinableConstexprFunction(), clang::Sema::MarkFunctionReferenced(), clang::Sema::maybeAddCUDAHostDeviceAttrs(), specialMemberIsConstexpr(), and clang::JSONNodeDumper::VisitFunctionDecl().

## ◆ isConstexprSpecified()

bool clang::FunctionDecl::isConstexprSpecified | ( |  | ) | const
| inline

Definition at line 2209 of file Decl.h.

References clang::CSK_constexpr, and clang::DeclContext::FunctionDeclBits.

Referenced by printExplicitSpecifier().

## ◆ isCPUDispatchMultiVersion()

bool FunctionDecl::isCPUDispatchMultiVersion | ( |  | ) | const

True if this function is a multiversioned dispatch function as a part of the cpu_specific/cpu_dispatch functionality.

Definition at line 3131 of file Decl.cpp.

References isMultiVersion().

Referenced by CheckFallThroughForBody().

## ◆ isCPUSpecificMultiVersion()

bool FunctionDecl::isCPUSpecificMultiVersion | ( |  | ) | const

True if this function is a multiversioned processor specific function as a part of the cpu_specific/cpu_dispatch functionality.

Definition at line 3135 of file Decl.cpp.

References isMultiVersion().

## ◆ isDefaulted()

bool clang::FunctionDecl::isDefaulted | ( |  | ) | const
| inline

Whether this function is defaulted per C++0x.

Only valid for special member functions.

Definition at line 2130 of file Decl.h.

References clang::DeclContext::FunctionDeclBits.

Referenced by clang::ODRHash::AddFunctionDecl(), clang::Sema::AddMethodCandidate(), clang::Sema::AddOverloadCandidate(), clang::Sema::DefineDefaultedComparison(), clang::Sema::DefineImplicitCopyAssignment(), clang::Sema::DefineImplicitCopyConstructor(), clang::Sema::DefineImplicitDefaultConstructor(), clang::Sema::DefineImplicitDestructor(), clang::Sema::DefineImplicitMoveAssignment(), clang::Sema::DefineImplicitMoveConstructor(), clang::Sema::DiagnoseDeletedDefaultedFunction(), clang::CodeGen::CodeGenFunction::EmitConstructorBody(), EmitMemberInitializer(), clang::CodeGen::CodeGenFunction::GenerateCode(), HandleConstructorCall(), clang::Sema::isImplicitlyDeleted(), isMemcpyEquivalentSpecialMember(), clang::Sema::MarkFunctionReferenced(), clang::Sema::NoteDeletedFunction(), PerformConstructorInitialization(), clang::Sema::SetDeclDeleted(), TryValueInitialization(), clang::ASTDeclWriter::VisitFunctionDecl(), clang::JSONNodeDumper::VisitFunctionDecl(), clang::TextNodeDumper::VisitFunctionDecl(), and clang::ASTDeclReader::VisitFunctionDecl().

## ◆ isDefined() [1/2]

bool FunctionDecl::isDefined | ( | const FunctionDecl *& | Definition | ) | const

Returns true if the function has a definition that does not need to be instantiated.

The variant that accepts a FunctionDecl pointer will set that function declaration to the declaration that is a definition (if there is one).

Definition at line 2883 of file Decl.cpp.

References clang::Redeclarable< FunctionDecl >::redecls().

Referenced by clang::Sema::CheckForFunctionRedefinition(), clang::interp::ByteCodeEmitter::compileFunc(), clang::CodeGen::CodeGenFunction::GenerateVarArgsThunk(), getMethodBody(), clang::CXXMethodDecl::hasInlineBody(), clang::TemplateDeclInstantiator::InitFunctionInstantiation(), clang::Sema::InstantiateFunctionDefinition(), clang::Sema::isEmptyCudaConstructor(), clang::Sema::isEmptyCudaDestructor(), clang::Sema::isUnavailableAlignedAllocationFunction(), clang::Sema::MarkFunctionReferenced(), and clang::Sema::PerformPendingInstantiations().

## ◆ isDefined() [2/2]

virtual bool clang::FunctionDecl::isDefined | ( |  | ) | const
| inline virtual

Definition at line 2033 of file Decl.h.

## ◆ isDeleted()

bool clang::FunctionDecl::isDeleted | ( |  | ) | const
| inline

Whether this function has been deleted.

A function that is "deleted" (via the C++0x "= delete" syntax) acts like a normal function, except that it cannot actually be called or have its address taken. Deleted functions are typically used in C++ overload resolution to attract arguments whose type or lvalue/rvalue-ness would permit the use of a different overload that would behave incorrectly. For example, one might use deleted functions to ban implicit conversion from a floating-point number to an Integer type:

struct Integer {
Integer(long); // construct from a long
Integer(double) = delete; // no construction from float or double
Integer(long double) = delete; // no construction from long double
};

Definition at line 2259 of file Decl.h.

References clang::Decl::getCanonicalDecl().

Referenced by clang::ODRHash::AddFunctionDecl(), clang::Sema::AddMethodCandidate(), clang::Sema::AddOverloadCandidate(), clang::Sema::DefineDefaultedComparison(), clang::Sema::DefineImplicitCopyAssignment(), clang::Sema::DefineImplicitCopyConstructor(), clang::Sema::DefineImplicitDefaultConstructor(), clang::Sema::DefineImplicitDestructor(), clang::Sema::DefineImplicitMoveAssignment(), clang::Sema::DefineImplicitMoveConstructor(), clang::Sema::DefineInheritingConstructor(), clang::Sema::DiagnoseDeletedDefaultedFunction(), EvaluateUnaryTypeTrait(), clang::CXXRecordDecl::finishedDefaultedOrDeletedMember(), isFunctionLocalClass(), clang::Sema::isImplicitlyDeleted(), clang::Sema::MarkFunctionReferenced(), clang::Sema::NoteDeletedFunction(), clang::Sema::SetDeclDeleted(), ShouldWarnAboutMissingPrototype(), TryValueInitialization(), clang::JSONNodeDumper::VisitFunctionDecl(), clang::TextNodeDumper::VisitFunctionDecl(), and clang::TemplateDeclInstantiator::VisitFunctionDecl().

## ◆ isDeletedAsWritten()

bool clang::FunctionDecl::isDeletedAsWritten | ( |  | ) | const
| inline

Definition at line 2263 of file Decl.h.

References clang::DeclContext::FunctionDeclBits.

Referenced by clang::ODRHash::AddFunctionDecl(), clang::TemplateDeclInstantiator::VisitCXXMethodDecl(), clang::JSONNodeDumper::VisitFunctionDecl(), and clang::TextNodeDumper::VisitFunctionDecl().

## ◆ isDestroyingOperatorDelete()

bool FunctionDecl::isDestroyingOperatorDelete | ( |  | ) | const

Determine whether this is a destroying operator delete.

Definition at line 3057 of file Decl.cpp.

References clang::Type::getAsCXXRecordDecl(), getNumParams(), getOverloadedOperator(), getParamDecl(), clang::ValueDecl::getType(), and clang::Decl::isInStdNamespace().

Referenced by CheckOperatorDeleteDeclaration(), clang::CodeGen::CodeGenFunction::emitImplicitAssignmentOperatorBody(), EmitObjectDelete(), clang::CodeGen::CodeGenFunction::EnterDtorCleanups(), and getUsualDeleteParams().

## ◆ isExplicitlyDefaulted()

bool clang::FunctionDecl::isExplicitlyDefaulted | ( |  | ) | const
| inline

Whether this function is explicitly defaulted per C++0x.

Only valid for special member functions.

Definition at line 2135 of file Decl.h.

References clang::DeclContext::FunctionDeclBits.

Referenced by clang::ODRHash::AddFunctionDecl(), clang::Sema::CheckExplicitlyDefaultedFunction(), clang::Sema::CheckExplicitlyDefaultedSpecialMember(), findImplicitlyDeclaredEqualityComparisons(), printExplicitSpecifier(), clang::TemplateDeclInstantiator::VisitCXXMethodDecl(), clang::ASTDeclWriter::VisitFunctionDecl(), and clang::TemplateDeclInstantiator::VisitFunctionDecl().

## ◆ isExternC()

bool FunctionDecl::isExternC | ( |  | ) | const

Determines whether this function is a function with external, C linkage.

Definition at line 3075 of file Decl.cpp.

References isDeclExternC().

Referenced by clang::Sema::CheckEquivalentExceptionSpec(), clang::Sema::CheckLiteralOperatorDeclaration(), getFunctionSourceLocation(), and getMemoryFunctionKind().

## ◆ isFunctionTemplateSpecialization()

bool clang::FunctionDecl::isFunctionTemplateSpecialization | ( |  | ) | const
| inline

Determine whether this function is a function template specialization.

Definition at line 2589 of file Decl.h.

References clang::isTemplateInstantiation().

Referenced by clang::CodeGen::CodeGenFunction::EmitLambdaDelegatingInvokeBody(), clang::isGenericLambdaCallOperatorOrStaticInvokerSpecialization(), clang::isGenericLambdaCallOperatorSpecialization(), printExplicitSpecifier(), and ShouldWarnAboutMissingPrototype().

## ◆ isGlobal()

bool FunctionDecl::isGlobal | ( |  | ) | const

Determines whether this is a global function.

Definition at line 3089 of file Decl.cpp.

References getCanonicalDecl(), clang::Decl::getDeclContext(), clang::DeclContext::getParent(), getStorageClass(), clang::DeclContext::isNamespace(), and clang::SC_Static.

Referenced by ShouldWarnAboutMissingPrototype(), and clang::CallGraph::VisitFunctionDecl().

## ◆ isImplicitlyInstantiable()

bool FunctionDecl::isImplicitlyInstantiable | ( |  | ) | const

Determines whether this function is a function template specialization or a member of a class template specialization that can be implicitly instantiated.

Definition at line 3571 of file Decl.cpp.

References getTemplateInstantiationPattern(), getTemplateSpecializationKindForInstantiation(), hasBody(), isInlined(), clang::Decl::isInvalidDecl(), clang::TSK_ExplicitInstantiationDeclaration, clang::TSK_ExplicitInstantiationDefinition, clang::TSK_ExplicitSpecialization, clang::TSK_ImplicitInstantiation, and clang::TSK_Undeclared.

Referenced by isImplicitlyDefinableConstexprFunction(), and clang::Sema::MarkFunctionReferenced().

## ◆ isInExternCContext()

bool FunctionDecl::isInExternCContext | ( |  | ) | const

Determines whether this function's context is, or is nested within, a C++ extern "C" linkage spec.

Definition at line 3079 of file Decl.cpp.

References clang::Decl::getLexicalDeclContext(), and clang::DeclContext::isExternCContext().

## ◆ isInExternCXXContext()

bool FunctionDecl::isInExternCXXContext | ( |  | ) | const

Determines whether this function's context is, or is nested within, a C++ extern "C++" linkage spec.

Definition at line 3085 of file Decl.cpp.

References clang::Decl::getLexicalDeclContext(), and clang::DeclContext::isExternCXXContext().

## ◆ isInlineBuiltinDeclaration()

bool FunctionDecl::isInlineBuiltinDeclaration | ( |  | ) | const

Determine if this function provides an inline implementation of a builtin.

Definition at line 3049 of file Decl.cpp.

References getBuiltinID(), hasBody(), and isInlineSpecified().

Referenced by clang::CodeGen::CodeGenModule::CreateFunctionTypeMetadataForIcall(), and EmitDirectCallee().

## ◆ isInlined()

bool clang::FunctionDecl::isInlined | ( |  | ) | const
| inline

Determine whether this function should be inlined, because it is either marked "inline" or "constexpr" or is a member function of a class that was defined in the class body.

Definition at line 2513 of file Decl.h.

References clang::DeclContext::FunctionDeclBits.

Referenced by clang::Sema::CheckForFunctionRedefinition(), clang::CodeGen::CGDebugInfo::EmitFuncDeclForCallSite(), isImplicitlyInstantiable(), isInlineDefinitionExternallyVisible(), isMSExternInline(), clang::Sema::MarkFunctionReferenced(), clang::CodeGen::CodeGenModule::SetLLVMFunctionAttributesForDefinition(), setPreviousDeclaration(), ShouldWarnAboutMissingPrototype(), useInlineVisibilityHidden(), clang::TemplateDeclInstantiator::VisitCXXMethodDecl(), clang::ASTDeclWriter::VisitFunctionDecl(), and clang::TemplateDeclInstantiator::VisitFunctionDecl().

## ◆ isInlineDefinitionExternallyVisible()

bool FunctionDecl::isInlineDefinitionExternallyVisible | ( |  | ) | const

For an inline function definition in C, or for a gnu_inline function in C++, determine whether the definition will be externally visible.

Inline function definitions are always available for inlining optimizations. However, depending on the language dialect, declaration specifiers, and attributes, the definition of an inline function may or may not be "externally" visible to other translation units in the program.

In C99, inline definitions are not externally visible by default. However, if even one of the global-scope declarations is marked "extern inline", the inline definition becomes externally visible (C99 6.7.4p6).

In GNU89 mode, or if the gnu_inline attribute is attached to the function definition, we use the GNU semantics for inline, which are nearly the opposite of C99 semantics. In particular, "inline" by itself will create an externally visible symbol, but "extern inline" will not create an externally visible symbol.

Definition at line 3449 of file Decl.cpp.

References doesThisDeclarationHaveABody(), isInlined(), and willHaveBody().

## ◆ isInlineSpecified()

bool clang::FunctionDecl::isInlineSpecified | ( |  | ) | const
| inline

Determine whether the "inline" keyword was specified for this function.

Definition at line 2499 of file Decl.h.

References clang::DeclContext::FunctionDeclBits.

Referenced by clang::ODRHash::AddFunctionDecl(), canRedefineFunction(), clang::Sema::CheckForFunctionRedefinition(), clang::Sema::CheckMain(), computeKeyFunction(), isInlineBuiltinDeclaration(), printExplicitSpecifier(), RedeclForcesDefC99(), clang::TemplateDeclInstantiator::VisitCXXMethodDecl(), clang::ASTDeclWriter::VisitFunctionDecl(), clang::JSONNodeDumper::VisitFunctionDecl(), clang::TextNodeDumper::VisitFunctionDecl(), and clang::TemplateDeclInstantiator::VisitFunctionDecl().

## ◆ isLateTemplateParsed()

bool clang::FunctionDecl::isLateTemplateParsed | ( |  | ) | const
| inline

Whether this templated function will be late parsed.

Definition at line 2109 of file Decl.h.

References clang::DeclContext::FunctionDeclBits.

Referenced by clang::Sema::ActOnStartOfFunctionDef(), clang::ODRHash::AddFunctionDecl(), clang::Sema::InstantiateFunctionDefinition(), and clang::ASTDeclWriter::VisitFunctionDecl().

## ◆ isMain()

bool FunctionDecl::isMain | ( |  | ) | const

Determines whether this function is "main", which is the entry point into an executable program.

Definition at line 2926 of file Decl.cpp.

References clang::TranslationUnitDecl::getASTContext(), clang::Decl::getDeclContext(), clang::ASTContext::getLangOpts(), clang::DeclContext::getRedeclContext(), and isNamed().

Referenced by getFunctionSourceLocation(), clang::Sema::IsOverload(), clang::Sema::SetDeclDeleted(), and clang::CodeGen::CodeGenFunction::StartFunction().

## ◆ isMSExternInline()

bool FunctionDecl::isMSExternInline | ( |  | ) | const

The combination of the extern and inline keywords under MSVC forces the function to be required.

Note: This function assumes that we will only get called when isInlined() would return true for this FunctionDecl.

Definition at line 3279 of file Decl.cpp.

References isInlined().

## ◆ isMSVCRTEntryPoint()

bool FunctionDecl::isMSVCRTEntryPoint | ( |  | ) | const

Determines whether this function is a MSVCRT user defined entry point.

Definition at line 2934 of file Decl.cpp.

References clang::TranslationUnitDecl::getASTContext(), clang::Decl::getDeclContext(), clang::NamedDecl::getIdentifier(), clang::NamedDecl::getName(), clang::DeclContext::getRedeclContext(), clang::ASTContext::getTargetInfo(), and clang::TargetInfo::getTriple().

Referenced by clang::Sema::IsOverload(), and clang::CodeGen::CodeGenFunction::StartFunction().

## ◆ isMultiVersion()

bool clang::FunctionDecl::isMultiVersion | ( |  | ) | const
| inline

True if this function is considered a multiversioned function.

Definition at line 2351 of file Decl.h.

References clang::Decl::getCanonicalDecl().

Referenced by clang::CodeGen::CodeGenFunction::checkTargetFeatures(), clang::ASTContext::forEachMultiversionedFunctionVersion(), clang::CodeGen::CodeGenModule::getLLVMLinkageForDeclarator(), getMangledNameImpl(), isBetterMultiversionCandidate(), isCPUDispatchMultiVersion(), isCPUSpecificMultiVersion(), isTargetMultiVersion(), clang::Sema::NoteOverloadCandidate(), and clang::ASTDeclWriter::VisitFunctionDecl().

## ◆ isNoReturn()

bool FunctionDecl::isNoReturn | ( |  | ) | const

Determines whether this function is known to be 'noreturn', through an attribute on its declaration or its type.

Definition at line 3109 of file Decl.cpp.

References clang::ValueDecl::getType().

Referenced by isFunctionLocalClass().

## ◆ isOutOfLine()

bool FunctionDecl::isOutOfLine | ( |  | ) | const
| override virtual

Determine whether this is or was instantiated from an out-of-line definition of a member function.

Reimplemented from clang::Decl.

Definition at line 3845 of file Decl.cpp.

References getInstantiatedFromMemberFunction(), getPrimaryTemplate(), hasBody(), clang::Decl::isOutOfLine(), and isOutOfLine().

Referenced by clang::CXXMethodDecl::hasInlineBody(), isOutOfLine(), clang::TemplateDeclInstantiator::VisitCXXMethodDecl(), and clang::TemplateDeclInstantiator::VisitFunctionDecl().

## ◆ isOverloadedOperator()

bool clang::FunctionDecl::isOverloadedOperator | ( |  | ) | const
| inline

Whether this function declaration represents an C++ overloaded operator, e.g., "operator+".

Definition at line 2525 of file Decl.h.

References clang::OO_None.

Referenced by clang::Sema::CheckOverloadedOperatorDeclaration(), clang::Sema::DefineImplicitCopyAssignment(), clang::Sema::DefineImplicitMoveAssignment(), DiagnoseShiftCompare(), and clang::TemplateDeclInstantiator::VisitFunctionDecl().

## ◆ isPure()

bool clang::FunctionDecl::isPure | ( |  | ) | const
| inline

Whether this virtual function is pure, i.e.

makes the containing class abstract.

Definition at line 2105 of file Decl.h.

References clang::DeclContext::FunctionDeclBits, and P.

Referenced by clang::ODRHash::AddFunctionDecl(), clang::CXXMethodDecl::getDevirtualizedMethod(), HandleVirtualDispatch(), isFunctionLocalClass(), clang::CXXMethodDecl::isVirtual(), isVirtualCall(), clang::TemplateDeclInstantiator::VisitCXXMethodDecl(), clang::ASTDeclWriter::VisitFunctionDecl(), clang::JSONNodeDumper::VisitFunctionDecl(), and clang::TextNodeDumper::VisitFunctionDecl().

## ◆ isReplaceableGlobalAllocationFunction()

bool FunctionDecl::isReplaceableGlobalAllocationFunction | ( | bool * | IsAligned = `nullptr` | ) | const

Determines whether this function is one of the replaceable global allocation functions: void *operator new(size_t); void *operator new(size_t, const std::nothrow_t &) noexcept; void *operator new[](size_t); void *operator new[](size_t, const std::nothrow_t &) noexcept; void operator delete(void *) noexcept; void operator delete(void *, std::size_t) noexcept; [C++1y] void operator delete(void *, const std::nothrow_t &) noexcept; void operator delete[](void *) noexcept; void operator delete[](void *, std::size_t) noexcept; [C++1y] void operator delete[](void *, const std::nothrow_t &) noexcept; These functions have special behavior under C++1y [expr.new]: An implementation is allowed to omit a call to a replaceable global allocation function.

[...]

If this function is an aligned allocation/deallocation function, return true through IsAligned.

Definition at line 2984 of file Decl.cpp.

References clang::Type::castAs(), clang::Qualifiers::Const, clang::DeclarationName::CXXOperatorName, clang::Decl::getASTContext(), clang::QualType::getCVRQualifiers(), clang::DeclarationName::getCXXOverloadedOperator(), clang::Decl::getDeclContext(), clang::NamedDecl::getDeclName(), clang::ASTContext::getLangOpts(), clang::Type::getPointeeType(), clang::DeclContext::getRedeclContext(), clang::ASTContext::getSizeType(), clang::ValueDecl::getType(), clang::ASTContext::hasSameType(), clang::Type::isAlignValT(), clang::Type::isNothrowT(), clang::QualType::isNull(), clang::Type::isReferenceType(), and clang::DeclContext::isTranslationUnit().

Referenced by clang::Sema::CheckEquivalentExceptionSpec(), clang::CodeGen::CodeGenModule::CreateFunctionTypeMetadataForIcall(), clang::CodeGen::CodeGenFunction::EmitCXXNewExpr(), EmitNewDeleteCall(), EvaluateAtomic(), getAlignmentArgument(), clang::Sema::isUnavailableAlignedAllocationFunction(), performTypeAdjustment(), resolveBuiltinNewDeleteOverload(), and clang::ento::ExprEngine::VisitCXXNewExpr().

## ◆ isReservedGlobalPlacementOperator()

bool FunctionDecl::isReservedGlobalPlacementOperator | ( |  | ) | const

Determines whether this operator new or delete is one of the reserved global placement operators: void *operator new(size_t, void *); void *operator new[](size_t, void *); void operator delete(void *, void *); void operator delete[](void *, void *); These functions have special behavior under [new.delete.placement]: These functions are reserved, a C++ program may not define functions that displace the versions in the Standard C++ library.

The provisions of [basic.stc.dynamic] do not apply to these reserved placement forms of operator new and operator delete.

This function must be an allocation or deallocation function.

Definition at line 2961 of file Decl.cpp.

References clang::Type::castAs(), clang::DeclarationName::CXXOperatorName, clang::Decl::getDeclContext(), clang::NamedDecl::getDeclName(), clang::DeclContext::getRedeclContext(), clang::ValueDecl::getType(), and clang::DeclContext::isTranslationUnit().

Referenced by CalculateCookiePadding(), clang::CodeGen::CodeGenFunction::EmitCXXNewExpr(), getAlignmentArgument(), and clang::ento::ExprEngine::VisitCXXNewExpr().

## ◆ isStatic()

bool clang::FunctionDecl::isStatic | ( |  | ) | const
| inline

Definition at line 2521 of file Decl.h.

References getStorageClass(), and clang::SC_Static.

Referenced by clang::CodeGen::CGDebugInfo::EmitFuncDeclForCallSite().

## ◆ isTargetMultiVersion()

bool FunctionDecl::isTargetMultiVersion | ( |  | ) | const

True if this function is a multiversioned dispatch function as a part of the target functionality.

Definition at line 3139 of file Decl.cpp.

References isMultiVersion().

## ◆ isTemplateInstantiation()

bool FunctionDecl::isTemplateInstantiation | ( |  | ) | const

Determines if the given function was instantiated from a function template.

Definition at line 3606 of file Decl.cpp.

References getTemplateSpecializationKind(), and clang::isTemplateInstantiation().

Referenced by clang::Sema::CheckInstantiatedFunctionTemplateConstraints(), clang::Sema::isEmptyCudaConstructor(), and clang::Sema::isEmptyCudaDestructor().

## ◆ isThisDeclarationADefinition()

bool clang::FunctionDecl::isThisDeclarationADefinition | ( |  | ) | const
| inline

Returns whether this specific declaration of the function is also a definition that does not contain uninstantiated body.

This does not determine whether the function has been defined (e.g., in a previous definition); for that information, use isDefined.

Note: the function declaration does not become a definition until the parser reaches the definition, if called before, this function will return `false`.

Definition at line 2071 of file Decl.h.

References clang::Decl::hasDefiningAttr().

Referenced by clang::ODRHash::AddFunctionDecl(), clang::for(), clang::CallGraph::VisitFunctionDecl(), and clang::TemplateDeclInstantiator::VisitFunctionDecl().

## ◆ isTrivial()

bool clang::FunctionDecl::isTrivial | ( |  | ) | const
| inline

Whether this function is "trivial" in some specialized C++ senses.

Can only be true for default constructors, copy constructors, copy assignment operators, and destructors. Not meaningful until the class has been fully built by Sema.

Definition at line 2122 of file Decl.h.

References clang::DeclContext::FunctionDeclBits.

Referenced by checkMoveAssignmentForRepeatedMove(), CheckTrivialDefaultConstructor(), clang::CodeGen::CodeGenFunction::EmitCXXConstructorCall(), clang::CodeGen::CodeGenFunction::EnterDtorCleanups(), clang::Sema::FinalizeVarWithDestructor(), findTrivialSpecialMember(), clang::CXXRecordDecl::finishedDefaultedOrDeletedMember(), HandleConstructorCall(), HandleDestructionImpl(), clang::Expr::isConstantInitializer(), clang::Sema::isEmptyCudaConstructor(), clang::Sema::isEmptyCudaDestructor(), isMemcpyEquivalentSpecialMember(), isTrivialObjectAssignment(), clang::Sema::MarkFunctionReferenced(), clang::Sema::MaybeBindToTemporary(), PerformConstructorInitialization(), ShouldDiagnoseUnusedDecl(), clang::CodeGen::ConstantEmitter::tryEmitPrivateForVarInit(), clang::ento::ExprEngine::VisitCXXConstructExpr(), clang::ASTDeclWriter::VisitFunctionDecl(), and clang::TextNodeDumper::VisitFunctionDecl().

## ◆ isTrivialForCall()

bool clang::FunctionDecl::isTrivialForCall | ( |  | ) | const
| inline

Definition at line 2125 of file Decl.h.

References clang::DeclContext::FunctionDeclBits.

Referenced by findTrivialSpecialMember(), clang::CXXRecordDecl::setTrivialForCallFlags(), and clang::ASTDeclWriter::VisitFunctionDecl().

## ◆ isUserProvided()

bool clang::FunctionDecl::isUserProvided | ( |  | ) | const
| inline

True if this method is user-declared and was not deleted or defaulted on its first declaration.

Definition at line 2147 of file Decl.h.

Referenced by checkTrivialSubobjectCall(), diagnoseDeprecatedCopyOperation(), findTrivialSpecialMember(), clang::CXXRecordDecl::finishedDefaultedOrDeletedMember(), isImplicitlyDefinableConstexprFunction(), and clang::Sema::SpecialMemberIsTrivial().

## ◆ isVariadic()

bool FunctionDecl::isVariadic | ( |  | ) | const

Whether this function is variadic.

Definition at line 2827 of file Decl.cpp.

References clang::ValueDecl::getType().

Referenced by AddFunctionParameterChunks(), canEmitDelegateCallArgs(), checkDirectCallValidity(), clang::Sema::CheckExplicitlyDefaultedSpecialMember(), checkVAStartIsInVariadicFunction(), compareOverloads(), convertArgsForAvailabilityChecks(), clang::CodeGen::CodeGenFunction::EmitCXXNewExpr(), clang::CodeGen::CodeGenFunction::EmitLambdaBlockInvokeBody(), clang::CodeGen::CodeGenFunction::EmitLambdaStaticInvokeBody(), GetSignature(), clang::Sema::maybeAddCUDAHostDeviceAttrs(), llvm::FoldingSetTrait< AllocKind >::Profile(), and clang::JSONNodeDumper::VisitFunctionDecl().

## ◆ isVirtualAsWritten()

bool clang::FunctionDecl::isVirtualAsWritten | ( |  | ) | const
| inline

Whether this function is marked as virtual explicitly.

Definition at line 2096 of file Decl.h.

References clang::DeclContext::FunctionDeclBits.

Referenced by clang::ODRHash::AddFunctionDecl(), clang::TemplateDeclInstantiator::InitMethodInstantiation(), clang::CXXMethodDecl::isVirtual(), printExplicitSpecifier(), clang::ASTDeclWriter::VisitFunctionDecl(), clang::JSONNodeDumper::VisitFunctionDecl(), and clang::TextNodeDumper::VisitFunctionDecl().

## ◆ param_begin() [1/2]

param_iterator clang::FunctionDecl::param_begin | ( |  | ) |
| inline

Definition at line 2411 of file Decl.h.

Referenced by AuditedType(), hasIdenticalPassObjectSizeAttrs(), clang::CodeGen::CodeGenFunction::StartThunk(), clang::TextNodeDumper::VisitFunctionDecl(), and clang::ASTNodeTraverser< ASTDumper, TextNodeDumper >::VisitFunctionDecl().

## ◆ param_begin() [2/2]

param_const_iterator clang::FunctionDecl::param_begin | ( |  | ) | const
| inline

Definition at line 2413 of file Decl.h.

## ◆ param_empty()

bool clang::FunctionDecl::param_empty | ( |  | ) | const
| inline

Definition at line 2410 of file Decl.h.

Referenced by clang::TextNodeDumper::VisitFunctionDecl().

## ◆ param_end() [1/2]

param_iterator clang::FunctionDecl::param_end | ( |  | ) |
| inline

Definition at line 2412 of file Decl.h.

Referenced by AuditedType(), and clang::CodeGen::CodeGenFunction::StartThunk().

## ◆ param_end() [2/2]

param_const_iterator clang::FunctionDecl::param_end | ( |  | ) | const
| inline

Definition at line 2414 of file Decl.h.

## ◆ param_size()

size_t clang::FunctionDecl::param_size | ( |  | ) | const
| inline

Definition at line 2415 of file Decl.h.

Referenced by clang::ODRHash::AddFunctionDecl(), clang::Sema::CheckLiteralOperatorDeclaration(), convertArgsForAvailabilityChecks(), create_call_once(), create_dispatch_once(), create_dispatch_sync(), create_OSAtomicCompareAndSwap(), and clang::ASTDeclWriter::VisitFunctionDecl().

## ◆ parameters() [1/2]

ArrayRef<ParmVarDecl *> clang::FunctionDecl::parameters | ( |  | ) | const
| inline

Definition at line 2399 of file Decl.h.

Referenced by clang::ODRHash::AddFunctionDecl(), clang::Sema::buildCoroutineParameterMoves(), clang::CodeGen::CodeGenFunction::BuildFunctionArgList(), canEmitDelegateCallArgs(), CheckNonNullArguments(), clang::Sema::CheckOverloadedOperatorDeclaration(), checkVAStartIsInVariadicFunction(), compareOverloads(), clang::interp::ByteCodeEmitter::compileFunc(), decomposeTypeForEH(), diagReturnOnAllocFailure(), clang::CodeGen::CodeGenFunction::EmitCallAndReturnForThunk(), clang::CodeGen::emitDeclareSimdFunction(), clang::CodeGen::CodeGenFunction::EmitLambdaDelegatingInvokeBody(), clang::comments::DeclInfo::fill(), clang::for(), functionHasPassObjectSizeParams(), getMinRequiredArguments(), getPackIndexForParam(), getStaticBooleanValue(), hasNonTrivialConstructorCall(), isOSObjectRelated(), clang::ento::AnyFunctionCall::parameters(), clang::consumed::ConsumedAnalyzer::run(), setPrototype(), clang::TemplateDeclInstantiator::SubstFunctionType(), clang::Sema::SubstituteExplicitTemplateArguments(), clang::ASTDeclWriter::VisitFunctionDecl(), clang::ASTNodeTraverser< ASTDumper, TextNodeDumper >::VisitFunctionDecl(), and clang::ASTNodeTraverser< ASTDumper, TextNodeDumper >::VisitLambdaExpr().

## ◆ parameters() [2/2]

MutableArrayRef<ParmVarDecl *> clang::FunctionDecl::parameters | ( |  | ) |
| inline

Definition at line 2402 of file Decl.h.

## ◆ setBody()

void FunctionDecl::setBody | ( | Stmt * | B | ) |

Definition at line 2906 of file Decl.cpp.

References Body, clang::DeclContext::FunctionDeclBits, and clang::Stmt::getEndLoc().

Referenced by clang::Sema::ActOnFinishFunctionBody(), clang::Sema::DefineDefaultedComparison(), clang::Sema::DefineImplicitCopyConstructor(), clang::Sema::DefineImplicitDefaultConstructor(), clang::Sema::DefineImplicitDestructor(), clang::Sema::DefineImplicitMoveConstructor(), and clang::ASTNodeImporter::ImportFunctionDeclBody().

## ◆ setConstexprKind()

void clang::FunctionDecl::setConstexprKind | ( | ConstexprSpecKind | CSK | ) |
| inline

Definition at line 2203 of file Decl.h.

References clang::DeclContext::FunctionDeclBits.

Referenced by clang::Sema::CheckMain(), and clang::ASTDeclReader::VisitFunctionDecl().

## ◆ setDefaulted()

void clang::FunctionDecl::setDefaulted | ( | bool | D = `true` | ) |
| inline

Definition at line 2131 of file Decl.h.

References clang::DeclContext::FunctionDeclBits.

Referenced by clang::ASTDeclReader::VisitFunctionDecl().

## ◆ setDefaultedFunctionInfo()

void FunctionDecl::setDefaultedFunctionInfo | ( | DefaultedFunctionInfo * | Info | ) |

Definition at line 2846 of file Decl.cpp.

References Body, DefaultedInfo, and clang::DeclContext::FunctionDeclBits.

Referenced by clang::Sema::CheckExplicitlyDefaultedComparison(), clang::TemplateDeclInstantiator::SubstDefaultedFunction(), and clang::ASTDeclReader::VisitFunctionDecl().

## ◆ setDeletedAsWritten()

void clang::FunctionDecl::setDeletedAsWritten | ( | bool | D = `true` | ) |
| inline

Definition at line 2267 of file Decl.h.

References clang::DeclContext::FunctionDeclBits, and isExternC().

Referenced by clang::Sema::SetDeclDeleted(), and clang::ASTDeclReader::VisitFunctionDecl().

## ◆ setDependentTemplateSpecialization()

void FunctionDecl::setDependentTemplateSpecialization | ( | ASTContext & | Context,
|  | const UnresolvedSetImpl & | Templates,
|  | const TemplateArgumentListInfo & | TemplateArgs
| ) |  |

Specifies that this function declaration is actually a dependent function template specialization.

Definition at line 3714 of file Decl.cpp.

Referenced by clang::Sema::CheckDependentFunctionTemplateSpecialization(), clang::ASTNodeImporter::ImportTemplateInformation(), and clang::ASTDeclReader::VisitFunctionDecl().

## ◆ setDescribedFunctionTemplate()

void FunctionDecl::setDescribedFunctionTemplate | ( | FunctionTemplateDecl * | Template | ) |

Definition at line 3565 of file Decl.cpp.

Referenced by clang::ASTDeclReader::VisitFunctionDecl(), and clang::TemplateDeclInstantiator::VisitFunctionDecl().

## ◆ setExplicitlyDefaulted()

void clang::FunctionDecl::setExplicitlyDefaulted | ( | bool | ED = `true` | ) |
| inline

State that this function is explicitly defaulted per C++0x.

Only valid for special member functions.

Definition at line 2141 of file Decl.h.

References clang::DeclContext::FunctionDeclBits.

Referenced by clang::ASTDeclReader::VisitFunctionDecl().

## ◆ setFunctionTemplateSpecialization()

void clang::FunctionDecl::setFunctionTemplateSpecialization | ( | FunctionTemplateDecl * | Template,
|  | const TemplateArgumentList * | TemplateArgs,
|  | void * | InsertPos,
|  | TemplateSpecializationKind | TSK = `TSK_ImplicitInstantiation`,
|  | const TemplateArgumentListInfo * | TemplateArgsAsWritten = `nullptr`,
|  | SourceLocation | PointOfInstantiation = `SourceLocation()`
| ) |  |
| inline

Specify that this function declaration is actually a function template specialization.

Parameters

  Template | the function template that this function template specialization specializes.
  TemplateArgs | the template arguments that produced this function template specialization from the template.
  InsertPos | If non-NULL, the position in the function template specialization set where the function template specialization data will be inserted.
  TSK | the kind of template specialization this is.
  TemplateArgsAsWritten | location info of template arguments.
  PointOfInstantiation | point at which the function template specialization was first instantiated.

Definition at line 2655 of file Decl.h.

References clang::TranslationUnitDecl::getASTContext().

## ◆ setHasImplicitReturnZero()

void clang::FunctionDecl::setHasImplicitReturnZero | ( | bool | IRZ | ) |
| inline

State that falling off this function implicitly returns null/zero.

If a more specific implicit return value is required, front-ends should synthesize the appropriate return statements.

Definition at line 2165 of file Decl.h.

References clang::DeclContext::FunctionDeclBits.

Referenced by clang::Sema::CheckMSVCRTEntryPoint(), and clang::ASTDeclReader::VisitFunctionDecl().

## ◆ setHasInheritedPrototype()

void clang::FunctionDecl::setHasInheritedPrototype | ( | bool | P = `true` | ) |
| inline

State that this function inherited its prototype from a previous declaration.

Definition at line 2195 of file Decl.h.

References clang::DeclContext::FunctionDeclBits, and P.

Referenced by clang::ASTDeclReader::VisitFunctionDecl().

## ◆ setHasSkippedBody()

void clang::FunctionDecl::setHasSkippedBody | ( | bool | Skipped = `true` | ) |
| inline

Definition at line 2342 of file Decl.h.

References clang::DeclContext::FunctionDeclBits.

Referenced by clang::ASTDeclReader::VisitFunctionDecl().

## ◆ setHasWrittenPrototype()

void clang::FunctionDecl::setHasWrittenPrototype | ( | bool | P = `true` | ) |
| inline

State that this function has a written prototype.

Definition at line 2183 of file Decl.h.

References clang::DeclContext::FunctionDeclBits, and P.

Referenced by Create(), and clang::ASTDeclReader::VisitFunctionDecl().

## ◆ setImplicitlyInline()

void clang::FunctionDecl::setImplicitlyInline | ( | bool | I = `true` | ) |
| inline

Flag that this function is implicitly inline.

Definition at line 2508 of file Decl.h.

References clang::DeclContext::FunctionDeclBits.

Referenced by clang::Sema::SetDeclDeleted(), setPreviousDeclaration(), clang::ASTDeclReader::UpdateDecl(), clang::TemplateDeclInstantiator::VisitCXXMethodDecl(), clang::ASTDeclReader::VisitFunctionDecl(), and clang::TemplateDeclInstantiator::VisitFunctionDecl().

## ◆ setInlineSpecified()

void clang::FunctionDecl::setInlineSpecified | ( | bool | I | ) |
| inline

Set whether the "inline" keyword was specified for this function.

Definition at line 2502 of file Decl.h.

References clang::DeclContext::FunctionDeclBits.

Referenced by clang::ASTDeclReader::VisitFunctionDecl().

## ◆ setInstantiationIsPending()

void clang::FunctionDecl::setInstantiationIsPending | ( | bool | IC | ) |
| inline

State that the instantiation of this function is pending.

(see instantiationIsPending)

Definition at line 2228 of file Decl.h.

References clang::DeclContext::FunctionDeclBits.

Referenced by clang::Sema::InstantiateFunctionDefinition(), clang::Sema::MarkFunctionReferenced(), and clang::Sema::PerformPendingInstantiations().

## ◆ setInstantiationOfMemberFunction()

void clang::FunctionDecl::setInstantiationOfMemberFunction | ( | FunctionDecl * | FD,
|  | TemplateSpecializationKind | TSK
| ) |  |
| inline

Specify that this record is an instantiation of the member function FD.

Definition at line 2566 of file Decl.h.

References clang::TranslationUnitDecl::getASTContext().

## ◆ setIsMultiVersion()

void clang::FunctionDecl::setIsMultiVersion | ( | bool | V = `true` | ) |
| inline

Sets the multiversion state for this declaration and all of its redeclarations.

Definition at line 2357 of file Decl.h.

References clang::Decl::getCanonicalDecl(), and V.

Referenced by clang::ASTDeclReader::VisitFunctionDecl().

## ◆ setLateTemplateParsed()

void clang::FunctionDecl::setLateTemplateParsed | ( | bool | ILT = `true` | ) |
| inline

State that this templated function will be late parsed.

Definition at line 2114 of file Decl.h.

References clang::DeclContext::FunctionDeclBits.

Referenced by clang::Sema::MarkAsLateParsedTemplate(), clang::Sema::UnmarkAsLateParsedTemplate(), and clang::ASTDeclReader::VisitFunctionDecl().

## ◆ setLazyBody()

void clang::FunctionDecl::setLazyBody | ( | uint64_t | Offset | ) |
| inline

Definition at line 2084 of file Decl.h.

References clang::DeclContext::FunctionDeclBits.

Referenced by clang::ASTReader::getOwningModuleNameForDiagnostic().

## ◆ setParams()

void clang::FunctionDecl::setParams | ( | ArrayRef< ParmVarDecl *> | NewParamInfo | ) |
| inline

Definition at line 2430 of file Decl.h.

References clang::TranslationUnitDecl::getASTContext(), and clang::comments::getFunctionTypeLoc().

## ◆ setPreviousDeclaration()

void FunctionDecl::setPreviousDeclaration | ( | FunctionDecl * | PrevDecl | ) |

Definition at line 3144 of file Decl.cpp.

References getDescribedFunctionTemplate(), isInlined(), setImplicitlyInline(), and clang::Redeclarable< FunctionDecl >::setPreviousDecl().

## ◆ setPure()

void FunctionDecl::setPure | ( | bool | P = `true` | ) |

Definition at line 2913 of file Decl.cpp.

References clang::DeclContext::FunctionDeclBits, clang::Decl::getDeclContext(), P, and Parent.

Referenced by clang::Sema::CheckPureMethod(), and clang::ASTDeclReader::VisitFunctionDecl().

## ◆ setRangeEnd()

void clang::FunctionDecl::setRangeEnd | ( | SourceLocation | E | ) |
| inline

Definition at line 1984 of file Decl.h.

Referenced by clang::Sema::CheckPureMethod(), clang::TemplateDeclInstantiator::VisitCXXMethodDecl(), and clang::TemplateDeclInstantiator::VisitFunctionDecl().

## ◆ setStorageClass()

void clang::FunctionDecl::setStorageClass | ( | StorageClass | SClass | ) |
| inline

Sets the storage class as written in the source.

Definition at line 2493 of file Decl.h.

References clang::DeclContext::FunctionDeclBits.

Referenced by clang::ASTDeclReader::VisitFunctionDecl().

## ◆ setTemplateSpecializationKind()

void FunctionDecl::setTemplateSpecializationKind | ( | TemplateSpecializationKind | TSK,
|  | SourceLocation | PointOfInstantiation = `SourceLocation()`
| ) |  |

Determine what kind of template instantiation this function represents.

Definition at line 3806 of file Decl.cpp.

References clang::Decl::getASTContext(), clang::Decl::getASTMutationListener(), clang::SourceLocation::isValid(), and clang::TSK_ExplicitSpecialization.

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

## ◆ setTrivial()

void clang::FunctionDecl::setTrivial | ( | bool | IT | ) |
| inline

Definition at line 2123 of file Decl.h.

References clang::DeclContext::FunctionDeclBits.

Referenced by clang::ASTDeclReader::VisitFunctionDecl().

## ◆ setTrivialForCall()

void clang::FunctionDecl::setTrivialForCall | ( | bool | IT | ) |
| inline

Definition at line 2126 of file Decl.h.

References clang::DeclContext::FunctionDeclBits.

Referenced by clang::ASTDeclReader::VisitFunctionDecl().

## ◆ setUsesFPIntrin()

void clang::FunctionDecl::setUsesFPIntrin | ( | bool | Val | ) |
| inline

Definition at line 2238 of file Decl.h.

References clang::DeclContext::FunctionDeclBits.

Referenced by clang::ASTDeclReader::VisitFunctionDecl().

## ◆ setUsesSEHTry()

void clang::FunctionDecl::setUsesSEHTry | ( | bool | UST | ) |
| inline

Definition at line 2234 of file Decl.h.

References clang::DeclContext::FunctionDeclBits.

Referenced by clang::Sema::ActOnSEHTryBlock(), and clang::ASTDeclReader::VisitFunctionDecl().

## ◆ setVirtualAsWritten()

void clang::FunctionDecl::setVirtualAsWritten | ( | bool | V | ) |
| inline

State that this function is marked as virtual explicitly.

Definition at line 2101 of file Decl.h.

References clang::DeclContext::FunctionDeclBits, and V.

Referenced by clang::TemplateDeclInstantiator::InitMethodInstantiation(), and clang::ASTDeclReader::VisitFunctionDecl().

## ◆ setWillHaveBody()

void clang::FunctionDecl::setWillHaveBody | ( | bool | V = `true` | ) |
| inline

Definition at line 2348 of file Decl.h.

References clang::DeclContext::FunctionDeclBits, and V.

Referenced by clang::Sema::ActOnFinishFunctionBody(), clang::Sema::ActOnStartOfFunctionDef(), and clang::Sema::SetDeclDeleted().

## ◆ usesFPIntrin()

bool clang::FunctionDecl::usesFPIntrin | ( |  | ) | const
| inline

Indicates the function uses Floating Point constrained intrinsics.

Definition at line 2237 of file Decl.h.

References clang::DeclContext::FunctionDeclBits.

Referenced by clang::CodeGen::CodeGenFunction::StartFunction(), and clang::ASTDeclWriter::VisitFunctionDecl().

## ◆ usesSEHTry()

bool clang::FunctionDecl::usesSEHTry | ( |  | ) | const
| inline

Indicates the function uses __try.

Definition at line 2233 of file Decl.h.

References clang::DeclContext::FunctionDeclBits.

Referenced by clang::CodeGen::EHPersonality::get(), clang::CodeGen::CodeGenFunction::StartFunction(), and clang::ASTDeclWriter::VisitFunctionDecl().

## ◆ willHaveBody()

bool clang::FunctionDecl::willHaveBody | ( |  | ) | const
| inline

True if this function will eventually have a body, once it's fully parsed.

Definition at line 2347 of file Decl.h.

References clang::DeclContext::FunctionDeclBits.

Referenced by clang::Sema::ActOnStartOfFunctionDef(), clang::interp::ByteCodeEmitter::compileFunc(), clang::Sema::DefineDefaultedComparison(), clang::Sema::DefineImplicitCopyAssignment(), clang::Sema::DefineImplicitCopyConstructor(), clang::Sema::DefineImplicitDefaultConstructor(), clang::Sema::DefineImplicitDestructor(), clang::Sema::DefineImplicitMoveAssignment(), clang::Sema::DefineImplicitMoveConstructor(), clang::Sema::DefineInheritingConstructor(), clang::CXXMethodDecl::hasInlineBody(), clang::Sema::InstantiateFunctionDefinition(), and isInlineDefinitionExternallyVisible().

## Friends And Related Function Documentation

## ◆ ASTDeclReader

friend class ASTDeclReader
| friend

Definition at line 1941 of file Decl.h.

## ◆ ASTDeclWriter

friend class ASTDeclWriter
| friend

Definition at line 1942 of file Decl.h.

## Member Data Documentation

## ◆ Body

LazyDeclStmtPtr clang::FunctionDecl::Body

The body of the function.

Definition at line 1834 of file Decl.h.

Referenced by getBody(), setBody(), and setDefaultedFunctionInfo().

## ◆ DefaultedInfo

DefaultedFunctionInfo* clang::FunctionDecl::DefaultedInfo

Information about a future defaulted function definition.

Definition at line 1836 of file Decl.h.

Referenced by getDefaultedFunctionInfo(), and setDefaultedFunctionInfo().

The documentation for this class was generated from the following files:

- include/clang/AST/Decl.h
- lib/AST/Decl.cpp