LCOV - code coverage report
Current view: top level - gcc/rust/resolve - rust-rib.cc (source / functions) Coverage Total Hit
Test: gcc.info Lines: 88.2 % 93 82
Test Date: 2026-07-11 15:47:05 Functions: 85.7 % 14 12
Legend: Lines:     hit not hit

            Line data    Source code
       1              : // Copyright (C) 2020-2026 Free Software Foundation, Inc.
       2              : 
       3              : // This file is part of GCC.
       4              : 
       5              : // GCC is free software; you can redistribute it and/or modify it under
       6              : // the terms of the GNU General Public License as published by the Free
       7              : // Software Foundation; either version 3, or (at your option) any later
       8              : // version.
       9              : 
      10              : // GCC is distributed in the hope that it will be useful, but WITHOUT ANY
      11              : // WARRANTY; without even the implied warranty of MERCHANTABILITY or
      12              : // FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
      13              : // for more details.
      14              : 
      15              : // You should have received a copy of the GNU General Public License
      16              : // along with GCC; see the file COPYING3.  If not see
      17              : // <http://www.gnu.org/licenses/>.
      18              : 
      19              : #include "rust-rib.h"
      20              : #include "rust-name-resolution-context.h"
      21              : 
      22              : namespace Rust {
      23              : namespace Resolver2_0 {
      24              : 
      25       284877 : Rib::Definition::Definition (NodeId id, Mode mode, bool enum_variant)
      26       284877 :   : enum_variant (enum_variant)
      27              : {
      28       284877 :   switch (mode)
      29              :     {
      30        24901 :     case Mode::SHADOWABLE:
      31        24901 :       ids_shadowable.push_back (id);
      32        24901 :       return;
      33       259892 :     case Mode::NON_SHADOWABLE:
      34       259892 :       ids_non_shadowable.push_back (id);
      35       259892 :       return;
      36           84 :     case Mode::GLOBBED:
      37           84 :       ids_globbed.push_back (id);
      38           84 :       return;
      39            0 :     default:
      40            0 :       gcc_unreachable ();
      41              :     }
      42              : }
      43              : 
      44              : bool
      45       474354 : Rib::Definition::is_ambiguous () const
      46              : {
      47       474354 :   if (!ids_shadowable.empty ())
      48              :     return false;
      49       447506 :   else if (!ids_non_shadowable.empty ())
      50       447445 :     return ids_non_shadowable.size () > 1;
      51              :   else
      52           61 :     return ids_globbed.size () > 1;
      53              : }
      54              : 
      55              : bool
      56        72297 : Rib::Definition::is_variant () const
      57              : {
      58        72297 :   return enum_variant;
      59              : }
      60              : 
      61              : std::string
      62      1907993 : Rib::Definition::to_string () const
      63              : {
      64      1907993 :   std::stringstream out;
      65      1907993 :   const char *headers[3] = {"(S)[", "] (NS)[", "] (G)["};
      66      1907993 :   const std::vector<NodeId> *id_lists[3]
      67      1907993 :     = {&ids_shadowable, &ids_non_shadowable, &ids_globbed};
      68      7631972 :   for (int i = 0; i < 3; i++)
      69              :     {
      70      5723979 :       out << headers[i];
      71      5723979 :       std::string sep;
      72      7632472 :       for (auto id : *id_lists[i])
      73              :         {
      74      3816986 :           out << sep << id;
      75      1908493 :           sep = ",";
      76              :         }
      77      5723979 :     }
      78      1907993 :   out << "]";
      79      1907993 :   if (enum_variant)
      80        23880 :     out << "(enum variant)";
      81      1907993 :   return out.str ();
      82      1907993 : }
      83              : 
      84              : Rib::Definition
      85        24901 : Rib::Definition::Shadowable (NodeId id)
      86              : {
      87        24901 :   return Definition (id, Mode::SHADOWABLE, false);
      88              : }
      89              : 
      90              : Rib::Definition
      91       259892 : Rib::Definition::NonShadowable (NodeId id, bool enum_variant)
      92              : {
      93       259892 :   return Definition (id, Mode::NON_SHADOWABLE, enum_variant);
      94              : }
      95              : 
      96              : Rib::Definition
      97           84 : Rib::Definition::Globbed (NodeId id)
      98              : {
      99           84 :   return Definition (id, Mode::GLOBBED, false);
     100              : }
     101              : 
     102       112449 : DuplicateNameError::DuplicateNameError (std::string name, NodeId existing)
     103       112449 :   : name (name), existing (existing)
     104       112449 : {}
     105              : 
     106      1677714 : Rib::Rib (Kind kind) : kind (kind) {}
     107              : 
     108            0 : Rib::Rib (Kind kind, std::string identifier, NodeId id)
     109            0 :   : Rib (kind, {{identifier, id}})
     110            0 : {}
     111              : 
     112            0 : Rib::Rib (Kind kind, std::unordered_map<std::string, NodeId> to_insert)
     113            0 :   : kind (kind)
     114              : {
     115            0 :   for (auto &value : to_insert)
     116            0 :     values.insert ({value.first, Definition::NonShadowable (value.second)});
     117            0 : }
     118              : 
     119              : tl::expected<NodeId, DuplicateNameError>
     120       281563 : Rib::insert (std::string name, Definition def)
     121              : {
     122       281563 :   auto it = values.find (name);
     123       281563 :   if (it == values.end ())
     124              :     {
     125              :       /* No old value */
     126       168826 :       values[name] = def;
     127              :     }
     128       112737 :   else if (it->second.ids_non_shadowable.empty ()
     129       112737 :            || def.ids_non_shadowable.empty ())
     130              :     { /* No non-shadowable conflict */
     131          447 :       auto &current = values[name];
     132          450 :       for (auto id : def.ids_non_shadowable)
     133              :         {
     134            6 :           if (std::find (current.ids_non_shadowable.cbegin (),
     135              :                          current.ids_non_shadowable.cend (), id)
     136            6 :               == current.ids_non_shadowable.cend ())
     137            3 :             current.ids_non_shadowable.push_back (id);
     138              :           else
     139              :             // TODO: should this produce an error?
     140            0 :             return tl::make_unexpected (DuplicateNameError (name, id));
     141              :         }
     142          729 :       for (auto id : def.ids_shadowable)
     143              :         {
     144          794 :           if (std::find (current.ids_shadowable.cbegin (),
     145              :                          current.ids_shadowable.cend (), id)
     146          794 :               == current.ids_shadowable.cend ())
     147          282 :             current.ids_shadowable.push_back (id);
     148              :           else
     149              :             // TODO: should this produce an error?
     150          230 :             return tl::make_unexpected (DuplicateNameError (name, id));
     151              :         }
     152          335 :       for (auto id : def.ids_globbed)
     153              :         {
     154           94 :           if (std::find (current.ids_globbed.cbegin (),
     155              :                          current.ids_globbed.cend (), id)
     156           94 :               == current.ids_globbed.cend ())
     157            3 :             current.ids_globbed.push_back (id);
     158              :           else
     159              :             // TODO: should this produce an error?
     160           88 :             return tl::make_unexpected (DuplicateNameError (name, id));
     161              :         }
     162              :     }
     163              :   else /* Multiple non-shadowable */
     164              :     {
     165       336870 :       return tl::make_unexpected (
     166       449160 :         DuplicateNameError (name, it->second.ids_non_shadowable.back ()));
     167              :     }
     168              : 
     169       169114 :   if (!def.ids_shadowable.empty ())
     170        24786 :     return def.ids_shadowable.back ();
     171       144328 :   else if (!def.ids_non_shadowable.empty ())
     172       144288 :     return def.ids_non_shadowable.back ();
     173           40 :   rust_assert (!def.ids_globbed.empty ());
     174           40 :   return def.ids_globbed.back ();
     175              : }
     176              : 
     177              : tl::optional<Rib::Definition>
     178       485973 : Rib::get (const std::string &name)
     179              : {
     180       485973 :   auto it = values.find (name);
     181              : 
     182       485973 :   if (it == values.end ())
     183       375518 :     return tl::nullopt;
     184              : 
     185       110455 :   return it->second;
     186              : }
     187              : 
     188              : const std::unordered_map<std::string, Rib::Definition> &
     189      3240943 : Rib::get_values () const
     190              : {
     191      3240943 :   return values;
     192              : }
     193              : 
     194              : } // namespace Resolver2_0
     195              : } // namespace Rust
        

Generated by: LCOV version 2.4-beta

LCOV profile is generated on x86_64 machine using following configure options: configure --disable-bootstrap --enable-coverage=opt --enable-languages=c,c++,fortran,go,jit,lto,rust,m2 --enable-host-shared. GCC test suite is run with the built compiler.