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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"
#if 0
#define DBG(...) printf (__VA_ARGS__)
#else
#define DBG(...)
#endif
struct ao_lisp_funcs {
void (*print)(ao_poly);
void (*patom)(ao_poly);
};
static const struct ao_lisp_funcs ao_lisp_funcs[AO_LISP_NUM_TYPE] = {
[AO_LISP_CONS] = {
.print = ao_lisp_cons_print,
.patom = ao_lisp_cons_patom,
},
[AO_LISP_STRING] = {
.print = ao_lisp_string_print,
.patom = ao_lisp_string_patom,
},
[AO_LISP_INT] = {
.print = ao_lisp_int_print,
.patom = ao_lisp_int_print,
},
[AO_LISP_ATOM] = {
.print = ao_lisp_atom_print,
.patom = ao_lisp_atom_print,
},
[AO_LISP_BUILTIN] = {
.print = ao_lisp_builtin_print,
.patom = ao_lisp_builtin_print,
}
};
static const struct ao_lisp_funcs *
funcs(ao_poly p)
{
uint8_t type = ao_lisp_poly_type(p);
if (type < AO_LISP_NUM_TYPE)
return &ao_lisp_funcs[type];
return NULL;
}
void
ao_lisp_poly_print(ao_poly p)
{
const struct ao_lisp_funcs *f = funcs(p);
if (f && f->print)
f->print(p);
}
void
ao_lisp_poly_patom(ao_poly p)
{
const struct ao_lisp_funcs *f = funcs(p);
if (f && f->patom)
f->patom(p);
}
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