/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp

Bug Summary

File:	tools/clang/lib/AST/Decl.cpp
Warning:	line 2077, column 5 Called C++ object pointer is null

Annotated Source Code

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clang -cc1 -triple x86_64-pc-linux-gnu -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name Decl.cpp -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-eagerly-assume -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=cplusplus -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -mrelocation-model pic -pic-level 2 -mthread-model posix -relaxed-aliasing -fmath-errno -masm-verbose -mconstructor-aliases -munwind-tables -fuse-init-array -target-cpu x86-64 -dwarf-column-info -debugger-tuning=gdb -momit-leaf-frame-pointer -ffunction-sections -fdata-sections -resource-dir /usr/lib/llvm-7/lib/clang/7.0.0 -D _DEBUG -D _GNU_SOURCE -D __STDC_CONSTANT_MACROS -D __STDC_FORMAT_MACROS -D __STDC_LIMIT_MACROS -I /build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/lib/AST -I /build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST -I /build/llvm-toolchain-snapshot-7~svn329677/tools/clang/include -I /build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include -I /build/llvm-toolchain-snapshot-7~svn329677/build-llvm/include -I /build/llvm-toolchain-snapshot-7~svn329677/include -U NDEBUG -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/7.3.0/../../../../include/c++/7.3.0 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/7.3.0/../../../../include/x86_64-linux-gnu/c++/7.3.0 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/7.3.0/../../../../include/x86_64-linux-gnu/c++/7.3.0 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/7.3.0/../../../../include/c++/7.3.0/backward -internal-isystem /usr/include/clang/7.0.0/include/ -internal-isystem /usr/local/include -internal-isystem /usr/lib/llvm-7/lib/clang/7.0.0/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -O2 -Wno-unused-parameter -Wwrite-strings -Wno-missing-field-initializers -Wno-long-long -Wno-maybe-uninitialized -Wno-comment -std=c++11 -fdeprecated-macro -fdebug-compilation-dir /build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/lib/AST -ferror-limit 19 -fmessage-length 0 -fvisibility-inlines-hidden -fobjc-runtime=gcc -fno-common -fdiagnostics-show-option -vectorize-loops -vectorize-slp -analyzer-checker optin.performance.Padding -analyzer-output=html -analyzer-config stable-report-filename=true -o /tmp/scan-build-2018-04-11-031539-24776-1 -x c++ /build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp

/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp

→

1//===- Decl.cpp - Declaration AST Node Implementation ---------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This file implements the Decl subclasses.
11//
12//===----------------------------------------------------------------------===//

14#include "clang/AST/Decl.h"
15#include "Linkage.h"
16#include "clang/AST/ASTContext.h"
17#include "clang/AST/ASTLambda.h"
18#include "clang/AST/ASTMutationListener.h"
19#include "clang/AST/CanonicalType.h"
20#include "clang/AST/DeclBase.h"
21#include "clang/AST/DeclCXX.h"
22#include "clang/AST/DeclObjC.h"
23#include "clang/AST/DeclOpenMP.h"
24#include "clang/AST/DeclTemplate.h"
25#include "clang/AST/DeclarationName.h"
26#include "clang/AST/Expr.h"
27#include "clang/AST/ExprCXX.h"
28#include "clang/AST/ExternalASTSource.h"
29#include "clang/AST/ODRHash.h"
30#include "clang/AST/PrettyDeclStackTrace.h"
31#include "clang/AST/PrettyPrinter.h"
32#include "clang/AST/Redeclarable.h"
33#include "clang/AST/Stmt.h"
34#include "clang/AST/TemplateBase.h"
35#include "clang/AST/Type.h"
36#include "clang/AST/TypeLoc.h"
37#include "clang/Basic/Builtins.h"
38#include "clang/Basic/IdentifierTable.h"
39#include "clang/Basic/LLVM.h"
40#include "clang/Basic/LangOptions.h"
41#include "clang/Basic/Linkage.h"
42#include "clang/Basic/Module.h"
43#include "clang/Basic/PartialDiagnostic.h"
44#include "clang/Basic/SanitizerBlacklist.h"
45#include "clang/Basic/Sanitizers.h"
46#include "clang/Basic/SourceLocation.h"
47#include "clang/Basic/SourceManager.h"
48#include "clang/Basic/Specifiers.h"
49#include "clang/Basic/TargetCXXABI.h"
50#include "clang/Basic/TargetInfo.h"
51#include "clang/Basic/Visibility.h"
52#include "clang/Frontend/FrontendDiagnostic.h"
53#include "llvm/ADT/APSInt.h"
54#include "llvm/ADT/ArrayRef.h"
55#include "llvm/ADT/None.h"
56#include "llvm/ADT/Optional.h"
57#include "llvm/ADT/STLExtras.h"
58#include "llvm/ADT/SmallVector.h"
59#include "llvm/ADT/StringSwitch.h"
60#include "llvm/ADT/StringRef.h"
61#include "llvm/ADT/Triple.h"
62#include "llvm/Support/Casting.h"
63#include "llvm/Support/ErrorHandling.h"
64#include "llvm/Support/raw_ostream.h"
65#include <algorithm>
66#include <cassert>
67#include <cstddef>
68#include <cstring>
69#include <memory>
70#include <string>
71#include <tuple>
72#include <type_traits>

74using namespace clang;

76Decl *clang::getPrimaryMergedDecl(Decl *D) {
return D->getASTContext().getPrimaryMergedDecl(D);
78}

80void PrettyDeclStackTraceEntry::print(raw_ostream &OS) const {
SourceLocation Loc = this->Loc;
if (!Loc.isValid() && TheDecl) Loc = TheDecl->getLocation();
if (Loc.isValid()) {
  Loc.print(OS, Context.getSourceManager());
  OS << ": ";
}
OS << Message;

if (auto *ND = dyn_cast_or_null<NamedDecl>(TheDecl)) {
  OS << " '";
  ND->getNameForDiagnostic(OS, Context.getPrintingPolicy(), true);
  OS << "'";
}

OS << '\n';
96}

98// Defined here so that it can be inlined into its direct callers.
99bool Decl::isOutOfLine() const {
return !getLexicalDeclContext()->Equals(getDeclContext());
101}

103TranslationUnitDecl::TranslationUnitDecl(ASTContext &ctx)
  : Decl(TranslationUnit, nullptr, SourceLocation()),
    DeclContext(TranslationUnit), Ctx(ctx) {}

107//===----------------------------------------------------------------------===//
108// NamedDecl Implementation
109//===----------------------------------------------------------------------===//

111// Visibility rules aren't rigorously externally specified, but here
112// are the basic principles behind what we implement:
113//
114// 1. An explicit visibility attribute is generally a direct expression
115// of the user's intent and should be honored.  Only the innermost
116// visibility attribute applies.  If no visibility attribute applies,
117// global visibility settings are considered.
118//
119// 2. There is one caveat to the above: on or in a template pattern,
120// an explicit visibility attribute is just a default rule, and
121// visibility can be decreased by the visibility of template
122// arguments.  But this, too, has an exception: an attribute on an
123// explicit specialization or instantiation causes all the visibility
124// restrictions of the template arguments to be ignored.
125//
126// 3. A variable that does not otherwise have explicit visibility can
127// be restricted by the visibility of its type.
128//
129// 4. A visibility restriction is explicit if it comes from an
130// attribute (or something like it), not a global visibility setting.
131// When emitting a reference to an external symbol, visibility
132// restrictions are ignored unless they are explicit.
133//
134// 5. When computing the visibility of a non-type, including a
135// non-type member of a class, only non-type visibility restrictions
136// are considered: the 'visibility' attribute, global value-visibility
137// settings, and a few special cases like __private_extern.
138//
139// 6. When computing the visibility of a type, including a type member
140// of a class, only type visibility restrictions are considered:
141// the 'type_visibility' attribute and global type-visibility settings.
142// However, a 'visibility' attribute counts as a 'type_visibility'
143// attribute on any declaration that only has the former.
144//
145// The visibility of a "secondary" entity, like a template argument,
146// is computed using the kind of that entity, not the kind of the
147// primary entity for which we are computing visibility.  For example,
148// the visibility of a specialization of either of these templates:
149//   template <class T, bool (&compare)(T, X)> bool has_match(list<T>, X);
150//   template <class T, bool (&compare)(T, X)> class matcher;
151// is restricted according to the type visibility of the argument 'T',
152// the type visibility of 'bool(&)(T,X)', and the value visibility of
153// the argument function 'compare'.  That 'has_match' is a value
154// and 'matcher' is a type only matters when looking for attributes
155// and settings from the immediate context.

157/// Does this computation kind permit us to consider additional
158/// visibility settings from attributes and the like?
159static bool hasExplicitVisibilityAlready(LVComputationKind computation) {
return computation.IgnoreExplicitVisibility;
161}

163/// Given an LVComputationKind, return one of the same type/value sort
164/// that records that it already has explicit visibility.
165static LVComputationKind
166withExplicitVisibilityAlready(LVComputationKind Kind) {
Kind.IgnoreExplicitVisibility = true;
return Kind;
169}

171static Optional<Visibility> getExplicitVisibility(const NamedDecl *D,
                                                LVComputationKind kind) {
assert(!kind.IgnoreExplicitVisibility &&(static_cast <bool> (!kind.IgnoreExplicitVisibility &&
 "asking for explicit visibility when we shouldn't be") ? void
 (0) : __assert_fail ("!kind.IgnoreExplicitVisibility && \"asking for explicit visibility when we shouldn't be\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 174, __extension__ __PRETTY_FUNCTION__))
       "asking for explicit visibility when we shouldn't be")(static_cast <bool> (!kind.IgnoreExplicitVisibility &&
 "asking for explicit visibility when we shouldn't be") ? void
 (0) : __assert_fail ("!kind.IgnoreExplicitVisibility && \"asking for explicit visibility when we shouldn't be\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 174, __extension__ __PRETTY_FUNCTION__));
return D->getExplicitVisibility(kind.getExplicitVisibilityKind());
176}

178/// Is the given declaration a "type" or a "value" for the purposes of
179/// visibility computation?
180static bool usesTypeVisibility(const NamedDecl *D) {
return isa<TypeDecl>(D) ||
       isa<ClassTemplateDecl>(D) ||
       isa<ObjCInterfaceDecl>(D);
184}

186/// Does the given declaration have member specialization information,
187/// and if so, is it an explicit specialization?
188template <class T> static typename
189std::enable_if<!std::is_base_of<RedeclarableTemplateDecl, T>::value, bool>::type
190isExplicitMemberSpecialization(const T *D) {
if (const MemberSpecializationInfo *member =
      D->getMemberSpecializationInfo()) {
  return member->isExplicitSpecialization();
}
return false;
196}

198/// For templates, this question is easier: a member template can't be
199/// explicitly instantiated, so there's a single bit indicating whether
200/// or not this is an explicit member specialization.
201static bool isExplicitMemberSpecialization(const RedeclarableTemplateDecl *D) {
return D->isMemberSpecialization();
203}

205/// Given a visibility attribute, return the explicit visibility
206/// associated with it.
207template <class T>
208static Visibility getVisibilityFromAttr(const T *attr) {
switch (attr->getVisibility()) {
case T::Default:
  return DefaultVisibility;
case T::Hidden:
  return HiddenVisibility;
case T::Protected:
  return ProtectedVisibility;
}
llvm_unreachable("bad visibility kind")::llvm::llvm_unreachable_internal("bad visibility kind", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 217);
218}

220/// Return the explicit visibility of the given declaration.
221static Optional<Visibility> getVisibilityOf(const NamedDecl *D,
                                  NamedDecl::ExplicitVisibilityKind kind) {
// If we're ultimately computing the visibility of a type, look for
// a 'type_visibility' attribute before looking for 'visibility'.
if (kind == NamedDecl::VisibilityForType) {
  if (const auto *A = D->getAttr<TypeVisibilityAttr>()) {
    return getVisibilityFromAttr(A);
  }
}

// If this declaration has an explicit visibility attribute, use it.
if (const auto *A = D->getAttr<VisibilityAttr>()) {
  return getVisibilityFromAttr(A);
}

return None;
237}

239LinkageInfo LinkageComputer::getLVForType(const Type &T,
                                        LVComputationKind computation) {
if (computation.IgnoreAllVisibility)
  return LinkageInfo(T.getLinkage(), DefaultVisibility, true);
return getTypeLinkageAndVisibility(&T);
244}

246/// \brief Get the most restrictive linkage for the types in the given
247/// template parameter list.  For visibility purposes, template
248/// parameters are part of the signature of a template.
249LinkageInfo LinkageComputer::getLVForTemplateParameterList(
  const TemplateParameterList *Params, LVComputationKind computation) {
LinkageInfo LV;
for (const NamedDecl *P : *Params) {
  // Template type parameters are the most common and never
  // contribute to visibility, pack or not.
  if (isa<TemplateTypeParmDecl>(P))
    continue;

  // Non-type template parameters can be restricted by the value type, e.g.
  //   template <enum X> class A { ... };
  // We have to be careful here, though, because we can be dealing with
  // dependent types.
  if (const auto *NTTP = dyn_cast<NonTypeTemplateParmDecl>(P)) {
    // Handle the non-pack case first.
    if (!NTTP->isExpandedParameterPack()) {
      if (!NTTP->getType()->isDependentType()) {
        LV.merge(getLVForType(*NTTP->getType(), computation));
      }
      continue;
    }

    // Look at all the types in an expanded pack.
    for (unsigned i = 0, n = NTTP->getNumExpansionTypes(); i != n; ++i) {
      QualType type = NTTP->getExpansionType(i);
      if (!type->isDependentType())
        LV.merge(getTypeLinkageAndVisibility(type));
    }
    continue;
  }

  // Template template parameters can be restricted by their
  // template parameters, recursively.
  const auto *TTP = cast<TemplateTemplateParmDecl>(P);

  // Handle the non-pack case first.
  if (!TTP->isExpandedParameterPack()) {
    LV.merge(getLVForTemplateParameterList(TTP->getTemplateParameters(),
                                           computation));
    continue;
  }

  // Look at all expansions in an expanded pack.
  for (unsigned i = 0, n = TTP->getNumExpansionTemplateParameters();
         i != n; ++i) {
    LV.merge(getLVForTemplateParameterList(
        TTP->getExpansionTemplateParameters(i), computation));
  }
}

return LV;
300}

302static const Decl *getOutermostFuncOrBlockContext(const Decl *D) {
const Decl *Ret = nullptr;
const DeclContext *DC = D->getDeclContext();
while (DC->getDeclKind() != Decl::TranslationUnit) {
  if (isa<FunctionDecl>(DC) || isa<BlockDecl>(DC))
    Ret = cast<Decl>(DC);
  DC = DC->getParent();
}
return Ret;
311}

313/// \brief Get the most restrictive linkage for the types and
314/// declarations in the given template argument list.
315///
316/// Note that we don't take an LVComputationKind because we always
317/// want to honor the visibility of template arguments in the same way.
318LinkageInfo
319LinkageComputer::getLVForTemplateArgumentList(ArrayRef<TemplateArgument> Args,
                                            LVComputationKind computation) {
LinkageInfo LV;

for (const TemplateArgument &Arg : Args) {
  switch (Arg.getKind()) {
  case TemplateArgument::Null:
  case TemplateArgument::Integral:
  case TemplateArgument::Expression:
    continue;

  case TemplateArgument::Type:
    LV.merge(getLVForType(*Arg.getAsType(), computation));
    continue;

  case TemplateArgument::Declaration: {
    const NamedDecl *ND = Arg.getAsDecl();
    assert(!usesTypeVisibility(ND))(static_cast <bool> (!usesTypeVisibility(ND)) ? void (0
) : __assert_fail ("!usesTypeVisibility(ND)", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 336, __extension__ __PRETTY_FUNCTION__));
    LV.merge(getLVForDecl(ND, computation));
    continue;
  }

  case TemplateArgument::NullPtr:
    LV.merge(getTypeLinkageAndVisibility(Arg.getNullPtrType()));
    continue;

  case TemplateArgument::Template:
  case TemplateArgument::TemplateExpansion:
    if (TemplateDecl *Template =
            Arg.getAsTemplateOrTemplatePattern().getAsTemplateDecl())
      LV.merge(getLVForDecl(Template, computation));
    continue;

  case TemplateArgument::Pack:
    LV.merge(getLVForTemplateArgumentList(Arg.getPackAsArray(), computation));
    continue;
  }
  llvm_unreachable("bad template argument kind")::llvm::llvm_unreachable_internal("bad template argument kind"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 356);
}

return LV;
360}

362LinkageInfo
363LinkageComputer::getLVForTemplateArgumentList(const TemplateArgumentList &TArgs,
                                            LVComputationKind computation) {
return getLVForTemplateArgumentList(TArgs.asArray(), computation);
366}

368static bool shouldConsiderTemplateVisibility(const FunctionDecl *fn,
                      const FunctionTemplateSpecializationInfo *specInfo) {
// Include visibility from the template parameters and arguments
// only if this is not an explicit instantiation or specialization
// with direct explicit visibility.  (Implicit instantiations won't
// have a direct attribute.)
if (!specInfo->isExplicitInstantiationOrSpecialization())
  return true;

return !fn->hasAttr<VisibilityAttr>();
378}

380/// Merge in template-related linkage and visibility for the given
381/// function template specialization.
382///
383/// We don't need a computation kind here because we can assume
384/// LVForValue.
385///
386/// \param[out] LV the computation to use for the parent
387void LinkageComputer::mergeTemplateLV(
  LinkageInfo &LV, const FunctionDecl *fn,
  const FunctionTemplateSpecializationInfo *specInfo,
  LVComputationKind computation) {
bool considerVisibility =
  shouldConsiderTemplateVisibility(fn, specInfo);

// Merge information from the template parameters.
FunctionTemplateDecl *temp = specInfo->getTemplate();
LinkageInfo tempLV =
  getLVForTemplateParameterList(temp->getTemplateParameters(), computation);
LV.mergeMaybeWithVisibility(tempLV, considerVisibility);

// Merge information from the template arguments.
const TemplateArgumentList &templateArgs = *specInfo->TemplateArguments;
LinkageInfo argsLV = getLVForTemplateArgumentList(templateArgs, computation);
LV.mergeMaybeWithVisibility(argsLV, considerVisibility);
404}

406/// Does the given declaration have a direct visibility attribute
407/// that would match the given rules?
408static bool hasDirectVisibilityAttribute(const NamedDecl *D,
                                       LVComputationKind computation) {
if (computation.IgnoreAllVisibility)
  return false;

return (computation.isTypeVisibility() && D->hasAttr<TypeVisibilityAttr>()) ||
       D->hasAttr<VisibilityAttr>();
415}

417/// Should we consider visibility associated with the template
418/// arguments and parameters of the given class template specialization?
419static bool shouldConsiderTemplateVisibility(
                               const ClassTemplateSpecializationDecl *spec,
                               LVComputationKind computation) {
// Include visibility from the template parameters and arguments
// only if this is not an explicit instantiation or specialization
// with direct explicit visibility (and note that implicit
// instantiations won't have a direct attribute).
//
// Furthermore, we want to ignore template parameters and arguments
// for an explicit specialization when computing the visibility of a
// member thereof with explicit visibility.
//
// This is a bit complex; let's unpack it.
//
// An explicit class specialization is an independent, top-level
// declaration.  As such, if it or any of its members has an
// explicit visibility attribute, that must directly express the
// user's intent, and we should honor it.  The same logic applies to
// an explicit instantiation of a member of such a thing.

// Fast path: if this is not an explicit instantiation or
// specialization, we always want to consider template-related
// visibility restrictions.
if (!spec->isExplicitInstantiationOrSpecialization())
  return true;

// This is the 'member thereof' check.
if (spec->isExplicitSpecialization() &&
    hasExplicitVisibilityAlready(computation))
  return false;

return !hasDirectVisibilityAttribute(spec, computation);
451}

453/// Merge in template-related linkage and visibility for the given
454/// class template specialization.
455void LinkageComputer::mergeTemplateLV(
  LinkageInfo &LV, const ClassTemplateSpecializationDecl *spec,
  LVComputationKind computation) {
bool considerVisibility = shouldConsiderTemplateVisibility(spec, computation);

// Merge information from the template parameters, but ignore
// visibility if we're only considering template arguments.

ClassTemplateDecl *temp = spec->getSpecializedTemplate();
LinkageInfo tempLV =
  getLVForTemplateParameterList(temp->getTemplateParameters(), computation);
LV.mergeMaybeWithVisibility(tempLV,
         considerVisibility && !hasExplicitVisibilityAlready(computation));

// Merge information from the template arguments.  We ignore
// template-argument visibility if we've got an explicit
// instantiation with a visibility attribute.
const TemplateArgumentList &templateArgs = spec->getTemplateArgs();
LinkageInfo argsLV = getLVForTemplateArgumentList(templateArgs, computation);
if (considerVisibility)
  LV.mergeVisibility(argsLV);
LV.mergeExternalVisibility(argsLV);
477}

479/// Should we consider visibility associated with the template
480/// arguments and parameters of the given variable template
481/// specialization? As usual, follow class template specialization
482/// logic up to initialization.
483static bool shouldConsiderTemplateVisibility(
                               const VarTemplateSpecializationDecl *spec,
                               LVComputationKind computation) {
// Include visibility from the template parameters and arguments
// only if this is not an explicit instantiation or specialization
// with direct explicit visibility (and note that implicit
// instantiations won't have a direct attribute).
if (!spec->isExplicitInstantiationOrSpecialization())
  return true;

// An explicit variable specialization is an independent, top-level
// declaration.  As such, if it has an explicit visibility attribute,
// that must directly express the user's intent, and we should honor
// it.
if (spec->isExplicitSpecialization() &&
    hasExplicitVisibilityAlready(computation))
  return false;

return !hasDirectVisibilityAttribute(spec, computation);
502}

504/// Merge in template-related linkage and visibility for the given
505/// variable template specialization. As usual, follow class template
506/// specialization logic up to initialization.
507void LinkageComputer::mergeTemplateLV(LinkageInfo &LV,
                                    const VarTemplateSpecializationDecl *spec,
                                    LVComputationKind computation) {
bool considerVisibility = shouldConsiderTemplateVisibility(spec, computation);

// Merge information from the template parameters, but ignore
// visibility if we're only considering template arguments.

VarTemplateDecl *temp = spec->getSpecializedTemplate();
LinkageInfo tempLV =
  getLVForTemplateParameterList(temp->getTemplateParameters(), computation);
LV.mergeMaybeWithVisibility(tempLV,
         considerVisibility && !hasExplicitVisibilityAlready(computation));

// Merge information from the template arguments.  We ignore
// template-argument visibility if we've got an explicit
// instantiation with a visibility attribute.
const TemplateArgumentList &templateArgs = spec->getTemplateArgs();
LinkageInfo argsLV = getLVForTemplateArgumentList(templateArgs, computation);
if (considerVisibility)
  LV.mergeVisibility(argsLV);
LV.mergeExternalVisibility(argsLV);
529}

531static bool useInlineVisibilityHidden(const NamedDecl *D) {
// FIXME: we should warn if -fvisibility-inlines-hidden is used with c.
const LangOptions &Opts = D->getASTContext().getLangOpts();
if (!Opts.CPlusPlus || !Opts.InlineVisibilityHidden)
  return false;

const auto *FD = dyn_cast<FunctionDecl>(D);
if (!FD)
  return false;

TemplateSpecializationKind TSK = TSK_Undeclared;
if (FunctionTemplateSpecializationInfo *spec
    = FD->getTemplateSpecializationInfo()) {
  TSK = spec->getTemplateSpecializationKind();
} else if (MemberSpecializationInfo *MSI =
           FD->getMemberSpecializationInfo()) {
  TSK = MSI->getTemplateSpecializationKind();
}

const FunctionDecl *Def = nullptr;
// InlineVisibilityHidden only applies to definitions, and
// isInlined() only gives meaningful answers on definitions
// anyway.
return TSK != TSK_ExplicitInstantiationDeclaration &&
  TSK != TSK_ExplicitInstantiationDefinition &&
  FD->hasBody(Def) && Def->isInlined() && !Def->hasAttr<GNUInlineAttr>();
557}

559template <typename T> static bool isFirstInExternCContext(T *D) {
const T *First = D->getFirstDecl();
return First->isInExternCContext();
562}

564static bool isSingleLineLanguageLinkage(const Decl &D) {
if (const auto *SD = dyn_cast<LinkageSpecDecl>(D.getDeclContext()))
  if (!SD->hasBraces())
    return true;
return false;
569}

571static bool isExportedFromModuleIntefaceUnit(const NamedDecl *D) {
// FIXME: Handle isModulePrivate.
switch (D->getModuleOwnershipKind()) {
case Decl::ModuleOwnershipKind::Unowned:
case Decl::ModuleOwnershipKind::ModulePrivate:
  return false;
case Decl::ModuleOwnershipKind::Visible:
case Decl::ModuleOwnershipKind::VisibleWhenImported:
  if (auto *M = D->getOwningModule())
    return M->Kind == Module::ModuleInterfaceUnit;
}
llvm_unreachable("unexpected module ownership kind")::llvm::llvm_unreachable_internal("unexpected module ownership kind"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 582);
583}

585static LinkageInfo getInternalLinkageFor(const NamedDecl *D) {
// Internal linkage declarations within a module interface unit are modeled
// as "module-internal linkage", which means that they have internal linkage
// formally but can be indirectly accessed from outside the module via inline
// functions and templates defined within the module.
if (auto *M = D->getOwningModule())
  if (M->Kind == Module::ModuleInterfaceUnit)
    return LinkageInfo(ModuleInternalLinkage, DefaultVisibility, false);

return LinkageInfo::internal();
595}

597static LinkageInfo getExternalLinkageFor(const NamedDecl *D) {
// C++ Modules TS [basic.link]/6.8:
//   - A name declared at namespace scope that does not have internal linkage
//     by the previous rules and that is introduced by a non-exported
//     declaration has module linkage.
if (auto *M = D->getOwningModule())
  if (M->Kind == Module::ModuleInterfaceUnit)
    if (!isExportedFromModuleIntefaceUnit(
            cast<NamedDecl>(D->getCanonicalDecl())))
      return LinkageInfo(ModuleLinkage, DefaultVisibility, false);

return LinkageInfo::external();
609}

611LinkageInfo
612LinkageComputer::getLVForNamespaceScopeDecl(const NamedDecl *D,
                                          LVComputationKind computation,
                                          bool IgnoreVarTypeLinkage) {
assert(D->getDeclContext()->getRedeclContext()->isFileContext() &&(static_cast <bool> (D->getDeclContext()->getRedeclContext
()->isFileContext() && "Not a name having namespace scope"
) ? void (0) : __assert_fail ("D->getDeclContext()->getRedeclContext()->isFileContext() && \"Not a name having namespace scope\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 616, __extension__ __PRETTY_FUNCTION__))
       "Not a name having namespace scope")(static_cast <bool> (D->getDeclContext()->getRedeclContext
()->isFileContext() && "Not a name having namespace scope"
) ? void (0) : __assert_fail ("D->getDeclContext()->getRedeclContext()->isFileContext() && \"Not a name having namespace scope\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 616, __extension__ __PRETTY_FUNCTION__));
ASTContext &Context = D->getASTContext();

// C++ [basic.link]p3:
//   A name having namespace scope (3.3.6) has internal linkage if it
//   is the name of
//     - an object, reference, function or function template that is
//       explicitly declared static; or,
// (This bullet corresponds to C99 6.2.2p3.)
if (const auto *Var = dyn_cast<VarDecl>(D)) {
  // Explicitly declared static.
  if (Var->getStorageClass() == SC_Static)
    return getInternalLinkageFor(Var);

  // - a non-inline, non-volatile object or reference that is explicitly
  //   declared const or constexpr and neither explicitly declared extern
  //   nor previously declared to have external linkage; or (there is no
  //   equivalent in C99)
  // The C++ modules TS adds "non-exported" to this list.
  if (Context.getLangOpts().CPlusPlus &&
      Var->getType().isConstQualified() && 
      !Var->getType().isVolatileQualified() &&
      !Var->isInline() &&
      !isExportedFromModuleIntefaceUnit(Var)) {
    const VarDecl *PrevVar = Var->getPreviousDecl();
    if (PrevVar)
      return getLVForDecl(PrevVar, computation);

    if (Var->getStorageClass() != SC_Extern &&
        Var->getStorageClass() != SC_PrivateExtern &&
        !isSingleLineLanguageLinkage(*Var))
      return getInternalLinkageFor(Var);
  }

  for (const VarDecl *PrevVar = Var->getPreviousDecl(); PrevVar;
       PrevVar = PrevVar->getPreviousDecl()) {
    if (PrevVar->getStorageClass() == SC_PrivateExtern &&
        Var->getStorageClass() == SC_None)
      return getDeclLinkageAndVisibility(PrevVar);
    // Explicitly declared static.
    if (PrevVar->getStorageClass() == SC_Static)
      return getInternalLinkageFor(Var);
  }
} else if (const FunctionDecl *Function = D->getAsFunction()) {
  // C++ [temp]p4:
  //   A non-member function template can have internal linkage; any
  //   other template name shall have external linkage.

  // Explicitly declared static.
  if (Function->getCanonicalDecl()->getStorageClass() == SC_Static)
    return getInternalLinkageFor(Function);
} else if (const auto *IFD = dyn_cast<IndirectFieldDecl>(D)) {
  //   - a data member of an anonymous union.
  const VarDecl *VD = IFD->getVarDecl();
  assert(VD && "Expected a VarDecl in this IndirectFieldDecl!")(static_cast <bool> (VD && "Expected a VarDecl in this IndirectFieldDecl!"
) ? void (0) : __assert_fail ("VD && \"Expected a VarDecl in this IndirectFieldDecl!\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 670, __extension__ __PRETTY_FUNCTION__));
  return getLVForNamespaceScopeDecl(VD, computation, IgnoreVarTypeLinkage);
}
assert(!isa<FieldDecl>(D) && "Didn't expect a FieldDecl!")(static_cast <bool> (!isa<FieldDecl>(D) &&
 "Didn't expect a FieldDecl!") ? void (0) : __assert_fail ("!isa<FieldDecl>(D) && \"Didn't expect a FieldDecl!\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 673, __extension__ __PRETTY_FUNCTION__));

if (D->isInAnonymousNamespace()) {
  const auto *Var = dyn_cast<VarDecl>(D);
  const auto *Func = dyn_cast<FunctionDecl>(D);
  // FIXME: The check for extern "C" here is not justified by the standard
  // wording, but we retain it from the pre-DR1113 model to avoid breaking
  // code.
  //
  // C++11 [basic.link]p4:
  //   An unnamed namespace or a namespace declared directly or indirectly
  //   within an unnamed namespace has internal linkage.
  if ((!Var || !isFirstInExternCContext(Var)) &&
      (!Func || !isFirstInExternCContext(Func)))
    return getInternalLinkageFor(D);
}

// Set up the defaults.

// C99 6.2.2p5:
//   If the declaration of an identifier for an object has file
//   scope and no storage-class specifier, its linkage is
//   external.
LinkageInfo LV = getExternalLinkageFor(D);

if (!hasExplicitVisibilityAlready(computation)) {
  if (Optional<Visibility> Vis = getExplicitVisibility(D, computation)) {
    LV.mergeVisibility(*Vis, true);
  } else {
    // If we're declared in a namespace with a visibility attribute,
    // use that namespace's visibility, and it still counts as explicit.
    for (const DeclContext *DC = D->getDeclContext();
         !isa<TranslationUnitDecl>(DC);
         DC = DC->getParent()) {
      const auto *ND = dyn_cast<NamespaceDecl>(DC);
      if (!ND) continue;
      if (Optional<Visibility> Vis = getExplicitVisibility(ND, computation)) {
        LV.mergeVisibility(*Vis, true);
        break;
      }
    }
  }

  // Add in global settings if the above didn't give us direct visibility.
  if (!LV.isVisibilityExplicit()) {
    // Use global type/value visibility as appropriate.
    Visibility globalVisibility =
        computation.isValueVisibility()
            ? Context.getLangOpts().getValueVisibilityMode()
            : Context.getLangOpts().getTypeVisibilityMode();
    LV.mergeVisibility(globalVisibility, /*explicit*/ false);

    // If we're paying attention to global visibility, apply
    // -finline-visibility-hidden if this is an inline method.
    if (useInlineVisibilityHidden(D))
      LV.mergeVisibility(HiddenVisibility, true);
  }
}

// C++ [basic.link]p4:

//   A name having namespace scope has external linkage if it is the
//   name of
//
//     - an object or reference, unless it has internal linkage; or
if (const auto *Var = dyn_cast<VarDecl>(D)) {
  // GCC applies the following optimization to variables and static
  // data members, but not to functions:
  //
  // Modify the variable's LV by the LV of its type unless this is
  // C or extern "C".  This follows from [basic.link]p9:
  //   A type without linkage shall not be used as the type of a
  //   variable or function with external linkage unless
  //    - the entity has C language linkage, or
  //    - the entity is declared within an unnamed namespace, or
  //    - the entity is not used or is defined in the same
  //      translation unit.
  // and [basic.link]p10:
  //   ...the types specified by all declarations referring to a
  //   given variable or function shall be identical...
  // C does not have an equivalent rule.
  //
  // Ignore this if we've got an explicit attribute;  the user
  // probably knows what they're doing.
  //
  // Note that we don't want to make the variable non-external
  // because of this, but unique-external linkage suits us.
  if (Context.getLangOpts().CPlusPlus && !isFirstInExternCContext(Var) &&
      !IgnoreVarTypeLinkage) {
    LinkageInfo TypeLV = getLVForType(*Var->getType(), computation);
    if (!isExternallyVisible(TypeLV.getLinkage()))
      return LinkageInfo::uniqueExternal();
    if (!LV.isVisibilityExplicit())
      LV.mergeVisibility(TypeLV);
  }

  if (Var->getStorageClass() == SC_PrivateExtern)
    LV.mergeVisibility(HiddenVisibility, true);

  // Note that Sema::MergeVarDecl already takes care of implementing
  // C99 6.2.2p4 and propagating the visibility attribute, so we don't have
  // to do it here.

  // As per function and class template specializations (below),
  // consider LV for the template and template arguments.  We're at file
  // scope, so we do not need to worry about nested specializations.
  if (const auto *spec = dyn_cast<VarTemplateSpecializationDecl>(Var)) {
    mergeTemplateLV(LV, spec, computation);
  }

//     - a function, unless it has internal linkage; or
} else if (const auto *Function = dyn_cast<FunctionDecl>(D)) {
  // In theory, we can modify the function's LV by the LV of its
  // type unless it has C linkage (see comment above about variables
  // for justification).  In practice, GCC doesn't do this, so it's
  // just too painful to make work.

  if (Function->getStorageClass() == SC_PrivateExtern)
    LV.mergeVisibility(HiddenVisibility, true);

  // Note that Sema::MergeCompatibleFunctionDecls already takes care of
  // merging storage classes and visibility attributes, so we don't have to
  // look at previous decls in here.

  // In C++, then if the type of the function uses a type with
  // unique-external linkage, it's not legally usable from outside
  // this translation unit.  However, we should use the C linkage
  // rules instead for extern "C" declarations.
  if (Context.getLangOpts().CPlusPlus && !isFirstInExternCContext(Function)) {
    // Only look at the type-as-written. Otherwise, deducing the return type
    // of a function could change its linkage.
    QualType TypeAsWritten = Function->getType();
    if (TypeSourceInfo *TSI = Function->getTypeSourceInfo())
      TypeAsWritten = TSI->getType();
    if (!isExternallyVisible(TypeAsWritten->getLinkage()))
      return LinkageInfo::uniqueExternal();
  }

  // Consider LV from the template and the template arguments.
  // We're at file scope, so we do not need to worry about nested
  // specializations.
  if (FunctionTemplateSpecializationInfo *specInfo
                             = Function->getTemplateSpecializationInfo()) {
    mergeTemplateLV(LV, Function, specInfo, computation);
  }

//     - a named class (Clause 9), or an unnamed class defined in a
//       typedef declaration in which the class has the typedef name
//       for linkage purposes (7.1.3); or
//     - a named enumeration (7.2), or an unnamed enumeration
//       defined in a typedef declaration in which the enumeration
//       has the typedef name for linkage purposes (7.1.3); or
} else if (const auto *Tag = dyn_cast<TagDecl>(D)) {
  // Unnamed tags have no linkage.
  if (!Tag->hasNameForLinkage())
    return LinkageInfo::none();

  // If this is a class template specialization, consider the
  // linkage of the template and template arguments.  We're at file
  // scope, so we do not need to worry about nested specializations.
  if (const auto *spec = dyn_cast<ClassTemplateSpecializationDecl>(Tag)) {
    mergeTemplateLV(LV, spec, computation);
  }

//     - an enumerator belonging to an enumeration with external linkage;
} else if (isa<EnumConstantDecl>(D)) {
  LinkageInfo EnumLV = getLVForDecl(cast<NamedDecl>(D->getDeclContext()),
                                    computation);
  if (!isExternalFormalLinkage(EnumLV.getLinkage()))
    return LinkageInfo::none();
  LV.merge(EnumLV);

//     - a template, unless it is a function template that has
//       internal linkage (Clause 14);
} else if (const auto *temp = dyn_cast<TemplateDecl>(D)) {
  bool considerVisibility = !hasExplicitVisibilityAlready(computation);
  LinkageInfo tempLV =
    getLVForTemplateParameterList(temp->getTemplateParameters(), computation);
  LV.mergeMaybeWithVisibility(tempLV, considerVisibility);

//     - a namespace (7.3), unless it is declared within an unnamed
//       namespace.
//
// We handled names in anonymous namespaces above.
} else if (isa<NamespaceDecl>(D)) {
  return LV;

// By extension, we assign external linkage to Objective-C
// interfaces.
} else if (isa<ObjCInterfaceDecl>(D)) {
  // fallout

} else if (auto *TD = dyn_cast<TypedefNameDecl>(D)) {
  // A typedef declaration has linkage if it gives a type a name for
  // linkage purposes.
  if (!TD->getAnonDeclWithTypedefName(/*AnyRedecl*/true))
    return LinkageInfo::none();

// Everything not covered here has no linkage.
} else {
  return LinkageInfo::none();
}

// If we ended up with non-externally-visible linkage, visibility should
// always be default.
if (!isExternallyVisible(LV.getLinkage()))
  return LinkageInfo(LV.getLinkage(), DefaultVisibility, false);

return LV;
882}

884LinkageInfo
885LinkageComputer::getLVForClassMember(const NamedDecl *D,
                                   LVComputationKind computation,
                                   bool IgnoreVarTypeLinkage) {
// Only certain class members have linkage.  Note that fields don't
// really have linkage, but it's convenient to say they do for the
// purposes of calculating linkage of pointer-to-data-member
// template arguments.
//
// Templates also don't officially have linkage, but since we ignore
// the C++ standard and look at template arguments when determining
// linkage and visibility of a template specialization, we might hit
// a template template argument that way. If we do, we need to
// consider its linkage.
if (!(isa<CXXMethodDecl>(D) ||
      isa<VarDecl>(D) ||
      isa<FieldDecl>(D) ||
      isa<IndirectFieldDecl>(D) ||
      isa<TagDecl>(D) ||
      isa<TemplateDecl>(D)))
  return LinkageInfo::none();

LinkageInfo LV;

// If we have an explicit visibility attribute, merge that in.
if (!hasExplicitVisibilityAlready(computation)) {
  if (Optional<Visibility> Vis = getExplicitVisibility(D, computation))
    LV.mergeVisibility(*Vis, true);
  // If we're paying attention to global visibility, apply
  // -finline-visibility-hidden if this is an inline method.
  //
  // Note that we do this before merging information about
  // the class visibility.
  if (!LV.isVisibilityExplicit() && useInlineVisibilityHidden(D))
    LV.mergeVisibility(HiddenVisibility, true);
}

// If this class member has an explicit visibility attribute, the only
// thing that can change its visibility is the template arguments, so
// only look for them when processing the class.
LVComputationKind classComputation = computation;
if (LV.isVisibilityExplicit())
  classComputation = withExplicitVisibilityAlready(computation);

LinkageInfo classLV =
  getLVForDecl(cast<RecordDecl>(D->getDeclContext()), classComputation);
// The member has the same linkage as the class. If that's not externally
// visible, we don't need to compute anything about the linkage.
// FIXME: If we're only computing linkage, can we bail out here?
if (!isExternallyVisible(classLV.getLinkage()))
  return classLV;


// Otherwise, don't merge in classLV yet, because in certain cases
// we need to completely ignore the visibility from it.

// Specifically, if this decl exists and has an explicit attribute.
const NamedDecl *explicitSpecSuppressor = nullptr;

if (const auto *MD = dyn_cast<CXXMethodDecl>(D)) {
  // Only look at the type-as-written. Otherwise, deducing the return type
  // of a function could change its linkage.
  QualType TypeAsWritten = MD->getType();
  if (TypeSourceInfo *TSI = MD->getTypeSourceInfo())
    TypeAsWritten = TSI->getType();
  if (!isExternallyVisible(TypeAsWritten->getLinkage()))
    return LinkageInfo::uniqueExternal();

  // If this is a method template specialization, use the linkage for
  // the template parameters and arguments.
  if (FunctionTemplateSpecializationInfo *spec
         = MD->getTemplateSpecializationInfo()) {
    mergeTemplateLV(LV, MD, spec, computation);
    if (spec->isExplicitSpecialization()) {
      explicitSpecSuppressor = MD;
    } else if (isExplicitMemberSpecialization(spec->getTemplate())) {
      explicitSpecSuppressor = spec->getTemplate()->getTemplatedDecl();
    }
  } else if (isExplicitMemberSpecialization(MD)) {
    explicitSpecSuppressor = MD;
  }

} else if (const auto *RD = dyn_cast<CXXRecordDecl>(D)) {
  if (const auto *spec = dyn_cast<ClassTemplateSpecializationDecl>(RD)) {
    mergeTemplateLV(LV, spec, computation);
    if (spec->isExplicitSpecialization()) {
      explicitSpecSuppressor = spec;
    } else {
      const ClassTemplateDecl *temp = spec->getSpecializedTemplate();
      if (isExplicitMemberSpecialization(temp)) {
        explicitSpecSuppressor = temp->getTemplatedDecl();
      }
    }
  } else if (isExplicitMemberSpecialization(RD)) {
    explicitSpecSuppressor = RD;
  }

// Static data members.
} else if (const auto *VD = dyn_cast<VarDecl>(D)) {
  if (const auto *spec = dyn_cast<VarTemplateSpecializationDecl>(VD))
    mergeTemplateLV(LV, spec, computation);

  // Modify the variable's linkage by its type, but ignore the
  // type's visibility unless it's a definition.
  if (!IgnoreVarTypeLinkage) {
    LinkageInfo typeLV = getLVForType(*VD->getType(), computation);
    // FIXME: If the type's linkage is not externally visible, we can
    // give this static data member UniqueExternalLinkage.
    if (!LV.isVisibilityExplicit() && !classLV.isVisibilityExplicit())
      LV.mergeVisibility(typeLV);
    LV.mergeExternalVisibility(typeLV);
  }

  if (isExplicitMemberSpecialization(VD)) {
    explicitSpecSuppressor = VD;
  }

// Template members.
} else if (const auto *temp = dyn_cast<TemplateDecl>(D)) {
  bool considerVisibility =
    (!LV.isVisibilityExplicit() &&
     !classLV.isVisibilityExplicit() &&
     !hasExplicitVisibilityAlready(computation));
  LinkageInfo tempLV =
    getLVForTemplateParameterList(temp->getTemplateParameters(), computation);
  LV.mergeMaybeWithVisibility(tempLV, considerVisibility);

  if (const auto *redeclTemp = dyn_cast<RedeclarableTemplateDecl>(temp)) {
    if (isExplicitMemberSpecialization(redeclTemp)) {
      explicitSpecSuppressor = temp->getTemplatedDecl();
    }
  }
}

// We should never be looking for an attribute directly on a template.
assert(!explicitSpecSuppressor || !isa<TemplateDecl>(explicitSpecSuppressor))(static_cast <bool> (!explicitSpecSuppressor || !isa<
TemplateDecl>(explicitSpecSuppressor)) ? void (0) : __assert_fail
 ("!explicitSpecSuppressor || !isa<TemplateDecl>(explicitSpecSuppressor)"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 1019, __extension__ __PRETTY_FUNCTION__));

// If this member is an explicit member specialization, and it has
// an explicit attribute, ignore visibility from the parent.
bool considerClassVisibility = true;
if (explicitSpecSuppressor &&
    // optimization: hasDVA() is true only with explicit visibility.
    LV.isVisibilityExplicit() &&
    classLV.getVisibility() != DefaultVisibility &&
    hasDirectVisibilityAttribute(explicitSpecSuppressor, computation)) {
  considerClassVisibility = false;
}

// Finally, merge in information from the class.
LV.mergeMaybeWithVisibility(classLV, considerClassVisibility);
return LV;
1035}

1037void NamedDecl::anchor() {}

1039bool NamedDecl::isLinkageValid() const {
if (!hasCachedLinkage())
  return true;

Linkage L = LinkageComputer{}
                .computeLVForDecl(this, LVComputationKind::forLinkageOnly())
                .getLinkage();
return L == getCachedLinkage();
1047}

1049ObjCStringFormatFamily NamedDecl::getObjCFStringFormattingFamily() const {
StringRef name = getName();
if (name.empty()) return SFF_None;

if (name.front() == 'C')
  if (name == "CFStringCreateWithFormat" ||
      name == "CFStringCreateWithFormatAndArguments" ||
      name == "CFStringAppendFormat" ||
      name == "CFStringAppendFormatAndArguments")
    return SFF_CFString;
return SFF_None;
1060}

1062Linkage NamedDecl::getLinkageInternal() const {
// We don't care about visibility here, so ask for the cheapest
// possible visibility analysis.
return LinkageComputer{}
    .getLVForDecl(this, LVComputationKind::forLinkageOnly())
    .getLinkage();
1068}

1070LinkageInfo NamedDecl::getLinkageAndVisibility() const {
return LinkageComputer{}.getDeclLinkageAndVisibility(this);
1072}

1074static Optional<Visibility>
1075getExplicitVisibilityAux(const NamedDecl *ND,
                       NamedDecl::ExplicitVisibilityKind kind,
                       bool IsMostRecent) {
assert(!IsMostRecent || ND == ND->getMostRecentDecl())(static_cast <bool> (!IsMostRecent || ND == ND->getMostRecentDecl
()) ? void (0) : __assert_fail ("!IsMostRecent || ND == ND->getMostRecentDecl()"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 1078, __extension__ __PRETTY_FUNCTION__));

// Check the declaration itself first.
if (Optional<Visibility> V = getVisibilityOf(ND, kind))
  return V;

// If this is a member class of a specialization of a class template
// and the corresponding decl has explicit visibility, use that.
if (const auto *RD = dyn_cast<CXXRecordDecl>(ND)) {
  CXXRecordDecl *InstantiatedFrom = RD->getInstantiatedFromMemberClass();
  if (InstantiatedFrom)
    return getVisibilityOf(InstantiatedFrom, kind);
}

// If there wasn't explicit visibility there, and this is a
// specialization of a class template, check for visibility
// on the pattern.
if (const auto *spec = dyn_cast<ClassTemplateSpecializationDecl>(ND))
  return getVisibilityOf(spec->getSpecializedTemplate()->getTemplatedDecl(),
                         kind);

// Use the most recent declaration.
if (!IsMostRecent && !isa<NamespaceDecl>(ND)) {
  const NamedDecl *MostRecent = ND->getMostRecentDecl();
  if (MostRecent != ND)
    return getExplicitVisibilityAux(MostRecent, kind, true);
}

if (const auto *Var = dyn_cast<VarDecl>(ND)) {
  if (Var->isStaticDataMember()) {
    VarDecl *InstantiatedFrom = Var->getInstantiatedFromStaticDataMember();
    if (InstantiatedFrom)
      return getVisibilityOf(InstantiatedFrom, kind);
  }

  if (const auto *VTSD = dyn_cast<VarTemplateSpecializationDecl>(Var))
    return getVisibilityOf(VTSD->getSpecializedTemplate()->getTemplatedDecl(),
                           kind);

  return None;
}
// Also handle function template specializations.
if (const auto *fn = dyn_cast<FunctionDecl>(ND)) {
  // If the function is a specialization of a template with an
  // explicit visibility attribute, use that.
  if (FunctionTemplateSpecializationInfo *templateInfo
        = fn->getTemplateSpecializationInfo())
    return getVisibilityOf(templateInfo->getTemplate()->getTemplatedDecl(),
                           kind);

  // If the function is a member of a specialization of a class template
  // and the corresponding decl has explicit visibility, use that.
  FunctionDecl *InstantiatedFrom = fn->getInstantiatedFromMemberFunction();
  if (InstantiatedFrom)
    return getVisibilityOf(InstantiatedFrom, kind);

  return None;
}

// The visibility of a template is stored in the templated decl.
if (const auto *TD = dyn_cast<TemplateDecl>(ND))
  return getVisibilityOf(TD->getTemplatedDecl(), kind);

return None;
1142}

1144Optional<Visibility>
1145NamedDecl::getExplicitVisibility(ExplicitVisibilityKind kind) const {
return getExplicitVisibilityAux(this, kind, false);
1147}

1149LinkageInfo LinkageComputer::getLVForClosure(const DeclContext *DC,
                                           Decl *ContextDecl,
                                           LVComputationKind computation) {
// This lambda has its linkage/visibility determined by its owner.
const NamedDecl *Owner;
if (!ContextDecl)
  Owner = dyn_cast<NamedDecl>(DC);
else if (isa<ParmVarDecl>(ContextDecl))
  Owner =
      dyn_cast<NamedDecl>(ContextDecl->getDeclContext()->getRedeclContext());
else
  Owner = cast<NamedDecl>(ContextDecl);

if (!Owner)
  return LinkageInfo::none();

// If the owner has a deduced type, we need to skip querying the linkage and
// visibility of that type, because it might involve this closure type.  The
// only effect of this is that we might give a lambda VisibleNoLinkage rather
// than NoLinkage when we don't strictly need to, which is benign.
auto *VD = dyn_cast<VarDecl>(Owner);
LinkageInfo OwnerLV =
    VD && VD->getType()->getContainedDeducedType()
        ? computeLVForDecl(Owner, computation, /*IgnoreVarTypeLinkage*/true)
        : getLVForDecl(Owner, computation);

// A lambda never formally has linkage. But if the owner is externally
// visible, then the lambda is too. We apply the same rules to blocks.
if (!isExternallyVisible(OwnerLV.getLinkage()))
  return LinkageInfo::none();
return LinkageInfo(VisibleNoLinkage, OwnerLV.getVisibility(),
                   OwnerLV.isVisibilityExplicit());
1181}

1183LinkageInfo LinkageComputer::getLVForLocalDecl(const NamedDecl *D,
                                             LVComputationKind computation) {
if (const auto *Function = dyn_cast<FunctionDecl>(D)) {
  if (Function->isInAnonymousNamespace() &&
      !isFirstInExternCContext(Function))
    return getInternalLinkageFor(Function);

  // This is a "void f();" which got merged with a file static.
  if (Function->getCanonicalDecl()->getStorageClass() == SC_Static)
    return getInternalLinkageFor(Function);

  LinkageInfo LV;
  if (!hasExplicitVisibilityAlready(computation)) {
    if (Optional<Visibility> Vis =
            getExplicitVisibility(Function, computation))
      LV.mergeVisibility(*Vis, true);
  }

  // Note that Sema::MergeCompatibleFunctionDecls already takes care of
  // merging storage classes and visibility attributes, so we don't have to
  // look at previous decls in here.

  return LV;
}

if (const auto *Var = dyn_cast<VarDecl>(D)) {
  if (Var->hasExternalStorage()) {
    if (Var->isInAnonymousNamespace() && !isFirstInExternCContext(Var))
      return getInternalLinkageFor(Var);

    LinkageInfo LV;
    if (Var->getStorageClass() == SC_PrivateExtern)
      LV.mergeVisibility(HiddenVisibility, true);
    else if (!hasExplicitVisibilityAlready(computation)) {
      if (Optional<Visibility> Vis = getExplicitVisibility(Var, computation))
        LV.mergeVisibility(*Vis, true);
    }

    if (const VarDecl *Prev = Var->getPreviousDecl()) {
      LinkageInfo PrevLV = getLVForDecl(Prev, computation);
      if (PrevLV.getLinkage())
        LV.setLinkage(PrevLV.getLinkage());
      LV.mergeVisibility(PrevLV);
    }

    return LV;
  }

  if (!Var->isStaticLocal())
    return LinkageInfo::none();
}

ASTContext &Context = D->getASTContext();
if (!Context.getLangOpts().CPlusPlus)
  return LinkageInfo::none();

const Decl *OuterD = getOutermostFuncOrBlockContext(D);
if (!OuterD || OuterD->isInvalidDecl())
  return LinkageInfo::none();

LinkageInfo LV;
if (const auto *BD = dyn_cast<BlockDecl>(OuterD)) {
  if (!BD->getBlockManglingNumber())
    return LinkageInfo::none();

  LV = getLVForClosure(BD->getDeclContext()->getRedeclContext(),
                       BD->getBlockManglingContextDecl(), computation);
} else {
  const auto *FD = cast<FunctionDecl>(OuterD);
  if (!FD->isInlined() &&
      !isTemplateInstantiation(FD->getTemplateSpecializationKind()))
    return LinkageInfo::none();

  LV = getLVForDecl(FD, computation);
}
if (!isExternallyVisible(LV.getLinkage()))
  return LinkageInfo::none();
return LinkageInfo(VisibleNoLinkage, LV.getVisibility(),
                   LV.isVisibilityExplicit());
1262}

1264static inline const CXXRecordDecl*
1265getOutermostEnclosingLambda(const CXXRecordDecl *Record) {
const CXXRecordDecl *Ret = Record;
while (Record && Record->isLambda()) {
  Ret = Record;
  if (!Record->getParent()) break;
  // Get the Containing Class of this Lambda Class
  Record = dyn_cast_or_null<CXXRecordDecl>(
    Record->getParent()->getParent());
}
return Ret;
1275}

1277LinkageInfo LinkageComputer::computeLVForDecl(const NamedDecl *D,
                                            LVComputationKind computation,
                                            bool IgnoreVarTypeLinkage) {
// Internal_linkage attribute overrides other considerations.
if (D->hasAttr<InternalLinkageAttr>())
  return getInternalLinkageFor(D);

// Objective-C: treat all Objective-C declarations as having external
// linkage.
switch (D->getKind()) {
  default:
    break;

  // Per C++ [basic.link]p2, only the names of objects, references,
  // functions, types, templates, namespaces, and values ever have linkage.
  //
  // Note that the name of a typedef, namespace alias, using declaration,
  // and so on are not the name of the corresponding type, namespace, or
  // declaration, so they do *not* have linkage.
  case Decl::ImplicitParam:
  case Decl::Label:
  case Decl::NamespaceAlias:
  case Decl::ParmVar:
  case Decl::Using:
  case Decl::UsingShadow:
  case Decl::UsingDirective:
    return LinkageInfo::none();

  case Decl::EnumConstant:
    // C++ [basic.link]p4: an enumerator has the linkage of its enumeration.
    if (D->getASTContext().getLangOpts().CPlusPlus)
      return getLVForDecl(cast<EnumDecl>(D->getDeclContext()), computation);
    return LinkageInfo::visible_none();

  case Decl::Typedef:
  case Decl::TypeAlias:
    // A typedef declaration has linkage if it gives a type a name for
    // linkage purposes.
    if (!cast<TypedefNameDecl>(D)
             ->getAnonDeclWithTypedefName(/*AnyRedecl*/true))
      return LinkageInfo::none();
    break;

  case Decl::TemplateTemplateParm: // count these as external
  case Decl::NonTypeTemplateParm:
  case Decl::ObjCAtDefsField:
  case Decl::ObjCCategory:
  case Decl::ObjCCategoryImpl:
  case Decl::ObjCCompatibleAlias:
  case Decl::ObjCImplementation:
  case Decl::ObjCMethod:
  case Decl::ObjCProperty:
  case Decl::ObjCPropertyImpl:
  case Decl::ObjCProtocol:
    return getExternalLinkageFor(D);
    
  case Decl::CXXRecord: {
    const auto *Record = cast<CXXRecordDecl>(D);
    if (Record->isLambda()) {
      if (!Record->getLambdaManglingNumber()) {
        // This lambda has no mangling number, so it's internal.
        return getInternalLinkageFor(D);
      }

      // This lambda has its linkage/visibility determined:
      //  - either by the outermost lambda if that lambda has no mangling 
      //    number. 
      //  - or by the parent of the outer most lambda
      // This prevents infinite recursion in settings such as nested lambdas 
      // used in NSDMI's, for e.g. 
      //  struct L {
      //    int t{};
      //    int t2 = ([](int a) { return [](int b) { return b; };})(t)(t);    
      //  };
      const CXXRecordDecl *OuterMostLambda = 
          getOutermostEnclosingLambda(Record);
      if (!OuterMostLambda->getLambdaManglingNumber())
        return getInternalLinkageFor(D);
      
      return getLVForClosure(
                OuterMostLambda->getDeclContext()->getRedeclContext(),
                OuterMostLambda->getLambdaContextDecl(), computation);
    }
    
    break;
  }
}

// Handle linkage for namespace-scope names.
if (D->getDeclContext()->getRedeclContext()->isFileContext())
  return getLVForNamespaceScopeDecl(D, computation, IgnoreVarTypeLinkage);

// C++ [basic.link]p5:
//   In addition, a member function, static data member, a named
//   class or enumeration of class scope, or an unnamed class or
//   enumeration defined in a class-scope typedef declaration such
//   that the class or enumeration has the typedef name for linkage
//   purposes (7.1.3), has external linkage if the name of the class
//   has external linkage.
if (D->getDeclContext()->isRecord())
  return getLVForClassMember(D, computation, IgnoreVarTypeLinkage);

// C++ [basic.link]p6:
//   The name of a function declared in block scope and the name of
//   an object declared by a block scope extern declaration have
//   linkage. If there is a visible declaration of an entity with
//   linkage having the same name and type, ignoring entities
//   declared outside the innermost enclosing namespace scope, the
//   block scope declaration declares that same entity and receives
//   the linkage of the previous declaration. If there is more than
//   one such matching entity, the program is ill-formed. Otherwise,
//   if no matching entity is found, the block scope entity receives
//   external linkage.
if (D->getDeclContext()->isFunctionOrMethod())
  return getLVForLocalDecl(D, computation);

// C++ [basic.link]p6:
//   Names not covered by these rules have no linkage.
return LinkageInfo::none();
1396}

1398/// getLVForDecl - Get the linkage and visibility for the given declaration.
1399LinkageInfo LinkageComputer::getLVForDecl(const NamedDecl *D,
                                        LVComputationKind computation) {
// Internal_linkage attribute overrides other considerations.
if (D->hasAttr<InternalLinkageAttr>())
  return getInternalLinkageFor(D);

if (computation.IgnoreAllVisibility && D->hasCachedLinkage())
  return LinkageInfo(D->getCachedLinkage(), DefaultVisibility, false);

if (llvm::Optional<LinkageInfo> LI = lookup(D, computation))
  return *LI;

LinkageInfo LV = computeLVForDecl(D, computation);
if (D->hasCachedLinkage())
  assert(D->getCachedLinkage() == LV.getLinkage())(static_cast <bool> (D->getCachedLinkage() == LV.getLinkage
()) ? void (0) : __assert_fail ("D->getCachedLinkage() == LV.getLinkage()"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 1413, __extension__ __PRETTY_FUNCTION__));

D->setCachedLinkage(LV.getLinkage());
cache(D, computation, LV);

1418#ifndef NDEBUG
// In C (because of gnu inline) and in c++ with microsoft extensions an
// static can follow an extern, so we can have two decls with different
// linkages.
const LangOptions &Opts = D->getASTContext().getLangOpts();
if (!Opts.CPlusPlus || Opts.MicrosoftExt)
  return LV;

// We have just computed the linkage for this decl. By induction we know
// that all other computed linkages match, check that the one we just
// computed also does.
NamedDecl *Old = nullptr;
for (auto I : D->redecls()) {
  auto *T = cast<NamedDecl>(I);
  if (T == D)
    continue;
  if (!T->isInvalidDecl() && T->hasCachedLinkage()) {
    Old = T;
    break;
  }
}
assert(!Old || Old->getCachedLinkage() == D->getCachedLinkage())(static_cast <bool> (!Old || Old->getCachedLinkage()
 == D->getCachedLinkage()) ? void (0) : __assert_fail ("!Old || Old->getCachedLinkage() == D->getCachedLinkage()"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 1439, __extension__ __PRETTY_FUNCTION__));
1440#endif

return LV;
1443}

1445LinkageInfo LinkageComputer::getDeclLinkageAndVisibility(const NamedDecl *D) {
return getLVForDecl(D,
                    LVComputationKind(usesTypeVisibility(D)
                                          ? NamedDecl::VisibilityForType
                                          : NamedDecl::VisibilityForValue));
1450}

1452Module *Decl::getOwningModuleForLinkage(bool IgnoreLinkage) const {
Module *M = getOwningModule();
if (!M)
  return nullptr;

switch (M->Kind) {
case Module::ModuleMapModule:
  // Module map modules have no special linkage semantics.
  return nullptr;

case Module::ModuleInterfaceUnit:
  return M;

case Module::GlobalModuleFragment: {
  // External linkage declarations in the global module have no owning module
  // for linkage purposes. But internal linkage declarations in the global
  // module fragment of a particular module are owned by that module for
  // linkage purposes.
  if (IgnoreLinkage)
    return nullptr;
  bool InternalLinkage;
  if (auto *ND = dyn_cast<NamedDecl>(this))
    InternalLinkage = !ND->hasExternalFormalLinkage();
  else {
    auto *NSD = dyn_cast<NamespaceDecl>(this);
    InternalLinkage = (NSD && NSD->isAnonymousNamespace()) ||
                      isInAnonymousNamespace();
  }
  return InternalLinkage ? M->Parent : nullptr;
}
}

llvm_unreachable("unknown module kind")::llvm::llvm_unreachable_internal("unknown module kind", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 1484);
1485}

1487void NamedDecl::printName(raw_ostream &os) const {
os << Name;
1489}

1491std::string NamedDecl::getQualifiedNameAsString() const {
std::string QualName;
llvm::raw_string_ostream OS(QualName);
printQualifiedName(OS, getASTContext().getPrintingPolicy());
return OS.str();
1496}

1498void NamedDecl::printQualifiedName(raw_ostream &OS) const {
printQualifiedName(OS, getASTContext().getPrintingPolicy());
1500}

1502void NamedDecl::printQualifiedName(raw_ostream &OS,
                                 const PrintingPolicy &P) const {
const DeclContext *Ctx = getDeclContext();

// For ObjC methods, look through categories and use the interface as context.
if (auto *MD = dyn_cast<ObjCMethodDecl>(this))
  if (auto *ID = MD->getClassInterface())
    Ctx = ID;

if (Ctx->isFunctionOrMethod()) {
  printName(OS);
  return;
}

using ContextsTy = SmallVector<const DeclContext *, 8>;
ContextsTy Contexts;

// Collect named contexts.
while (Ctx) {
  if (isa<NamedDecl>(Ctx))
    Contexts.push_back(Ctx);
  Ctx = Ctx->getParent();
}

for (const DeclContext *DC : llvm::reverse(Contexts)) {
  if (const auto *Spec = dyn_cast<ClassTemplateSpecializationDecl>(DC)) {
    OS << Spec->getName();
    const TemplateArgumentList &TemplateArgs = Spec->getTemplateArgs();
    printTemplateArgumentList(OS, TemplateArgs.asArray(), P);
  } else if (const auto *ND = dyn_cast<NamespaceDecl>(DC)) {
    if (P.SuppressUnwrittenScope &&
        (ND->isAnonymousNamespace() || ND->isInline()))
      continue;
    if (ND->isAnonymousNamespace()) {
      OS << (P.MSVCFormatting ? "`anonymous namespace\'"
                              : "(anonymous namespace)");
    }
    else
      OS << *ND;
  } else if (const auto *RD = dyn_cast<RecordDecl>(DC)) {
    if (!RD->getIdentifier())
      OS << "(anonymous " << RD->getKindName() << ')';
    else
      OS << *RD;
  } else if (const auto *FD = dyn_cast<FunctionDecl>(DC)) {
    const FunctionProtoType *FT = nullptr;
    if (FD->hasWrittenPrototype())
      FT = dyn_cast<FunctionProtoType>(FD->getType()->castAs<FunctionType>());

    OS << *FD << '(';
    if (FT) {
      unsigned NumParams = FD->getNumParams();
      for (unsigned i = 0; i < NumParams; ++i) {
        if (i)
          OS << ", ";
        OS << FD->getParamDecl(i)->getType().stream(P);
      }

      if (FT->isVariadic()) {
        if (NumParams > 0)
          OS << ", ";
        OS << "...";
      }
    }
    OS << ')';
  } else if (const auto *ED = dyn_cast<EnumDecl>(DC)) {
    // C++ [dcl.enum]p10: Each enum-name and each unscoped
    // enumerator is declared in the scope that immediately contains
    // the enum-specifier. Each scoped enumerator is declared in the
    // scope of the enumeration.
    // For the case of unscoped enumerator, do not include in the qualified
    // name any information about its enum enclosing scope, as its visibility
    // is global.
    if (ED->isScoped())
      OS << *ED;
    else
      continue;
  } else {
    OS << *cast<NamedDecl>(DC);
  }
  OS << "::";
}

if (getDeclName() || isa<DecompositionDecl>(this))
  OS << *this;
else
  OS << "(anonymous)";
1589}

1591void NamedDecl::getNameForDiagnostic(raw_ostream &OS,
                                   const PrintingPolicy &Policy,
                                   bool Qualified) const {
if (Qualified)
  printQualifiedName(OS, Policy);
else
  printName(OS);
1598}

1600template<typename T> static bool isRedeclarableImpl(Redeclarable<T> *) {
return true;
1602}
1603static bool isRedeclarableImpl(...) { return false; }
1604static bool isRedeclarable(Decl::Kind K) {
switch (K) {
1606#define DECL(Type, Base) \
case Decl::Type: \
  return isRedeclarableImpl((Type##Decl *)nullptr);
1609#define ABSTRACT_DECL(DECL)
1610#include "clang/AST/DeclNodes.inc"
}
llvm_unreachable("unknown decl kind")::llvm::llvm_unreachable_internal("unknown decl kind", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 1612);
1613}

1615bool NamedDecl::declarationReplaces(NamedDecl *OldD, bool IsKnownNewer) const {
assert(getDeclName() == OldD->getDeclName() && "Declaration name mismatch")(static_cast <bool> (getDeclName() == OldD->getDeclName
() && "Declaration name mismatch") ? void (0) : __assert_fail
 ("getDeclName() == OldD->getDeclName() && \"Declaration name mismatch\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 1616, __extension__ __PRETTY_FUNCTION__));

// Never replace one imported declaration with another; we need both results
// when re-exporting.
if (OldD->isFromASTFile() && isFromASTFile())
  return false;

// A kind mismatch implies that the declaration is not replaced.
if (OldD->getKind() != getKind())
  return false;

// For method declarations, we never replace. (Why?)
if (isa<ObjCMethodDecl>(this))
  return false;

// For parameters, pick the newer one. This is either an error or (in
// Objective-C) permitted as an extension.
if (isa<ParmVarDecl>(this))
  return true;

// Inline namespaces can give us two declarations with the same
// name and kind in the same scope but different contexts; we should
// keep both declarations in this case.
if (!this->getDeclContext()->getRedeclContext()->Equals(
        OldD->getDeclContext()->getRedeclContext()))
  return false;

// Using declarations can be replaced if they import the same name from the
// same context.
if (auto *UD = dyn_cast<UsingDecl>(this)) {
  ASTContext &Context = getASTContext();
  return Context.getCanonicalNestedNameSpecifier(UD->getQualifier()) ==
         Context.getCanonicalNestedNameSpecifier(
             cast<UsingDecl>(OldD)->getQualifier());
}
if (auto *UUVD = dyn_cast<UnresolvedUsingValueDecl>(this)) {
  ASTContext &Context = getASTContext();
  return Context.getCanonicalNestedNameSpecifier(UUVD->getQualifier()) ==
         Context.getCanonicalNestedNameSpecifier(
                      cast<UnresolvedUsingValueDecl>(OldD)->getQualifier());
}

if (isRedeclarable(getKind())) {
  if (getCanonicalDecl() != OldD->getCanonicalDecl())
    return false;

  if (IsKnownNewer)
    return true;

  // Check whether this is actually newer than OldD. We want to keep the
  // newer declaration. This loop will usually only iterate once, because
  // OldD is usually the previous declaration.
  for (auto D : redecls()) {
    if (D == OldD)
      break;

    // If we reach the canonical declaration, then OldD is not actually older
    // than this one.
    //
    // FIXME: In this case, we should not add this decl to the lookup table.
    if (D->isCanonicalDecl())
      return false;
  }

  // It's a newer declaration of the same kind of declaration in the same
  // scope: we want this decl instead of the existing one.
  return true;
}

// In all other cases, we need to keep both declarations in case they have
// different visibility. Any attempt to use the name will result in an
// ambiguity if more than one is visible.
return false;
1689}

1691bool NamedDecl::hasLinkage() const {
return getFormalLinkage() != NoLinkage;
1693}

1695NamedDecl *NamedDecl::getUnderlyingDeclImpl() {
NamedDecl *ND = this;
while (auto *UD = dyn_cast<UsingShadowDecl>(ND))
  ND = UD->getTargetDecl();

if (auto *AD = dyn_cast<ObjCCompatibleAliasDecl>(ND))
  return AD->getClassInterface();

if (auto *AD = dyn_cast<NamespaceAliasDecl>(ND))
  return AD->getNamespace();

return ND;
1707}

1709bool NamedDecl::isCXXInstanceMember() const {
if (!isCXXClassMember())
  return false;

const NamedDecl *D = this;
if (isa<UsingShadowDecl>(D))
  D = cast<UsingShadowDecl>(D)->getTargetDecl();

if (isa<FieldDecl>(D) || isa<IndirectFieldDecl>(D) || isa<MSPropertyDecl>(D))
  return true;
if (const auto *MD = dyn_cast_or_null<CXXMethodDecl>(D->getAsFunction()))
  return MD->isInstance();
return false;
1722}

1724//===----------------------------------------------------------------------===//
1725// DeclaratorDecl Implementation
1726//===----------------------------------------------------------------------===//

1728template <typename DeclT>
1729static SourceLocation getTemplateOrInnerLocStart(const DeclT *decl) {
if (decl->getNumTemplateParameterLists() > 0)
  return decl->getTemplateParameterList(0)->getTemplateLoc();
else
  return decl->getInnerLocStart();
1734}

1736SourceLocation DeclaratorDecl::getTypeSpecStartLoc() const {
TypeSourceInfo *TSI = getTypeSourceInfo();
if (TSI) return TSI->getTypeLoc().getBeginLoc();
return SourceLocation();
1740}

1742void DeclaratorDecl::setQualifierInfo(NestedNameSpecifierLoc QualifierLoc) {
if (QualifierLoc) {
  // Make sure the extended decl info is allocated.
  if (!hasExtInfo()) {
    // Save (non-extended) type source info pointer.
    auto *savedTInfo = DeclInfo.get<TypeSourceInfo*>();
    // Allocate external info struct.
    DeclInfo = new (getASTContext()) ExtInfo;
    // Restore savedTInfo into (extended) decl info.
    getExtInfo()->TInfo = savedTInfo;
  }
  // Set qualifier info.
  getExtInfo()->QualifierLoc = QualifierLoc;
} else {
  // Here Qualifier == 0, i.e., we are removing the qualifier (if any).
  if (hasExtInfo()) {
    if (getExtInfo()->NumTemplParamLists == 0) {
      // Save type source info pointer.
      TypeSourceInfo *savedTInfo = getExtInfo()->TInfo;
      // Deallocate the extended decl info.
      getASTContext().Deallocate(getExtInfo());
      // Restore savedTInfo into (non-extended) decl info.
      DeclInfo = savedTInfo;
    }
    else
      getExtInfo()->QualifierLoc = QualifierLoc;
  }
}
1770}

1772void DeclaratorDecl::setTemplateParameterListsInfo(
  ASTContext &Context, ArrayRef<TemplateParameterList *> TPLists) {
assert(!TPLists.empty())(static_cast <bool> (!TPLists.empty()) ? void (0) : __assert_fail
 ("!TPLists.empty()", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 1774, __extension__ __PRETTY_FUNCTION__));
// Make sure the extended decl info is allocated.
if (!hasExtInfo()) {
  // Save (non-extended) type source info pointer.
  auto *savedTInfo = DeclInfo.get<TypeSourceInfo*>();
  // Allocate external info struct.
  DeclInfo = new (getASTContext()) ExtInfo;
  // Restore savedTInfo into (extended) decl info.
  getExtInfo()->TInfo = savedTInfo;
}
// Set the template parameter lists info.
getExtInfo()->setTemplateParameterListsInfo(Context, TPLists);
1786}

1788SourceLocation DeclaratorDecl::getOuterLocStart() const {
return getTemplateOrInnerLocStart(this);
1790}

1792// Helper function: returns true if QT is or contains a type
1793// having a postfix component.
1794static bool typeIsPostfix(QualType QT) {
while (true) {
  const Type* T = QT.getTypePtr();
  switch (T->getTypeClass()) {
  default:
    return false;
  case Type::Pointer:
    QT = cast<PointerType>(T)->getPointeeType();
    break;
  case Type::BlockPointer:
    QT = cast<BlockPointerType>(T)->getPointeeType();
    break;
  case Type::MemberPointer:
    QT = cast<MemberPointerType>(T)->getPointeeType();
    break;
  case Type::LValueReference:
  case Type::RValueReference:
    QT = cast<ReferenceType>(T)->getPointeeType();
    break;
  case Type::PackExpansion:
    QT = cast<PackExpansionType>(T)->getPattern();
    break;
  case Type::Paren:
  case Type::ConstantArray:
  case Type::DependentSizedArray:
  case Type::IncompleteArray:
  case Type::VariableArray:
  case Type::FunctionProto:
  case Type::FunctionNoProto:
    return true;
  }
}
1826}

1828SourceRange DeclaratorDecl::getSourceRange() const {
SourceLocation RangeEnd = getLocation();
if (TypeSourceInfo *TInfo = getTypeSourceInfo()) {
  // If the declaration has no name or the type extends past the name take the
  // end location of the type.
  if (!getDeclName() || typeIsPostfix(TInfo->getType()))
    RangeEnd = TInfo->getTypeLoc().getSourceRange().getEnd();
}
return SourceRange(getOuterLocStart(), RangeEnd);
1837}

1839void QualifierInfo::setTemplateParameterListsInfo(
  ASTContext &Context, ArrayRef<TemplateParameterList *> TPLists) {
// Free previous template parameters (if any).
if (NumTemplParamLists > 0) {
  Context.Deallocate(TemplParamLists);
  TemplParamLists = nullptr;
  NumTemplParamLists = 0;
}
// Set info on matched template parameter lists (if any).
if (!TPLists.empty()) {
  TemplParamLists = new (Context) TemplateParameterList *[TPLists.size()];
  NumTemplParamLists = TPLists.size();
  std::copy(TPLists.begin(), TPLists.end(), TemplParamLists);
}
1853}

1855//===----------------------------------------------------------------------===//
1856// VarDecl Implementation
1857//===----------------------------------------------------------------------===//

1859const char *VarDecl::getStorageClassSpecifierString(StorageClass SC) {
switch (SC) {
case SC_None:                 break;
case SC_Auto:                 return "auto";
case SC_Extern:               return "extern";
case SC_PrivateExtern:        return "__private_extern__";
case SC_Register:             return "register";
case SC_Static:               return "static";
}

llvm_unreachable("Invalid storage class")::llvm::llvm_unreachable_internal("Invalid storage class", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 1869);
1870}

1872VarDecl::VarDecl(Kind DK, ASTContext &C, DeclContext *DC,
               SourceLocation StartLoc, SourceLocation IdLoc,
               IdentifierInfo *Id, QualType T, TypeSourceInfo *TInfo,
               StorageClass SC)
  : DeclaratorDecl(DK, DC, IdLoc, Id, T, TInfo, StartLoc),
    redeclarable_base(C) {
static_assert(sizeof(VarDeclBitfields) <= sizeof(unsigned),
              "VarDeclBitfields too large!");
static_assert(sizeof(ParmVarDeclBitfields) <= sizeof(unsigned),
              "ParmVarDeclBitfields too large!");
static_assert(sizeof(NonParmVarDeclBitfields) <= sizeof(unsigned),
              "NonParmVarDeclBitfields too large!");
AllBits = 0;
VarDeclBits.SClass = SC;
// Everything else is implicitly initialized to false.
1887}

1889VarDecl *VarDecl::Create(ASTContext &C, DeclContext *DC,
                       SourceLocation StartL, SourceLocation IdL,
                       IdentifierInfo *Id, QualType T, TypeSourceInfo *TInfo,
                       StorageClass S) {
return new (C, DC) VarDecl(Var, C, DC, StartL, IdL, Id, T, TInfo, S);
1894}

1896VarDecl *VarDecl::CreateDeserialized(ASTContext &C, unsigned ID) {
return new (C, ID)
    VarDecl(Var, C, nullptr, SourceLocation(), SourceLocation(), nullptr,
            QualType(), nullptr, SC_None);
1900}

1902void VarDecl::setStorageClass(StorageClass SC) {
assert(isLegalForVariable(SC))(static_cast <bool> (isLegalForVariable(SC)) ? void (0)
 : __assert_fail ("isLegalForVariable(SC)", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 1903, __extension__ __PRETTY_FUNCTION__));
VarDeclBits.SClass = SC;
1905}

1907VarDecl::TLSKind VarDecl::getTLSKind() const {
switch (VarDeclBits.TSCSpec) {
case TSCS_unspecified:
  if (!hasAttr<ThreadAttr>() &&
      !(getASTContext().getLangOpts().OpenMPUseTLS &&
        getASTContext().getTargetInfo().isTLSSupported() &&
        hasAttr<OMPThreadPrivateDeclAttr>()))
    return TLS_None;
  return ((getASTContext().getLangOpts().isCompatibleWithMSVC(
              LangOptions::MSVC2015)) ||
          hasAttr<OMPThreadPrivateDeclAttr>())
             ? TLS_Dynamic
             : TLS_Static;
case TSCS___thread: // Fall through.
case TSCS__Thread_local:
  return TLS_Static;
case TSCS_thread_local:
  return TLS_Dynamic;
}
llvm_unreachable("Unknown thread storage class specifier!")::llvm::llvm_unreachable_internal("Unknown thread storage class specifier!"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 1926);
1927}

1929SourceRange VarDecl::getSourceRange() const {
if (const Expr *Init = getInit()) {
  SourceLocation InitEnd = Init->getLocEnd();
  // If Init is implicit, ignore its source range and fallback on 
  // DeclaratorDecl::getSourceRange() to handle postfix elements.
  if (InitEnd.isValid() && InitEnd != getLocation())
    return SourceRange(getOuterLocStart(), InitEnd);
}
return DeclaratorDecl::getSourceRange();
1938}

1940template<typename T>
1941static LanguageLinkage getDeclLanguageLinkage(const T &D) {
// C++ [dcl.link]p1: All function types, function names with external linkage,
// and variable names with external linkage have a language linkage.
if (!D.hasExternalFormalLinkage())
  return NoLanguageLinkage;

// Language linkage is a C++ concept, but saying that everything else in C has
// C language linkage fits the implementation nicely.
ASTContext &Context = D.getASTContext();
if (!Context.getLangOpts().CPlusPlus)
  return CLanguageLinkage;

// C++ [dcl.link]p4: A C language linkage is ignored in determining the
// language linkage of the names of class members and the function type of
// class member functions.
const DeclContext *DC = D.getDeclContext();
if (DC->isRecord())
  return CXXLanguageLinkage;

// If the first decl is in an extern "C" context, any other redeclaration
// will have C language linkage. If the first one is not in an extern "C"
// context, we would have reported an error for any other decl being in one.
if (isFirstInExternCContext(&D))
  return CLanguageLinkage;
return CXXLanguageLinkage;
1966}

1968template<typename T>
1969static bool isDeclExternC(const T &D) {
// Since the context is ignored for class members, they can only have C++
// language linkage or no language linkage.
const DeclContext *DC = D.getDeclContext();
if (DC->isRecord()) {
  assert(D.getASTContext().getLangOpts().CPlusPlus)(static_cast <bool> (D.getASTContext().getLangOpts().CPlusPlus
) ? void (0) : __assert_fail ("D.getASTContext().getLangOpts().CPlusPlus"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 1974, __extension__ __PRETTY_FUNCTION__));
  return false;
}

return D.getLanguageLinkage() == CLanguageLinkage;
1979}

1981LanguageLinkage VarDecl::getLanguageLinkage() const {
return getDeclLanguageLinkage(*this);
1983}

1985bool VarDecl::isExternC() const {
return isDeclExternC(*this);
1987}

1989bool VarDecl::isInExternCContext() const {
return getLexicalDeclContext()->isExternCContext();
1991}

1993bool VarDecl::isInExternCXXContext() const {
return getLexicalDeclContext()->isExternCXXContext();
1995}

1997VarDecl *VarDecl::getCanonicalDecl() { return getFirstDecl(); }

1999VarDecl::DefinitionKind
2000VarDecl::isThisDeclarationADefinition(ASTContext &C) const {
if (isThisDeclarationADemotedDefinition())
  return DeclarationOnly;

// C++ [basic.def]p2:
//   A declaration is a definition unless [...] it contains the 'extern'
//   specifier or a linkage-specification and neither an initializer [...],
//   it declares a non-inline static data member in a class declaration [...],
//   it declares a static data member outside a class definition and the variable
//   was defined within the class with the constexpr specifier [...],
// C++1y [temp.expl.spec]p15:
//   An explicit specialization of a static data member or an explicit
//   specialization of a static data member template is a definition if the
//   declaration includes an initializer; otherwise, it is a declaration.
//
// FIXME: How do you declare (but not define) a partial specialization of
// a static data member template outside the containing class?
if (isStaticDataMember()) {
  if (isOutOfLine() &&
      !(getCanonicalDecl()->isInline() &&
        getCanonicalDecl()->isConstexpr()) &&
      (hasInit() ||
       // If the first declaration is out-of-line, this may be an
       // instantiation of an out-of-line partial specialization of a variable
       // template for which we have not yet instantiated the initializer.
       (getFirstDecl()->isOutOfLine()
            ? getTemplateSpecializationKind() == TSK_Undeclared
            : getTemplateSpecializationKind() !=
                  TSK_ExplicitSpecialization) ||
       isa<VarTemplatePartialSpecializationDecl>(this)))
    return Definition;
  else if (!isOutOfLine() && isInline())
    return Definition;
  else
    return DeclarationOnly;
}
// C99 6.7p5:
//   A definition of an identifier is a declaration for that identifier that
//   [...] causes storage to be reserved for that object.
// Note: that applies for all non-file-scope objects.
// C99 6.9.2p1:
//   If the declaration of an identifier for an object has file scope and an
//   initializer, the declaration is an external definition for the identifier
if (hasInit())
  return Definition;

if (hasDefiningAttr())
  return Definition;

if (const auto *SAA = getAttr<SelectAnyAttr>())
  if (!SAA->isInherited())
    return Definition;

// A variable template specialization (other than a static data member
// template or an explicit specialization) is a declaration until we
// instantiate its initializer.
if (auto *VTSD = dyn_cast<VarTemplateSpecializationDecl>(this)) {
  if (VTSD->getTemplateSpecializationKind() != TSK_ExplicitSpecialization &&
      !isa<VarTemplatePartialSpecializationDecl>(VTSD) &&
      !VTSD->IsCompleteDefinition)
    return DeclarationOnly;
}

if (hasExternalStorage())
  return DeclarationOnly;

// [dcl.link] p7:
//   A declaration directly contained in a linkage-specification is treated
//   as if it contains the extern specifier for the purpose of determining
//   the linkage of the declared name and whether it is a definition.
if (isSingleLineLanguageLinkage(*this))
  return DeclarationOnly;

// C99 6.9.2p2:
//   A declaration of an object that has file scope without an initializer,
//   and without a storage class specifier or the scs 'static', constitutes
//   a tentative definition.
// No such thing in C++.
if (!C.getLangOpts().CPlusPlus && isFileVarDecl())
  return TentativeDefinition;

// What's left is (in C, block-scope) declarations without initializers or
// external storage. These are definitions.
return Definition;
2084}

2086VarDecl *VarDecl::getActingDefinition() {
DefinitionKind Kind = isThisDeclarationADefinition();
if (Kind != TentativeDefinition)
  return nullptr;

VarDecl *LastTentative = nullptr;
VarDecl *First = getFirstDecl();
for (auto I : First->redecls()) {
  Kind = I->isThisDeclarationADefinition();
  if (Kind == Definition)
    return nullptr;
  else if (Kind == TentativeDefinition)
    LastTentative = I;
}
return LastTentative;
2101}

2103VarDecl *VarDecl::getDefinition(ASTContext &C) {
VarDecl *First = getFirstDecl();
for (auto I : First->redecls()) {
  if (I->isThisDeclarationADefinition(C) == Definition)
    return I;
}
return nullptr;
2110}

2112VarDecl::DefinitionKind VarDecl::hasDefinition(ASTContext &C) const {
DefinitionKind Kind = DeclarationOnly;

const VarDecl *First = getFirstDecl();
for (auto I : First->redecls()) {
  Kind = std::max(Kind, I->isThisDeclarationADefinition(C));
  if (Kind == Definition)
    break;
}

return Kind;
2123}

2125const Expr *VarDecl::getAnyInitializer(const VarDecl *&D) const {
for (auto I : redecls()) {
  if (auto Expr = I->getInit()) {
    D = I;
    return Expr;
  }
}
return nullptr;
2133}

2135bool VarDecl::hasInit() const {
if (auto *P = dyn_cast<ParmVarDecl>(this))
  if (P->hasUnparsedDefaultArg() || P->hasUninstantiatedDefaultArg())
    return false;

return !Init.isNull();
2141}

2143Expr *VarDecl::getInit() {
if (!hasInit())
  return nullptr;

if (auto *S = Init.dyn_cast<Stmt *>())
  return cast<Expr>(S);

return cast_or_null<Expr>(Init.get<EvaluatedStmt *>()->Value);
2151}

2153Stmt **VarDecl::getInitAddress() {
if (auto *ES = Init.dyn_cast<EvaluatedStmt *>())
  return &ES->Value;

return Init.getAddrOfPtr1();
2158}

2160bool VarDecl::isOutOfLine() const {
if (Decl::isOutOfLine())
  return true;

if (!isStaticDataMember())
  return false;

// If this static data member was instantiated from a static data member of
// a class template, check whether that static data member was defined 
// out-of-line.
if (VarDecl *VD = getInstantiatedFromStaticDataMember())
  return VD->isOutOfLine();

return false;
2174}

2176void VarDecl::setInit(Expr *I) {
if (auto *Eval = Init.dyn_cast<EvaluatedStmt *>()) {
  Eval->~EvaluatedStmt();
  getASTContext().Deallocate(Eval);
}

Init = I;
2183}

2185bool VarDecl::isUsableInConstantExpressions(ASTContext &C) const {
const LangOptions &Lang = C.getLangOpts();

if (!Lang.CPlusPlus)
  return false;

// In C++11, any variable of reference type can be used in a constant
// expression if it is initialized by a constant expression.
if (Lang.CPlusPlus11 && getType()->isReferenceType())
  return true;

// Only const objects can be used in constant expressions in C++. C++98 does
// not require the variable to be non-volatile, but we consider this to be a
// defect.
if (!getType().isConstQualified() || getType().isVolatileQualified())
  return false;

// In C++, const, non-volatile variables of integral or enumeration types
// can be used in constant expressions.
if (getType()->isIntegralOrEnumerationType())
  return true;

// Additionally, in C++11, non-volatile constexpr variables can be used in
// constant expressions.
return Lang.CPlusPlus11 && isConstexpr();
2210}

2212/// Convert the initializer for this declaration to the elaborated EvaluatedStmt
2213/// form, which contains extra information on the evaluated value of the
2214/// initializer.
2215EvaluatedStmt *VarDecl::ensureEvaluatedStmt() const {
auto *Eval = Init.dyn_cast<EvaluatedStmt *>();
if (!Eval) {
  // Note: EvaluatedStmt contains an APValue, which usually holds
  // resources not allocated from the ASTContext.  We need to do some
  // work to avoid leaking those, but we do so in VarDecl::evaluateValue
  // where we can detect whether there's anything to clean up or not.
  Eval = new (getASTContext()) EvaluatedStmt;
  Eval->Value = Init.get<Stmt *>();
  Init = Eval;
}
return Eval;
2227}

2229APValue *VarDecl::evaluateValue() const {
SmallVector<PartialDiagnosticAt, 8> Notes;
return evaluateValue(Notes);
2232}

2234APValue *VarDecl::evaluateValue(
  SmallVectorImpl<PartialDiagnosticAt> &Notes) const {
EvaluatedStmt *Eval = ensureEvaluatedStmt();

// We only produce notes indicating why an initializer is non-constant the
// first time it is evaluated. FIXME: The notes won't always be emitted the
// first time we try evaluation, so might not be produced at all.
if (Eval->WasEvaluated)
  return Eval->Evaluated.isUninit() ? nullptr : &Eval->Evaluated;

const auto *Init = cast<Expr>(Eval->Value);
assert(!Init->isValueDependent())(static_cast <bool> (!Init->isValueDependent()) ? void
 (0) : __assert_fail ("!Init->isValueDependent()", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 2245, __extension__ __PRETTY_FUNCTION__));

if (Eval->IsEvaluating) {
  // FIXME: Produce a diagnostic for self-initialization.
  Eval->CheckedICE = true;
  Eval->IsICE = false;
  return nullptr;
}

Eval->IsEvaluating = true;

bool Result = Init->EvaluateAsInitializer(Eval->Evaluated, getASTContext(),
                                          this, Notes);

// Ensure the computed APValue is cleaned up later if evaluation succeeded,
// or that it's empty (so that there's nothing to clean up) if evaluation
// failed.
if (!Result)
  Eval->Evaluated = APValue();
else if (Eval->Evaluated.needsCleanup())
  getASTContext().addDestruction(&Eval->Evaluated);

Eval->IsEvaluating = false;
Eval->WasEvaluated = true;

// In C++11, we have determined whether the initializer was a constant
// expression as a side-effect.
if (getASTContext().getLangOpts().CPlusPlus11 && !Eval->CheckedICE) {
  Eval->CheckedICE = true;
  Eval->IsICE = Result && Notes.empty();
}

return Result ? &Eval->Evaluated : nullptr;
2278}

2280APValue *VarDecl::getEvaluatedValue() const {
if (EvaluatedStmt *Eval = Init.dyn_cast<EvaluatedStmt *>())
  if (Eval->WasEvaluated)
    return &Eval->Evaluated;

return nullptr;
2286}

2288bool VarDecl::isInitKnownICE() const {
if (EvaluatedStmt *Eval = Init.dyn_cast<EvaluatedStmt *>())
  return Eval->CheckedICE;

return false;
2293}

2295bool VarDecl::isInitICE() const {
assert(isInitKnownICE() &&(static_cast <bool> (isInitKnownICE() && "Check whether we already know that the initializer is an ICE"
) ? void (0) : __assert_fail ("isInitKnownICE() && \"Check whether we already know that the initializer is an ICE\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 2297, __extension__ __PRETTY_FUNCTION__))
       "Check whether we already know that the initializer is an ICE")(static_cast <bool> (isInitKnownICE() && "Check whether we already know that the initializer is an ICE"
) ? void (0) : __assert_fail ("isInitKnownICE() && \"Check whether we already know that the initializer is an ICE\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 2297, __extension__ __PRETTY_FUNCTION__));
return Init.get<EvaluatedStmt *>()->IsICE;
2299}

2301bool VarDecl::checkInitIsICE() const {
// Initializers of weak variables are never ICEs.
if (isWeak())
  return false;

EvaluatedStmt *Eval = ensureEvaluatedStmt();
if (Eval->CheckedICE)
  // We have already checked whether this subexpression is an
  // integral constant expression.
  return Eval->IsICE;

const auto *Init = cast<Expr>(Eval->Value);
assert(!Init->isValueDependent())(static_cast <bool> (!Init->isValueDependent()) ? void
 (0) : __assert_fail ("!Init->isValueDependent()", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 2313, __extension__ __PRETTY_FUNCTION__));

// In C++11, evaluate the initializer to check whether it's a constant
// expression.
if (getASTContext().getLangOpts().CPlusPlus11) {
  SmallVector<PartialDiagnosticAt, 8> Notes;
  evaluateValue(Notes);
  return Eval->IsICE;
}

// It's an ICE whether or not the definition we found is
// out-of-line.  See DR 721 and the discussion in Clang PR
// 6206 for details.

if (Eval->CheckingICE)
  return false;
Eval->CheckingICE = true;

Eval->IsICE = Init->isIntegerConstantExpr(getASTContext());
Eval->CheckingICE = false;
Eval->CheckedICE = true;
return Eval->IsICE;
2335}

2337template<typename DeclT>
2338static DeclT *getDefinitionOrSelf(DeclT *D) {
assert(D)(static_cast <bool> (D) ? void (0) : __assert_fail ("D"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 2339, __extension__ __PRETTY_FUNCTION__));
if (auto *Def = D->getDefinition())
  return Def;
return D;
2343}

2345VarDecl *VarDecl::getTemplateInstantiationPattern() const {
// If it's a variable template specialization, find the template or partial
// specialization from which it was instantiated.
if (auto *VDTemplSpec = dyn_cast<VarTemplateSpecializationDecl>(this)) {
  auto From = VDTemplSpec->getInstantiatedFrom();
  if (auto *VTD = From.dyn_cast<VarTemplateDecl *>()) {
    while (auto *NewVTD = VTD->getInstantiatedFromMemberTemplate()) {
      if (NewVTD->isMemberSpecialization())
        break;
      VTD = NewVTD;
    }
    return getDefinitionOrSelf(VTD->getTemplatedDecl());
  }
  if (auto *VTPSD =
          From.dyn_cast<VarTemplatePartialSpecializationDecl *>()) {
    while (auto *NewVTPSD = VTPSD->getInstantiatedFromMember()) {
      if (NewVTPSD->isMemberSpecialization())
        break;
      VTPSD = NewVTPSD;
    }
    return getDefinitionOrSelf<VarDecl>(VTPSD);
  }
}

if (MemberSpecializationInfo *MSInfo = getMemberSpecializationInfo()) {
  if (isTemplateInstantiation(MSInfo->getTemplateSpecializationKind())) {
    VarDecl *VD = getInstantiatedFromStaticDataMember();
    while (auto *NewVD = VD->getInstantiatedFromStaticDataMember())
      VD = NewVD;
    return getDefinitionOrSelf(VD);
  }
}

if (VarTemplateDecl *VarTemplate = getDescribedVarTemplate()) {
  while (VarTemplate->getInstantiatedFromMemberTemplate()) {
    if (VarTemplate->isMemberSpecialization())
      break;
    VarTemplate = VarTemplate->getInstantiatedFromMemberTemplate();
  }

  return getDefinitionOrSelf(VarTemplate->getTemplatedDecl());
}
return nullptr;
2388}

2390VarDecl *VarDecl::getInstantiatedFromStaticDataMember() const {
if (MemberSpecializationInfo *MSI = getMemberSpecializationInfo())
  return cast<VarDecl>(MSI->getInstantiatedFrom());

return nullptr;
2395}

2397TemplateSpecializationKind VarDecl::getTemplateSpecializationKind() const {
if (const auto *Spec = dyn_cast<VarTemplateSpecializationDecl>(this))
  return Spec->getSpecializationKind();

if (MemberSpecializationInfo *MSI = getMemberSpecializationInfo())
  return MSI->getTemplateSpecializationKind();

return TSK_Undeclared;
2405}

2407SourceLocation VarDecl::getPointOfInstantiation() const {
if (const auto *Spec = dyn_cast<VarTemplateSpecializationDecl>(this))
  return Spec->getPointOfInstantiation();

if (MemberSpecializationInfo *MSI = getMemberSpecializationInfo())
  return MSI->getPointOfInstantiation();

return SourceLocation();
2415}

2417VarTemplateDecl *VarDecl::getDescribedVarTemplate() const {
return getASTContext().getTemplateOrSpecializationInfo(this)
    .dyn_cast<VarTemplateDecl *>();
2420}

2422void VarDecl::setDescribedVarTemplate(VarTemplateDecl *Template) {
getASTContext().setTemplateOrSpecializationInfo(this, Template);
2424}

2426MemberSpecializationInfo *VarDecl::getMemberSpecializationInfo() const {
if (isStaticDataMember())
  // FIXME: Remove ?
  // return getASTContext().getInstantiatedFromStaticDataMember(this);
  return getASTContext().getTemplateOrSpecializationInfo(this)
      .dyn_cast<MemberSpecializationInfo *>();
return nullptr;
2433}

2435void VarDecl::setTemplateSpecializationKind(TemplateSpecializationKind TSK,
                                       SourceLocation PointOfInstantiation) {
assert((isa<VarTemplateSpecializationDecl>(this) ||(static_cast <bool> ((isa<VarTemplateSpecializationDecl
>(this) || getMemberSpecializationInfo()) && "not a variable or static data member template specialization"
) ? void (0) : __assert_fail ("(isa<VarTemplateSpecializationDecl>(this) || getMemberSpecializationInfo()) && \"not a variable or static data member template specialization\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 2439, __extension__ __PRETTY_FUNCTION__))
        getMemberSpecializationInfo()) &&(static_cast <bool> ((isa<VarTemplateSpecializationDecl
>(this) || getMemberSpecializationInfo()) && "not a variable or static data member template specialization"
) ? void (0) : __assert_fail ("(isa<VarTemplateSpecializationDecl>(this) || getMemberSpecializationInfo()) && \"not a variable or static data member template specialization\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 2439, __extension__ __PRETTY_FUNCTION__))
       "not a variable or static data member template specialization")(static_cast <bool> ((isa<VarTemplateSpecializationDecl
>(this) || getMemberSpecializationInfo()) && "not a variable or static data member template specialization"
) ? void (0) : __assert_fail ("(isa<VarTemplateSpecializationDecl>(this) || getMemberSpecializationInfo()) && \"not a variable or static data member template specialization\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 2439, __extension__ __PRETTY_FUNCTION__));

if (VarTemplateSpecializationDecl *Spec =
        dyn_cast<VarTemplateSpecializationDecl>(this)) {
  Spec->setSpecializationKind(TSK);
  if (TSK != TSK_ExplicitSpecialization && PointOfInstantiation.isValid() &&
      Spec->getPointOfInstantiation().isInvalid()) {
    Spec->setPointOfInstantiation(PointOfInstantiation);
    if (ASTMutationListener *L = getASTContext().getASTMutationListener())
      L->InstantiationRequested(this);
  }
}

if (MemberSpecializationInfo *MSI = getMemberSpecializationInfo()) {
  MSI->setTemplateSpecializationKind(TSK);
  if (TSK != TSK_ExplicitSpecialization && PointOfInstantiation.isValid() &&
      MSI->getPointOfInstantiation().isInvalid()) {
    MSI->setPointOfInstantiation(PointOfInstantiation);
    if (ASTMutationListener *L = getASTContext().getASTMutationListener())
      L->InstantiationRequested(this);
  }
}
2461}

2463void
2464VarDecl::setInstantiationOfStaticDataMember(VarDecl *VD,
                                          TemplateSpecializationKind TSK) {
assert(getASTContext().getTemplateOrSpecializationInfo(this).isNull() &&(static_cast <bool> (getASTContext().getTemplateOrSpecializationInfo
(this).isNull() && "Previous template or instantiation?"
) ? void (0) : __assert_fail ("getASTContext().getTemplateOrSpecializationInfo(this).isNull() && \"Previous template or instantiation?\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 2467, __extension__ __PRETTY_FUNCTION__))
       "Previous template or instantiation?")(static_cast <bool> (getASTContext().getTemplateOrSpecializationInfo
(this).isNull() && "Previous template or instantiation?"
) ? void (0) : __assert_fail ("getASTContext().getTemplateOrSpecializationInfo(this).isNull() && \"Previous template or instantiation?\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 2467, __extension__ __PRETTY_FUNCTION__));
getASTContext().setInstantiatedFromStaticDataMember(this, VD, TSK);
2469}

2471//===----------------------------------------------------------------------===//
2472// ParmVarDecl Implementation
2473//===----------------------------------------------------------------------===//

2475ParmVarDecl *ParmVarDecl::Create(ASTContext &C, DeclContext *DC,
                               SourceLocation StartLoc,
                               SourceLocation IdLoc, IdentifierInfo *Id,
                               QualType T, TypeSourceInfo *TInfo,
                               StorageClass S, Expr *DefArg) {
return new (C, DC) ParmVarDecl(ParmVar, C, DC, StartLoc, IdLoc, Id, T, TInfo,
                               S, DefArg);
2482}

2484QualType ParmVarDecl::getOriginalType() const {
TypeSourceInfo *TSI = getTypeSourceInfo();
QualType T = TSI ? TSI->getType() : getType();
if (const auto *DT = dyn_cast<DecayedType>(T))
  return DT->getOriginalType();
return T;
2490}

2492ParmVarDecl *ParmVarDecl::CreateDeserialized(ASTContext &C, unsigned ID) {
return new (C, ID)
    ParmVarDecl(ParmVar, C, nullptr, SourceLocation(), SourceLocation(),
                nullptr, QualType(), nullptr, SC_None, nullptr);
2496}

2498SourceRange ParmVarDecl::getSourceRange() const {
if (!hasInheritedDefaultArg()) {
  SourceRange ArgRange = getDefaultArgRange();
  if (ArgRange.isValid())
    return SourceRange(getOuterLocStart(), ArgRange.getEnd());
}

// DeclaratorDecl considers the range of postfix types as overlapping with the
// declaration name, but this is not the case with parameters in ObjC methods.
if (isa<ObjCMethodDecl>(getDeclContext()))
  return SourceRange(DeclaratorDecl::getLocStart(), getLocation());

return DeclaratorDecl::getSourceRange();
2511}

2513Expr *ParmVarDecl::getDefaultArg() {
assert(!hasUnparsedDefaultArg() && "Default argument is not yet parsed!")(static_cast <bool> (!hasUnparsedDefaultArg() &&
 "Default argument is not yet parsed!") ? void (0) : __assert_fail
 ("!hasUnparsedDefaultArg() && \"Default argument is not yet parsed!\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 2514, __extension__ __PRETTY_FUNCTION__));
assert(!hasUninstantiatedDefaultArg() &&(static_cast <bool> (!hasUninstantiatedDefaultArg() &&
 "Default argument is not yet instantiated!") ? void (0) : __assert_fail
 ("!hasUninstantiatedDefaultArg() && \"Default argument is not yet instantiated!\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 2516, __extension__ __PRETTY_FUNCTION__))
       "Default argument is not yet instantiated!")(static_cast <bool> (!hasUninstantiatedDefaultArg() &&
 "Default argument is not yet instantiated!") ? void (0) : __assert_fail
 ("!hasUninstantiatedDefaultArg() && \"Default argument is not yet instantiated!\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 2516, __extension__ __PRETTY_FUNCTION__));

Expr *Arg = getInit();
if (auto *E = dyn_cast_or_null<ExprWithCleanups>(Arg))
  return E->getSubExpr();

return Arg;
2523}

2525void ParmVarDecl::setDefaultArg(Expr *defarg) {
ParmVarDeclBits.DefaultArgKind = DAK_Normal;
Init = defarg;
2528}

2530SourceRange ParmVarDecl::getDefaultArgRange() const {
switch (ParmVarDeclBits.DefaultArgKind) {
case DAK_None:
case DAK_Unparsed:
  // Nothing we can do here.
  return SourceRange();

case DAK_Uninstantiated:
  return getUninstantiatedDefaultArg()->getSourceRange();

case DAK_Normal:
  if (const Expr *E = getInit())
    return E->getSourceRange();

  // Missing an actual expression, may be invalid.
  return SourceRange();
}
llvm_unreachable("Invalid default argument kind.")::llvm::llvm_unreachable_internal("Invalid default argument kind."
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 2547);
2548}

2550void ParmVarDecl::setUninstantiatedDefaultArg(Expr *arg) {
ParmVarDeclBits.DefaultArgKind = DAK_Uninstantiated;
Init = arg;
2553}

2555Expr *ParmVarDecl::getUninstantiatedDefaultArg() {
assert(hasUninstantiatedDefaultArg() &&(static_cast <bool> (hasUninstantiatedDefaultArg() &&
 "Wrong kind of initialization expression!") ? void (0) : __assert_fail
 ("hasUninstantiatedDefaultArg() && \"Wrong kind of initialization expression!\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 2557, __extension__ __PRETTY_FUNCTION__))
       "Wrong kind of initialization expression!")(static_cast <bool> (hasUninstantiatedDefaultArg() &&
 "Wrong kind of initialization expression!") ? void (0) : __assert_fail
 ("hasUninstantiatedDefaultArg() && \"Wrong kind of initialization expression!\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 2557, __extension__ __PRETTY_FUNCTION__));
return cast_or_null<Expr>(Init.get<Stmt *>());
2559}

2561bool ParmVarDecl::hasDefaultArg() const {
// FIXME: We should just return false for DAK_None here once callers are
// prepared for the case that we encountered an invalid default argument and
// were unable to even build an invalid expression.
return hasUnparsedDefaultArg() || hasUninstantiatedDefaultArg() ||
       !Init.isNull();
2567}

2569bool ParmVarDecl::isParameterPack() const {
return isa<PackExpansionType>(getType());
2571}

2573void ParmVarDecl::setParameterIndexLarge(unsigned parameterIndex) {
getASTContext().setParameterIndex(this, parameterIndex);
ParmVarDeclBits.ParameterIndex = ParameterIndexSentinel;
2576}

2578unsigned ParmVarDecl::getParameterIndexLarge() const {
return getASTContext().getParameterIndex(this);
2580}

2582//===----------------------------------------------------------------------===//
2583// FunctionDecl Implementation
2584//===----------------------------------------------------------------------===//

2586void FunctionDecl::getNameForDiagnostic(
  raw_ostream &OS, const PrintingPolicy &Policy, bool Qualified) const {
NamedDecl::getNameForDiagnostic(OS, Policy, Qualified);
const TemplateArgumentList *TemplateArgs = getTemplateSpecializationArgs();
if (TemplateArgs)
  printTemplateArgumentList(OS, TemplateArgs->asArray(), Policy);
2592}

2594bool FunctionDecl::isVariadic() const {
if (const auto *FT = getType()->getAs<FunctionProtoType>())
  return FT->isVariadic();
return false;
2598}

2600bool FunctionDecl::hasBody(const FunctionDecl *&Definition) const {
for (auto I : redecls()) {
  if (I->doesThisDeclarationHaveABody()) {
    Definition = I;
    return true;
  }
}

return false;
2609}

2611bool FunctionDecl::hasTrivialBody() const
2612{
Stmt *S = getBody();
if (!S) {
  // Since we don't have a body for this function, we don't know if it's
  // trivial or not.
  return false;
}

if (isa<CompoundStmt>(S) && cast<CompoundStmt>(S)->body_empty())
  return true;
return false;
2623}

2625bool FunctionDecl::isDefined(const FunctionDecl *&Definition) const {
for (auto I : redecls()) {
  if (I->isThisDeclarationADefinition()) {
    Definition = I;
    return true;
  }
}

return false;
2634}

2636Stmt *FunctionDecl::getBody(const FunctionDecl *&Definition) const {
if (!hasBody(Definition))
  return nullptr;

if (Definition->Body)
  return Definition->Body.get(getASTContext().getExternalSource());

return nullptr;
2644}

2646void FunctionDecl::setBody(Stmt *B) {
Body = B;
if (B)
  EndRangeLoc = B->getLocEnd();
2650}

2652void FunctionDecl::setPure(bool P) {
IsPure = P;
if (P)
  if (auto *Parent = dyn_cast<CXXRecordDecl>(getDeclContext()))
    Parent->markedVirtualFunctionPure();
2657}

2659template<std::size_t Len>
2660static bool isNamed(const NamedDecl *ND, const char (&Str)[Len]) {
IdentifierInfo *II = ND->getIdentifier();
return II && II->isStr(Str);
2663}

2665bool FunctionDecl::isMain() const {
const TranslationUnitDecl *tunit =
  dyn_cast<TranslationUnitDecl>(getDeclContext()->getRedeclContext());
return tunit &&
       !tunit->getASTContext().getLangOpts().Freestanding &&
       isNamed(this, "main");
2671}

2673bool FunctionDecl::isMSVCRTEntryPoint() const {
const TranslationUnitDecl *TUnit =
    dyn_cast<TranslationUnitDecl>(getDeclContext()->getRedeclContext());
if (!TUnit)
  return false;

// Even though we aren't really targeting MSVCRT if we are freestanding,
// semantic analysis for these functions remains the same.

// MSVCRT entry points only exist on MSVCRT targets.
if (!TUnit->getASTContext().getTargetInfo().getTriple().isOSMSVCRT())
  return false;

// Nameless functions like constructors cannot be entry points.
if (!getIdentifier())
  return false;

return llvm::StringSwitch<bool>(getName())
    .Cases("main",     // an ANSI console app
           "wmain",    // a Unicode console App
           "WinMain",  // an ANSI GUI app
           "wWinMain", // a Unicode GUI app
           "DllMain",  // a DLL
           true)
    .Default(false);
2698}

2700bool FunctionDecl::isReservedGlobalPlacementOperator() const {
assert(getDeclName().getNameKind() == DeclarationName::CXXOperatorName)(static_cast <bool> (getDeclName().getNameKind() == DeclarationName
::CXXOperatorName) ? void (0) : __assert_fail ("getDeclName().getNameKind() == DeclarationName::CXXOperatorName"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 2701, __extension__ __PRETTY_FUNCTION__));
assert(getDeclName().getCXXOverloadedOperator() == OO_New ||(static_cast <bool> (getDeclName().getCXXOverloadedOperator
() == OO_New || getDeclName().getCXXOverloadedOperator() == OO_Delete
 || getDeclName().getCXXOverloadedOperator() == OO_Array_New ||
 getDeclName().getCXXOverloadedOperator() == OO_Array_Delete)
 ? void (0) : __assert_fail ("getDeclName().getCXXOverloadedOperator() == OO_New || getDeclName().getCXXOverloadedOperator() == OO_Delete || getDeclName().getCXXOverloadedOperator() == OO_Array_New || getDeclName().getCXXOverloadedOperator() == OO_Array_Delete"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 2705, __extension__ __PRETTY_FUNCTION__))
       getDeclName().getCXXOverloadedOperator() == OO_Delete ||(static_cast <bool> (getDeclName().getCXXOverloadedOperator
() == OO_New || getDeclName().getCXXOverloadedOperator() == OO_Delete
 || getDeclName().getCXXOverloadedOperator() == OO_Array_New ||
 getDeclName().getCXXOverloadedOperator() == OO_Array_Delete)
 ? void (0) : __assert_fail ("getDeclName().getCXXOverloadedOperator() == OO_New || getDeclName().getCXXOverloadedOperator() == OO_Delete || getDeclName().getCXXOverloadedOperator() == OO_Array_New || getDeclName().getCXXOverloadedOperator() == OO_Array_Delete"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 2705, __extension__ __PRETTY_FUNCTION__))
       getDeclName().getCXXOverloadedOperator() == OO_Array_New ||(static_cast <bool> (getDeclName().getCXXOverloadedOperator
() == OO_New || getDeclName().getCXXOverloadedOperator() == OO_Delete
 || getDeclName().getCXXOverloadedOperator() == OO_Array_New ||
 getDeclName().getCXXOverloadedOperator() == OO_Array_Delete)
 ? void (0) : __assert_fail ("getDeclName().getCXXOverloadedOperator() == OO_New || getDeclName().getCXXOverloadedOperator() == OO_Delete || getDeclName().getCXXOverloadedOperator() == OO_Array_New || getDeclName().getCXXOverloadedOperator() == OO_Array_Delete"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 2705, __extension__ __PRETTY_FUNCTION__))
       getDeclName().getCXXOverloadedOperator() == OO_Array_Delete)(static_cast <bool> (getDeclName().getCXXOverloadedOperator
() == OO_New || getDeclName().getCXXOverloadedOperator() == OO_Delete
 || getDeclName().getCXXOverloadedOperator() == OO_Array_New ||
 getDeclName().getCXXOverloadedOperator() == OO_Array_Delete)
 ? void (0) : __assert_fail ("getDeclName().getCXXOverloadedOperator() == OO_New || getDeclName().getCXXOverloadedOperator() == OO_Delete || getDeclName().getCXXOverloadedOperator() == OO_Array_New || getDeclName().getCXXOverloadedOperator() == OO_Array_Delete"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 2705, __extension__ __PRETTY_FUNCTION__));

if (!getDeclContext()->getRedeclContext()->isTranslationUnit())
  return false;

const auto *proto = getType()->castAs<FunctionProtoType>();
if (proto->getNumParams() != 2 || proto->isVariadic())
  return false;

ASTContext &Context =
  cast<TranslationUnitDecl>(getDeclContext()->getRedeclContext())
    ->getASTContext();

// The result type and first argument type are constant across all
// these operators.  The second argument must be exactly void*.
return (proto->getParamType(1).getCanonicalType() == Context.VoidPtrTy);
2721}

2723bool FunctionDecl::isReplaceableGlobalAllocationFunction(bool *IsAligned) const {
if (getDeclName().getNameKind() != DeclarationName::CXXOperatorName)
  return false;
if (getDeclName().getCXXOverloadedOperator() != OO_New &&
    getDeclName().getCXXOverloadedOperator() != OO_Delete &&
    getDeclName().getCXXOverloadedOperator() != OO_Array_New &&
    getDeclName().getCXXOverloadedOperator() != OO_Array_Delete)
  return false;

if (isa<CXXRecordDecl>(getDeclContext()))
  return false;

// This can only fail for an invalid 'operator new' declaration.
if (!getDeclContext()->getRedeclContext()->isTranslationUnit())
  return false;

const auto *FPT = getType()->castAs<FunctionProtoType>();
if (FPT->getNumParams() == 0 || FPT->getNumParams() > 3 || FPT->isVariadic())
  return false;

// If this is a single-parameter function, it must be a replaceable global
// allocation or deallocation function.
if (FPT->getNumParams() == 1)
  return true;

unsigned Params = 1;
QualType Ty = FPT->getParamType(Params);
ASTContext &Ctx = getASTContext();

auto Consume = [&] {
  ++Params;
  Ty = Params < FPT->getNumParams() ? FPT->getParamType(Params) : QualType();
};

// In C++14, the next parameter can be a 'std::size_t' for sized delete.
bool IsSizedDelete = false;
if (Ctx.getLangOpts().SizedDeallocation &&
    (getDeclName().getCXXOverloadedOperator() == OO_Delete ||
     getDeclName().getCXXOverloadedOperator() == OO_Array_Delete) &&
    Ctx.hasSameType(Ty, Ctx.getSizeType())) {
  IsSizedDelete = true;
  Consume();
}

// In C++17, the next parameter can be a 'std::align_val_t' for aligned
// new/delete.
if (Ctx.getLangOpts().AlignedAllocation && !Ty.isNull() && Ty->isAlignValT()) {
  if (IsAligned)
    *IsAligned = true;
  Consume();
}

// Finally, if this is not a sized delete, the final parameter can
// be a 'const std::nothrow_t&'.
if (!IsSizedDelete && !Ty.isNull() && Ty->isReferenceType()) {
  Ty = Ty->getPointeeType();
  if (Ty.getCVRQualifiers() != Qualifiers::Const)
    return false;
  const CXXRecordDecl *RD = Ty->getAsCXXRecordDecl();
  if (RD && isNamed(RD, "nothrow_t") && RD->isInStdNamespace())
    Consume();
}

return Params == FPT->getNumParams();
2787}

2789bool FunctionDecl::isDestroyingOperatorDelete() const {
// C++ P0722:
//   Within a class C, a single object deallocation function with signature
//     (T, std::destroying_delete_t, <more params>)
//   is a destroying operator delete.
if (!isa<CXXMethodDecl>(this) || getOverloadedOperator() != OO_Delete ||
    getNumParams() < 2)
  return false;

auto *RD = getParamDecl(1)->getType()->getAsCXXRecordDecl();
return RD && RD->isInStdNamespace() && RD->getIdentifier() &&
       RD->getIdentifier()->isStr("destroying_delete_t");
2801}

2803LanguageLinkage FunctionDecl::getLanguageLinkage() const {
return getDeclLanguageLinkage(*this);
2805}

2807bool FunctionDecl::isExternC() const {
return isDeclExternC(*this);
2809}

2811bool FunctionDecl::isInExternCContext() const {
return getLexicalDeclContext()->isExternCContext();
2813}

2815bool FunctionDecl::isInExternCXXContext() const {
return getLexicalDeclContext()->isExternCXXContext();
2817}

2819bool FunctionDecl::isGlobal() const {
if (const auto *Method = dyn_cast<CXXMethodDecl>(this))
  return Method->isStatic();

if (getCanonicalDecl()->getStorageClass() == SC_Static)
  return false;

for (const DeclContext *DC = getDeclContext();
     DC->isNamespace();
     DC = DC->getParent()) {
  if (const auto *Namespace = cast<NamespaceDecl>(DC)) {
    if (!Namespace->getDeclName())
      return false;
    break;
  }
}

return true;
2837}

2839bool FunctionDecl::isNoReturn() const {
if (hasAttr<NoReturnAttr>() || hasAttr<CXX11NoReturnAttr>() ||
    hasAttr<C11NoReturnAttr>())
  return true;

if (auto *FnTy = getType()->getAs<FunctionType>())
  return FnTy->getNoReturnAttr();

return false;
2848}

2850void
2851FunctionDecl::setPreviousDeclaration(FunctionDecl *PrevDecl) {
redeclarable_base::setPreviousDecl(PrevDecl);

if (FunctionTemplateDecl *FunTmpl = getDescribedFunctionTemplate()) {
  FunctionTemplateDecl *PrevFunTmpl
    = PrevDecl? PrevDecl->getDescribedFunctionTemplate() : nullptr;
  assert((!PrevDecl || PrevFunTmpl) && "Function/function template mismatch")(static_cast <bool> ((!PrevDecl || PrevFunTmpl) &&
 "Function/function template mismatch") ? void (0) : __assert_fail
 ("(!PrevDecl || PrevFunTmpl) && \"Function/function template mismatch\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 2857, __extension__ __PRETTY_FUNCTION__));
  FunTmpl->setPreviousDecl(PrevFunTmpl);
}

if (PrevDecl && PrevDecl->IsInline)
  IsInline = true;
2863}

2865FunctionDecl *FunctionDecl::getCanonicalDecl() { return getFirstDecl(); }

2867/// \brief Returns a value indicating whether this function
2868/// corresponds to a builtin function.
2869///
2870/// The function corresponds to a built-in function if it is
2871/// declared at translation scope or within an extern "C" block and
2872/// its name matches with the name of a builtin. The returned value
2873/// will be 0 for functions that do not correspond to a builtin, a
2874/// value of type \c Builtin::ID if in the target-independent range
2875/// \c [1,Builtin::First), or a target-specific builtin value.
2876unsigned FunctionDecl::getBuiltinID() const {
if (!getIdentifier())
  return 0;

unsigned BuiltinID = getIdentifier()->getBuiltinID();
if (!BuiltinID)
  return 0;

ASTContext &Context = getASTContext();
if (Context.getLangOpts().CPlusPlus) {
  const auto *LinkageDecl =
      dyn_cast<LinkageSpecDecl>(getFirstDecl()->getDeclContext());
  // In C++, the first declaration of a builtin is always inside an implicit
  // extern "C".
  // FIXME: A recognised library function may not be directly in an extern "C"
  // declaration, for instance "extern "C" { namespace std { decl } }".
  if (!LinkageDecl) {
    if (BuiltinID == Builtin::BI__GetExceptionInfo &&
        Context.getTargetInfo().getCXXABI().isMicrosoft())
      return Builtin::BI__GetExceptionInfo;
    return 0;
  }
  if (LinkageDecl->getLanguage() != LinkageSpecDecl::lang_c)
    return 0;
}

// If the function is marked "overloadable", it has a different mangled name
// and is not the C library function.
if (hasAttr<OverloadableAttr>())
  return 0;

if (!Context.BuiltinInfo.isPredefinedLibFunction(BuiltinID))
  return BuiltinID;

// This function has the name of a known C library
// function. Determine whether it actually refers to the C library
// function or whether it just has the same name.

// If this is a static function, it's not a builtin.
if (getStorageClass() == SC_Static)
  return 0;

// OpenCL v1.2 s6.9.f - The library functions defined in
// the C99 standard headers are not available.
if (Context.getLangOpts().OpenCL &&
    Context.BuiltinInfo.isPredefinedLibFunction(BuiltinID))
  return 0;

// CUDA does not have device-side standard library. printf and malloc are the
// only special cases that are supported by device-side runtime.
if (Context.getLangOpts().CUDA && hasAttr<CUDADeviceAttr>() &&
    !hasAttr<CUDAHostAttr>() &&
    !(BuiltinID == Builtin::BIprintf || BuiltinID == Builtin::BImalloc))
  return 0;

return BuiltinID;
2932}

2934/// getNumParams - Return the number of parameters this function must have
2935/// based on its FunctionType.  This is the length of the ParamInfo array
2936/// after it has been created.
2937unsigned FunctionDecl::getNumParams() const {
const auto *FPT = getType()->getAs<FunctionProtoType>();
return FPT ? FPT->getNumParams() : 0;
2940}

2942void FunctionDecl::setParams(ASTContext &C,
                           ArrayRef<ParmVarDecl *> NewParamInfo) {
assert(!ParamInfo && "Already has param info!")(static_cast <bool> (!ParamInfo && "Already has param info!"
) ? void (0) : __assert_fail ("!ParamInfo && \"Already has param info!\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 2944, __extension__ __PRETTY_FUNCTION__));
assert(NewParamInfo.size() == getNumParams() && "Parameter count mismatch!")(static_cast <bool> (NewParamInfo.size() == getNumParams
() && "Parameter count mismatch!") ? void (0) : __assert_fail
 ("NewParamInfo.size() == getNumParams() && \"Parameter count mismatch!\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 2945, __extension__ __PRETTY_FUNCTION__));

// Zero params -> null pointer.
if (!NewParamInfo.empty()) {
  ParamInfo = new (C) ParmVarDecl*[NewParamInfo.size()];
  std::copy(NewParamInfo.begin(), NewParamInfo.end(), ParamInfo);
}
2952}

2954/// getMinRequiredArguments - Returns the minimum number of arguments
2955/// needed to call this function. This may be fewer than the number of
2956/// function parameters, if some of the parameters have default
2957/// arguments (in C++) or are parameter packs (C++11).
2958unsigned FunctionDecl::getMinRequiredArguments() const {
if (!getASTContext().getLangOpts().CPlusPlus)
  return getNumParams();

unsigned NumRequiredArgs = 0;
for (auto *Param : parameters())
  if (!Param->isParameterPack() && !Param->hasDefaultArg())
    ++NumRequiredArgs;
return NumRequiredArgs;
2967}

2969/// \brief The combination of the extern and inline keywords under MSVC forces
2970/// the function to be required.
2971///
2972/// Note: This function assumes that we will only get called when isInlined()
2973/// would return true for this FunctionDecl.
2974bool FunctionDecl::isMSExternInline() const {
assert(isInlined() && "expected to get called on an inlined function!")(static_cast <bool> (isInlined() && "expected to get called on an inlined function!"
) ? void (0) : __assert_fail ("isInlined() && \"expected to get called on an inlined function!\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 2975, __extension__ __PRETTY_FUNCTION__));

const ASTContext &Context = getASTContext();
if (!Context.getTargetInfo().getCXXABI().isMicrosoft() &&
    !hasAttr<DLLExportAttr>())
  return false;

for (const FunctionDecl *FD = getMostRecentDecl(); FD;
     FD = FD->getPreviousDecl())
  if (!FD->isImplicit() && FD->getStorageClass() == SC_Extern)
    return true;

return false;
2988}

2990static bool redeclForcesDefMSVC(const FunctionDecl *Redecl) {
if (Redecl->getStorageClass() != SC_Extern)
  return false;

for (const FunctionDecl *FD = Redecl->getPreviousDecl(); FD;
     FD = FD->getPreviousDecl())
  if (!FD->isImplicit() && FD->getStorageClass() == SC_Extern)
    return false;

return true;
3000}

3002static bool RedeclForcesDefC99(const FunctionDecl *Redecl) {
// Only consider file-scope declarations in this test.
if (!Redecl->getLexicalDeclContext()->isTranslationUnit())
  return false;

// Only consider explicit declarations; the presence of a builtin for a
// libcall shouldn't affect whether a definition is externally visible.
if (Redecl->isImplicit())
  return false;

if (!Redecl->isInlineSpecified() || Redecl->getStorageClass() == SC_Extern) 
  return true; // Not an inline definition

return false;
3016}

3018/// \brief For a function declaration in C or C++, determine whether this
3019/// declaration causes the definition to be externally visible.
3020///
3021/// For instance, this determines if adding the current declaration to the set
3022/// of redeclarations of the given functions causes
3023/// isInlineDefinitionExternallyVisible to change from false to true.
3024bool FunctionDecl::doesDeclarationForceExternallyVisibleDefinition() const {
assert(!doesThisDeclarationHaveABody() &&(static_cast <bool> (!doesThisDeclarationHaveABody() &&
 "Must have a declaration without a body.") ? void (0) : __assert_fail
 ("!doesThisDeclarationHaveABody() && \"Must have a declaration without a body.\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 3026, __extension__ __PRETTY_FUNCTION__))
       "Must have a declaration without a body.")(static_cast <bool> (!doesThisDeclarationHaveABody() &&
 "Must have a declaration without a body.") ? void (0) : __assert_fail
 ("!doesThisDeclarationHaveABody() && \"Must have a declaration without a body.\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 3026, __extension__ __PRETTY_FUNCTION__));

ASTContext &Context = getASTContext();

if (Context.getLangOpts().MSVCCompat) {
  const FunctionDecl *Definition;
  if (hasBody(Definition) && Definition->isInlined() &&
      redeclForcesDefMSVC(this))
    return true;
}

if (Context.getLangOpts().GNUInline || hasAttr<GNUInlineAttr>()) {
  // With GNU inlining, a declaration with 'inline' but not 'extern', forces
  // an externally visible definition.
  //
  // FIXME: What happens if gnu_inline gets added on after the first
  // declaration?
  if (!isInlineSpecified() || getStorageClass() == SC_Extern)
    return false;

  const FunctionDecl *Prev = this;
  bool FoundBody = false;
  while ((Prev = Prev->getPreviousDecl())) {
    FoundBody |= Prev->Body.isValid();

    if (Prev->Body) {
      // If it's not the case that both 'inline' and 'extern' are
      // specified on the definition, then it is always externally visible.
      if (!Prev->isInlineSpecified() ||
          Prev->getStorageClass() != SC_Extern)
        return false;
    } else if (Prev->isInlineSpecified() && 
               Prev->getStorageClass() != SC_Extern) {
      return false;
    }
  }
  return FoundBody;
}

if (Context.getLangOpts().CPlusPlus)
  return false;

// C99 6.7.4p6:
//   [...] If all of the file scope declarations for a function in a 
//   translation unit include the inline function specifier without extern, 
//   then the definition in that translation unit is an inline definition.
if (isInlineSpecified() && getStorageClass() != SC_Extern)
  return false;
const FunctionDecl *Prev = this;
bool FoundBody = false;
while ((Prev = Prev->getPreviousDecl())) {
  FoundBody |= Prev->Body.isValid();
  if (RedeclForcesDefC99(Prev))
    return false;
}
return FoundBody;
3082}

3084SourceRange FunctionDecl::getReturnTypeSourceRange() const {
const TypeSourceInfo *TSI = getTypeSourceInfo();
if (!TSI)
  return SourceRange();
FunctionTypeLoc FTL =
    TSI->getTypeLoc().IgnoreParens().getAs<FunctionTypeLoc>();
if (!FTL)
  return SourceRange();

// Skip self-referential return types.
const SourceManager &SM = getASTContext().getSourceManager();
SourceRange RTRange = FTL.getReturnLoc().getSourceRange();
SourceLocation Boundary = getNameInfo().getLocStart();
if (RTRange.isInvalid() || Boundary.isInvalid() ||
    !SM.isBeforeInTranslationUnit(RTRange.getEnd(), Boundary))
  return SourceRange();

return RTRange;
3102}

3104SourceRange FunctionDecl::getExceptionSpecSourceRange() const {
const TypeSourceInfo *TSI = getTypeSourceInfo();
if (!TSI)
  return SourceRange();
FunctionTypeLoc FTL =
  TSI->getTypeLoc().IgnoreParens().getAs<FunctionTypeLoc>();
if (!FTL)
  return SourceRange();

return FTL.getExceptionSpecRange();
3114}

3116const Attr *FunctionDecl::getUnusedResultAttr() const {
QualType RetType = getReturnType();
if (RetType->isRecordType()) {
  if (const auto *Ret =
          dyn_cast_or_null<RecordDecl>(RetType->getAsTagDecl())) {
    if (const auto *R = Ret->getAttr<WarnUnusedResultAttr>())
      return R;
  }
} else if (const auto *ET = RetType->getAs<EnumType>()) {
  if (const EnumDecl *ED = ET->getDecl()) {
    if (const auto *R = ED->getAttr<WarnUnusedResultAttr>())
      return R;
  }
}
return getAttr<WarnUnusedResultAttr>();
3131}

3133/// \brief For an inline function definition in C, or for a gnu_inline function
3134/// in C++, determine whether the definition will be externally visible.
3135///
3136/// Inline function definitions are always available for inlining optimizations.
3137/// However, depending on the language dialect, declaration specifiers, and
3138/// attributes, the definition of an inline function may or may not be
3139/// "externally" visible to other translation units in the program.
3140///
3141/// In C99, inline definitions are not externally visible by default. However,
3142/// if even one of the global-scope declarations is marked "extern inline", the
3143/// inline definition becomes externally visible (C99 6.7.4p6).
3144///
3145/// In GNU89 mode, or if the gnu_inline attribute is attached to the function
3146/// definition, we use the GNU semantics for inline, which are nearly the 
3147/// opposite of C99 semantics. In particular, "inline" by itself will create 
3148/// an externally visible symbol, but "extern inline" will not create an 
3149/// externally visible symbol.
3150bool FunctionDecl::isInlineDefinitionExternallyVisible() const {
assert((doesThisDeclarationHaveABody() || willHaveBody()) &&(static_cast <bool> ((doesThisDeclarationHaveABody() ||
 willHaveBody()) && "Must be a function definition") ?
 void (0) : __assert_fail ("(doesThisDeclarationHaveABody() || willHaveBody()) && \"Must be a function definition\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 3152, __extension__ __PRETTY_FUNCTION__))
       "Must be a function definition")(static_cast <bool> ((doesThisDeclarationHaveABody() ||
 willHaveBody()) && "Must be a function definition") ?
 void (0) : __assert_fail ("(doesThisDeclarationHaveABody() || willHaveBody()) && \"Must be a function definition\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 3152, __extension__ __PRETTY_FUNCTION__));
assert(isInlined() && "Function must be inline")(static_cast <bool> (isInlined() && "Function must be inline"
) ? void (0) : __assert_fail ("isInlined() && \"Function must be inline\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 3153, __extension__ __PRETTY_FUNCTION__));
ASTContext &Context = getASTContext();

if (Context.getLangOpts().GNUInline || hasAttr<GNUInlineAttr>()) {
  // Note: If you change the logic here, please change
  // doesDeclarationForceExternallyVisibleDefinition as well.
  //
  // If it's not the case that both 'inline' and 'extern' are
  // specified on the definition, then this inline definition is
  // externally visible.
  if (!(isInlineSpecified() && getStorageClass() == SC_Extern))
    return true;
  
  // If any declaration is 'inline' but not 'extern', then this definition
  // is externally visible.
  for (auto Redecl : redecls()) {
    if (Redecl->isInlineSpecified() && 
        Redecl->getStorageClass() != SC_Extern)
      return true;
  }    
  
  return false;
}

// The rest of this function is C-only.
assert(!Context.getLangOpts().CPlusPlus &&(static_cast <bool> (!Context.getLangOpts().CPlusPlus &&
 "should not use C inline rules in C++") ? void (0) : __assert_fail
 ("!Context.getLangOpts().CPlusPlus && \"should not use C inline rules in C++\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 3179, __extension__ __PRETTY_FUNCTION__))
       "should not use C inline rules in C++")(static_cast <bool> (!Context.getLangOpts().CPlusPlus &&
 "should not use C inline rules in C++") ? void (0) : __assert_fail
 ("!Context.getLangOpts().CPlusPlus && \"should not use C inline rules in C++\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 3179, __extension__ __PRETTY_FUNCTION__));

// C99 6.7.4p6:
//   [...] If all of the file scope declarations for a function in a 
//   translation unit include the inline function specifier without extern, 
//   then the definition in that translation unit is an inline definition.
for (auto Redecl : redecls()) {
  if (RedeclForcesDefC99(Redecl))
    return true;
}

// C99 6.7.4p6:
//   An inline definition does not provide an external definition for the 
//   function, and does not forbid an external definition in another 
//   translation unit.
return false;
3195}

3197/// getOverloadedOperator - Which C++ overloaded operator this
3198/// function represents, if any.
3199OverloadedOperatorKind FunctionDecl::getOverloadedOperator() const {
if (getDeclName().getNameKind() == DeclarationName::CXXOperatorName)
  return getDeclName().getCXXOverloadedOperator();
else
  return OO_None;
3204}

3206/// getLiteralIdentifier - The literal suffix identifier this function
3207/// represents, if any.
3208const IdentifierInfo *FunctionDecl::getLiteralIdentifier() const {
if (getDeclName().getNameKind() == DeclarationName::CXXLiteralOperatorName)
  return getDeclName().getCXXLiteralIdentifier();
else
  return nullptr;
3213}

3215FunctionDecl::TemplatedKind FunctionDecl::getTemplatedKind() const {
if (TemplateOrSpecialization.isNull())
  return TK_NonTemplate;
if (TemplateOrSpecialization.is<FunctionTemplateDecl *>())
  return TK_FunctionTemplate;
if (TemplateOrSpecialization.is<MemberSpecializationInfo *>())
  return TK_MemberSpecialization;
if (TemplateOrSpecialization.is<FunctionTemplateSpecializationInfo *>())
  return TK_FunctionTemplateSpecialization;
if (TemplateOrSpecialization.is
                             <DependentFunctionTemplateSpecializationInfo*>())
  return TK_DependentFunctionTemplateSpecialization;

llvm_unreachable("Did we miss a TemplateOrSpecialization type?")::llvm::llvm_unreachable_internal("Did we miss a TemplateOrSpecialization type?"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 3228);
3229}

3231FunctionDecl *FunctionDecl::getInstantiatedFromMemberFunction() const {
if (MemberSpecializationInfo *Info = getMemberSpecializationInfo())
  return cast<FunctionDecl>(Info->getInstantiatedFrom());

return nullptr;
3236}

3238MemberSpecializationInfo *FunctionDecl::getMemberSpecializationInfo() const {
return TemplateOrSpecialization.dyn_cast<MemberSpecializationInfo *>();
3240}

3242void 
3243FunctionDecl::setInstantiationOfMemberFunction(ASTContext &C,
                                             FunctionDecl *FD,
                                             TemplateSpecializationKind TSK) {
assert(TemplateOrSpecialization.isNull() &&(static_cast <bool> (TemplateOrSpecialization.isNull() &&
 "Member function is already a specialization") ? void (0) : __assert_fail
 ("TemplateOrSpecialization.isNull() && \"Member function is already a specialization\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 3247, __extension__ __PRETTY_FUNCTION__)) 
       "Member function is already a specialization")(static_cast <bool> (TemplateOrSpecialization.isNull() &&
 "Member function is already a specialization") ? void (0) : __assert_fail
 ("TemplateOrSpecialization.isNull() && \"Member function is already a specialization\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 3247, __extension__ __PRETTY_FUNCTION__));
MemberSpecializationInfo *Info 
  = new (C) MemberSpecializationInfo(FD, TSK);
TemplateOrSpecialization = Info;
3251}

3253FunctionTemplateDecl *FunctionDecl::getDescribedFunctionTemplate() const {
return TemplateOrSpecialization.dyn_cast<FunctionTemplateDecl *>();
3255}

3257void FunctionDecl::setDescribedFunctionTemplate(FunctionTemplateDecl *Template) {
TemplateOrSpecialization = Template;
3259}

3261bool FunctionDecl::isImplicitlyInstantiable() const {
// If the function is invalid, it can't be implicitly instantiated.
if (isInvalidDecl())
  return false;

switch (getTemplateSpecializationKind()) {
case TSK_Undeclared:
case TSK_ExplicitInstantiationDefinition:
  return false;
    
case TSK_ImplicitInstantiation:
  return true;

// It is possible to instantiate TSK_ExplicitSpecialization kind
// if the FunctionDecl has a class scope specialization pattern.
case TSK_ExplicitSpecialization:
  return getClassScopeSpecializationPattern() != nullptr;

case TSK_ExplicitInstantiationDeclaration:
  // Handled below.
  break;
}

// Find the actual template from which we will instantiate.
const FunctionDecl *PatternDecl = getTemplateInstantiationPattern();
bool HasPattern = false;
if (PatternDecl)
  HasPattern = PatternDecl->hasBody(PatternDecl);

// C++0x [temp.explicit]p9:
//   Except for inline functions, other explicit instantiation declarations
//   have the effect of suppressing the implicit instantiation of the entity
//   to which they refer. 
if (!HasPattern || !PatternDecl) 
  return true;

return PatternDecl->isInlined();
3298}

3300bool FunctionDecl::isTemplateInstantiation() const {
switch (getTemplateSpecializationKind()) {
  case TSK_Undeclared:
  case TSK_ExplicitSpecialization:
    return false;      
  case TSK_ImplicitInstantiation:
  case TSK_ExplicitInstantiationDeclaration:
  case TSK_ExplicitInstantiationDefinition:
    return true;
}
llvm_unreachable("All TSK values handled.")::llvm::llvm_unreachable_internal("All TSK values handled.", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 3310);
3311}
 
3313FunctionDecl *FunctionDecl::getTemplateInstantiationPattern() const {
// Handle class scope explicit specialization special case.
if (getTemplateSpecializationKind() == TSK_ExplicitSpecialization) {
  if (auto *Spec = getClassScopeSpecializationPattern())
    return getDefinitionOrSelf(Spec);
  return nullptr;
}

// If this is a generic lambda call operator specialization, its 
// instantiation pattern is always its primary template's pattern
// even if its primary template was instantiated from another 
// member template (which happens with nested generic lambdas).
// Since a lambda's call operator's body is transformed eagerly, 
// we don't have to go hunting for a prototype definition template 
// (i.e. instantiated-from-member-template) to use as an instantiation 
// pattern.

if (isGenericLambdaCallOperatorSpecialization(
        dyn_cast<CXXMethodDecl>(this))) {
  assert(getPrimaryTemplate() && "not a generic lambda call operator?")(static_cast <bool> (getPrimaryTemplate() && "not a generic lambda call operator?"
) ? void (0) : __assert_fail ("getPrimaryTemplate() && \"not a generic lambda call operator?\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 3332, __extension__ __PRETTY_FUNCTION__));
  return getDefinitionOrSelf(getPrimaryTemplate()->getTemplatedDecl());
}

if (FunctionTemplateDecl *Primary = getPrimaryTemplate()) {
  while (Primary->getInstantiatedFromMemberTemplate()) {
    // If we have hit a point where the user provided a specialization of
    // this template, we're done looking.
    if (Primary->isMemberSpecialization())
      break;
    Primary = Primary->getInstantiatedFromMemberTemplate();
  }

  return getDefinitionOrSelf(Primary->getTemplatedDecl());
} 

if (auto *MFD = getInstantiatedFromMemberFunction())
  return getDefinitionOrSelf(MFD);

return nullptr;
3352}

3354FunctionTemplateDecl *FunctionDecl::getPrimaryTemplate() const {
if (FunctionTemplateSpecializationInfo *Info
      = TemplateOrSpecialization
          .dyn_cast<FunctionTemplateSpecializationInfo*>()) {
  return Info->Template.getPointer();
}
return nullptr;
3361}

3363FunctionDecl *FunctionDecl::getClassScopeSpecializationPattern() const {
  return getASTContext().getClassScopeSpecializationPattern(this);
3365}

3367FunctionTemplateSpecializationInfo *
3368FunctionDecl::getTemplateSpecializationInfo() const {
return TemplateOrSpecialization
    .dyn_cast<FunctionTemplateSpecializationInfo *>();
3371}

3373const TemplateArgumentList *
3374FunctionDecl::getTemplateSpecializationArgs() const {
if (FunctionTemplateSpecializationInfo *Info
      = TemplateOrSpecialization
          .dyn_cast<FunctionTemplateSpecializationInfo*>()) {
  return Info->TemplateArguments;
}
return nullptr;
3381}

3383const ASTTemplateArgumentListInfo *
3384FunctionDecl::getTemplateSpecializationArgsAsWritten() const {
if (FunctionTemplateSpecializationInfo *Info
      = TemplateOrSpecialization
          .dyn_cast<FunctionTemplateSpecializationInfo*>()) {
  return Info->TemplateArgumentsAsWritten;
}
return nullptr;
3391}

3393void
3394FunctionDecl::setFunctionTemplateSpecialization(ASTContext &C,
                                              FunctionTemplateDecl *Template,
                                   const TemplateArgumentList *TemplateArgs,
                                              void *InsertPos,
                                              TemplateSpecializationKind TSK,
                      const TemplateArgumentListInfo *TemplateArgsAsWritten,
                                        SourceLocation PointOfInstantiation) {
assert(TSK != TSK_Undeclared &&(static_cast <bool> (TSK != TSK_Undeclared && "Must specify the type of function template specialization"
) ? void (0) : __assert_fail ("TSK != TSK_Undeclared && \"Must specify the type of function template specialization\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 3402, __extension__ __PRETTY_FUNCTION__)) 
       "Must specify the type of function template specialization")(static_cast <bool> (TSK != TSK_Undeclared && "Must specify the type of function template specialization"
) ? void (0) : __assert_fail ("TSK != TSK_Undeclared && \"Must specify the type of function template specialization\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 3402, __extension__ __PRETTY_FUNCTION__));
FunctionTemplateSpecializationInfo *Info
  = TemplateOrSpecialization.dyn_cast<FunctionTemplateSpecializationInfo*>();
if (!Info)
  Info = FunctionTemplateSpecializationInfo::Create(C, this, Template, TSK,
                                                    TemplateArgs,
                                                    TemplateArgsAsWritten,
                                                    PointOfInstantiation);
TemplateOrSpecialization = Info;
Template->addSpecialization(Info, InsertPos);
3412}

3414void
3415FunctionDecl::setDependentTemplateSpecialization(ASTContext &Context,
                                  const UnresolvedSetImpl &Templates,
                           const TemplateArgumentListInfo &TemplateArgs) {
assert(TemplateOrSpecialization.isNull())(static_cast <bool> (TemplateOrSpecialization.isNull())
 ? void (0) : __assert_fail ("TemplateOrSpecialization.isNull()"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 3418, __extension__ __PRETTY_FUNCTION__));
DependentFunctionTemplateSpecializationInfo *Info =
    DependentFunctionTemplateSpecializationInfo::Create(Context, Templates,
                                                        TemplateArgs);
TemplateOrSpecialization = Info;
3423}

3425DependentFunctionTemplateSpecializationInfo *
3426FunctionDecl::getDependentSpecializationInfo() const {
return TemplateOrSpecialization
    .dyn_cast<DependentFunctionTemplateSpecializationInfo *>();
3429}

3431DependentFunctionTemplateSpecializationInfo *
3432DependentFunctionTemplateSpecializationInfo::Create(
  ASTContext &Context, const UnresolvedSetImpl &Ts,
  const TemplateArgumentListInfo &TArgs) {
void *Buffer = Context.Allocate(
    totalSizeToAlloc<TemplateArgumentLoc, FunctionTemplateDecl *>(
        TArgs.size(), Ts.size()));
return new (Buffer) DependentFunctionTemplateSpecializationInfo(Ts, TArgs);
3439}

3441DependentFunctionTemplateSpecializationInfo::
3442DependentFunctionTemplateSpecializationInfo(const UnresolvedSetImpl &Ts,
                                    const TemplateArgumentListInfo &TArgs)
: AngleLocs(TArgs.getLAngleLoc(), TArgs.getRAngleLoc()) {
NumTemplates = Ts.size();
NumArgs = TArgs.size();

FunctionTemplateDecl **TsArray = getTrailingObjects<FunctionTemplateDecl *>();
for (unsigned I = 0, E = Ts.size(); I != E; ++I)
  TsArray[I] = cast<FunctionTemplateDecl>(Ts[I]->getUnderlyingDecl());

TemplateArgumentLoc *ArgsArray = getTrailingObjects<TemplateArgumentLoc>();
for (unsigned I = 0, E = TArgs.size(); I != E; ++I)
  new (&ArgsArray[I]) TemplateArgumentLoc(TArgs[I]);
3455}

3457TemplateSpecializationKind FunctionDecl::getTemplateSpecializationKind() const {
// For a function template specialization, query the specialization
// information object.
FunctionTemplateSpecializationInfo *FTSInfo
  = TemplateOrSpecialization.dyn_cast<FunctionTemplateSpecializationInfo*>();
if (FTSInfo)
  return FTSInfo->getTemplateSpecializationKind();

MemberSpecializationInfo *MSInfo
  = TemplateOrSpecialization.dyn_cast<MemberSpecializationInfo*>();
if (MSInfo)
  return MSInfo->getTemplateSpecializationKind();

return TSK_Undeclared;
3471}

3473void
3474FunctionDecl::setTemplateSpecializationKind(TemplateSpecializationKind TSK,
                                        SourceLocation PointOfInstantiation) {
if (FunctionTemplateSpecializationInfo *FTSInfo
      = TemplateOrSpecialization.dyn_cast<
                                  FunctionTemplateSpecializationInfo*>()) {
  FTSInfo->setTemplateSpecializationKind(TSK);
  if (TSK != TSK_ExplicitSpecialization &&
      PointOfInstantiation.isValid() &&
      FTSInfo->getPointOfInstantiation().isInvalid()) {
    FTSInfo->setPointOfInstantiation(PointOfInstantiation);
    if (ASTMutationListener *L = getASTContext().getASTMutationListener())
      L->InstantiationRequested(this);
  }
} else if (MemberSpecializationInfo *MSInfo
           = TemplateOrSpecialization.dyn_cast<MemberSpecializationInfo*>()) {
  MSInfo->setTemplateSpecializationKind(TSK);
  if (TSK != TSK_ExplicitSpecialization &&
      PointOfInstantiation.isValid() &&
      MSInfo->getPointOfInstantiation().isInvalid()) {
    MSInfo->setPointOfInstantiation(PointOfInstantiation);
    if (ASTMutationListener *L = getASTContext().getASTMutationListener())
      L->InstantiationRequested(this);
  }
} else
  llvm_unreachable("Function cannot have a template specialization kind")::llvm::llvm_unreachable_internal("Function cannot have a template specialization kind"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 3498);
3499}

3501SourceLocation FunctionDecl::getPointOfInstantiation() const {
if (FunctionTemplateSpecializationInfo *FTSInfo
      = TemplateOrSpecialization.dyn_cast<
                                      FunctionTemplateSpecializationInfo*>())
  return FTSInfo->getPointOfInstantiation();
else if (MemberSpecializationInfo *MSInfo
           = TemplateOrSpecialization.dyn_cast<MemberSpecializationInfo*>())
  return MSInfo->getPointOfInstantiation();

return SourceLocation();
3511}

3513bool FunctionDecl::isOutOfLine() const {
if (Decl::isOutOfLine())
  return true;

// If this function was instantiated from a member function of a 
// class template, check whether that member function was defined out-of-line.
if (FunctionDecl *FD = getInstantiatedFromMemberFunction()) {
  const FunctionDecl *Definition;
  if (FD->hasBody(Definition))
    return Definition->isOutOfLine();
}

// If this function was instantiated from a function template,
// check whether that function template was defined out-of-line.
if (FunctionTemplateDecl *FunTmpl = getPrimaryTemplate()) {
  const FunctionDecl *Definition;
  if (FunTmpl->getTemplatedDecl()->hasBody(Definition))
    return Definition->isOutOfLine();
}

return false;
3534}

3536SourceRange FunctionDecl::getSourceRange() const {
return SourceRange(getOuterLocStart(), EndRangeLoc);
3538}

3540unsigned FunctionDecl::getMemoryFunctionKind() const {
IdentifierInfo *FnInfo = getIdentifier();

if (!FnInfo)
  return 0;
  
// Builtin handling.
switch (getBuiltinID()) {
case Builtin::BI__builtin_memset:
case Builtin::BI__builtin___memset_chk:
case Builtin::BImemset:
  return Builtin::BImemset;

case Builtin::BI__builtin_memcpy:
case Builtin::BI__builtin___memcpy_chk:
case Builtin::BImemcpy:
  return Builtin::BImemcpy;

case Builtin::BI__builtin_memmove:
case Builtin::BI__builtin___memmove_chk:
case Builtin::BImemmove:
  return Builtin::BImemmove;

3563//  case Builtin::BIstrlcpy:
3564//  case Builtin::BI__builtin___strlcpy_chk:
3565//    return Builtin::BIstrlcpy;

3567//  case Builtin::BIstrlcat:
3568//  case Builtin::BI__builtin___strlcat_chk:
3569//    return Builtin::BIstrlcat;

case Builtin::BI__builtin_memcmp:
case Builtin::BImemcmp:
  return Builtin::BImemcmp;

case Builtin::BI__builtin_strncpy:
case Builtin::BI__builtin___strncpy_chk:
case Builtin::BIstrncpy:
  return Builtin::BIstrncpy;

case Builtin::BI__builtin_strncmp:
case Builtin::BIstrncmp:
  return Builtin::BIstrncmp;

case Builtin::BI__builtin_strncasecmp:
case Builtin::BIstrncasecmp:
  return Builtin::BIstrncasecmp;

case Builtin::BI__builtin_strncat:
case Builtin::BI__builtin___strncat_chk:
case Builtin::BIstrncat:
  return Builtin::BIstrncat;

case Builtin::BI__builtin_strndup:
case Builtin::BIstrndup:
  return Builtin::BIstrndup;

case Builtin::BI__builtin_strlen:
case Builtin::BIstrlen:
  return Builtin::BIstrlen;

case Builtin::BI__builtin_bzero:
case Builtin::BIbzero:
  return Builtin::BIbzero;

default:
  if (isExternC()) {
    if (FnInfo->isStr("memset"))
      return Builtin::BImemset;
    else if (FnInfo->isStr("memcpy"))
      return Builtin::BImemcpy;
    else if (FnInfo->isStr("memmove"))
      return Builtin::BImemmove;
    else if (FnInfo->isStr("memcmp"))
      return Builtin::BImemcmp;
    else if (FnInfo->isStr("strncpy"))
      return Builtin::BIstrncpy;
    else if (FnInfo->isStr("strncmp"))
      return Builtin::BIstrncmp;
    else if (FnInfo->isStr("strncasecmp"))
      return Builtin::BIstrncasecmp;
    else if (FnInfo->isStr("strncat"))
      return Builtin::BIstrncat;
    else if (FnInfo->isStr("strndup"))
      return Builtin::BIstrndup;
    else if (FnInfo->isStr("strlen"))
      return Builtin::BIstrlen;
    else if (FnInfo->isStr("bzero"))
      return Builtin::BIbzero;
  }
  break;
}
return 0;
3633}

3635unsigned FunctionDecl::getODRHash() {
if (HasODRHash)
  return ODRHash;

if (FunctionDecl *Definition = getDefinition()) {
  if (Definition != this) {
    HasODRHash = true;
    ODRHash = Definition->getODRHash();
    return ODRHash;
  }
}

if (auto *FT = getInstantiatedFromMemberFunction()) {
  HasODRHash = true;
  ODRHash = FT->getODRHash();
  return ODRHash;
}

class ODRHash Hash;
Hash.AddFunctionDecl(this);
HasODRHash = true;
ODRHash = Hash.CalculateHash();
return ODRHash;
3658}

3660//===----------------------------------------------------------------------===//
3661// FieldDecl Implementation
3662//===----------------------------------------------------------------------===//

3664FieldDecl *FieldDecl::Create(const ASTContext &C, DeclContext *DC,
                           SourceLocation StartLoc, SourceLocation IdLoc,
                           IdentifierInfo *Id, QualType T,
                           TypeSourceInfo *TInfo, Expr *BW, bool Mutable,
                           InClassInitStyle InitStyle) {
return new (C, DC) FieldDecl(Decl::Field, DC, StartLoc, IdLoc, Id, T, TInfo,
                             BW, Mutable, InitStyle);
3671}

3673FieldDecl *FieldDecl::CreateDeserialized(ASTContext &C, unsigned ID) {
return new (C, ID) FieldDecl(Field, nullptr, SourceLocation(),
                             SourceLocation(), nullptr, QualType(), nullptr,
                             nullptr, false, ICIS_NoInit);
3677}

3679bool FieldDecl::isAnonymousStructOrUnion() const {
if (!isImplicit() || getDeclName())
  return false;

if (const auto *Record = getType()->getAs<RecordType>())
  return Record->getDecl()->isAnonymousStructOrUnion();

return false;
3687}

3689unsigned FieldDecl::getBitWidthValue(const ASTContext &Ctx) const {
assert(isBitField() && "not a bitfield")(static_cast <bool> (isBitField() && "not a bitfield"
) ? void (0) : __assert_fail ("isBitField() && \"not a bitfield\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 3690, __extension__ __PRETTY_FUNCTION__));
return getBitWidth()->EvaluateKnownConstInt(Ctx).getZExtValue();
3692}

3694bool FieldDecl::isZeroLengthBitField(const ASTContext &Ctx) const {
return isUnnamedBitfield() && !getBitWidth()->isValueDependent() &&
       getBitWidthValue(Ctx) == 0;
3697}

3699unsigned FieldDecl::getFieldIndex() const {
const FieldDecl *Canonical = getCanonicalDecl();
if (Canonical != this)
  return Canonical->getFieldIndex();

if (CachedFieldIndex) return CachedFieldIndex - 1;

unsigned Index = 0;
const RecordDecl *RD = getParent()->getDefinition();
assert(RD && "requested index for field of struct with no definition")(static_cast <bool> (RD && "requested index for field of struct with no definition"
) ? void (0) : __assert_fail ("RD && \"requested index for field of struct with no definition\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 3708, __extension__ __PRETTY_FUNCTION__));

for (auto *Field : RD->fields()) {
  Field->getCanonicalDecl()->CachedFieldIndex = Index + 1;
  ++Index;
}

assert(CachedFieldIndex && "failed to find field in parent")(static_cast <bool> (CachedFieldIndex && "failed to find field in parent"
) ? void (0) : __assert_fail ("CachedFieldIndex && \"failed to find field in parent\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 3715, __extension__ __PRETTY_FUNCTION__));
return CachedFieldIndex - 1;
3717}

3719SourceRange FieldDecl::getSourceRange() const {
const Expr *FinalExpr = getInClassInitializer();
if (!FinalExpr)
  FinalExpr = getBitWidth();
if (FinalExpr)
  return SourceRange(getInnerLocStart(), FinalExpr->getLocEnd());
return DeclaratorDecl::getSourceRange();
3726}

3728void FieldDecl::setCapturedVLAType(const VariableArrayType *VLAType) {
assert((getParent()->isLambda() || getParent()->isCapturedRecord()) &&(static_cast <bool> ((getParent()->isLambda() || getParent
()->isCapturedRecord()) && "capturing type in non-lambda or captured record."
) ? void (0) : __assert_fail ("(getParent()->isLambda() || getParent()->isCapturedRecord()) && \"capturing type in non-lambda or captured record.\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 3730, __extension__ __PRETTY_FUNCTION__))
       "capturing type in non-lambda or captured record.")(static_cast <bool> ((getParent()->isLambda() || getParent
()->isCapturedRecord()) && "capturing type in non-lambda or captured record."
) ? void (0) : __assert_fail ("(getParent()->isLambda() || getParent()->isCapturedRecord()) && \"capturing type in non-lambda or captured record.\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 3730, __extension__ __PRETTY_FUNCTION__));
assert(InitStorage.getInt() == ISK_NoInit &&(static_cast <bool> (InitStorage.getInt() == ISK_NoInit
 && InitStorage.getPointer() == nullptr && "bit width, initializer or captured type already set"
) ? void (0) : __assert_fail ("InitStorage.getInt() == ISK_NoInit && InitStorage.getPointer() == nullptr && \"bit width, initializer or captured type already set\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 3733, __extension__ __PRETTY_FUNCTION__))
       InitStorage.getPointer() == nullptr &&(static_cast <bool> (InitStorage.getInt() == ISK_NoInit
 && InitStorage.getPointer() == nullptr && "bit width, initializer or captured type already set"
) ? void (0) : __assert_fail ("InitStorage.getInt() == ISK_NoInit && InitStorage.getPointer() == nullptr && \"bit width, initializer or captured type already set\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 3733, __extension__ __PRETTY_FUNCTION__))
       "bit width, initializer or captured type already set")(static_cast <bool> (InitStorage.getInt() == ISK_NoInit
 && InitStorage.getPointer() == nullptr && "bit width, initializer or captured type already set"
) ? void (0) : __assert_fail ("InitStorage.getInt() == ISK_NoInit && InitStorage.getPointer() == nullptr && \"bit width, initializer or captured type already set\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 3733, __extension__ __PRETTY_FUNCTION__));
InitStorage.setPointerAndInt(const_cast<VariableArrayType *>(VLAType),
                             ISK_CapturedVLAType);
3736}

3738//===----------------------------------------------------------------------===//
3739// TagDecl Implementation
3740//===----------------------------------------------------------------------===//

3742SourceLocation TagDecl::getOuterLocStart() const {
return getTemplateOrInnerLocStart(this);
3744}

3746SourceRange TagDecl::getSourceRange() const {
SourceLocation RBraceLoc = BraceRange.getEnd();
SourceLocation E = RBraceLoc.isValid() ? RBraceLoc : getLocation();
return SourceRange(getOuterLocStart(), E);
3750}

3752TagDecl *TagDecl::getCanonicalDecl() { return getFirstDecl(); }

3754void TagDecl::setTypedefNameForAnonDecl(TypedefNameDecl *TDD) {
TypedefNameDeclOrQualifier = TDD;
if (const Type *T = getTypeForDecl()) {
  (void)T;
  assert(T->isLinkageValid())(static_cast <bool> (T->isLinkageValid()) ? void (0)
 : __assert_fail ("T->isLinkageValid()", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 3758, __extension__ __PRETTY_FUNCTION__));
}
assert(isLinkageValid())(static_cast <bool> (isLinkageValid()) ? void (0) : __assert_fail
 ("isLinkageValid()", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 3760, __extension__ __PRETTY_FUNCTION__));
3761}

3763void TagDecl::startDefinition() {
IsBeingDefined = true;

if (auto *D = dyn_cast<CXXRecordDecl>(this)) {
  struct CXXRecordDecl::DefinitionData *Data =
    new (getASTContext()) struct CXXRecordDecl::DefinitionData(D);
  for (auto I : redecls())
    cast<CXXRecordDecl>(I)->DefinitionData = Data;
}
3772}

3774void TagDecl::completeDefinition() {
assert((!isa<CXXRecordDecl>(this) ||(static_cast <bool> ((!isa<CXXRecordDecl>(this) ||
 cast<CXXRecordDecl>(this)->hasDefinition()) &&
 "definition completed but not started") ? void (0) : __assert_fail
 ("(!isa<CXXRecordDecl>(this) || cast<CXXRecordDecl>(this)->hasDefinition()) && \"definition completed but not started\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 3777, __extension__ __PRETTY_FUNCTION__))
        cast<CXXRecordDecl>(this)->hasDefinition()) &&(static_cast <bool> ((!isa<CXXRecordDecl>(this) ||
 cast<CXXRecordDecl>(this)->hasDefinition()) &&
 "definition completed but not started") ? void (0) : __assert_fail
 ("(!isa<CXXRecordDecl>(this) || cast<CXXRecordDecl>(this)->hasDefinition()) && \"definition completed but not started\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 3777, __extension__ __PRETTY_FUNCTION__))
       "definition completed but not started")(static_cast <bool> ((!isa<CXXRecordDecl>(this) ||
 cast<CXXRecordDecl>(this)->hasDefinition()) &&
 "definition completed but not started") ? void (0) : __assert_fail
 ("(!isa<CXXRecordDecl>(this) || cast<CXXRecordDecl>(this)->hasDefinition()) && \"definition completed but not started\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 3777, __extension__ __PRETTY_FUNCTION__));

IsCompleteDefinition = true;
IsBeingDefined = false;

if (ASTMutationListener *L = getASTMutationListener())
  L->CompletedTagDefinition(this);
3784}

3786TagDecl *TagDecl::getDefinition() const {
if (isCompleteDefinition())
  return const_cast<TagDecl *>(this);

// If it's possible for us to have an out-of-date definition, check now.
if (MayHaveOutOfDateDef) {
  if (IdentifierInfo *II = getIdentifier()) {
    if (II->isOutOfDate()) {
      updateOutOfDate(*II);
    }
  }
}

if (const auto *CXXRD = dyn_cast<CXXRecordDecl>(this))
  return CXXRD->getDefinition();

for (auto R : redecls())
  if (R->isCompleteDefinition())
    return R;

return nullptr;
3807}

3809void TagDecl::setQualifierInfo(NestedNameSpecifierLoc QualifierLoc) {
if (QualifierLoc) {
  // Make sure the extended qualifier info is allocated.
  if (!hasExtInfo())
    TypedefNameDeclOrQualifier = new (getASTContext()) ExtInfo;
  // Set qualifier info.
  getExtInfo()->QualifierLoc = QualifierLoc;
} else {
  // Here Qualifier == 0, i.e., we are removing the qualifier (if any).
  if (hasExtInfo()) {
    if (getExtInfo()->NumTemplParamLists == 0) {
      getASTContext().Deallocate(getExtInfo());
      TypedefNameDeclOrQualifier = (TypedefNameDecl *)nullptr;
    }
    else
      getExtInfo()->QualifierLoc = QualifierLoc;
  }
}
3827}

3829void TagDecl::setTemplateParameterListsInfo(
  ASTContext &Context, ArrayRef<TemplateParameterList *> TPLists) {
assert(!TPLists.empty())(static_cast <bool> (!TPLists.empty()) ? void (0) : __assert_fail
 ("!TPLists.empty()", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 3831, __extension__ __PRETTY_FUNCTION__));
// Make sure the extended decl info is allocated.
if (!hasExtInfo())
  // Allocate external info struct.
  TypedefNameDeclOrQualifier = new (getASTContext()) ExtInfo;
// Set the template parameter lists info.
getExtInfo()->setTemplateParameterListsInfo(Context, TPLists);
3838}

3840//===----------------------------------------------------------------------===//
3841// EnumDecl Implementation
3842//===----------------------------------------------------------------------===//

3844void EnumDecl::anchor() {}

3846EnumDecl *EnumDecl::Create(ASTContext &C, DeclContext *DC,
                         SourceLocation StartLoc, SourceLocation IdLoc,
                         IdentifierInfo *Id,
                         EnumDecl *PrevDecl, bool IsScoped,
                         bool IsScopedUsingClassTag, bool IsFixed) {
auto *Enum = new (C, DC) EnumDecl(C, DC, StartLoc, IdLoc, Id, PrevDecl,
                                  IsScoped, IsScopedUsingClassTag, IsFixed);
Enum->MayHaveOutOfDateDef = C.getLangOpts().Modules;
C.getTypeDeclType(Enum, PrevDecl);
return Enum;
3856}

3858EnumDecl *EnumDecl::CreateDeserialized(ASTContext &C, unsigned ID) {
EnumDecl *Enum =
    new (C, ID) EnumDecl(C, nullptr, SourceLocation(), SourceLocation(),
                         nullptr, nullptr, false, false, false);
Enum->MayHaveOutOfDateDef = C.getLangOpts().Modules;
return Enum;
3864}

3866SourceRange EnumDecl::getIntegerTypeRange() const {
if (const TypeSourceInfo *TI = getIntegerTypeSourceInfo())
  return TI->getTypeLoc().getSourceRange();
return SourceRange();
3870}

3872void EnumDecl::completeDefinition(QualType NewType,
                                QualType NewPromotionType,
                                unsigned NumPositiveBits,
                                unsigned NumNegativeBits) {
assert(!isCompleteDefinition() && "Cannot redefine enums!")(static_cast <bool> (!isCompleteDefinition() &&
 "Cannot redefine enums!") ? void (0) : __assert_fail ("!isCompleteDefinition() && \"Cannot redefine enums!\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 3876, __extension__ __PRETTY_FUNCTION__));
if (!IntegerType)
  IntegerType = NewType.getTypePtr();
PromotionType = NewPromotionType;
setNumPositiveBits(NumPositiveBits);
setNumNegativeBits(NumNegativeBits);
TagDecl::completeDefinition();
3883}

3885bool EnumDecl::isClosed() const {
if (const auto *A = getAttr<EnumExtensibilityAttr>())
  return A->getExtensibility() == EnumExtensibilityAttr::Closed;
return true;
3889}

3891bool EnumDecl::isClosedFlag() const {
return isClosed() && hasAttr<FlagEnumAttr>();
3893}

3895bool EnumDecl::isClosedNonFlag() const {
return isClosed() && !hasAttr<FlagEnumAttr>();
3897}

3899TemplateSpecializationKind EnumDecl::getTemplateSpecializationKind() const {
if (MemberSpecializationInfo *MSI = getMemberSpecializationInfo())
  return MSI->getTemplateSpecializationKind();

return TSK_Undeclared;
3904}

3906void EnumDecl::setTemplateSpecializationKind(TemplateSpecializationKind TSK,
                                       SourceLocation PointOfInstantiation) {
MemberSpecializationInfo *MSI = getMemberSpecializationInfo();
assert(MSI && "Not an instantiated member enumeration?")(static_cast <bool> (MSI && "Not an instantiated member enumeration?"
) ? void (0) : __assert_fail ("MSI && \"Not an instantiated member enumeration?\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 3909, __extension__ __PRETTY_FUNCTION__));
MSI->setTemplateSpecializationKind(TSK);
if (TSK != TSK_ExplicitSpecialization &&
    PointOfInstantiation.isValid() &&
    MSI->getPointOfInstantiation().isInvalid())
  MSI->setPointOfInstantiation(PointOfInstantiation);
3915}

3917EnumDecl *EnumDecl::getTemplateInstantiationPattern() const {
if (MemberSpecializationInfo *MSInfo = getMemberSpecializationInfo()) {
  if (isTemplateInstantiation(MSInfo->getTemplateSpecializationKind())) {
    EnumDecl *ED = getInstantiatedFromMemberEnum();
    while (auto *NewED = ED->getInstantiatedFromMemberEnum())
      ED = NewED;
    return getDefinitionOrSelf(ED);
  }
}

assert(!isTemplateInstantiation(getTemplateSpecializationKind()) &&(static_cast <bool> (!isTemplateInstantiation(getTemplateSpecializationKind
()) && "couldn't find pattern for enum instantiation"
) ? void (0) : __assert_fail ("!isTemplateInstantiation(getTemplateSpecializationKind()) && \"couldn't find pattern for enum instantiation\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 3928, __extension__ __PRETTY_FUNCTION__))
       "couldn't find pattern for enum instantiation")(static_cast <bool> (!isTemplateInstantiation(getTemplateSpecializationKind
()) && "couldn't find pattern for enum instantiation"
) ? void (0) : __assert_fail ("!isTemplateInstantiation(getTemplateSpecializationKind()) && \"couldn't find pattern for enum instantiation\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 3928, __extension__ __PRETTY_FUNCTION__));
return nullptr;
3930}

3932EnumDecl *EnumDecl::getInstantiatedFromMemberEnum() const {
if (SpecializationInfo)
  return cast<EnumDecl>(SpecializationInfo->getInstantiatedFrom());

return nullptr;
3937}

3939void EnumDecl::setInstantiationOfMemberEnum(ASTContext &C, EnumDecl *ED,
                                          TemplateSpecializationKind TSK) {
assert(!SpecializationInfo && "Member enum is already a specialization")(static_cast <bool> (!SpecializationInfo && "Member enum is already a specialization"
) ? void (0) : __assert_fail ("!SpecializationInfo && \"Member enum is already a specialization\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 3941, __extension__ __PRETTY_FUNCTION__));
SpecializationInfo = new (C) MemberSpecializationInfo(ED, TSK);
3943}

3945//===----------------------------------------------------------------------===//
3946// RecordDecl Implementation
3947//===----------------------------------------------------------------------===//

3949RecordDecl::RecordDecl(Kind DK, TagKind TK, const ASTContext &C,
                     DeclContext *DC, SourceLocation StartLoc,
                     SourceLocation IdLoc, IdentifierInfo *Id,
                     RecordDecl *PrevDecl)
  : TagDecl(DK, TK, C, DC, IdLoc, Id, PrevDecl, StartLoc),
    HasFlexibleArrayMember(false), AnonymousStructOrUnion(false),
    HasObjectMember(false), HasVolatileMember(false),
    LoadedFieldsFromExternalStorage(false),
    NonTrivialToPrimitiveDefaultInitialize(false),
    NonTrivialToPrimitiveCopy(false), NonTrivialToPrimitiveDestroy(false),
    ParamDestroyedInCallee(false), ArgPassingRestrictions(APK_CanPassInRegs) {
assert(classof(static_cast<Decl*>(this)) && "Invalid Kind!")(static_cast <bool> (classof(static_cast<Decl*>(this
)) && "Invalid Kind!") ? void (0) : __assert_fail ("classof(static_cast<Decl*>(this)) && \"Invalid Kind!\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 3960, __extension__ __PRETTY_FUNCTION__));
3961}

3963RecordDecl *RecordDecl::Create(const ASTContext &C, TagKind TK, DeclContext *DC,
                             SourceLocation StartLoc, SourceLocation IdLoc,
                             IdentifierInfo *Id, RecordDecl* PrevDecl) {
RecordDecl *R = new (C, DC) RecordDecl(Record, TK, C, DC,
                                       StartLoc, IdLoc, Id, PrevDecl);
R->MayHaveOutOfDateDef = C.getLangOpts().Modules;

C.getTypeDeclType(R, PrevDecl);
return R;
3972}

3974RecordDecl *RecordDecl::CreateDeserialized(const ASTContext &C, unsigned ID) {
RecordDecl *R =
    new (C, ID) RecordDecl(Record, TTK_Struct, C, nullptr, SourceLocation(),
                           SourceLocation(), nullptr, nullptr);
R->MayHaveOutOfDateDef = C.getLangOpts().Modules;
return R;
3980}

3982bool RecordDecl::isInjectedClassName() const {
return isImplicit() && getDeclName() && getDeclContext()->isRecord() &&
  cast<RecordDecl>(getDeclContext())->getDeclName() == getDeclName();
3985}

3987bool RecordDecl::isLambda() const {
if (auto RD = dyn_cast<CXXRecordDecl>(this))
  return RD->isLambda();
return false;
3991}

3993bool RecordDecl::isCapturedRecord() const {
return hasAttr<CapturedRecordAttr>();
3995}

3997void RecordDecl::setCapturedRecord() {
addAttr(CapturedRecordAttr::CreateImplicit(getASTContext()));
1
Calling 'CapturedRecordAttr::CreateImplicit'→
3999}

4001RecordDecl::field_iterator RecordDecl::field_begin() const {
if (hasExternalLexicalStorage() && !LoadedFieldsFromExternalStorage)
  LoadFieldsFromExternalStorage();

return field_iterator(decl_iterator(FirstDecl));
4006}

4008/// completeDefinition - Notes that the definition of this type is now
4009/// complete.
4010void RecordDecl::completeDefinition() {
assert(!isCompleteDefinition() && "Cannot redefine record!")(static_cast <bool> (!isCompleteDefinition() &&
 "Cannot redefine record!") ? void (0) : __assert_fail ("!isCompleteDefinition() && \"Cannot redefine record!\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 4011, __extension__ __PRETTY_FUNCTION__));
TagDecl::completeDefinition();
4013}

4015/// isMsStruct - Get whether or not this record uses ms_struct layout.
4016/// This which can be turned on with an attribute, pragma, or the
4017/// -mms-bitfields command-line option.
4018bool RecordDecl::isMsStruct(const ASTContext &C) const {
return hasAttr<MSStructAttr>() || C.getLangOpts().MSBitfields == 1;
4020}

4022void RecordDecl::LoadFieldsFromExternalStorage() const {
ExternalASTSource *Source = getASTContext().getExternalSource();
assert(hasExternalLexicalStorage() && Source && "No external storage?")(static_cast <bool> (hasExternalLexicalStorage() &&
 Source && "No external storage?") ? void (0) : __assert_fail
 ("hasExternalLexicalStorage() && Source && \"No external storage?\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 4024, __extension__ __PRETTY_FUNCTION__));

// Notify that we have a RecordDecl doing some initialization.
ExternalASTSource::Deserializing TheFields(Source);

SmallVector<Decl*, 64> Decls;
LoadedFieldsFromExternalStorage = true;
Source->FindExternalLexicalDecls(this, [](Decl::Kind K) {
  return FieldDecl::classofKind(K) || IndirectFieldDecl::classofKind(K);
}, Decls);

4035#ifndef NDEBUG
// Check that all decls we got were FieldDecls.
for (unsigned i=0, e=Decls.size(); i != e; ++i)
  assert(isa<FieldDecl>(Decls[i]) || isa<IndirectFieldDecl>(Decls[i]))(static_cast <bool> (isa<FieldDecl>(Decls[i]) || isa
<IndirectFieldDecl>(Decls[i])) ? void (0) : __assert_fail
 ("isa<FieldDecl>(Decls[i]) || isa<IndirectFieldDecl>(Decls[i])"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 4038, __extension__ __PRETTY_FUNCTION__));
4039#endif

if (Decls.empty())
  return;

std::tie(FirstDecl, LastDecl) = BuildDeclChain(Decls,
                                               /*FieldsAlreadyLoaded=*/false);
4046}

4048bool RecordDecl::mayInsertExtraPadding(bool EmitRemark) const {
ASTContext &Context = getASTContext();
const SanitizerMask EnabledAsanMask = Context.getLangOpts().Sanitize.Mask &
    (SanitizerKind::Address | SanitizerKind::KernelAddress);
if (!EnabledAsanMask || !Context.getLangOpts().SanitizeAddressFieldPadding)
  return false;
const auto &Blacklist = Context.getSanitizerBlacklist();
const auto *CXXRD = dyn_cast<CXXRecordDecl>(this);
// We may be able to relax some of these requirements.
int ReasonToReject = -1;
if (!CXXRD || CXXRD->isExternCContext())
  ReasonToReject = 0;  // is not C++.
else if (CXXRD->hasAttr<PackedAttr>())
  ReasonToReject = 1;  // is packed.
else if (CXXRD->isUnion())
  ReasonToReject = 2;  // is a union.
else if (CXXRD->isTriviallyCopyable())
  ReasonToReject = 3;  // is trivially copyable.
else if (CXXRD->hasTrivialDestructor())
  ReasonToReject = 4;  // has trivial destructor.
else if (CXXRD->isStandardLayout())
  ReasonToReject = 5;  // is standard layout.
else if (Blacklist.isBlacklistedLocation(EnabledAsanMask, getLocation(),
                                         "field-padding"))
  ReasonToReject = 6;  // is in a blacklisted file.
else if (Blacklist.isBlacklistedType(EnabledAsanMask,
                                     getQualifiedNameAsString(),
                                     "field-padding"))
  ReasonToReject = 7;  // is blacklisted.

if (EmitRemark) {
  if (ReasonToReject >= 0)
    Context.getDiagnostics().Report(
        getLocation(),
        diag::remark_sanitize_address_insert_extra_padding_rejected)
        << getQualifiedNameAsString() << ReasonToReject;
  else
    Context.getDiagnostics().Report(
        getLocation(),
        diag::remark_sanitize_address_insert_extra_padding_accepted)
        << getQualifiedNameAsString();
}
return ReasonToReject < 0;
4091}

4093const FieldDecl *RecordDecl::findFirstNamedDataMember() const {
for (const auto *I : fields()) {
  if (I->getIdentifier())
    return I;

  if (const auto *RT = I->getType()->getAs<RecordType>())
    if (const FieldDecl *NamedDataMember =
            RT->getDecl()->findFirstNamedDataMember())
      return NamedDataMember;
}

// We didn't find a named data member.
return nullptr;
4106}

4108//===----------------------------------------------------------------------===//
4109// BlockDecl Implementation
4110//===----------------------------------------------------------------------===//

4112void BlockDecl::setParams(ArrayRef<ParmVarDecl *> NewParamInfo) {
assert(!ParamInfo && "Already has param info!")(static_cast <bool> (!ParamInfo && "Already has param info!"
) ? void (0) : __assert_fail ("!ParamInfo && \"Already has param info!\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 4113, __extension__ __PRETTY_FUNCTION__));

// Zero params -> null pointer.
if (!NewParamInfo.empty()) {
  NumParams = NewParamInfo.size();
  ParamInfo = new (getASTContext()) ParmVarDecl*[NewParamInfo.size()];
  std::copy(NewParamInfo.begin(), NewParamInfo.end(), ParamInfo);
}
4121}

4123void BlockDecl::setCaptures(ASTContext &Context, ArrayRef<Capture> Captures,
                          bool CapturesCXXThis) {
this->CapturesCXXThis = CapturesCXXThis;
this->NumCaptures = Captures.size();

if (Captures.empty()) {
  this->Captures = nullptr;
  return;
}

this->Captures = Captures.copy(Context).data();
4134}

4136bool BlockDecl::capturesVariable(const VarDecl *variable) const {
for (const auto &I : captures())
  // Only auto vars can be captured, so no redeclaration worries.
  if (I.getVariable() == variable)
    return true;

return false;
4143}

4145SourceRange BlockDecl::getSourceRange() const {
return SourceRange(getLocation(), Body? Body->getLocEnd() : getLocation());
4147}

4149//===----------------------------------------------------------------------===//
4150// Other Decl Allocation/Deallocation Method Implementations
4151//===----------------------------------------------------------------------===//

4153void TranslationUnitDecl::anchor() {}

4155TranslationUnitDecl *TranslationUnitDecl::Create(ASTContext &C) {
return new (C, (DeclContext *)nullptr) TranslationUnitDecl(C);
4157}

4159void PragmaCommentDecl::anchor() {}

4161PragmaCommentDecl *PragmaCommentDecl::Create(const ASTContext &C,
                                           TranslationUnitDecl *DC,
                                           SourceLocation CommentLoc,
                                           PragmaMSCommentKind CommentKind,
                                           StringRef Arg) {
PragmaCommentDecl *PCD =
    new (C, DC, additionalSizeToAlloc<char>(Arg.size() + 1))
        PragmaCommentDecl(DC, CommentLoc, CommentKind);
memcpy(PCD->getTrailingObjects<char>(), Arg.data(), Arg.size());
PCD->getTrailingObjects<char>()[Arg.size()] = '\0';
return PCD;
4172}

4174PragmaCommentDecl *PragmaCommentDecl::CreateDeserialized(ASTContext &C,
                                                       unsigned ID,
                                                       unsigned ArgSize) {
return new (C, ID, additionalSizeToAlloc<char>(ArgSize + 1))
    PragmaCommentDecl(nullptr, SourceLocation(), PCK_Unknown);
4179}

4181void PragmaDetectMismatchDecl::anchor() {}

4183PragmaDetectMismatchDecl *
4184PragmaDetectMismatchDecl::Create(const ASTContext &C, TranslationUnitDecl *DC,
                               SourceLocation Loc, StringRef Name,
                               StringRef Value) {
size_t ValueStart = Name.size() + 1;
PragmaDetectMismatchDecl *PDMD =
    new (C, DC, additionalSizeToAlloc<char>(ValueStart + Value.size() + 1))
        PragmaDetectMismatchDecl(DC, Loc, ValueStart);
memcpy(PDMD->getTrailingObjects<char>(), Name.data(), Name.size());
PDMD->getTrailingObjects<char>()[Name.size()] = '\0';
memcpy(PDMD->getTrailingObjects<char>() + ValueStart, Value.data(),
       Value.size());
PDMD->getTrailingObjects<char>()[ValueStart + Value.size()] = '\0';
return PDMD;
4197}

4199PragmaDetectMismatchDecl *
4200PragmaDetectMismatchDecl::CreateDeserialized(ASTContext &C, unsigned ID,
                                           unsigned NameValueSize) {
return new (C, ID, additionalSizeToAlloc<char>(NameValueSize + 1))
    PragmaDetectMismatchDecl(nullptr, SourceLocation(), 0);
4204}

4206void ExternCContextDecl::anchor() {}

4208ExternCContextDecl *ExternCContextDecl::Create(const ASTContext &C,
                                             TranslationUnitDecl *DC) {
return new (C, DC) ExternCContextDecl(DC);
4211}

4213void LabelDecl::anchor() {}

4215LabelDecl *LabelDecl::Create(ASTContext &C, DeclContext *DC,
                           SourceLocation IdentL, IdentifierInfo *II) {
return new (C, DC) LabelDecl(DC, IdentL, II, nullptr, IdentL);
4218}

4220LabelDecl *LabelDecl::Create(ASTContext &C, DeclContext *DC,
                           SourceLocation IdentL, IdentifierInfo *II,
                           SourceLocation GnuLabelL) {
assert(GnuLabelL != IdentL && "Use this only for GNU local labels")(static_cast <bool> (GnuLabelL != IdentL && "Use this only for GNU local labels"
) ? void (0) : __assert_fail ("GnuLabelL != IdentL && \"Use this only for GNU local labels\""
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 4223, __extension__ __PRETTY_FUNCTION__));
return new (C, DC) LabelDecl(DC, IdentL, II, nullptr, GnuLabelL);
4225}

4227LabelDecl *LabelDecl::CreateDeserialized(ASTContext &C, unsigned ID) {
return new (C, ID) LabelDecl(nullptr, SourceLocation(), nullptr, nullptr,
                             SourceLocation());
4230}

4232void LabelDecl::setMSAsmLabel(StringRef Name) {
char *Buffer = new (getASTContext(), 1) char[Name.size() + 1];
memcpy(Buffer, Name.data(), Name.size());
Buffer[Name.size()] = '\0';
MSAsmName = Buffer;
4237}

4239void ValueDecl::anchor() {}

4241bool ValueDecl::isWeak() const {
for (const auto *I : attrs())
  if (isa<WeakAttr>(I) || isa<WeakRefAttr>(I))
    return true;

return isWeakImported();
4247}

4249void ImplicitParamDecl::anchor() {}

4251ImplicitParamDecl *ImplicitParamDecl::Create(ASTContext &C, DeclContext *DC,
                                           SourceLocation IdLoc,
                                           IdentifierInfo *Id, QualType Type,
                                           ImplicitParamKind ParamKind) {
return new (C, DC) ImplicitParamDecl(C, DC, IdLoc, Id, Type, ParamKind);
4256}

4258ImplicitParamDecl *ImplicitParamDecl::Create(ASTContext &C, QualType Type,
                                           ImplicitParamKind ParamKind) {
return new (C, nullptr) ImplicitParamDecl(C, Type, ParamKind);
4261}

4263ImplicitParamDecl *ImplicitParamDecl::CreateDeserialized(ASTContext &C,
                                                       unsigned ID) {
return new (C, ID) ImplicitParamDecl(C, QualType(), ImplicitParamKind::Other);
4266}

4268FunctionDecl *FunctionDecl::Create(ASTContext &C, DeclContext *DC,
                                 SourceLocation StartLoc,
                                 const DeclarationNameInfo &NameInfo,
                                 QualType T, TypeSourceInfo *TInfo,
                                 StorageClass SC,
                                 bool isInlineSpecified,
                                 bool hasWrittenPrototype,
                                 bool isConstexprSpecified) {
FunctionDecl *New =
    new (C, DC) FunctionDecl(Function, C, DC, StartLoc, NameInfo, T, TInfo,
                             SC, isInlineSpecified, isConstexprSpecified);
New->HasWrittenPrototype = hasWrittenPrototype;
return New;
4281}

4283FunctionDecl *FunctionDecl::CreateDeserialized(ASTContext &C, unsigned ID) {
return new (C, ID) FunctionDecl(Function, C, nullptr, SourceLocation(),
                                DeclarationNameInfo(), QualType(), nullptr,
                                SC_None, false, false);
4287}

4289BlockDecl *BlockDecl::Create(ASTContext &C, DeclContext *DC, SourceLocation L) {
return new (C, DC) BlockDecl(DC, L);
4291}

4293BlockDecl *BlockDecl::CreateDeserialized(ASTContext &C, unsigned ID) {
return new (C, ID) BlockDecl(nullptr, SourceLocation());
4295}

4297CapturedDecl::CapturedDecl(DeclContext *DC, unsigned NumParams)
  : Decl(Captured, DC, SourceLocation()), DeclContext(Captured),
    NumParams(NumParams), ContextParam(0), BodyAndNothrow(nullptr, false) {}

4301CapturedDecl *CapturedDecl::Create(ASTContext &C, DeclContext *DC,
                                 unsigned NumParams) {
return new (C, DC, additionalSizeToAlloc<ImplicitParamDecl *>(NumParams))
    CapturedDecl(DC, NumParams);
4305}

4307CapturedDecl *CapturedDecl::CreateDeserialized(ASTContext &C, unsigned ID,
                                             unsigned NumParams) {
return new (C, ID, additionalSizeToAlloc<ImplicitParamDecl *>(NumParams))
    CapturedDecl(nullptr, NumParams);
4311}

4313Stmt *CapturedDecl::getBody() const { return BodyAndNothrow.getPointer(); }
4314void CapturedDecl::setBody(Stmt *B) { BodyAndNothrow.setPointer(B); }

4316bool CapturedDecl::isNothrow() const { return BodyAndNothrow.getInt(); }
4317void CapturedDecl::setNothrow(bool Nothrow) { BodyAndNothrow.setInt(Nothrow); }

4319EnumConstantDecl *EnumConstantDecl::Create(ASTContext &C, EnumDecl *CD,
                                         SourceLocation L,
                                         IdentifierInfo *Id, QualType T,
                                         Expr *E, const llvm::APSInt &V) {
return new (C, CD) EnumConstantDecl(CD, L, Id, T, E, V);
4324}

4326EnumConstantDecl *
4327EnumConstantDecl::CreateDeserialized(ASTContext &C, unsigned ID) {
return new (C, ID) EnumConstantDecl(nullptr, SourceLocation(), nullptr,
                                    QualType(), nullptr, llvm::APSInt());
4330}

4332void IndirectFieldDecl::anchor() {}

4334IndirectFieldDecl::IndirectFieldDecl(ASTContext &C, DeclContext *DC,
                                   SourceLocation L, DeclarationName N,
                                   QualType T,
                                   MutableArrayRef<NamedDecl *> CH)
  : ValueDecl(IndirectField, DC, L, N, T), Chaining(CH.data()),
    ChainingSize(CH.size()) {
// In C++, indirect field declarations conflict with tag declarations in the
// same scope, so add them to IDNS_Tag so that tag redeclaration finds them.
if (C.getLangOpts().CPlusPlus)
  IdentifierNamespace |= IDNS_Tag;
4344}

4346IndirectFieldDecl *
4347IndirectFieldDecl::Create(ASTContext &C, DeclContext *DC, SourceLocation L,
                        IdentifierInfo *Id, QualType T,
                        llvm::MutableArrayRef<NamedDecl *> CH) {
return new (C, DC) IndirectFieldDecl(C, DC, L, Id, T, CH);
4351}

4353IndirectFieldDecl *IndirectFieldDecl::CreateDeserialized(ASTContext &C,
                                                       unsigned ID) {
return new (C, ID) IndirectFieldDecl(C, nullptr, SourceLocation(),
                                     DeclarationName(), QualType(), None);
4357}

4359SourceRange EnumConstantDecl::getSourceRange() const {
SourceLocation End = getLocation();
if (Init)
  End = Init->getLocEnd();
return SourceRange(getLocation(), End);
4364}

4366void TypeDecl::anchor() {}

4368TypedefDecl *TypedefDecl::Create(ASTContext &C, DeclContext *DC,
                               SourceLocation StartLoc, SourceLocation IdLoc,
                               IdentifierInfo *Id, TypeSourceInfo *TInfo) {
return new (C, DC) TypedefDecl(C, DC, StartLoc, IdLoc, Id, TInfo);
4372}

4374void TypedefNameDecl::anchor() {}

4376TagDecl *TypedefNameDecl::getAnonDeclWithTypedefName(bool AnyRedecl) const {
if (auto *TT = getTypeSourceInfo()->getType()->getAs<TagType>()) {
  auto *OwningTypedef = TT->getDecl()->getTypedefNameForAnonDecl();
  auto *ThisTypedef = this;
  if (AnyRedecl && OwningTypedef) {
    OwningTypedef = OwningTypedef->getCanonicalDecl();
    ThisTypedef = ThisTypedef->getCanonicalDecl();
  }
  if (OwningTypedef == ThisTypedef)
    return TT->getDecl();
}

return nullptr;
4389}

4391bool TypedefNameDecl::isTransparentTagSlow() const {
auto determineIsTransparent = [&]() {
  if (auto *TT = getUnderlyingType()->getAs<TagType>()) {
    if (auto *TD = TT->getDecl()) {
      if (TD->getName() != getName())
        return false;
      SourceLocation TTLoc = getLocation();
      SourceLocation TDLoc = TD->getLocation();
      if (!TTLoc.isMacroID() || !TDLoc.isMacroID())
        return false;
      SourceManager &SM = getASTContext().getSourceManager();
      return SM.getSpellingLoc(TTLoc) == SM.getSpellingLoc(TDLoc);
    }
  }
  return false;
};

bool isTransparent = determineIsTransparent();
MaybeModedTInfo.setInt((isTransparent << 1) | 1);
return isTransparent;
4411}

4413TypedefDecl *TypedefDecl::CreateDeserialized(ASTContext &C, unsigned ID) {
return new (C, ID) TypedefDecl(C, nullptr, SourceLocation(), SourceLocation(),
                               nullptr, nullptr);
4416}

4418TypeAliasDecl *TypeAliasDecl::Create(ASTContext &C, DeclContext *DC,
                                   SourceLocation StartLoc,
                                   SourceLocation IdLoc, IdentifierInfo *Id,
                                   TypeSourceInfo *TInfo) {
return new (C, DC) TypeAliasDecl(C, DC, StartLoc, IdLoc, Id, TInfo);
4423}

4425TypeAliasDecl *TypeAliasDecl::CreateDeserialized(ASTContext &C, unsigned ID) {
return new (C, ID) TypeAliasDecl(C, nullptr, SourceLocation(),
                                 SourceLocation(), nullptr, nullptr);
4428}

4430SourceRange TypedefDecl::getSourceRange() const {
SourceLocation RangeEnd = getLocation();
if (TypeSourceInfo *TInfo = getTypeSourceInfo()) {
  if (typeIsPostfix(TInfo->getType()))
    RangeEnd = TInfo->getTypeLoc().getSourceRange().getEnd();
}
return SourceRange(getLocStart(), RangeEnd);
4437}

4439SourceRange TypeAliasDecl::getSourceRange() const {
SourceLocation RangeEnd = getLocStart();
if (TypeSourceInfo *TInfo = getTypeSourceInfo())
  RangeEnd = TInfo->getTypeLoc().getSourceRange().getEnd();
return SourceRange(getLocStart(), RangeEnd);
4444}

4446void FileScopeAsmDecl::anchor() {}

4448FileScopeAsmDecl *FileScopeAsmDecl::Create(ASTContext &C, DeclContext *DC,
                                         StringLiteral *Str,
                                         SourceLocation AsmLoc,
                                         SourceLocation RParenLoc) {
return new (C, DC) FileScopeAsmDecl(DC, Str, AsmLoc, RParenLoc);
4453}

4455FileScopeAsmDecl *FileScopeAsmDecl::CreateDeserialized(ASTContext &C,
                                                     unsigned ID) {
return new (C, ID) FileScopeAsmDecl(nullptr, nullptr, SourceLocation(),
                                    SourceLocation());
4459}

4461void EmptyDecl::anchor() {}

4463EmptyDecl *EmptyDecl::Create(ASTContext &C, DeclContext *DC, SourceLocation L) {
return new (C, DC) EmptyDecl(DC, L);
4465}

4467EmptyDecl *EmptyDecl::CreateDeserialized(ASTContext &C, unsigned ID) {
return new (C, ID) EmptyDecl(nullptr, SourceLocation());
4469}

4471//===----------------------------------------------------------------------===//
4472// ImportDecl Implementation
4473//===----------------------------------------------------------------------===//

4475/// \brief Retrieve the number of module identifiers needed to name the given
4476/// module.
4477static unsigned getNumModuleIdentifiers(Module *Mod) {
unsigned Result = 1;
while (Mod->Parent) {
  Mod = Mod->Parent;
  ++Result;
}
return Result;
4484}

4486ImportDecl::ImportDecl(DeclContext *DC, SourceLocation StartLoc, 
                     Module *Imported,
                     ArrayRef<SourceLocation> IdentifierLocs)
: Decl(Import, DC, StartLoc), ImportedAndComplete(Imported, true) {
assert(getNumModuleIdentifiers(Imported) == IdentifierLocs.size())(static_cast <bool> (getNumModuleIdentifiers(Imported) ==
 IdentifierLocs.size()) ? void (0) : __assert_fail ("getNumModuleIdentifiers(Imported) == IdentifierLocs.size()"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/AST/Decl.cpp"
, 4490, __extension__ __PRETTY_FUNCTION__));
auto *StoredLocs = getTrailingObjects<SourceLocation>();
std::uninitialized_copy(IdentifierLocs.begin(), IdentifierLocs.end(),
                        StoredLocs);
4494}

4496ImportDecl::ImportDecl(DeclContext *DC, SourceLocation StartLoc, 
                     Module *Imported, SourceLocation EndLoc)
: Decl(Import, DC, StartLoc), ImportedAndComplete(Imported, false) {
*getTrailingObjects<SourceLocation>() = EndLoc;
4500}

4502ImportDecl *ImportDecl::Create(ASTContext &C, DeclContext *DC,
                             SourceLocation StartLoc, Module *Imported,
                             ArrayRef<SourceLocation> IdentifierLocs) {
return new (C, DC,
            additionalSizeToAlloc<SourceLocation>(IdentifierLocs.size()))
    ImportDecl(DC, StartLoc, Imported, IdentifierLocs);
4508}

4510ImportDecl *ImportDecl::CreateImplicit(ASTContext &C, DeclContext *DC,
                                     SourceLocation StartLoc,
                                     Module *Imported,
                                     SourceLocation EndLoc) {
ImportDecl *Import = new (C, DC, additionalSizeToAlloc<SourceLocation>(1))
    ImportDecl(DC, StartLoc, Imported, EndLoc);
Import->setImplicit();
return Import;
4518}

4520ImportDecl *ImportDecl::CreateDeserialized(ASTContext &C, unsigned ID,
                                         unsigned NumLocations) {
return new (C, ID, additionalSizeToAlloc<SourceLocation>(NumLocations))
    ImportDecl(EmptyShell());
4524}

4526ArrayRef<SourceLocation> ImportDecl::getIdentifierLocs() const {
if (!ImportedAndComplete.getInt())
  return None;

const auto *StoredLocs = getTrailingObjects<SourceLocation>();
return llvm::makeArrayRef(StoredLocs,
                          getNumModuleIdentifiers(getImportedModule()));
4533}

4535SourceRange ImportDecl::getSourceRange() const {
if (!ImportedAndComplete.getInt())
  return SourceRange(getLocation(), *getTrailingObjects<SourceLocation>());

return SourceRange(getLocation(), getIdentifierLocs().back());
4540}

4542//===----------------------------------------------------------------------===//
4543// ExportDecl Implementation
4544//===----------------------------------------------------------------------===//

4546void ExportDecl::anchor() {}

4548ExportDecl *ExportDecl::Create(ASTContext &C, DeclContext *DC,
                             SourceLocation ExportLoc) {
return new (C, DC) ExportDecl(DC, ExportLoc);
4551}

4553ExportDecl *ExportDecl::CreateDeserialized(ASTContext &C, unsigned ID) {
return new (C, ID) ExportDecl(nullptr, SourceLocation());
4555}

←

/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc

1	/===- TableGen'erated file -------------------------------------- C++ --===\
2	\|* *\|
3	\|* Attribute classes' definitions *\|
4	\|* *\|
5	\|* Automatically generated file, do not edit! *\|
6	\|* *\|
7	\===----------------------------------------------------------------------===/
8
9	#ifndef LLVM_CLANG_ATTR_CLASSES_INC
10	#define LLVM_CLANG_ATTR_CLASSES_INC
11
12	class AMDGPUFlatWorkGroupSizeAttr : public InheritableAttr {
13	unsigned min;
14
15	unsigned max;
16
17	public:
18	static AMDGPUFlatWorkGroupSizeAttr *CreateImplicit(ASTContext &Ctx, unsigned Min, unsigned Max, SourceRange Loc = SourceRange()) {
19	auto *A = new (Ctx) AMDGPUFlatWorkGroupSizeAttr(Loc, Ctx, Min, Max, 0);
20	A->setImplicit(true);
21	return A;
22	}
23
24	AMDGPUFlatWorkGroupSizeAttr(SourceRange R, ASTContext &Ctx
25	, unsigned Min
26	, unsigned Max
27	, unsigned SI
28	)
29	: InheritableAttr(attr::AMDGPUFlatWorkGroupSize, R, SI, false, false)
30	, min(Min)
31	, max(Max)
32	{
33	}
34
35	AMDGPUFlatWorkGroupSizeAttr *clone(ASTContext &C) const;
36	void printPretty(raw_ostream &OS,
37	const PrintingPolicy &Policy) const;
38	const char *getSpelling() const;
39	unsigned getMin() const {
40	return min;
41	}
42
43	unsigned getMax() const {
44	return max;
45	}
46
47
48
49	static bool classof(const Attr *A) { return A->getKind() == attr::AMDGPUFlatWorkGroupSize; }
50	};
51
52	class AMDGPUNumSGPRAttr : public InheritableAttr {
53	unsigned numSGPR;
54
55	public:
56	static AMDGPUNumSGPRAttr *CreateImplicit(ASTContext &Ctx, unsigned NumSGPR, SourceRange Loc = SourceRange()) {
57	auto *A = new (Ctx) AMDGPUNumSGPRAttr(Loc, Ctx, NumSGPR, 0);
58	A->setImplicit(true);
59	return A;
60	}
61
62	AMDGPUNumSGPRAttr(SourceRange R, ASTContext &Ctx
63	, unsigned NumSGPR
64	, unsigned SI
65	)
66	: InheritableAttr(attr::AMDGPUNumSGPR, R, SI, false, false)
67	, numSGPR(NumSGPR)
68	{
69	}
70
71	AMDGPUNumSGPRAttr *clone(ASTContext &C) const;
72	void printPretty(raw_ostream &OS,
73	const PrintingPolicy &Policy) const;
74	const char *getSpelling() const;
75	unsigned getNumSGPR() const {
76	return numSGPR;
77	}
78
79
80
81	static bool classof(const Attr *A) { return A->getKind() == attr::AMDGPUNumSGPR; }
82	};
83
84	class AMDGPUNumVGPRAttr : public InheritableAttr {
85	unsigned numVGPR;
86
87	public:
88	static AMDGPUNumVGPRAttr *CreateImplicit(ASTContext &Ctx, unsigned NumVGPR, SourceRange Loc = SourceRange()) {
89	auto *A = new (Ctx) AMDGPUNumVGPRAttr(Loc, Ctx, NumVGPR, 0);
90	A->setImplicit(true);
91	return A;
92	}
93
94	AMDGPUNumVGPRAttr(SourceRange R, ASTContext &Ctx
95	, unsigned NumVGPR
96	, unsigned SI
97	)
98	: InheritableAttr(attr::AMDGPUNumVGPR, R, SI, false, false)
99	, numVGPR(NumVGPR)
100	{
101	}
102
103	AMDGPUNumVGPRAttr *clone(ASTContext &C) const;
104	void printPretty(raw_ostream &OS,
105	const PrintingPolicy &Policy) const;
106	const char *getSpelling() const;
107	unsigned getNumVGPR() const {
108	return numVGPR;
109	}
110
111
112
113	static bool classof(const Attr *A) { return A->getKind() == attr::AMDGPUNumVGPR; }
114	};
115
116	class AMDGPUWavesPerEUAttr : public InheritableAttr {
117	unsigned min;
118
119	unsigned max;
120
121	public:
122	static AMDGPUWavesPerEUAttr *CreateImplicit(ASTContext &Ctx, unsigned Min, unsigned Max, SourceRange Loc = SourceRange()) {
123	auto *A = new (Ctx) AMDGPUWavesPerEUAttr(Loc, Ctx, Min, Max, 0);
124	A->setImplicit(true);
125	return A;
126	}
127
128	AMDGPUWavesPerEUAttr(SourceRange R, ASTContext &Ctx
129	, unsigned Min
130	, unsigned Max
131	, unsigned SI
132	)
133	: InheritableAttr(attr::AMDGPUWavesPerEU, R, SI, false, false)
134	, min(Min)
135	, max(Max)
136	{
137	}
138
139	AMDGPUWavesPerEUAttr(SourceRange R, ASTContext &Ctx
140	, unsigned Min
141	, unsigned SI
142	)
143	: InheritableAttr(attr::AMDGPUWavesPerEU, R, SI, false, false)
144	, min(Min)
145	, max()
146	{
147	}
148
149	AMDGPUWavesPerEUAttr *clone(ASTContext &C) const;
150	void printPretty(raw_ostream &OS,
151	const PrintingPolicy &Policy) const;
152	const char *getSpelling() const;
153	unsigned getMin() const {
154	return min;
155	}
156
157	unsigned getMax() const {
158	return max;
159	}
160
161
162
163	static bool classof(const Attr *A) { return A->getKind() == attr::AMDGPUWavesPerEU; }
164	};
165
166	class ARMInterruptAttr : public InheritableAttr {
167	public:
168	enum InterruptType {
169	IRQ,
170	FIQ,
171	SWI,
172	ABORT,
173	UNDEF,
174	Generic
175	};
176	private:
177	InterruptType interrupt;
178
179	public:
180	static ARMInterruptAttr *CreateImplicit(ASTContext &Ctx, InterruptType Interrupt, SourceRange Loc = SourceRange()) {
181	auto *A = new (Ctx) ARMInterruptAttr(Loc, Ctx, Interrupt, 0);
182	A->setImplicit(true);
183	return A;
184	}
185
186	ARMInterruptAttr(SourceRange R, ASTContext &Ctx
187	, InterruptType Interrupt
188	, unsigned SI
189	)
190	: InheritableAttr(attr::ARMInterrupt, R, SI, false, false)
191	, interrupt(Interrupt)
192	{
193	}
194
195	ARMInterruptAttr(SourceRange R, ASTContext &Ctx
196	, unsigned SI
197	)
198	: InheritableAttr(attr::ARMInterrupt, R, SI, false, false)
199	, interrupt(InterruptType(0))
200	{
201	}
202
203	ARMInterruptAttr *clone(ASTContext &C) const;
204	void printPretty(raw_ostream &OS,
205	const PrintingPolicy &Policy) const;
206	const char *getSpelling() const;
207	InterruptType getInterrupt() const {
208	return interrupt;
209	}
210
211	static bool ConvertStrToInterruptType(StringRef Val, InterruptType &Out) {
212	Optional<InterruptType> R = llvm::StringSwitch<Optional<InterruptType>>(Val)
213	.Case("IRQ", ARMInterruptAttr::IRQ)
214	.Case("FIQ", ARMInterruptAttr::FIQ)
215	.Case("SWI", ARMInterruptAttr::SWI)
216	.Case("ABORT", ARMInterruptAttr::ABORT)
217	.Case("UNDEF", ARMInterruptAttr::UNDEF)
218	.Case("", ARMInterruptAttr::Generic)
219	.Default(Optional<InterruptType>());
220	if (R) {
221	Out = *R;
222	return true;
223	}
224	return false;
225	}
226
227	static const char *ConvertInterruptTypeToStr(InterruptType Val) {
228	switch(Val) {
229	case ARMInterruptAttr::IRQ: return "IRQ";
230	case ARMInterruptAttr::FIQ: return "FIQ";
231	case ARMInterruptAttr::SWI: return "SWI";
232	case ARMInterruptAttr::ABORT: return "ABORT";
233	case ARMInterruptAttr::UNDEF: return "UNDEF";
234	case ARMInterruptAttr::Generic: return "";
235	}
236	llvm_unreachable("No enumerator with that value")::llvm::llvm_unreachable_internal("No enumerator with that value" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 236);
237	}
238
239
240	static bool classof(const Attr *A) { return A->getKind() == attr::ARMInterrupt; }
241	};
242
243	class AVRInterruptAttr : public InheritableAttr {
244	public:
245	static AVRInterruptAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) {
246	auto *A = new (Ctx) AVRInterruptAttr(Loc, Ctx, 0);
247	A->setImplicit(true);
248	return A;
249	}
250
251	AVRInterruptAttr(SourceRange R, ASTContext &Ctx
252	, unsigned SI
253	)
254	: InheritableAttr(attr::AVRInterrupt, R, SI, false, false)
255	{
256	}
257
258	AVRInterruptAttr *clone(ASTContext &C) const;
259	void printPretty(raw_ostream &OS,
260	const PrintingPolicy &Policy) const;
261	const char *getSpelling() const;
262
263
264	static bool classof(const Attr *A) { return A->getKind() == attr::AVRInterrupt; }
265	};
266
267	class AVRSignalAttr : public InheritableAttr {
268	public:
269	static AVRSignalAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) {
270	auto *A = new (Ctx) AVRSignalAttr(Loc, Ctx, 0);
271	A->setImplicit(true);
272	return A;
273	}
274
275	AVRSignalAttr(SourceRange R, ASTContext &Ctx
276	, unsigned SI
277	)
278	: InheritableAttr(attr::AVRSignal, R, SI, false, false)
279	{
280	}
281
282	AVRSignalAttr *clone(ASTContext &C) const;
283	void printPretty(raw_ostream &OS,
284	const PrintingPolicy &Policy) const;
285	const char *getSpelling() const;
286
287
288	static bool classof(const Attr *A) { return A->getKind() == attr::AVRSignal; }
289	};
290
291	class AbiTagAttr : public Attr {
292	unsigned tags_Size;
293	StringRef *tags_;
294
295	public:
296	static AbiTagAttr CreateImplicit(ASTContext &Ctx, StringRef Tags, unsigned TagsSize, SourceRange Loc = SourceRange()) {
297	auto *A = new (Ctx) AbiTagAttr(Loc, Ctx, Tags, TagsSize, 0);
298	A->setImplicit(true);
299	return A;
300	}
301
302	AbiTagAttr(SourceRange R, ASTContext &Ctx
303	, StringRef *Tags, unsigned TagsSize
304	, unsigned SI
305	)
306	: Attr(attr::AbiTag, R, SI, false)
307	, tags_Size(TagsSize), tags_(new (Ctx, 16) StringRef[tags_Size])
308	{
309	for (size_t I = 0, E = tags_Size; I != E;
310	++I) {
311	StringRef Ref = Tags[I];
312	if (!Ref.empty()) {
313	char *Mem = new (Ctx, 1) char[Ref.size()];
314	std::memcpy(Mem, Ref.data(), Ref.size());
315	tags_[I] = StringRef(Mem, Ref.size());
316	}
317	}
318	}
319
320	AbiTagAttr(SourceRange R, ASTContext &Ctx
321	, unsigned SI
322	)
323	: Attr(attr::AbiTag, R, SI, false)
324	, tags_Size(0), tags_(nullptr)
325	{
326	}
327
328	AbiTagAttr *clone(ASTContext &C) const;
329	void printPretty(raw_ostream &OS,
330	const PrintingPolicy &Policy) const;
331	const char *getSpelling() const;
332	typedef StringRef* tags_iterator;
333	tags_iterator tags_begin() const { return tags_; }
334	tags_iterator tags_end() const { return tags_ + tags_Size; }
335	unsigned tags_size() const { return tags_Size; }
336	llvm::iterator_range<tags_iterator> tags() const { return llvm::make_range(tags_begin(), tags_end()); }
337
338
339
340
341	static bool classof(const Attr *A) { return A->getKind() == attr::AbiTag; }
342	};
343
344	class AcquireCapabilityAttr : public InheritableAttr {
345	unsigned args_Size;
346	Expr * *args_;
347
348	public:
349	enum Spelling {
350	GNU_acquire_capability = 0,
351	CXX11_clang_acquire_capability = 1,
352	GNU_acquire_shared_capability = 2,
353	CXX11_clang_acquire_shared_capability = 3,
354	GNU_exclusive_lock_function = 4,
355	GNU_shared_lock_function = 5
356	};
357
358	static AcquireCapabilityAttr CreateImplicit(ASTContext &Ctx, Spelling S, Expr *Args, unsigned ArgsSize, SourceRange Loc = SourceRange()) {
359	auto *A = new (Ctx) AcquireCapabilityAttr(Loc, Ctx, Args, ArgsSize, S);
360	A->setImplicit(true);
361	return A;
362	}
363
364	AcquireCapabilityAttr(SourceRange R, ASTContext &Ctx
365	, Expr * *Args, unsigned ArgsSize
366	, unsigned SI
367	)
368	: InheritableAttr(attr::AcquireCapability, R, SI, true, true)
369	, args_Size(ArgsSize), args_(new (Ctx, 16) Expr *[args_Size])
370	{
371	std::copy(Args, Args + args_Size, args_);
372	}
373
374	AcquireCapabilityAttr(SourceRange R, ASTContext &Ctx
375	, unsigned SI
376	)
377	: InheritableAttr(attr::AcquireCapability, R, SI, true, true)
378	, args_Size(0), args_(nullptr)
379	{
380	}
381
382	AcquireCapabilityAttr *clone(ASTContext &C) const;
383	void printPretty(raw_ostream &OS,
384	const PrintingPolicy &Policy) const;
385	const char *getSpelling() const;
386	Spelling getSemanticSpelling() const {
387	switch (SpellingListIndex) {
388	default: llvm_unreachable("Unknown spelling list index")::llvm::llvm_unreachable_internal("Unknown spelling list index" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 388);
389	case 0: return GNU_acquire_capability;
390	case 1: return CXX11_clang_acquire_capability;
391	case 2: return GNU_acquire_shared_capability;
392	case 3: return CXX11_clang_acquire_shared_capability;
393	case 4: return GNU_exclusive_lock_function;
394	case 5: return GNU_shared_lock_function;
395	}
396	}
397	bool isShared() const { return SpellingListIndex == 2 \|\|
398	SpellingListIndex == 3 \|\|
399	SpellingListIndex == 5; }
400	typedef Expr ** args_iterator;
401	args_iterator args_begin() const { return args_; }
402	args_iterator args_end() const { return args_ + args_Size; }
403	unsigned args_size() const { return args_Size; }
404	llvm::iterator_range<args_iterator> args() const { return llvm::make_range(args_begin(), args_end()); }
405
406
407
408
409	static bool classof(const Attr *A) { return A->getKind() == attr::AcquireCapability; }
410	};
411
412	class AcquiredAfterAttr : public InheritableAttr {
413	unsigned args_Size;
414	Expr * *args_;
415
416	public:
417	static AcquiredAfterAttr CreateImplicit(ASTContext &Ctx, Expr *Args, unsigned ArgsSize, SourceRange Loc = SourceRange()) {
418	auto *A = new (Ctx) AcquiredAfterAttr(Loc, Ctx, Args, ArgsSize, 0);
419	A->setImplicit(true);
420	return A;
421	}
422
423	AcquiredAfterAttr(SourceRange R, ASTContext &Ctx
424	, Expr * *Args, unsigned ArgsSize
425	, unsigned SI
426	)
427	: InheritableAttr(attr::AcquiredAfter, R, SI, true, true)
428	, args_Size(ArgsSize), args_(new (Ctx, 16) Expr *[args_Size])
429	{
430	std::copy(Args, Args + args_Size, args_);
431	}
432
433	AcquiredAfterAttr(SourceRange R, ASTContext &Ctx
434	, unsigned SI
435	)
436	: InheritableAttr(attr::AcquiredAfter, R, SI, true, true)
437	, args_Size(0), args_(nullptr)
438	{
439	}
440
441	AcquiredAfterAttr *clone(ASTContext &C) const;
442	void printPretty(raw_ostream &OS,
443	const PrintingPolicy &Policy) const;
444	const char *getSpelling() const;
445	typedef Expr ** args_iterator;
446	args_iterator args_begin() const { return args_; }
447	args_iterator args_end() const { return args_ + args_Size; }
448	unsigned args_size() const { return args_Size; }
449	llvm::iterator_range<args_iterator> args() const { return llvm::make_range(args_begin(), args_end()); }
450
451
452
453
454	static bool classof(const Attr *A) { return A->getKind() == attr::AcquiredAfter; }
455	};
456
457	class AcquiredBeforeAttr : public InheritableAttr {
458	unsigned args_Size;
459	Expr * *args_;
460
461	public:
462	static AcquiredBeforeAttr CreateImplicit(ASTContext &Ctx, Expr *Args, unsigned ArgsSize, SourceRange Loc = SourceRange()) {
463	auto *A = new (Ctx) AcquiredBeforeAttr(Loc, Ctx, Args, ArgsSize, 0);
464	A->setImplicit(true);
465	return A;
466	}
467
468	AcquiredBeforeAttr(SourceRange R, ASTContext &Ctx
469	, Expr * *Args, unsigned ArgsSize
470	, unsigned SI
471	)
472	: InheritableAttr(attr::AcquiredBefore, R, SI, true, true)
473	, args_Size(ArgsSize), args_(new (Ctx, 16) Expr *[args_Size])
474	{
475	std::copy(Args, Args + args_Size, args_);
476	}
477
478	AcquiredBeforeAttr(SourceRange R, ASTContext &Ctx
479	, unsigned SI
480	)
481	: InheritableAttr(attr::AcquiredBefore, R, SI, true, true)
482	, args_Size(0), args_(nullptr)
483	{
484	}
485
486	AcquiredBeforeAttr *clone(ASTContext &C) const;
487	void printPretty(raw_ostream &OS,
488	const PrintingPolicy &Policy) const;
489	const char *getSpelling() const;
490	typedef Expr ** args_iterator;
491	args_iterator args_begin() const { return args_; }
492	args_iterator args_end() const { return args_ + args_Size; }
493	unsigned args_size() const { return args_Size; }
494	llvm::iterator_range<args_iterator> args() const { return llvm::make_range(args_begin(), args_end()); }
495
496
497
498
499	static bool classof(const Attr *A) { return A->getKind() == attr::AcquiredBefore; }
500	};
501
502	class AliasAttr : public Attr {
503	unsigned aliaseeLength;
504	char *aliasee;
505
506	public:
507	static AliasAttr *CreateImplicit(ASTContext &Ctx, llvm::StringRef Aliasee, SourceRange Loc = SourceRange()) {
508	auto *A = new (Ctx) AliasAttr(Loc, Ctx, Aliasee, 0);
509	A->setImplicit(true);
510	return A;
511	}
512
513	AliasAttr(SourceRange R, ASTContext &Ctx
514	, llvm::StringRef Aliasee
515	, unsigned SI
516	)
517	: Attr(attr::Alias, R, SI, false)
518	, aliaseeLength(Aliasee.size()),aliasee(new (Ctx, 1) char[aliaseeLength])
519	{
520	if (!Aliasee.empty())
521	std::memcpy(aliasee, Aliasee.data(), aliaseeLength);
522	}
523
524	AliasAttr *clone(ASTContext &C) const;
525	void printPretty(raw_ostream &OS,
526	const PrintingPolicy &Policy) const;
527	const char *getSpelling() const;
528	llvm::StringRef getAliasee() const {
529	return llvm::StringRef(aliasee, aliaseeLength);
530	}
531	unsigned getAliaseeLength() const {
532	return aliaseeLength;
533	}
534	void setAliasee(ASTContext &C, llvm::StringRef S) {
535	aliaseeLength = S.size();
536	this->aliasee = new (C, 1) char [aliaseeLength];
537	if (!S.empty())
538	std::memcpy(this->aliasee, S.data(), aliaseeLength);
539	}
540
541
542
543	static bool classof(const Attr *A) { return A->getKind() == attr::Alias; }
544	};
545
546	class AlignMac68kAttr : public InheritableAttr {
547	public:
548	static AlignMac68kAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) {
549	auto *A = new (Ctx) AlignMac68kAttr(Loc, Ctx, 0);
550	A->setImplicit(true);
551	return A;
552	}
553
554	AlignMac68kAttr(SourceRange R, ASTContext &Ctx
555	, unsigned SI
556	)
557	: InheritableAttr(attr::AlignMac68k, R, SI, false, false)
558	{
559	}
560
561	AlignMac68kAttr *clone(ASTContext &C) const;
562	void printPretty(raw_ostream &OS,
563	const PrintingPolicy &Policy) const;
564	const char *getSpelling() const;
565
566
567	static bool classof(const Attr *A) { return A->getKind() == attr::AlignMac68k; }
568	};
569
570	class AlignValueAttr : public Attr {
571	Expr * alignment;
572
573	public:
574	static AlignValueAttr CreateImplicit(ASTContext &Ctx, Expr Alignment, SourceRange Loc = SourceRange()) {
575	auto *A = new (Ctx) AlignValueAttr(Loc, Ctx, Alignment, 0);
576	A->setImplicit(true);
577	return A;
578	}
579
580	AlignValueAttr(SourceRange R, ASTContext &Ctx
581	, Expr * Alignment
582	, unsigned SI
583	)
584	: Attr(attr::AlignValue, R, SI, false)
585	, alignment(Alignment)
586	{
587	}
588
589	AlignValueAttr *clone(ASTContext &C) const;
590	void printPretty(raw_ostream &OS,
591	const PrintingPolicy &Policy) const;
592	const char *getSpelling() const;
593	Expr * getAlignment() const {
594	return alignment;
595	}
596
597
598
599	static bool classof(const Attr *A) { return A->getKind() == attr::AlignValue; }
600	};
601
602	class AlignedAttr : public InheritableAttr {
603	bool isalignmentExpr;
604	union {
605	Expr *alignmentExpr;
606	TypeSourceInfo *alignmentType;
607	};
608
609	public:
610	enum Spelling {
611	GNU_aligned = 0,
612	CXX11_gnu_aligned = 1,
613	Declspec_align = 2,
614	Keyword_alignas = 3,
615	Keyword_Alignas = 4
616	};
617
618	static AlignedAttr CreateImplicit(ASTContext &Ctx, Spelling S, bool IsAlignmentExpr, void Alignment, SourceRange Loc = SourceRange()) {
619	auto *A = new (Ctx) AlignedAttr(Loc, Ctx, IsAlignmentExpr, Alignment, S);
620	A->setImplicit(true);
621	return A;
622	}
623
624	AlignedAttr(SourceRange R, ASTContext &Ctx
625	, bool IsAlignmentExpr, void *Alignment
626	, unsigned SI
627	)
628	: InheritableAttr(attr::Aligned, R, SI, false, false)
629	, isalignmentExpr(IsAlignmentExpr)
630	{
631	if (isalignmentExpr)
632	alignmentExpr = reinterpret_cast<Expr *>(Alignment);
633	else
634	alignmentType = reinterpret_cast<TypeSourceInfo *>(Alignment);
635	}
636
637	AlignedAttr(SourceRange R, ASTContext &Ctx
638	, unsigned SI
639	)
640	: InheritableAttr(attr::Aligned, R, SI, false, false)
641	, isalignmentExpr(false)
642	{
643	}
644
645	AlignedAttr *clone(ASTContext &C) const;
646	void printPretty(raw_ostream &OS,
647	const PrintingPolicy &Policy) const;
648	const char *getSpelling() const;
649	Spelling getSemanticSpelling() const {
650	switch (SpellingListIndex) {
651	default: llvm_unreachable("Unknown spelling list index")::llvm::llvm_unreachable_internal("Unknown spelling list index" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 651);
652	case 0: return GNU_aligned;
653	case 1: return CXX11_gnu_aligned;
654	case 2: return Declspec_align;
655	case 3: return Keyword_alignas;
656	case 4: return Keyword_Alignas;
657	}
658	}
659	bool isGNU() const { return SpellingListIndex == 0 \|\|
660	SpellingListIndex == 1; }
661	bool isC11() const { return SpellingListIndex == 4; }
662	bool isAlignas() const { return SpellingListIndex == 3 \|\|
663	SpellingListIndex == 4; }
664	bool isDeclspec() const { return SpellingListIndex == 2; }
665	bool isAlignmentDependent() const;
666	unsigned getAlignment(ASTContext &Ctx) const;
667	bool isAlignmentExpr() const {
668	return isalignmentExpr;
669	}
670	Expr *getAlignmentExpr() const {
671	assert(isalignmentExpr)(static_cast <bool> (isalignmentExpr) ? void (0) : __assert_fail ("isalignmentExpr", "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 671, __extension__ __PRETTY_FUNCTION__));
672	return alignmentExpr;
673	}
674	TypeSourceInfo *getAlignmentType() const {
675	assert(!isalignmentExpr)(static_cast <bool> (!isalignmentExpr) ? void (0) : __assert_fail ("!isalignmentExpr", "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 675, __extension__ __PRETTY_FUNCTION__));
676	return alignmentType;
677	}
678
679
680
681	static bool classof(const Attr *A) { return A->getKind() == attr::Aligned; }
682	};
683
684	class AllocAlignAttr : public InheritableAttr {
685	ParamIdx paramIndex;
686
687	public:
688	static AllocAlignAttr *CreateImplicit(ASTContext &Ctx, ParamIdx ParamIndex, SourceRange Loc = SourceRange()) {
689	auto *A = new (Ctx) AllocAlignAttr(Loc, Ctx, ParamIndex, 0);
690	A->setImplicit(true);
691	return A;
692	}
693
694	AllocAlignAttr(SourceRange R, ASTContext &Ctx
695	, ParamIdx ParamIndex
696	, unsigned SI
697	)
698	: InheritableAttr(attr::AllocAlign, R, SI, false, false)
699	, paramIndex(ParamIndex)
700	{
701	}
702
703	AllocAlignAttr *clone(ASTContext &C) const;
704	void printPretty(raw_ostream &OS,
705	const PrintingPolicy &Policy) const;
706	const char *getSpelling() const;
707	ParamIdx getParamIndex() const {
708	return paramIndex;
709	}
710
711
712
713	static bool classof(const Attr *A) { return A->getKind() == attr::AllocAlign; }
714	};
715
716	class AllocSizeAttr : public InheritableAttr {
717	ParamIdx elemSizeParam;
718
719	ParamIdx numElemsParam;
720
721	public:
722	static AllocSizeAttr *CreateImplicit(ASTContext &Ctx, ParamIdx ElemSizeParam, ParamIdx NumElemsParam, SourceRange Loc = SourceRange()) {
723	auto *A = new (Ctx) AllocSizeAttr(Loc, Ctx, ElemSizeParam, NumElemsParam, 0);
724	A->setImplicit(true);
725	return A;
726	}
727
728	AllocSizeAttr(SourceRange R, ASTContext &Ctx
729	, ParamIdx ElemSizeParam
730	, ParamIdx NumElemsParam
731	, unsigned SI
732	)
733	: InheritableAttr(attr::AllocSize, R, SI, false, false)
734	, elemSizeParam(ElemSizeParam)
735	, numElemsParam(NumElemsParam)
736	{
737	}
738
739	AllocSizeAttr(SourceRange R, ASTContext &Ctx
740	, ParamIdx ElemSizeParam
741	, unsigned SI
742	)
743	: InheritableAttr(attr::AllocSize, R, SI, false, false)
744	, elemSizeParam(ElemSizeParam)
745	, numElemsParam()
746	{
747	}
748
749	AllocSizeAttr *clone(ASTContext &C) const;
750	void printPretty(raw_ostream &OS,
751	const PrintingPolicy &Policy) const;
752	const char *getSpelling() const;
753	ParamIdx getElemSizeParam() const {
754	return elemSizeParam;
755	}
756
757	ParamIdx getNumElemsParam() const {
758	return numElemsParam;
759	}
760
761
762
763	static bool classof(const Attr *A) { return A->getKind() == attr::AllocSize; }
764	};
765
766	class AlwaysInlineAttr : public InheritableAttr {
767	public:
768	enum Spelling {
769	GNU_always_inline = 0,
770	CXX11_gnu_always_inline = 1,
771	Keyword_forceinline = 2
772	};
773
774	static AlwaysInlineAttr *CreateImplicit(ASTContext &Ctx, Spelling S, SourceRange Loc = SourceRange()) {
775	auto *A = new (Ctx) AlwaysInlineAttr(Loc, Ctx, S);
776	A->setImplicit(true);
777	return A;
778	}
779
780	AlwaysInlineAttr(SourceRange R, ASTContext &Ctx
781	, unsigned SI
782	)
783	: InheritableAttr(attr::AlwaysInline, R, SI, false, false)
784	{
785	}
786
787	AlwaysInlineAttr *clone(ASTContext &C) const;
788	void printPretty(raw_ostream &OS,
789	const PrintingPolicy &Policy) const;
790	const char *getSpelling() const;
791	Spelling getSemanticSpelling() const {
792	switch (SpellingListIndex) {
793	default: llvm_unreachable("Unknown spelling list index")::llvm::llvm_unreachable_internal("Unknown spelling list index" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 793);
794	case 0: return GNU_always_inline;
795	case 1: return CXX11_gnu_always_inline;
796	case 2: return Keyword_forceinline;
797	}
798	}
799
800
801	static bool classof(const Attr *A) { return A->getKind() == attr::AlwaysInline; }
802	};
803
804	class AnalyzerNoReturnAttr : public InheritableAttr {
805	public:
806	static AnalyzerNoReturnAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) {
807	auto *A = new (Ctx) AnalyzerNoReturnAttr(Loc, Ctx, 0);
808	A->setImplicit(true);
809	return A;
810	}
811
812	AnalyzerNoReturnAttr(SourceRange R, ASTContext &Ctx
813	, unsigned SI
814	)
815	: InheritableAttr(attr::AnalyzerNoReturn, R, SI, false, false)
816	{
817	}
818
819	AnalyzerNoReturnAttr *clone(ASTContext &C) const;
820	void printPretty(raw_ostream &OS,
821	const PrintingPolicy &Policy) const;
822	const char *getSpelling() const;
823
824
825	static bool classof(const Attr *A) { return A->getKind() == attr::AnalyzerNoReturn; }
826	};
827
828	class AnnotateAttr : public InheritableParamAttr {
829	unsigned annotationLength;
830	char *annotation;
831
832	public:
833	static AnnotateAttr *CreateImplicit(ASTContext &Ctx, llvm::StringRef Annotation, SourceRange Loc = SourceRange()) {
834	auto *A = new (Ctx) AnnotateAttr(Loc, Ctx, Annotation, 0);
835	A->setImplicit(true);
836	return A;
837	}
838
839	AnnotateAttr(SourceRange R, ASTContext &Ctx
840	, llvm::StringRef Annotation
841	, unsigned SI
842	)
843	: InheritableParamAttr(attr::Annotate, R, SI, false, false)
844	, annotationLength(Annotation.size()),annotation(new (Ctx, 1) char[annotationLength])
845	{
846	if (!Annotation.empty())
847	std::memcpy(annotation, Annotation.data(), annotationLength);
848	}
849
850	AnnotateAttr *clone(ASTContext &C) const;
851	void printPretty(raw_ostream &OS,
852	const PrintingPolicy &Policy) const;
853	const char *getSpelling() const;
854	llvm::StringRef getAnnotation() const {
855	return llvm::StringRef(annotation, annotationLength);
856	}
857	unsigned getAnnotationLength() const {
858	return annotationLength;
859	}
860	void setAnnotation(ASTContext &C, llvm::StringRef S) {
861	annotationLength = S.size();
862	this->annotation = new (C, 1) char [annotationLength];
863	if (!S.empty())
864	std::memcpy(this->annotation, S.data(), annotationLength);
865	}
866
867
868
869	static bool classof(const Attr *A) { return A->getKind() == attr::Annotate; }
870	};
871
872	class AnyX86InterruptAttr : public InheritableAttr {
873	public:
874	static AnyX86InterruptAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) {
875	auto *A = new (Ctx) AnyX86InterruptAttr(Loc, Ctx, 0);
876	A->setImplicit(true);
877	return A;
878	}
879
880	AnyX86InterruptAttr(SourceRange R, ASTContext &Ctx
881	, unsigned SI
882	)
883	: InheritableAttr(attr::AnyX86Interrupt, R, SI, false, false)
884	{
885	}
886
887	AnyX86InterruptAttr *clone(ASTContext &C) const;
888	void printPretty(raw_ostream &OS,
889	const PrintingPolicy &Policy) const;
890	const char *getSpelling() const;
891
892
893	static bool classof(const Attr *A) { return A->getKind() == attr::AnyX86Interrupt; }
894	};
895
896	class AnyX86NoCallerSavedRegistersAttr : public InheritableAttr {
897	public:
898	static AnyX86NoCallerSavedRegistersAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) {
899	auto *A = new (Ctx) AnyX86NoCallerSavedRegistersAttr(Loc, Ctx, 0);
900	A->setImplicit(true);
901	return A;
902	}
903
904	AnyX86NoCallerSavedRegistersAttr(SourceRange R, ASTContext &Ctx
905	, unsigned SI
906	)
907	: InheritableAttr(attr::AnyX86NoCallerSavedRegisters, R, SI, false, false)
908	{
909	}
910
911	AnyX86NoCallerSavedRegistersAttr *clone(ASTContext &C) const;
912	void printPretty(raw_ostream &OS,
913	const PrintingPolicy &Policy) const;
914	const char *getSpelling() const;
915
916
917	static bool classof(const Attr *A) { return A->getKind() == attr::AnyX86NoCallerSavedRegisters; }
918	};
919
920	class AnyX86NoCfCheckAttr : public InheritableAttr {
921	public:
922	static AnyX86NoCfCheckAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) {
923	auto *A = new (Ctx) AnyX86NoCfCheckAttr(Loc, Ctx, 0);
924	A->setImplicit(true);
925	return A;
926	}
927
928	AnyX86NoCfCheckAttr(SourceRange R, ASTContext &Ctx
929	, unsigned SI
930	)
931	: InheritableAttr(attr::AnyX86NoCfCheck, R, SI, false, false)
932	{
933	}
934
935	AnyX86NoCfCheckAttr *clone(ASTContext &C) const;
936	void printPretty(raw_ostream &OS,
937	const PrintingPolicy &Policy) const;
938	const char *getSpelling() const;
939
940
941	static bool classof(const Attr *A) { return A->getKind() == attr::AnyX86NoCfCheck; }
942	};
943
944	class ArcWeakrefUnavailableAttr : public InheritableAttr {
945	public:
946	static ArcWeakrefUnavailableAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) {
947	auto *A = new (Ctx) ArcWeakrefUnavailableAttr(Loc, Ctx, 0);
948	A->setImplicit(true);
949	return A;
950	}
951
952	ArcWeakrefUnavailableAttr(SourceRange R, ASTContext &Ctx
953	, unsigned SI
954	)
955	: InheritableAttr(attr::ArcWeakrefUnavailable, R, SI, false, false)
956	{
957	}
958
959	ArcWeakrefUnavailableAttr *clone(ASTContext &C) const;
960	void printPretty(raw_ostream &OS,
961	const PrintingPolicy &Policy) const;
962	const char *getSpelling() const;
963
964
965	static bool classof(const Attr *A) { return A->getKind() == attr::ArcWeakrefUnavailable; }
966	};
967
968	class ArgumentWithTypeTagAttr : public InheritableAttr {
969	IdentifierInfo * argumentKind;
970
971	ParamIdx argumentIdx;
972
973	ParamIdx typeTagIdx;
974
975	bool isPointer;
976
977	public:
978	enum Spelling {
979	GNU_argument_with_type_tag = 0,
980	CXX11_clang_argument_with_type_tag = 1,
981	C2x_clang_argument_with_type_tag = 2,
982	GNU_pointer_with_type_tag = 3,
983	CXX11_clang_pointer_with_type_tag = 4,
984	C2x_clang_pointer_with_type_tag = 5
985	};
986
987	static ArgumentWithTypeTagAttr CreateImplicit(ASTContext &Ctx, Spelling S, IdentifierInfo ArgumentKind, ParamIdx ArgumentIdx, ParamIdx TypeTagIdx, bool IsPointer, SourceRange Loc = SourceRange()) {
988	auto *A = new (Ctx) ArgumentWithTypeTagAttr(Loc, Ctx, ArgumentKind, ArgumentIdx, TypeTagIdx, IsPointer, S);
989	A->setImplicit(true);
990	return A;
991	}
992
993	static ArgumentWithTypeTagAttr CreateImplicit(ASTContext &Ctx, Spelling S, IdentifierInfo ArgumentKind, ParamIdx ArgumentIdx, ParamIdx TypeTagIdx, SourceRange Loc = SourceRange()) {
994	auto *A = new (Ctx) ArgumentWithTypeTagAttr(Loc, Ctx, ArgumentKind, ArgumentIdx, TypeTagIdx, S);
995	A->setImplicit(true);
996	return A;
997	}
998
999	ArgumentWithTypeTagAttr(SourceRange R, ASTContext &Ctx
1000	, IdentifierInfo * ArgumentKind
1001	, ParamIdx ArgumentIdx
1002	, ParamIdx TypeTagIdx
1003	, bool IsPointer
1004	, unsigned SI
1005	)
1006	: InheritableAttr(attr::ArgumentWithTypeTag, R, SI, false, false)
1007	, argumentKind(ArgumentKind)
1008	, argumentIdx(ArgumentIdx)
1009	, typeTagIdx(TypeTagIdx)
1010	, isPointer(IsPointer)
1011	{
1012	}
1013
1014	ArgumentWithTypeTagAttr(SourceRange R, ASTContext &Ctx
1015	, IdentifierInfo * ArgumentKind
1016	, ParamIdx ArgumentIdx
1017	, ParamIdx TypeTagIdx
1018	, unsigned SI
1019	)
1020	: InheritableAttr(attr::ArgumentWithTypeTag, R, SI, false, false)
1021	, argumentKind(ArgumentKind)
1022	, argumentIdx(ArgumentIdx)
1023	, typeTagIdx(TypeTagIdx)
1024	, isPointer()
1025	{
1026	}
1027
1028	ArgumentWithTypeTagAttr *clone(ASTContext &C) const;
1029	void printPretty(raw_ostream &OS,
1030	const PrintingPolicy &Policy) const;
1031	const char *getSpelling() const;
1032	Spelling getSemanticSpelling() const {
1033	switch (SpellingListIndex) {
1034	default: llvm_unreachable("Unknown spelling list index")::llvm::llvm_unreachable_internal("Unknown spelling list index" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 1034);
1035	case 0: return GNU_argument_with_type_tag;
1036	case 1: return CXX11_clang_argument_with_type_tag;
1037	case 2: return C2x_clang_argument_with_type_tag;
1038	case 3: return GNU_pointer_with_type_tag;
1039	case 4: return CXX11_clang_pointer_with_type_tag;
1040	case 5: return C2x_clang_pointer_with_type_tag;
1041	}
1042	}
1043	IdentifierInfo * getArgumentKind() const {
1044	return argumentKind;
1045	}
1046
1047	ParamIdx getArgumentIdx() const {
1048	return argumentIdx;
1049	}
1050
1051	ParamIdx getTypeTagIdx() const {
1052	return typeTagIdx;
1053	}
1054
1055	bool getIsPointer() const {
1056	return isPointer;
1057	}
1058
1059
1060
1061	static bool classof(const Attr *A) { return A->getKind() == attr::ArgumentWithTypeTag; }
1062	};
1063
1064	class ArtificialAttr : public InheritableAttr {
1065	public:
1066	static ArtificialAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) {
1067	auto *A = new (Ctx) ArtificialAttr(Loc, Ctx, 0);
1068	A->setImplicit(true);
1069	return A;
1070	}
1071
1072	ArtificialAttr(SourceRange R, ASTContext &Ctx
1073	, unsigned SI
1074	)
1075	: InheritableAttr(attr::Artificial, R, SI, false, false)
1076	{
1077	}
1078
1079	ArtificialAttr *clone(ASTContext &C) const;
1080	void printPretty(raw_ostream &OS,
1081	const PrintingPolicy &Policy) const;
1082	const char *getSpelling() const;
1083
1084
1085	static bool classof(const Attr *A) { return A->getKind() == attr::Artificial; }
1086	};
1087
1088	class AsmLabelAttr : public InheritableAttr {
1089	unsigned labelLength;
1090	char *label;
1091
1092	public:
1093	static AsmLabelAttr *CreateImplicit(ASTContext &Ctx, llvm::StringRef Label, SourceRange Loc = SourceRange()) {
1094	auto *A = new (Ctx) AsmLabelAttr(Loc, Ctx, Label, 0);
1095	A->setImplicit(true);
1096	return A;
1097	}
1098
1099	AsmLabelAttr(SourceRange R, ASTContext &Ctx
1100	, llvm::StringRef Label
1101	, unsigned SI
1102	)
1103	: InheritableAttr(attr::AsmLabel, R, SI, false, false)
1104	, labelLength(Label.size()),label(new (Ctx, 1) char[labelLength])
1105	{
1106	if (!Label.empty())
1107	std::memcpy(label, Label.data(), labelLength);
1108	}
1109
1110	AsmLabelAttr *clone(ASTContext &C) const;
1111	void printPretty(raw_ostream &OS,
1112	const PrintingPolicy &Policy) const;
1113	const char *getSpelling() const;
1114	llvm::StringRef getLabel() const {
1115	return llvm::StringRef(label, labelLength);
1116	}
1117	unsigned getLabelLength() const {
1118	return labelLength;
1119	}
1120	void setLabel(ASTContext &C, llvm::StringRef S) {
1121	labelLength = S.size();
1122	this->label = new (C, 1) char [labelLength];
1123	if (!S.empty())
1124	std::memcpy(this->label, S.data(), labelLength);
1125	}
1126
1127
1128
1129	static bool classof(const Attr *A) { return A->getKind() == attr::AsmLabel; }
1130	};
1131
1132	class AssertCapabilityAttr : public InheritableAttr {
1133	unsigned args_Size;
1134	Expr * *args_;
1135
1136	public:
1137	enum Spelling {
1138	GNU_assert_capability = 0,
1139	CXX11_clang_assert_capability = 1,
1140	GNU_assert_shared_capability = 2,
1141	CXX11_clang_assert_shared_capability = 3
1142	};
1143
1144	static AssertCapabilityAttr CreateImplicit(ASTContext &Ctx, Spelling S, Expr *Args, unsigned ArgsSize, SourceRange Loc = SourceRange()) {
1145	auto *A = new (Ctx) AssertCapabilityAttr(Loc, Ctx, Args, ArgsSize, S);
1146	A->setImplicit(true);
1147	return A;
1148	}
1149
1150	AssertCapabilityAttr(SourceRange R, ASTContext &Ctx
1151	, Expr * *Args, unsigned ArgsSize
1152	, unsigned SI
1153	)
1154	: InheritableAttr(attr::AssertCapability, R, SI, true, true)
1155	, args_Size(ArgsSize), args_(new (Ctx, 16) Expr *[args_Size])
1156	{
1157	std::copy(Args, Args + args_Size, args_);
1158	}
1159
1160	AssertCapabilityAttr(SourceRange R, ASTContext &Ctx
1161	, unsigned SI
1162	)
1163	: InheritableAttr(attr::AssertCapability, R, SI, true, true)
1164	, args_Size(0), args_(nullptr)
1165	{
1166	}
1167
1168	AssertCapabilityAttr *clone(ASTContext &C) const;
1169	void printPretty(raw_ostream &OS,
1170	const PrintingPolicy &Policy) const;
1171	const char *getSpelling() const;
1172	Spelling getSemanticSpelling() const {
1173	switch (SpellingListIndex) {
1174	default: llvm_unreachable("Unknown spelling list index")::llvm::llvm_unreachable_internal("Unknown spelling list index" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 1174);
1175	case 0: return GNU_assert_capability;
1176	case 1: return CXX11_clang_assert_capability;
1177	case 2: return GNU_assert_shared_capability;
1178	case 3: return CXX11_clang_assert_shared_capability;
1179	}
1180	}
1181	bool isShared() const { return SpellingListIndex == 2 \|\|
1182	SpellingListIndex == 3; }
1183	typedef Expr ** args_iterator;
1184	args_iterator args_begin() const { return args_; }
1185	args_iterator args_end() const { return args_ + args_Size; }
1186	unsigned args_size() const { return args_Size; }
1187	llvm::iterator_range<args_iterator> args() const { return llvm::make_range(args_begin(), args_end()); }
1188
1189
1190
1191
1192	static bool classof(const Attr *A) { return A->getKind() == attr::AssertCapability; }
1193	};
1194
1195	class AssertExclusiveLockAttr : public InheritableAttr {
1196	unsigned args_Size;
1197	Expr * *args_;
1198
1199	public:
1200	static AssertExclusiveLockAttr CreateImplicit(ASTContext &Ctx, Expr *Args, unsigned ArgsSize, SourceRange Loc = SourceRange()) {
1201	auto *A = new (Ctx) AssertExclusiveLockAttr(Loc, Ctx, Args, ArgsSize, 0);
1202	A->setImplicit(true);
1203	return A;
1204	}
1205
1206	AssertExclusiveLockAttr(SourceRange R, ASTContext &Ctx
1207	, Expr * *Args, unsigned ArgsSize
1208	, unsigned SI
1209	)
1210	: InheritableAttr(attr::AssertExclusiveLock, R, SI, true, true)
1211	, args_Size(ArgsSize), args_(new (Ctx, 16) Expr *[args_Size])
1212	{
1213	std::copy(Args, Args + args_Size, args_);
1214	}
1215
1216	AssertExclusiveLockAttr(SourceRange R, ASTContext &Ctx
1217	, unsigned SI
1218	)
1219	: InheritableAttr(attr::AssertExclusiveLock, R, SI, true, true)
1220	, args_Size(0), args_(nullptr)
1221	{
1222	}
1223
1224	AssertExclusiveLockAttr *clone(ASTContext &C) const;
1225	void printPretty(raw_ostream &OS,
1226	const PrintingPolicy &Policy) const;
1227	const char *getSpelling() const;
1228	typedef Expr ** args_iterator;
1229	args_iterator args_begin() const { return args_; }
1230	args_iterator args_end() const { return args_ + args_Size; }
1231	unsigned args_size() const { return args_Size; }
1232	llvm::iterator_range<args_iterator> args() const { return llvm::make_range(args_begin(), args_end()); }
1233
1234
1235
1236
1237	static bool classof(const Attr *A) { return A->getKind() == attr::AssertExclusiveLock; }
1238	};
1239
1240	class AssertSharedLockAttr : public InheritableAttr {
1241	unsigned args_Size;
1242	Expr * *args_;
1243
1244	public:
1245	static AssertSharedLockAttr CreateImplicit(ASTContext &Ctx, Expr *Args, unsigned ArgsSize, SourceRange Loc = SourceRange()) {
1246	auto *A = new (Ctx) AssertSharedLockAttr(Loc, Ctx, Args, ArgsSize, 0);
1247	A->setImplicit(true);
1248	return A;
1249	}
1250
1251	AssertSharedLockAttr(SourceRange R, ASTContext &Ctx
1252	, Expr * *Args, unsigned ArgsSize
1253	, unsigned SI
1254	)
1255	: InheritableAttr(attr::AssertSharedLock, R, SI, true, true)
1256	, args_Size(ArgsSize), args_(new (Ctx, 16) Expr *[args_Size])
1257	{
1258	std::copy(Args, Args + args_Size, args_);
1259	}
1260
1261	AssertSharedLockAttr(SourceRange R, ASTContext &Ctx
1262	, unsigned SI
1263	)
1264	: InheritableAttr(attr::AssertSharedLock, R, SI, true, true)
1265	, args_Size(0), args_(nullptr)
1266	{
1267	}
1268
1269	AssertSharedLockAttr *clone(ASTContext &C) const;
1270	void printPretty(raw_ostream &OS,
1271	const PrintingPolicy &Policy) const;
1272	const char *getSpelling() const;
1273	typedef Expr ** args_iterator;
1274	args_iterator args_begin() const { return args_; }
1275	args_iterator args_end() const { return args_ + args_Size; }
1276	unsigned args_size() const { return args_Size; }
1277	llvm::iterator_range<args_iterator> args() const { return llvm::make_range(args_begin(), args_end()); }
1278
1279
1280
1281
1282	static bool classof(const Attr *A) { return A->getKind() == attr::AssertSharedLock; }
1283	};
1284
1285	class AssumeAlignedAttr : public InheritableAttr {
1286	Expr * alignment;
1287
1288	Expr * offset;
1289
1290	public:
1291	static AssumeAlignedAttr CreateImplicit(ASTContext &Ctx, Expr Alignment, Expr * Offset, SourceRange Loc = SourceRange()) {
1292	auto *A = new (Ctx) AssumeAlignedAttr(Loc, Ctx, Alignment, Offset, 0);
1293	A->setImplicit(true);
1294	return A;
1295	}
1296
1297	AssumeAlignedAttr(SourceRange R, ASTContext &Ctx
1298	, Expr * Alignment
1299	, Expr * Offset
1300	, unsigned SI
1301	)
1302	: InheritableAttr(attr::AssumeAligned, R, SI, false, false)
1303	, alignment(Alignment)
1304	, offset(Offset)
1305	{
1306	}
1307
1308	AssumeAlignedAttr(SourceRange R, ASTContext &Ctx
1309	, Expr * Alignment
1310	, unsigned SI
1311	)
1312	: InheritableAttr(attr::AssumeAligned, R, SI, false, false)
1313	, alignment(Alignment)
1314	, offset()
1315	{
1316	}
1317
1318	AssumeAlignedAttr *clone(ASTContext &C) const;
1319	void printPretty(raw_ostream &OS,
1320	const PrintingPolicy &Policy) const;
1321	const char *getSpelling() const;
1322	Expr * getAlignment() const {
1323	return alignment;
1324	}
1325
1326	Expr * getOffset() const {
1327	return offset;
1328	}
1329
1330
1331
1332	static bool classof(const Attr *A) { return A->getKind() == attr::AssumeAligned; }
1333	};
1334
1335	class AvailabilityAttr : public InheritableAttr {
1336	IdentifierInfo * platform;
1337
1338	VersionTuple introduced;
1339
1340
1341	VersionTuple deprecated;
1342
1343
1344	VersionTuple obsoleted;
1345
1346
1347	bool unavailable;
1348
1349	unsigned messageLength;
1350	char *message;
1351
1352	bool strict;
1353
1354	unsigned replacementLength;
1355	char *replacement;
1356
1357	public:
1358	static AvailabilityAttr CreateImplicit(ASTContext &Ctx, IdentifierInfo Platform, VersionTuple Introduced, VersionTuple Deprecated, VersionTuple Obsoleted, bool Unavailable, llvm::StringRef Message, bool Strict, llvm::StringRef Replacement, SourceRange Loc = SourceRange()) {
1359	auto *A = new (Ctx) AvailabilityAttr(Loc, Ctx, Platform, Introduced, Deprecated, Obsoleted, Unavailable, Message, Strict, Replacement, 0);
1360	A->setImplicit(true);
1361	return A;
1362	}
1363
1364	AvailabilityAttr(SourceRange R, ASTContext &Ctx
1365	, IdentifierInfo * Platform
1366	, VersionTuple Introduced
1367	, VersionTuple Deprecated
1368	, VersionTuple Obsoleted
1369	, bool Unavailable
1370	, llvm::StringRef Message
1371	, bool Strict
1372	, llvm::StringRef Replacement
1373	, unsigned SI
1374	)
1375	: InheritableAttr(attr::Availability, R, SI, false, true)
1376	, platform(Platform)
1377	, introduced(Introduced)
1378	, deprecated(Deprecated)
1379	, obsoleted(Obsoleted)
1380	, unavailable(Unavailable)
1381	, messageLength(Message.size()),message(new (Ctx, 1) char[messageLength])
1382	, strict(Strict)
1383	, replacementLength(Replacement.size()),replacement(new (Ctx, 1) char[replacementLength])
1384	{
1385	if (!Message.empty())
1386	std::memcpy(message, Message.data(), messageLength);
1387	if (!Replacement.empty())
1388	std::memcpy(replacement, Replacement.data(), replacementLength);
1389	}
1390
1391	AvailabilityAttr *clone(ASTContext &C) const;
1392	void printPretty(raw_ostream &OS,
1393	const PrintingPolicy &Policy) const;
1394	const char *getSpelling() const;
1395	IdentifierInfo * getPlatform() const {
1396	return platform;
1397	}
1398
1399	VersionTuple getIntroduced() const {
1400	return introduced;
1401	}
1402	void setIntroduced(ASTContext &C, VersionTuple V) {
1403	introduced = V;
1404	}
1405
1406	VersionTuple getDeprecated() const {
1407	return deprecated;
1408	}
1409	void setDeprecated(ASTContext &C, VersionTuple V) {
1410	deprecated = V;
1411	}
1412
1413	VersionTuple getObsoleted() const {
1414	return obsoleted;
1415	}
1416	void setObsoleted(ASTContext &C, VersionTuple V) {
1417	obsoleted = V;
1418	}
1419
1420	bool getUnavailable() const {
1421	return unavailable;
1422	}
1423
1424	llvm::StringRef getMessage() const {
1425	return llvm::StringRef(message, messageLength);
1426	}
1427	unsigned getMessageLength() const {
1428	return messageLength;
1429	}
1430	void setMessage(ASTContext &C, llvm::StringRef S) {
1431	messageLength = S.size();
1432	this->message = new (C, 1) char [messageLength];
1433	if (!S.empty())
1434	std::memcpy(this->message, S.data(), messageLength);
1435	}
1436
1437	bool getStrict() const {
1438	return strict;
1439	}
1440
1441	llvm::StringRef getReplacement() const {
1442	return llvm::StringRef(replacement, replacementLength);
1443	}
1444	unsigned getReplacementLength() const {
1445	return replacementLength;
1446	}
1447	void setReplacement(ASTContext &C, llvm::StringRef S) {
1448	replacementLength = S.size();
1449	this->replacement = new (C, 1) char [replacementLength];
1450	if (!S.empty())
1451	std::memcpy(this->replacement, S.data(), replacementLength);
1452	}
1453
1454	static llvm::StringRef getPrettyPlatformName(llvm::StringRef Platform) {
1455	return llvm::StringSwitch<llvm::StringRef>(Platform)
1456	.Case("android", "Android")
1457	.Case("ios", "iOS")
1458	.Case("macos", "macOS")
1459	.Case("tvos", "tvOS")
1460	.Case("watchos", "watchOS")
1461	.Case("ios_app_extension", "iOS (App Extension)")
1462	.Case("macos_app_extension", "macOS (App Extension)")
1463	.Case("tvos_app_extension", "tvOS (App Extension)")
1464	.Case("watchos_app_extension", "watchOS (App Extension)")
1465	.Default(llvm::StringRef());
1466	}
1467	static llvm::StringRef getPlatformNameSourceSpelling(llvm::StringRef Platform) {
1468	return llvm::StringSwitch<llvm::StringRef>(Platform)
1469	.Case("ios", "iOS")
1470	.Case("macos", "macOS")
1471	.Case("tvos", "tvOS")
1472	.Case("watchos", "watchOS")
1473	.Case("ios_app_extension", "iOSApplicationExtension")
1474	.Case("macos_app_extension", "macOSApplicationExtension")
1475	.Case("tvos_app_extension", "tvOSApplicationExtension")
1476	.Case("watchos_app_extension", "watchOSApplicationExtension")