(* This Source Code Form is subject to the terms of the Mozilla Public License,
  v. 2.0. If a copy of the MPL was not distributed with this file, You can
  obtain one at https://mozilla.org/MPL/2.0/. *)
module;

import cstring, cstdio;

type
  Identifier = [256]Char;
  TextLocation* = record
    line: Word;
    column: Word
  end;

proc write*(fd: Int, buf: Pointer, Word: Int) -> Int; extern;

proc write_s*(value: String);
begin
  write(1, cast(value.ptr: Pointer), cast(value.length: Int))
end;

proc write_z*(value: ^Char);
begin
  write(1, cast(value: Pointer), cast(strlen(value): Int))
end;

proc write_b*(value: Bool);
begin
  if value then
    write_s("true")
  else
    write_s("false")
  end
end;

proc write_c*(value: Char);
begin
  putchar(cast(value: Int));
  fflush(nil)
end;

proc write_i*(value: Int);
var
  digit: Int;
  n: Word;
  buffer: [10]Char;
begin
  n := 10u;

  if value = 0 then
    write_c('0')
  end;
  while value <> 0 do
    digit := value % 10;
    value := value / 10;

    buffer[n] := cast(cast('0': Int) + digit: Char);
    n := n - 1u
  end;
  while n < 10u do
    n := n + 1u;
    write_c(buffer[n])
  end
end;

proc write_u*(value: Word);
begin
  write_i(cast(value: Int))
end;

end.