gcc/rust/typecheck/rust-hir-trait-resolve.h

   1 // Copyright (C) 2021-2025 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_TRAIT_RESOLVE_H
  20 #define RUST_HIR_TRAIT_RESOLVE_H
  21
  22 #include "rust-hir-type-check-type.h"
  23 #include "rust-hir-visitor.h"
  24
  25 namespace Rust {
  26 namespace Resolver {
  27
  28 class ResolveTraitItemToRef : public TypeCheckBase,
  29                               private HIR::HIRTraitItemVisitor
  30 {
  31 public:
  32   static TraitItemReference
  33   Resolve (HIR::TraitItem &item, TyTy::BaseType *self,
  34            std::vector<TyTy::SubstitutionParamMapping> substitutions);
  35
  36   void visit (HIR::TraitItemType &type) override;
  37
  38   void visit (HIR::TraitItemConst &cst) override;
  39
  40   void visit (HIR::TraitItemFunc &fn) override;
  41
  42 private:
  43   ResolveTraitItemToRef (
  44     TyTy::BaseType *self,
  45     std::vector<TyTy::SubstitutionParamMapping> &&substitutions);
  46
  47   TraitItemReference resolved;
  48   TyTy::BaseType *self;
  49   std::vector<TyTy::SubstitutionParamMapping> substitutions;
  50 };
  51
  52 class TraitResolver : public TypeCheckBase
  53 {
  54 public:
  55   static TraitReference *Resolve (HIR::TypePath &path);
  56
  57   static TraitReference *Resolve (HIR::Trait &trait);
  58
  59   static TraitReference *Lookup (HIR::TypePath &path);
  60
  61 private:
  62   TraitResolver ();
  63
  64   TraitReference *resolve_path (HIR::TypePath &path);
  65
  66   TraitReference *resolve_trait (HIR::Trait *trait_reference);
  67
  68   TraitReference *lookup_path (HIR::TypePath &path);
  69
  70   bool resolve_path_to_trait (const HIR::TypePath &path,
  71                               HIR::Trait **resolved) const;
  72 };
  73
  74 } // namespace Resolver
  75 } // namespace Rust
  76
  77 #endif // RUST_HIR_TRAIT_RESOLVE_H