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_TYPE_CHECK_IMPLITEM_H
      20              : #define RUST_HIR_TYPE_CHECK_IMPLITEM_H
      21              : 
      22              : #include "rust-hir-type-check-base.h"
      23              : #include "rust-hir-visitor.h"
      24              : 
      25              : namespace Rust {
      26              : namespace Resolver {
      27              : 
      28         2212 : class TypeCheckTopLevelExternItem : public TypeCheckBase,
      29              :                                     public HIR::HIRExternalItemVisitor
      30              : {
      31              : public:
      32              :   static TyTy::BaseType *Resolve (HIR::ExternalItem &item,
      33              :                                   const HIR::ExternBlock &parent);
      34              : 
      35              :   void visit (HIR::ExternalStaticItem &item) override;
      36              :   void visit (HIR::ExternalFunctionItem &function) override;
      37              :   void visit (HIR::ExternalTypeItem &type) override;
      38              : 
      39              : private:
      40              :   TypeCheckTopLevelExternItem (const HIR::ExternBlock &parent);
      41              : 
      42              :   const HIR::ExternBlock &parent;
      43              :   TyTy::BaseType *resolved;
      44              : };
      45              : 
      46         8079 : class TypeCheckImplItem : public TypeCheckBase, public HIR::HIRImplVisitor
      47              : {
      48              : public:
      49              :   static TyTy::BaseType *
      50              :   Resolve (HIR::ImplBlock &parent, HIR::ImplItem &item, TyTy::BaseType *self,
      51              :            std::vector<TyTy::SubstitutionParamMapping> substitutions);
      52              : 
      53              :   void visit (HIR::Function &function) override;
      54              :   void visit (HIR::ConstantItem &const_item) override;
      55              :   void visit (HIR::TypeAlias &type_alias) override;
      56              : 
      57              : protected:
      58              :   TypeCheckImplItem (HIR::ImplBlock &parent, TyTy::BaseType *self,
      59              :                      std::vector<TyTy::SubstitutionParamMapping> substitutions);
      60              : 
      61              :   HIR::ImplBlock &parent;
      62              :   TyTy::BaseType *self;
      63              :   std::vector<TyTy::SubstitutionParamMapping> substitutions;
      64              : 
      65              :   TyTy::BaseType *result = nullptr;
      66              : };
      67              : 
      68              : class TypeCheckImplItemWithTrait : public TypeCheckBase,
      69              :                                    public HIR::HIRImplVisitor
      70              : {
      71              : public:
      72              :   static TyTy::TypeBoundPredicateItem
      73              :   Resolve (HIR::ImplBlock &parent, HIR::ImplItem &item, TyTy::BaseType *self,
      74              :            TyTy::TypeBoundPredicate &trait_reference,
      75              :            std::vector<TyTy::SubstitutionParamMapping> substitutions);
      76              : 
      77              :   void visit (HIR::ConstantItem &constant) override;
      78              :   void visit (HIR::TypeAlias &type) override;
      79              :   void visit (HIR::Function &function) override;
      80              : 
      81              : protected:
      82              :   // this allows us to inherit the must_use specified on a trait definition onto
      83              :   // its implementation
      84              :   void merge_attributes (AST::AttrVec &impl_item_attrs,
      85              :                          const HIR::TraitItem &trait_item);
      86              : 
      87              : private:
      88              :   TypeCheckImplItemWithTrait (
      89              :     HIR::ImplBlock &parent, TyTy::BaseType *self,
      90              :     TyTy::TypeBoundPredicate &trait_reference,
      91              :     std::vector<TyTy::SubstitutionParamMapping> substitutions);
      92              : 
      93              :   bool is_trait_impl_block () const;
      94              : 
      95              :   TyTy::TypeBoundPredicate &trait_reference;
      96              :   TyTy::TypeBoundPredicateItem resolved_trait_item;
      97              : 
      98              :   HIR::ImplBlock &parent;
      99              :   TyTy::BaseType *self;
     100              :   std::vector<TyTy::SubstitutionParamMapping> substitutions;
     101              :   TyTy::RegionConstraints region_constraints;
     102              : };
     103              : 
     104              : } // namespace Resolver
     105              : } // namespace Rust
     106              : 
     107              : #endif // RUST_HIR_TYPE_CHECK_IMPLITEM_H