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/*
* Copyright © 2017 Keith Packard <keithp@keithp.com>
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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.
*/
#include "ao_scheme.h"
static void bool_mark(void *addr)
{
(void) addr;
}
static int bool_size(void *addr)
{
(void) addr;
return sizeof (struct ao_scheme_bool);
}
static void bool_move(void *addr)
{
(void) addr;
}
const struct ao_scheme_type ao_scheme_bool_type = {
.mark = bool_mark,
.size = bool_size,
.move = bool_move,
.name = "bool"
};
void
ao_scheme_bool_write(FILE *out, ao_poly v, bool write)
{
struct ao_scheme_bool *b = ao_scheme_poly_bool(v);
(void) write;
if (b->value)
fprintf(out, "#t");
else
fprintf(out, "#f");
}
ao_poly
ao_scheme_do_booleanp(struct ao_scheme_cons *cons)
{
return ao_scheme_do_typep(_ao_scheme_atom_boolean3f, AO_SCHEME_BOOL, cons);
}
#ifdef AO_SCHEME_MAKE_CONST
struct ao_scheme_bool *ao_scheme_true, *ao_scheme_false;
struct ao_scheme_bool *
ao_scheme_bool_get(uint8_t value)
{
struct ao_scheme_bool **b;
if (value)
b = &ao_scheme_true;
else
b = &ao_scheme_false;
if (!*b) {
*b = ao_scheme_alloc(sizeof (struct ao_scheme_bool));
(*b)->type = AO_SCHEME_BOOL;
(*b)->value = value;
}
return *b;
}
#endif
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