gcc/rust/util/rust-dump.h

   1 // Copyright (C) 2021-2023 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 // Common definitions useful for textual dump of IRs (AST and HIR).
  20
  21 #ifndef RUST_DUMP_H
  22 #define RUST_DUMP_H
  23
  24 namespace Rust {
  25
  26 class Indent
  27 {
  28 public:
  29   Indent () = default;
  30
  31   friend std::ostream &operator<< (std::ostream &stream, const Indent &indent)
  32   {
  33     return stream << std::string (indent.tabs, '\t');
  34   };
  35
  36   void increment () { tabs++; };
  37
  38   void decrement ()
  39   {
  40     rust_assert (tabs != 0);
  41     tabs--;
  42   };
  43
  44 private:
  45   size_t tabs = 0;
  46 };
  47 } // namespace Rust
  48
  49 #endif