gcc/rust/typecheck/rust-hir-type-check-item.h

   1 // Copyright (C) 2020-2025 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_TYPE_CHECK_ITEM
  20 #define RUST_HIR_TYPE_CHECK_ITEM
  21
  22 #include "rust-hir-type-check-base.h"
  23 #include "rust-hir-visitor.h"
  24
  25 namespace Rust {
  26 namespace Resolver {
  27
  28 class TypeCheckItem : private TypeCheckBase, private HIR::HIRVisItemVisitor
  29 {
  30 public:
  31   static TyTy::BaseType *Resolve (HIR::Item &item);
  32
  33   static TyTy::BaseType *ResolveImplItem (HIR::ImplBlock &impl_block,
  34                                           HIR::ImplItem &item);
  35
  36   static TyTy::BaseType *ResolveImplBlockSelf (HIR::ImplBlock &impl_block);
  37
  38   static TyTy::BaseType *ResolveImplBlockSelfWithInference (
  39     HIR::ImplBlock &impl, location_t locus,
  40     TyTy::SubstitutionArgumentMappings *infer_arguments);
  41
  42   void visit (HIR::Module &module) override;
  43   void visit (HIR::Function &function) override;
  44   void visit (HIR::TypeAlias &alias) override;
  45   void visit (HIR::TupleStruct &struct_decl) override;
  46   void visit (HIR::StructStruct &struct_decl) override;
  47   void visit (HIR::Enum &enum_decl) override;
  48   void visit (HIR::Union &union_decl) override;
  49   void visit (HIR::StaticItem &var) override;
  50   void visit (HIR::ConstantItem &constant) override;
  51   void visit (HIR::ImplBlock &impl_block) override;
  52   void visit (HIR::ExternBlock &extern_block) override;
  53   void visit (HIR::Trait &trait_block) override;
  54
  55   // nothing to do
  56   void visit (HIR::ExternCrate &) override {}
  57   void visit (HIR::UseDeclaration &) override {}
  58
  59 protected:
  60   std::pair<std::vector<TyTy::SubstitutionParamMapping>,
  61             TyTy::RegionConstraints>
  62   resolve_impl_block_substitutions (HIR::ImplBlock &impl_block,
  63                                     bool &failure_flag);
  64
  65   void validate_trait_impl_block (
  66     HIR::ImplBlock &impl_block, TyTy::BaseType *self,
  67     std::vector<TyTy::SubstitutionParamMapping> &substitutions);
  68
  69   TyTy::BaseType *resolve_impl_item (HIR::ImplBlock &impl_block,
  70                                      HIR::ImplItem &item);
  71
  72   TyTy::BaseType *resolve_impl_block_self (HIR::ImplBlock &impl_block);
  73
  74 private:
  75   TypeCheckItem ();
  76
  77   TyTy::BaseType *infered;
  78 };
  79
  80 } // namespace Resolver
  81 } // namespace Rust
  82
  83 #endif // RUST_HIR_TYPE_CHECK_ITEM