2 * Copyright © 2016 Keith Packard <keithp@keithp.com>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
18 #define DBG(...) printf (__VA_ARGS__)
23 struct ao_lisp_funcs {
24 void (*print)(ao_poly);
25 void (*patom)(ao_poly);
28 static const struct ao_lisp_funcs ao_lisp_funcs[AO_LISP_NUM_TYPE] = {
30 .print = ao_lisp_cons_print,
31 .patom = ao_lisp_cons_patom,
34 .print = ao_lisp_string_print,
35 .patom = ao_lisp_string_patom,
38 .print = ao_lisp_int_print,
39 .patom = ao_lisp_int_print,
42 .print = ao_lisp_atom_print,
43 .patom = ao_lisp_atom_print,
46 .print = ao_lisp_builtin_print,
47 .patom = ao_lisp_builtin_print,
51 static const struct ao_lisp_funcs *
54 uint8_t type = ao_lisp_poly_type(p);
56 if (type < AO_LISP_NUM_TYPE)
57 return &ao_lisp_funcs[type];
62 ao_lisp_poly_print(ao_poly p)
64 const struct ao_lisp_funcs *f = funcs(p);
71 ao_lisp_poly_patom(ao_poly p)
73 const struct ao_lisp_funcs *f = funcs(p);
79 static const struct ao_lisp_type const *ao_lisp_types[AO_LISP_NUM_TYPE] = {
80 [AO_LISP_CONS] = &ao_lisp_cons_type,
82 [AO_LISP_STRING] = &ao_lisp_string_type,
83 [AO_LISP_OTHER] = (void *) 0x1,
84 [AO_LISP_ATOM] = &ao_lisp_atom_type,
85 [AO_LISP_BUILTIN] = &ao_lisp_builtin_type,
86 [AO_LISP_FRAME] = &ao_lisp_frame_type,
90 ao_lisp_poly_mark(ao_poly p)
92 const struct ao_lisp_type *lisp_type = ao_lisp_types[ao_lisp_poly_type(p)];
94 return ao_lisp_mark(lisp_type, ao_lisp_ref(p));
99 ao_lisp_poly_move(ao_poly *ref)
103 const struct ao_lisp_type *lisp_type;
110 type = p & AO_LISP_TYPE_MASK;
111 if (type == AO_LISP_OTHER)
112 type = ao_lisp_other_type(ao_lisp_move_map(ao_lisp_poly_other(p)));
114 if (type >= AO_LISP_NUM_TYPE)
117 lisp_type = ao_lisp_types[type];
120 addr = ao_lisp_ref(p);
121 ret = ao_lisp_move(lisp_type, &addr);
122 if (addr != ao_lisp_ref(p)) {
123 ao_poly np = ao_lisp_poly(addr, p & AO_LISP_TYPE_MASK);
124 DBG("poly %d moved %04x -> %04x\n",