SemaTemplate.cpp File Reference

#include "TreeTransform.h"
#include "clang/AST/ASTConsumer.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/Decl.h"
#include "clang/AST/DeclFriend.h"
#include "clang/AST/DeclTemplate.h"
#include "clang/AST/Expr.h"
#include "clang/AST/ExprCXX.h"
#include "clang/AST/RecursiveASTVisitor.h"
#include "clang/AST/TemplateName.h"
#include "clang/AST/TypeVisitor.h"
#include "clang/Basic/Builtins.h"
#include "clang/Basic/DiagnosticSema.h"
#include "clang/Basic/LangOptions.h"
#include "clang/Basic/PartialDiagnostic.h"
#include "clang/Basic/Stack.h"
#include "clang/Basic/TargetInfo.h"
#include "clang/Sema/DeclSpec.h"
#include "clang/Sema/Initialization.h"
#include "clang/Sema/Lookup.h"
#include "clang/Sema/Overload.h"
#include "clang/Sema/ParsedTemplate.h"
#include "clang/Sema/Scope.h"
#include "clang/Sema/SemaInternal.h"
#include "clang/Sema/Template.h"
#include "clang/Sema/TemplateDeduction.h"
#include "llvm/ADT/SmallBitVector.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringExtras.h"
#include <iterator>
#include <optional>
#include "clang/AST/TypeNodes.inc"

Include dependency graph for SemaTemplate.cpp:

Go to the source code of this file.

Macros
#define	TYPE(Class, Parent)    bool Visit##Class##Type(const Class##Type *);
#define	ABSTRACT_TYPE(Class, Parent)    bool Visit##Class##Type(const Class##Type *) { return false; }
#define	NON_CANONICAL_TYPE(Class, Parent)    bool Visit##Class##Type(const Class##Type *) { return false; }

Enumerations
enum	NullPointerValueKind { NPV_NotNullPointer , NPV_NullPointer , NPV_Error }

Functions
static TemplateArgumentLoc	translateTemplateArgument (Sema &SemaRef, const ParsedTemplateArgument &Arg)
static void	maybeDiagnoseTemplateParameterShadow (Sema &SemaRef, Scope *S, SourceLocation Loc, IdentifierInfo *Name)
static TemplateArgumentListInfo	makeTemplateArgumentListInfo (Sema &S, TemplateIdAnnotation &TemplateId)
	Convert the parser's template argument list representation into our form.
template<typename ArgumentLocAppender >
static ExprResult	formImmediatelyDeclaredConstraint (Sema &S, NestedNameSpecifierLoc NS, DeclarationNameInfo NameInfo, ConceptDecl *NamedConcept, SourceLocation LAngleLoc, SourceLocation RAngleLoc, QualType ConstrainedType, SourceLocation ParamNameLoc, ArgumentLocAppender Appender, SourceLocation EllipsisLoc)
static void	SetNestedNameSpecifier (Sema &S, TagDecl *T, const CXXScopeSpec &SS)
static bool	DiagnoseDefaultTemplateArgument (Sema &S, Sema::TemplateParamListContext TPC, SourceLocation ParamLoc, SourceRange DefArgRange)
	Diagnose the presence of a default template argument on a template parameter, which is ill-formed in certain contexts.
static bool	DiagnoseUnexpandedParameterPacks (Sema &S, TemplateTemplateParmDecl *TTP)
	Check for unexpanded parameter packs within the template parameters of a template template parameter, recursively.
static bool	DependsOnTemplateParameters (QualType T, TemplateParameterList *Params)
	Determines whether a given type depends on the given parameter list.
static SourceRange	getRangeOfTypeInNestedNameSpecifier (ASTContext &Context, QualType T, const CXXScopeSpec &SS)
static QualType	checkBuiltinTemplateIdType (Sema &SemaRef, BuiltinTemplateDecl *BTD, ArrayRef< TemplateArgument > Converted, SourceLocation TemplateLoc, TemplateArgumentListInfo &TemplateArgs)
static bool	isEnableIfAliasTemplate (TypeAliasTemplateDecl *AliasTemplate)
	Determine whether this alias template is "enable_if_t".
static void	collectConjunctionTerms (Expr *Clause, SmallVectorImpl< Expr * > &Terms)
	Collect all of the separable terms in the given condition, which might be a conjunction.
static Expr *	lookThroughRangesV3Condition (Preprocessor &PP, Expr *Cond)
static bool	CheckTemplateSpecializationScope (Sema &S, NamedDecl *Specialized, NamedDecl *PrevDecl, SourceLocation Loc, bool IsPartialSpecialization)
	Check whether a specialization is well-formed in the current context.
static TemplateSpecializationKind	getTemplateSpecializationKind (Decl *D)
	Determine what kind of template specialization the given declaration is.
static bool	isTemplateArgumentTemplateParameter (const TemplateArgument &Arg, unsigned Depth, unsigned Index)
static bool	isSameAsPrimaryTemplate (TemplateParameterList *Params, ArrayRef< TemplateArgument > Args)
template<typename PartialSpecDecl >
static void	checkMoreSpecializedThanPrimary (Sema &S, PartialSpecDecl *Partial)
static void	noteNonDeducibleParameters (Sema &S, TemplateParameterList *TemplateParams, const llvm::SmallBitVector &DeducibleParams)
template<typename PartialSpecDecl >
static void	checkTemplatePartialSpecialization (Sema &S, PartialSpecDecl *Partial)
static TypeSourceInfo *	SubstDefaultTemplateArgument (Sema &SemaRef, TemplateDecl *Template, SourceLocation TemplateLoc, SourceLocation RAngleLoc, TemplateTypeParmDecl *Param, ArrayRef< TemplateArgument > SugaredConverted, ArrayRef< TemplateArgument > CanonicalConverted)
	Substitute template arguments into the default template argument for the given template type parameter.
static ExprResult	SubstDefaultTemplateArgument (Sema &SemaRef, TemplateDecl *Template, SourceLocation TemplateLoc, SourceLocation RAngleLoc, NonTypeTemplateParmDecl *Param, ArrayRef< TemplateArgument > SugaredConverted, ArrayRef< TemplateArgument > CanonicalConverted)
	Substitute template arguments into the default template argument for the given non-type template parameter.
static TemplateName	SubstDefaultTemplateArgument (Sema &SemaRef, TemplateDecl *Template, SourceLocation TemplateLoc, SourceLocation RAngleLoc, TemplateTemplateParmDecl *Param, ArrayRef< TemplateArgument > SugaredConverted, ArrayRef< TemplateArgument > CanonicalConverted, NestedNameSpecifierLoc &QualifierLoc)
	Substitute template arguments into the default template argument for the given template template parameter.
static TemplateArgumentLoc	convertTypeTemplateArgumentToTemplate (ASTContext &Context, TypeLoc TLoc)
	Convert a template-argument that we parsed as a type into a template, if possible.
template<typename TemplateParmDecl >
static bool	diagnoseMissingArgument (Sema &S, SourceLocation Loc, TemplateDecl *TD, const TemplateParmDecl *D, TemplateArgumentListInfo &Args)
	Diagnose a missing template argument.
static NullPointerValueKind	isNullPointerValueTemplateArgument (Sema &S, NonTypeTemplateParmDecl *Param, QualType ParamType, Expr *Arg, Decl *Entity=nullptr)
	Determine whether the given template argument is a null pointer value of the appropriate type.
static bool	CheckTemplateArgumentIsCompatibleWithParameter (Sema &S, NonTypeTemplateParmDecl *Param, QualType ParamType, Expr *ArgIn, Expr *Arg, QualType ArgType)
	Checks whether the given template argument is compatible with its template parameter.
static bool	CheckTemplateArgumentAddressOfObjectOrFunction (Sema &S, NonTypeTemplateParmDecl *Param, QualType ParamType, Expr *ArgIn, TemplateArgument &SugaredConverted, TemplateArgument &CanonicalConverted)
	Checks whether the given template argument is the address of an object or function according to C++ [temp.arg.nontype]p1.
static bool	CheckTemplateArgumentPointerToMember (Sema &S, NonTypeTemplateParmDecl *Param, QualType ParamType, Expr *&ResultArg, TemplateArgument &SugaredConverted, TemplateArgument &CanonicalConverted)
	Checks whether the given template argument is a pointer to member constant according to C++ [temp.arg.nontype]p1.
static void	DiagnoseTemplateParameterListArityMismatch (Sema &S, TemplateParameterList *New, TemplateParameterList *Old, Sema::TemplateParameterListEqualKind Kind, SourceLocation TemplateArgLoc)
	Diagnose a known arity mismatch when comparing template argument lists.
static bool	MatchTemplateParameterKind (Sema &S, NamedDecl *New, const NamedDecl *NewInstFrom, NamedDecl *Old, const NamedDecl *OldInstFrom, bool Complain, Sema::TemplateParameterListEqualKind Kind, SourceLocation TemplateArgLoc, bool PartialOrdering)
	Match two template parameters within template parameter lists.
static SourceRange	findTemplateParameterInType (unsigned Depth, Expr *E)
static SourceRange	findTemplateParameter (unsigned Depth, TypeLoc TL)
static bool	CheckNonTypeTemplatePartialSpecializationArgs (Sema &S, SourceLocation TemplateNameLoc, NonTypeTemplateParmDecl *Param, const TemplateArgument *Args, unsigned NumArgs, bool IsDefaultArgument)
	Subroutine of Sema::CheckTemplatePartialSpecializationArgs that checks non-type template partial specialization arguments.
static void	StripImplicitInstantiation (NamedDecl *D, bool MinGW)
	Strips various properties off an implicit instantiation that has just been explicitly specialized.
static SourceLocation	DiagLocForExplicitInstantiation (NamedDecl *D, SourceLocation PointOfInstantiation)
	Compute the diagnostic location for an explicit instantiation.
template<typename DeclT >
static void	completeMemberSpecializationImpl (Sema &S, DeclT *OrigD, SourceLocation Loc)
	Complete the explicit specialization of a member of a class template by updating the instantiated member to be marked as an explicit specialization.
static bool	CheckExplicitInstantiationScope (Sema &S, NamedDecl *D, SourceLocation InstLoc, bool WasQualifiedName)
	Check the scope of an explicit instantiation.
static bool	CheckExplicitInstantiation (Sema &S, NamedDecl *D, SourceLocation InstLoc, bool WasQualifiedName, TemplateSpecializationKind TSK)
	Common checks for whether an explicit instantiation of D is valid.
static bool	ScopeSpecifierHasTemplateId (const CXXScopeSpec &SS)
	Determine whether the given scope specifier has a template-id in it.
static void	dllExportImportClassTemplateSpecialization (Sema &S, ClassTemplateSpecializationDecl *Def)
	Make a dllexport or dllimport attr on a class template specialization take effect.
static bool	isEnableIf (NestedNameSpecifierLoc NNS, const IdentifierInfo &II, SourceRange &CondRange, Expr *&Cond)
	Determine whether this failed name lookup should be treated as being disabled by a usage of std::enable_if.

Macro Definition Documentation

ABSTRACT_TYPE

#define ABSTRACT_TYPE	(		Class,
			Parent
	)		bool Visit##Class##Type(const Class##Type *) { return false; }

Definition at line 6188 of file SemaTemplate.cpp.

NON_CANONICAL_TYPE

#define NON_CANONICAL_TYPE	(		Class,
			Parent
	)		bool Visit##Class##Type(const Class##Type *) { return false; }

Definition at line 6190 of file SemaTemplate.cpp.

TYPE

#define TYPE	(		Class,
			Parent
	)		bool Visit##Class##Type(const Class##Type *);

Definition at line 6186 of file SemaTemplate.cpp.

Enumeration Type Documentation

NullPointerValueKind

enum NullPointerValueKind

Enumerator
NPV_NotNullPointer
NPV_NullPointer
NPV_Error

Definition at line 6481 of file SemaTemplate.cpp.

Function Documentation

checkBuiltinTemplateIdType()

static QualType checkBuiltinTemplateIdType ( Sema &  SemaRef, BuiltinTemplateDecl *  BTD, ArrayRef< TemplateArgument >  Converted, SourceLocation  TemplateLoc, TemplateArgumentListInfo &  TemplateArgs  )

static

Definition at line 3603 of file SemaTemplate.cpp.

References clang::TemplateArgumentListInfo::addArgument(), clang::BTK__make_integer_seq, clang::BTK__type_pack_element, clang::Sema::CheckTemplateIdType(), clang::Sema::Context, clang::Sema::Diag(), clang::TemplateArgument::getAsIntegral(), clang::Sema::getASTContext(), clang::BuiltinTemplateDecl::getBuiltinTemplateKind(), clang::ASTContext::getCanonicalTemplateSpecializationType(), clang::Sema::getTrivialTemplateArgumentLoc(), clang::ASTContext::getTrivialTypeSourceInfo(), clang::TemplateArgument::isDependent(), clang::Type::isDependentType(), and clang::Type::isIntegralType().

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

CheckExplicitInstantiation()

static bool CheckExplicitInstantiation ( Sema &  S, NamedDecl *  D, SourceLocation  InstLoc, bool  WasQualifiedName, TemplateSpecializationKind  TSK  )

static

Common checks for whether an explicit instantiation of D is valid.

Definition at line 9821 of file SemaTemplate.cpp.

References CheckExplicitInstantiationScope(), clang::Sema::Diag(), clang::NamedDecl::getFormalLinkage(), clang::InternalLinkage, and clang::TSK_ExplicitInstantiationDeclaration.

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

CheckExplicitInstantiationScope()

static bool CheckExplicitInstantiationScope ( Sema &  S, NamedDecl *  D, SourceLocation  InstLoc, bool  WasQualifiedName  )

static

Check the scope of an explicit instantiation.

Returns

true if a serious error occurs, false otherwise.

Definition at line 9769 of file SemaTemplate.cpp.

References clang::Sema::CurContext, clang::Sema::Diag(), clang::DeclContext::Encloses(), clang::Decl::getDeclContext(), clang::DeclContext::getEnclosingNamespaceContext(), clang::Sema::getLangOpts(), clang::Decl::getLocation(), clang::DeclContext::getRedeclContext(), clang::DeclContext::InEnclosingNamespaceSetOf(), and clang::DeclContext::isRecord().

Referenced by CheckExplicitInstantiation().

checkMoreSpecializedThanPrimary()

template<typename PartialSpecDecl >

static void checkMoreSpecializedThanPrimary ( Sema &  S, PartialSpecDecl *  Partial  )

static

Definition at line 4359 of file SemaTemplate.cpp.

References Diag(), clang::Sema::Diag(), clang::TemplateDecl::getAssociatedConstraints(), clang::Sema::getDiagnostics(), clang::Decl::getLocation(), clang::sema::TemplateDeductionInfo::hasSFINAEDiagnostic(), clang::Sema::isMoreSpecializedThanPrimary(), clang::Sema::MaybeEmitAmbiguousAtomicConstraintsDiagnostic(), and clang::sema::TemplateDeductionInfo::takeSFINAEDiagnostic().

Referenced by checkTemplatePartialSpecialization().

CheckNonTypeTemplatePartialSpecializationArgs()

static bool CheckNonTypeTemplatePartialSpecializationArgs ( Sema &  S, SourceLocation  TemplateNameLoc, NonTypeTemplateParmDecl *  Param, const TemplateArgument *  Args, unsigned  NumArgs, bool  IsDefaultArgument  )

static

Subroutine of Sema::CheckTemplatePartialSpecializationArgs that checks non-type template partial specialization arguments.

Definition at line 8434 of file SemaTemplate.cpp.

References CheckNonTypeTemplatePartialSpecializationArgs(), clang::Sema::Diag(), clang::TemplateArgument::Expression, findTemplateParameter(), findTemplateParameterInType(), clang::TemplateArgument::getAsExpr(), clang::SourceRange::getBegin(), clang::Stmt::getBeginLoc(), clang::NonTypeTemplateParmDecl::getDepth(), getKind(), clang::Decl::getLocation(), clang::ValueDecl::getType(), clang::TypeSourceInfo::getTypeLoc(), clang::DeclaratorDecl::getTypeSourceInfo(), clang::SourceRange::isValid(), and clang::TemplateArgument::Pack.

Referenced by CheckNonTypeTemplatePartialSpecializationArgs(), and clang::Sema::CheckTemplatePartialSpecializationArgs().

CheckTemplateArgumentAddressOfObjectOrFunction()

static bool CheckTemplateArgumentAddressOfObjectOrFunction ( Sema &  S, NonTypeTemplateParmDecl *  Param, QualType  ParamType, Expr *  ArgIn, TemplateArgument &  SugaredConverted, TemplateArgument &  CanonicalConverted  )

static

Checks whether the given template argument is the address of an object or function according to C++ [temp.arg.nontype]p1.

Definition at line 6652 of file SemaTemplate.cpp.

References CheckTemplateArgumentIsCompatibleWithParameter(), clang::Sema::Context, clang::FixItHint::CreateInsertion(), clang::FixItHint::CreateRemoval(), clang::Sema::Diag(), clang::ASTContext::getArrayDecayedType(), clang::Stmt::getBeginLoc(), clang::Decl::getCanonicalDecl(), clang::ASTContext::getCanonicalTemplateArgument(), clang::ASTContext::getCanonicalType(), clang::Expr::getExprLoc(), clang::NamedDecl::getFormalLinkage(), clang::Sema::getLangOpts(), clang::Decl::getLocation(), clang::QualType::getNonReferenceType(), clang::ASTContext::getPointerType(), clang::Stmt::getSourceRange(), clang::VarDecl::getTLSKind(), clang::ValueDecl::getType(), clang::Expr::getType(), clang::NamedDecl::hasLinkage(), clang::ASTContext::hasSameUnqualifiedType(), clang::Expr::IgnoreImpCasts(), clang::Expr::IgnoreParenCasts(), clang::InternalLinkage, clang::Invalid, clang::Type::isArrayType(), isNullPointerValueTemplateArgument(), clang::Type::isNullPtrType(), clang::Type::isPointerType(), clang::Type::isReferenceType(), clang::SourceLocation::isValid(), clang::Expr::isValueDependent(), clang::Sema::MarkAnyDeclReferenced(), NPV_Error, NPV_NotNullPointer, and NPV_NullPointer.

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

CheckTemplateArgumentIsCompatibleWithParameter()

static bool CheckTemplateArgumentIsCompatibleWithParameter ( Sema &  S, NonTypeTemplateParmDecl *  Param, QualType  ParamType, Expr *  ArgIn, Expr *  Arg, QualType  ArgType  )

static

Checks whether the given template argument is compatible with its template parameter.

Definition at line 6595 of file SemaTemplate.cpp.

References clang::Type::castAs(), clang::Sema::Context, clang::Sema::Diag(), clang::Type::getAs(), clang::Stmt::getBeginLoc(), clang::QualType::getCVRQualifiers(), clang::Decl::getLocation(), clang::QualType::getNonReferenceType(), clang::PointerType::getPointeeType(), clang::Stmt::getSourceRange(), clang::Expr::getType(), clang::ASTContext::hasSameUnqualifiedType(), clang::Type::isFunctionType(), clang::Type::isPointerType(), clang::Sema::IsQualificationConversion(), and clang::Type::isReferenceType().

Referenced by CheckTemplateArgumentAddressOfObjectOrFunction().

CheckTemplateArgumentPointerToMember()

static bool CheckTemplateArgumentPointerToMember ( Sema &  S, NonTypeTemplateParmDecl *  Param, QualType  ParamType, Expr *&  ResultArg, TemplateArgument &  SugaredConverted, TemplateArgument &  CanonicalConverted  )

static

Checks whether the given template argument is a pointer to member constant according to C++ [temp.arg.nontype]p1.

Definition at line 6919 of file SemaTemplate.cpp.

References clang::Sema::Context, clang::Sema::Diag(), clang::ActionResult< PtrTy, CompressInvalid >::get(), clang::Stmt::getBeginLoc(), clang::Decl::getCanonicalDecl(), clang::ASTContext::getCanonicalTemplateArgument(), clang::ASTContext::getCanonicalType(), clang::DeclRefExpr::getDecl(), clang::Expr::getExprLoc(), clang::Sema::getLangOpts(), clang::Decl::getLocation(), clang::QualType::getNonReferenceType(), clang::DeclRefExpr::getQualifier(), clang::Stmt::getSourceRange(), clang::ValueDecl::getType(), clang::Expr::getType(), clang::Expr::getValueKind(), clang::ASTContext::hasSameUnqualifiedType(), clang::Expr::IgnoreImpCasts(), clang::Sema::ImpCastExprToType(), clang::Invalid, clang::Type::isMemberPointerType(), isNullPointerValueTemplateArgument(), clang::Sema::IsQualificationConversion(), clang::Expr::isTypeDependent(), clang::Expr::isValueDependent(), NPV_Error, NPV_NotNullPointer, and NPV_NullPointer.

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

checkTemplatePartialSpecialization()

template<typename PartialSpecDecl >

static void checkTemplatePartialSpecialization ( Sema &  S, PartialSpecDecl *  Partial  )

static

Definition at line 4411 of file SemaTemplate.cpp.

References checkMoreSpecializedThanPrimary(), clang::Sema::Diag(), clang::TemplateParameterList::getDepth(), clang::Sema::MarkUsedTemplateParameters(), noteNonDeducibleParameters(), and clang::TemplateParameterList::size().

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

CheckTemplateSpecializationScope()

static bool CheckTemplateSpecializationScope ( Sema &  S, NamedDecl *  Specialized, NamedDecl *  PrevDecl, SourceLocation  Loc, bool  IsPartialSpecialization  )

static

Check whether a specialization is well-formed in the current context.

This routine determines whether a template specialization can be declared in the current context (C++ [temp.expl.spec]p2).

Parameters

S	the semantic analysis object for which this check is being performed.
Specialized	the entity being specialized or instantiated, which may be a kind of template (class template, function template, etc.) or a member of a class template (member function, static data member, member class).
PrevDecl	the previous declaration of this entity, if any.
Loc	the location of the explicit specialization or instantiation of this entity.
IsPartialSpecialization	whether this is a partial specialization of a class template.

Returns

true if there was an error that we cannot recover from, false otherwise.

Definition at line 8340 of file SemaTemplate.cpp.

References clang::Sema::CurContext, Diag(), clang::Sema::Diag(), clang::DeclContext::Encloses(), clang::DeclContext::Equals(), clang::Decl::getDeclContext(), clang::Sema::getLangOpts(), clang::Decl::getLocation(), clang::DeclContext::getRedeclContext(), clang::DeclContext::isFileContext(), clang::DeclContext::isFunctionOrMethod(), and clang::DeclContext::isRecord().

Referenced by clang::Sema::ActOnClassTemplateSpecialization(), clang::Sema::ActOnVarTemplateSpecialization(), clang::Sema::CheckFunctionTemplateSpecialization(), and clang::Sema::CheckMemberSpecialization().

collectConjunctionTerms()

static void collectConjunctionTerms ( Expr *  Clause, SmallVectorImpl< Expr * > &  Terms  )

static

Collect all of the separable terms in the given condition, which might be a conjunction.

FIXME: The right answer is to convert the logical expression into disjunctive normal form, so we can find the first failed term within each possible clause.

Definition at line 3700 of file SemaTemplate.cpp.

References collectConjunctionTerms(), and clang::Expr::IgnoreParenImpCasts().

Referenced by collectConjunctionTerms(), and clang::Sema::findFailedBooleanCondition().

completeMemberSpecializationImpl()

template<typename DeclT >

static void completeMemberSpecializationImpl ( Sema &  S, DeclT *  OrigD, SourceLocation  Loc  )

static

Complete the explicit specialization of a member of a class template by updating the instantiated member to be marked as an explicit specialization.

Parameters

OrigD	The member declaration instantiated from the template.
Loc	The location of the explicit specialization of the member.

Definition at line 9735 of file SemaTemplate.cpp.

References clang::TSK_ExplicitSpecialization, and clang::TSK_ImplicitInstantiation.

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

convertTypeTemplateArgumentToTemplate()

static TemplateArgumentLoc convertTypeTemplateArgumentToTemplate ( ASTContext &  Context, TypeLoc  TLoc  )

static

Convert a template-argument that we parsed as a type into a template, if possible.

C++ permits injected-class-names to perform dual service as template template arguments and as template type arguments.

Definition at line 5488 of file SemaTemplate.cpp.

References clang::ETK_None, and clang::TypeLoc::getAs().

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

DependsOnTemplateParameters()

static bool DependsOnTemplateParameters ( QualType  T, TemplateParameterList *  Params  )

static

Determines whether a given type depends on the given parameter list.

Definition at line 3155 of file SemaTemplate.cpp.

References clang::TemplateParameterList::size().

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

DiagLocForExplicitInstantiation()

static SourceLocation DiagLocForExplicitInstantiation ( NamedDecl *  D, SourceLocation  PointOfInstantiation  )

static

Compute the diagnostic location for an explicit instantiation.

Definition at line 9052 of file SemaTemplate.cpp.

References clang::SourceLocation::isValid().

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

DiagnoseDefaultTemplateArgument()

static bool DiagnoseDefaultTemplateArgument ( Sema &  S, Sema::TemplateParamListContext  TPC, SourceLocation  ParamLoc, SourceRange  DefArgRange  )

static

Diagnose the presence of a default template argument on a template parameter, which is ill-formed in certain contexts.

Returns

true if the default template argument should be dropped.

Definition at line 2658 of file SemaTemplate.cpp.

References clang::Sema::Diag(), clang::Sema::getLangOpts(), clang::Sema::TPC_ClassTemplate, clang::Sema::TPC_ClassTemplateMember, clang::Sema::TPC_FriendClassTemplate, clang::Sema::TPC_FriendFunctionTemplate, clang::Sema::TPC_FriendFunctionTemplateDefinition, clang::Sema::TPC_FunctionTemplate, clang::Sema::TPC_TypeAliasTemplate, and clang::Sema::TPC_VarTemplate.

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

diagnoseMissingArgument()

template<typename TemplateParmDecl >

static bool diagnoseMissingArgument ( Sema &  S, SourceLocation  Loc, TemplateDecl *  TD, const TemplateParmDecl *  D, TemplateArgumentListInfo &  Args  )

static

Diagnose a missing template argument.

Definition at line 5796 of file SemaTemplate.cpp.

References clang::Sema::DefaultArgument, clang::Sema::Diag(), clang::Sema::diagnoseMissingImport(), clang::Decl::getLocation(), clang::NamedDecl::getMostRecentDecl(), clang::TemplateParameterList::getSourceRange(), clang::Sema::getTemplateNameKindForDiagnostics(), clang::TemplateDecl::getTemplateParameters(), clang::Sema::hasReachableDefaultArgument(), and int.

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

DiagnoseTemplateParameterListArityMismatch()

static void DiagnoseTemplateParameterListArityMismatch ( Sema &  S, TemplateParameterList *  New, TemplateParameterList *  Old, Sema::TemplateParameterListEqualKind  Kind, SourceLocation  TemplateArgLoc  )

static

Diagnose a known arity mismatch when comparing template argument lists.

Definition at line 8105 of file SemaTemplate.cpp.

References clang::Sema::Diag(), clang::TemplateParameterList::getRAngleLoc(), clang::TemplateParameterList::getTemplateLoc(), clang::SourceLocation::isValid(), clang::TemplateParameterList::size(), and clang::Sema::TPL_TemplateMatch.

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

DiagnoseUnexpandedParameterPacks()

static bool DiagnoseUnexpandedParameterPacks ( Sema &  S, TemplateTemplateParmDecl *  TTP  )

static

Check for unexpanded parameter packs within the template parameters of a template template parameter, recursively.

Definition at line 2712 of file SemaTemplate.cpp.

References clang::Sema::DiagnoseUnexpandedParameterPack(), DiagnoseUnexpandedParameterPacks(), clang::TemplateParameterList::getParam(), clang::TemplateDecl::getTemplateParameters(), clang::TemplateTemplateParmDecl::isParameterPack(), P, clang::TemplateParameterList::size(), clang::Sema::UPPC_NonTypeTemplateParameterType, and clang::Sema::UPPC_TypeConstraint.

Referenced by DiagnoseUnexpandedParameterPacks().

dllExportImportClassTemplateSpecialization()

static void dllExportImportClassTemplateSpecialization ( Sema &  S, ClassTemplateSpecializationDecl *  Def  )

static

Make a dllexport or dllimport attr on a class template specialization take effect.

Definition at line 9866 of file SemaTemplate.cpp.

References clang::CXXRecordDecl::bases(), clang::Sema::checkClassLevelDLLAttribute(), clang::Sema::DelayedDllExportClasses, clang::TypeDecl::getBeginLoc(), clang::getDLLAttr(), clang::Sema::propagateDLLAttrToBaseClassTemplate(), and clang::Sema::referenceDLLExportedClassMethods().

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

findTemplateParameter()

static SourceRange findTemplateParameter ( unsigned  Depth, TypeLoc  TL  )

static

Definition at line 8422 of file SemaTemplate.cpp.

References clang::TypeLoc::getSourceRange(), clang::TypeLoc::getType(), and clang::Type::isDependentType().

Referenced by CheckNonTypeTemplatePartialSpecializationArgs().

findTemplateParameterInType()

static SourceRange findTemplateParameterInType ( unsigned  Depth, Expr *  E  )

static

Definition at line 8412 of file SemaTemplate.cpp.

References clang::Stmt::getSourceRange(), and clang::Expr::isTypeDependent().

Referenced by CheckNonTypeTemplatePartialSpecializationArgs().

formImmediatelyDeclaredConstraint()

template<typename ArgumentLocAppender >

static ExprResult formImmediatelyDeclaredConstraint ( Sema &  S, NestedNameSpecifierLoc  NS, DeclarationNameInfo  NameInfo, ConceptDecl *  NamedConcept, SourceLocation  LAngleLoc, SourceLocation  RAngleLoc, QualType  ConstrainedType, SourceLocation  ParamNameLoc, ArgumentLocAppender  Appender, SourceLocation  EllipsisLoc  )

static

Definition at line 1167 of file SemaTemplate.cpp.

References clang::TemplateArgumentListInfo::addArgument(), clang::CXXScopeSpec::Adopt(), clang::Sema::BuildCXXFoldExpr(), clang::Sema::CheckConceptTemplateId(), clang::ActionResult< PtrTy, CompressInvalid >::get(), clang::Sema::getTrivialTemplateArgumentLoc(), clang::ActionResult< PtrTy, CompressInvalid >::isInvalid(), clang::SourceLocation::isValid(), clang::TemplateArgumentListInfo::setLAngleLoc(), and clang::TemplateArgumentListInfo::setRAngleLoc().

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

getRangeOfTypeInNestedNameSpecifier()

static SourceRange getRangeOfTypeInNestedNameSpecifier ( ASTContext &  Context, QualType  T, const CXXScopeSpec &  SS  )

static

Definition at line 3166 of file SemaTemplate.cpp.

References clang::NestedNameSpecifierLoc::getNestedNameSpecifier(), clang::NestedNameSpecifierLoc::getPrefix(), clang::CXXScopeSpec::getScopeRep(), clang::TypeLoc::getSourceRange(), clang::NestedNameSpecifierLoc::getTypeLoc(), clang::ASTContext::hasSameUnqualifiedType(), and clang::CXXScopeSpec::location_data().

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

getTemplateSpecializationKind()

static TemplateSpecializationKind getTemplateSpecializationKind ( Decl *  D )

static

Determine what kind of template specialization the given declaration is.

Definition at line 8302 of file SemaTemplate.cpp.

References clang::TSK_Undeclared.

Referenced by clang::Sema::ActOnClassTemplateSpecialization(), clang::Sema::ActOnVarTemplateSpecialization(), clang::Sema::CheckMemberSpecialization(), and clang::Sema::CheckSpecializationInstantiationRedecl().

isEnableIf()

static bool isEnableIf ( NestedNameSpecifierLoc  NNS, const IdentifierInfo &  II, SourceRange &  CondRange, Expr *&  Cond  )

static

Determine whether this failed name lookup should be treated as being disabled by a usage of std::enable_if.

Definition at line 10859 of file SemaTemplate.cpp.

References clang::TemplateArgument::Expression, clang::TemplateSpecializationTypeLoc::getArgLoc(), clang::TemplateArgumentLoc::getArgument(), clang::TypeLoc::getAs(), clang::DeclarationName::getAsIdentifierInfo(), clang::TemplateName::getAsTemplateDecl(), clang::NestedNameSpecifier::getAsType(), clang::NamedDecl::getDeclName(), clang::TemplateArgument::getKind(), clang::NestedNameSpecifierLoc::getNestedNameSpecifier(), clang::TemplateSpecializationTypeLoc::getNumArgs(), clang::TemplateArgumentLoc::getSourceExpression(), clang::TemplateArgumentLoc::getSourceRange(), clang::TemplateSpecializationType::getTemplateName(), clang::NestedNameSpecifierLoc::getTypeLoc(), clang::ConcreteTypeLoc< Base, Derived, TypeClass, LocalData >::getTypePtr(), clang::Expr::IgnoreParenCasts(), clang::Type::isIncompleteType(), and clang::IdentifierInfo::isStr().

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

isEnableIfAliasTemplate()

static bool isEnableIfAliasTemplate ( TypeAliasTemplateDecl *  AliasTemplate )

static

Determine whether this alias template is "enable_if_t".

libc++ >=14 uses "__enable_if_t" in C++11 mode.

Definition at line 3689 of file SemaTemplate.cpp.

References clang::AliasTemplate.

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

isNullPointerValueTemplateArgument()

static NullPointerValueKind isNullPointerValueTemplateArgument ( Sema &  S, NonTypeTemplateParmDecl *  Param, QualType  ParamType, Expr *  Arg, Decl *  Entity = nullptr  )

static

Determine whether the given template argument is a null pointer value of the appropriate type.

Definition at line 6490 of file SemaTemplate.cpp.

References clang::Sema::Context, clang::FixItHint::CreateInsertion(), clang::Sema::DefaultFunctionArrayConversion(), clang::Expr::EvalStatus::Diag, clang::Sema::Diag(), clang::Expr::EvaluateAsRValue(), clang::ActionResult< PtrTy, CompressInvalid >::get(), clang::APValue::getAsString(), clang::QualType::getAsString(), clang::Stmt::getBeginLoc(), clang::Stmt::getEndLoc(), clang::Expr::getExprLoc(), clang::Sema::getLangOpts(), clang::Decl::getLocation(), clang::Sema::getLocForEndOfToken(), clang::APValue::getLValueBase(), clang::APValue::getMemberPointerDecl(), clang::Stmt::getSourceRange(), clang::Expr::getType(), clang::ASTContext::hasSameUnqualifiedType(), clang::Expr::EvalStatus::HasSideEffects, clang::Sema::isCompleteType(), clang::ActionResult< PtrTy, CompressInvalid >::isInvalid(), clang::APValue::isLValue(), clang::APValue::isMemberPointer(), clang::APValue::isNullPointer(), clang::Expr::isNullPointerConstant(), clang::Type::isNullPtrType(), clang::Sema::IsQualificationConversion(), clang::Expr::isTypeDependent(), clang::Expr::isValueDependent(), clang::Expr::NPC_NeverValueDependent, NPV_Error, NPV_NotNullPointer, NPV_NullPointer, and clang::Expr::EvalResult::Val.

Referenced by clang::Sema::CheckTemplateArgument(), CheckTemplateArgumentAddressOfObjectOrFunction(), and CheckTemplateArgumentPointerToMember().

isSameAsPrimaryTemplate()

static bool isSameAsPrimaryTemplate ( TemplateParameterList *  Params, ArrayRef< TemplateArgument >  Args  )

static

Definition at line 4332 of file SemaTemplate.cpp.

References clang::TemplateParameterList::getDepth(), clang::TemplateArgument::getKind(), clang::TemplateArgument::getPackExpansionPattern(), clang::TemplateParameterList::getParam(), clang::TemplateArgument::isPackExpansion(), clang::Decl::isParameterPack(), isTemplateArgumentTemplateParameter(), clang::TemplateArgument::Pack, clang::TemplateArgument::pack_begin(), clang::TemplateArgument::pack_size(), and clang::TemplateParameterList::size().

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

isTemplateArgumentTemplateParameter()

static bool isTemplateArgumentTemplateParameter ( const TemplateArgument &  Arg, unsigned  Depth, unsigned  Index  )

static

Definition at line 4295 of file SemaTemplate.cpp.

References clang::TemplateArgument::Declaration, clang::TemplateArgument::Expression, clang::Type::getAs(), clang::TemplateArgument::getAsExpr(), clang::TemplateName::getAsTemplateDecl(), clang::TemplateArgument::getAsTemplateOrTemplatePattern(), clang::TemplateArgument::getAsType(), clang::DeclRefExpr::getDecl(), clang::NonTypeTemplateParmDecl::getDepth(), clang::TemplateTemplateParmDecl::getDepth(), clang::TemplateTypeParmType::getDepth(), clang::NonTypeTemplateParmDecl::getIndex(), clang::TemplateTemplateParmDecl::getIndex(), clang::TemplateTypeParmType::getIndex(), clang::TemplateArgument::getKind(), clang::TemplateArgument::Integral, clang::TemplateArgument::Null, clang::TemplateArgument::NullPtr, clang::TemplateArgument::Pack, clang::TemplateArgument::Template, clang::TemplateArgument::TemplateExpansion, and clang::TemplateArgument::Type.

Referenced by isSameAsPrimaryTemplate().

lookThroughRangesV3Condition()

static Expr * lookThroughRangesV3Condition ( Preprocessor &  PP, Expr *  Cond  )

static

Definition at line 3716 of file SemaTemplate.cpp.

References clang::Preprocessor::getImmediateMacroName(), clang::Expr::IgnoreParenImpCasts(), and clang::SourceLocation::isMacroID().

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

makeTemplateArgumentListInfo()

static TemplateArgumentListInfo makeTemplateArgumentListInfo ( Sema &  S, TemplateIdAnnotation &  TemplateId  )

static

Convert the parser's template argument list representation into our form.

Definition at line 1101 of file SemaTemplate.cpp.

References clang::TemplateIdAnnotation::getTemplateArgs(), clang::TemplateIdAnnotation::LAngleLoc, clang::TemplateIdAnnotation::NumArgs, clang::TemplateIdAnnotation::RAngleLoc, and clang::Sema::translateTemplateArguments().

Referenced by clang::Sema::ActOnClassTemplateSpecialization(), clang::Sema::ActOnExplicitInstantiation(), clang::Sema::ActOnVarTemplateSpecialization(), and clang::Sema::BuildTypeConstraint().

MatchTemplateParameterKind()

static bool MatchTemplateParameterKind ( Sema &  S, NamedDecl *  New, const NamedDecl *  NewInstFrom, NamedDecl *  Old, const NamedDecl *  OldInstFrom, bool  Complain, Sema::TemplateParameterListEqualKind  Kind, SourceLocation  TemplateArgLoc, bool  PartialOrdering  )

static

Match two template parameters within template parameter lists.

Definition at line 7961 of file SemaTemplate.cpp.

References clang::Sema::AreConstraintExpressionsEqual(), clang::Sema::Context, clang::Sema::Diag(), clang::Decl::getBeginLoc(), clang::Stmt::getBeginLoc(), clang::Decl::getKind(), clang::Decl::getLocation(), clang::TemplateDecl::getTemplateParameters(), clang::ValueDecl::getType(), clang::ASTContext::hasSameType(), clang::Type::isDependentType(), clang::Decl::isParameterPack(), clang::Decl::isTemplateParameterPack(), clang::SourceLocation::isValid(), clang::PartialOrdering, clang::Sema::TemplateParameterListsAreEqual(), clang::Sema::TPL_TemplateMatch, clang::Sema::TPL_TemplateTemplateArgumentMatch, and clang::Sema::TPL_TemplateTemplateParmMatch.

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

maybeDiagnoseTemplateParameterShadow()

static void maybeDiagnoseTemplateParameterShadow ( Sema &  SemaRef, Scope *  S, SourceLocation  Loc, IdentifierInfo *  Name  )

static

Definition at line 967 of file SemaTemplate.cpp.

References clang::Sema::DiagnoseTemplateParameterShadow(), clang::Sema::ForVisibleRedeclaration, clang::Decl::isTemplateParameter(), clang::Sema::LookupOrdinaryName, and clang::Sema::LookupSingleName().

Referenced by clang::Sema::ActOnNonTypeTemplateParameter(), clang::Sema::ActOnTemplateTemplateParameter(), and clang::Sema::ActOnTypeParameter().

noteNonDeducibleParameters()

static void noteNonDeducibleParameters ( Sema &  S, TemplateParameterList *  TemplateParams, const llvm::SmallBitVector &  DeducibleParams  )

static

Definition at line 4394 of file SemaTemplate.cpp.

References clang::Sema::Diag(), clang::NamedDecl::getDeclName(), clang::Decl::getLocation(), and clang::TemplateParameterList::getParam().

Referenced by clang::Sema::CheckDeductionGuideTemplate(), and checkTemplatePartialSpecialization().

ScopeSpecifierHasTemplateId()

static bool ScopeSpecifierHasTemplateId ( const CXXScopeSpec &  SS )

static

Determine whether the given scope specifier has a template-id in it.

Definition at line 9844 of file SemaTemplate.cpp.

References clang::NestedNameSpecifier::getAsType(), clang::NestedNameSpecifier::getPrefix(), clang::CXXScopeSpec::getScopeRep(), and clang::CXXScopeSpec::isSet().

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

SetNestedNameSpecifier()

static void SetNestedNameSpecifier ( Sema &  S, TagDecl *  T, const CXXScopeSpec &  SS  )

static

Definition at line 1806 of file SemaTemplate.cpp.

References clang::Sema::Context, clang::CXXScopeSpec::getWithLocInContext(), clang::CXXScopeSpec::isSet(), and clang::TagDecl::setQualifierInfo().

StripImplicitInstantiation()

static void StripImplicitInstantiation ( NamedDecl *  D, bool  MinGW  )

static

Strips various properties off an implicit instantiation that has just been explicitly specialized.

Definition at line 9039 of file SemaTemplate.cpp.

References clang::Decl::dropAttr().

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

SubstDefaultTemplateArgument() [1/3]

static ExprResult SubstDefaultTemplateArgument ( Sema &  SemaRef, TemplateDecl *  Template, SourceLocation  TemplateLoc, SourceLocation  RAngleLoc, NonTypeTemplateParmDecl *  Param, ArrayRef< TemplateArgument >  SugaredConverted, ArrayRef< TemplateArgument >  CanonicalConverted  )

static

Substitute template arguments into the default template argument for the given non-type template parameter.

Parameters

SemaRef	the semantic analysis object for which we are performing the substitution.
Template	the template that we are synthesizing template arguments for.
TemplateLoc	the location of the template name that started the template-id we are checking.
RAngleLoc	the location of the right angle bracket ('>') that terminates the template-id.
Param	the non-type template parameter whose default we are substituting into.
Converted	the list of template arguments provided for template parameters that precede Param in the template parameter list.

Returns

the substituted template argument, or NULL if an error occurred.

Definition at line 5342 of file SemaTemplate.cpp.

References clang::MultiLevelTemplateArgumentList::addOuterTemplateArguments(), clang::Sema::ConstantEvaluated, clang::ExprError(), clang::Decl::getDeclContext(), clang::NonTypeTemplateParmDecl::getDefaultArgument(), clang::NonTypeTemplateParmDecl::getDepth(), clang::Sema::InstantiatingTemplate::isInvalid(), and clang::Sema::SubstExpr().

SubstDefaultTemplateArgument() [2/3]

static TemplateName SubstDefaultTemplateArgument ( Sema &  SemaRef, TemplateDecl *  Template, SourceLocation  TemplateLoc, SourceLocation  RAngleLoc, TemplateTemplateParmDecl *  Param, ArrayRef< TemplateArgument >  SugaredConverted, ArrayRef< TemplateArgument >  CanonicalConverted, NestedNameSpecifierLoc &  QualifierLoc  )

static

Substitute template arguments into the default template argument for the given template template parameter.

Parameters

SemaRef	the semantic analysis object for which we are performing the substitution.
Template	the template that we are synthesizing template arguments for.
TemplateLoc	the location of the template name that started the template-id we are checking.
RAngleLoc	the location of the right angle bracket ('>') that terminates the template-id.
Param	the template template parameter whose default we are substituting into.
Converted	the list of template arguments provided for template parameters that precede Param in the template parameter list.
QualifierLoc	Will be set to the nested-name-specifier (with source-location information) that precedes the template name.

Returns

the substituted template argument, or NULL if an error occurred.

Definition at line 5390 of file SemaTemplate.cpp.

References clang::MultiLevelTemplateArgumentList::addOuterTemplateArguments(), clang::TemplateArgumentLoc::getArgument(), clang::TemplateArgument::getAsTemplate(), clang::Decl::getDeclContext(), clang::TemplateTemplateParmDecl::getDefaultArgument(), clang::TemplateTemplateParmDecl::getDepth(), clang::TemplateArgumentLoc::getTemplateNameLoc(), clang::TemplateArgumentLoc::getTemplateQualifierLoc(), clang::Sema::InstantiatingTemplate::isInvalid(), clang::Sema::SubstNestedNameSpecifierLoc(), and clang::Sema::SubstTemplateName().

SubstDefaultTemplateArgument() [3/3]

static TypeSourceInfo * SubstDefaultTemplateArgument ( Sema &  SemaRef, TemplateDecl *  Template, SourceLocation  TemplateLoc, SourceLocation  RAngleLoc, TemplateTypeParmDecl *  Param, ArrayRef< TemplateArgument >  SugaredConverted, ArrayRef< TemplateArgument >  CanonicalConverted  )

static

Substitute template arguments into the default template argument for the given template type parameter.

Parameters

SemaRef	the semantic analysis object for which we are performing the substitution.
Template	the template that we are synthesizing template arguments for.
TemplateLoc	the location of the template name that started the template-id we are checking.
RAngleLoc	the location of the right angle bracket ('>') that terminates the template-id.
Param	the template template parameter whose default we are substituting into.
Converted	the list of template arguments provided for template parameters that precede Param in the template parameter list.

Returns

the substituted template argument, or NULL if an error occurred.

Definition at line 5285 of file SemaTemplate.cpp.

References clang::MultiLevelTemplateArgumentList::addOuterTemplateArguments(), clang::Decl::getDeclContext(), clang::NamedDecl::getDeclName(), clang::TemplateTypeParmDecl::getDefaultArgumentInfo(), clang::TemplateTypeParmDecl::getDefaultArgumentLoc(), clang::TemplateTypeParmDecl::getDepth(), clang::TypeSourceInfo::getType(), clang::Type::isInstantiationDependentType(), clang::Sema::InstantiatingTemplate::isInvalid(), and clang::Sema::SubstType().

Referenced by clang::Sema::CheckTemplateArgumentList(), and clang::Sema::SubstDefaultTemplateArgumentIfAvailable().

translateTemplateArgument()

static TemplateArgumentLoc translateTemplateArgument ( Sema &  SemaRef, const ParsedTemplateArgument &  Arg  )

static

Definition at line 924 of file SemaTemplate.cpp.

References clang::Sema::Context, clang::OpaquePtr< PtrTy >::get(), clang::ParsedTemplateArgument::getAsExpr(), clang::ParsedTemplateArgument::getAsTemplate(), clang::ParsedTemplateArgument::getAsType(), clang::ParsedTemplateArgument::getEllipsisLoc(), clang::ParsedTemplateArgument::getKind(), clang::ParsedTemplateArgument::getLocation(), clang::ParsedTemplateArgument::getScopeSpec(), clang::ASTContext::getTrivialTypeSourceInfo(), clang::Sema::GetTypeFromParser(), clang::CXXScopeSpec::getWithLocInContext(), clang::SourceLocation::isValid(), clang::ParsedTemplateArgument::NonType, clang::ParsedTemplateArgument::Template, and clang::ParsedTemplateArgument::Type.

Referenced by clang::Sema::ActOnTemplateTemplateParameter(), and clang::Sema::translateTemplateArguments().