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: 2026-02-28 14:20:25 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       270466 : Rib::Definition::Definition (NodeId id, Mode mode, bool enum_variant)
      26       270466 :   : enum_variant (enum_variant)
      27              : {
      28       270466 :   switch (mode)
      29              :     {
      30        24460 :     case Mode::SHADOWABLE:
      31        24460 :       ids_shadowable.push_back (id);
      32        24460 :       return;
      33       245976 :     case Mode::NON_SHADOWABLE:
      34       245976 :       ids_non_shadowable.push_back (id);
      35       245976 :       return;
      36           30 :     case Mode::GLOBBED:
      37           30 :       ids_globbed.push_back (id);
      38           30 :       return;
      39            0 :     default:
      40            0 :       gcc_unreachable ();
      41              :     }
      42              : }
      43              : 
      44              : bool
      45       404111 : Rib::Definition::is_ambiguous () const
      46              : {
      47       404111 :   if (!ids_shadowable.empty ())
      48              :     return false;
      49       377589 :   else if (!ids_non_shadowable.empty ())
      50       377555 :     return ids_non_shadowable.size () > 1;
      51              :   else
      52           34 :     return ids_globbed.size () > 1;
      53              : }
      54              : 
      55              : bool
      56        69384 : Rib::Definition::is_variant () const
      57              : {
      58        69384 :   return enum_variant;
      59              : }
      60              : 
      61              : std::string
      62      1694418 : Rib::Definition::to_string () const
      63              : {
      64      1694418 :   std::stringstream out;
      65      1694418 :   const char *headers[3] = {"(S)[", "] (NS)[", "] (G)["};
      66      1694418 :   const std::vector<NodeId> *id_lists[3]
      67      1694418 :     = {&ids_shadowable, &ids_non_shadowable, &ids_globbed};
      68      6777672 :   for (int i = 0; i < 3; i++)
      69              :     {
      70      5083254 :       out << headers[i];
      71      5083254 :       std::string sep;
      72      6778263 :       for (auto id : *id_lists[i])
      73              :         {
      74      3390018 :           out << sep << id;
      75      1695009 :           sep = ",";
      76              :         }
      77      5083254 :     }
      78      1694418 :   out << "]";
      79      1694418 :   if (enum_variant)
      80        10164 :     out << "(enum variant)";
      81      1694418 :   return out.str ();
      82      1694418 : }
      83              : 
      84              : Rib::Definition
      85        24460 : Rib::Definition::Shadowable (NodeId id)
      86              : {
      87        24460 :   return Definition (id, Mode::SHADOWABLE, false);
      88              : }
      89              : 
      90              : Rib::Definition
      91       245976 : Rib::Definition::NonShadowable (NodeId id, bool enum_variant)
      92              : {
      93       245976 :   return Definition (id, Mode::NON_SHADOWABLE, enum_variant);
      94              : }
      95              : 
      96              : Rib::Definition
      97           30 : Rib::Definition::Globbed (NodeId id)
      98              : {
      99           30 :   return Definition (id, Mode::GLOBBED, false);
     100              : }
     101              : 
     102       107533 : DuplicateNameError::DuplicateNameError (std::string name, NodeId existing)
     103       107533 :   : name (name), existing (existing)
     104       107533 : {}
     105              : 
     106      1562553 : 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       266959 : Rib::insert (std::string name, Definition def)
     121              : {
     122       266959 :   auto it = values.find (name);
     123       266959 :   if (it == values.end ())
     124              :     {
     125              :       /* No old value */
     126       159021 :       values[name] = def;
     127              :     }
     128       107938 :   else if (it->second.ids_non_shadowable.empty ()
     129       107938 :            || def.ids_non_shadowable.empty ())
     130              :     { /* No non-shadowable conflict */
     131          539 :       auto &current = values[name];
     132          542 :       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          940 :       for (auto id : def.ids_shadowable)
     143              :         {
     144         1038 :           if (std::find (current.ids_shadowable.cbegin (),
     145              :                          current.ids_shadowable.cend (), id)
     146         1038 :               == current.ids_shadowable.cend ())
     147          401 :             current.ids_shadowable.push_back (id);
     148              :           else
     149              :             // TODO: should this produce an error?
     150          236 :             return tl::make_unexpected (DuplicateNameError (name, id));
     151              :         }
     152          422 :       for (auto id : def.ids_globbed)
     153              :         {
     154           34 :           if (std::find (current.ids_globbed.cbegin (),
     155              :                          current.ids_globbed.cend (), id)
     156           34 :               == current.ids_globbed.cend ())
     157            1 :             current.ids_globbed.push_back (id);
     158              :           else
     159              :             // TODO: should this produce an error?
     160           32 :             return tl::make_unexpected (DuplicateNameError (name, id));
     161              :         }
     162              :     }
     163              :   else /* Multiple non-shadowable */
     164              :     {
     165       322197 :       return tl::make_unexpected (
     166       429596 :         DuplicateNameError (name, it->second.ids_non_shadowable.back ()));
     167              :     }
     168              : 
     169       159426 :   if (!def.ids_shadowable.empty ())
     170        24342 :     return def.ids_shadowable.back ();
     171       135084 :   else if (!def.ids_non_shadowable.empty ())
     172       135070 :     return def.ids_non_shadowable.back ();
     173           14 :   rust_assert (!def.ids_globbed.empty ());
     174           14 :   return def.ids_globbed.back ();
     175              : }
     176              : 
     177              : tl::optional<Rib::Definition>
     178       330352 : Rib::get (const std::string &name)
     179              : {
     180       330352 :   auto it = values.find (name);
     181              : 
     182       330352 :   if (it == values.end ())
     183       222178 :     return tl::nullopt;
     184              : 
     185       108174 :   return it->second;
     186              : }
     187              : 
     188              : const std::unordered_map<std::string, Rib::Definition> &
     189      3016921 : Rib::get_values () const
     190              : {
     191      3016921 :   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.