gcc/rust/checks/errors/rust-feature.h

   1 // Copyright (C) 2020-2022 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_FEATURE_H
  20 #define RUST_FEATURE_H
  21
  22 #include "rust-session-manager.h"
  23 #include "rust-optional.h"
  24
  25 namespace Rust {
  26
  27 class Feature
  28 {
  29 public:
  30   enum class State
  31   {
  32     ACCEPTED,
  33     ACTIVE,
  34     REMOVED,
  35     STABILIZED,
  36   };
  37
  38   enum class Name
  39   {
  40     ASSOCIATED_TYPE_BOUNDS,
  41     INTRINSICS,
  42     RUSTC_ATTRS,
  43     DECL_MACRO,
  44   };
  45
  46   const std::string &as_string () { return m_name_str; }
  47   Name name () { return m_name; }
  48   const std::string &description () { return m_description; }
  49   State state () { return m_state; }
  50
  51   static Optional<Name> as_name (const std::string &name);
  52   static Feature create (Name name);
  53
  54 private:
  55   Feature (Name name, State state, const char *name_str,
  56            const char *rustc_since, uint64_t issue_number,
  57            const Optional<CompileOptions::Edition> &edition,
  58            const char *description)
  59     : m_state (state), m_name (name), m_name_str (name_str),
  60       m_rustc_since (rustc_since), issue (issue_number), edition (edition),
  61       m_description (description)
  62   {}
  63
  64   State m_state;
  65   Name m_name;
  66   std::string m_name_str;
  67   std::string m_rustc_since;
  68   uint64_t issue;
  69   Optional<CompileOptions::Edition> edition;
  70   std::string m_description;
  71
  72   static const std::map<std::string, Name> name_hash_map;
  73 };
  74
  75 } // namespace Rust
  76 #endif