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       1              : // Copyright (C) 2025-2026 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_DERIVE_DEFAULT_H
      20              : #define RUST_DERIVE_DEFAULT_H
      21              : 
      22              : #include "rust-derive.h"
      23              : #include "rust-ast.h"
      24              : 
      25              : namespace Rust {
      26              : namespace AST {
      27              : 
      28              : // This derive is currently incomplete and only generate a stub implementation
      29              : // which does not do any debug formatting
      30           15 : class DeriveDefault : DeriveVisitor
      31              : {
      32              : public:
      33              :   DeriveDefault (location_t loc);
      34              : 
      35              :   std::unique_ptr<Item> go (Item &);
      36              : 
      37              : private:
      38              :   std::unique_ptr<Item> expanded;
      39              : 
      40              :   std::unique_ptr<Expr> default_call (std::unique_ptr<Type> &&type);
      41              : 
      42              :   std::unique_ptr<AssociatedItem>
      43              :   default_fn (std::unique_ptr<Expr> &&return_expr);
      44              : 
      45              :   std::unique_ptr<Item> default_impl (
      46              :     std::unique_ptr<AssociatedItem> &&default_fn, std::string name,
      47              :     const std::vector<std::unique_ptr<GenericParam>> &type_generics);
      48              : 
      49              :   virtual void visit_struct (StructStruct &struct_item) override;
      50              :   virtual void visit_tuple (TupleStruct &tuple_item) override;
      51              :   virtual void visit_enum (Enum &enum_item) override;
      52              :   virtual void visit_union (Union &enum_item) override;
      53              : };
      54              : 
      55              : } // namespace AST
      56              : } // namespace Rust
      57              : 
      58              : #endif // ! RUST_DERIVE_DEFAULT_H