clang  10.0.0git
IndexSymbol.cpp
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1 //===--- IndexSymbol.cpp - Types and functions for indexing symbols -------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
10 #include "clang/AST/Attr.h"
11 #include "clang/AST/DeclCXX.h"
12 #include "clang/AST/DeclObjC.h"
13 #include "clang/AST/DeclTemplate.h"
15 #include "clang/Lex/MacroInfo.h"
16 
17 using namespace clang;
18 using namespace clang::index;
19 
20 /// \returns true if \c D is a subclass of 'XCTestCase'.
21 static bool isUnitTestCase(const ObjCInterfaceDecl *D) {
22  if (!D)
23  return false;
24  while (const ObjCInterfaceDecl *SuperD = D->getSuperClass()) {
25  if (SuperD->getName() == "XCTestCase")
26  return true;
27  D = SuperD;
28  }
29  return false;
30 }
31 
32 /// \returns true if \c D is in a subclass of 'XCTestCase', returns void, has
33 /// no parameters, and its name starts with 'test'.
34 static bool isUnitTest(const ObjCMethodDecl *D) {
35  if (!D->parameters().empty())
36  return false;
37  if (!D->getReturnType()->isVoidType())
38  return false;
39  if (!D->getSelector().getNameForSlot(0).startswith("test"))
40  return false;
41  return isUnitTestCase(D->getClassInterface());
42 }
43 
44 static void checkForIBOutlets(const Decl *D, SymbolPropertySet &PropSet) {
45  if (D->hasAttr<IBOutletAttr>()) {
47  } else if (D->hasAttr<IBOutletCollectionAttr>()) {
50  }
51 }
52 
54  assert(D);
55 
56  if (isa<ParmVarDecl>(D))
57  return true;
58 
59  if (isa<ObjCTypeParamDecl>(D))
60  return true;
61 
62  if (isa<UsingDirectiveDecl>(D))
63  return false;
64  if (!D->getParentFunctionOrMethod())
65  return false;
66 
67  if (const NamedDecl *ND = dyn_cast<NamedDecl>(D)) {
68  switch (ND->getFormalLinkage()) {
69  case NoLinkage:
70  case InternalLinkage:
71  return true;
72  case VisibleNoLinkage:
75  llvm_unreachable("Not a sema linkage");
76  case ModuleLinkage:
77  case ExternalLinkage:
78  return false;
79  }
80  }
81 
82  return true;
83 }
84 
86  assert(D);
87  SymbolInfo Info;
91  Info.Lang = SymbolLanguage::C;
92 
93  if (isFunctionLocalSymbol(D)) {
95  }
96  if (isa<ObjCProtocolDecl>(D->getDeclContext())) {
98  }
99 
100  if (auto *VT = dyn_cast<VarTemplateDecl>(D)) {
102  Info.Lang = SymbolLanguage::CXX;
103  // All other fields are filled from the templated decl.
104  D = VT->getTemplatedDecl();
105  }
106 
107  if (const TagDecl *TD = dyn_cast<TagDecl>(D)) {
108  switch (TD->getTagKind()) {
109  case TTK_Struct:
110  Info.Kind = SymbolKind::Struct; break;
111  case TTK_Union:
112  Info.Kind = SymbolKind::Union; break;
113  case TTK_Class:
114  Info.Kind = SymbolKind::Class;
115  Info.Lang = SymbolLanguage::CXX;
116  break;
117  case TTK_Interface:
118  Info.Kind = SymbolKind::Protocol;
119  Info.Lang = SymbolLanguage::CXX;
120  break;
121  case TTK_Enum:
122  Info.Kind = SymbolKind::Enum; break;
123  }
124 
125  if (const CXXRecordDecl *CXXRec = dyn_cast<CXXRecordDecl>(D)) {
126  if (!CXXRec->isCLike()) {
127  Info.Lang = SymbolLanguage::CXX;
128  if (CXXRec->getDescribedClassTemplate()) {
130  }
131  }
132  }
133 
134  if (isa<ClassTemplatePartialSpecializationDecl>(D)) {
136  Info.Properties |=
138  } else if (isa<ClassTemplateSpecializationDecl>(D)) {
140  Info.Properties |=
142  }
143 
144  } else if (auto *VD = dyn_cast<VarDecl>(D)) {
145  Info.Kind = SymbolKind::Variable;
146  if (isa<ParmVarDecl>(D)) {
148  } else if (isa<CXXRecordDecl>(D->getDeclContext())) {
150  Info.Lang = SymbolLanguage::CXX;
151  }
152 
153  if (isa<VarTemplatePartialSpecializationDecl>(D)) {
154  Info.Lang = SymbolLanguage::CXX;
156  Info.Properties |=
158  } else if (isa<VarTemplateSpecializationDecl>(D)) {
159  Info.Lang = SymbolLanguage::CXX;
161  Info.Properties |=
163  } else if (VD->getDescribedVarTemplate()) {
164  Info.Lang = SymbolLanguage::CXX;
166  }
167 
168  } else {
169  switch (D->getKind()) {
170  case Decl::Import:
171  Info.Kind = SymbolKind::Module;
172  break;
173  case Decl::Typedef:
174  Info.Kind = SymbolKind::TypeAlias; break; // Lang = C
175  case Decl::Function:
176  Info.Kind = SymbolKind::Function;
177  break;
178  case Decl::Field:
179  case Decl::IndirectField:
180  Info.Kind = SymbolKind::Field;
181  if (const CXXRecordDecl *
182  CXXRec = dyn_cast<CXXRecordDecl>(D->getDeclContext())) {
183  if (!CXXRec->isCLike())
184  Info.Lang = SymbolLanguage::CXX;
185  }
186  break;
187  case Decl::EnumConstant:
188  Info.Kind = SymbolKind::EnumConstant; break;
189  case Decl::ObjCInterface:
190  case Decl::ObjCImplementation: {
191  Info.Kind = SymbolKind::Class;
192  Info.Lang = SymbolLanguage::ObjC;
193  const ObjCInterfaceDecl *ClsD = dyn_cast<ObjCInterfaceDecl>(D);
194  if (!ClsD)
195  ClsD = cast<ObjCImplementationDecl>(D)->getClassInterface();
196  if (isUnitTestCase(ClsD))
198  break;
199  }
200  case Decl::ObjCProtocol:
201  Info.Kind = SymbolKind::Protocol;
202  Info.Lang = SymbolLanguage::ObjC;
203  break;
204  case Decl::ObjCCategory:
205  case Decl::ObjCCategoryImpl: {
207  Info.Lang = SymbolLanguage::ObjC;
208  const ObjCInterfaceDecl *ClsD = nullptr;
209  if (auto *CatD = dyn_cast<ObjCCategoryDecl>(D))
210  ClsD = CatD->getClassInterface();
211  else
212  ClsD = cast<ObjCCategoryImplDecl>(D)->getClassInterface();
213  if (isUnitTestCase(ClsD))
215  break;
216  }
217  case Decl::ObjCMethod: {
218  const ObjCMethodDecl *MD = cast<ObjCMethodDecl>(D);
220  if (MD->isPropertyAccessor()) {
221  if (MD->param_size())
223  else
225  }
226  Info.Lang = SymbolLanguage::ObjC;
227  if (isUnitTest(MD))
229  if (D->hasAttr<IBActionAttr>())
231  break;
232  }
233  case Decl::ObjCProperty:
235  Info.Lang = SymbolLanguage::ObjC;
236  checkForIBOutlets(D, Info.Properties);
237  if (auto *Annot = D->getAttr<AnnotateAttr>()) {
238  if (Annot->getAnnotation() == "gk_inspectable")
240  }
241  break;
242  case Decl::ObjCIvar:
243  Info.Kind = SymbolKind::Field;
244  Info.Lang = SymbolLanguage::ObjC;
245  checkForIBOutlets(D, Info.Properties);
246  break;
247  case Decl::Namespace:
249  Info.Lang = SymbolLanguage::CXX;
250  break;
253  Info.Lang = SymbolLanguage::CXX;
254  break;
255  case Decl::CXXConstructor: {
257  Info.Lang = SymbolLanguage::CXX;
258  auto *CD = cast<CXXConstructorDecl>(D);
259  if (CD->isCopyConstructor())
261  else if (CD->isMoveConstructor())
263  break;
264  }
265  case Decl::CXXDestructor:
267  Info.Lang = SymbolLanguage::CXX;
268  break;
269  case Decl::CXXConversion:
271  Info.Lang = SymbolLanguage::CXX;
272  break;
273  case Decl::CXXMethod: {
274  const CXXMethodDecl *MD = cast<CXXMethodDecl>(D);
275  if (MD->isStatic())
277  else
279  Info.Lang = SymbolLanguage::CXX;
280  break;
281  }
282  case Decl::ClassTemplate:
283  Info.Kind = SymbolKind::Class;
285  Info.Lang = SymbolLanguage::CXX;
286  break;
287  case Decl::FunctionTemplate:
288  Info.Kind = SymbolKind::Function;
290  Info.Lang = SymbolLanguage::CXX;
291  if (const CXXMethodDecl *MD = dyn_cast_or_null<CXXMethodDecl>(
292  cast<FunctionTemplateDecl>(D)->getTemplatedDecl())) {
293  if (isa<CXXConstructorDecl>(MD))
295  else if (isa<CXXDestructorDecl>(MD))
297  else if (isa<CXXConversionDecl>(MD))
299  else {
300  if (MD->isStatic())
302  else
304  }
305  }
306  break;
307  case Decl::TypeAliasTemplate:
309  Info.Lang = SymbolLanguage::CXX;
311  break;
312  case Decl::TypeAlias:
314  Info.Lang = SymbolLanguage::CXX;
315  break;
316  case Decl::UnresolvedUsingTypename:
317  Info.Kind = SymbolKind::Using;
319  Info.Lang = SymbolLanguage::CXX;
321  break;
322  case Decl::UnresolvedUsingValue:
323  Info.Kind = SymbolKind::Using;
325  Info.Lang = SymbolLanguage::CXX;
327  break;
328  case Decl::Using:
329  Info.Kind = SymbolKind::Using;
330  Info.Lang = SymbolLanguage::CXX;
331  break;
332  case Decl::Binding:
333  Info.Kind = SymbolKind::Variable;
334  Info.Lang = SymbolLanguage::CXX;
335  break;
336  case Decl::MSProperty:
338  if (const CXXRecordDecl *CXXRec =
339  dyn_cast<CXXRecordDecl>(D->getDeclContext())) {
340  if (!CXXRec->isCLike())
341  Info.Lang = SymbolLanguage::CXX;
342  }
343  break;
344  case Decl::ClassTemplatePartialSpecialization:
345  case Decl::ClassScopeFunctionSpecialization:
346  case Decl::ClassTemplateSpecialization:
347  case Decl::CXXRecord:
348  case Decl::Enum:
349  case Decl::Record:
350  llvm_unreachable("records handled before");
351  break;
352  case Decl::VarTemplateSpecialization:
353  case Decl::VarTemplatePartialSpecialization:
354  case Decl::ImplicitParam:
355  case Decl::ParmVar:
356  case Decl::Var:
357  case Decl::VarTemplate:
358  llvm_unreachable("variables handled before");
359  break;
360  // Other decls get the 'unknown' kind.
361  default:
362  break;
363  }
364  }
365 
366  if (Info.Kind == SymbolKind::Unknown)
367  return Info;
368 
369  if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
370  if (FD->getTemplatedKind() ==
372  Info.Properties |= (SymbolPropertySet)SymbolProperty::Generic;
373  Info.Properties |=
375  }
376  }
377 
378  if (Info.Properties & (SymbolPropertySet)SymbolProperty::Generic)
379  Info.Lang = SymbolLanguage::CXX;
380 
381  if (auto *attr = D->getExternalSourceSymbolAttr()) {
382  if (attr->getLanguage() == "Swift")
383  Info.Lang = SymbolLanguage::Swift;
384  }
385 
386  return Info;
387 }
388 
390  SymbolInfo Info;
391  Info.Kind = SymbolKind::Macro;
393  Info.Properties = SymbolPropertySet();
394  Info.Lang = SymbolLanguage::C;
395  return Info;
396 }
397 
399  llvm::function_ref<bool(SymbolRole)> Fn) {
400 #define APPLY_FOR_ROLE(Role) \
401  if (Roles & (unsigned)SymbolRole::Role) \
402  if (!Fn(SymbolRole::Role)) \
403  return false;
404 
426 
427 #undef APPLY_FOR_ROLE
428 
429  return true;
430 }
431 
433  llvm::function_ref<void(SymbolRole)> Fn) {
434  applyForEachSymbolRoleInterruptible(Roles, [&](SymbolRole r) -> bool {
435  Fn(r);
436  return true;
437  });
438 }
439 
440 void index::printSymbolRoles(SymbolRoleSet Roles, raw_ostream &OS) {
441  bool VisitedOnce = false;
442  applyForEachSymbolRole(Roles, [&](SymbolRole Role) {
443  if (VisitedOnce)
444  OS << ',';
445  else
446  VisitedOnce = true;
447  switch (Role) {
448  case SymbolRole::Declaration: OS << "Decl"; break;
449  case SymbolRole::Definition: OS << "Def"; break;
450  case SymbolRole::Reference: OS << "Ref"; break;
451  case SymbolRole::Read: OS << "Read"; break;
452  case SymbolRole::Write: OS << "Writ"; break;
453  case SymbolRole::Call: OS << "Call"; break;
454  case SymbolRole::Dynamic: OS << "Dyn"; break;
455  case SymbolRole::AddressOf: OS << "Addr"; break;
456  case SymbolRole::Implicit: OS << "Impl"; break;
457  case SymbolRole::Undefinition: OS << "Undef"; break;
458  case SymbolRole::RelationChildOf: OS << "RelChild"; break;
459  case SymbolRole::RelationBaseOf: OS << "RelBase"; break;
460  case SymbolRole::RelationOverrideOf: OS << "RelOver"; break;
461  case SymbolRole::RelationReceivedBy: OS << "RelRec"; break;
462  case SymbolRole::RelationCalledBy: OS << "RelCall"; break;
463  case SymbolRole::RelationExtendedBy: OS << "RelExt"; break;
464  case SymbolRole::RelationAccessorOf: OS << "RelAcc"; break;
465  case SymbolRole::RelationContainedBy: OS << "RelCont"; break;
466  case SymbolRole::RelationIBTypeOf: OS << "RelIBType"; break;
467  case SymbolRole::RelationSpecializationOf: OS << "RelSpecialization"; break;
468  case SymbolRole::NameReference: OS << "NameReference"; break;
469  }
470  });
471 }
472 
473 bool index::printSymbolName(const Decl *D, const LangOptions &LO,
474  raw_ostream &OS) {
475  if (auto *ND = dyn_cast<NamedDecl>(D)) {
476  PrintingPolicy Policy(LO);
477  // Forward references can have different template argument names. Suppress
478  // the template argument names in constructors to make their name more
479  // stable.
481  DeclarationName DeclName = ND->getDeclName();
482  if (DeclName.isEmpty())
483  return true;
484  DeclName.print(OS, Policy);
485  return false;
486  } else {
487  return true;
488  }
489 }
490 
492  switch (K) {
493  case SymbolKind::Unknown: return "<unknown>";
494  case SymbolKind::Module: return "module";
495  case SymbolKind::Namespace: return "namespace";
496  case SymbolKind::NamespaceAlias: return "namespace-alias";
497  case SymbolKind::Macro: return "macro";
498  case SymbolKind::Enum: return "enum";
499  case SymbolKind::Struct: return "struct";
500  case SymbolKind::Class: return "class";
501  case SymbolKind::Protocol: return "protocol";
502  case SymbolKind::Extension: return "extension";
503  case SymbolKind::Union: return "union";
504  case SymbolKind::TypeAlias: return "type-alias";
505  case SymbolKind::Function: return "function";
506  case SymbolKind::Variable: return "variable";
507  case SymbolKind::Field: return "field";
508  case SymbolKind::EnumConstant: return "enumerator";
509  case SymbolKind::InstanceMethod: return "instance-method";
510  case SymbolKind::ClassMethod: return "class-method";
511  case SymbolKind::StaticMethod: return "static-method";
512  case SymbolKind::InstanceProperty: return "instance-property";
513  case SymbolKind::ClassProperty: return "class-property";
514  case SymbolKind::StaticProperty: return "static-property";
515  case SymbolKind::Constructor: return "constructor";
516  case SymbolKind::Destructor: return "destructor";
517  case SymbolKind::ConversionFunction: return "conversion-func";
518  case SymbolKind::Parameter: return "param";
519  case SymbolKind::Using: return "using";
520  }
521  llvm_unreachable("invalid symbol kind");
522 }
523 
525  switch (K) {
526  case SymbolSubKind::None: return "<none>";
527  case SymbolSubKind::CXXCopyConstructor: return "cxx-copy-ctor";
528  case SymbolSubKind::CXXMoveConstructor: return "cxx-move-ctor";
529  case SymbolSubKind::AccessorGetter: return "acc-get";
530  case SymbolSubKind::AccessorSetter: return "acc-set";
531  case SymbolSubKind::UsingTypename: return "using-typename";
532  case SymbolSubKind::UsingValue: return "using-value";
533  }
534  llvm_unreachable("invalid symbol subkind");
535 }
536 
538  switch (K) {
539  case SymbolLanguage::C: return "C";
540  case SymbolLanguage::ObjC: return "ObjC";
541  case SymbolLanguage::CXX: return "C++";
542  case SymbolLanguage::Swift: return "Swift";
543  }
544  llvm_unreachable("invalid symbol language kind");
545 }
546 
548  llvm::function_ref<void(SymbolProperty)> Fn) {
549 #define APPLY_FOR_PROPERTY(K) \
550  if (Props & (SymbolPropertySet)SymbolProperty::K) \
551  Fn(SymbolProperty::K)
552 
562 
563 #undef APPLY_FOR_PROPERTY
564 }
565 
566 void index::printSymbolProperties(SymbolPropertySet Props, raw_ostream &OS) {
567  bool VisitedOnce = false;
568  applyForEachSymbolProperty(Props, [&](SymbolProperty Prop) {
569  if (VisitedOnce)
570  OS << ',';
571  else
572  VisitedOnce = true;
573  switch (Prop) {
574  case SymbolProperty::Generic: OS << "Gen"; break;
575  case SymbolProperty::TemplatePartialSpecialization: OS << "TPS"; break;
576  case SymbolProperty::TemplateSpecialization: OS << "TS"; break;
577  case SymbolProperty::UnitTest: OS << "test"; break;
578  case SymbolProperty::IBAnnotated: OS << "IB"; break;
579  case SymbolProperty::IBOutletCollection: OS << "IBColl"; break;
580  case SymbolProperty::GKInspectable: OS << "GKI"; break;
581  case SymbolProperty::Local: OS << "local"; break;
582  case SymbolProperty::ProtocolInterface: OS << "protocol"; break;
583  }
584  });
585 }
Represents a function declaration or definition.
Definition: Decl.h:1783
External linkage, which indicates that the entity can be referred to from other translation units...
Definition: Linkage.h:59
if(T->getSizeExpr()) TRY_TO(TraverseStmt(T -> getSizeExpr()))
StringRef getSymbolLanguageString(SymbolLanguage K)
unsigned param_size() const
Definition: DeclObjC.h:342
ObjCInterfaceDecl * getClassInterface()
Definition: DeclObjC.cpp:1155
Internal linkage according to the Modules TS, but can be referred to from other translation units ind...
Definition: Linkage.h:49
void print(raw_ostream &OS, const PrintingPolicy &Policy) const
bool printSymbolName(const Decl *D, const LangOptions &LO, raw_ostream &OS)
No linkage, which means that the entity is unique and can only be referred to from within its scope...
Definition: Linkage.h:26
Decl - This represents one declaration (or definition), e.g.
Definition: DeclBase.h:88
Defines the C++ template declaration subclasses.
uint16_t SymbolPropertySet
Definition: IndexSymbol.h:77
Defines the clang::MacroInfo and clang::MacroDirective classes.
Symbol is part of a protocol interface.
bool isEmpty() const
Evaluates true when this declaration name is empty.
const DeclContext * getParentFunctionOrMethod() const
If this decl is defined inside a function/method/block it returns the corresponding DeclContext...
Definition: DeclBase.cpp:254
The "union" keyword.
Definition: Type.h:5195
The "__interface" keyword.
Definition: Type.h:5192
ObjCMethodDecl - Represents an instance or class method declaration.
Definition: DeclObjC.h:138
Describes how types, statements, expressions, and declarations should be printed. ...
Definition: PrettyPrinter.h:47
bool isStatic() const
Definition: DeclCXX.cpp:1983
static bool isUnitTestCase(const ObjCInterfaceDecl *D)
Definition: IndexSymbol.cpp:21
bool applyForEachSymbolRoleInterruptible(SymbolRoleSet Roles, llvm::function_ref< bool(SymbolRole)> Fn)
SymbolSubKind
Language specific sub-kinds.
Definition: IndexSymbol.h:67
#define APPLY_FOR_PROPERTY(K)
void applyForEachSymbolProperty(SymbolPropertySet Props, llvm::function_ref< void(SymbolProperty)> Fn)
SymbolRole
Set of roles that are attributed to symbol occurrences.
Definition: IndexSymbol.h:96
bool isFunctionLocalSymbol(const Decl *D)
Definition: IndexSymbol.cpp:53
StringRef getSymbolKindString(SymbolKind K)
Keeps track of the various options that can be enabled, which controls the dialect of C or C++ that i...
Definition: LangOptions.h:53
StringRef getSymbolSubKindString(SymbolSubKind K)
Represents an ObjC class declaration.
Definition: DeclObjC.h:1186
static bool isUnitTest(const ObjCMethodDecl *D)
Definition: IndexSymbol.cpp:34
QualType getReturnType() const
Definition: DeclObjC.h:324
unsigned SuppressTemplateArgsInCXXConstructors
When true, suppresses printing template arguments in names of C++ constructors.
unsigned SymbolRoleSet
Definition: IndexSymbol.h:127
bool hasAttr() const
Definition: DeclBase.h:542
Module linkage, which indicates that the entity can be referred to from other translation units withi...
Definition: Linkage.h:55
void printSymbolProperties(SymbolPropertySet Props, raw_ostream &OS)
#define APPLY_FOR_ROLE(Role)
StringRef getNameForSlot(unsigned argIndex) const
Retrieve the name at a given position in the selector.
DeclContext * getDeclContext()
Definition: DeclBase.h:438
ObjCInterfaceDecl * getSuperClass() const
Definition: DeclObjC.cpp:337
bool isInstanceMethod() const
Definition: DeclObjC.h:423
Selector getSelector() const
Definition: DeclObjC.h:322
static void checkForIBOutlets(const Decl *D, SymbolPropertySet &PropSet)
Definition: IndexSymbol.cpp:44
The "struct" keyword.
Definition: Type.h:5189
Represents the declaration of a struct/union/class/enum.
Definition: Decl.h:3219
Represents a static or instance method of a struct/union/class.
Definition: DeclCXX.h:1931
void applyForEachSymbolRole(SymbolRoleSet Roles, llvm::function_ref< void(SymbolRole)> Fn)
Dataflow Directional Tag Classes.
External linkage within a unique namespace.
Definition: Linkage.h:40
The name of a declaration.
Kind getKind() const
Definition: DeclBase.h:432
Encapsulates the data about a macro definition (e.g.
Definition: MacroInfo.h:39
SymbolProperty
Set of properties that provide additional info about a symbol.
Definition: IndexSymbol.h:79
void printSymbolRoles(SymbolRoleSet Roles, raw_ostream &OS)
T * getAttr() const
Definition: DeclBase.h:538
Internal linkage, which indicates that the entity can be referred to from within the translation unit...
Definition: Linkage.h:31
The "class" keyword.
Definition: Type.h:5198
Defines the C++ Decl subclasses, other than those for templates (found in DeclTemplate.h) and friends (in DeclFriend.h).
SymbolInfo getSymbolInfo(const Decl *D)
Definition: IndexSymbol.cpp:85
Represents a C++ struct/union/class.
Definition: DeclCXX.h:253
bool isVoidType() const
Definition: Type.h:6777
No linkage according to the standard, but is visible from other translation units because of types de...
Definition: Linkage.h:44
The "enum" keyword.
Definition: Type.h:5201
SymbolInfo getSymbolInfoForMacro(const MacroInfo &MI)
This represents a decl that may have a name.
Definition: Decl.h:223
bool isPropertyAccessor() const
Definition: DeclObjC.h:433
SymbolPropertySet Properties
Definition: IndexSymbol.h:142
ArrayRef< ParmVarDecl * > parameters() const
Definition: DeclObjC.h:368