gcc/rust/expand/rust-derive.cc

   1 // Copyright (C) 2020-2024 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 #include "rust-derive.h"
  20 #include "rust-derive-clone.h"
  21 #include "rust-derive-copy.h"
  22
  23 namespace Rust {
  24 namespace AST {
  25
  26 DeriveVisitor::DeriveVisitor (location_t loc)
  27   : loc (loc), builder (Builder (loc))
  28 {}
  29
  30 std::unique_ptr<Item>
  31 DeriveVisitor::derive (Item &item, const Attribute &attr,
  32                        BuiltinMacro to_derive)
  33 {
  34   switch (to_derive)
  35     {
  36     case BuiltinMacro::Clone:
  37       return DeriveClone (attr.get_locus ()).go (item);
  38     case BuiltinMacro::Copy:
  39       return DeriveCopy (attr.get_locus ()).go (item);
  40     case BuiltinMacro::Debug:
  41     case BuiltinMacro::Default:
  42     case BuiltinMacro::Eq:
  43     case BuiltinMacro::PartialEq:
  44     case BuiltinMacro::Ord:
  45     case BuiltinMacro::PartialOrd:
  46     case BuiltinMacro::Hash:
  47     default:
  48       rust_sorry_at (attr.get_locus (), "unimplemented builtin derive macro");
  49       return nullptr;
  50     };
  51 }
  52
  53 } // namespace AST
  54 } // namespace Rust