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 builtin_size(void *addr)
21 return sizeof (struct ao_lisp_builtin);
25 builtin_mark(void *addr)
31 builtin_move(void *addr)
36 const struct ao_lisp_type ao_lisp_builtin_type = {
42 #ifdef AO_LISP_MAKE_CONST
43 char *ao_lisp_builtin_name(enum ao_lisp_builtin_id b) {
47 char *ao_lisp_args_name(uint8_t args) {
52 static const ao_poly builtin_names[] = {
53 [builtin_eval] = _ao_lisp_atom_eval,
54 [builtin_read] = _ao_lisp_atom_read,
55 [builtin_lambda] = _ao_lisp_atom_lambda,
56 [builtin_lexpr] = _ao_lisp_atom_lexpr,
57 [builtin_nlambda] = _ao_lisp_atom_nlambda,
58 [builtin_macro] = _ao_lisp_atom_macro,
59 [builtin_car] = _ao_lisp_atom_car,
60 [builtin_cdr] = _ao_lisp_atom_cdr,
61 [builtin_cons] = _ao_lisp_atom_cons,
62 [builtin_last] = _ao_lisp_atom_last,
63 [builtin_length] = _ao_lisp_atom_length,
64 [builtin_quote] = _ao_lisp_atom_quote,
65 [builtin_set] = _ao_lisp_atom_set,
66 [builtin_setq] = _ao_lisp_atom_setq,
67 [builtin_cond] = _ao_lisp_atom_cond,
68 [builtin_progn] = _ao_lisp_atom_progn,
69 [builtin_while] = _ao_lisp_atom_while,
70 [builtin_print] = _ao_lisp_atom_print,
71 [builtin_patom] = _ao_lisp_atom_patom,
72 [builtin_plus] = _ao_lisp_atom_2b,
73 [builtin_minus] = _ao_lisp_atom_2d,
74 [builtin_times] = _ao_lisp_atom_2a,
75 [builtin_divide] = _ao_lisp_atom_2f,
76 [builtin_mod] = _ao_lisp_atom_25,
77 [builtin_equal] = _ao_lisp_atom_3d,
78 [builtin_less] = _ao_lisp_atom_3c,
79 [builtin_greater] = _ao_lisp_atom_3e,
80 [builtin_less_equal] = _ao_lisp_atom_3c3d,
81 [builtin_greater_equal] = _ao_lisp_atom_3e3d,
82 [builtin_pack] = _ao_lisp_atom_pack,
83 [builtin_unpack] = _ao_lisp_atom_unpack,
84 [builtin_flush] = _ao_lisp_atom_flush,
85 [builtin_delay] = _ao_lisp_atom_delay,
86 [builtin_led] = _ao_lisp_atom_led,
87 [builtin_save] = _ao_lisp_atom_save,
88 [builtin_restore] = _ao_lisp_atom_restore,
89 [builtin_call_cc] = _ao_lisp_atom_call2fcc,
90 [builtin_collect] = _ao_lisp_atom_collect,
91 [builtin_symbolp] = _ao_lisp_atom_symbolp,
92 [builtin_listp] = _ao_lisp_atom_listp,
93 [builtin_stringp] = _ao_lisp_atom_stringp,
94 [builtin_numberp] = _ao_lisp_atom_numberp,
99 ao_lisp_builtin_name(enum ao_lisp_builtin_id b) {
100 if (b < _builtin_last)
101 return ao_lisp_poly_atom(builtin_names[b])->name;
105 static const ao_poly ao_lisp_args_atoms[] = {
106 [AO_LISP_FUNC_LAMBDA] = _ao_lisp_atom_lambda,
107 [AO_LISP_FUNC_LEXPR] = _ao_lisp_atom_lexpr,
108 [AO_LISP_FUNC_NLAMBDA] = _ao_lisp_atom_nlambda,
109 [AO_LISP_FUNC_MACRO] = _ao_lisp_atom_macro,
113 ao_lisp_args_name(uint8_t args)
115 args &= AO_LISP_FUNC_MASK;
116 if (args < sizeof ao_lisp_args_atoms / sizeof ao_lisp_args_atoms[0])
117 return ao_lisp_poly_atom(ao_lisp_args_atoms[args])->name;
123 ao_lisp_builtin_print(ao_poly b)
125 struct ao_lisp_builtin *builtin = ao_lisp_poly_builtin(b);
126 printf("%s", ao_lisp_builtin_name(builtin->func));
130 ao_lisp_check_argc(ao_poly name, struct ao_lisp_cons *cons, int min, int max)
134 while (cons && argc <= max) {
136 cons = ao_lisp_poly_cons(cons->cdr);
138 if (argc < min || argc > max)
139 return ao_lisp_error(AO_LISP_INVALID, "%s: invalid arg count", ao_lisp_poly_atom(name)->name);
140 return _ao_lisp_atom_t;
144 ao_lisp_arg(struct ao_lisp_cons *cons, int argc)
151 cons = ao_lisp_poly_cons(cons->cdr);
157 ao_lisp_check_argt(ao_poly name, struct ao_lisp_cons *cons, int argc, int type, int nil_ok)
159 ao_poly car = ao_lisp_arg(cons, argc);
161 if ((!car && !nil_ok) || ao_lisp_poly_type(car) != type)
162 return ao_lisp_error(AO_LISP_INVALID, "%s: invalid type for arg %d", ao_lisp_poly_atom(name)->name, argc);
163 return _ao_lisp_atom_t;
167 ao_lisp_car(struct ao_lisp_cons *cons)
169 if (!ao_lisp_check_argc(_ao_lisp_atom_car, cons, 1, 1))
171 if (!ao_lisp_check_argt(_ao_lisp_atom_car, cons, 0, AO_LISP_CONS, 0))
173 return ao_lisp_poly_cons(cons->car)->car;
177 ao_lisp_cdr(struct ao_lisp_cons *cons)
179 if (!ao_lisp_check_argc(_ao_lisp_atom_cdr, cons, 1, 1))
181 if (!ao_lisp_check_argt(_ao_lisp_atom_cdr, cons, 0, AO_LISP_CONS, 0))
183 return ao_lisp_poly_cons(cons->car)->cdr;
187 ao_lisp_cons(struct ao_lisp_cons *cons)
190 if(!ao_lisp_check_argc(_ao_lisp_atom_cons, cons, 2, 2))
192 if (!ao_lisp_check_argt(_ao_lisp_atom_cons, cons, 1, AO_LISP_CONS, 1))
194 car = ao_lisp_arg(cons, 0);
195 cdr = ao_lisp_arg(cons, 1);
196 return ao_lisp_cons_poly(ao_lisp_cons_cons(car, ao_lisp_poly_cons(cdr)));
200 ao_lisp_last(struct ao_lisp_cons *cons)
203 if (!ao_lisp_check_argc(_ao_lisp_atom_last, cons, 1, 1))
205 if (!ao_lisp_check_argt(_ao_lisp_atom_last, cons, 0, AO_LISP_CONS, 1))
207 l = ao_lisp_arg(cons, 0);
209 struct ao_lisp_cons *list = ao_lisp_poly_cons(l);
218 ao_lisp_length(struct ao_lisp_cons *cons)
220 if (!ao_lisp_check_argc(_ao_lisp_atom_length, cons, 1, 1))
222 if (!ao_lisp_check_argt(_ao_lisp_atom_length, cons, 0, AO_LISP_CONS, 1))
224 return ao_lisp_int_poly(ao_lisp_cons_length(ao_lisp_poly_cons(ao_lisp_arg(cons, 0))));
228 ao_lisp_quote(struct ao_lisp_cons *cons)
230 if (!ao_lisp_check_argc(_ao_lisp_atom_quote, cons, 1, 1))
232 return ao_lisp_arg(cons, 0);
236 ao_lisp_set(struct ao_lisp_cons *cons)
238 if (!ao_lisp_check_argc(_ao_lisp_atom_set, cons, 2, 2))
240 if (!ao_lisp_check_argt(_ao_lisp_atom_set, cons, 0, AO_LISP_ATOM, 0))
243 return ao_lisp_atom_set(ao_lisp_arg(cons, 0), ao_lisp_arg(cons, 1));
247 ao_lisp_setq(struct ao_lisp_cons *cons)
249 struct ao_lisp_cons *expand = 0;
250 if (!ao_lisp_check_argc(_ao_lisp_atom_setq, cons, 2, 2))
252 expand = ao_lisp_cons_cons(_ao_lisp_atom_set,
253 ao_lisp_cons_cons(ao_lisp_cons_poly(ao_lisp_cons_cons(_ao_lisp_atom_quote,
254 ao_lisp_cons_cons(cons->car, NULL))),
255 ao_lisp_poly_cons(cons->cdr)));
256 return ao_lisp_cons_poly(expand);
260 ao_lisp_cond(struct ao_lisp_cons *cons)
262 ao_lisp_set_cond(cons);
267 ao_lisp_progn(struct ao_lisp_cons *cons)
269 ao_lisp_stack->state = eval_progn;
270 ao_lisp_stack->sexprs = ao_lisp_cons_poly(cons);
275 ao_lisp_while(struct ao_lisp_cons *cons)
277 ao_lisp_stack->state = eval_while;
278 ao_lisp_stack->sexprs = ao_lisp_cons_poly(cons);
283 ao_lisp_print(struct ao_lisp_cons *cons)
285 ao_poly val = AO_LISP_NIL;
288 ao_lisp_poly_print(val);
289 cons = ao_lisp_poly_cons(cons->cdr);
298 ao_lisp_patom(struct ao_lisp_cons *cons)
300 ao_poly val = AO_LISP_NIL;
303 ao_lisp_poly_patom(val);
304 cons = ao_lisp_poly_cons(cons->cdr);
310 ao_lisp_math(struct ao_lisp_cons *cons, enum ao_lisp_builtin_id op)
312 ao_poly ret = AO_LISP_NIL;
315 ao_poly car = cons->car;
316 uint8_t rt = ao_lisp_poly_type(ret);
317 uint8_t ct = ao_lisp_poly_type(car);
319 cons = ao_lisp_poly_cons(cons->cdr);
321 if (rt == AO_LISP_NIL)
324 else if (rt == AO_LISP_INT && ct == AO_LISP_INT) {
325 int r = ao_lisp_poly_int(ret);
326 int c = ao_lisp_poly_int(car);
340 return ao_lisp_error(AO_LISP_DIVIDE_BY_ZERO, "divide by zero");
345 return ao_lisp_error(AO_LISP_DIVIDE_BY_ZERO, "mod by zero");
351 ret = ao_lisp_int_poly(r);
354 else if (rt == AO_LISP_STRING && ct == AO_LISP_STRING && op == builtin_plus)
355 ret = ao_lisp_string_poly(ao_lisp_string_cat(ao_lisp_poly_string(ret),
356 ao_lisp_poly_string(car)));
358 return ao_lisp_error(AO_LISP_INVALID, "invalid args");
364 ao_lisp_plus(struct ao_lisp_cons *cons)
366 return ao_lisp_math(cons, builtin_plus);
370 ao_lisp_minus(struct ao_lisp_cons *cons)
372 return ao_lisp_math(cons, builtin_minus);
376 ao_lisp_times(struct ao_lisp_cons *cons)
378 return ao_lisp_math(cons, builtin_times);
382 ao_lisp_divide(struct ao_lisp_cons *cons)
384 return ao_lisp_math(cons, builtin_divide);
388 ao_lisp_mod(struct ao_lisp_cons *cons)
390 return ao_lisp_math(cons, builtin_mod);
394 ao_lisp_compare(struct ao_lisp_cons *cons, enum ao_lisp_builtin_id op)
399 return _ao_lisp_atom_t;
402 cons = ao_lisp_poly_cons(cons->cdr);
404 ao_poly right = cons->car;
406 if (op == builtin_equal) {
410 uint8_t lt = ao_lisp_poly_type(left);
411 uint8_t rt = ao_lisp_poly_type(right);
412 if (lt == AO_LISP_INT && rt == AO_LISP_INT) {
413 int l = ao_lisp_poly_int(left);
414 int r = ao_lisp_poly_int(right);
421 case builtin_greater:
425 case builtin_less_equal:
429 case builtin_greater_equal:
436 } else if (lt == AO_LISP_STRING && rt == AO_LISP_STRING) {
437 int c = strcmp(ao_lisp_poly_string(left),
438 ao_lisp_poly_string(right));
444 case builtin_greater:
448 case builtin_less_equal:
452 case builtin_greater_equal:
462 cons = ao_lisp_poly_cons(cons->cdr);
464 return _ao_lisp_atom_t;
468 ao_lisp_equal(struct ao_lisp_cons *cons)
470 return ao_lisp_compare(cons, builtin_equal);
474 ao_lisp_less(struct ao_lisp_cons *cons)
476 return ao_lisp_compare(cons, builtin_less);
480 ao_lisp_greater(struct ao_lisp_cons *cons)
482 return ao_lisp_compare(cons, builtin_greater);
486 ao_lisp_less_equal(struct ao_lisp_cons *cons)
488 return ao_lisp_compare(cons, builtin_less_equal);
492 ao_lisp_greater_equal(struct ao_lisp_cons *cons)
494 return ao_lisp_compare(cons, builtin_greater_equal);
498 ao_lisp_pack(struct ao_lisp_cons *cons)
500 if (!ao_lisp_check_argc(_ao_lisp_atom_pack, cons, 1, 1))
502 if (!ao_lisp_check_argt(_ao_lisp_atom_pack, cons, 0, AO_LISP_CONS, 1))
504 return ao_lisp_string_pack(ao_lisp_poly_cons(ao_lisp_arg(cons, 0)));
508 ao_lisp_unpack(struct ao_lisp_cons *cons)
510 if (!ao_lisp_check_argc(_ao_lisp_atom_unpack, cons, 1, 1))
512 if (!ao_lisp_check_argt(_ao_lisp_atom_unpack, cons, 0, AO_LISP_STRING, 0))
514 return ao_lisp_string_unpack(ao_lisp_poly_string(ao_lisp_arg(cons, 0)));
518 ao_lisp_flush(struct ao_lisp_cons *cons)
520 if (!ao_lisp_check_argc(_ao_lisp_atom_flush, cons, 0, 0))
523 return _ao_lisp_atom_t;
527 ao_lisp_led(struct ao_lisp_cons *cons)
530 if (!ao_lisp_check_argc(_ao_lisp_atom_led, cons, 1, 1))
532 if (!ao_lisp_check_argt(_ao_lisp_atom_led, cons, 0, AO_LISP_INT, 0))
534 led = ao_lisp_arg(cons, 0);
535 ao_lisp_os_led(ao_lisp_poly_int(led));
540 ao_lisp_delay(struct ao_lisp_cons *cons)
543 if (!ao_lisp_check_argc(_ao_lisp_atom_led, cons, 1, 1))
545 if (!ao_lisp_check_argt(_ao_lisp_atom_led, cons, 0, AO_LISP_INT, 0))
547 delay = ao_lisp_arg(cons, 0);
548 ao_lisp_os_delay(ao_lisp_poly_int(delay));
553 ao_lisp_do_eval(struct ao_lisp_cons *cons)
555 if (!ao_lisp_check_argc(_ao_lisp_atom_eval, cons, 1, 1))
557 ao_lisp_stack->state = eval_sexpr;
562 ao_lisp_do_read(struct ao_lisp_cons *cons)
564 if (!ao_lisp_check_argc(_ao_lisp_atom_read, cons, 0, 0))
566 return ao_lisp_read();
570 ao_lisp_do_collect(struct ao_lisp_cons *cons)
574 free = ao_lisp_collect(AO_LISP_COLLECT_FULL);
575 return ao_lisp_int_poly(free);
578 const ao_lisp_func_t ao_lisp_builtins[] = {
579 [builtin_eval] = ao_lisp_do_eval,
580 [builtin_read] = ao_lisp_do_read,
581 [builtin_lambda] = ao_lisp_lambda,
582 [builtin_lexpr] = ao_lisp_lexpr,
583 [builtin_nlambda] = ao_lisp_nlambda,
584 [builtin_macro] = ao_lisp_macro,
585 [builtin_car] = ao_lisp_car,
586 [builtin_cdr] = ao_lisp_cdr,
587 [builtin_cons] = ao_lisp_cons,
588 [builtin_last] = ao_lisp_last,
589 [builtin_length] = ao_lisp_length,
590 [builtin_quote] = ao_lisp_quote,
591 [builtin_set] = ao_lisp_set,
592 [builtin_setq] = ao_lisp_setq,
593 [builtin_cond] = ao_lisp_cond,
594 [builtin_progn] = ao_lisp_progn,
595 [builtin_while] = ao_lisp_while,
596 [builtin_print] = ao_lisp_print,
597 [builtin_patom] = ao_lisp_patom,
598 [builtin_plus] = ao_lisp_plus,
599 [builtin_minus] = ao_lisp_minus,
600 [builtin_times] = ao_lisp_times,
601 [builtin_divide] = ao_lisp_divide,
602 [builtin_mod] = ao_lisp_mod,
603 [builtin_equal] = ao_lisp_equal,
604 [builtin_less] = ao_lisp_less,
605 [builtin_greater] = ao_lisp_greater,
606 [builtin_less_equal] = ao_lisp_less_equal,
607 [builtin_greater_equal] = ao_lisp_greater_equal,
608 [builtin_pack] = ao_lisp_pack,
609 [builtin_unpack] = ao_lisp_unpack,
610 [builtin_flush] = ao_lisp_flush,
611 [builtin_led] = ao_lisp_led,
612 [builtin_delay] = ao_lisp_delay,
613 [builtin_save] = ao_lisp_save,
614 [builtin_restore] = ao_lisp_restore,
615 [builtin_call_cc] = ao_lisp_call_cc,
616 [builtin_collect] = ao_lisp_do_collect,