clang 17.0.0git
Classes | Public Member Functions | List of all members
clang::Sema::InstantiatingTemplate Struct Reference

A stack object to be created when performing template instantiation. More...

#include "clang/Sema/Sema.h"

Classes

struct  ConstraintNormalization
 
struct  ConstraintsCheck
 
struct  ConstraintSubstitution
 
struct  ExceptionSpecification
 
struct  ParameterMappingSubstitution
 

Public Member Functions

 InstantiatingTemplate (Sema &SemaRef, SourceLocation PointOfInstantiation, Decl *Entity, SourceRange InstantiationRange=SourceRange())
 Note that we are instantiating a class template, function template, variable template, alias template, or a member thereof.
 
 InstantiatingTemplate (Sema &SemaRef, SourceLocation PointOfInstantiation, FunctionDecl *Entity, ExceptionSpecification, SourceRange InstantiationRange=SourceRange())
 Note that we are instantiating an exception specification of a function template.
 
 InstantiatingTemplate (Sema &SemaRef, SourceLocation PointOfInstantiation, TemplateParameter Param, TemplateDecl *Template, ArrayRef< TemplateArgument > TemplateArgs, SourceRange InstantiationRange=SourceRange())
 Note that we are instantiating a default argument in a template-id.
 
 InstantiatingTemplate (Sema &SemaRef, SourceLocation PointOfInstantiation, FunctionTemplateDecl *FunctionTemplate, ArrayRef< TemplateArgument > TemplateArgs, CodeSynthesisContext::SynthesisKind Kind, sema::TemplateDeductionInfo &DeductionInfo, SourceRange InstantiationRange=SourceRange())
 Note that we are substituting either explicitly-specified or deduced template arguments during function template argument deduction.
 
 InstantiatingTemplate (Sema &SemaRef, SourceLocation PointOfInstantiation, TemplateDecl *Template, ArrayRef< TemplateArgument > TemplateArgs, sema::TemplateDeductionInfo &DeductionInfo, SourceRange InstantiationRange=SourceRange())
 Note that we are instantiating as part of template argument deduction for a class template declaration.
 
 InstantiatingTemplate (Sema &SemaRef, SourceLocation PointOfInstantiation, ClassTemplatePartialSpecializationDecl *PartialSpec, ArrayRef< TemplateArgument > TemplateArgs, sema::TemplateDeductionInfo &DeductionInfo, SourceRange InstantiationRange=SourceRange())
 Note that we are instantiating as part of template argument deduction for a class template partial specialization.
 
 InstantiatingTemplate (Sema &SemaRef, SourceLocation PointOfInstantiation, VarTemplatePartialSpecializationDecl *PartialSpec, ArrayRef< TemplateArgument > TemplateArgs, sema::TemplateDeductionInfo &DeductionInfo, SourceRange InstantiationRange=SourceRange())
 Note that we are instantiating as part of template argument deduction for a variable template partial specialization.
 
 InstantiatingTemplate (Sema &SemaRef, SourceLocation PointOfInstantiation, ParmVarDecl *Param, ArrayRef< TemplateArgument > TemplateArgs, SourceRange InstantiationRange=SourceRange())
 Note that we are instantiating a default argument for a function parameter.
 
 InstantiatingTemplate (Sema &SemaRef, SourceLocation PointOfInstantiation, NamedDecl *Template, NonTypeTemplateParmDecl *Param, ArrayRef< TemplateArgument > TemplateArgs, SourceRange InstantiationRange)
 Note that we are substituting prior template arguments into a non-type parameter.
 
 InstantiatingTemplate (Sema &SemaRef, SourceLocation PointOfInstantiation, NamedDecl *Template, TemplateTemplateParmDecl *Param, ArrayRef< TemplateArgument > TemplateArgs, SourceRange InstantiationRange)
 Note that we are substituting prior template arguments into a template template parameter.
 
 InstantiatingTemplate (Sema &SemaRef, SourceLocation PointOfInstantiation, TemplateDecl *Template, NamedDecl *Param, ArrayRef< TemplateArgument > TemplateArgs, SourceRange InstantiationRange)
 Note that we are checking the default template argument against the template parameter for a given template-id.
 
 InstantiatingTemplate (Sema &SemaRef, SourceLocation PointOfInstantiation, ConstraintsCheck, NamedDecl *Template, ArrayRef< TemplateArgument > TemplateArgs, SourceRange InstantiationRange)
 Note that we are checking the constraints associated with some constrained entity (a concept declaration or a template with associated constraints).
 
 InstantiatingTemplate (Sema &SemaRef, SourceLocation PointOfInstantiation, ConstraintSubstitution, NamedDecl *Template, sema::TemplateDeductionInfo &DeductionInfo, SourceRange InstantiationRange)
 Note that we are checking a constraint expression associated with a template declaration or as part of the satisfaction check of a concept.
 
 InstantiatingTemplate (Sema &SemaRef, SourceLocation PointOfInstantiation, ConstraintNormalization, NamedDecl *Template, SourceRange InstantiationRange)
 Note that we are normalizing a constraint expression.
 
 InstantiatingTemplate (Sema &SemaRef, SourceLocation PointOfInstantiation, ParameterMappingSubstitution, NamedDecl *Template, SourceRange InstantiationRange)
 Note that we are subtituting into the parameter mapping of an atomic constraint during constraint normalization.
 
 InstantiatingTemplate (Sema &SemaRef, SourceLocation PointOfInstantiation, concepts::Requirement *Req, sema::TemplateDeductionInfo &DeductionInfo, SourceRange InstantiationRange=SourceRange())
 Note that we are substituting template arguments into a part of a requirement of a requires expression.
 
 InstantiatingTemplate (Sema &SemaRef, SourceLocation PointOfInstantiation, concepts::NestedRequirement *Req, ConstraintsCheck, SourceRange InstantiationRange=SourceRange())
 Note that we are checking the satisfaction of the constraint expression inside of a nested requirement.
 
 InstantiatingTemplate (Sema &SemaRef, SourceLocation PointOfInstantiation, const RequiresExpr *E, sema::TemplateDeductionInfo &DeductionInfo, SourceRange InstantiationRange)
 Note that we are checking a requires clause.
 
void Clear ()
 Note that we have finished instantiating this template.
 
 ~InstantiatingTemplate ()
 
bool isInvalid () const
 Determines whether we have exceeded the maximum recursive template instantiations.
 
bool isAlreadyInstantiating () const
 Determine whether we are already instantiating this specialization in some surrounding active instantiation.
 

Detailed Description

A stack object to be created when performing template instantiation.

Construction of an object of type InstantiatingTemplate pushes the current instantiation onto the stack of active instantiations. If the size of this stack exceeds the maximum number of recursive template instantiations, construction produces an error and evaluates true.

Destruction of this object will pop the named instantiation off the stack.

Definition at line 9495 of file Sema.h.

Constructor & Destructor Documentation

◆ InstantiatingTemplate() [1/18]

Sema::InstantiatingTemplate::InstantiatingTemplate ( Sema &  SemaRef,
SourceLocation  PointOfInstantiation,
Decl *  Entity,
SourceRange  InstantiationRange = SourceRange() 
)

Note that we are instantiating a class template, function template, variable template, alias template, or a member thereof.

Definition at line 415 of file SemaTemplateInstantiate.cpp.

◆ InstantiatingTemplate() [2/18]

Sema::InstantiatingTemplate::InstantiatingTemplate ( Sema &  SemaRef,
SourceLocation  PointOfInstantiation,
FunctionDecl *  Entity,
ExceptionSpecification  ,
SourceRange  InstantiationRange = SourceRange() 
)

Note that we are instantiating an exception specification of a function template.

Definition at line 422 of file SemaTemplateInstantiate.cpp.

◆ InstantiatingTemplate() [3/18]

Sema::InstantiatingTemplate::InstantiatingTemplate ( Sema &  SemaRef,
SourceLocation  PointOfInstantiation,
TemplateParameter  Param,
TemplateDecl *  Template,
ArrayRef< TemplateArgument >  TemplateArgs,
SourceRange  InstantiationRange = SourceRange() 
)

Note that we are instantiating a default argument in a template-id.

Definition at line 429 of file SemaTemplateInstantiate.cpp.

◆ InstantiatingTemplate() [4/18]

Sema::InstantiatingTemplate::InstantiatingTemplate ( Sema &  SemaRef,
SourceLocation  PointOfInstantiation,
FunctionTemplateDecl *  FunctionTemplate,
ArrayRef< TemplateArgument >  TemplateArgs,
CodeSynthesisContext::SynthesisKind  Kind,
sema::TemplateDeductionInfo &  DeductionInfo,
SourceRange  InstantiationRange = SourceRange() 
)

Note that we are substituting either explicitly-specified or deduced template arguments during function template argument deduction.

Definition at line 439 of file SemaTemplateInstantiate.cpp.

References clang::Sema::CodeSynthesisContext::DeducedTemplateArgumentSubstitution, and clang::Sema::CodeSynthesisContext::ExplicitTemplateArgumentSubstitution.

◆ InstantiatingTemplate() [5/18]

Sema::InstantiatingTemplate::InstantiatingTemplate ( Sema &  SemaRef,
SourceLocation  PointOfInstantiation,
TemplateDecl *  Template,
ArrayRef< TemplateArgument >  TemplateArgs,
sema::TemplateDeductionInfo &  DeductionInfo,
SourceRange  InstantiationRange = SourceRange() 
)

Note that we are instantiating as part of template argument deduction for a class template declaration.

Definition at line 453 of file SemaTemplateInstantiate.cpp.

◆ InstantiatingTemplate() [6/18]

Sema::InstantiatingTemplate::InstantiatingTemplate ( Sema &  SemaRef,
SourceLocation  PointOfInstantiation,
ClassTemplatePartialSpecializationDecl *  PartialSpec,
ArrayRef< TemplateArgument >  TemplateArgs,
sema::TemplateDeductionInfo &  DeductionInfo,
SourceRange  InstantiationRange = SourceRange() 
)

Note that we are instantiating as part of template argument deduction for a class template partial specialization.

Definition at line 464 of file SemaTemplateInstantiate.cpp.

◆ InstantiatingTemplate() [7/18]

Sema::InstantiatingTemplate::InstantiatingTemplate ( Sema &  SemaRef,
SourceLocation  PointOfInstantiation,
VarTemplatePartialSpecializationDecl *  PartialSpec,
ArrayRef< TemplateArgument >  TemplateArgs,
sema::TemplateDeductionInfo &  DeductionInfo,
SourceRange  InstantiationRange = SourceRange() 
)

Note that we are instantiating as part of template argument deduction for a variable template partial specialization.

Definition at line 475 of file SemaTemplateInstantiate.cpp.

◆ InstantiatingTemplate() [8/18]

Sema::InstantiatingTemplate::InstantiatingTemplate ( Sema &  SemaRef,
SourceLocation  PointOfInstantiation,
ParmVarDecl *  Param,
ArrayRef< TemplateArgument >  TemplateArgs,
SourceRange  InstantiationRange = SourceRange() 
)

Note that we are instantiating a default argument for a function parameter.

Definition at line 486 of file SemaTemplateInstantiate.cpp.

◆ InstantiatingTemplate() [9/18]

Sema::InstantiatingTemplate::InstantiatingTemplate ( Sema &  SemaRef,
SourceLocation  PointOfInstantiation,
NamedDecl *  Template,
NonTypeTemplateParmDecl *  Param,
ArrayRef< TemplateArgument >  TemplateArgs,
SourceRange  InstantiationRange 
)

Note that we are substituting prior template arguments into a non-type parameter.

Definition at line 495 of file SemaTemplateInstantiate.cpp.

◆ InstantiatingTemplate() [10/18]

Sema::InstantiatingTemplate::InstantiatingTemplate ( Sema &  SemaRef,
SourceLocation  PointOfInstantiation,
NamedDecl *  Template,
TemplateTemplateParmDecl *  Param,
ArrayRef< TemplateArgument >  TemplateArgs,
SourceRange  InstantiationRange 
)

Note that we are substituting prior template arguments into a template template parameter.

Definition at line 505 of file SemaTemplateInstantiate.cpp.

◆ InstantiatingTemplate() [11/18]

Sema::InstantiatingTemplate::InstantiatingTemplate ( Sema &  SemaRef,
SourceLocation  PointOfInstantiation,
TemplateDecl *  Template,
NamedDecl *  Param,
ArrayRef< TemplateArgument >  TemplateArgs,
SourceRange  InstantiationRange 
)

Note that we are checking the default template argument against the template parameter for a given template-id.

Definition at line 515 of file SemaTemplateInstantiate.cpp.

◆ InstantiatingTemplate() [12/18]

Sema::InstantiatingTemplate::InstantiatingTemplate ( Sema &  SemaRef,
SourceLocation  PointOfInstantiation,
ConstraintsCheck  ,
NamedDecl *  Template,
ArrayRef< TemplateArgument >  TemplateArgs,
SourceRange  InstantiationRange 
)

Note that we are checking the constraints associated with some constrained entity (a concept declaration or a template with associated constraints).

Definition at line 552 of file SemaTemplateInstantiate.cpp.

◆ InstantiatingTemplate() [13/18]

Sema::InstantiatingTemplate::InstantiatingTemplate ( Sema &  SemaRef,
SourceLocation  PointOfInstantiation,
ConstraintSubstitution  ,
NamedDecl *  Template,
sema::TemplateDeductionInfo &  DeductionInfo,
SourceRange  InstantiationRange 
)

Note that we are checking a constraint expression associated with a template declaration or as part of the satisfaction check of a concept.

Definition at line 561 of file SemaTemplateInstantiate.cpp.

◆ InstantiatingTemplate() [14/18]

Sema::InstantiatingTemplate::InstantiatingTemplate ( Sema &  SemaRef,
SourceLocation  PointOfInstantiation,
ConstraintNormalization  ,
NamedDecl *  Template,
SourceRange  InstantiationRange 
)

Note that we are normalizing a constraint expression.

Definition at line 570 of file SemaTemplateInstantiate.cpp.

◆ InstantiatingTemplate() [15/18]

Sema::InstantiatingTemplate::InstantiatingTemplate ( Sema &  SemaRef,
SourceLocation  PointOfInstantiation,
ParameterMappingSubstitution  ,
NamedDecl *  Template,
SourceRange  InstantiationRange 
)

Note that we are subtituting into the parameter mapping of an atomic constraint during constraint normalization.

Definition at line 578 of file SemaTemplateInstantiate.cpp.

◆ InstantiatingTemplate() [16/18]

Sema::InstantiatingTemplate::InstantiatingTemplate ( Sema &  SemaRef,
SourceLocation  PointOfInstantiation,
concepts::Requirement *  Req,
sema::TemplateDeductionInfo &  DeductionInfo,
SourceRange  InstantiationRange = SourceRange() 
)

Note that we are substituting template arguments into a part of a requirement of a requires expression.

Definition at line 524 of file SemaTemplateInstantiate.cpp.

◆ InstantiatingTemplate() [17/18]

Sema::InstantiatingTemplate::InstantiatingTemplate ( Sema &  SemaRef,
SourceLocation  PointOfInstantiation,
concepts::NestedRequirement *  Req,
ConstraintsCheck  ,
SourceRange  InstantiationRange = SourceRange() 
)

Note that we are checking the satisfaction of the constraint expression inside of a nested requirement.

Definition at line 534 of file SemaTemplateInstantiate.cpp.

◆ InstantiatingTemplate() [18/18]

Sema::InstantiatingTemplate::InstantiatingTemplate ( Sema &  SemaRef,
SourceLocation  PointOfInstantiation,
const RequiresExpr *  E,
sema::TemplateDeductionInfo &  DeductionInfo,
SourceRange  InstantiationRange 
)

Note that we are checking a requires clause.

Definition at line 543 of file SemaTemplateInstantiate.cpp.

◆ ~InstantiatingTemplate()

clang::Sema::InstantiatingTemplate::~InstantiatingTemplate ( )
inline

Definition at line 9635 of file Sema.h.

References Clear().

Member Function Documentation

◆ Clear()

void Sema::InstantiatingTemplate::Clear ( )

Note that we have finished instantiating this template.

Definition at line 631 of file SemaTemplateInstantiate.cpp.

References clang::atTemplateEnd(), clang::Sema::CodeSynthesisContexts, clang::Sema::InstantiatingSpecializations, clang::Invalid, clang::Sema::popCodeSynthesisContext(), and clang::Sema::TemplateInstCallbacks.

Referenced by getPatternForClassTemplateSpecialization(), and ~InstantiatingTemplate().

◆ isAlreadyInstantiating()

bool clang::Sema::InstantiatingTemplate::isAlreadyInstantiating ( ) const
inline

Determine whether we are already instantiating this specialization in some surrounding active instantiation.

Definition at line 9643 of file Sema.h.

Referenced by getPatternForClassTemplateSpecialization(), clang::Sema::InstantiateClass(), clang::Sema::InstantiateEnum(), clang::Sema::InstantiateExceptionSpec(), clang::Sema::InstantiateFunctionDefinition(), clang::Sema::InstantiateInClassInitializer(), clang::Sema::InstantiateVariableDefinition(), and clang::Sema::SubstDefaultArgument().

◆ isInvalid()

bool clang::Sema::InstantiatingTemplate::isInvalid ( ) const
inline

Determines whether we have exceeded the maximum recursive template instantiations.

Definition at line 9639 of file Sema.h.

Referenced by clang::Sema::BuildVarTemplateInstantiation(), calculateConstraintSatisfaction(), CheckConstraintSatisfaction(), clang::Sema::CheckTemplateArgument(), clang::Sema::CheckTemplateArgumentList(), clang::Sema::CheckTemplateIdType(), ConvertDeducedTemplateArgument(), clang::Sema::DeclareImplicitDeductionGuides(), clang::Sema::DeduceTemplateArguments(), clang::Sema::FinishTemplateArgumentDeduction(), getPatternForClassTemplateSpecialization(), clang::Sema::InstantiateClass(), clang::Sema::InstantiateEnum(), clang::Sema::InstantiateExceptionSpec(), clang::Sema::InstantiateFunctionDeclaration(), clang::Sema::InstantiateFunctionDefinition(), clang::Sema::InstantiateInClassInitializer(), clang::Sema::InstantiateVariableDefinition(), isAtLeastAsSpecializedAs(), clang::Sema::SubstDefaultArgument(), SubstDefaultTemplateArgument(), and clang::Sema::SubstituteExplicitTemplateArguments().

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