1  // Copyright (C) 2020-2023 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_CODEPOINT_H
      20  #define RUST_CODEPOINT_H
      21  
      22  #include "rust-system.h"
      23  
      24  namespace Rust {
      25  struct Codepoint
      26  {
      27    uint32_t value;
      28  
      29    // Creates a zero codepoint.
      30    Codepoint () : value (0) {}
      31  
      32    // Creates a codepoint from an encoded UTF-8 value.
      33    Codepoint (uint32_t value) : value (value) {}
      34  
      35    static Codepoint eof () { return Codepoint (UINT32_MAX); }
      36    bool is_eof () const { return value == UINT32_MAX; }
      37  
      38    // Returns a C++ string containing string value of codepoint.
      39    std::string as_string ();
      40  
      41    bool operator== (Codepoint other) const { return value == other.value; }
      42    bool operator!= (Codepoint other) const { return !operator== (other); }
      43  };
      44  } // namespace Rust
      45  
      46  #endif