/usr/include/clang/AST/DeclTemplate.h is in libclang-dev 3.0-6ubuntu3.
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2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 | //===-- DeclTemplate.h - Classes for representing C++ templates -*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines the C++ template declaration subclasses.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_AST_DECLTEMPLATE_H
#define LLVM_CLANG_AST_DECLTEMPLATE_H
#include "clang/AST/DeclCXX.h"
#include "clang/AST/TemplateBase.h"
#include "llvm/ADT/PointerUnion.h"
#include <limits>
namespace clang {
class TemplateParameterList;
class TemplateDecl;
class RedeclarableTemplateDecl;
class FunctionTemplateDecl;
class ClassTemplateDecl;
class ClassTemplatePartialSpecializationDecl;
class TemplateTypeParmDecl;
class NonTypeTemplateParmDecl;
class TemplateTemplateParmDecl;
class TypeAliasTemplateDecl;
/// \brief Stores a template parameter of any kind.
typedef llvm::PointerUnion3<TemplateTypeParmDecl*, NonTypeTemplateParmDecl*,
TemplateTemplateParmDecl*> TemplateParameter;
/// TemplateParameterList - Stores a list of template parameters for a
/// TemplateDecl and its derived classes.
class TemplateParameterList {
/// The location of the 'template' keyword.
SourceLocation TemplateLoc;
/// The locations of the '<' and '>' angle brackets.
SourceLocation LAngleLoc, RAngleLoc;
/// The number of template parameters in this template
/// parameter list.
unsigned NumParams;
protected:
TemplateParameterList(SourceLocation TemplateLoc, SourceLocation LAngleLoc,
NamedDecl **Params, unsigned NumParams,
SourceLocation RAngleLoc);
public:
static TemplateParameterList *Create(const ASTContext &C,
SourceLocation TemplateLoc,
SourceLocation LAngleLoc,
NamedDecl **Params,
unsigned NumParams,
SourceLocation RAngleLoc);
/// iterator - Iterates through the template parameters in this list.
typedef NamedDecl** iterator;
/// const_iterator - Iterates through the template parameters in this list.
typedef NamedDecl* const* const_iterator;
iterator begin() { return reinterpret_cast<NamedDecl **>(this + 1); }
const_iterator begin() const {
return reinterpret_cast<NamedDecl * const *>(this + 1);
}
iterator end() { return begin() + NumParams; }
const_iterator end() const { return begin() + NumParams; }
unsigned size() const { return NumParams; }
NamedDecl* getParam(unsigned Idx) {
assert(Idx < size() && "Template parameter index out-of-range");
return begin()[Idx];
}
const NamedDecl* getParam(unsigned Idx) const {
assert(Idx < size() && "Template parameter index out-of-range");
return begin()[Idx];
}
/// \brief Returns the minimum number of arguments needed to form a
/// template specialization. This may be fewer than the number of
/// template parameters, if some of the parameters have default
/// arguments or if there is a parameter pack.
unsigned getMinRequiredArguments() const;
/// \brief Get the depth of this template parameter list in the set of
/// template parameter lists.
///
/// The first template parameter list in a declaration will have depth 0,
/// the second template parameter list will have depth 1, etc.
unsigned getDepth() const;
SourceLocation getTemplateLoc() const { return TemplateLoc; }
SourceLocation getLAngleLoc() const { return LAngleLoc; }
SourceLocation getRAngleLoc() const { return RAngleLoc; }
SourceRange getSourceRange() const {
return SourceRange(TemplateLoc, RAngleLoc);
}
};
/// FixedSizeTemplateParameterList - Stores a list of template parameters for a
/// TemplateDecl and its derived classes. Suitable for creating on the stack.
template<size_t N>
class FixedSizeTemplateParameterList : public TemplateParameterList {
NamedDecl *Params[N];
public:
FixedSizeTemplateParameterList(SourceLocation TemplateLoc, SourceLocation LAngleLoc,
NamedDecl **Params, SourceLocation RAngleLoc) :
TemplateParameterList(TemplateLoc, LAngleLoc, Params, N, RAngleLoc) {
}
};
/// \brief A template argument list.
class TemplateArgumentList {
/// \brief The template argument list.
///
/// The integer value will be non-zero to indicate that this
/// template argument list does own the pointer.
llvm::PointerIntPair<const TemplateArgument *, 1> Arguments;
/// \brief The number of template arguments in this template
/// argument list.
unsigned NumArguments;
TemplateArgumentList(const TemplateArgumentList &Other); // DO NOT IMPL
void operator=(const TemplateArgumentList &Other); // DO NOT IMPL
TemplateArgumentList(const TemplateArgument *Args, unsigned NumArgs,
bool Owned)
: Arguments(Args, Owned), NumArguments(NumArgs) { }
public:
/// \brief Type used to indicate that the template argument list itself is a
/// stack object. It does not own its template arguments.
enum OnStackType { OnStack };
/// \brief Create a new template argument list that copies the given set of
/// template arguments.
static TemplateArgumentList *CreateCopy(ASTContext &Context,
const TemplateArgument *Args,
unsigned NumArgs);
/// \brief Construct a new, temporary template argument list on the stack.
///
/// The template argument list does not own the template arguments
/// provided.
explicit TemplateArgumentList(OnStackType,
const TemplateArgument *Args, unsigned NumArgs)
: Arguments(Args, false), NumArguments(NumArgs) { }
/// \brief Produces a shallow copy of the given template argument list.
///
/// This operation assumes that the input argument list outlives it.
/// This takes the list as a pointer to avoid looking like a copy
/// constructor, since this really really isn't safe to use that
/// way.
explicit TemplateArgumentList(const TemplateArgumentList *Other)
: Arguments(Other->data(), false), NumArguments(Other->size()) { }
/// \brief Retrieve the template argument at a given index.
const TemplateArgument &get(unsigned Idx) const {
assert(Idx < NumArguments && "Invalid template argument index");
return data()[Idx];
}
/// \brief Retrieve the template argument at a given index.
const TemplateArgument &operator[](unsigned Idx) const { return get(Idx); }
/// \brief Retrieve the number of template arguments in this
/// template argument list.
unsigned size() const { return NumArguments; }
/// \brief Retrieve a pointer to the template argument list.
const TemplateArgument *data() const {
return Arguments.getPointer();
}
};
//===----------------------------------------------------------------------===//
// Kinds of Templates
//===----------------------------------------------------------------------===//
/// TemplateDecl - The base class of all kinds of template declarations (e.g.,
/// class, function, etc.). The TemplateDecl class stores the list of template
/// parameters and a reference to the templated scoped declaration: the
/// underlying AST node.
class TemplateDecl : public NamedDecl {
protected:
// This is probably never used.
TemplateDecl(Kind DK, DeclContext *DC, SourceLocation L,
DeclarationName Name)
: NamedDecl(DK, DC, L, Name), TemplatedDecl(0), TemplateParams(0) { }
// Construct a template decl with the given name and parameters.
// Used when there is not templated element (tt-params, alias?).
TemplateDecl(Kind DK, DeclContext *DC, SourceLocation L,
DeclarationName Name, TemplateParameterList *Params)
: NamedDecl(DK, DC, L, Name), TemplatedDecl(0), TemplateParams(Params) { }
// Construct a template decl with name, parameters, and templated element.
TemplateDecl(Kind DK, DeclContext *DC, SourceLocation L,
DeclarationName Name, TemplateParameterList *Params,
NamedDecl *Decl)
: NamedDecl(DK, DC, L, Name), TemplatedDecl(Decl),
TemplateParams(Params) { }
public:
/// Get the list of template parameters
TemplateParameterList *getTemplateParameters() const {
return TemplateParams;
}
/// Get the underlying, templated declaration.
NamedDecl *getTemplatedDecl() const { return TemplatedDecl; }
// Implement isa/cast/dyncast/etc.
static bool classof(const Decl *D) { return classofKind(D->getKind()); }
static bool classof(const TemplateDecl *D) { return true; }
static bool classof(const RedeclarableTemplateDecl *D) { return true; }
static bool classof(const FunctionTemplateDecl *D) { return true; }
static bool classof(const ClassTemplateDecl *D) { return true; }
static bool classof(const TemplateTemplateParmDecl *D) { return true; }
static bool classof(const TypeAliasTemplateDecl *D) { return true; }
static bool classofKind(Kind K) {
return K >= firstTemplate && K <= lastTemplate;
}
SourceRange getSourceRange() const {
return SourceRange(TemplateParams->getTemplateLoc(),
TemplatedDecl->getSourceRange().getEnd());
}
protected:
NamedDecl *TemplatedDecl;
TemplateParameterList* TemplateParams;
public:
/// \brief Initialize the underlying templated declaration and
/// template parameters.
void init(NamedDecl *templatedDecl, TemplateParameterList* templateParams) {
assert(TemplatedDecl == 0 && "TemplatedDecl already set!");
assert(TemplateParams == 0 && "TemplateParams already set!");
TemplatedDecl = templatedDecl;
TemplateParams = templateParams;
}
};
/// \brief Provides information about a function template specialization,
/// which is a FunctionDecl that has been explicitly specialization or
/// instantiated from a function template.
class FunctionTemplateSpecializationInfo : public llvm::FoldingSetNode {
FunctionTemplateSpecializationInfo(FunctionDecl *FD,
FunctionTemplateDecl *Template,
TemplateSpecializationKind TSK,
const TemplateArgumentList *TemplateArgs,
const ASTTemplateArgumentListInfo *TemplateArgsAsWritten,
SourceLocation POI)
: Function(FD),
Template(Template, TSK - 1),
TemplateArguments(TemplateArgs),
TemplateArgumentsAsWritten(TemplateArgsAsWritten),
PointOfInstantiation(POI) { }
public:
static FunctionTemplateSpecializationInfo *
Create(ASTContext &C, FunctionDecl *FD, FunctionTemplateDecl *Template,
TemplateSpecializationKind TSK,
const TemplateArgumentList *TemplateArgs,
const TemplateArgumentListInfo *TemplateArgsAsWritten,
SourceLocation POI);
/// \brief The function template specialization that this structure
/// describes.
FunctionDecl *Function;
/// \brief The function template from which this function template
/// specialization was generated.
///
/// The two bits are contain the top 4 values of TemplateSpecializationKind.
llvm::PointerIntPair<FunctionTemplateDecl *, 2> Template;
/// \brief The template arguments used to produce the function template
/// specialization from the function template.
const TemplateArgumentList *TemplateArguments;
/// \brief The template arguments as written in the sources, if provided.
const ASTTemplateArgumentListInfo *TemplateArgumentsAsWritten;
/// \brief The point at which this function template specialization was
/// first instantiated.
SourceLocation PointOfInstantiation;
/// \brief Retrieve the template from which this function was specialized.
FunctionTemplateDecl *getTemplate() const { return Template.getPointer(); }
/// \brief Determine what kind of template specialization this is.
TemplateSpecializationKind getTemplateSpecializationKind() const {
return (TemplateSpecializationKind)(Template.getInt() + 1);
}
bool isExplicitSpecialization() const {
return getTemplateSpecializationKind() == TSK_ExplicitSpecialization;
}
/// \brief Set the template specialization kind.
void setTemplateSpecializationKind(TemplateSpecializationKind TSK) {
assert(TSK != TSK_Undeclared &&
"Cannot encode TSK_Undeclared for a function template specialization");
Template.setInt(TSK - 1);
}
/// \brief Retrieve the first point of instantiation of this function
/// template specialization.
///
/// The point of instantiation may be an invalid source location if this
/// function has yet to be instantiated.
SourceLocation getPointOfInstantiation() const {
return PointOfInstantiation;
}
/// \brief Set the (first) point of instantiation of this function template
/// specialization.
void setPointOfInstantiation(SourceLocation POI) {
PointOfInstantiation = POI;
}
void Profile(llvm::FoldingSetNodeID &ID) {
Profile(ID, TemplateArguments->data(),
TemplateArguments->size(),
Function->getASTContext());
}
static void
Profile(llvm::FoldingSetNodeID &ID, const TemplateArgument *TemplateArgs,
unsigned NumTemplateArgs, ASTContext &Context) {
ID.AddInteger(NumTemplateArgs);
for (unsigned Arg = 0; Arg != NumTemplateArgs; ++Arg)
TemplateArgs[Arg].Profile(ID, Context);
}
};
/// \brief Provides information a specialization of a member of a class
/// template, which may be a member function, static data member, or
/// member class.
class MemberSpecializationInfo {
// The member declaration from which this member was instantiated, and the
// manner in which the instantiation occurred (in the lower two bits).
llvm::PointerIntPair<NamedDecl *, 2> MemberAndTSK;
// The point at which this member was first instantiated.
SourceLocation PointOfInstantiation;
public:
explicit
MemberSpecializationInfo(NamedDecl *IF, TemplateSpecializationKind TSK,
SourceLocation POI = SourceLocation())
: MemberAndTSK(IF, TSK - 1), PointOfInstantiation(POI) {
assert(TSK != TSK_Undeclared &&
"Cannot encode undeclared template specializations for members");
}
/// \brief Retrieve the member declaration from which this member was
/// instantiated.
NamedDecl *getInstantiatedFrom() const { return MemberAndTSK.getPointer(); }
/// \brief Determine what kind of template specialization this is.
TemplateSpecializationKind getTemplateSpecializationKind() const {
return (TemplateSpecializationKind)(MemberAndTSK.getInt() + 1);
}
/// \brief Set the template specialization kind.
void setTemplateSpecializationKind(TemplateSpecializationKind TSK) {
assert(TSK != TSK_Undeclared &&
"Cannot encode undeclared template specializations for members");
MemberAndTSK.setInt(TSK - 1);
}
/// \brief Retrieve the first point of instantiation of this member.
/// If the point of instantiation is an invalid location, then this member
/// has not yet been instantiated.
SourceLocation getPointOfInstantiation() const {
return PointOfInstantiation;
}
/// \brief Set the first point of instantiation.
void setPointOfInstantiation(SourceLocation POI) {
PointOfInstantiation = POI;
}
};
/// \brief Provides information about a dependent function-template
/// specialization declaration. Since explicit function template
/// specialization and instantiation declarations can only appear in
/// namespace scope, and you can only specialize a member of a
/// fully-specialized class, the only way to get one of these is in
/// a friend declaration like the following:
///
/// template <class T> void foo(T);
/// template <class T> class A {
/// friend void foo<>(T);
/// };
class DependentFunctionTemplateSpecializationInfo {
union {
// Force sizeof to be a multiple of sizeof(void*) so that the
// trailing data is aligned.
void *Aligner;
struct {
/// The number of potential template candidates.
unsigned NumTemplates;
/// The number of template arguments.
unsigned NumArgs;
} d;
};
/// The locations of the left and right angle brackets.
SourceRange AngleLocs;
FunctionTemplateDecl * const *getTemplates() const {
return reinterpret_cast<FunctionTemplateDecl*const*>(this+1);
}
public:
DependentFunctionTemplateSpecializationInfo(
const UnresolvedSetImpl &Templates,
const TemplateArgumentListInfo &TemplateArgs);
/// \brief Returns the number of function templates that this might
/// be a specialization of.
unsigned getNumTemplates() const {
return d.NumTemplates;
}
/// \brief Returns the i'th template candidate.
FunctionTemplateDecl *getTemplate(unsigned I) const {
assert(I < getNumTemplates() && "template index out of range");
return getTemplates()[I];
}
/// \brief Returns the explicit template arguments that were given.
const TemplateArgumentLoc *getTemplateArgs() const {
return reinterpret_cast<const TemplateArgumentLoc*>(
&getTemplates()[getNumTemplates()]);
}
/// \brief Returns the number of explicit template arguments that were given.
unsigned getNumTemplateArgs() const {
return d.NumArgs;
}
/// \brief Returns the nth template argument.
const TemplateArgumentLoc &getTemplateArg(unsigned I) const {
assert(I < getNumTemplateArgs() && "template arg index out of range");
return getTemplateArgs()[I];
}
SourceLocation getLAngleLoc() const {
return AngleLocs.getBegin();
}
SourceLocation getRAngleLoc() const {
return AngleLocs.getEnd();
}
};
/// Declaration of a redeclarable template.
class RedeclarableTemplateDecl : public TemplateDecl {
RedeclarableTemplateDecl *getPreviousDeclarationImpl() {
return CommonOrPrev.dyn_cast<RedeclarableTemplateDecl*>();
}
RedeclarableTemplateDecl *getCanonicalDeclImpl();
void setPreviousDeclarationImpl(RedeclarableTemplateDecl *Prev);
RedeclarableTemplateDecl *getInstantiatedFromMemberTemplateImpl() {
return getCommonPtr()->InstantiatedFromMember.getPointer();
}
void setInstantiatedFromMemberTemplateImpl(RedeclarableTemplateDecl *TD) {
assert(!getCommonPtr()->InstantiatedFromMember.getPointer());
getCommonPtr()->InstantiatedFromMember.setPointer(TD);
}
protected:
template <typename EntryType> struct SpecEntryTraits {
typedef EntryType DeclType;
static DeclType *getMostRecentDeclaration(EntryType *D) {
return D->getMostRecentDeclaration();
}
};
template <typename EntryType,
typename _SETraits = SpecEntryTraits<EntryType>,
typename _DeclType = typename _SETraits::DeclType>
class SpecIterator : public std::iterator<std::forward_iterator_tag,
_DeclType*, ptrdiff_t,
_DeclType*, _DeclType*> {
typedef _SETraits SETraits;
typedef _DeclType DeclType;
typedef typename llvm::FoldingSet<EntryType>::iterator SetIteratorType;
SetIteratorType SetIter;
public:
SpecIterator() : SetIter() {}
SpecIterator(SetIteratorType SetIter) : SetIter(SetIter) {}
DeclType *operator*() const {
return SETraits::getMostRecentDeclaration(&*SetIter);
}
DeclType *operator->() const { return **this; }
SpecIterator &operator++() { ++SetIter; return *this; }
SpecIterator operator++(int) {
SpecIterator tmp(*this);
++(*this);
return tmp;
}
bool operator==(SpecIterator Other) const {
return SetIter == Other.SetIter;
}
bool operator!=(SpecIterator Other) const {
return SetIter != Other.SetIter;
}
};
template <typename EntryType>
SpecIterator<EntryType> makeSpecIterator(llvm::FoldingSet<EntryType> &Specs,
bool isEnd) {
return SpecIterator<EntryType>(isEnd ? Specs.end() : Specs.begin());
}
template <class EntryType> typename SpecEntryTraits<EntryType>::DeclType*
findSpecializationImpl(llvm::FoldingSet<EntryType> &Specs,
const TemplateArgument *Args, unsigned NumArgs,
void *&InsertPos);
struct CommonBase {
CommonBase() : InstantiatedFromMember(0, false) { }
/// \brief The template from which this was most
/// directly instantiated (or null).
///
/// The boolean value indicates whether this template
/// was explicitly specialized.
llvm::PointerIntPair<RedeclarableTemplateDecl*, 1, bool>
InstantiatedFromMember;
/// \brief The latest declaration of this template.
RedeclarableTemplateDecl *Latest;
};
/// \brief A pointer to the previous declaration (if this is a redeclaration)
/// or to the data that is common to all declarations of this template.
llvm::PointerUnion<CommonBase*, RedeclarableTemplateDecl*> CommonOrPrev;
/// \brief Retrieves the "common" pointer shared by all (re-)declarations of
/// the same template. Calling this routine may implicitly allocate memory
/// for the common pointer.
CommonBase *getCommonPtr();
virtual CommonBase *newCommon(ASTContext &C) = 0;
// Construct a template decl with name, parameters, and templated element.
RedeclarableTemplateDecl(Kind DK, DeclContext *DC, SourceLocation L,
DeclarationName Name, TemplateParameterList *Params,
NamedDecl *Decl)
: TemplateDecl(DK, DC, L, Name, Params, Decl),
CommonOrPrev((CommonBase*)0) { }
public:
template <class decl_type> friend class RedeclarableTemplate;
RedeclarableTemplateDecl *getCanonicalDecl() {
return getCanonicalDeclImpl();
}
/// \brief Retrieve the previous declaration of this template, or
/// NULL if no such declaration exists.
RedeclarableTemplateDecl *getPreviousDeclaration() {
return getPreviousDeclarationImpl();
}
/// \brief Retrieve the previous declaration of this template, or
/// NULL if no such declaration exists.
const RedeclarableTemplateDecl *getPreviousDeclaration() const {
return
const_cast<RedeclarableTemplateDecl*>(this)->getPreviousDeclaration();
}
/// \brief Retrieve the first declaration of this template, or itself
/// if this the first one.
RedeclarableTemplateDecl *getFirstDeclaration() {
return getCanonicalDecl();
}
/// \brief Retrieve the first declaration of this template, or itself
/// if this the first one.
const RedeclarableTemplateDecl *getFirstDeclaration() const {
return
const_cast<RedeclarableTemplateDecl*>(this)->getFirstDeclaration();
}
/// \brief Retrieve the most recent declaration of this template, or itself
/// if this the most recent one.
RedeclarableTemplateDecl *getMostRecentDeclaration() {
return getCommonPtr()->Latest;
}
/// \brief Retrieve the most recent declaration of this template, or itself
/// if this the most recent one.
const RedeclarableTemplateDecl *getMostRecentDeclaration() const {
return
const_cast<RedeclarableTemplateDecl*>(this)->getMostRecentDeclaration();
}
/// \brief Determines whether this template was a specialization of a
/// member template.
///
/// In the following example, the function template \c X<int>::f and the
/// member template \c X<int>::Inner are member specializations.
///
/// \code
/// template<typename T>
/// struct X {
/// template<typename U> void f(T, U);
/// template<typename U> struct Inner;
/// };
///
/// template<> template<typename T>
/// void X<int>::f(int, T);
/// template<> template<typename T>
/// struct X<int>::Inner { /* ... */ };
/// \endcode
bool isMemberSpecialization() {
return getCommonPtr()->InstantiatedFromMember.getInt();
}
/// \brief Note that this member template is a specialization.
void setMemberSpecialization() {
assert(getCommonPtr()->InstantiatedFromMember.getPointer() &&
"Only member templates can be member template specializations");
getCommonPtr()->InstantiatedFromMember.setInt(true);
}
/// \brief Retrieve the previous declaration of this template, or
/// NULL if no such declaration exists.
RedeclarableTemplateDecl *getInstantiatedFromMemberTemplate() {
return getInstantiatedFromMemberTemplateImpl();
}
virtual RedeclarableTemplateDecl *getNextRedeclaration();
// Implement isa/cast/dyncast/etc.
static bool classof(const Decl *D) { return classofKind(D->getKind()); }
static bool classof(const RedeclarableTemplateDecl *D) { return true; }
static bool classof(const FunctionTemplateDecl *D) { return true; }
static bool classof(const ClassTemplateDecl *D) { return true; }
static bool classof(const TypeAliasTemplateDecl *D) { return true; }
static bool classofKind(Kind K) {
return K >= firstRedeclarableTemplate && K <= lastRedeclarableTemplate;
}
friend class ASTDeclReader;
friend class ASTDeclWriter;
};
template <class decl_type>
class RedeclarableTemplate {
RedeclarableTemplateDecl *thisDecl() {
return static_cast<decl_type*>(this);
}
public:
/// \brief Retrieve the previous declaration of this function template, or
/// NULL if no such declaration exists.
decl_type *getPreviousDeclaration() {
return static_cast<decl_type*>(thisDecl()->getPreviousDeclarationImpl());
}
/// \brief Retrieve the previous declaration of this function template, or
/// NULL if no such declaration exists.
const decl_type *getPreviousDeclaration() const {
return const_cast<RedeclarableTemplate*>(this)->getPreviousDeclaration();
}
/// \brief Set the previous declaration of this function template.
void setPreviousDeclaration(decl_type *Prev) {
thisDecl()->setPreviousDeclarationImpl(Prev);
}
decl_type *getCanonicalDecl() {
return static_cast<decl_type*>(thisDecl()->getCanonicalDeclImpl());
}
const decl_type *getCanonicalDecl() const {
return const_cast<RedeclarableTemplate*>(this)->getCanonicalDecl();
}
/// \brief Retrieve the member template that this template was instantiated
/// from.
///
/// This routine will return non-NULL for member templates of
/// class templates. For example, given:
///
/// \code
/// template <typename T>
/// struct X {
/// template <typename U> void f();
/// template <typename U> struct A {};
/// };
/// \endcode
///
/// X<int>::f<float> is a CXXMethodDecl (whose parent is X<int>, a
/// ClassTemplateSpecializationDecl) for which getPrimaryTemplate() will
/// return X<int>::f, a FunctionTemplateDecl (whose parent is again
/// X<int>) for which getInstantiatedFromMemberTemplate() will return
/// X<T>::f, a FunctionTemplateDecl (whose parent is X<T>, a
/// ClassTemplateDecl).
///
/// X<int>::A<float> is a ClassTemplateSpecializationDecl (whose parent
/// is X<int>, also a CTSD) for which getSpecializedTemplate() will
/// return X<int>::A<U>, a ClassTemplateDecl (whose parent is again
/// X<int>) for which getInstantiatedFromMemberTemplate() will return
/// X<T>::A<U>, a ClassTemplateDecl (whose parent is X<T>, also a CTD).
///
/// \returns NULL if this is not an instantiation of a member template.
decl_type *getInstantiatedFromMemberTemplate() {
return static_cast<decl_type*>(
thisDecl()->getInstantiatedFromMemberTemplateImpl());
}
void setInstantiatedFromMemberTemplate(decl_type *TD) {
thisDecl()->setInstantiatedFromMemberTemplateImpl(TD);
}
};
template <> struct RedeclarableTemplateDecl::
SpecEntryTraits<FunctionTemplateSpecializationInfo> {
typedef FunctionDecl DeclType;
static DeclType *
getMostRecentDeclaration(FunctionTemplateSpecializationInfo *I) {
return I->Function->getMostRecentDeclaration();
}
};
/// Declaration of a template function.
class FunctionTemplateDecl : public RedeclarableTemplateDecl,
public RedeclarableTemplate<FunctionTemplateDecl> {
static void DeallocateCommon(void *Ptr);
protected:
typedef RedeclarableTemplate<FunctionTemplateDecl> redeclarable_base;
/// \brief Data that is common to all of the declarations of a given
/// function template.
struct Common : CommonBase {
Common() : InjectedArgs(0) { }
/// \brief The function template specializations for this function
/// template, including explicit specializations and instantiations.
llvm::FoldingSet<FunctionTemplateSpecializationInfo> Specializations;
/// \brief The set of "injected" template arguments used within this
/// function template.
///
/// This pointer refers to the template arguments (there are as
/// many template arguments as template parameaters) for the function
/// template, and is allocated lazily, since most function templates do not
/// require the use of this information.
TemplateArgument *InjectedArgs;
};
FunctionTemplateDecl(DeclContext *DC, SourceLocation L, DeclarationName Name,
TemplateParameterList *Params, NamedDecl *Decl)
: RedeclarableTemplateDecl(FunctionTemplate, DC, L, Name, Params, Decl) { }
CommonBase *newCommon(ASTContext &C);
Common *getCommonPtr() {
return static_cast<Common *>(RedeclarableTemplateDecl::getCommonPtr());
}
friend class FunctionDecl;
/// \brief Retrieve the set of function template specializations of this
/// function template.
llvm::FoldingSet<FunctionTemplateSpecializationInfo> &getSpecializations() {
return getCommonPtr()->Specializations;
}
/// \brief Add a specialization of this function template.
///
/// \param InsertPos Insert position in the FoldingSet, must have been
/// retrieved by an earlier call to findSpecialization().
void addSpecialization(FunctionTemplateSpecializationInfo* Info,
void *InsertPos);
public:
/// Get the underlying function declaration of the template.
FunctionDecl *getTemplatedDecl() const {
return static_cast<FunctionDecl*>(TemplatedDecl);
}
/// Returns whether this template declaration defines the primary
/// pattern.
bool isThisDeclarationADefinition() const {
return getTemplatedDecl()->isThisDeclarationADefinition();
}
/// \brief Return the specialization with the provided arguments if it exists,
/// otherwise return the insertion point.
FunctionDecl *findSpecialization(const TemplateArgument *Args,
unsigned NumArgs, void *&InsertPos);
FunctionTemplateDecl *getCanonicalDecl() {
return redeclarable_base::getCanonicalDecl();
}
const FunctionTemplateDecl *getCanonicalDecl() const {
return redeclarable_base::getCanonicalDecl();
}
/// \brief Retrieve the previous declaration of this function template, or
/// NULL if no such declaration exists.
FunctionTemplateDecl *getPreviousDeclaration() {
return redeclarable_base::getPreviousDeclaration();
}
/// \brief Retrieve the previous declaration of this function template, or
/// NULL if no such declaration exists.
const FunctionTemplateDecl *getPreviousDeclaration() const {
return redeclarable_base::getPreviousDeclaration();
}
FunctionTemplateDecl *getInstantiatedFromMemberTemplate() {
return redeclarable_base::getInstantiatedFromMemberTemplate();
}
typedef SpecIterator<FunctionTemplateSpecializationInfo> spec_iterator;
spec_iterator spec_begin() {
return makeSpecIterator(getSpecializations(), false);
}
spec_iterator spec_end() {
return makeSpecIterator(getSpecializations(), true);
}
/// \brief Retrieve the "injected" template arguments that correspond to the
/// template parameters of this function template.
///
/// Although the C++ standard has no notion of the "injected" template
/// arguments for a function template, the notion is convenient when
/// we need to perform substitutions inside the definition of a function
/// template.
std::pair<const TemplateArgument *, unsigned> getInjectedTemplateArgs();
/// \brief Create a function template node.
static FunctionTemplateDecl *Create(ASTContext &C, DeclContext *DC,
SourceLocation L,
DeclarationName Name,
TemplateParameterList *Params,
NamedDecl *Decl);
/// \brief Create an empty function template node.
static FunctionTemplateDecl *Create(ASTContext &C, EmptyShell);
// Implement isa/cast/dyncast support
static bool classof(const Decl *D) { return classofKind(D->getKind()); }
static bool classof(const FunctionTemplateDecl *D) { return true; }
static bool classofKind(Kind K) { return K == FunctionTemplate; }
friend class ASTDeclReader;
friend class ASTDeclWriter;
};
//===----------------------------------------------------------------------===//
// Kinds of Template Parameters
//===----------------------------------------------------------------------===//
/// The TemplateParmPosition class defines the position of a template parameter
/// within a template parameter list. Because template parameter can be listed
/// sequentially for out-of-line template members, each template parameter is
/// given a Depth - the nesting of template parameter scopes - and a Position -
/// the occurrence within the parameter list.
/// This class is inheritedly privately by different kinds of template
/// parameters and is not part of the Decl hierarchy. Just a facility.
class TemplateParmPosition {
protected:
// FIXME: This should probably never be called, but it's here as
TemplateParmPosition()
: Depth(0), Position(0)
{ /* llvm_unreachable("Cannot create positionless template parameter"); */ }
TemplateParmPosition(unsigned D, unsigned P)
: Depth(D), Position(P)
{ }
// FIXME: These probably don't need to be ints. int:5 for depth, int:8 for
// position? Maybe?
unsigned Depth;
unsigned Position;
public:
/// Get the nesting depth of the template parameter.
unsigned getDepth() const { return Depth; }
void setDepth(unsigned D) { Depth = D; }
/// Get the position of the template parameter within its parameter list.
unsigned getPosition() const { return Position; }
void setPosition(unsigned P) { Position = P; }
/// Get the index of the template parameter within its parameter list.
unsigned getIndex() const { return Position; }
};
/// TemplateTypeParmDecl - Declaration of a template type parameter,
/// e.g., "T" in
/// @code
/// template<typename T> class vector;
/// @endcode
class TemplateTypeParmDecl : public TypeDecl {
/// \brief Whether this template type parameter was declaration with
/// the 'typename' keyword. If false, it was declared with the
/// 'class' keyword.
bool Typename : 1;
/// \brief Whether this template type parameter inherited its
/// default argument.
bool InheritedDefault : 1;
/// \brief The default template argument, if any.
TypeSourceInfo *DefaultArgument;
TemplateTypeParmDecl(DeclContext *DC, SourceLocation KeyLoc,
SourceLocation IdLoc, IdentifierInfo *Id,
bool Typename)
: TypeDecl(TemplateTypeParm, DC, IdLoc, Id, KeyLoc), Typename(Typename),
InheritedDefault(false), DefaultArgument() { }
/// Sema creates these on the stack during auto type deduction.
friend class Sema;
public:
static TemplateTypeParmDecl *Create(const ASTContext &C, DeclContext *DC,
SourceLocation KeyLoc,
SourceLocation NameLoc,
unsigned D, unsigned P,
IdentifierInfo *Id, bool Typename,
bool ParameterPack);
static TemplateTypeParmDecl *Create(const ASTContext &C, EmptyShell Empty);
/// \brief Whether this template type parameter was declared with
/// the 'typename' keyword. If not, it was declared with the 'class'
/// keyword.
bool wasDeclaredWithTypename() const { return Typename; }
/// \brief Determine whether this template parameter has a default
/// argument.
bool hasDefaultArgument() const { return DefaultArgument != 0; }
/// \brief Retrieve the default argument, if any.
QualType getDefaultArgument() const { return DefaultArgument->getType(); }
/// \brief Retrieves the default argument's source information, if any.
TypeSourceInfo *getDefaultArgumentInfo() const { return DefaultArgument; }
/// \brief Retrieves the location of the default argument declaration.
SourceLocation getDefaultArgumentLoc() const;
/// \brief Determines whether the default argument was inherited
/// from a previous declaration of this template.
bool defaultArgumentWasInherited() const { return InheritedDefault; }
/// \brief Set the default argument for this template parameter, and
/// whether that default argument was inherited from another
/// declaration.
void setDefaultArgument(TypeSourceInfo *DefArg, bool Inherited) {
DefaultArgument = DefArg;
InheritedDefault = Inherited;
}
/// \brief Removes the default argument of this template parameter.
void removeDefaultArgument() {
DefaultArgument = 0;
InheritedDefault = false;
}
/// \brief Set whether this template type parameter was declared with
/// the 'typename' or 'class' keyword.
void setDeclaredWithTypename(bool withTypename) { Typename = withTypename; }
/// \brief Retrieve the depth of the template parameter.
unsigned getDepth() const;
/// \brief Retrieve the index of the template parameter.
unsigned getIndex() const;
/// \brief Returns whether this is a parameter pack.
bool isParameterPack() const;
SourceRange getSourceRange() const;
// Implement isa/cast/dyncast/etc.
static bool classof(const Decl *D) { return classofKind(D->getKind()); }
static bool classof(const TemplateTypeParmDecl *D) { return true; }
static bool classofKind(Kind K) { return K == TemplateTypeParm; }
};
/// NonTypeTemplateParmDecl - Declares a non-type template parameter,
/// e.g., "Size" in
/// @code
/// template<int Size> class array { };
/// @endcode
class NonTypeTemplateParmDecl
: public DeclaratorDecl, protected TemplateParmPosition {
/// \brief The default template argument, if any, and whether or not
/// it was inherited.
llvm::PointerIntPair<Expr*, 1, bool> DefaultArgumentAndInherited;
// FIXME: Collapse this into TemplateParamPosition; or, just move depth/index
// down here to save memory.
/// \brief Whether this non-type template parameter is a parameter pack.
bool ParameterPack;
/// \brief Whether this non-type template parameter is an "expanded"
/// parameter pack, meaning that its type is a pack expansion and we
/// already know the set of types that expansion expands to.
bool ExpandedParameterPack;
/// \brief The number of types in an expanded parameter pack.
unsigned NumExpandedTypes;
NonTypeTemplateParmDecl(DeclContext *DC, SourceLocation StartLoc,
SourceLocation IdLoc, unsigned D, unsigned P,
IdentifierInfo *Id, QualType T,
bool ParameterPack, TypeSourceInfo *TInfo)
: DeclaratorDecl(NonTypeTemplateParm, DC, IdLoc, Id, T, TInfo, StartLoc),
TemplateParmPosition(D, P), DefaultArgumentAndInherited(0, false),
ParameterPack(ParameterPack), ExpandedParameterPack(false),
NumExpandedTypes(0)
{ }
NonTypeTemplateParmDecl(DeclContext *DC, SourceLocation StartLoc,
SourceLocation IdLoc, unsigned D, unsigned P,
IdentifierInfo *Id, QualType T,
TypeSourceInfo *TInfo,
const QualType *ExpandedTypes,
unsigned NumExpandedTypes,
TypeSourceInfo **ExpandedTInfos);
friend class ASTDeclReader;
public:
static NonTypeTemplateParmDecl *
Create(const ASTContext &C, DeclContext *DC, SourceLocation StartLoc,
SourceLocation IdLoc, unsigned D, unsigned P, IdentifierInfo *Id,
QualType T, bool ParameterPack, TypeSourceInfo *TInfo);
static NonTypeTemplateParmDecl *
Create(const ASTContext &C, DeclContext *DC, SourceLocation StartLoc,
SourceLocation IdLoc, unsigned D, unsigned P, IdentifierInfo *Id,
QualType T, TypeSourceInfo *TInfo,
const QualType *ExpandedTypes, unsigned NumExpandedTypes,
TypeSourceInfo **ExpandedTInfos);
using TemplateParmPosition::getDepth;
using TemplateParmPosition::setDepth;
using TemplateParmPosition::getPosition;
using TemplateParmPosition::setPosition;
using TemplateParmPosition::getIndex;
SourceRange getSourceRange() const;
/// \brief Determine whether this template parameter has a default
/// argument.
bool hasDefaultArgument() const {
return DefaultArgumentAndInherited.getPointer() != 0;
}
/// \brief Retrieve the default argument, if any.
Expr *getDefaultArgument() const {
return DefaultArgumentAndInherited.getPointer();
}
/// \brief Retrieve the location of the default argument, if any.
SourceLocation getDefaultArgumentLoc() const;
/// \brief Determines whether the default argument was inherited
/// from a previous declaration of this template.
bool defaultArgumentWasInherited() const {
return DefaultArgumentAndInherited.getInt();
}
/// \brief Set the default argument for this template parameter, and
/// whether that default argument was inherited from another
/// declaration.
void setDefaultArgument(Expr *DefArg, bool Inherited) {
DefaultArgumentAndInherited.setPointer(DefArg);
DefaultArgumentAndInherited.setInt(Inherited);
}
/// \brief Removes the default argument of this template parameter.
void removeDefaultArgument() {
DefaultArgumentAndInherited.setPointer(0);
DefaultArgumentAndInherited.setInt(false);
}
/// \brief Whether this parameter is a non-type template parameter pack.
///
/// If the parameter is a parameter pack, the type may be a
/// \c PackExpansionType. In the following example, the \c Dims parameter
/// is a parameter pack (whose type is 'unsigned').
///
/// \code
/// template<typename T, unsigned ...Dims> struct multi_array;
/// \endcode
bool isParameterPack() const { return ParameterPack; }
/// \brief Whether this parameter is a non-type template parameter pack
/// that has different types at different positions.
///
/// A parameter pack is an expanded parameter pack when the original
/// parameter pack's type was itself a pack expansion, and that expansion
/// has already been expanded. For example, given:
///
/// \code
/// template<typename ...Types>
/// struct X {
/// template<Types ...Values>
/// struct Y { /* ... */ };
/// };
/// \endcode
///
/// The parameter pack \c Values has a \c PackExpansionType as its type,
/// which expands \c Types. When \c Types is supplied with template arguments
/// by instantiating \c X, the instantiation of \c Values becomes an
/// expanded parameter pack. For example, instantiating
/// \c X<int, unsigned int> results in \c Values being an expanded parameter
/// pack with expansion types \c int and \c unsigned int.
///
/// The \c getExpansionType() and \c getExpansionTypeSourceInfo() functions
/// return the expansion types.
bool isExpandedParameterPack() const { return ExpandedParameterPack; }
/// \brief Retrieves the number of expansion types in an expanded parameter pack.
unsigned getNumExpansionTypes() const {
assert(ExpandedParameterPack && "Not an expansion parameter pack");
return NumExpandedTypes;
}
/// \brief Retrieve a particular expansion type within an expanded parameter
/// pack.
QualType getExpansionType(unsigned I) const {
assert(I < NumExpandedTypes && "Out-of-range expansion type index");
void * const *TypesAndInfos = reinterpret_cast<void * const*>(this + 1);
return QualType::getFromOpaquePtr(TypesAndInfos[2*I]);
}
/// \brief Retrieve a particular expansion type source info within an
/// expanded parameter pack.
TypeSourceInfo *getExpansionTypeSourceInfo(unsigned I) const {
assert(I < NumExpandedTypes && "Out-of-range expansion type index");
void * const *TypesAndInfos = reinterpret_cast<void * const*>(this + 1);
return static_cast<TypeSourceInfo *>(TypesAndInfos[2*I+1]);
}
// Implement isa/cast/dyncast/etc.
static bool classof(const Decl *D) { return classofKind(D->getKind()); }
static bool classof(const NonTypeTemplateParmDecl *D) { return true; }
static bool classofKind(Kind K) { return K == NonTypeTemplateParm; }
};
/// TemplateTemplateParmDecl - Declares a template template parameter,
/// e.g., "T" in
/// @code
/// template <template <typename> class T> class container { };
/// @endcode
/// A template template parameter is a TemplateDecl because it defines the
/// name of a template and the template parameters allowable for substitution.
class TemplateTemplateParmDecl
: public TemplateDecl, protected TemplateParmPosition {
/// DefaultArgument - The default template argument, if any.
TemplateArgumentLoc DefaultArgument;
/// Whether or not the default argument was inherited.
bool DefaultArgumentWasInherited;
/// \brief Whether this parameter is a parameter pack.
bool ParameterPack;
TemplateTemplateParmDecl(DeclContext *DC, SourceLocation L,
unsigned D, unsigned P, bool ParameterPack,
IdentifierInfo *Id, TemplateParameterList *Params)
: TemplateDecl(TemplateTemplateParm, DC, L, Id, Params),
TemplateParmPosition(D, P), DefaultArgument(),
DefaultArgumentWasInherited(false), ParameterPack(ParameterPack)
{ }
public:
static TemplateTemplateParmDecl *Create(const ASTContext &C, DeclContext *DC,
SourceLocation L, unsigned D,
unsigned P, bool ParameterPack,
IdentifierInfo *Id,
TemplateParameterList *Params);
using TemplateParmPosition::getDepth;
using TemplateParmPosition::getPosition;
using TemplateParmPosition::getIndex;
/// \brief Whether this template template parameter is a template
/// parameter pack.
///
/// \code
/// template<template <class T> ...MetaFunctions> struct Apply;
/// \endcode
bool isParameterPack() const { return ParameterPack; }
/// \brief Determine whether this template parameter has a default
/// argument.
bool hasDefaultArgument() const {
return !DefaultArgument.getArgument().isNull();
}
/// \brief Retrieve the default argument, if any.
const TemplateArgumentLoc &getDefaultArgument() const {
return DefaultArgument;
}
/// \brief Retrieve the location of the default argument, if any.
SourceLocation getDefaultArgumentLoc() const;
/// \brief Determines whether the default argument was inherited
/// from a previous declaration of this template.
bool defaultArgumentWasInherited() const {
return DefaultArgumentWasInherited;
}
/// \brief Set the default argument for this template parameter, and
/// whether that default argument was inherited from another
/// declaration.
void setDefaultArgument(const TemplateArgumentLoc &DefArg, bool Inherited) {
DefaultArgument = DefArg;
DefaultArgumentWasInherited = Inherited;
}
/// \brief Removes the default argument of this template parameter.
void removeDefaultArgument() {
DefaultArgument = TemplateArgumentLoc();
DefaultArgumentWasInherited = false;
}
SourceRange getSourceRange() const {
SourceLocation End = getLocation();
if (hasDefaultArgument() && !defaultArgumentWasInherited())
End = getDefaultArgument().getSourceRange().getEnd();
return SourceRange(getTemplateParameters()->getTemplateLoc(), End);
}
// Implement isa/cast/dyncast/etc.
static bool classof(const Decl *D) { return classofKind(D->getKind()); }
static bool classof(const TemplateTemplateParmDecl *D) { return true; }
static bool classofKind(Kind K) { return K == TemplateTemplateParm; }
friend class ASTDeclReader;
friend class ASTDeclWriter;
};
/// \brief Represents a class template specialization, which refers to
/// a class template with a given set of template arguments.
///
/// Class template specializations represent both explicit
/// specialization of class templates, as in the example below, and
/// implicit instantiations of class templates.
///
/// \code
/// template<typename T> class array;
///
/// template<>
/// class array<bool> { }; // class template specialization array<bool>
/// \endcode
class ClassTemplateSpecializationDecl
: public CXXRecordDecl, public llvm::FoldingSetNode {
/// \brief Structure that stores information about a class template
/// specialization that was instantiated from a class template partial
/// specialization.
struct SpecializedPartialSpecialization {
/// \brief The class template partial specialization from which this
/// class template specialization was instantiated.
ClassTemplatePartialSpecializationDecl *PartialSpecialization;
/// \brief The template argument list deduced for the class template
/// partial specialization itself.
TemplateArgumentList *TemplateArgs;
};
/// \brief The template that this specialization specializes
llvm::PointerUnion<ClassTemplateDecl *, SpecializedPartialSpecialization *>
SpecializedTemplate;
/// \brief Further info for explicit template specialization/instantiation.
struct ExplicitSpecializationInfo {
/// \brief The type-as-written.
TypeSourceInfo *TypeAsWritten;
/// \brief The location of the extern keyword.
SourceLocation ExternLoc;
/// \brief The location of the template keyword.
SourceLocation TemplateKeywordLoc;
ExplicitSpecializationInfo()
: TypeAsWritten(0), ExternLoc(), TemplateKeywordLoc() {}
};
/// \brief Further info for explicit template specialization/instantiation.
/// Does not apply to implicit specializations.
ExplicitSpecializationInfo *ExplicitInfo;
/// \brief The template arguments used to describe this specialization.
TemplateArgumentList *TemplateArgs;
/// \brief The point where this template was instantiated (if any)
SourceLocation PointOfInstantiation;
/// \brief The kind of specialization this declaration refers to.
/// Really a value of type TemplateSpecializationKind.
unsigned SpecializationKind : 3;
protected:
ClassTemplateSpecializationDecl(ASTContext &Context, Kind DK, TagKind TK,
DeclContext *DC, SourceLocation StartLoc,
SourceLocation IdLoc,
ClassTemplateDecl *SpecializedTemplate,
const TemplateArgument *Args,
unsigned NumArgs,
ClassTemplateSpecializationDecl *PrevDecl);
explicit ClassTemplateSpecializationDecl(Kind DK);
public:
static ClassTemplateSpecializationDecl *
Create(ASTContext &Context, TagKind TK, DeclContext *DC,
SourceLocation StartLoc, SourceLocation IdLoc,
ClassTemplateDecl *SpecializedTemplate,
const TemplateArgument *Args,
unsigned NumArgs,
ClassTemplateSpecializationDecl *PrevDecl);
static ClassTemplateSpecializationDecl *
Create(ASTContext &Context, EmptyShell Empty);
virtual void getNameForDiagnostic(std::string &S,
const PrintingPolicy &Policy,
bool Qualified) const;
ClassTemplateSpecializationDecl *getMostRecentDeclaration() {
CXXRecordDecl *Recent
= cast<CXXRecordDecl>(CXXRecordDecl::getMostRecentDeclaration());
if (!isa<ClassTemplateSpecializationDecl>(Recent)) {
// FIXME: Does injected class name need to be in the redeclarations chain?
assert(Recent->isInjectedClassName() && Recent->getPreviousDeclaration());
Recent = Recent->getPreviousDeclaration();
}
return cast<ClassTemplateSpecializationDecl>(Recent);
}
/// \brief Retrieve the template that this specialization specializes.
ClassTemplateDecl *getSpecializedTemplate() const;
/// \brief Retrieve the template arguments of the class template
/// specialization.
const TemplateArgumentList &getTemplateArgs() const {
return *TemplateArgs;
}
/// \brief Determine the kind of specialization that this
/// declaration represents.
TemplateSpecializationKind getSpecializationKind() const {
return static_cast<TemplateSpecializationKind>(SpecializationKind);
}
bool isExplicitSpecialization() const {
return getSpecializationKind() == TSK_ExplicitSpecialization;
}
void setSpecializationKind(TemplateSpecializationKind TSK) {
SpecializationKind = TSK;
}
/// \brief Get the point of instantiation (if any), or null if none.
SourceLocation getPointOfInstantiation() const {
return PointOfInstantiation;
}
void setPointOfInstantiation(SourceLocation Loc) {
assert(Loc.isValid() && "point of instantiation must be valid!");
PointOfInstantiation = Loc;
}
/// \brief If this class template specialization is an instantiation of
/// a template (rather than an explicit specialization), return the
/// class template or class template partial specialization from which it
/// was instantiated.
llvm::PointerUnion<ClassTemplateDecl *,
ClassTemplatePartialSpecializationDecl *>
getInstantiatedFrom() const {
if (getSpecializationKind() != TSK_ImplicitInstantiation &&
getSpecializationKind() != TSK_ExplicitInstantiationDefinition &&
getSpecializationKind() != TSK_ExplicitInstantiationDeclaration)
return llvm::PointerUnion<ClassTemplateDecl *,
ClassTemplatePartialSpecializationDecl *>();
if (SpecializedPartialSpecialization *PartialSpec
= SpecializedTemplate.dyn_cast<SpecializedPartialSpecialization*>())
return PartialSpec->PartialSpecialization;
return const_cast<ClassTemplateDecl*>(
SpecializedTemplate.get<ClassTemplateDecl*>());
}
/// \brief Retrieve the class template or class template partial
/// specialization which was specialized by this.
llvm::PointerUnion<ClassTemplateDecl *,
ClassTemplatePartialSpecializationDecl *>
getSpecializedTemplateOrPartial() const {
if (SpecializedPartialSpecialization *PartialSpec
= SpecializedTemplate.dyn_cast<SpecializedPartialSpecialization*>())
return PartialSpec->PartialSpecialization;
return const_cast<ClassTemplateDecl*>(
SpecializedTemplate.get<ClassTemplateDecl*>());
}
/// \brief Retrieve the set of template arguments that should be used
/// to instantiate members of the class template or class template partial
/// specialization from which this class template specialization was
/// instantiated.
///
/// \returns For a class template specialization instantiated from the primary
/// template, this function will return the same template arguments as
/// getTemplateArgs(). For a class template specialization instantiated from
/// a class template partial specialization, this function will return the
/// deduced template arguments for the class template partial specialization
/// itself.
const TemplateArgumentList &getTemplateInstantiationArgs() const {
if (SpecializedPartialSpecialization *PartialSpec
= SpecializedTemplate.dyn_cast<SpecializedPartialSpecialization*>())
return *PartialSpec->TemplateArgs;
return getTemplateArgs();
}
/// \brief Note that this class template specialization is actually an
/// instantiation of the given class template partial specialization whose
/// template arguments have been deduced.
void setInstantiationOf(ClassTemplatePartialSpecializationDecl *PartialSpec,
TemplateArgumentList *TemplateArgs) {
assert(!SpecializedTemplate.is<SpecializedPartialSpecialization*>() &&
"Already set to a class template partial specialization!");
SpecializedPartialSpecialization *PS
= new (getASTContext()) SpecializedPartialSpecialization();
PS->PartialSpecialization = PartialSpec;
PS->TemplateArgs = TemplateArgs;
SpecializedTemplate = PS;
}
/// \brief Note that this class template specialization is an instantiation
/// of the given class template.
void setInstantiationOf(ClassTemplateDecl *TemplDecl) {
assert(!SpecializedTemplate.is<SpecializedPartialSpecialization*>() &&
"Previously set to a class template partial specialization!");
SpecializedTemplate = TemplDecl;
}
/// \brief Sets the type of this specialization as it was written by
/// the user. This will be a class template specialization type.
void setTypeAsWritten(TypeSourceInfo *T) {
if (!ExplicitInfo)
ExplicitInfo = new (getASTContext()) ExplicitSpecializationInfo;
ExplicitInfo->TypeAsWritten = T;
}
/// \brief Gets the type of this specialization as it was written by
/// the user, if it was so written.
TypeSourceInfo *getTypeAsWritten() const {
return ExplicitInfo ? ExplicitInfo->TypeAsWritten : 0;
}
/// \brief Gets the location of the extern keyword, if present.
SourceLocation getExternLoc() const {
return ExplicitInfo ? ExplicitInfo->ExternLoc : SourceLocation();
}
/// \brief Sets the location of the extern keyword.
void setExternLoc(SourceLocation Loc) {
if (!ExplicitInfo)
ExplicitInfo = new (getASTContext()) ExplicitSpecializationInfo;
ExplicitInfo->ExternLoc = Loc;
}
/// \brief Sets the location of the template keyword.
void setTemplateKeywordLoc(SourceLocation Loc) {
if (!ExplicitInfo)
ExplicitInfo = new (getASTContext()) ExplicitSpecializationInfo;
ExplicitInfo->TemplateKeywordLoc = Loc;
}
/// \brief Gets the location of the template keyword, if present.
SourceLocation getTemplateKeywordLoc() const {
return ExplicitInfo ? ExplicitInfo->TemplateKeywordLoc : SourceLocation();
}
SourceRange getSourceRange() const;
void Profile(llvm::FoldingSetNodeID &ID) const {
Profile(ID, TemplateArgs->data(), TemplateArgs->size(), getASTContext());
}
static void
Profile(llvm::FoldingSetNodeID &ID, const TemplateArgument *TemplateArgs,
unsigned NumTemplateArgs, ASTContext &Context) {
ID.AddInteger(NumTemplateArgs);
for (unsigned Arg = 0; Arg != NumTemplateArgs; ++Arg)
TemplateArgs[Arg].Profile(ID, Context);
}
static bool classof(const Decl *D) { return classofKind(D->getKind()); }
static bool classofKind(Kind K) {
return K >= firstClassTemplateSpecialization &&
K <= lastClassTemplateSpecialization;
}
static bool classof(const ClassTemplateSpecializationDecl *) {
return true;
}
static bool classof(const ClassTemplatePartialSpecializationDecl *) {
return true;
}
friend class ASTDeclReader;
friend class ASTDeclWriter;
};
class ClassTemplatePartialSpecializationDecl
: public ClassTemplateSpecializationDecl {
/// \brief The list of template parameters
TemplateParameterList* TemplateParams;
/// \brief The source info for the template arguments as written.
/// FIXME: redundant with TypeAsWritten?
TemplateArgumentLoc *ArgsAsWritten;
unsigned NumArgsAsWritten;
/// \brief Sequence number indicating when this class template partial
/// specialization was added to the set of partial specializations for
/// its owning class template.
unsigned SequenceNumber;
/// \brief The class template partial specialization from which this
/// class template partial specialization was instantiated.
///
/// The boolean value will be true to indicate that this class template
/// partial specialization was specialized at this level.
llvm::PointerIntPair<ClassTemplatePartialSpecializationDecl *, 1, bool>
InstantiatedFromMember;
ClassTemplatePartialSpecializationDecl(ASTContext &Context, TagKind TK,
DeclContext *DC,
SourceLocation StartLoc,
SourceLocation IdLoc,
TemplateParameterList *Params,
ClassTemplateDecl *SpecializedTemplate,
const TemplateArgument *Args,
unsigned NumArgs,
TemplateArgumentLoc *ArgInfos,
unsigned NumArgInfos,
ClassTemplatePartialSpecializationDecl *PrevDecl,
unsigned SequenceNumber);
ClassTemplatePartialSpecializationDecl()
: ClassTemplateSpecializationDecl(ClassTemplatePartialSpecialization),
TemplateParams(0), ArgsAsWritten(0),
NumArgsAsWritten(0), SequenceNumber(0),
InstantiatedFromMember(0, false) { }
public:
static ClassTemplatePartialSpecializationDecl *
Create(ASTContext &Context, TagKind TK,DeclContext *DC,
SourceLocation StartLoc, SourceLocation IdLoc,
TemplateParameterList *Params,
ClassTemplateDecl *SpecializedTemplate,
const TemplateArgument *Args,
unsigned NumArgs,
const TemplateArgumentListInfo &ArgInfos,
QualType CanonInjectedType,
ClassTemplatePartialSpecializationDecl *PrevDecl,
unsigned SequenceNumber);
static ClassTemplatePartialSpecializationDecl *
Create(ASTContext &Context, EmptyShell Empty);
ClassTemplatePartialSpecializationDecl *getMostRecentDeclaration() {
return cast<ClassTemplatePartialSpecializationDecl>(
ClassTemplateSpecializationDecl::getMostRecentDeclaration());
}
/// Get the list of template parameters
TemplateParameterList *getTemplateParameters() const {
return TemplateParams;
}
/// Get the template arguments as written.
TemplateArgumentLoc *getTemplateArgsAsWritten() const {
return ArgsAsWritten;
}
/// Get the number of template arguments as written.
unsigned getNumTemplateArgsAsWritten() const {
return NumArgsAsWritten;
}
/// \brief Get the sequence number for this class template partial
/// specialization.
unsigned getSequenceNumber() const { return SequenceNumber; }
/// \brief Retrieve the member class template partial specialization from
/// which this particular class template partial specialization was
/// instantiated.
///
/// \code
/// template<typename T>
/// struct Outer {
/// template<typename U> struct Inner;
/// template<typename U> struct Inner<U*> { }; // #1
/// };
///
/// Outer<float>::Inner<int*> ii;
/// \endcode
///
/// In this example, the instantiation of \c Outer<float>::Inner<int*> will
/// end up instantiating the partial specialization
/// \c Outer<float>::Inner<U*>, which itself was instantiated from the class
/// template partial specialization \c Outer<T>::Inner<U*>. Given
/// \c Outer<float>::Inner<U*>, this function would return
/// \c Outer<T>::Inner<U*>.
ClassTemplatePartialSpecializationDecl *getInstantiatedFromMember() {
ClassTemplatePartialSpecializationDecl *First
= cast<ClassTemplatePartialSpecializationDecl>(getFirstDeclaration());
return First->InstantiatedFromMember.getPointer();
}
void setInstantiatedFromMember(
ClassTemplatePartialSpecializationDecl *PartialSpec) {
ClassTemplatePartialSpecializationDecl *First
= cast<ClassTemplatePartialSpecializationDecl>(getFirstDeclaration());
First->InstantiatedFromMember.setPointer(PartialSpec);
}
/// \brief Determines whether this class template partial specialization
/// template was a specialization of a member partial specialization.
///
/// In the following example, the member template partial specialization
/// \c X<int>::Inner<T*> is a member specialization.
///
/// \code
/// template<typename T>
/// struct X {
/// template<typename U> struct Inner;
/// template<typename U> struct Inner<U*>;
/// };
///
/// template<> template<typename T>
/// struct X<int>::Inner<T*> { /* ... */ };
/// \endcode
bool isMemberSpecialization() {
ClassTemplatePartialSpecializationDecl *First
= cast<ClassTemplatePartialSpecializationDecl>(getFirstDeclaration());
return First->InstantiatedFromMember.getInt();
}
/// \brief Note that this member template is a specialization.
void setMemberSpecialization() {
ClassTemplatePartialSpecializationDecl *First
= cast<ClassTemplatePartialSpecializationDecl>(getFirstDeclaration());
assert(First->InstantiatedFromMember.getPointer() &&
"Only member templates can be member template specializations");
return First->InstantiatedFromMember.setInt(true);
}
/// Retrieves the injected specialization type for this partial
/// specialization. This is not the same as the type-decl-type for
/// this partial specialization, which is an InjectedClassNameType.
QualType getInjectedSpecializationType() const {
assert(getTypeForDecl() && "partial specialization has no type set!");
return cast<InjectedClassNameType>(getTypeForDecl())
->getInjectedSpecializationType();
}
// FIXME: Add Profile support!
static bool classof(const Decl *D) { return classofKind(D->getKind()); }
static bool classofKind(Kind K) {
return K == ClassTemplatePartialSpecialization;
}
static bool classof(const ClassTemplatePartialSpecializationDecl *) {
return true;
}
friend class ASTDeclReader;
friend class ASTDeclWriter;
};
/// Declaration of a class template.
class ClassTemplateDecl : public RedeclarableTemplateDecl,
public RedeclarableTemplate<ClassTemplateDecl> {
static void DeallocateCommon(void *Ptr);
protected:
typedef RedeclarableTemplate<ClassTemplateDecl> redeclarable_base;
/// \brief Data that is common to all of the declarations of a given
/// class template.
struct Common : CommonBase {
Common() : LazySpecializations() { }
/// \brief The class template specializations for this class
/// template, including explicit specializations and instantiations.
llvm::FoldingSet<ClassTemplateSpecializationDecl> Specializations;
/// \brief The class template partial specializations for this class
/// template.
llvm::FoldingSet<ClassTemplatePartialSpecializationDecl>
PartialSpecializations;
/// \brief The injected-class-name type for this class template.
QualType InjectedClassNameType;
/// \brief If non-null, points to an array of specializations (including
/// partial specializations) known ownly by their external declaration IDs.
///
/// The first value in the array is the number of of specializations/
/// partial specializations that follow.
uint32_t *LazySpecializations;
};
/// \brief Load any lazily-loaded specializations from the external source.
void LoadLazySpecializations();
/// \brief Retrieve the set of specializations of this class template.
llvm::FoldingSet<ClassTemplateSpecializationDecl> &getSpecializations();
/// \brief Retrieve the set of partial specializations of this class
/// template.
llvm::FoldingSet<ClassTemplatePartialSpecializationDecl> &
getPartialSpecializations();
ClassTemplateDecl(DeclContext *DC, SourceLocation L, DeclarationName Name,
TemplateParameterList *Params, NamedDecl *Decl)
: RedeclarableTemplateDecl(ClassTemplate, DC, L, Name, Params, Decl) { }
ClassTemplateDecl(EmptyShell Empty)
: RedeclarableTemplateDecl(ClassTemplate, 0, SourceLocation(),
DeclarationName(), 0, 0) { }
CommonBase *newCommon(ASTContext &C);
Common *getCommonPtr() {
return static_cast<Common *>(RedeclarableTemplateDecl::getCommonPtr());
}
public:
/// Get the underlying class declarations of the template.
CXXRecordDecl *getTemplatedDecl() const {
return static_cast<CXXRecordDecl *>(TemplatedDecl);
}
/// Returns whether this template declaration defines the primary
/// class pattern.
bool isThisDeclarationADefinition() const {
return getTemplatedDecl()->isThisDeclarationADefinition();
}
/// Create a class template node.
static ClassTemplateDecl *Create(ASTContext &C, DeclContext *DC,
SourceLocation L,
DeclarationName Name,
TemplateParameterList *Params,
NamedDecl *Decl,
ClassTemplateDecl *PrevDecl);
/// Create an empty class template node.
static ClassTemplateDecl *Create(ASTContext &C, EmptyShell);
/// \brief Return the specialization with the provided arguments if it exists,
/// otherwise return the insertion point.
ClassTemplateSpecializationDecl *
findSpecialization(const TemplateArgument *Args, unsigned NumArgs,
void *&InsertPos);
/// \brief Insert the specified specialization knowing that it is not already
/// in. InsertPos must be obtained from findSpecialization.
void AddSpecialization(ClassTemplateSpecializationDecl *D, void *InsertPos);
ClassTemplateDecl *getCanonicalDecl() {
return redeclarable_base::getCanonicalDecl();
}
const ClassTemplateDecl *getCanonicalDecl() const {
return redeclarable_base::getCanonicalDecl();
}
/// \brief Retrieve the previous declaration of this class template, or
/// NULL if no such declaration exists.
ClassTemplateDecl *getPreviousDeclaration() {
return redeclarable_base::getPreviousDeclaration();
}
/// \brief Retrieve the previous declaration of this class template, or
/// NULL if no such declaration exists.
const ClassTemplateDecl *getPreviousDeclaration() const {
return redeclarable_base::getPreviousDeclaration();
}
ClassTemplateDecl *getInstantiatedFromMemberTemplate() {
return redeclarable_base::getInstantiatedFromMemberTemplate();
}
/// \brief Return the partial specialization with the provided arguments if it
/// exists, otherwise return the insertion point.
ClassTemplatePartialSpecializationDecl *
findPartialSpecialization(const TemplateArgument *Args, unsigned NumArgs,
void *&InsertPos);
/// \brief Insert the specified partial specialization knowing that it is not
/// already in. InsertPos must be obtained from findPartialSpecialization.
void AddPartialSpecialization(ClassTemplatePartialSpecializationDecl *D,
void *InsertPos);
/// \brief Return the next partial specialization sequence number.
unsigned getNextPartialSpecSequenceNumber() {
return getPartialSpecializations().size();
}
/// \brief Retrieve the partial specializations as an ordered list.
void getPartialSpecializations(
SmallVectorImpl<ClassTemplatePartialSpecializationDecl *> &PS);
/// \brief Find a class template partial specialization with the given
/// type T.
///
/// \param T a dependent type that names a specialization of this class
/// template.
///
/// \returns the class template partial specialization that exactly matches
/// the type \p T, or NULL if no such partial specialization exists.
ClassTemplatePartialSpecializationDecl *findPartialSpecialization(QualType T);
/// \brief Find a class template partial specialization which was instantiated
/// from the given member partial specialization.
///
/// \param D a member class template partial specialization.
///
/// \returns the class template partial specialization which was instantiated
/// from the given member partial specialization, or NULL if no such partial
/// specialization exists.
ClassTemplatePartialSpecializationDecl *
findPartialSpecInstantiatedFromMember(
ClassTemplatePartialSpecializationDecl *D);
/// \brief Retrieve the template specialization type of the
/// injected-class-name for this class template.
///
/// The injected-class-name for a class template \c X is \c
/// X<template-args>, where \c template-args is formed from the
/// template arguments that correspond to the template parameters of
/// \c X. For example:
///
/// \code
/// template<typename T, int N>
/// struct array {
/// typedef array this_type; // "array" is equivalent to "array<T, N>"
/// };
/// \endcode
QualType getInjectedClassNameSpecialization();
typedef SpecIterator<ClassTemplateSpecializationDecl> spec_iterator;
spec_iterator spec_begin() {
return makeSpecIterator(getSpecializations(), false);
}
spec_iterator spec_end() {
return makeSpecIterator(getSpecializations(), true);
}
typedef SpecIterator<ClassTemplatePartialSpecializationDecl>
partial_spec_iterator;
partial_spec_iterator partial_spec_begin() {
return makeSpecIterator(getPartialSpecializations(), false);
}
partial_spec_iterator partial_spec_end() {
return makeSpecIterator(getPartialSpecializations(), true);
}
// Implement isa/cast/dyncast support
static bool classof(const Decl *D) { return classofKind(D->getKind()); }
static bool classof(const ClassTemplateDecl *D) { return true; }
static bool classofKind(Kind K) { return K == ClassTemplate; }
friend class ASTDeclReader;
friend class ASTDeclWriter;
};
/// Declaration of a friend template. For example:
///
/// template <typename T> class A {
/// friend class MyVector<T>; // not a friend template
/// template <typename U> friend class B; // not a friend template
/// template <typename U> friend class Foo<T>::Nested; // friend template
/// };
/// NOTE: This class is not currently in use. All of the above
/// will yield a FriendDecl, not a FriendTemplateDecl.
class FriendTemplateDecl : public Decl {
public:
typedef llvm::PointerUnion<NamedDecl*,TypeSourceInfo*> FriendUnion;
private:
// The number of template parameters; always non-zero.
unsigned NumParams;
// The parameter list.
TemplateParameterList **Params;
// The declaration that's a friend of this class.
FriendUnion Friend;
// Location of the 'friend' specifier.
SourceLocation FriendLoc;
FriendTemplateDecl(DeclContext *DC, SourceLocation Loc,
unsigned NParams,
TemplateParameterList **Params,
FriendUnion Friend,
SourceLocation FriendLoc)
: Decl(Decl::FriendTemplate, DC, Loc),
NumParams(NParams),
Params(Params),
Friend(Friend),
FriendLoc(FriendLoc)
{}
FriendTemplateDecl(EmptyShell Empty)
: Decl(Decl::FriendTemplate, Empty),
NumParams(0),
Params(0)
{}
public:
static FriendTemplateDecl *Create(ASTContext &Context,
DeclContext *DC, SourceLocation Loc,
unsigned NParams,
TemplateParameterList **Params,
FriendUnion Friend,
SourceLocation FriendLoc);
static FriendTemplateDecl *Create(ASTContext &Context, EmptyShell Empty);
/// If this friend declaration names a templated type (or
/// a dependent member type of a templated type), return that
/// type; otherwise return null.
TypeSourceInfo *getFriendType() const {
return Friend.dyn_cast<TypeSourceInfo*>();
}
/// If this friend declaration names a templated function (or
/// a member function of a templated type), return that type;
/// otherwise return null.
NamedDecl *getFriendDecl() const {
return Friend.dyn_cast<NamedDecl*>();
}
/// Retrieves the location of the 'friend' keyword.
SourceLocation getFriendLoc() const {
return FriendLoc;
}
TemplateParameterList *getTemplateParameterList(unsigned i) const {
assert(i <= NumParams);
return Params[i];
}
unsigned getNumTemplateParameters() const {
return NumParams;
}
// Implement isa/cast/dyncast/etc.
static bool classof(const Decl *D) { return classofKind(D->getKind()); }
static bool classofKind(Kind K) { return K == Decl::FriendTemplate; }
static bool classof(const FriendTemplateDecl *D) { return true; }
friend class ASTDeclReader;
};
/// Declaration of an alias template. For example:
///
/// template <typename T> using V = std::map<T*, int, MyCompare<T>>;
class TypeAliasTemplateDecl : public RedeclarableTemplateDecl,
public RedeclarableTemplate<TypeAliasTemplateDecl> {
static void DeallocateCommon(void *Ptr);
protected:
typedef RedeclarableTemplate<TypeAliasTemplateDecl> redeclarable_base;
typedef CommonBase Common;
TypeAliasTemplateDecl(DeclContext *DC, SourceLocation L, DeclarationName Name,
TemplateParameterList *Params, NamedDecl *Decl)
: RedeclarableTemplateDecl(TypeAliasTemplate, DC, L, Name, Params, Decl) { }
CommonBase *newCommon(ASTContext &C);
Common *getCommonPtr() {
return static_cast<Common *>(RedeclarableTemplateDecl::getCommonPtr());
}
public:
/// Get the underlying function declaration of the template.
TypeAliasDecl *getTemplatedDecl() const {
return static_cast<TypeAliasDecl*>(TemplatedDecl);
}
TypeAliasTemplateDecl *getCanonicalDecl() {
return redeclarable_base::getCanonicalDecl();
}
const TypeAliasTemplateDecl *getCanonicalDecl() const {
return redeclarable_base::getCanonicalDecl();
}
/// \brief Retrieve the previous declaration of this function template, or
/// NULL if no such declaration exists.
TypeAliasTemplateDecl *getPreviousDeclaration() {
return redeclarable_base::getPreviousDeclaration();
}
/// \brief Retrieve the previous declaration of this function template, or
/// NULL if no such declaration exists.
const TypeAliasTemplateDecl *getPreviousDeclaration() const {
return redeclarable_base::getPreviousDeclaration();
}
TypeAliasTemplateDecl *getInstantiatedFromMemberTemplate() {
return redeclarable_base::getInstantiatedFromMemberTemplate();
}
/// \brief Create a function template node.
static TypeAliasTemplateDecl *Create(ASTContext &C, DeclContext *DC,
SourceLocation L,
DeclarationName Name,
TemplateParameterList *Params,
NamedDecl *Decl);
/// \brief Create an empty alias template node.
static TypeAliasTemplateDecl *Create(ASTContext &C, EmptyShell);
// Implement isa/cast/dyncast support
static bool classof(const Decl *D) { return classofKind(D->getKind()); }
static bool classof(const TypeAliasTemplateDecl *D) { return true; }
static bool classofKind(Kind K) { return K == TypeAliasTemplate; }
friend class ASTDeclReader;
friend class ASTDeclWriter;
};
/// Declaration of a function specialization at template class scope.
/// This is a non standard extension needed to support MSVC.
/// For example:
/// template <class T>
/// class A {
/// template <class U> void foo(U a) { }
/// template<> void foo(int a) { }
/// }
///
/// "template<> foo(int a)" will be saved in Specialization as a normal
/// CXXMethodDecl. Then during an instantiation of class A, it will be
/// transformed into an actual function specialization.
class ClassScopeFunctionSpecializationDecl : public Decl {
private:
ClassScopeFunctionSpecializationDecl(DeclContext *DC, SourceLocation Loc,
CXXMethodDecl *FD)
: Decl(Decl::ClassScopeFunctionSpecialization, DC, Loc),
Specialization(FD) {}
ClassScopeFunctionSpecializationDecl(EmptyShell Empty)
: Decl(Decl::ClassScopeFunctionSpecialization, Empty) {}
CXXMethodDecl *Specialization;
public:
CXXMethodDecl *getSpecialization() const { return Specialization; }
static ClassScopeFunctionSpecializationDecl *Create(ASTContext &C,
DeclContext *DC,
SourceLocation Loc,
CXXMethodDecl *FD) {
return new (C) ClassScopeFunctionSpecializationDecl(DC , Loc, FD);
}
static ClassScopeFunctionSpecializationDecl *Create(ASTContext &Context,
EmptyShell Empty) {
return new (Context)ClassScopeFunctionSpecializationDecl(0,
SourceLocation(), 0);
}
// Implement isa/cast/dyncast/etc.
static bool classof(const Decl *D) { return classofKind(D->getKind()); }
static bool classofKind(Kind K) {
return K == Decl::ClassScopeFunctionSpecialization;
}
static bool classof(const ClassScopeFunctionSpecializationDecl *D) {
return true;
}
friend class ASTDeclReader;
friend class ASTDeclWriter;
};
/// Implementation of inline functions that require the template declarations
inline AnyFunctionDecl::AnyFunctionDecl(FunctionTemplateDecl *FTD)
: Function(FTD) { }
} /* end of namespace clang */
#endif
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