#include "TreeTransform.h"
#include "TypeLocBuilder.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/ASTLambda.h"
#include "clang/AST/Decl.h"
#include "clang/AST/DeclAccessPair.h"
#include "clang/AST/DeclBase.h"
#include "clang/AST/DeclCXX.h"
#include "clang/AST/DeclTemplate.h"
#include "clang/AST/DeclarationName.h"
#include "clang/AST/Expr.h"
#include "clang/AST/ExprCXX.h"
#include "clang/AST/NestedNameSpecifier.h"
#include "clang/AST/RecursiveASTVisitor.h"
#include "clang/AST/TemplateBase.h"
#include "clang/AST/TemplateName.h"
#include "clang/AST/Type.h"
#include "clang/AST/TypeLoc.h"
#include "clang/AST/UnresolvedSet.h"
#include "clang/Basic/AddressSpaces.h"
#include "clang/Basic/ExceptionSpecificationType.h"
#include "clang/Basic/LLVM.h"
#include "clang/Basic/LangOptions.h"
#include "clang/Basic/PartialDiagnostic.h"
#include "clang/Basic/SourceLocation.h"
#include "clang/Basic/Specifiers.h"
#include "clang/Sema/EnterExpressionEvaluationContext.h"
#include "clang/Sema/Ownership.h"
#include "clang/Sema/Sema.h"
#include "clang/Sema/Template.h"
#include "clang/Sema/TemplateDeduction.h"
#include "llvm/ADT/APInt.h"
#include "llvm/ADT/APSInt.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/FoldingSet.h"
#include "llvm/ADT/SmallBitVector.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/ErrorHandling.h"
#include <algorithm>
#include <cassert>
#include <optional>
#include <tuple>
#include <type_traits>
#include <utility>
#include "clang/AST/TypeNodes.inc"

Classes
struct	clang::DeducedPack
	A pack that we're currently deducing. More...

struct	IsPartialSpecialization< T >

struct	IsPartialSpecialization< ClassTemplatePartialSpecializationDecl >

struct	IsPartialSpecialization< VarTemplatePartialSpecializationDecl >

Namespaces
	clang
	The JSON file list parser is used to communicate input to InstallAPI.

Macros
#define	NON_CANONICAL_TYPE(Class, Base) case Type::Class: llvm_unreachable("deducing non-canonical type: " #Class);

#define	TYPE(Class, Base)

#define	TYPE(Class, Base)

#define	ABSTRACT_TYPE(Class, Base)

#define	DEPENDENT_TYPE(Class, Base)

#define	NON_CANONICAL_TYPE(Class, Base) case Type::Class:

Enumerations
enum	clang::TemplateDeductionFlags { clang::TDF_None = 0 , clang::TDF_ParamWithReferenceType = 0x1 , clang::TDF_IgnoreQualifiers = 0x02 , clang::TDF_DerivedClass = 0x04 , clang::TDF_SkipNonDependent = 0x08 , clang::TDF_TopLevelParameterTypeList = 0x10 , clang::TDF_AllowCompatibleFunctionType = 0x20 , clang::TDF_ArgWithReferenceType = 0x40 }
	Various flags that control template argument deduction. More...

enum class	PackFold { ParameterToArgument , ArgumentToParameter }

Functions
static bool	hasSameExtendedValue (llvm::APSInt X, llvm::APSInt Y)
	Compare two APSInts, extending and switching the sign as necessary to compare their values regardless of underlying type. More...

static TemplateDeductionResult	DeduceTemplateArgumentsByTypeMatch (Sema &S, TemplateParameterList *TemplateParams, QualType P, QualType A, TemplateDeductionInfo &Info, SmallVectorImpl< DeducedTemplateArgument > &Deduced, unsigned TDF, bool PartialOrdering, bool DeducedFromArrayBound)
	Deduce the template arguments by comparing the parameter type and the argument type (C++ [temp.deduct.type]). More...

static TemplateDeductionResult	DeduceTemplateArguments (Sema &S, TemplateParameterList *TemplateParams, ArrayRef< TemplateArgument > Ps, ArrayRef< TemplateArgument > As, TemplateDeductionInfo &Info, SmallVectorImpl< DeducedTemplateArgument > &Deduced, bool NumberOfArgumentsMustMatch, PackFold PackFold=PackFold::ParameterToArgument)

static void	MarkUsedTemplateParameters (ASTContext &Ctx, const TemplateArgument &TemplateArg, bool OnlyDeduced, unsigned Depth, llvm::SmallBitVector &Used)
	Mark the template parameters that are used by this template argument. More...

static void	MarkUsedTemplateParameters (ASTContext &Ctx, QualType T, bool OnlyDeduced, unsigned Depth, llvm::SmallBitVector &Used)
	Mark the template parameters that are used by the given type. More...

static const NonTypeTemplateParmDecl *	getDeducedParameterFromExpr (const Expr *E, unsigned Depth)
	If the given expression is of a form that permits the deduction of a non-type template parameter, return the declaration of that non-type template parameter. More...

static const NonTypeTemplateParmDecl *	getDeducedParameterFromExpr (TemplateDeductionInfo &Info, Expr *E)

static bool	isSameDeclaration (Decl X, Decl Y)
	Determine whether two declaration pointers refer to the same declaration. More...

static DeducedTemplateArgument	checkDeducedTemplateArguments (ASTContext &Context, const DeducedTemplateArgument &X, const DeducedTemplateArgument &Y, bool AggregateCandidateDeduction=false)
	Verify that the given, deduced template arguments are compatible. More...

static TemplateDeductionResult	DeduceNonTypeTemplateArgument (Sema &S, TemplateParameterList TemplateParams, const NonTypeTemplateParmDecl NTTP, const DeducedTemplateArgument &NewDeduced, QualType ValueType, TemplateDeductionInfo &Info, SmallVectorImpl< DeducedTemplateArgument > &Deduced)
	Deduce the value of the given non-type template parameter as the given deduced template argument. More...

static TemplateDeductionResult	DeduceNonTypeTemplateArgument (Sema &S, TemplateParameterList TemplateParams, const NonTypeTemplateParmDecl NTTP, const llvm::APSInt &Value, QualType ValueType, bool DeducedFromArrayBound, TemplateDeductionInfo &Info, SmallVectorImpl< DeducedTemplateArgument > &Deduced)
	Deduce the value of the given non-type template parameter from the given integral constant. More...

static TemplateDeductionResult	DeduceNullPtrTemplateArgument (Sema &S, TemplateParameterList TemplateParams, const NonTypeTemplateParmDecl NTTP, QualType NullPtrType, TemplateDeductionInfo &Info, SmallVectorImpl< DeducedTemplateArgument > &Deduced)
	Deduce the value of the given non-type template parameter from the given null pointer template argument type. More...

static TemplateDeductionResult	DeduceNonTypeTemplateArgument (Sema &S, TemplateParameterList TemplateParams, const NonTypeTemplateParmDecl NTTP, Expr *Value, TemplateDeductionInfo &Info, SmallVectorImpl< DeducedTemplateArgument > &Deduced)
	Deduce the value of the given non-type template parameter from the given type- or value-dependent expression. More...

static TemplateDeductionResult	DeduceNonTypeTemplateArgument (Sema &S, TemplateParameterList TemplateParams, const NonTypeTemplateParmDecl NTTP, ValueDecl *D, QualType T, TemplateDeductionInfo &Info, SmallVectorImpl< DeducedTemplateArgument > &Deduced)
	Deduce the value of the given non-type template parameter from the given declaration. More...

static NamedDecl *	getTemplateParameterWithDefault (Sema &S, NamedDecl *A, TemplateArgument Default)
	Create a shallow copy of a given template parameter declaration, with empty source locations and using the given TemplateArgument as it's default argument. More...

static TemplateDeductionResult	DeduceTemplateArguments (Sema &S, TemplateParameterList *TemplateParams, TemplateName Param, TemplateName Arg, TemplateDeductionInfo &Info, ArrayRef< TemplateArgument > DefaultArguments, SmallVectorImpl< DeducedTemplateArgument > &Deduced)

static TemplateDeductionResult	DeduceTemplateSpecArguments (Sema &S, TemplateParameterList *TemplateParams, const QualType P, QualType A, TemplateDeductionInfo &Info, SmallVectorImpl< DeducedTemplateArgument > &Deduced)
	Deduce the template arguments by comparing the template parameter type (which is a template-id) with the template argument type. More...

static bool	IsPossiblyOpaquelyQualifiedTypeInternal (const Type *T)

static bool	IsPossiblyOpaquelyQualifiedType (QualType T)
	Determines whether the given type is an opaque type that might be more qualified when instantiated. More...

static TemplateParameter	makeTemplateParameter (Decl *D)
	Helper function to build a TemplateParameter when we don't know its type statically. More...

static TemplateDeductionResult	DeduceTemplateArguments (Sema &S, TemplateParameterList TemplateParams, const QualType Params, unsigned NumParams, const QualType *Args, unsigned NumArgs, TemplateDeductionInfo &Info, SmallVectorImpl< DeducedTemplateArgument > &Deduced, unsigned TDF, bool PartialOrdering=false)
	Deduce the template arguments by comparing the list of parameter types to the list of argument types, as in the parameter-type-lists of function types (C++ [temp.deduct.type]p10). More...

static bool	hasInconsistentOrSupersetQualifiersOf (QualType ParamType, QualType ArgType)
	Determine whether the parameter has qualifiers that the argument lacks. More...

static unsigned	getFirstInnerIndex (FunctionTemplateDecl *FTD)
	Get the index of the first template parameter that was originally from the innermost template-parameter-list. More...

static bool	isForwardingReference (QualType Param, unsigned FirstInnerIndex)
	Determine whether a type denotes a forwarding reference. More...

static CXXRecordDecl *	getCanonicalRD (QualType T)

static TemplateDeductionResult	DeduceTemplateBases (Sema &S, const CXXRecordDecl RD, TemplateParameterList TemplateParams, QualType P, TemplateDeductionInfo &Info, SmallVectorImpl< DeducedTemplateArgument > &Deduced)
	Attempt to deduce the template arguments by checking the base types according to (C++20 [temp.deduct.call] p4b3. More...

static TemplateDeductionResult	DeduceTemplateArguments (Sema &S, TemplateParameterList *TemplateParams, const TemplateArgument &P, TemplateArgument A, TemplateDeductionInfo &Info, SmallVectorImpl< DeducedTemplateArgument > &Deduced)

static bool	hasTemplateArgumentForDeduction (ArrayRef< TemplateArgument > &Args, unsigned &ArgIdx)
	Determine whether there is a template argument to be used for deduction. More...

static bool	hasPackExpansionBeforeEnd (ArrayRef< TemplateArgument > Args)
	Determine whether the given set of template arguments has a pack expansion that is not the last template argument. More...

static bool	isSameTemplateArg (ASTContext &Context, TemplateArgument X, const TemplateArgument &Y, bool PartialOrdering, bool PackExpansionMatchesPack=false)
	Determine whether two template arguments are the same. More...

static bool	ConvertDeducedTemplateArgument (Sema &S, NamedDecl Param, DeducedTemplateArgument Arg, NamedDecl Template, TemplateDeductionInfo &Info, bool IsDeduced, SmallVectorImpl< TemplateArgument > &SugaredOutput, SmallVectorImpl< TemplateArgument > &CanonicalOutput)
	Convert the given deduced template argument and add it to the set of fully-converted template arguments. More...

template<typename TemplateDeclT >
static TemplateDeductionResult	ConvertDeducedTemplateArguments (Sema &S, TemplateDeclT Template, bool IsDeduced, SmallVectorImpl< DeducedTemplateArgument > &Deduced, TemplateDeductionInfo &Info, SmallVectorImpl< TemplateArgument > &SugaredBuilder, SmallVectorImpl< TemplateArgument > &CanonicalBuilder, LocalInstantiationScope CurrentInstantiationScope=nullptr, unsigned NumAlreadyConverted=0, bool PartialOverloading=false)

static DeclContext *	getAsDeclContextOrEnclosing (Decl *D)

template<typename TemplateDeclT >
static bool	DeducedArgsNeedReplacement (TemplateDeclT *Template)

template<>
bool	DeducedArgsNeedReplacement< VarTemplatePartialSpecializationDecl > (VarTemplatePartialSpecializationDecl *Spec)

template<>
bool	DeducedArgsNeedReplacement< ClassTemplatePartialSpecializationDecl > (ClassTemplatePartialSpecializationDecl *Spec)

template<typename TemplateDeclT >
static TemplateDeductionResult	CheckDeducedArgumentConstraints (Sema &S, TemplateDeclT *Template, ArrayRef< TemplateArgument > SugaredDeducedArgs, ArrayRef< TemplateArgument > CanonicalDeducedArgs, TemplateDeductionInfo &Info)

template<typename T >
static std::enable_if_t< IsPartialSpecialization< T >::value, TemplateDeductionResult >	FinishTemplateArgumentDeduction (Sema &S, T *Partial, bool IsPartialOrdering, ArrayRef< TemplateArgument > TemplateArgs, SmallVectorImpl< DeducedTemplateArgument > &Deduced, TemplateDeductionInfo &Info)
	Complete template argument deduction for a partial specialization. More...

static TemplateDeductionResult	FinishTemplateArgumentDeduction (Sema &S, TemplateDecl *Template, bool PartialOrdering, ArrayRef< TemplateArgument > TemplateArgs, SmallVectorImpl< DeducedTemplateArgument > &Deduced, TemplateDeductionInfo &Info)
	Complete template argument deduction for a class or variable template, when partial ordering against a partial specialization. More...

static TemplateDeductionResult	FinishTemplateArgumentDeduction (Sema &S, TemplateDecl *TD, SmallVectorImpl< DeducedTemplateArgument > &Deduced, TemplateDeductionInfo &Info)
	Complete template argument deduction for DeduceTemplateArgumentsFromType. More...

template<typename T >
static std::enable_if_t< IsPartialSpecialization< T >::value, TemplateDeductionResult >	DeduceTemplateArguments (Sema &S, T *Partial, ArrayRef< TemplateArgument > TemplateArgs, TemplateDeductionInfo &Info)
	Perform template argument deduction to determine whether the given template arguments match the given class or variable template partial specialization per C++ [temp.class.spec.match]. More...

static bool	isSimpleTemplateIdType (QualType T)
	Determine whether the given type T is a simple-template-id type. More...

static TemplateDeductionResult	CheckOriginalCallArgDeduction (Sema &S, TemplateDeductionInfo &Info, Sema::OriginalCallArg OriginalArg, QualType DeducedA)
	Check whether the deduced argument type for a call to a function template matches the actual argument type per C++ [temp.deduct.call]p4. More...

static unsigned	getPackIndexForParam (Sema &S, FunctionTemplateDecl *FunctionTemplate, const MultiLevelTemplateArgumentList &Args, unsigned ParamIdx)
	Find the pack index for a particular parameter index in an instantiation of a function template with specific arguments. More...

static TemplateDeductionResult	instantiateExplicitSpecifierDeferred (Sema &S, FunctionDecl Specialization, const MultiLevelTemplateArgumentList &SubstArgs, TemplateDeductionInfo &Info, FunctionTemplateDecl FunctionTemplate, ArrayRef< TemplateArgument > DeducedArgs)

static QualType	GetTypeOfFunction (Sema &S, const OverloadExpr::FindResult &R, FunctionDecl *Fn)
	Gets the type of a function for template-argument-deducton purposes when it's considered as part of an overload set. More...

static QualType	ResolveOverloadForDeduction (Sema &S, TemplateParameterList TemplateParams, Expr Arg, QualType ParamType, bool ParamWasReference, TemplateSpecCandidateSet *FailedTSC=nullptr)
	Apply the deduction rules for overload sets. More...

static bool	AdjustFunctionParmAndArgTypesForDeduction (Sema &S, TemplateParameterList TemplateParams, unsigned FirstInnerIndex, QualType &ParamType, QualType &ArgType, Expr::Classification ArgClassification, Expr Arg, unsigned &TDF, TemplateSpecCandidateSet *FailedTSC=nullptr)
	Perform the adjustments to the parameter and argument types described in C++ [temp.deduct.call]. More...

static bool	hasDeducibleTemplateParameters (Sema &S, FunctionTemplateDecl *FunctionTemplate, QualType T)

static TemplateDeductionResult	DeduceTemplateArgumentsFromCallArgument (Sema &S, TemplateParameterList TemplateParams, unsigned FirstInnerIndex, QualType ParamType, QualType ArgType, Expr::Classification ArgClassification, Expr Arg, TemplateDeductionInfo &Info, SmallVectorImpl< DeducedTemplateArgument > &Deduced, SmallVectorImpl< Sema::OriginalCallArg > &OriginalCallArgs, bool DecomposedParam, unsigned ArgIdx, unsigned TDF, TemplateSpecCandidateSet *FailedTSC)
	Perform template argument deduction per [temp.deduct.call] for a single parameter / argument pair. More...

static TemplateDeductionResult	DeduceFromInitializerList (Sema &S, TemplateParameterList TemplateParams, QualType AdjustedParamType, InitListExpr ILE, TemplateDeductionInfo &Info, SmallVectorImpl< DeducedTemplateArgument > &Deduced, SmallVectorImpl< Sema::OriginalCallArg > &OriginalCallArgs, unsigned ArgIdx, unsigned TDF)
	Attempt template argument deduction from an initializer list deemed to be an argument in a function call. More...

static bool	CheckDeducedPlaceholderConstraints (Sema &S, const AutoType &Type, AutoTypeLoc TypeLoc, QualType Deduced)

static QualType	GetImplicitObjectParameterType (ASTContext &Context, const CXXMethodDecl *Method, QualType RawType, bool IsOtherRvr)

static bool	isAtLeastAsSpecializedAs (Sema &S, SourceLocation Loc, const FunctionTemplateDecl FT1, const FunctionTemplateDecl FT2, TemplatePartialOrderingContext TPOC, bool Reversed, const SmallVector< QualType > &Args1, const SmallVector< QualType > &Args2)
	Determine whether the function template `FT1` is at least as specialized as `FT2`. More...

static bool	isSameTemplate (TemplateDecl T1, TemplateDecl T2)
	Determine if the two templates are equivalent. More...

template<typename TemplateLikeDecl >
static bool	isAtLeastAsSpecializedAs (Sema &S, QualType T1, QualType T2, TemplateLikeDecl *P2, TemplateDeductionInfo &Info)
	Determine whether one partial specialization, P1, is at least as specialized than another, P2. More...

template<typename TemplateLikeDecl , typename PrimaryDel >
static TemplateLikeDecl *	getMoreSpecialized (Sema &S, QualType T1, QualType T2, TemplateLikeDecl P1, PrimaryDel P2, TemplateDeductionInfo &Info)
	Returns the more specialized template specialization between T1/P1 and T2/P2. More...

static void	MarkUsedTemplateParameters (ASTContext &Ctx, const Expr *E, bool OnlyDeduced, unsigned Depth, llvm::SmallBitVector &Used)
	Mark the template parameters that are used by the given expression. More...

static void	MarkUsedTemplateParameters (ASTContext &Ctx, NestedNameSpecifier *NNS, bool OnlyDeduced, unsigned Depth, llvm::SmallBitVector &Used)
	Mark the template parameters that are used by the given nested name specifier. More...

static void	MarkUsedTemplateParameters (ASTContext &Ctx, TemplateName Name, bool OnlyDeduced, unsigned Depth, llvm::SmallBitVector &Used)
	Mark the template parameters that are used by the given template name. More...

Macro Definition Documentation

◆ ABSTRACT_TYPE

#define ABSTRACT_TYPE	(	Class,
		Base
	)

◆ DEPENDENT_TYPE

#define DEPENDENT_TYPE	(	Class,
		Base
	)

◆ NON_CANONICAL_TYPE [1/2]

#define NON_CANONICAL_TYPE	(	Class,
		Base
	)	case Type::Class: llvm_unreachable("deducing non-canonical type: " #Class);

◆ NON_CANONICAL_TYPE [2/2]

#define NON_CANONICAL_TYPE	(	Class,
		Base
	)	case Type::Class:

◆ TYPE [1/2]

#define TYPE	(	Class,
		Base
	)

◆ TYPE [2/2]

#define TYPE	(	Class,
		Base
	)

Enumeration Type Documentation

◆ PackFold

enum PackFold

strong

Enumerator
ParameterToArgument
ArgumentToParameter

Definition at line 142 of file SemaTemplateDeduction.cpp.

Function Documentation

◆ AdjustFunctionParmAndArgTypesForDeduction()

static bool AdjustFunctionParmAndArgTypesForDeduction	(	Sema &	S,
		TemplateParameterList *	TemplateParams,
		unsigned	FirstInnerIndex,
		QualType &	ParamType,
		QualType &	ArgType,
		Expr::Classification	ArgClassification,
		Expr *	Arg,
		unsigned &	TDF,
		TemplateSpecCandidateSet *	FailedTSC = `nullptr`
	)

static

Perform the adjustments to the parameter and argument types described in C++ [temp.deduct.call].

Returns: true if the caller should not attempt to perform any template argument deduction based on this P/A pair because the argument is an overloaded function set that could not be resolved.

Definition at line 4165 of file SemaTemplateDeduction.cpp.

◆ CheckDeducedArgumentConstraints()

template<typename TemplateDeclT >

static TemplateDeductionResult CheckDeducedArgumentConstraints	(	Sema &	S,
		TemplateDeclT *	Template,
		ArrayRef< TemplateArgument >	SugaredDeducedArgs,
		ArrayRef< TemplateArgument >	CanonicalDeducedArgs,
		TemplateDeductionInfo &	Info
	)

static

Definition at line 3062 of file SemaTemplateDeduction.cpp.

◆ CheckDeducedPlaceholderConstraints()

static bool CheckDeducedPlaceholderConstraints	(	Sema &	S,
		const AutoType &	Type,
		AutoTypeLoc	TypeLoc,
		QualType	Deduced
	)

static

Definition at line 5083 of file SemaTemplateDeduction.cpp.

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

◆ checkDeducedTemplateArguments()

static DeducedTemplateArgument checkDeducedTemplateArguments	(	ASTContext &	Context,
		const DeducedTemplateArgument &	X,
		const DeducedTemplateArgument &	Y,
		bool	AggregateCandidateDeduction = `false`
	)

static

Verify that the given, deduced template arguments are compatible.

Returns: The deduced template argument, or a NULL template argument if the deduced template arguments were incompatible.

Definition at line 215 of file SemaTemplateDeduction.cpp.

◆ CheckOriginalCallArgDeduction()

static TemplateDeductionResult CheckOriginalCallArgDeduction	(	Sema &	S,
		TemplateDeductionInfo &	Info,
		Sema::OriginalCallArg	OriginalArg,
		QualType	DeducedA
	)

static

Check whether the deduced argument type for a call to a function template matches the actual argument type per C++ [temp.deduct.call]p4.

Definition at line 3635 of file SemaTemplateDeduction.cpp.

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

◆ ConvertDeducedTemplateArgument()

static bool ConvertDeducedTemplateArgument	(	Sema &	S,
		NamedDecl *	Param,
		DeducedTemplateArgument	Arg,
		NamedDecl *	Template,
		TemplateDeductionInfo &	Info,
		bool	IsDeduced,
		SmallVectorImpl< TemplateArgument > &	SugaredOutput,
		SmallVectorImpl< TemplateArgument > &	CanonicalOutput
	)

static

Convert the given deduced template argument and add it to the set of fully-converted template arguments.

Definition at line 2812 of file SemaTemplateDeduction.cpp.

◆ ConvertDeducedTemplateArguments()

template<typename TemplateDeclT >

static TemplateDeductionResult ConvertDeducedTemplateArguments	(	Sema &	S,
		TemplateDeclT *	Template,
		bool	IsDeduced,
		SmallVectorImpl< DeducedTemplateArgument > &	Deduced,
		TemplateDeductionInfo &	Info,
		SmallVectorImpl< TemplateArgument > &	SugaredBuilder,
		SmallVectorImpl< TemplateArgument > &	CanonicalBuilder,
		LocalInstantiationScope *	CurrentInstantiationScope = `nullptr`,
		unsigned	NumAlreadyConverted = `0`,
		bool	PartialOverloading = `false`
	)

static

Definition at line 2907 of file SemaTemplateDeduction.cpp.

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

◆ DeducedArgsNeedReplacement()

template<typename TemplateDeclT >

static bool DeducedArgsNeedReplacement ( TemplateDeclT * Template )

static

Definition at line 3046 of file SemaTemplateDeduction.cpp.

◆ DeducedArgsNeedReplacement< ClassTemplatePartialSpecializationDecl >()

template<>

bool DeducedArgsNeedReplacement< ClassTemplatePartialSpecializationDecl > ( ClassTemplatePartialSpecializationDecl * Spec )

Definition at line 3055 of file SemaTemplateDeduction.cpp.

References clang::ClassTemplateSpecializationDecl::isClassScopeExplicitSpecialization().

◆ DeducedArgsNeedReplacement< VarTemplatePartialSpecializationDecl >()

template<>

bool DeducedArgsNeedReplacement< VarTemplatePartialSpecializationDecl > ( VarTemplatePartialSpecializationDecl * Spec )

Definition at line 3050 of file SemaTemplateDeduction.cpp.

References clang::VarTemplateSpecializationDecl::isClassScopeExplicitSpecialization().

◆ DeduceFromInitializerList()

static TemplateDeductionResult DeduceFromInitializerList	(	Sema &	S,
		TemplateParameterList *	TemplateParams,
		QualType	AdjustedParamType,
		InitListExpr *	ILE,
		TemplateDeductionInfo &	Info,
		SmallVectorImpl< DeducedTemplateArgument > &	Deduced,
		SmallVectorImpl< Sema::OriginalCallArg > &	OriginalCallArgs,
		unsigned	ArgIdx,
		unsigned	TDF
	)

static

Attempt template argument deduction from an initializer list deemed to be an argument in a function call.

Definition at line 4275 of file SemaTemplateDeduction.cpp.

◆ DeduceNonTypeTemplateArgument() [1/4]

static TemplateDeductionResult DeduceNonTypeTemplateArgument	(	Sema &	S,
		TemplateParameterList *	TemplateParams,
		const NonTypeTemplateParmDecl *	NTTP,
		const DeducedTemplateArgument &	NewDeduced,
		QualType	ValueType,
		TemplateDeductionInfo &	Info,
		SmallVectorImpl< DeducedTemplateArgument > &	Deduced
	)

static

Deduce the value of the given non-type template parameter as the given deduced template argument.

All non-type template parameter deduction is funneled through here.

Definition at line 398 of file SemaTemplateDeduction.cpp.

◆ DeduceNonTypeTemplateArgument() [2/4]

static TemplateDeductionResult DeduceNonTypeTemplateArgument	(	Sema &	S,
		TemplateParameterList *	TemplateParams,
		const NonTypeTemplateParmDecl *	NTTP,
		const llvm::APSInt &	Value,
		QualType	ValueType,
		bool	DeducedFromArrayBound,
		TemplateDeductionInfo &	Info,
		SmallVectorImpl< DeducedTemplateArgument > &	Deduced
	)

static

Deduce the value of the given non-type template parameter from the given integral constant.

Definition at line 452 of file SemaTemplateDeduction.cpp.

◆ DeduceNonTypeTemplateArgument() [3/4]

static TemplateDeductionResult DeduceNonTypeTemplateArgument	(	Sema &	S,
		TemplateParameterList *	TemplateParams,
		const NonTypeTemplateParmDecl *	NTTP,
		Expr *	Value,
		TemplateDeductionInfo &	Info,
		SmallVectorImpl< DeducedTemplateArgument > &	Deduced
	)

static

Deduce the value of the given non-type template parameter from the given type- or value-dependent expression.

Returns: true if deduction succeeded, false otherwise.

Definition at line 487 of file SemaTemplateDeduction.cpp.

◆ DeduceNonTypeTemplateArgument() [4/4]

static TemplateDeductionResult DeduceNonTypeTemplateArgument	(	Sema &	S,
		TemplateParameterList *	TemplateParams,
		const NonTypeTemplateParmDecl *	NTTP,
		ValueDecl *	D,
		QualType	T,
		TemplateDeductionInfo &	Info,
		SmallVectorImpl< DeducedTemplateArgument > &	Deduced
	)

static

Deduce the value of the given non-type template parameter from the given declaration.

Returns: true if deduction succeeded, false otherwise.

Definition at line 501 of file SemaTemplateDeduction.cpp.

◆ DeduceNullPtrTemplateArgument()

static TemplateDeductionResult DeduceNullPtrTemplateArgument	(	Sema &	S,
		TemplateParameterList *	TemplateParams,
		const NonTypeTemplateParmDecl *	NTTP,
		QualType	NullPtrType,
		TemplateDeductionInfo &	Info,
		SmallVectorImpl< DeducedTemplateArgument > &	Deduced
	)

static

Deduce the value of the given non-type template parameter from the given null pointer template argument type.

Definition at line 466 of file SemaTemplateDeduction.cpp.

◆ DeduceTemplateArguments() [1/5]

template<typename T >

static std::enable_if_t<IsPartialSpecialization<T>::value, TemplateDeductionResult> DeduceTemplateArguments	(	Sema &	S,
		T *	Partial,
		ArrayRef< TemplateArgument >	TemplateArgs,
		TemplateDeductionInfo &	Info
	)

static

Perform template argument deduction to determine whether the given template arguments match the given class or variable template partial specialization per C++ [temp.class.spec.match].

Definition at line 3287 of file SemaTemplateDeduction.cpp.

◆ DeduceTemplateArguments() [2/5]

static TemplateDeductionResult DeduceTemplateArguments	(	Sema &	S,
		TemplateParameterList *	TemplateParams,
		ArrayRef< TemplateArgument >	Ps,
		ArrayRef< TemplateArgument >	As,
		TemplateDeductionInfo &	Info,
		SmallVectorImpl< DeducedTemplateArgument > &	Deduced,
		bool	NumberOfArgumentsMustMatch,
		PackFold	PackFold = `PackFold::ParameterToArgument`
	)

static

Definition at line 2546 of file SemaTemplateDeduction.cpp.

Referenced by clang::Sema::CheckVarTemplateId(), and clang::Sema::DeduceTemplateArguments().

◆ DeduceTemplateArguments() [3/5]

static TemplateDeductionResult DeduceTemplateArguments	(	Sema &	S,
		TemplateParameterList *	TemplateParams,
		const QualType *	Params,
		unsigned	NumParams,
		const QualType *	Args,
		unsigned	NumArgs,
		TemplateDeductionInfo &	Info,
		SmallVectorImpl< DeducedTemplateArgument > &	Deduced,
		unsigned	TDF,
		bool	PartialOrdering = `false`
	)

static

Deduce the template arguments by comparing the list of parameter types to the list of argument types, as in the parameter-type-lists of function types (C++ [temp.deduct.type]p10).

Parameters

S	The semantic analysis object within which we are deducing
TemplateParams	The template parameters that we are deducing
Params	The list of parameter types
NumParams	The number of types in `Params`
Args	The list of argument types
NumArgs	The number of types in `Args`
Info	information about the template argument deduction itself
Deduced	the deduced template arguments
TDF	bitwise OR of the TemplateDeductionFlags bits that describe how template argument deduction is performed.
PartialOrdering	If true, we are performing template argument deduction for during partial ordering for a call (C++0x [temp.deduct.partial]).

Returns: the result of template argument deduction so far. Note that a "success" result means that template argument deduction has not yet failed, but it may still fail, later, for other reasons.

Definition at line 1160 of file SemaTemplateDeduction.cpp.

◆ DeduceTemplateArguments() [4/5]

static TemplateDeductionResult DeduceTemplateArguments	(	Sema &	S,
		TemplateParameterList *	TemplateParams,
		const TemplateArgument &	P,
		TemplateArgument	A,
		TemplateDeductionInfo &	Info,
		SmallVectorImpl< DeducedTemplateArgument > &	Deduced
	)

static

Definition at line 2391 of file SemaTemplateDeduction.cpp.

◆ DeduceTemplateArguments() [5/5]

static TemplateDeductionResult DeduceTemplateArguments	(	Sema &	S,
		TemplateParameterList *	TemplateParams,
		TemplateName	Param,
		TemplateName	Arg,
		TemplateDeductionInfo &	Info,
		ArrayRef< TemplateArgument >	DefaultArguments,
		SmallVectorImpl< DeducedTemplateArgument > &	Deduced
	)

static

Definition at line 568 of file SemaTemplateDeduction.cpp.

◆ DeduceTemplateArgumentsByTypeMatch()

static TemplateDeductionResult DeduceTemplateArgumentsByTypeMatch	(	Sema &	S,
		TemplateParameterList *	TemplateParams,
		QualType	P,
		QualType	A,
		TemplateDeductionInfo &	Info,
		SmallVectorImpl< DeducedTemplateArgument > &	Deduced,
		unsigned	TDF,
		bool	PartialOrdering,
		bool	DeducedFromArrayBound
	)

static

Deduce the template arguments by comparing the parameter type and the argument type (C++ [temp.deduct.type]).

Parameters

S	the semantic analysis object within which we are deducing
TemplateParams	the template parameters that we are deducing
P	the parameter type
A	the argument type
Info	information about the template argument deduction itself
Deduced	the deduced template arguments
TDF	bitwise OR of the TemplateDeductionFlags bits that describe how template argument deduction is performed.
PartialOrdering	Whether we're performing template argument deduction in the context of partial ordering (C++0x [temp.deduct.partial]).

Returns: the result of template argument deduction so far. Note that a "success" result means that template argument deduction has not yet failed, but it may still fail, later, for other reasons.

Definition at line 1500 of file SemaTemplateDeduction.cpp.

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

◆ DeduceTemplateArgumentsFromCallArgument()

static TemplateDeductionResult DeduceTemplateArgumentsFromCallArgument	(	Sema &	S,
		TemplateParameterList *	TemplateParams,
		unsigned	FirstInnerIndex,
		QualType	ParamType,
		QualType	ArgType,
		Expr::Classification	ArgClassification,
		Expr *	Arg,
		TemplateDeductionInfo &	Info,
		SmallVectorImpl< DeducedTemplateArgument > &	Deduced,
		SmallVectorImpl< Sema::OriginalCallArg > &	OriginalCallArgs,
		bool	DecomposedParam,
		unsigned	ArgIdx,
		unsigned	TDF,
		TemplateSpecCandidateSet *	FailedTSC = `nullptr`
	)

static

Perform template argument deduction per [temp.deduct.call] for a single parameter / argument pair.

Definition at line 4345 of file SemaTemplateDeduction.cpp.

Referenced by clang::Sema::DeduceAutoType(), and clang::Sema::DeduceTemplateArguments().

◆ DeduceTemplateBases()

static TemplateDeductionResult DeduceTemplateBases	(	Sema &	S,
		const CXXRecordDecl *	RD,
		TemplateParameterList *	TemplateParams,
		QualType	P,
		TemplateDeductionInfo &	Info,
		SmallVectorImpl< DeducedTemplateArgument > &	Deduced
	)

static

Attempt to deduce the template arguments by checking the base types according to (C++20 [temp.deduct.call] p4b3.

Parameters

S	the semantic analysis object within which we are deducing.
RD	the top level record object we are deducing against.
TemplateParams	the template parameters that we are deducing.
P	the template specialization parameter type.
Info	information about the template argument deduction itself.
Deduced	the deduced template arguments.

Returns: the result of template argument deduction with the bases. "invalid" means no matches, "success" found a single item, and the "MiscellaneousDeductionFailure" result happens when the match is ambiguous.

Definition at line 1381 of file SemaTemplateDeduction.cpp.

◆ DeduceTemplateSpecArguments()

static TemplateDeductionResult DeduceTemplateSpecArguments	(	Sema &	S,
		TemplateParameterList *	TemplateParams,
		const QualType	P,
		QualType	A,
		TemplateDeductionInfo &	Info,
		SmallVectorImpl< DeducedTemplateArgument > &	Deduced
	)

static

Deduce the template arguments by comparing the template parameter type (which is a template-id) with the template argument type.

Parameters

S	the Sema
TemplateParams	the template parameters that we are deducing
P	the parameter type
A	the argument type
Info	information about the template argument deduction itself
Deduced	the deduced template arguments

Returns: the result of template argument deduction so far. Note that a "success" result means that template argument deduction has not yet failed, but it may still fail, later, for other reasons.

Definition at line 662 of file SemaTemplateDeduction.cpp.

◆ FinishTemplateArgumentDeduction() [1/3]

template<typename T >

static std::enable_if_t<IsPartialSpecialization<T>::value, TemplateDeductionResult> FinishTemplateArgumentDeduction	(	Sema &	S,
		T *	Partial,
		bool	IsPartialOrdering,
		ArrayRef< TemplateArgument >	TemplateArgs,
		SmallVectorImpl< DeducedTemplateArgument > &	Deduced,
		TemplateDeductionInfo &	Info
	)

static

Complete template argument deduction for a partial specialization.

Definition at line 3103 of file SemaTemplateDeduction.cpp.

◆ FinishTemplateArgumentDeduction() [2/3]

static TemplateDeductionResult FinishTemplateArgumentDeduction	(	Sema &	S,
		TemplateDecl *	TD,
		SmallVectorImpl< DeducedTemplateArgument > &	Deduced,
		TemplateDeductionInfo &	Info
	)

static

Complete template argument deduction for DeduceTemplateArgumentsFromType.

FIXME: this is mostly duplicated with the above two versions. Deduplicate the three implementations.

Definition at line 3249 of file SemaTemplateDeduction.cpp.

◆ FinishTemplateArgumentDeduction() [3/3]

static TemplateDeductionResult FinishTemplateArgumentDeduction	(	Sema &	S,
		TemplateDecl *	Template,
		bool	PartialOrdering,
		ArrayRef< TemplateArgument >	TemplateArgs,
		SmallVectorImpl< DeducedTemplateArgument > &	Deduced,
		TemplateDeductionInfo &	Info
	)

static

Complete template argument deduction for a class or variable template, when partial ordering against a partial specialization.

Definition at line 3199 of file SemaTemplateDeduction.cpp.

◆ getAsDeclContextOrEnclosing()

static DeclContext* getAsDeclContextOrEnclosing ( Decl * D )

static

Definition at line 3028 of file SemaTemplateDeduction.cpp.

References clang::Decl::getDeclContext().

◆ getCanonicalRD()

static CXXRecordDecl* getCanonicalRD ( QualType T )

static

Definition at line 1357 of file SemaTemplateDeduction.cpp.

References clang::Type::castAs(), clang::TagDecl::getCanonicalDecl(), clang::RecordType::getDecl(), and clang::T.

◆ getDeducedParameterFromExpr() [1/2]

static const NonTypeTemplateParmDecl* getDeducedParameterFromExpr	(	const Expr *	E,
		unsigned	Depth
	)

static

If the given expression is of a form that permits the deduction of a non-type template parameter, return the declaration of that non-type template parameter.

Definition at line 165 of file SemaTemplateDeduction.cpp.

References Depth.

Referenced by getDeducedParameterFromExpr(), and MarkUsedTemplateParameters().

◆ getDeducedParameterFromExpr() [2/2]

static const NonTypeTemplateParmDecl* getDeducedParameterFromExpr	(	TemplateDeductionInfo &	Info,
		Expr *	E
	)

static

Definition at line 195 of file SemaTemplateDeduction.cpp.

References clang::sema::TemplateDeductionInfo::getDeducedDepth(), and getDeducedParameterFromExpr().

◆ getFirstInnerIndex()

static unsigned getFirstInnerIndex ( FunctionTemplateDecl * FTD )

static

Get the index of the first template parameter that was originally from the innermost template-parameter-list.

This is 0 except when we concatenate the template parameter lists of a class template and a constructor template when forming an implicit deduction guide.

Definition at line 1335 of file SemaTemplateDeduction.cpp.

References clang::FunctionTemplateDecl::getTemplatedDecl().

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

◆ GetImplicitObjectParameterType()

static QualType GetImplicitObjectParameterType	(	ASTContext &	Context,
		const CXXMethodDecl *	Method,
		QualType	RawType,
		bool	IsOtherRvr
	)

static

Definition at line 5480 of file SemaTemplateDeduction.cpp.

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

◆ getMoreSpecialized()

template<typename TemplateLikeDecl , typename PrimaryDel >

static TemplateLikeDecl* getMoreSpecialized	(	Sema &	S,
		QualType	T1,
		QualType	T2,
		TemplateLikeDecl *	P1,
		PrimaryDel *	P2,
		TemplateDeductionInfo &	Info
	)

static

Returns the more specialized template specialization between T1/P1 and T2/P2.

If IsMoreSpecialThanPrimaryCheck is true, T1/P1 is the partial specialization and T2/P2 is the primary template.
otherwise, both T1/P1 and T2/P2 are the partial specialization.

Parameters

T1	the type of the first template partial specialization
T2	if IsMoreSpecialThanPrimaryCheck is true, the type of the second template partial specialization; otherwise, the type of the primary template.
P1	the first template partial specialization
P2	if IsMoreSpecialThanPrimaryCheck is true, the second template partial specialization; otherwise, the primary template.

Returns

- If IsMoreSpecialThanPrimaryCheck is true, returns P1 if P1 is more specialized, returns nullptr if P1 is not more specialized.

otherwise, returns the more specialized template partial specialization. If neither partial specialization is more specialized, returns NULL.

Definition at line 6158 of file SemaTemplateDeduction.cpp.

Referenced by clang::Sema::getMoreSpecializedPartialSpecialization(), and clang::Sema::isMoreSpecializedThanPrimary().

◆ getPackIndexForParam()

static unsigned getPackIndexForParam	(	Sema &	S,
		FunctionTemplateDecl *	FunctionTemplate,
		const MultiLevelTemplateArgumentList &	Args,
		unsigned	ParamIdx
	)

static

Find the pack index for a particular parameter index in an instantiation of a function template with specific arguments.

Returns: The pack index for whichever pack produced this parameter, or -1 if this was not produced by a parameter. Intended to be used as the ArgumentPackSubstitutionIndex for further substitutions.

Definition at line 3757 of file SemaTemplateDeduction.cpp.

◆ getTemplateParameterWithDefault()

static NamedDecl* getTemplateParameterWithDefault	(	Sema &	S,
		NamedDecl *	A,
		TemplateArgument	Default
	)

static

Create a shallow copy of a given template parameter declaration, with empty source locations and using the given TemplateArgument as it's default argument.

Returns: The new template parameter declaration.

Definition at line 517 of file SemaTemplateDeduction.cpp.

◆ GetTypeOfFunction()

static QualType GetTypeOfFunction	(	Sema &	S,
		const OverloadExpr::FindResult &	R,
		FunctionDecl *	Fn
	)

static

Gets the type of a function for template-argument-deducton purposes when it's considered as part of an overload set.

Definition at line 4029 of file SemaTemplateDeduction.cpp.

◆ hasDeducibleTemplateParameters()

bool hasDeducibleTemplateParameters	(	Sema &	S,
		FunctionTemplateDecl *	FunctionTemplate,
		QualType	T
	)

static

Definition at line 6923 of file SemaTemplateDeduction.cpp.

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

◆ hasInconsistentOrSupersetQualifiersOf()

static bool hasInconsistentOrSupersetQualifiersOf	(	QualType	ParamType,
		QualType	ArgType
	)

static

Determine whether the parameter has qualifiers that the argument lacks.

Put another way, determine whether there is no way to add a deduced set of qualifiers to the ParamType that would result in its qualifiers matching those of the ArgType.

Definition at line 1281 of file SemaTemplateDeduction.cpp.

References clang::Qualifiers::getAddressSpace(), clang::Qualifiers::getCVRQualifiers(), clang::Qualifiers::getObjCGCAttr(), clang::Qualifiers::getObjCLifetime(), clang::QualType::getQualifiers(), clang::Qualifiers::hasAddressSpace(), clang::Qualifiers::hasObjCGCAttr(), and clang::Qualifiers::hasObjCLifetime().

◆ hasPackExpansionBeforeEnd()

static bool hasPackExpansionBeforeEnd ( ArrayRef< TemplateArgument > Args )

static

Determine whether the given set of template arguments has a pack expansion that is not the last template argument.

Definition at line 2527 of file SemaTemplateDeduction.cpp.

References clang::TemplateArgument::Pack.

Referenced by MarkUsedTemplateParameters(), and clang::Sema::MarkUsedTemplateParameters().

◆ hasSameExtendedValue()

static bool hasSameExtendedValue	(	llvm::APSInt	X,
		llvm::APSInt	Y
	)

static

Compare two APSInts, extending and switching the sign as necessary to compare their values regardless of underlying type.

Definition at line 117 of file SemaTemplateDeduction.cpp.

References X.

◆ hasTemplateArgumentForDeduction()

static bool hasTemplateArgumentForDeduction	(	ArrayRef< TemplateArgument > &	Args,
		unsigned &	ArgIdx
	)

static

Determine whether there is a template argument to be used for deduction.

This routine "expands" argument packs in-place, overriding its input parameters so that Args[ArgIdx] will be the available template argument.

Returns: true if there is another template argument (which will be at Args[ArgIdx]), false otherwise.

Definition at line 2510 of file SemaTemplateDeduction.cpp.

References clang::TemplateArgument::getKind(), clang::TemplateArgument::Pack, and clang::TemplateArgument::pack_elements().

◆ instantiateExplicitSpecifierDeferred()

static TemplateDeductionResult instantiateExplicitSpecifierDeferred	(	Sema &	S,
		FunctionDecl *	Specialization,
		const MultiLevelTemplateArgumentList &	SubstArgs,
		TemplateDeductionInfo &	Info,
		FunctionTemplateDecl *	FunctionTemplate,
		ArrayRef< TemplateArgument >	DeducedArgs
	)

static

Definition at line 3782 of file SemaTemplateDeduction.cpp.

◆ isAtLeastAsSpecializedAs() [1/2]

template<typename TemplateLikeDecl >

static bool isAtLeastAsSpecializedAs	(	Sema &	S,
		QualType	T1,
		QualType	T2,
		TemplateLikeDecl *	P2,
		TemplateDeductionInfo &	Info
	)

static

Determine whether one partial specialization, P1, is at least as specialized than another, P2.

Template Parameters

TemplateLikeDecl The kind of P2, which must be a TemplateDecl or {Class,Var}TemplatePartialSpecializationDecl.

Parameters

T1	The injected-class-name of P1 (faked for a variable template).
T2	The injected-class-name of P2 (faked for a variable template).

Definition at line 6017 of file SemaTemplateDeduction.cpp.

◆ isAtLeastAsSpecializedAs() [2/2]

static bool isAtLeastAsSpecializedAs	(	Sema &	S,
		SourceLocation	Loc,
		const FunctionTemplateDecl *	FT1,
		const FunctionTemplateDecl *	FT2,
		TemplatePartialOrderingContext	TPOC,
		bool	Reversed,
		const SmallVector< QualType > &	Args1,
		const SmallVector< QualType > &	Args2
	)

static

Determine whether the function template FT1 is at least as specialized as FT2.

Definition at line 5505 of file SemaTemplateDeduction.cpp.

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

◆ isForwardingReference()

static bool isForwardingReference	(	QualType	Param,
		unsigned	FirstInnerIndex
	)

static

Determine whether a type denotes a forwarding reference.

Definition at line 1343 of file SemaTemplateDeduction.cpp.

References clang::Type::getAs(), and clang::TemplateTypeParmType::getIndex().

◆ IsPossiblyOpaquelyQualifiedType()

static bool IsPossiblyOpaquelyQualifiedType ( QualType T )

static

Determines whether the given type is an opaque type that might be more qualified when instantiated.

Definition at line 763 of file SemaTemplateDeduction.cpp.

References clang::Type::getCanonicalTypeInternal(), clang::QualType::getTypePtr(), IsPossiblyOpaquelyQualifiedTypeInternal(), and clang::T.

◆ IsPossiblyOpaquelyQualifiedTypeInternal()

static bool IsPossiblyOpaquelyQualifiedTypeInternal ( const Type * T )

static

Definition at line 735 of file SemaTemplateDeduction.cpp.

References clang::Type::getTypeClass(), clang::Type::isCanonicalUnqualified(), and clang::T.

Referenced by IsPossiblyOpaquelyQualifiedType().

◆ isSameDeclaration()

static bool isSameDeclaration	(	Decl *	X,
		Decl *	Y
	)

static

Determine whether two declaration pointers refer to the same declaration.

Definition at line 201 of file SemaTemplateDeduction.cpp.

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

◆ isSameTemplate()

static bool isSameTemplate	(	TemplateDecl *	T1,
		TemplateDecl *	T2
	)

static

Determine if the two templates are equivalent.

Definition at line 5867 of file SemaTemplateDeduction.cpp.

References clang::Decl::getCanonicalDecl().

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

◆ isSameTemplateArg()

static bool isSameTemplateArg	(	ASTContext &	Context,
		TemplateArgument	X,
		const TemplateArgument &	Y,
		bool	PartialOrdering,
		bool	PackExpansionMatchesPack = `false`
	)

static

Determine whether two template arguments are the same.

Definition at line 2647 of file SemaTemplateDeduction.cpp.

◆ isSimpleTemplateIdType()

static bool isSimpleTemplateIdType ( QualType T )

static

Determine whether the given type T is a simple-template-id type.

Definition at line 3401 of file SemaTemplateDeduction.cpp.

References clang::Type::getAs(), and clang::T.

◆ makeTemplateParameter()

static TemplateParameter makeTemplateParameter ( Decl * D )

static

Helper function to build a TemplateParameter when we don't know its type statically.

Definition at line 770 of file SemaTemplateDeduction.cpp.

◆ MarkUsedTemplateParameters() [1/5]

static void MarkUsedTemplateParameters	(	ASTContext &	Ctx,
		const Expr *	E,
		bool	OnlyDeduced,
		unsigned	Depth,
		llvm::SmallBitVector &	Used
	)

static

Mark the template parameters that are used by the given expression.

Definition at line 6452 of file SemaTemplateDeduction.cpp.

References Depth, getDeducedParameterFromExpr(), clang::NonTypeTemplateParmDecl::getDepth(), clang::NonTypeTemplateParmDecl::getIndex(), clang::ASTContext::getLangOpts(), clang::ValueDecl::getType(), MarkUsedTemplateParameters(), and Used.

◆ MarkUsedTemplateParameters() [2/5]

static void MarkUsedTemplateParameters	(	ASTContext &	Ctx,
		const TemplateArgument &	TemplateArg,
		bool	OnlyDeduced,
		unsigned	Depth,
		llvm::SmallBitVector &	Used
	)

static

Mark the template parameters that are used by this template argument.

Definition at line 6830 of file SemaTemplateDeduction.cpp.

References clang::TemplateArgument::Declaration, Depth, clang::TemplateArgument::Expression, clang::TemplateArgument::Integral, clang::TemplateArgument::Null, clang::TemplateArgument::NullPtr, P, clang::TemplateArgument::Pack, clang::TemplateArgument::StructuralValue, clang::TemplateArgument::Template, clang::TemplateArg, clang::TemplateArgument::TemplateExpansion, clang::TemplateArgument::Type, and Used.

Referenced by MarkUsedTemplateParameters().

◆ MarkUsedTemplateParameters() [3/5]

static void MarkUsedTemplateParameters	(	ASTContext &	Ctx,
		NestedNameSpecifier *	NNS,
		bool	OnlyDeduced,
		unsigned	Depth,
		llvm::SmallBitVector &	Used
	)

static

Mark the template parameters that are used by the given nested name specifier.

Definition at line 6483 of file SemaTemplateDeduction.cpp.

References Depth, clang::NestedNameSpecifier::getAsType(), clang::NestedNameSpecifier::getPrefix(), MarkUsedTemplateParameters(), and Used.

◆ MarkUsedTemplateParameters() [4/5]

static void MarkUsedTemplateParameters	(	ASTContext &	Ctx,
		QualType	T,
		bool	OnlyDeduced,
		unsigned	Level,
		llvm::SmallBitVector &	Deduced
	)

static

Mark the template parameters that are used by the given type.

Definition at line 6525 of file SemaTemplateDeduction.cpp.

References Depth, clang::DependentAddressSpaceType::getAddrSpaceExpr(), clang::SubstTemplateTypeParmPackType::getArgumentPack(), clang::Type::getAs(), clang::ASTContext::getCanonicalType(), clang::MemberPointerType::getClass(), clang::DependentSizedMatrixType::getColumnExpr(), clang::TemplateTypeParmDecl::getDepth(), clang::TemplateTypeParmType::getDepth(), clang::DependentSizedExtVectorType::getElementType(), clang::MatrixType::getElementType(), clang::TemplateTypeParmType::getIndex(), clang::SubstTemplateTypeParmPackType::getIndex(), clang::FunctionProtoType::getNoexceptExpr(), clang::FunctionProtoType::getNumParams(), clang::FunctionProtoType::getParamType(), clang::MemberPointerType::getPointeeType(), clang::DependentAddressSpaceType::getPointeeType(), clang::DependentTemplateSpecializationType::getQualifier(), clang::SubstTemplateTypeParmPackType::getReplacedParameter(), clang::FunctionType::getReturnType(), clang::DependentSizedMatrixType::getRowExpr(), clang::DependentSizedExtVectorType::getSizeExpr(), clang::TemplateSpecializationType::getTemplateName(), clang::Type::getTypeClass(), getUnderlyingType(), hasPackExpansionBeforeEnd(), clang::Type::isDependentType(), MarkUsedTemplateParameters(), clang::T, clang::TemplateSpecializationType::template_arguments(), clang::DependentTemplateSpecializationType::template_arguments(), and Used.

◆ MarkUsedTemplateParameters() [5/5]

static void MarkUsedTemplateParameters	(	ASTContext &	Ctx,
		TemplateName	Name,
		bool	OnlyDeduced,
		unsigned	Depth,
		llvm::SmallBitVector &	Used
	)

static

Mark the template parameters that are used by the given template name.

Definition at line 6500 of file SemaTemplateDeduction.cpp.

◆ ResolveOverloadForDeduction()

static QualType ResolveOverloadForDeduction	(	Sema &	S,
		TemplateParameterList *	TemplateParams,
		Expr *	Arg,
		QualType	ParamType,
		bool	ParamWasReference,
		TemplateSpecCandidateSet *	FailedTSC = `nullptr`
	)

static

Apply the deduction rules for overload sets.

Returns: the null type if this argument should be treated as an undeduced context

Definition at line 4056 of file SemaTemplateDeduction.cpp.

Classes

Namespaces

Macros

Enumerations

Functions

Macro Definition Documentation

◆ ABSTRACT_TYPE

◆ DEPENDENT_TYPE

◆ NON_CANONICAL_TYPE [1/2]

◆ NON_CANONICAL_TYPE [2/2]

◆ TYPE [1/2]

◆ TYPE [2/2]

Enumeration Type Documentation

◆ PackFold

Function Documentation

◆ AdjustFunctionParmAndArgTypesForDeduction()

◆ CheckDeducedArgumentConstraints()

◆ CheckDeducedPlaceholderConstraints()

◆ checkDeducedTemplateArguments()

◆ CheckOriginalCallArgDeduction()

◆ ConvertDeducedTemplateArgument()

◆ ConvertDeducedTemplateArguments()

◆ DeducedArgsNeedReplacement()

◆ DeducedArgsNeedReplacement< ClassTemplatePartialSpecializationDecl >()

◆ DeducedArgsNeedReplacement< VarTemplatePartialSpecializationDecl >()

◆ DeduceFromInitializerList()

◆ DeduceNonTypeTemplateArgument() [1/4]

◆ DeduceNonTypeTemplateArgument() [2/4]

◆ DeduceNonTypeTemplateArgument() [3/4]

◆ DeduceNonTypeTemplateArgument() [4/4]

◆ DeduceNullPtrTemplateArgument()

◆ DeduceTemplateArguments() [1/5]

◆ DeduceTemplateArguments() [2/5]

◆ DeduceTemplateArguments() [3/5]

◆ DeduceTemplateArguments() [4/5]

◆ DeduceTemplateArguments() [5/5]

◆ DeduceTemplateArgumentsByTypeMatch()

◆ DeduceTemplateArgumentsFromCallArgument()

◆ DeduceTemplateBases()

◆ DeduceTemplateSpecArguments()

◆ FinishTemplateArgumentDeduction() [1/3]

◆ FinishTemplateArgumentDeduction() [2/3]

◆ FinishTemplateArgumentDeduction() [3/3]

◆ getAsDeclContextOrEnclosing()

◆ getCanonicalRD()

◆ getDeducedParameterFromExpr() [1/2]

◆ getDeducedParameterFromExpr() [2/2]

◆ getFirstInnerIndex()

◆ GetImplicitObjectParameterType()

◆ getMoreSpecialized()

◆ getPackIndexForParam()

◆ getTemplateParameterWithDefault()

◆ GetTypeOfFunction()

◆ hasDeducibleTemplateParameters()

◆ hasInconsistentOrSupersetQualifiersOf()

◆ hasPackExpansionBeforeEnd()

◆ hasSameExtendedValue()

◆ hasTemplateArgumentForDeduction()

◆ instantiateExplicitSpecifierDeferred()

◆ isAtLeastAsSpecializedAs() [1/2]

◆ isAtLeastAsSpecializedAs() [2/2]

◆ isForwardingReference()

◆ IsPossiblyOpaquelyQualifiedType()

◆ IsPossiblyOpaquelyQualifiedTypeInternal()

◆ isSameDeclaration()

◆ isSameTemplate()

◆ isSameTemplateArg()

◆ isSimpleTemplateIdType()

◆ makeTemplateParameter()

◆ MarkUsedTemplateParameters() [1/5]

◆ MarkUsedTemplateParameters() [2/5]

◆ MarkUsedTemplateParameters() [3/5]

◆ MarkUsedTemplateParameters() [4/5]

◆ MarkUsedTemplateParameters() [5/5]

◆ ResolveOverloadForDeduction()