clang::OverloadCandidateSet Class Reference

OverloadCandidateSet - A set of overload candidates, used in C++ overload resolution (C++ 13.3). More...

#include "clang/Sema/Overload.h"

Public Types
enum	CandidateSetKind { CSK_Normal, CSK_Operator, CSK_InitByUserDefinedConversion, CSK_InitByConstructor }
using	iterator = SmallVectorImpl< OverloadCandidate >::iterator

Public Member Functions
	OverloadCandidateSet (SourceLocation Loc, CandidateSetKind CSK)
	OverloadCandidateSet (const OverloadCandidateSet &)=delete
OverloadCandidateSet &	operator= (const OverloadCandidateSet &)=delete
	~OverloadCandidateSet ()
SourceLocation	getLocation () const
CandidateSetKind	getKind () const
bool	isNewCandidate (Decl *F)
	Determine when this overload candidate will be new to the overload set. More...
void	clear (CandidateSetKind CSK)
	Clear out all of the candidates. More...
iterator	begin ()
iterator	end ()
size_t	size () const
bool	empty () const
ConversionSequenceList	allocateConversionSequences (unsigned NumConversions)
	Allocate storage for conversion sequences for NumConversions conversions. More...
OverloadCandidate &	addCandidate (unsigned NumConversions=0, ConversionSequenceList Conversions=None)
	Add a new candidate with NumConversions conversion sequence slots to the overload set. More...
OverloadingResult	BestViableFunction (Sema &S, SourceLocation Loc, OverloadCandidateSet::iterator &Best)
	Find the best viable function on this overload set, if it exists. More...
void	NoteCandidates (Sema &S, OverloadCandidateDisplayKind OCD, ArrayRef< Expr *> Args, StringRef Opc="", SourceLocation Loc=SourceLocation(), llvm::function_ref< bool(OverloadCandidate &)> Filter=[](OverloadCandidate &) { return true;})
	When overload resolution fails, prints diagnostic messages containing the candidates in the candidate set. More...

Detailed Description

OverloadCandidateSet - A set of overload candidates, used in C++ overload resolution (C++ 13.3).

Definition at line 830 of file Overload.h.

Member Typedef Documentation

iterator

using clang::OverloadCandidateSet::iterator = SmallVectorImpl<OverloadCandidate>::iterator

Definition at line 917 of file Overload.h.

Member Enumeration Documentation

CandidateSetKind

enum clang::OverloadCandidateSet::CandidateSetKind

Enumerator
CSK_Normal	Normal lookup.
CSK_Operator	C++ [over.match.oper]: Lookup of operator function candidates in a call using operator syntax. Candidates that have no parameters of class type will be skipped unless there is a parameter of (reference to) enum type and the corresponding argument is of the same enum type.
CSK_InitByUserDefinedConversion	C++ [over.match.copy]: Copy-initialization of an object of class type by user-defined conversion.
CSK_InitByConstructor	C++ [over.match.ctor], [over.match.list] Initialization of an object of class type by constructor, using either a parenthesized or braced list of arguments.

Definition at line 832 of file Overload.h.

Constructor & Destructor Documentation

OverloadCandidateSet() [1/2]

clang::OverloadCandidateSet::OverloadCandidateSet ( SourceLocation  Loc, CandidateSetKind  CSK  )

inline

Definition at line 899 of file Overload.h.

OverloadCandidateSet() [2/2]

clang::OverloadCandidateSet::OverloadCandidateSet ( const OverloadCandidateSet &  )

delete

~OverloadCandidateSet()

clang::OverloadCandidateSet::~OverloadCandidateSet ( )

inline

Definition at line 903 of file Overload.h.

Member Function Documentation

addCandidate()

OverloadCandidate& clang::OverloadCandidateSet::addCandidate ( unsigned  NumConversions = 0, ConversionSequenceList  Conversions = None  )

inline

Add a new candidate with NumConversions conversion sequence slots to the overload set.

Definition at line 941 of file Overload.h.

References clang::C, and clang::OverloadCandidate::Conversions.

Referenced by clang::Sema::AddBuiltinCandidate(), and clang::Sema::AddMethodCandidate().

allocateConversionSequences()

ConversionSequenceList clang::OverloadCandidateSet::allocateConversionSequences ( unsigned  NumConversions )

inline

Allocate storage for conversion sequences for NumConversions conversions.

Definition at line 928 of file Overload.h.

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

begin()

iterator clang::OverloadCandidateSet::begin ( )

inline

Definition at line 919 of file Overload.h.

Referenced by mergeCandidatesWithResults(), and TryUserDefinedConversion().

BestViableFunction()

OverloadingResult OverloadCandidateSet::BestViableFunction	(	Sema &	S,
		SourceLocation	Loc,
		OverloadCandidateSet::iterator &	Best
	)

Find the best viable function on this overload set, if it exists.

Computes the best viable function (C++ 13.3.3) within an overload candidate set.

Parameters

Loc	The location of the function name (or operator symbol) for which overload resolution occurs.
Best	If overload resolution was successful or found a deleted function, Best points to the candidate function found.

Returns

The result of overload resolution.

Definition at line 9293 of file SemaOverload.cpp.

Referenced by clang::Sema::buildOverloadedCallSet(), FindConditionalOverload(), and IsInitializerListConstructorConversion().

clear()

void OverloadCandidateSet::clear

(

CandidateSetKind

CSK

)

Clear out all of the candidates.

Definition at line 851 of file SemaOverload.cpp.

Referenced by clang::Sema::BuildForRangeBeginEndCall(), clang::Sema::DeduceTemplateSpecializationFromInitializer(), IsInitializerListConstructorConversion(), IsUserDefinedConversion(), ResolveConstructorOverload(), TryRefInitWithConversionFunction(), and TryUserDefinedConversion().

empty()

bool clang::OverloadCandidateSet::empty ( ) const

inline

Definition at line 923 of file Overload.h.

Referenced by clang::Sema::buildOverloadedCallSet(), FinishOverloadedCallExpr(), mergeCandidatesWithResults(), and TryReferenceInitializationCore().

end()

iterator clang::OverloadCandidateSet::end ( )

inline

Definition at line 920 of file Overload.h.

Referenced by mergeCandidatesWithResults(), and TryUserDefinedConversion().

getKind()

CandidateSetKind clang::OverloadCandidateSet::getKind ( ) const

inline

Definition at line 906 of file Overload.h.

Referenced by clang::Sema::AddOverloadCandidate(), and mergeCandidatesWithResults().

getLocation()

SourceLocation clang::OverloadCandidateSet::getLocation ( ) const

inline

Definition at line 905 of file Overload.h.

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

isNewCandidate()

bool clang::OverloadCandidateSet::isNewCandidate ( Decl *  F )

inline

Determine when this overload candidate will be new to the overload set.

Definition at line 910 of file Overload.h.

References clang::CodeGen::clear(), and clang::Decl::getCanonicalDecl().

Referenced by clang::Sema::AddMethodCandidate(), and clang::Sema::AddOverloadCandidate().

NoteCandidates()

void OverloadCandidateSet::NoteCandidates	(	Sema &	S,
		OverloadCandidateDisplayKind	OCD,
		ArrayRef< Expr *>	Args,
		StringRef	Opc = "",
		SourceLocation	OpLoc = SourceLocation(),
		llvm::function_ref< bool(OverloadCandidate &)>	Filter = [](OverloadCandidate&) { return true; }
	)

When overload resolution fails, prints diagnostic messages containing the candidates in the candidate set.

Definition at line 10667 of file SemaOverload.cpp.

Referenced by CheckCXX98CompatAccessibleCopy(), CopyObject(), FinishOverloadedCallExpr(), and resolveAllocationOverload().

operator=()

OverloadCandidateSet& clang::OverloadCandidateSet::operator= ( const OverloadCandidateSet &  )

delete

size()

size_t clang::OverloadCandidateSet::size ( ) const

inline

Definition at line 922 of file Overload.h.

Referenced by CopyObject(), and IsInitializerListConstructorConversion().

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

• include/clang/Sema/Overload.h
• lib/Sema/SemaOverload.cpp