LCOV - code coverage report
Current view: top level - gcc/rust/typecheck - rust-hir-path-probe.h (source / functions) Coverage Total Hit
Test: gcc.info Lines: 100.0 % 11 11
Test Date: 2026-02-28 14:20:25 Functions: 100.0 % 1 1
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              : #ifndef RUST_HIR_PATH_PROBE_H
      20              : #define RUST_HIR_PATH_PROBE_H
      21              : 
      22              : #include "rust-hir-type-check-base.h"
      23              : #include "rust-hir-visitor.h"
      24              : #include "rust-tyty.h"
      25              : 
      26              : namespace Rust {
      27              : namespace Resolver {
      28              : 
      29              : struct PathProbeCandidate
      30              : {
      31              :   enum CandidateType
      32              :   {
      33              :     ERROR,
      34              : 
      35              :     ENUM_VARIANT,
      36              : 
      37              :     IMPL_CONST,
      38              :     IMPL_TYPE_ALIAS,
      39              :     IMPL_FUNC,
      40              : 
      41              :     TRAIT_ITEM_CONST,
      42              :     TRAIT_TYPE_ALIAS,
      43              :     TRAIT_FUNC,
      44              :   };
      45              : 
      46              :   struct EnumItemCandidate
      47              :   {
      48              :     const TyTy::ADTType *parent;
      49              :     const TyTy::VariantDef *variant;
      50              :   };
      51              : 
      52              :   struct ImplItemCandidate
      53              :   {
      54              :     HIR::ImplItem *impl_item;
      55              :     HIR::ImplBlock *parent;
      56              :   };
      57              : 
      58              :   struct TraitItemCandidate
      59              :   {
      60              :     const TraitReference *trait_ref;
      61              :     const TraitItemReference *item_ref;
      62              :     HIR::ImplBlock *impl;
      63              :   };
      64              : 
      65              :   CandidateType type;
      66              :   TyTy::BaseType *ty;
      67              :   location_t locus;
      68              :   union Candidate
      69              :   {
      70              :     EnumItemCandidate enum_field;
      71              :     ImplItemCandidate impl;
      72              :     TraitItemCandidate trait;
      73              : 
      74              :     Candidate (EnumItemCandidate enum_field);
      75              :     Candidate (ImplItemCandidate impl);
      76              :     Candidate (TraitItemCandidate trait);
      77              :   } item;
      78              : 
      79              :   PathProbeCandidate (CandidateType type, TyTy::BaseType *ty, location_t locus,
      80              :                       EnumItemCandidate enum_field);
      81              : 
      82              :   PathProbeCandidate (CandidateType type, TyTy::BaseType *ty, location_t locus,
      83              :                       ImplItemCandidate impl);
      84              : 
      85              :   PathProbeCandidate (CandidateType type, TyTy::BaseType *ty, location_t locus,
      86              :                       TraitItemCandidate trait);
      87              : 
      88              :   std::string as_string () const;
      89              : 
      90              :   bool is_enum_candidate () const;
      91              : 
      92              :   bool is_impl_candidate () const;
      93              : 
      94              :   bool is_trait_candidate () const;
      95              : 
      96              :   bool is_full_trait_item_candidate () const;
      97              : 
      98              :   static PathProbeCandidate get_error ();
      99              : 
     100              :   bool is_error () const;
     101              : 
     102              :   DefId get_defid () const;
     103              : 
     104              :   bool operator< (const PathProbeCandidate &c) const;
     105              : };
     106              : 
     107         2245 : class PathProbeType : public TypeCheckBase, public HIR::HIRImplVisitor
     108              : {
     109              : public:
     110              :   static std::set<PathProbeCandidate>
     111              :   Probe (TyTy::BaseType *receiver, const HIR::PathIdentSegment &segment_name,
     112              :          bool probe_impls, bool probe_bounds, bool ignore_mandatory_trait_items,
     113              :          DefId specific_trait_id = UNKNOWN_DEFID);
     114              : 
     115              :   void visit (HIR::TypeAlias &alias) override;
     116              :   void visit (HIR::ConstantItem &constant) override;
     117              :   void visit (HIR::Function &function) override;
     118              : 
     119              : protected:
     120              :   void process_enum_item_for_candiates (const TyTy::ADTType *adt);
     121              : 
     122              :   void process_impl_items_for_candidates ();
     123              : 
     124              :   void process_impl_item_candidate (HirId id, HIR::ImplItem *item,
     125              :                                     HIR::ImplBlock *impl);
     126              : 
     127              :   void
     128              :   process_associated_trait_for_candidates (const TraitReference *trait_ref,
     129              :                                            HIR::ImplBlock *impl,
     130              :                                            bool ignore_mandatory_trait_items);
     131              : 
     132              :   void
     133              :   process_predicate_for_candidates (const TyTy::TypeBoundPredicate &predicate,
     134              :                                     bool ignore_mandatory_trait_items);
     135              : 
     136              : protected:
     137              :   PathProbeType (TyTy::BaseType *receiver, const HIR::PathIdentSegment &query,
     138              :                  DefId specific_trait_id);
     139              : 
     140              :   std::vector<std::pair<const TraitReference *, HIR::ImplBlock *>>
     141              :   union_bounds (
     142              :     const std::vector<std::pair</*const*/ TraitReference *, HIR::ImplBlock *>>
     143              :       a,
     144              :     const std::vector<std::pair<const TraitReference *, HIR::ImplBlock *>> b)
     145              :     const;
     146              : 
     147              :   bool is_receiver_generic () const;
     148              : 
     149              :   TyTy::BaseType *receiver;
     150              :   const HIR::PathIdentSegment &search;
     151              :   std::set<PathProbeCandidate> candidates;
     152              :   HIR::ImplBlock *current_impl;
     153              :   DefId specific_trait_id;
     154              : };
     155              : 
     156              : class ReportMultipleCandidateError : private TypeCheckBase
     157              : {
     158              : public:
     159            1 :   static void Report (std::set<PathProbeCandidate> &candidates,
     160              :                       const HIR::PathIdentSegment &query,
     161              :                       location_t query_locus)
     162              :   {
     163            1 :     rich_location r (line_table, query_locus);
     164            3 :     for (auto &c : candidates)
     165            2 :       r.add_range (c.locus);
     166              : 
     167            3 :     std::string rich_msg = "multiple " + query.to_string () + " found";
     168            1 :     r.add_fixit_replace (rich_msg.c_str ());
     169              : 
     170            2 :     rust_error_at (r, ErrorCode::E0034,
     171              :                    "multiple applicable items in scope for: %qs",
     172            2 :                    query.to_string ().c_str ());
     173            1 :   }
     174              : };
     175              : 
     176         1156 : class PathProbeImplTrait : public PathProbeType
     177              : {
     178              : public:
     179              :   static std::set<PathProbeCandidate>
     180              :   Probe (TyTy::BaseType *receiver, const HIR::PathIdentSegment &segment_name,
     181              :          const TraitReference *trait_reference);
     182              : 
     183              : private:
     184              :   PathProbeImplTrait (TyTy::BaseType *receiver,
     185              :                       const HIR::PathIdentSegment &query,
     186              :                       const TraitReference *trait_reference);
     187              : 
     188              :   void process_trait_impl_items_for_candidates ();
     189              : 
     190              :   const TraitReference *trait_reference;
     191              : };
     192              : 
     193              : } // namespace Resolver
     194              : } // namespace Rust
     195              : 
     196              : #endif // RUST_HIR_PATH_PROBE_H
        

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.