LCOV - code coverage report
Current view: top level - gcc/rust/resolve - rust-rib.cc (source / functions) Coverage Total Hit
Test: gcc.info Lines: 79.3 % 111 88
Test Date: 2026-10-03 16:17:38 Functions: 80.0 % 15 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      1536566 : Rib::Definition::Definition (NodeId id, Mode mode, bool enum_variant)
      26      1536566 :   : enum_variant (enum_variant)
      27              : {
      28      1536566 :   switch (mode)
      29              :     {
      30        49692 :     case Mode::SHADOWABLE:
      31        49692 :       ids_shadowable.push_back (id);
      32        49692 :       return;
      33      1486874 :     case Mode::NON_SHADOWABLE:
      34      1486874 :       ids_non_shadowable.push_back (id);
      35      1486874 :       return;
      36            0 :     case Mode::GLOBBED:
      37            0 :       ids_globbed.push_back (id);
      38            0 :       return;
      39            0 :     default:
      40            0 :       gcc_unreachable ();
      41              :     }
      42              : }
      43              : 
      44              : bool
      45      1597933 : Rib::Definition::is_ambiguous () const
      46              : {
      47      1597933 :   if (!ids_shadowable.empty ())
      48              :     return false;
      49      1447549 :   else if (!ids_non_shadowable.empty ())
      50      1292736 :     return ids_non_shadowable.size () > 1;
      51              :   else
      52       154813 :     return ids_globbed.size () > 1;
      53              : }
      54              : 
      55              : bool
      56       320550 : Rib::Definition::is_variant () const
      57              : {
      58       320550 :   return enum_variant;
      59              : }
      60              : 
      61              : std::string
      62           24 : Rib::Definition::to_string () const
      63              : {
      64           24 :   std::stringstream out;
      65           24 :   const char *headers[3] = {"(S)[", "] (NS)[", "] (G)["};
      66           24 :   const std::vector<NodeId> *id_lists[3]
      67           24 :     = {&ids_shadowable, &ids_non_shadowable, &ids_globbed};
      68           96 :   for (int i = 0; i < 3; i++)
      69              :     {
      70           72 :       out << headers[i];
      71           72 :       std::string sep;
      72           96 :       for (auto id : *id_lists[i])
      73              :         {
      74           48 :           out << sep << id;
      75           24 :           sep = ",";
      76              :         }
      77           72 :     }
      78           24 :   out << "]";
      79           24 :   if (enum_variant)
      80            0 :     out << "(enum variant)";
      81           24 :   return out.str ();
      82           24 : }
      83              : 
      84              : Rib::Definition
      85        49692 : Rib::Definition::Shadowable (NodeId id)
      86              : {
      87        49692 :   return Definition (id, Mode::SHADOWABLE, false);
      88              : }
      89              : 
      90              : Rib::Definition
      91      1486874 : Rib::Definition::NonShadowable (NodeId id, bool enum_variant)
      92              : {
      93      1486874 :   return Definition (id, Mode::NON_SHADOWABLE, enum_variant);
      94              : }
      95              : 
      96              : Rib::Definition
      97            0 : Rib::Definition::Globbed (NodeId id)
      98              : {
      99            0 :   return Definition (id, Mode::GLOBBED, false);
     100              : }
     101              : 
     102      1229013 : DuplicateNameError::DuplicateNameError (std::string name, NodeId existing)
     103      1229013 :   : name (name), existing (existing)
     104      1229013 : {}
     105              : 
     106    125269040 : 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      1478981 : Rib::insert (std::string name, Definition def)
     121              : {
     122      1478981 :   auto it = values.find (name);
     123      1478981 :   if (it == values.end ())
     124              :     {
     125              :       /* No old value */
     126       249469 :       values[name] = def;
     127              :     }
     128      1229512 :   else if (it->second.ids_non_shadowable.empty ()
     129      1229512 :            || def.ids_non_shadowable.empty ())
     130              :     { /* No non-shadowable conflict */
     131         2543 :       auto &current = values[name];
     132         2634 :       for (auto id : def.ids_non_shadowable)
     133              :         {
     134          182 :           if (std::find (current.ids_non_shadowable.cbegin (),
     135              :                          current.ids_non_shadowable.cend (), id)
     136          182 :               == current.ids_non_shadowable.cend ())
     137           91 :             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         2951 :       for (auto id : def.ids_shadowable)
     143              :         {
     144         4904 :           if (std::find (current.ids_shadowable.cbegin (),
     145              :                          current.ids_shadowable.cend (), id)
     146         4904 :               == current.ids_shadowable.cend ())
     147          408 :             current.ids_shadowable.push_back (id);
     148              :           else
     149              :             // TODO: should this produce an error?
     150         4088 :             return tl::make_unexpected (DuplicateNameError (name, id));
     151              :         }
     152          499 :       for (auto id : def.ids_globbed)
     153              :         {
     154            0 :           if (std::find (current.ids_globbed.cbegin (),
     155              :                          current.ids_globbed.cend (), id)
     156            0 :               == current.ids_globbed.cend ())
     157            0 :             current.ids_globbed.push_back (id);
     158              :           else
     159              :             // TODO: should this produce an error?
     160            0 :             return tl::make_unexpected (DuplicateNameError (name, id));
     161              :         }
     162              :     }
     163              :   else /* Multiple non-shadowable */
     164              :     {
     165      3680907 :       return tl::make_unexpected (
     166      4907876 :         DuplicateNameError (name, it->second.ids_non_shadowable.back ()));
     167              :     }
     168              : 
     169       249968 :   if (!def.ids_shadowable.empty ())
     170        47648 :     return def.ids_shadowable.back ();
     171       202320 :   else if (!def.ids_non_shadowable.empty ())
     172       202320 :     return def.ids_non_shadowable.back ();
     173            0 :   rust_assert (!def.ids_globbed.empty ());
     174            0 :   return def.ids_globbed.back ();
     175              : }
     176              : 
     177              : bool
     178      4899901 : Rib::insert_globbed (std::string name, const Definition &def)
     179              : {
     180      4899901 :   bool dirty = false;
     181              : 
     182      4899901 :   const std::vector<NodeId> *ids_src;
     183              : 
     184      4899901 :   if (!def.ids_shadowable.empty ())
     185       317336 :     ids_src = &def.ids_shadowable;
     186      4582565 :   else if (!def.ids_non_shadowable.empty ())
     187       506158 :     ids_src = &def.ids_non_shadowable;
     188              :   else
     189      4076407 :     ids_src = &def.ids_globbed;
     190              : 
     191      4899901 :   auto it = values.find (name);
     192      4899901 :   if (it == values.end ())
     193              :     {
     194        79775 :       values[name].ids_globbed = *ids_src;
     195        79775 :       return true;
     196              :     }
     197              : 
     198      9716766 :   for (NodeId id : *ids_src)
     199              :     {
     200      4896640 :       auto &ids_dst = it->second.ids_globbed;
     201      9793280 :       if (std::find (ids_dst.cbegin (), ids_dst.cend (), id) == ids_dst.cend ())
     202              :         {
     203         3144 :           dirty = true;
     204         3144 :           ids_dst.push_back (id);
     205              :         }
     206              :     }
     207              : 
     208      4820126 :   return dirty;
     209              : }
     210              : 
     211              : tl::optional<Rib::Definition>
     212      3571081 : Rib::get (const std::string &name)
     213              : {
     214      3571081 :   auto it = values.find (name);
     215              : 
     216      3571081 :   if (it == values.end ())
     217      3152466 :     return tl::nullopt;
     218              : 
     219       418615 :   return it->second;
     220              : }
     221              : 
     222              : const std::unordered_map<std::string, Rib::Definition> &
     223     62694369 : Rib::get_values () const
     224              : {
     225     62694369 :   return values;
     226              : }
     227              : 
     228              : } // namespace Resolver2_0
     229              : } // 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.