reference, declarationdefinition
definition → references, declarations, derived classes, virtual overrides
reference to multiple definitions → definitions
unreferenced
    1
    2
    3
    4
    5
    6
    7
    8
    9
   10
   11
   12
   13
   14
   15
   16
   17
   18
   19
   20
   21
   22
   23
   24
   25
   26
   27
   28
   29
   30
   31
   32
   33
   34
   35
   36
   37
   38
   39
   40
   41
   42
   43
   44
   45
   46
   47
   48
   49
   50
   51
   52
   53
   54
   55
   56
   57
   58
   59
   60
   61
   62
   63
   64
   65
   66
   67
   68
   69
   70
   71
   72
   73
   74
   75
   76
   77
   78
   79
   80
   81
   82
   83
   84
   85
   86
   87
   88
   89
   90
   91
   92
   93
   94
   95
   96
   97
   98
   99
  100
  101
  102
  103
  104
  105
  106
  107
  108
  109
  110
  111
  112
  113
  114
  115
  116
  117
  118
  119
  120
  121
  122
  123
  124
  125
  126
  127
  128
  129
  130
  131
  132
  133
  134
  135
  136
  137
  138
  139
  140
  141
  142
  143
  144
  145
  146
  147
  148
  149
  150
  151
  152
  153
  154
  155
  156
  157
  158
  159
  160
  161
  162
  163
  164
  165
  166
  167
  168
  169
  170
  171
//===- IndexSymbol.h - Types and functions for indexing symbols -*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_CLANG_INDEX_INDEXSYMBOL_H
#define LLVM_CLANG_INDEX_INDEXSYMBOL_H

#include "clang/Basic/LLVM.h"
#include "clang/Lex/MacroInfo.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/Support/DataTypes.h"

namespace clang {
  class Decl;
  class LangOptions;

namespace index {

enum class SymbolKind : uint8_t {
  Unknown,

  Module,
  Namespace,
  NamespaceAlias,
  Macro,

  Enum,
  Struct,
  Class,
  Protocol,
  Extension,
  Union,
  TypeAlias,

  Function,
  Variable,
  Field,
  EnumConstant,

  InstanceMethod,
  ClassMethod,
  StaticMethod,
  InstanceProperty,
  ClassProperty,
  StaticProperty,

  Constructor,
  Destructor,
  ConversionFunction,

  Parameter,
  Using,
};

enum class SymbolLanguage : uint8_t {
  C,
  ObjC,
  CXX,
  Swift,
};

/// Language specific sub-kinds.
enum class SymbolSubKind : uint8_t {
  None,
  CXXCopyConstructor,
  CXXMoveConstructor,
  AccessorGetter,
  AccessorSetter,
  UsingTypename,
  UsingValue,
};

typedef uint16_t SymbolPropertySet;
/// Set of properties that provide additional info about a symbol.
enum class SymbolProperty : SymbolPropertySet {
  Generic                       = 1 << 0,
  TemplatePartialSpecialization = 1 << 1,
  TemplateSpecialization        = 1 << 2,
  UnitTest                      = 1 << 3,
  IBAnnotated                   = 1 << 4,
  IBOutletCollection            = 1 << 5,
  GKInspectable                 = 1 << 6,
  Local                         = 1 << 7,
  /// Symbol is part of a protocol interface.
  ProtocolInterface             = 1 << 8,
};
static const unsigned SymbolPropertyBitNum = 9;

/// Set of roles that are attributed to symbol occurrences.
///
/// Low 9 bits of clang-c/include/Index.h CXSymbolRole mirrors this enum.
enum class SymbolRole : uint32_t {
  Declaration = 1 << 0,
  Definition = 1 << 1,
  Reference = 1 << 2,
  Read = 1 << 3,
  Write = 1 << 4,
  Call = 1 << 5,
  Dynamic = 1 << 6,
  AddressOf = 1 << 7,
  Implicit = 1 << 8,
  // FIXME: this is not mirrored in CXSymbolRole.
  // Note that macro occurrences aren't currently supported in libclang.
  Undefinition = 1 << 9, // macro #undef

  // Relation roles.
  RelationChildOf = 1 << 10,
  RelationBaseOf = 1 << 11,
  RelationOverrideOf = 1 << 12,
  RelationReceivedBy = 1 << 13,
  RelationCalledBy = 1 << 14,
  RelationExtendedBy = 1 << 15,
  RelationAccessorOf = 1 << 16,
  RelationContainedBy = 1 << 17,
  RelationIBTypeOf = 1 << 18,
  RelationSpecializationOf = 1 << 19,

  // Symbol only references the name of the object as written. For example, a
  // constructor references the class declaration using that role.
  NameReference = 1 << 20,
};
static const unsigned SymbolRoleBitNum = 21;
typedef unsigned SymbolRoleSet;

/// Represents a relation to another symbol for a symbol occurrence.
struct SymbolRelation {
  SymbolRoleSet Roles;
  const Decl *RelatedSymbol;

  SymbolRelation(SymbolRoleSet Roles, const Decl *Sym)
    : Roles(Roles), RelatedSymbol(Sym) {}
};

struct SymbolInfo {
  SymbolKind Kind;
  SymbolSubKind SubKind;
  SymbolLanguage Lang;
  SymbolPropertySet Properties;
};

SymbolInfo getSymbolInfo(const Decl *D);

SymbolInfo getSymbolInfoForMacro(const MacroInfo &MI);

bool isFunctionLocalSymbol(const Decl *D);

void applyForEachSymbolRole(SymbolRoleSet Roles,
                            llvm::function_ref<void(SymbolRole)> Fn);
bool applyForEachSymbolRoleInterruptible(SymbolRoleSet Roles,
                            llvm::function_ref<bool(SymbolRole)> Fn);
void printSymbolRoles(SymbolRoleSet Roles, raw_ostream &OS);

/// \returns true if no name was printed, false otherwise.
bool printSymbolName(const Decl *D, const LangOptions &LO, raw_ostream &OS);

StringRef getSymbolKindString(SymbolKind K);
StringRef getSymbolSubKindString(SymbolSubKind K);
StringRef getSymbolLanguageString(SymbolLanguage K);

void applyForEachSymbolProperty(SymbolPropertySet Props,
                            llvm::function_ref<void(SymbolProperty)> Fn);
void printSymbolProperties(SymbolPropertySet Props, raw_ostream &OS);

} // namespace index
} // namespace clang

#endif