#pragma once
#include "prelude/cpp.mpv"
@module basic

type Atom.
letfun Atom_new =
  new a:Atom;
  a.

type Unit.
const unit:Atom.

channel C.

#define CODEIMPL private

#define DUMMY(x) MCAT(MCAT(MCAT(dummy_, x), _), __LINE__)
#define ASSERT(x) if x then DUMMY(assert) <- unit

#define REP0(x)  0
#define REP1(x)  (x)
#define REP2(x)  (x) | (x)
#define REP3(x)  REP2(x)  | (x)
#define REP4(x)  REP3(x)  | (x)
#define REP5(x)  REP4(x)  | (x)
#define REP6(x)  REP5(x)  | (x)
#define REP7(x)  REP6(x)  | (x)
#define REP8(x)  REP7(x)  | (x)
#define REP9(x)  REP8(x)  | (x)
#define REP10(x) REP9(x)  | (x)
#define REP11(x) REP10(x) | (x)
#define REP12(x) REP11(x) | (x)
#define REP13(x) REP12(x) | (x)
#define REP14(x) REP13(x) | (x)
#define REP15(x) REP14(x) | (x)
#define REP16(x) REP15(x) | (x)
#define REP17(x) REP16(x) | (x)
#define REP18(x) REP17(x) | (x)
#define REP19(x) REP18(x) | (x)
#define REP20(x) REP19(x) | (x)
#define REPdisable(x) REP0(x)
#define REPunbounded(x) !(x)
#define REP(n, x) CAT(REP, n)(x)

#define NOP DUMMY(nop) <- unit