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// Copyright (C) 2020-2025 Free Software Foundation, Inc.
// This file is part of GCC.
// GCC is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free
// Software Foundation; either version 3, or (at your option) any later
// version.
// GCC is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
// for more details.
// You should have received a copy of the GNU General Public License
// along with GCC; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
#ifndef RUST_CODEPOINT_H
#define RUST_CODEPOINT_H
#include "rust-system.h"
namespace Rust {
constexpr uint32_t MAX_ASCII_CODEPOINT = 0x7F;
constexpr uint32_t CODEPOINT_INVALID = 0xFFFE;
// FIXME: move this to rust-unicode.h?
struct Codepoint
{
uint32_t value;
// Creates a zero codepoint.
Codepoint () : value (0) {}
// Creates a codepoint from an encoded UTF-8 value.
Codepoint (uint32_t value) : value (value) {}
static Codepoint eof () { return Codepoint (UINT32_MAX); }
bool is_eof () const { return value == UINT32_MAX; }
bool is_ascii () const { return value <= MAX_ASCII_CODEPOINT; }
bool is_supplementary_character () const { return value > 0xFFFF; }
// Returns a C++ string containing string value of codepoint.
std::string as_string ();
bool operator== (Codepoint other) const { return value == other.value; }
bool operator!= (Codepoint other) const { return !operator== (other); }
};
} // namespace Rust
#endif
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