Add Query*::file_id to allow textDocument/hover on declarations

Also change StorageClass storage to uint8_t

index_tests/macros/complex.cc

@@ -44,7 +44,7 @@ OUTPUT:
       "bases": [],
       "derived": [],
       "vars": [],
-      "uses": ["12:5-12:10|0|1|16420"],
+      "uses": ["12:5-12:10|0|1|16420", "12:5-12:10|0|1|64|0"],
       "callees": []
     }],
   "usr2type": [{
@@ -73,7 +73,7 @@ OUTPUT:
       "spell": "9:11-9:16|0|1|2",
       "extent": "9:1-9:20|0|1|0",
       "type": 53,
-      "uses": ["12:14-12:19|0|1|12"],
+      "uses": ["12:14-12:19|0|1|12", "12:14-12:19|0|1|64|0"],
       "kind": 13,
       "storage": 0
     }, {

index_tests/macros/foo.cc

@@ -59,7 +59,7 @@ OUTPUT:
       "funcs": [13788753348312146871],
       "vars": [],
       "instances": [],
-      "uses": ["5:12-5:15|0|1|4"]
+      "uses": ["5:12-5:15|0|1|4", "5:12-5:15|0|1|64|0"]
     }],
   "usr2var": [{
       "usr": 1569772797058982873,

index_tests/namespaces/namespace_alias.cc

@@ -58,7 +58,7 @@ OUTPUT:
       "declarations": ["1:11-1:14|0|1|1"],
       "alias_of": 0,
       "bases": [],
-      "derived": [],
+      "derived": [17805385787823406700],
       "types": [17805385787823406700],
       "funcs": [],
       "vars": [],
@@ -87,7 +87,7 @@ OUTPUT:
       "kind": 3,
       "declarations": ["3:20-3:23|17805385787823406700|2|1025"],
       "alias_of": 0,
-      "bases": [],
+      "bases": [17805385787823406700, 17805385787823406700, 17805385787823406700, 17805385787823406700],
       "derived": [],
       "types": [],
       "funcs": [],
@@ -105,8 +105,8 @@ OUTPUT:
       "kind": 3,
       "declarations": ["2:15-2:18|926793467007732869|2|1025"],
       "alias_of": 0,
-      "bases": [],
+      "bases": [926793467007732869, 926793467007732869, 926793467007732869, 926793467007732869],
-      "derived": [],
+      "derived": [14450849931009540802],
       "types": [14450849931009540802],
       "funcs": [],
       "vars": [],

index_tests/usage/func_called_from_macro_argument.cc

@@ -22,7 +22,7 @@ OUTPUT:
       "bases": [],
       "derived": [],
       "vars": [],
-      "uses": ["6:14-6:20|0|1|16420"],
+      "uses": ["6:14-6:20|0|1|16420", "6:14-6:20|0|1|64|0"],
       "callees": []
     }, {
       "usr": 11404881820527069090,

src/indexer.h

@@ -71,8 +71,6 @@ void Reflect(Writer& visitor, Reference& value);
 void Reflect(Reader& visitor, Use& value);
 void Reflect(Writer& visitor, Use& value);
 
-MAKE_REFLECT_TYPE_PROXY2(clang::StorageClass, uint8_t);
-
 template <typename D>
 struct NameMixin {
   std::string_view Name(bool qualified) const {
@@ -104,11 +102,12 @@ struct FuncDef : NameMixin<FuncDef> {
   // Functions that this function calls.
   std::vector<SymbolRef> callees;
 
+  int file_id = -1;
   int16_t qual_name_offset = 0;
   int16_t short_name_offset = 0;
   int16_t short_name_size = 0;
   lsSymbolKind kind = lsSymbolKind::Unknown;
-  clang::StorageClass storage = clang::SC_None;
+  uint8_t storage = clang::SC_None;
 
   std::vector<Usr> GetBases() const { return bases; }
 };
@@ -155,6 +154,7 @@ struct TypeDef : NameMixin<TypeDef> {
   // type comes from a using or typedef statement).
   Usr alias_of = 0;
 
+  int file_id = -1;
   int16_t qual_name_offset = 0;
   int16_t short_name_offset = 0;
   int16_t short_name_size = 0;
@@ -199,6 +199,7 @@ struct VarDef : NameMixin<VarDef> {
   // Type of the variable.
   Usr type = 0;
 
+  int file_id = -1;
   int16_t qual_name_offset = 0;
   int16_t short_name_offset = 0;
   int16_t short_name_size = 0;
@@ -206,7 +207,7 @@ struct VarDef : NameMixin<VarDef> {
   lsSymbolKind kind = lsSymbolKind::Unknown;
   // Note a variable may have instances of both |None| and |Extern|
   // (declaration).
-  clang::StorageClass storage = clang::SC_None;
+  uint8_t storage = clang::SC_None;
 
   bool is_local() const {
     return spell && spell->kind != SymbolKind::File &&

src/message_handler.cc

@@ -198,7 +198,7 @@ void EmitSemanticHighlighting(DB *db,
     std::string_view detailed_name;
     lsSymbolKind parent_kind = lsSymbolKind::Unknown;
     lsSymbolKind kind = lsSymbolKind::Unknown;
-    StorageClass storage = SC_None;
+    uint8_t storage = SC_None;
     // This switch statement also filters out symbols that are not highlighted.
     switch (sym.kind) {
     case SymbolKind::Func: {

src/message_handler.h

@@ -63,7 +63,7 @@ struct Out_CclsPublishSemanticHighlighting
     int stableId = 0;
     lsSymbolKind parentKind;
     lsSymbolKind kind;
-    clang::StorageClass storage;
+    uint8_t storage;
     std::vector<std::pair<int, int>> ranges;
 
     // `lsRanges` is used to compute `ranges`.

src/messages/ccls_callHierarchy.cc

@@ -114,7 +114,7 @@ bool Expand(MessageHandler* m,
         for (SymbolRef ref : def->callees)
           if (ref.kind == SymbolKind::Func)
             handle(Use{{ref.range, ref.usr, ref.kind, ref.role},
-                       def->spell->file_id},
+                       def->file_id},
                    call_type);
     } else {
       for (Use use : func.uses)

src/query.cc

@@ -158,7 +158,7 @@ QueryFile::DefUpdate BuildFileDefUpdate(const IndexFile& indexed) {
 template <typename Q>
 bool TryReplaceDef(llvm::SmallVectorImpl<Q>& def_list, Q&& def) {
   for (auto& def1 : def_list)
-    if (def1.spell->file_id == def.spell->file_id) {
+    if (def1.file_id == def.file_id) {
       def1 = std::move(def);
       return true;
     }
@@ -182,7 +182,7 @@ IndexUpdate IndexUpdate::CreateDelta(IndexFile* previous,
   r.funcs_hint = int(current->usr2func.size() - previous->usr2func.size());
   for (auto& it : previous->usr2func) {
     auto& func = it.second;
-    if (func.def.spell)
+    if (func.def.detailed_name[0])
       r.funcs_removed.push_back(func.usr);
     r.funcs_declarations[func.usr].first = std::move(func.declarations);
     r.funcs_uses[func.usr].first = std::move(func.uses);
@@ -190,7 +190,7 @@ IndexUpdate IndexUpdate::CreateDelta(IndexFile* previous,
   }
   for (auto& it : current->usr2func) {
     auto& func = it.second;
-    if (func.def.spell && func.def.detailed_name[0])
+    if (func.def.detailed_name[0])
       r.funcs_def_update.emplace_back(it.first, func.def);
     r.funcs_declarations[func.usr].second = std::move(func.declarations);
     r.funcs_uses[func.usr].second = std::move(func.uses);
@@ -200,7 +200,7 @@ IndexUpdate IndexUpdate::CreateDelta(IndexFile* previous,
   r.types_hint = int(current->usr2type.size() - previous->usr2type.size());
   for (auto& it : previous->usr2type) {
     auto& type = it.second;
-    if (type.def.spell)
+    if (type.def.detailed_name[0])
       r.types_removed.push_back(type.usr);
     r.types_declarations[type.usr].first = std::move(type.declarations);
     r.types_uses[type.usr].first = std::move(type.uses);
@@ -209,7 +209,7 @@ IndexUpdate IndexUpdate::CreateDelta(IndexFile* previous,
   };
   for (auto& it : current->usr2type) {
     auto& type = it.second;
-    if (type.def.spell && type.def.detailed_name[0])
+    if (type.def.detailed_name[0])
       r.types_def_update.emplace_back(it.first, type.def);
     r.types_declarations[type.usr].second = std::move(type.declarations);
     r.types_uses[type.usr].second = std::move(type.uses);
@@ -220,14 +220,14 @@ IndexUpdate IndexUpdate::CreateDelta(IndexFile* previous,
   r.vars_hint = int(current->usr2var.size() - previous->usr2var.size());
   for (auto& it : previous->usr2var) {
     auto& var = it.second;
-    if (var.def.spell)
+    if (var.def.detailed_name[0])
       r.vars_removed.push_back(var.usr);
     r.vars_declarations[var.usr].first = std::move(var.declarations);
     r.vars_uses[var.usr].first = std::move(var.uses);
   }
   for (auto& it : current->usr2var) {
     auto& var = it.second;
-    if (var.def.spell && var.def.detailed_name[0])
+    if (var.def.detailed_name[0])
       r.vars_def_update.emplace_back(it.first, var.def);
     r.vars_declarations[var.usr].second = std::move(var.declarations);
     r.vars_uses[var.usr].second = std::move(var.uses);
@@ -246,7 +246,7 @@ void DB::RemoveUsrs(SymbolKind kind,
         if (!HasFunc(usr)) continue;
         QueryFunc& func = Func(usr);
         auto it = llvm::find_if(func.def, [=](const QueryFunc::Def& def) {
-          return def.spell->file_id == file_id;
+          return def.file_id == file_id;
         });
         if (it != func.def.end())
           func.def.erase(it);
@@ -259,7 +259,7 @@ void DB::RemoveUsrs(SymbolKind kind,
         if (!HasType(usr)) continue;
         QueryType& type = Type(usr);
         auto it = llvm::find_if(type.def, [=](const QueryType::Def& def) {
-          return def.spell->file_id == file_id;
+          return def.file_id == file_id;
         });
         if (it != type.def.end())
           type.def.erase(it);
@@ -272,7 +272,7 @@ void DB::RemoveUsrs(SymbolKind kind,
         if (!HasVar(usr)) continue;
         QueryVar& var = Var(usr);
         auto it = llvm::find_if(var.def, [=](const QueryVar::Def& def) {
-          return def.spell->file_id == file_id;
+          return def.file_id == file_id;
         });
         if (it != var.def.end())
           var.def.erase(it);
@@ -400,6 +400,7 @@ void DB::Update(const Lid2file_id &lid2file_id, int file_id,
   for (auto &u : us) {
     auto& def = u.second;
     assert(def.detailed_name[0]);
+    u.second.file_id = file_id;
     AssignFileId(lid2file_id, file_id, def.spell);
     AssignFileId(lid2file_id, file_id, def.extent);
     AssignFileId(lid2file_id, file_id, def.callees);
@@ -418,6 +419,7 @@ void DB::Update(const Lid2file_id &lid2file_id, int file_id,
   for (auto &u : us) {
     auto& def = u.second;
     assert(def.detailed_name[0]);
+    u.second.file_id = file_id;
     AssignFileId(lid2file_id, file_id, def.spell);
     AssignFileId(lid2file_id, file_id, def.extent);
     auto R = type_usr.try_emplace({u.first}, type_usr.size());
@@ -435,6 +437,7 @@ void DB::Update(const Lid2file_id &lid2file_id, int file_id,
   for (auto &u : us) {
     auto& def = u.second;
     assert(def.detailed_name[0]);
+    u.second.file_id = file_id;
     AssignFileId(lid2file_id, file_id, def.spell);
     AssignFileId(lid2file_id, file_id, def.extent);
     auto R = var_usr.try_emplace({u.first}, var_usr.size());