1 //===- IndexSymbol.h - Types and functions for indexing symbols -*- C++ -*-===// 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 9 #ifndef LLVM_CLANG_INDEX_INDEXSYMBOL_H 10 #define LLVM_CLANG_INDEX_INDEXSYMBOL_H 11 12 #include "clang/Basic/LLVM.h" 13 #include "clang/Lex/MacroInfo.h" 14 #include "llvm/ADT/STLExtras.h" 15 #include "llvm/Support/DataTypes.h" 16 17 namespace clang { 18 class Decl; 19 class LangOptions; 20 21 namespace index { 22 23 enum class SymbolKind : uint8_t { 24 Unknown, 25 26 Module, 27 Namespace, 28 NamespaceAlias, 29 Macro, 30 31 Enum, 32 Struct, 33 Class, 34 Protocol, 35 Extension, 36 Union, 37 TypeAlias, 38 39 Function, 40 Variable, 41 Field, 42 EnumConstant, 43 44 InstanceMethod, 45 ClassMethod, 46 StaticMethod, 47 InstanceProperty, 48 ClassProperty, 49 StaticProperty, 50 51 Constructor, 52 Destructor, 53 ConversionFunction, 54 55 Parameter, 56 Using, 57 }; 58 59 enum class SymbolLanguage : uint8_t { 60 C, 61 ObjC, 62 CXX, 63 Swift, 64 }; 65 66 /// Language specific sub-kinds. 67 enum class SymbolSubKind : uint8_t { 68 None, 69 CXXCopyConstructor, 70 CXXMoveConstructor, 71 AccessorGetter, 72 AccessorSetter, 73 UsingTypename, 74 UsingValue, 75 }; 76 77 typedef uint16_t SymbolPropertySet; 78 /// Set of properties that provide additional info about a symbol. 79 enum class SymbolProperty : SymbolPropertySet { 80 Generic = 1 << 0, 81 TemplatePartialSpecialization = 1 << 1, 82 TemplateSpecialization = 1 << 2, 83 UnitTest = 1 << 3, 84 IBAnnotated = 1 << 4, 85 IBOutletCollection = 1 << 5, 86 GKInspectable = 1 << 6, 87 Local = 1 << 7, 88 /// Symbol is part of a protocol interface. 89 ProtocolInterface = 1 << 8, 90 }; 91 static const unsigned SymbolPropertyBitNum = 9; 92 93 /// Set of roles that are attributed to symbol occurrences. 94 /// 95 /// Low 9 bits of clang-c/include/Index.h CXSymbolRole mirrors this enum. 96 enum class SymbolRole : uint32_t { 97 Declaration = 1 << 0, 98 Definition = 1 << 1, 99 Reference = 1 << 2, 100 Read = 1 << 3, 101 Write = 1 << 4, 102 Call = 1 << 5, 103 Dynamic = 1 << 6, 104 AddressOf = 1 << 7, 105 Implicit = 1 << 8, 106 // FIXME: this is not mirrored in CXSymbolRole. 107 // Note that macro occurrences aren't currently supported in libclang. 108 Undefinition = 1 << 9, // macro #undef 109 110 // Relation roles. 111 RelationChildOf = 1 << 10, 112 RelationBaseOf = 1 << 11, 113 RelationOverrideOf = 1 << 12, 114 RelationReceivedBy = 1 << 13, 115 RelationCalledBy = 1 << 14, 116 RelationExtendedBy = 1 << 15, 117 RelationAccessorOf = 1 << 16, 118 RelationContainedBy = 1 << 17, 119 RelationIBTypeOf = 1 << 18, 120 RelationSpecializationOf = 1 << 19, 121 122 // Symbol only references the name of the object as written. For example, a 123 // constructor references the class declaration using that role. 124 NameReference = 1 << 20, 125 }; 126 static const unsigned SymbolRoleBitNum = 21; 127 typedef unsigned SymbolRoleSet; 128 129 /// Represents a relation to another symbol for a symbol occurrence. 130 struct SymbolRelation { 131 SymbolRoleSet Roles; 132 const Decl *RelatedSymbol; 133 134 SymbolRelation(SymbolRoleSet Roles, const Decl *Sym) 135 : Roles(Roles), RelatedSymbol(Sym) {} 136 }; 137 138 struct SymbolInfo { 139 SymbolKind Kind; 140 SymbolSubKind SubKind; 141 SymbolLanguage Lang; 142 SymbolPropertySet Properties; 143 }; 144 145 SymbolInfo getSymbolInfo(const Decl *D); 146 147 SymbolInfo getSymbolInfoForMacro(const MacroInfo &MI); 148 149 bool isFunctionLocalSymbol(const Decl *D); 150 151 void applyForEachSymbolRole(SymbolRoleSet Roles, 152 llvm::function_ref<void(SymbolRole)> Fn); 153 bool applyForEachSymbolRoleInterruptible(SymbolRoleSet Roles, 154 llvm::function_ref<bool(SymbolRole)> Fn); 155 void printSymbolRoles(SymbolRoleSet Roles, raw_ostream &OS); 156 157 /// \returns true if no name was printed, false otherwise. 158 bool printSymbolName(const Decl *D, const LangOptions &LO, raw_ostream &OS); 159 160 StringRef getSymbolKindString(SymbolKind K); 161 StringRef getSymbolSubKindString(SymbolSubKind K); 162 StringRef getSymbolLanguageString(SymbolLanguage K); 163 164 void applyForEachSymbolProperty(SymbolPropertySet Props, 165 llvm::function_ref<void(SymbolProperty)> Fn); 166 void printSymbolProperties(SymbolPropertySet Props, raw_ostream &OS); 167 168 } // namespace index 169 } // namespace clang 170 171 #endif 172