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         2689 : 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        11408 : 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              :   static TyTy::FnType *ResolveFunctionSignature (
      54              :     HIR::ImplBlock &parent, HIR::Function &function, TyTy::BaseType *self,
      55              :     std::vector<TyTy::SubstitutionParamMapping> substitutions);
      56              : 
      57              :   void visit (HIR::Function &function) override;
      58              :   void visit (HIR::ConstantItem &const_item) override;
      59              :   void visit (HIR::TypeAlias &type_alias) override;
      60              : 
      61              : protected:
      62              :   TypeCheckImplItem (HIR::ImplBlock &parent, TyTy::BaseType *self,
      63              :                      std::vector<TyTy::SubstitutionParamMapping> substitutions);
      64              : 
      65              :   TyTy::FnType *resolve_function_signature (HIR::Function &function);
      66              : 
      67              :   HIR::ImplBlock &parent;
      68              :   TyTy::BaseType *self;
      69              :   std::vector<TyTy::SubstitutionParamMapping> substitutions;
      70              : 
      71              :   TyTy::BaseType *result = nullptr;
      72              : };
      73              : 
      74              : class TypeCheckImplItemWithTrait : public TypeCheckBase,
      75              :                                    public HIR::HIRImplVisitor
      76              : {
      77              : public:
      78              :   static TyTy::TypeBoundPredicateItem
      79              :   Resolve (HIR::ImplBlock &parent, HIR::ImplItem &item, TyTy::BaseType *self,
      80              :            TyTy::TypeBoundPredicate &trait_reference,
      81              :            std::vector<TyTy::SubstitutionParamMapping> substitutions);
      82              : 
      83              :   void visit (HIR::ConstantItem &constant) override;
      84              :   void visit (HIR::TypeAlias &type) override;
      85              :   void visit (HIR::Function &function) override;
      86              : 
      87              : protected:
      88              :   // this allows us to inherit the must_use specified on a trait definition onto
      89              :   // its implementation
      90              :   void merge_attributes (AST::AttrVec &impl_item_attrs,
      91              :                          const HIR::TraitItem &trait_item);
      92              : 
      93              : private:
      94              :   TypeCheckImplItemWithTrait (
      95              :     HIR::ImplBlock &parent, TyTy::BaseType *self,
      96              :     TyTy::TypeBoundPredicate &trait_reference,
      97              :     std::vector<TyTy::SubstitutionParamMapping> substitutions);
      98              : 
      99              :   bool is_trait_impl_block () const;
     100              : 
     101              :   TyTy::TypeBoundPredicate &trait_reference;
     102              :   TyTy::TypeBoundPredicateItem resolved_trait_item;
     103              : 
     104              :   HIR::ImplBlock &parent;
     105              :   TyTy::BaseType *self;
     106              :   std::vector<TyTy::SubstitutionParamMapping> substitutions;
     107              :   TyTy::RegionConstraints region_constraints;
     108              : };
     109              : 
     110              : } // namespace Resolver
     111              : } // namespace Rust
     112              : 
     113              : #endif // RUST_HIR_TYPE_CHECK_IMPLITEM_H