#include <string.h>

#include "picrin.h"

bool
pic_eq_p(pic_state *pic, pic_value x, pic_value y)
{
  if (pic_type(x) != pic_type(y))
    return false;

  switch (pic_type(x)) {
  case PIC_TT_NIL:
    return true;
  case PIC_TT_SYMBOL:
    return pic_sym(x) == pic_sym(y);
  default:
    return false;
  }
}

static pic_value
pic_bool_eq_p(pic_state *pic)
{
  pic_value x, y;

  pic_get_args(pic, "oo", &x, &y);

  return pic_bool_value(pic_eq_p(pic, x, y));
}

void
pic_init_bool(pic_state *pic)
{
  pic_defun(pic, "eq?", pic_bool_eq_p);
}