#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/DynamicRecursiveASTVisitor.h"#include "clang/AST/Expr.h"#include "clang/AST/ExprCXX.h"#include "clang/AST/NestedNameSpecifier.h"#include "clang/AST/TemplateBase.h"#include "clang/AST/TemplateName.h"#include "clang/AST/Type.h"#include "clang/AST/TypeLoc.h"#include "clang/AST/TypeOrdering.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/Basic/TemplateKinds.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 "llvm/Support/SaveAndRestore.h"#include <algorithm>#include <cassert>#include <optional>#include <tuple>#include <type_traits>#include <utility>#include "clang/AST/TypeNodes.inc"Go to the source code of this file.
Classes | |
| class | NonTypeOrVarTemplateParmDecl |
| struct | clang::DeducedPack |
| A pack that we're currently deducing. More... | |
| struct | IsPartialSpecialization< T > |
| struct | IsPartialSpecialization< ClassTemplatePartialSpecializationDecl > |
| struct | IsPartialSpecialization< VarTemplatePartialSpecializationDecl > |
Namespaces | |
| namespace | clang |
| Top level wrappers for InstallAPI frontend operations. | |
Macros | |
| #define | NON_CANONICAL_TYPE(Class, Base) |
| #define | TYPE(Class, Base) |
| #define | TYPE(Class, Base) |
| #define | ABSTRACT_TYPE(Class, Base) |
| #define | DEPENDENT_TYPE(Class, Base) |
| #define | NON_CANONICAL_TYPE(Class, Base) |
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 | PartialOrderingKind { None , NonCall , Call } |
| The kind of PartialOrdering we're performing template argument deduction for (C++11 [temp.deduct.partial]). More... | |
| enum class | PackFold { ParameterToArgument , ArgumentToParameter , Both } |
| What directions packs are allowed to match non-packs. More... | |
| enum class | MoreSpecializedTrailingPackTieBreakerResult { Equal , Less , More } |
Functions | |
| static TemplateDeductionResult | DeduceTemplateArgumentsByTypeMatch (Sema &S, TemplateParameterList *TemplateParams, QualType P, QualType A, TemplateDeductionInfo &Info, SmallVectorImpl< DeducedTemplateArgument > &Deduced, unsigned TDF, PartialOrderingKind POK, bool DeducedFromArrayBound, bool *HasDeducedAnyParam) |
| Deduce the template arguments by comparing the parameter type and the argument type (C++ [temp.deduct.type]). | |
| static TemplateDeductionResult | DeduceTemplateArguments (Sema &S, TemplateParameterList *TemplateParams, ArrayRef< TemplateArgument > Ps, ArrayRef< TemplateArgument > As, TemplateDeductionInfo &Info, SmallVectorImpl< DeducedTemplateArgument > &Deduced, bool NumberOfArgumentsMustMatch, bool PartialOrdering, PackFold PackFold, bool *HasDeducedAnyParam) |
| 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. | |
| 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. | |
| static const Expr * | unwrapExpressionForDeduction (const Expr *E) |
| static NonTypeOrVarTemplateParmDecl | getDeducedNTTParameterFromExpr (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. | |
| static const NonTypeOrVarTemplateParmDecl | getDeducedNTTParameterFromExpr (TemplateDeductionInfo &Info, Expr *E) |
| static bool | isSameDeclaration (Decl *X, Decl *Y) |
| Determine whether two declaration pointers refer to the same declaration. | |
| static DeducedTemplateArgument | checkDeducedTemplateArguments (ASTContext &Context, const DeducedTemplateArgument &X, const DeducedTemplateArgument &Y, bool AggregateCandidateDeduction=false) |
| Verify that the given, deduced template arguments are compatible. | |
| static TemplateDeductionResult | DeduceNonTypeTemplateArgument (Sema &S, TemplateParameterList *TemplateParams, const NonTypeOrVarTemplateParmDecl NTTP, const DeducedTemplateArgument &NewDeduced, QualType ValueType, TemplateDeductionInfo &Info, bool PartialOrdering, SmallVectorImpl< DeducedTemplateArgument > &Deduced, bool *HasDeducedAnyParam) |
| Deduce the value of the given non-type template parameter as the given deduced template argument. | |
| static TemplateDeductionResult | DeduceNonTypeTemplateArgument (Sema &S, TemplateParameterList *TemplateParams, NonTypeOrVarTemplateParmDecl NTTP, const llvm::APSInt &Value, QualType ValueType, bool DeducedFromArrayBound, TemplateDeductionInfo &Info, bool PartialOrdering, SmallVectorImpl< DeducedTemplateArgument > &Deduced, bool *HasDeducedAnyParam) |
| Deduce the value of the given non-type template parameter from the given integral constant. | |
| static TemplateDeductionResult | DeduceNullPtrTemplateArgument (Sema &S, TemplateParameterList *TemplateParams, NonTypeOrVarTemplateParmDecl NTTP, QualType NullPtrType, TemplateDeductionInfo &Info, bool PartialOrdering, SmallVectorImpl< DeducedTemplateArgument > &Deduced, bool *HasDeducedAnyParam) |
| Deduce the value of the given non-type template parameter from the given null pointer template argument type. | |
| static TemplateDeductionResult | DeduceNonTypeTemplateArgument (Sema &S, TemplateParameterList *TemplateParams, NonTypeOrVarTemplateParmDecl NTTP, Expr *Value, TemplateDeductionInfo &Info, bool PartialOrdering, SmallVectorImpl< DeducedTemplateArgument > &Deduced, bool *HasDeducedAnyParam) |
| Deduce the value of the given non-type template parameter from the given type- or value-dependent expression. | |
| static TemplateDeductionResult | DeduceNonTypeTemplateArgument (Sema &S, TemplateParameterList *TemplateParams, NonTypeOrVarTemplateParmDecl NTTP, ValueDecl *D, QualType T, TemplateDeductionInfo &Info, bool PartialOrdering, SmallVectorImpl< DeducedTemplateArgument > &Deduced, bool *HasDeducedAnyParam) |
| Deduce the value of the given non-type template parameter from the given declaration. | |
| static TemplateDeductionResult | DeduceTemplateArguments (Sema &S, TemplateParameterList *TemplateParams, TemplateName Param, TemplateName Arg, TemplateDeductionInfo &Info, ArrayRef< TemplateArgument > DefaultArguments, bool PartialOrdering, SmallVectorImpl< DeducedTemplateArgument > &Deduced, bool *HasDeducedAnyParam) |
| static const TemplateSpecializationType * | getLastTemplateSpecType (QualType QT) |
| Deduce the template arguments by comparing the template parameter type (which is a template-id) with the template argument type. | |
| static TemplateDeductionResult | DeduceTemplateSpecArguments (Sema &S, TemplateParameterList *TemplateParams, const QualType P, QualType A, TemplateDeductionInfo &Info, bool PartialOrdering, SmallVectorImpl< DeducedTemplateArgument > &Deduced, bool *HasDeducedAnyParam) |
| 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. | |
| static TemplateParameter | makeTemplateParameter (Decl *D) |
| Helper function to build a TemplateParameter when we don't know its type statically. | |
| template<class T> | |
| static TemplateDeductionResult | DeduceForEachType (Sema &S, TemplateParameterList *TemplateParams, ArrayRef< QualType > Params, ArrayRef< QualType > Args, TemplateDeductionInfo &Info, SmallVectorImpl< DeducedTemplateArgument > &Deduced, PartialOrderingKind POK, bool FinishingDeduction, T &&DeductFunc) |
| static TemplateDeductionResult | DeduceTemplateArguments (Sema &S, TemplateParameterList *TemplateParams, ArrayRef< QualType > Params, ArrayRef< QualType > Args, TemplateDeductionInfo &Info, SmallVectorImpl< DeducedTemplateArgument > &Deduced, unsigned TDF, PartialOrderingKind POK, bool *HasDeducedAnyParam, llvm::SmallBitVector *HasDeducedParam) |
| 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). | |
| static bool | hasInconsistentOrSupersetQualifiersOf (QualType ParamType, QualType ArgType) |
| Determine whether the parameter has qualifiers that the argument lacks. | |
| static unsigned | getFirstInnerIndex (FunctionTemplateDecl *FTD) |
| Get the index of the first template parameter that was originally from the innermost template-parameter-list. | |
| static bool | isForwardingReference (QualType Param, unsigned FirstInnerIndex) |
| Determine whether a type denotes a forwarding reference. | |
| static TemplateDeductionResult | DeduceTemplateBases (Sema &S, const CXXRecordDecl *RD, TemplateParameterList *TemplateParams, QualType P, TemplateDeductionInfo &Info, bool PartialOrdering, SmallVectorImpl< DeducedTemplateArgument > &Deduced, bool *HasDeducedAnyParam) |
| Attempt to deduce the template arguments by checking the base types according to (C++20 [temp.deduct.call] p4b3. | |
| static PartialOrderingKind | degradeCallPartialOrderingKind (PartialOrderingKind POK) |
| When propagating a partial ordering kind into a NonCall context, this is used to downgrade a 'Call' into a 'NonCall', so that the kind still reflects whether we are in a partial ordering context. | |
| static TemplateDeductionResult | DeduceTemplateArguments (Sema &S, TemplateParameterList *TemplateParams, const TemplateArgument &P, TemplateArgument A, TemplateDeductionInfo &Info, bool PartialOrdering, SmallVectorImpl< DeducedTemplateArgument > &Deduced, bool *HasDeducedAnyParam) |
| static bool | hasTemplateArgumentForDeduction (ArrayRef< TemplateArgument > &Args, unsigned &ArgIdx) |
| Determine whether there is a template argument to be used for deduction. | |
| 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. | |
| static bool | ConvertDeducedTemplateArgument (Sema &S, NamedDecl *Param, DeducedTemplateArgument Arg, NamedDecl *Template, TemplateDeductionInfo &Info, bool IsDeduced, Sema::CheckTemplateArgumentInfo &CTAI) |
| Convert the given deduced template argument and add it to the set of fully-converted template arguments. | |
| static TemplateDeductionResult | ConvertDeducedTemplateArguments (Sema &S, NamedDecl *Template, TemplateParameterList *TemplateParams, bool IsDeduced, SmallVectorImpl< DeducedTemplateArgument > &Deduced, TemplateDeductionInfo &Info, Sema::CheckTemplateArgumentInfo &CTAI, LocalInstantiationScope *CurrentInstantiationScope, unsigned NumAlreadyConverted, bool *IsIncomplete) |
| static DeclContext * | getAsDeclContextOrEnclosing (Decl *D) |
| static TemplateDeductionResult | CheckDeducedArgumentConstraints (Sema &S, NamedDecl *Template, ArrayRef< TemplateArgument > SugaredDeducedArgs, ArrayRef< TemplateArgument > CanonicalDeducedArgs, TemplateDeductionInfo &Info) |
| static TemplateDeductionResult | CheckDeducedTemplateArgumentList (Sema &S, TemplateDecl *Template, ArrayRef< TemplateArgumentLoc > Ps, ArrayRef< TemplateArgument > As, const MultiLevelTemplateArgumentList &MLTAL, TemplateDeductionInfo &Info) |
| static TemplateDeductionResult | FinishTemplateArgumentDeduction (Sema &S, NamedDecl *Entity, TemplateParameterList *EntityTPL, TemplateDecl *Template, bool PartialOrdering, ArrayRef< TemplateArgumentLoc > Ps, ArrayRef< TemplateArgument > As, SmallVectorImpl< DeducedTemplateArgument > &Deduced, TemplateDeductionInfo &Info, bool CopyDeducedArgs) |
| Complete template argument deduction. | |
| static TemplateDeductionResult | FinishTemplateArgumentDeduction (Sema &S, NamedDecl *Entity, TemplateParameterList *EntityTPL, TemplateDecl *Template, bool PartialOrdering, ArrayRef< TemplateArgument > Ps, ArrayRef< TemplateArgument > As, SmallVectorImpl< DeducedTemplateArgument > &Deduced, TemplateDeductionInfo &Info, bool CopyDeducedArgs) |
| static TemplateDeductionResult | FinishTemplateArgumentDeduction (Sema &S, TemplateDecl *TD, SmallVectorImpl< DeducedTemplateArgument > &Deduced, TemplateDeductionInfo &Info) |
| Complete template argument deduction for DeduceTemplateArgumentsFromType. | |
| 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]. | |
| static bool | isSimpleTemplateIdType (QualType T) |
| Determine whether the given type T is a simple-template-id type. | |
| 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. | |
| static UnsignedOrNone | 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. | |
| static TemplateDeductionResult | instantiateExplicitSpecifierDeferred (Sema &S, FunctionDecl *Specialization, const MultiLevelTemplateArgumentList &SubstArgs, TemplateDeductionInfo &Info, FunctionTemplateDecl *FunctionTemplate, ArrayRef< TemplateArgument > DeducedArgs) |
| static void | AddFriendTemplateDeductionCandidate (Sema &S, TemplateDecl *TD, TemplateDeductionInfo &Info, TemplateDeductionResult Result, TemplateSpecCandidateSet *FailedTSC) |
| 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. | |
| static QualType | ResolveOverloadForDeduction (Sema &S, TemplateParameterList *TemplateParams, Expr *Arg, QualType ParamType, bool ParamWasReference, TemplateSpecCandidateSet *FailedTSC=nullptr) |
| Apply the deduction rules for overload sets. | |
| 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]. | |
| 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. | |
| 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. | |
| 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 TemplateDeductionResult | CheckDeductionConsistency (Sema &S, FunctionTemplateDecl *FTD, UnsignedOrNone ArgIdx, QualType P, QualType A, ArrayRef< TemplateArgument > DeducedArgs, bool CheckConsistency) |
| template<class T> | |
| static TemplateDeductionResult | FinishTemplateArgumentDeduction (Sema &S, FunctionTemplateDecl *FTD, SmallVectorImpl< DeducedTemplateArgument > &Deduced, TemplateDeductionInfo &Info, T &&CheckDeductionConsistency) |
| static bool | isAtLeastAsSpecializedAs (Sema &S, SourceLocation Loc, FunctionTemplateDecl *FT1, FunctionTemplateDecl *FT2, TemplatePartialOrderingContext TPOC, ArrayRef< QualType > Args1, ArrayRef< QualType > Args2, bool Args1Offset) |
Determine whether the function template FT1 is at least as specialized as FT2. | |
| static MoreSpecializedTrailingPackTieBreakerResult | getMoreSpecializedTrailingPackTieBreaker (const TemplateSpecializationType *TST1, const TemplateSpecializationType *TST2) |
| template<typename TemplateLikeDecl> | |
| static bool | isAtLeastAsSpecializedAs (Sema &S, QualType T1, QualType T2, TemplateLikeDecl *P2, TemplateDecl *Template, TemplateDeductionInfo &Info) |
| Determine whether one template specialization, P1, is at least as specialized than another, P2. | |
| 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. | |
| 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. | |
| 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. | |
| 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. | |
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 ) |
◆ NON_CANONICAL_TYPE [2/2]
| #define NON_CANONICAL_TYPE | ( | Class, | |
| Base ) |
◆ TYPE [1/2]
| #define TYPE | ( | Class, | |
| Base ) |
◆ TYPE [2/2]
| #define TYPE | ( | Class, | |
| Base ) |
Enumeration Type Documentation
◆ MoreSpecializedTrailingPackTieBreakerResult
|
strong |
| Enumerator | |
|---|---|
| Equal | |
| Less | |
| More | |
Definition at line 6011 of file SemaTemplateDeduction.cpp.
◆ PackFold
|
strong |
What directions packs are allowed to match non-packs.
| Enumerator | |
|---|---|
| ParameterToArgument | |
| ArgumentToParameter | |
| Both | |
Definition at line 130 of file SemaTemplateDeduction.cpp.
◆ PartialOrderingKind
|
strong |
The kind of PartialOrdering we're performing template argument deduction for (C++11 [temp.deduct.partial]).
| Enumerator | |
|---|---|
| None | |
| NonCall | |
| Call | |
Definition at line 120 of file SemaTemplateDeduction.cpp.
Function Documentation
◆ AddFriendTemplateDeductionCandidate()
|
static |
Definition at line 4123 of file SemaTemplateDeduction.cpp.
References clang::TemplateSpecCandidateSet::addCandidate(), clang::AS_public, clang::Sema::Context, clang::declaresSameEntity(), clang::TemplateDecl::getTemplatedDecl(), clang::DeclAccessPair::make(), clang::MakeDeductionFailureInfo(), and clang::TemplateSpecCandidate::set().
Referenced by clang::Sema::DeduceTemplateArguments().
◆ AdjustFunctionParmAndArgTypesForDeduction()
|
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 4409 of file SemaTemplateDeduction.cpp.
References clang::Type::castAs(), clang::Sema::Context, clang::ASTContext::getAddrSpaceQualType(), clang::Type::getAs(), clang::Sema::getCompletedType(), clang::ASTContext::getDecayedType(), clang::ASTContext::getDefaultOpenCLPointeeAddrSpace(), clang::Sema::getLangOpts(), clang::ASTContext::getLValueReferenceType(), clang::PointerType::getPointeeType(), clang::ReferenceType::getPointeeType(), clang::QualType::getUnqualifiedType(), clang::QualType::hasQualifiers(), isForwardingReference(), clang::Expr::Classification::isLValue(), isSimpleTemplateIdType(), clang::ASTContext::OverloadTy, ResolveOverloadForDeduction(), clang::TDF_DerivedClass, clang::TDF_IgnoreQualifiers, clang::TDF_ParamWithReferenceType, and clang::TDF_SkipNonDependent.
Referenced by DeduceTemplateArgumentsFromCallArgument().
◆ CheckDeducedArgumentConstraints()
|
static |
Definition at line 3181 of file SemaTemplateDeduction.cpp.
References clang::sema::TemplateDeductionInfo::AssociatedConstraintsSatisfaction, clang::cast(), clang::Sema::CheckConstraintSatisfaction(), clang::ConstraintsNotSatisfied, clang::Sema::Context, clang::TemplateArgumentList::CreateCopy(), clang::sema::TemplateDeductionInfo::getLocation(), clang::Sema::getTemplateInstantiationArgs(), clang::ConstraintSatisfaction::IsSatisfied, clang::MultiLevelTemplateArgumentList::replaceInnermostTemplateArguments(), clang::sema::TemplateDeductionInfo::reset(), clang::Success, and clang::Template.
Referenced by FinishTemplateArgumentDeduction().
◆ CheckDeducedPlaceholderConstraints()
|
static |
Definition at line 5351 of file SemaTemplateDeduction.cpp.
References clang::TemplateArgumentListInfo::addArgument(), clang::C, clang::cast(), clang::Sema::CheckConstraintSatisfaction(), clang::Sema::CheckTemplateArgumentList(), clang::Concept, clang::Sema::Context, clang::Deduced, clang::SemaBase::Diag(), clang::Sema::DiagnoseUnsatisfiedConstraint(), clang::TypeLoc::getLocalSourceRange(), clang::Sema::getPrintingPolicy(), clang::ASTContext::getTrivialTypeSourceInfo(), clang::ConstraintSatisfaction::IsSatisfied, and clang::Sema::CheckTemplateArgumentInfo::SugaredConverted.
Referenced by clang::Sema::DeduceAutoType().
◆ CheckDeducedTemplateArgumentList()
|
static |
Definition at line 3229 of file SemaTemplateDeduction.cpp.
References clang::Sema::CheckTemplateArgumentList(), clang::ConstraintsNotSatisfied, clang::Sema::Context, clang::sema::TemplateDeductionInfo::FirstArg, clang::TemplateParameterList::getLAngleLoc(), clang::TemplateParameterList::getParam(), clang::TemplateParameterList::getRAngleLoc(), clang::TemplateArgument::isPackExpansion(), clang::ASTContext::isSameTemplateArgument(), makeTemplateParameter(), clang::NonDeducedMismatch, clang::None, clang::TemplateArgument::Pack, clang::sema::TemplateDeductionInfo::Param, clang::sema::TemplateDeductionInfo::SecondArg, clang::TemplateArgumentListInfo::size(), clang::TemplateParameterList::size(), clang::SubstitutionFailure, clang::Sema::SubstTemplateArguments(), clang::Success, clang::Sema::CheckTemplateArgumentInfo::SugaredConverted, clang::Template, and X.
Referenced by clang::Sema::DeduceTemplateArguments(), and FinishTemplateArgumentDeduction().
◆ checkDeducedTemplateArguments()
|
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 278 of file SemaTemplateDeduction.cpp.
References checkDeducedTemplateArguments(), clang::TemplateArgument::CreatePackCopy(), clang::TemplateArgument::Declaration, clang::TemplateArgument::Expression, clang::TemplateArgument::getAsDecl(), clang::TemplateArgument::getAsExpr(), clang::TemplateArgument::getAsIntegral(), clang::TemplateArgument::getAsTemplate(), clang::TemplateArgument::getAsTemplateOrTemplatePattern(), clang::TemplateArgument::getAsType(), clang::TemplateArgument::getKind(), clang::TemplateArgument::getNonTypeTemplateArgumentType(), clang::TemplateArgument::getNullPtrType(), clang::Expr::getType(), clang::TemplateArgument::Integral, clang::QualType::isNull(), clang::TemplateArgument::isNull(), isSameDeclaration(), clang::TemplateArgument::Null, clang::TemplateArgument::NullPtr, clang::TemplateArgument::Pack, clang::TemplateArgument::pack_begin(), clang::TemplateArgument::pack_end(), clang::TemplateArgument::pack_size(), clang::Stmt::Profile(), clang::TemplateArgument::StructuralValue, clang::TemplateArgument::Template, clang::TemplateArgument::TemplateExpansion, clang::TemplateArgument::Type, clang::DeducedTemplateArgument::wasDeducedFromArrayBound(), and X.
Referenced by checkDeducedTemplateArguments(), DeduceNonTypeTemplateArgument(), DeduceTemplateArguments(), and DeduceTemplateArgumentsByTypeMatch().
◆ CheckDeductionConsistency()
|
static |
Definition at line 5740 of file SemaTemplateDeduction.cpp.
References clang::Sema::Context, clang::Type::getAsCanonical(), clang::QualType::getCanonicalType(), clang::NamedDecl::getDeclName(), clang::Decl::getLocation(), clang::QualType::getNonReferenceType(), getPackIndexForParam(), clang::FunctionTemplateDecl::getTemplatedDecl(), clang::ASTContext::getUnqualifiedArrayType(), clang::ASTContext::hasSameType(), clang::Incomplete, clang::isa(), clang::QualType::isNull(), clang::NonDeducedMismatch, clang::PackIndex, clang::SubstitutionFailure, clang::Sema::SubstType(), and clang::Success.
Referenced by FinishTemplateArgumentDeduction().
◆ CheckOriginalCallArgDeduction()
|
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 3738 of file SemaTemplateDeduction.cpp.
References clang::Sema::OriginalCallArg::ArgIdx, clang::sema::TemplateDeductionInfo::CallArgIndex, clang::Qualifiers::compatiblyIncludes(), clang::Sema::Context, clang::Sema::OriginalCallArg::DecomposedParam, clang::DeducedMismatch, clang::DeducedMismatchNested, clang::sema::TemplateDeductionInfo::FirstArg, clang::Type::getAs(), clang::Sema::getASTContext(), clang::QualType::getAtomicUnqualifiedType(), clang::Sema::getLangOpts(), clang::sema::TemplateDeductionInfo::getLocation(), clang::Qualifiers::getObjCLifetime(), clang::Type::getPointeeType(), clang::QualType::getQualifiers(), clang::QualType::getUnqualifiedType(), clang::Qualifiers::hasConst(), clang::Type::isAnyPointerType(), clang::Sema::IsDerivedFrom(), clang::Sema::IsFunctionConversion(), clang::Type::isFunctionType(), clang::Type::isMemberPointerType(), clang::Sema::IsQualificationConversion(), clang::Type::isRecordType(), isSimpleTemplateIdType(), clang::Qualifiers::OCL_ExplicitNone, clang::Qualifiers::OCL_None, clang::Qualifiers::OCL_Strong, clang::Sema::OriginalCallArg::OriginalArgType, clang::Sema::OriginalCallArg::OriginalParamType, clang::sema::TemplateDeductionInfo::SecondArg, clang::Qualifiers::setObjCLifetime(), and clang::Success.
Referenced by clang::Sema::DeduceAutoType(), and clang::Sema::FinishTemplateArgumentDeduction().
◆ ConvertDeducedTemplateArgument()
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Convert the given deduced template argument and add it to the set of fully-converted template arguments.
Definition at line 2928 of file SemaTemplateDeduction.cpp.
References _2, clang::Sema::CheckTemplateArgumentInfo::CanonicalConverted, clang::Sema::CheckTemplateArgument(), clang::Sema::Context, clang::TemplateArgument::CreatePackCopy(), clang::Sema::CTAK_Deduced, clang::Sema::CTAK_DeducedFromArrayBound, clang::Sema::CTAK_Specified, clang::Sema::CurContext, clang::SemaBase::Diag(), clang::TemplateArgument::getKind(), clang::sema::TemplateDeductionInfo::getLocation(), clang::Sema::getTrivialTemplateArgumentLoc(), clang::Sema::InstantiatingTemplate::isInvalid(), clang::Sema::CheckTemplateArgumentInfo::MatchingTTP, clang::TemplateArgument::Pack, clang::TemplateArgument::pack_elements(), clang::DeducedTemplateArgument::setDeducedFromArrayBound(), clang::sema::TemplateDeductionInfo::setStrictPackMatch(), clang::Sema::CheckTemplateArgumentInfo::StrictPackMatch, clang::Sema::SubstTemplateParams(), clang::Sema::SubstType(), clang::Sema::CheckTemplateArgumentInfo::SugaredConverted, clang::Template, and clang::DeducedTemplateArgument::wasDeducedFromArrayBound().
Referenced by ConvertDeducedTemplateArguments().
◆ ConvertDeducedTemplateArguments()
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- Parameters
-
IsIncomplete When used, we only consider template parameters that were deduced, disregarding any default arguments. After the function finishes, the object pointed at will contain a value indicating if the conversion was actually incomplete.
Definition at line 3030 of file SemaTemplateDeduction.cpp.
References _2, clang::Sema::CheckTemplateArgumentInfo::CanonicalConverted, clang::Sema::CheckTemplateArgument(), clang::Sema::Context, ConvertDeducedTemplateArgument(), clang::TemplateArgumentList::CreateCopy(), clang::Sema::CTAK_Specified, clang::Deduced, clang::TemplateArgumentLoc::getArgument(), clang::ASTContext::getCanonicalTemplateArgument(), clang::Decl::getDeclContext(), clang::SourceRange::getEnd(), clang::Sema::getLangOpts(), clang::Decl::getLocation(), clang::TemplateParameterList::getParam(), clang::DeclContext::getParent(), clang::LocalInstantiationScope::getPartiallySubstitutedPack(), clang::TemplateDecl::getSourceRange(), clang::Incomplete, clang::isa(), clang::TemplateArgument::isNull(), makeTemplateParameter(), clang::Sema::CheckTemplateArgumentInfo::MatchingTTP, clang::sema::TemplateDeductionInfo::Param, clang::Sema::CheckTemplateArgumentInfo::PartialOrdering, clang::sema::TemplateDeductionInfo::reset(), clang::LocalInstantiationScope::ResetPartiallySubstitutedPack(), clang::TemplateParameterList::size(), clang::Sema::CheckTemplateArgumentInfo::StrictPackMatch, clang::Sema::SubstDefaultTemplateArgumentIfAvailable(), clang::SubstitutionFailure, clang::Success, clang::Sema::CheckTemplateArgumentInfo::SugaredConverted, and clang::Template.
Referenced by clang::Sema::DeduceTemplateArguments(), clang::Sema::FinishTemplateArgumentDeduction(), FinishTemplateArgumentDeduction(), FinishTemplateArgumentDeduction(), and FinishTemplateArgumentDeduction().
◆ DeduceForEachType()
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Definition at line 1195 of file SemaTemplateDeduction.cpp.
References Call, clang::Deduced, clang::QualType::getUnqualifiedType(), clang::isa(), clang::MiscellaneousDeductionFailure, clang::Success, and clang::T.
◆ DeduceFromInitializerList()
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Attempt template argument deduction from an initializer list deemed to be an argument in a function call.
Definition at line 4519 of file SemaTemplateDeduction.cpp.
References clang::Sema::Context, clang::Deduced, DeduceNonTypeTemplateArgument(), DeduceTemplateArgumentsFromCallArgument(), clang::ASTContext::getAsArrayType(), clang::Sema::getASTContext(), getDeducedNTTParameterFromExpr(), clang::ASTContext::getIntWidth(), clang::InitListExpr::getNumInits(), clang::InitListExpr::getNumInitsWithEmbedExpanded(), clang::ASTContext::getSizeType(), clang::InitListExpr::inits(), clang::isa(), clang::Type::isDependentType(), clang::Sema::isStdInitializerList(), clang::Success, and clang::T.
Referenced by DeduceTemplateArgumentsFromCallArgument().
◆ DeduceNonTypeTemplateArgument() [1/4]
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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 463 of file SemaTemplateDeduction.cpp.
References NonTypeOrVarTemplateParmDecl::asTemplateParam(), checkDeducedTemplateArguments(), clang::Sema::Context, clang::Deduced, DeduceTemplateArgumentsByTypeMatch(), clang::sema::TemplateDeductionInfo::FirstArg, clang::ASTContext::getAdjustedParameterType(), clang::sema::TemplateDeductionInfo::getDeducedDepth(), NonTypeOrVarTemplateParmDecl::getDepth(), NonTypeOrVarTemplateParmDecl::getIndex(), clang::Sema::getLangOpts(), clang::ASTContext::getLValueReferenceType(), clang::ASTContext::getRValueReferenceType(), NonTypeOrVarTemplateParmDecl::getType(), clang::Inconsistent, NonTypeOrVarTemplateParmDecl::isExpandedParameterPack(), clang::Type::isReferenceType(), clang::Type::isRValueReferenceType(), NonCall, None, clang::sema::TemplateDeductionInfo::Param, clang::PartialOrdering, clang::sema::TemplateDeductionInfo::SecondArg, clang::Success, clang::TDF_IgnoreQualifiers, clang::TDF_SkipNonDependent, and clang::DeducedTemplateArgument::wasDeducedFromArrayBound().
Referenced by DeduceFromInitializerList(), DeduceNonTypeTemplateArgument(), DeduceNonTypeTemplateArgument(), DeduceNonTypeTemplateArgument(), DeduceNullPtrTemplateArgument(), DeduceTemplateArguments(), and DeduceTemplateArgumentsByTypeMatch().
◆ DeduceNonTypeTemplateArgument() [2/4]
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Deduce the value of the given non-type template parameter from the given integral constant.
Definition at line 519 of file SemaTemplateDeduction.cpp.
References clang::Sema::Context, clang::Deduced, DeduceNonTypeTemplateArgument(), and clang::PartialOrdering.
◆ DeduceNonTypeTemplateArgument() [3/4]
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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 558 of file SemaTemplateDeduction.cpp.
References clang::Deduced, DeduceNonTypeTemplateArgument(), clang::Value::getType(), and clang::PartialOrdering.
◆ DeduceNonTypeTemplateArgument() [4/4]
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Deduce the value of the given non-type template parameter from the given declaration.
- Returns
- true if deduction succeeded, false otherwise.
Definition at line 573 of file SemaTemplateDeduction.cpp.
References clang::Deduced, DeduceNonTypeTemplateArgument(), New, clang::PartialOrdering, and clang::T.
◆ DeduceNullPtrTemplateArgument()
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Deduce the value of the given non-type template parameter from the given null pointer template argument type.
Definition at line 535 of file SemaTemplateDeduction.cpp.
References clang::Sema::Context, clang::Deduced, DeduceNonTypeTemplateArgument(), clang::ActionResult< PtrTy, Compress >::get(), NonTypeOrVarTemplateParmDecl::getLocation(), clang::Value::getType(), clang::Sema::ImpCastExprToType(), clang::Type::isMemberPointerType(), clang::ASTContext::NullPtrTy, and clang::PartialOrdering.
Referenced by DeduceTemplateArguments().
◆ DeduceTemplateArguments() [1/5]
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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 3407 of file SemaTemplateDeduction.cpp.
References clang::Deduced, DeduceTemplateArguments(), clang::sema::TemplateDeductionInfo::getLocation(), clang::Sema::SFINAETrap::hasErrorOccurred(), clang::InstantiationDepth, clang::Invalid, clang::Sema::InstantiatingTemplate::isInvalid(), ParameterToArgument, clang::Sema::runWithSufficientStackSpace(), clang::SubstitutionFailure, clang::Success, clang::T, clang::Sema::Unevaluated, and clang::Unevaluated.
◆ DeduceTemplateArguments() [2/5]
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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 Args The list of argument types 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]). HasDeducedAnyParam If set, the object pointed at will indicate whether any template parameter was deduced. HasDeducedParam If set, the bit vector will be used to represent which template parameters were deduced, in order.
- 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 1343 of file SemaTemplateDeduction.cpp.
References clang::Deduced, and DeduceTemplateArgumentsByTypeMatch().
◆ DeduceTemplateArguments() [3/5]
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Definition at line 2736 of file SemaTemplateDeduction.cpp.
References ArgumentToParameter, Both, clang::Deduced, DeduceTemplateArguments(), hasPackExpansionBeforeEnd(), hasTemplateArgumentForDeduction(), clang::MiscellaneousDeductionFailure, ParameterToArgument, clang::PartialOrdering, clang::sema::TemplateDeductionInfo::setStrictPackMatch(), and clang::Success.
Referenced by DeduceTemplateSpecArguments().
◆ DeduceTemplateArguments() [4/5]
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Definition at line 2566 of file SemaTemplateDeduction.cpp.
References clang::TemplateArgument::Declaration, clang::Deduced, DeduceNonTypeTemplateArgument(), DeduceNullPtrTemplateArgument(), DeduceTemplateArguments(), DeduceTemplateArgumentsByTypeMatch(), clang::TemplateArgument::Expression, clang::sema::TemplateDeductionInfo::FirstArg, clang::TemplateArgument::getAsDecl(), clang::TemplateArgument::getAsExpr(), clang::TemplateArgument::getAsIntegral(), clang::TemplateArgument::getAsTemplate(), clang::TemplateArgument::getAsType(), getDeducedNTTParameterFromExpr(), clang::TemplateArgument::getKind(), clang::TemplateArgument::getNonTypeTemplateArgumentType(), clang::TemplateArgument::getNullPtrType(), clang::TemplateArgument::getPackExpansionPattern(), clang::TemplateArgument::getParamTypeForDecl(), clang::Expr::getType(), clang::Expr::IgnoreImplicitAsWritten(), clang::TemplateArgument::Integral, clang::TemplateArgument::isPackExpansion(), isSameDeclaration(), NonCall, clang::NonDeducedMismatch, None, clang::TemplateArgument::Null, clang::TemplateArgument::NullPtr, clang::TemplateArgument::Pack, clang::PartialOrdering, clang::sema::TemplateDeductionInfo::SecondArg, clang::TemplateArgument::structurallyEquals(), clang::TemplateArgument::StructuralValue, clang::Success, clang::TemplateArgument::Template, clang::TemplateArgument::TemplateExpansion, and clang::TemplateArgument::Type.
◆ DeduceTemplateArguments() [5/5]
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Definition at line 585 of file SemaTemplateDeduction.cpp.
References clang::TemplateParameterList::asArray(), checkDeducedTemplateArguments(), clang::Sema::Context, clang::Deduced, clang::sema::TemplateDeductionInfo::FirstArg, clang::sema::TemplateDeductionInfo::getDeducedDepth(), clang::ASTContext::getDeducedTemplateName(), clang::TemplateDecl::getTemplateParameters(), clang::ASTContext::hasSameTemplateName(), clang::Inconsistent, isParameterPack(), clang::NonDeducedMismatch, clang::sema::TemplateDeductionInfo::Param, clang::PartialOrdering, clang::sema::TemplateDeductionInfo::SecondArg, and clang::Success.
◆ DeduceTemplateArgumentsByTypeMatch()
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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 1596 of file SemaTemplateDeduction.cpp.
References clang::Sema::adjustMemberFunctionCC(), clang::ASTContext::BoolTy, Call, clang::cast(), clang::Type::castAs(), checkDeducedTemplateArguments(), clang::Qualifiers::compatiblyIncludes(), clang::Sema::Context, clang::CT_Can, clang::CT_Cannot, clang::CT_Dependent, clang::Deduced, DeduceNonTypeTemplateArgument(), DeduceTemplateArguments(), DeduceTemplateArgumentsByTypeMatch(), DeduceTemplateBases(), DeduceTemplateSpecArguments(), degradeCallPartialOrderingKind(), clang::sema::TemplateDeductionInfo::FirstArg, clang::QualType::getAddressSpace(), clang::Type::getAs(), clang::ASTContext::getAsArrayType(), clang::Type::getAsCanonical(), clang::ASTContext::getAsConstantArrayType(), clang::Type::getAsCXXRecordDecl(), clang::ASTContext::getAsDependentSizedArrayType(), clang::ASTContext::getAsIncompleteArrayType(), clang::Sema::getASTContext(), clang::ASTContext::getCanonicalTagType(), clang::QualType::getCanonicalType(), clang::Type::getCanonicalTypeInternal(), clang::DependentSizedMatrixType::getColumnExpr(), clang::Qualifiers::getCVRQualifiers(), clang::QualType::getCVRQualifiers(), clang::sema::TemplateDeductionInfo::getDeducedDepth(), getDeducedNTTParameterFromExpr(), NonTypeOrVarTemplateParmDecl::getDepth(), clang::MatrixType::getElementType(), clang::Expr::getIntegerConstantExpr(), clang::Decl::getKind(), clang::Sema::getLangOpts(), clang::sema::TemplateDeductionInfo::getLocation(), clang::ConstantMatrixType::getNumColumns(), clang::ConstantMatrixType::getNumRows(), clang::TemplateParameterList::getParam(), clang::PointerType::getPointeeType(), clang::ReferenceType::getPointeeType(), clang::Type::getPointeeType(), clang::ASTContext::getQualifiedType(), clang::QualType::getQualifiers(), clang::DependentSizedMatrixType::getRowExpr(), clang::ASTContext::getSizeType(), clang::Type::getTypeClass(), clang::ASTContext::getTypeSize(), clang::ASTContext::getUnqualifiedArrayType(), clang::QualType::getUnqualifiedType(), clang::Qualifiers::hasAddressSpace(), hasInconsistentOrSupersetQualifiersOf(), clang::Qualifiers::hasNonTrivialObjCLifetime(), clang::Qualifiers::hasObjCGCAttr(), clang::Qualifiers::hasObjCLifetime(), clang::QualType::hasQualifiers(), clang::ASTContext::hasSameType(), clang::ASTContext::hasSameUnqualifiedType(), clang::IncompletePack, clang::Inconsistent, clang::ASTContext::IntTy, clang::Invalid, clang::isa(), clang::Type::isArrayType(), clang::Sema::isCompleteType(), clang::Type::isDependentType(), isForwardingReference(), clang::Type::isFunctionType(), clang::Decl::isInvalidDecl(), clang::Type::isLValueReferenceType(), clang::QualType::isNull(), clang::Type::isObjCLifetimeType(), clang::Type::isPlaceholderType(), IsPossiblyOpaquelyQualifiedType(), clang::Type::isRecordType(), clang::Sema::isSameOrCompatibleFunctionType(), clang::Qualifiers::isStrictSupersetOf(), clang::isTargetAddressSpace(), clang::Noexcept, clang::NonDeducedMismatch, None, clang::Qualifiers::OCL_ExplicitNone, clang::Qualifiers::OCL_Strong, clang::ASTContext::OverloadTy, clang::sema::TemplateDeductionInfo::Param, clang::Qualifiers::removeAddressSpace(), clang::ASTContext::removeAddrSpaceQualType(), clang::Qualifiers::removeCVRQualifiers(), clang::Qualifiers::removeObjCGCAttr(), clang::Qualifiers::removeObjCLifetime(), clang::sema::TemplateDeductionInfo::SecondArg, clang::Qualifiers::setCVRQualifiers(), clang::Qualifiers::setObjCLifetime(), clang::Success, clang::T, clang::TDF_AllowCompatibleFunctionType, clang::TDF_ArgWithReferenceType, clang::TDF_DerivedClass, clang::TDF_IgnoreQualifiers, clang::TDF_ParamWithReferenceType, clang::TDF_SkipNonDependent, clang::TDF_TopLevelParameterTypeList, clang::toTargetAddressSpace(), clang::Underqualified, clang::ASTContext::UnsignedIntTy, and clang::Qualifiers::withoutObjCLifetime().
Referenced by DeduceNonTypeTemplateArgument(), clang::Sema::DeduceTemplateArguments(), clang::Sema::DeduceTemplateArguments(), DeduceTemplateArguments(), DeduceTemplateArguments(), DeduceTemplateArgumentsByTypeMatch(), DeduceTemplateArgumentsFromCallArgument(), isAtLeastAsSpecializedAs(), isAtLeastAsSpecializedAs(), and ResolveOverloadForDeduction().
◆ DeduceTemplateArgumentsFromCallArgument()
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Perform template argument deduction per [temp.deduct.call] for a single parameter / argument pair.
Definition at line 4591 of file SemaTemplateDeduction.cpp.
References AdjustFunctionParmAndArgTypesForDeduction(), clang::Deduced, DeduceFromInitializerList(), DeduceTemplateArgumentsByTypeMatch(), None, and clang::Success.
Referenced by clang::Sema::DeduceAutoType(), DeduceFromInitializerList(), clang::Sema::DeduceTemplateArguments(), and clang::Sema::DeduceTemplateArguments().
◆ DeduceTemplateBases()
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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 1461 of file SemaTemplateDeduction.cpp.
References clang::CXXRecordDecl::bases(), clang::Deduced, DeduceTemplateSpecArguments(), clang::sema::TemplateDeductionInfo::ForBase, clang::Type::getAsCXXRecordDecl(), clang::Invalid, clang::Match, clang::MiscellaneousDeductionFailure, clang::PartialOrdering, clang::Success, and clang::T.
Referenced by DeduceTemplateArgumentsByTypeMatch().
◆ DeduceTemplateSpecArguments()
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Definition at line 685 of file SemaTemplateDeduction.cpp.
References clang::Type::castAs(), clang::Sema::Context, clang::Deduced, DeduceTemplateArguments(), clang::sema::TemplateDeductionInfo::FirstArg, clang::Type::getAs(), clang::TemplateName::getAsDependentTemplateName(), clang::Type::getAsNonAliasTemplateSpecializationType(), clang::TemplateName::getAsTemplateDecl(), clang::QualType::getCanonicalType(), getLastTemplateSpecType(), clang::isa(), clang::isPackProducingBuiltinTemplateName(), clang::TemplateDecl::isTypeAlias(), clang::NonDeducedMismatch, ParameterToArgument, clang::PartialOrdering, clang::sema::TemplateDeductionInfo::SecondArg, and clang::Success.
Referenced by DeduceTemplateArgumentsByTypeMatch(), and DeduceTemplateBases().
◆ degradeCallPartialOrderingKind()
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When propagating a partial ordering kind into a NonCall context, this is used to downgrade a 'Call' into a 'NonCall', so that the kind still reflects whether we are in a partial ordering context.
Definition at line 1568 of file SemaTemplateDeduction.cpp.
References NonCall.
Referenced by DeduceTemplateArgumentsByTypeMatch().
◆ FinishTemplateArgumentDeduction() [1/4]
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Definition at line 5792 of file SemaTemplateDeduction.cpp.
References clang::Sema::CheckTemplateArgumentInfo::CanonicalConverted, CheckDeductionConsistency(), clang::Sema::Context, ConvertDeducedTemplateArguments(), clang::TemplateArgumentList::CreateCopy(), clang::Deduced, getAsDeclContextOrEnclosing(), clang::TemplateDecl::getTemplateParameters(), clang::sema::TemplateDeductionInfo::reset(), clang::Success, clang::Sema::CheckTemplateArgumentInfo::SugaredConverted, and clang::T.
◆ FinishTemplateArgumentDeduction() [2/4]
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Definition at line 3360 of file SemaTemplateDeduction.cpp.
References clang::Deduced, FinishTemplateArgumentDeduction(), clang::Decl::getLocation(), clang::TemplateParameterList::getParam(), clang::Sema::getTrivialTemplateArgumentLoc(), clang::PartialOrdering, and clang::Template.
◆ FinishTemplateArgumentDeduction() [3/4]
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Complete template argument deduction.
Definition at line 3314 of file SemaTemplateDeduction.cpp.
References clang::MultiLevelTemplateArgumentList::addOuterRetainedLevels(), clang::Sema::CheckTemplateArgumentInfo::CanonicalConverted, CheckDeducedArgumentConstraints(), CheckDeducedTemplateArgumentList(), clang::Sema::Context, ConvertDeducedTemplateArguments(), clang::TemplateArgumentList::CreateCopy(), clang::Deduced, getAsDeclContextOrEnclosing(), clang::PartialOrdering, clang::sema::TemplateDeductionInfo::reset(), clang::Success, clang::Sema::CheckTemplateArgumentInfo::SugaredConverted, and clang::Template.
Referenced by FinishTemplateArgumentDeduction().
◆ FinishTemplateArgumentDeduction() [4/4]
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Complete template argument deduction for DeduceTemplateArgumentsFromType.
FIXME: this is mostly duplicated with the above two versions. Deduplicate the three implementations.
Definition at line 3379 of file SemaTemplateDeduction.cpp.
References clang::Sema::CheckTemplateArgumentInfo::CanonicalConverted, ConvertDeducedTemplateArguments(), clang::Deduced, getAsDeclContextOrEnclosing(), clang::TemplateDecl::getTemplateParameters(), clang::Success, and clang::Sema::CheckTemplateArgumentInfo::SugaredConverted.
◆ getAsDeclContextOrEnclosing()
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Definition at line 3162 of file SemaTemplateDeduction.cpp.
References clang::Decl::getDeclContext().
Referenced by FinishTemplateArgumentDeduction(), FinishTemplateArgumentDeduction(), and FinishTemplateArgumentDeduction().
◆ getDeducedNTTParameterFromExpr() [1/2]
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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 241 of file SemaTemplateDeduction.cpp.
References unwrapExpressionForDeduction().
Referenced by DeduceFromInitializerList(), DeduceTemplateArguments(), DeduceTemplateArgumentsByTypeMatch(), getDeducedNTTParameterFromExpr(), and MarkUsedTemplateParameters().
◆ getDeducedNTTParameterFromExpr() [2/2]
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Definition at line 258 of file SemaTemplateDeduction.cpp.
References clang::sema::TemplateDeductionInfo::getDeducedDepth(), and getDeducedNTTParameterFromExpr().
◆ getFirstInnerIndex()
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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 1419 of file SemaTemplateDeduction.cpp.
References clang::FunctionTemplateDecl::getTemplatedDecl().
Referenced by clang::Sema::DeduceTemplateArguments(), and clang::Sema::DeduceTemplateArguments().
◆ GetImplicitObjectParameterType()
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Definition at line 5717 of file SemaTemplateDeduction.cpp.
References clang::RQ_None, and clang::RQ_RValue.
Referenced by clang::Sema::getMoreSpecializedTemplate().
◆ getLastTemplateSpecType()
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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 670 of file SemaTemplateDeduction.cpp.
References clang::QualType::getTypePtr(), and clang::T.
Referenced by DeduceTemplateSpecArguments().
◆ getMoreSpecialized()
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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 6525 of file SemaTemplateDeduction.cpp.
References clang::cast(), clang::Sema::Context, Equal, clang::Sema::getASTContext(), clang::ASTContext::getLangOpts(), getMoreSpecializedTrailingPackTieBreaker(), clang::Sema::IsAtLeastAsConstrained(), isAtLeastAsSpecializedAs(), Less, More, clang::TemplateParameterList::size(), clang::Sema::TemplateParameterListsAreEqual(), and clang::Sema::TPL_TemplateParamsEquivalent.
Referenced by clang::Sema::getMoreSpecializedPartialSpecialization(), clang::Sema::getMoreSpecializedPartialSpecialization(), clang::Sema::isMoreSpecializedThanPrimary(), and clang::Sema::isMoreSpecializedThanPrimary().
◆ getMoreSpecializedTrailingPackTieBreaker()
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Definition at line 6016 of file SemaTemplateDeduction.cpp.
References Equal, clang::TemplateArgument::getKind(), Less, More, clang::TemplateArgument::Pack, clang::TemplateArgument::pack_elements(), and clang::TemplateArgument::pack_size().
Referenced by getMoreSpecialized(), and clang::Sema::getMoreSpecializedTemplate().
◆ getPackIndexForParam()
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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 3861 of file SemaTemplateDeduction.cpp.
References clang::FunctionTemplate, and clang::Sema::getNumArgumentsInExpansion().
Referenced by CheckDeductionConsistency(), and clang::Sema::FinishTemplateArgumentDeduction().
◆ GetTypeOfFunction()
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Gets the type of a function for template-argument-deducton purposes when it's considered as part of an overload set.
Definition at line 4266 of file SemaTemplateDeduction.cpp.
References clang::Sema::Context, clang::Sema::DeduceReturnType(), clang::Sema::getLangOpts(), clang::ASTContext::getMemberPointerType(), and clang::ASTContext::getPointerType().
Referenced by ResolveOverloadForDeduction().
◆ hasDeducibleTemplateParameters()
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Definition at line 7379 of file SemaTemplateDeduction.cpp.
References clang::Sema::Context, clang::Deduced, clang::FunctionTemplate, clang::TemplateParameterList::getDepth(), MarkUsedTemplateParameters(), clang::TemplateParameterList::size(), and clang::T.
Referenced by clang::Sema::DeduceTemplateArguments().
◆ hasInconsistentOrSupersetQualifiersOf()
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 1372 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().
Referenced by DeduceTemplateArgumentsByTypeMatch().
◆ hasPackExpansionBeforeEnd()
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Determine whether the given set of template arguments has a pack expansion that is not the last template argument.
Definition at line 2717 of file SemaTemplateDeduction.cpp.
References hasPackExpansionBeforeEnd(), and clang::TemplateArgument::Pack.
Referenced by DeduceTemplateArguments(), hasPackExpansionBeforeEnd(), clang::Sema::MarkUsedTemplateParameters(), clang::Sema::MarkUsedTemplateParameters(), and MarkUsedTemplateParameters().
◆ hasTemplateArgumentForDeduction()
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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 2700 of file SemaTemplateDeduction.cpp.
References clang::TemplateArgument::getKind(), clang::TemplateArgument::Pack, and clang::TemplateArgument::pack_elements().
Referenced by DeduceTemplateArguments().
◆ instantiateExplicitSpecifierDeferred()
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Definition at line 3886 of file SemaTemplateDeduction.cpp.
References clang::cast(), clang::Sema::CodeSynthesisContext::DeducedTemplateArgumentSubstitution, clang::FunctionTemplate, clang::ExplicitSpecifier::getExpr(), clang::sema::TemplateDeductionInfo::getLocation(), clang::Sema::SFINAETrap::hasErrorOccurred(), clang::Sema::instantiateExplicitSpecifier(), clang::InstantiationDepth, clang::isa(), clang::ExplicitSpecifier::isInvalid(), clang::Sema::InstantiatingTemplate::isInvalid(), clang::Expr::isValueDependent(), clang::Specialization, clang::SubstitutionFailure, and clang::Success.
Referenced by clang::Sema::FinishTemplateArgumentDeduction().
◆ isAtLeastAsSpecializedAs() [1/2]
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Determine whether one template 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). Template The primary template of P2, in case it is a partial specialization, the same as P2 otherwise.
Definition at line 6378 of file SemaTemplateDeduction.cpp.
References Call, clang::cast(), clang::Deduced, DeduceTemplateArgumentsByTypeMatch(), clang::sema::TemplateDeductionInfo::getLocation(), clang::Sema::SFINAETrap::hasErrorOccurred(), clang::Sema::InstantiatingTemplate::isInvalid(), clang::Sema::runWithSufficientStackSpace(), clang::Success, clang::TDF_None, clang::Template, clang::Sema::Unevaluated, and clang::Unevaluated.
◆ isAtLeastAsSpecializedAs() [2/2]
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Determine whether the function template FT1 is at least as specialized as FT2.
Definition at line 5828 of file SemaTemplateDeduction.cpp.
References Call, clang::Deduced, clang::Sema::CodeSynthesisContext::DeducedTemplateArgumentSubstitution, DeduceTemplateArguments(), DeduceTemplateArgumentsByTypeMatch(), clang::Type::getAs(), clang::sema::TemplateDeductionInfo::getLocation(), clang::FunctionProtoType::getMethodQuals(), clang::FunctionProtoType::getParamTypes(), clang::FunctionProtoType::getRefQualifier(), clang::FunctionType::getReturnType(), clang::FunctionTemplateDecl::getTemplatedDecl(), clang::TemplateDecl::getTemplateParameters(), clang::ValueDecl::getType(), clang::Sema::InstantiatingTemplate::isInvalid(), clang::FunctionProtoType::isVariadic(), clang::Sema::runWithSufficientStackSpace(), clang::TemplateParameterList::size(), clang::Success, clang::TDF_None, clang::TPOC_Call, clang::TPOC_Conversion, clang::TPOC_Other, clang::Sema::Unevaluated, and clang::Unevaluated.
Referenced by getMoreSpecialized(), and clang::Sema::getMoreSpecializedTemplate().
◆ isForwardingReference()
Determine whether a type denotes a forwarding reference.
Definition at line 1427 of file SemaTemplateDeduction.cpp.
Referenced by AdjustFunctionParmAndArgTypesForDeduction(), and DeduceTemplateArgumentsByTypeMatch().
◆ IsPossiblyOpaquelyQualifiedType()
Determines whether the given type is an opaque type that might be more qualified when instantiated.
Definition at line 813 of file SemaTemplateDeduction.cpp.
References IsPossiblyOpaquelyQualifiedTypeInternal(), and clang::T.
Referenced by DeduceTemplateArgumentsByTypeMatch().
◆ IsPossiblyOpaquelyQualifiedTypeInternal()
Definition at line 785 of file SemaTemplateDeduction.cpp.
References clang::cast(), IsPossiblyOpaquelyQualifiedTypeInternal(), and clang::T.
Referenced by IsPossiblyOpaquelyQualifiedType(), and IsPossiblyOpaquelyQualifiedTypeInternal().
◆ isSameDeclaration()
Determine whether two declaration pointers refer to the same declaration.
Definition at line 264 of file SemaTemplateDeduction.cpp.
References clang::Decl::getCanonicalDecl(), and X.
Referenced by checkDeducedTemplateArguments(), DeduceTemplateArguments(), and clang::Sema::FinishTemplateArgumentDeduction().
◆ isSimpleTemplateIdType()
Determine whether the given type T is a simple-template-id type.
Definition at line 3531 of file SemaTemplateDeduction.cpp.
References clang::isa(), and clang::T.
Referenced by AdjustFunctionParmAndArgTypesForDeduction(), and CheckOriginalCallArgDeduction().
◆ makeTemplateParameter()
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Helper function to build a TemplateParameter when we don't know its type statically.
Definition at line 820 of file SemaTemplateDeduction.cpp.
References clang::cast().
Referenced by CheckDeducedTemplateArgumentList(), ConvertDeducedTemplateArguments(), clang::Sema::DeduceTemplateArguments(), and clang::Sema::SubstituteExplicitTemplateArguments().
◆ MarkUsedTemplateParameters() [1/5]
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Mark the template parameters that are used by the given expression.
Definition at line 6894 of file SemaTemplateDeduction.cpp.
References getDeducedNTTParameterFromExpr(), NonTypeOrVarTemplateParmDecl::getDepth(), NonTypeOrVarTemplateParmDecl::getIndex(), clang::ASTContext::getLangOpts(), NonTypeOrVarTemplateParmDecl::getType(), MarkUsedTemplateParameters(), unwrapExpressionForDeduction(), and Used.
◆ MarkUsedTemplateParameters() [2/5]
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Mark the template parameters that are used by this template argument.
Definition at line 7279 of file SemaTemplateDeduction.cpp.
References clang::TemplateArgument::Declaration, clang::TemplateArgument::Expression, clang::TemplateArgument::Integral, MarkUsedTemplateParameters(), clang::TemplateArgument::Null, clang::TemplateArgument::NullPtr, clang::TemplateArgument::Pack, clang::TemplateArgument::StructuralValue, clang::TemplateArgument::Template, clang::TemplateArg, clang::TemplateArgument::TemplateExpansion, clang::TemplateArgument::Type, and Used.
Referenced by clang::Sema::CheckDependentFriend(), hasDeducibleTemplateParameters(), MarkUsedTemplateParameters(), MarkUsedTemplateParameters(), MarkUsedTemplateParameters(), MarkUsedTemplateParameters(), and MarkUsedTemplateParameters().
◆ MarkUsedTemplateParameters() [3/5]
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Mark the template parameters that are used by the given nested name specifier.
Definition at line 6934 of file SemaTemplateDeduction.cpp.
References clang::NestedNameSpecifier::getAsType(), clang::NestedNameSpecifier::getKind(), MarkUsedTemplateParameters(), clang::NestedNameSpecifier::Type, and Used.
◆ MarkUsedTemplateParameters() [4/5]
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Mark the template parameters that are used by the given type.
Definition at line 6971 of file SemaTemplateDeduction.cpp.
References clang::cast(), clang::DependentAddressSpaceType::getAddrSpaceExpr(), clang::Type::getAs(), clang::TemplateName::getAsDependentTemplateName(), clang::NestedNameSpecifier::getAsType(), clang::ASTContext::getCanonicalType(), clang::DependentSizedMatrixType::getColumnExpr(), clang::DependentSizedExtVectorType::getElementType(), clang::MatrixType::getElementType(), clang::FunctionProtoType::getNoexceptExpr(), clang::FunctionProtoType::getNumParams(), clang::FunctionProtoType::getParamType(), clang::DependentAddressSpaceType::getPointeeType(), clang::MemberPointerType::getPointeeType(), getPointeeType(), clang::MemberPointerType::getQualifier(), clang::FunctionType::getReturnType(), clang::DependentSizedMatrixType::getRowExpr(), clang::DependentSizedExtVectorType::getSizeExpr(), hasPackExpansionBeforeEnd(), MarkUsedTemplateParameters(), Next, clang::T, and Used.
◆ MarkUsedTemplateParameters() [5/5]
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Mark the template parameters that are used by the given template name.
Definition at line 6946 of file SemaTemplateDeduction.cpp.
References clang::TemplateName::getAsDependentTemplateName(), clang::TemplateName::getAsQualifiedTemplateName(), clang::TemplateName::getAsTemplateDecl(), clang::TemplateTemplateParmDecl::getDepth(), clang::TemplateTemplateParmDecl::getIndex(), MarkUsedTemplateParameters(), clang::Template, and Used.
◆ ResolveOverloadForDeduction()
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Apply the deduction rules for overload sets.
- Returns
- the null type if this argument should be treated as an undeduced context
Definition at line 4293 of file SemaTemplateDeduction.cpp.
References clang::cast(), clang::Sema::Context, clang::OverloadExpr::copyTemplateArgumentsInto(), clang::OverloadExpr::decls_begin(), clang::OverloadExpr::decls_end(), clang::Deduced, clang::Sema::DeduceTemplateArguments(), DeduceTemplateArgumentsByTypeMatch(), clang::OverloadExpr::find(), clang::OverloadExpr::getNameLoc(), clang::ASTContext::getPointerType(), GetTypeOfFunction(), clang::NamedDecl::getUnderlyingDecl(), clang::OverloadExpr::hasExplicitTemplateArgs(), clang::Type::isFunctionPointerType(), clang::Type::isFunctionType(), clang::Type::isMemberFunctionPointerType(), clang::Type::isPointerType(), clang::Sema::isSameOrCompatibleFunctionType(), clang::Match, None, clang::Sema::resolveAddressOfSingleOverloadCandidate(), clang::Sema::ResolveSingleFunctionTemplateSpecialization(), clang::TemplateParameterList::size(), clang::Specialization, clang::Success, clang::TDF_IgnoreQualifiers, and clang::TDF_ParamWithReferenceType.
Referenced by AdjustFunctionParmAndArgTypesForDeduction().
◆ unwrapExpressionForDeduction()
Definition at line 150 of file SemaTemplateDeduction.cpp.
Referenced by getDeducedNTTParameterFromExpr(), and MarkUsedTemplateParameters().
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