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/*
* Copyright © 2016 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_lisp.h"
static void (*const ao_lisp_print_funcs[AO_LISP_NUM_TYPE])(ao_poly) = {
[AO_LISP_CONS] = ao_lisp_cons_print,
[AO_LISP_STRING] = ao_lisp_string_print,
[AO_LISP_INT] = ao_lisp_int_print,
[AO_LISP_ATOM] = ao_lisp_atom_print,
[AO_LISP_BUILTIN] = ao_lisp_builtin_print
};
ao_poly
ao_lisp_poly_print(ao_poly p)
{
void (*print)(ao_poly) = ao_lisp_print_funcs[ao_lisp_poly_type(p)];
if (print)
print(p);
return p;
}
static const struct ao_lisp_type const *ao_lisp_types[AO_LISP_NUM_TYPE] = {
[AO_LISP_CONS] = &ao_lisp_cons_type,
[AO_LISP_STRING] = &ao_lisp_string_type,
[AO_LISP_ATOM] = &ao_lisp_atom_type,
[AO_LISP_BUILTIN] = &ao_lisp_builtin_type,
};
void
ao_lisp_poly_mark(ao_poly p)
{
const struct ao_lisp_type *lisp_type = ao_lisp_types[ao_lisp_poly_type(p)];
if (lisp_type)
ao_lisp_mark(lisp_type, ao_lisp_ref(p));
}
ao_poly
ao_lisp_poly_move(ao_poly p)
{
uint8_t type = p & AO_LISP_TYPE_MASK;
const struct ao_lisp_type *lisp_type;
if (type == AO_LISP_OTHER)
type = ao_lisp_other_type(ao_lisp_move_map(ao_lisp_poly_other(p)));
lisp_type = ao_lisp_types[type];
if (lisp_type)
p = ao_lisp_poly(ao_lisp_move(lisp_type, ao_lisp_ref(p)), p & AO_LISP_TYPE_MASK);
return p;
}
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