1 /* -*-comment-start: "//";comment-end:""-*-
2 * Mes --- Maxwell Equations of Software
3 * Copyright © 2016,2017 Jan Nieuwenhuizen <janneke@gnu.org>
5 * This file is part of Mes.
7 * Mes is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 3 of the License, or (at
10 * your option) any later version.
12 * Mes is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Mes. If not, see <http://www.gnu.org/licenses/>.
42 #define FIXED_PRIMITIVES 1
44 int ARENA_SIZE = 100000;
45 int MAX_ARENA_SIZE = 20000000;
49 enum type_t {TCHAR, TCLOSURE, TCONTINUATION, TFUNCTION, TKEYWORD, TMACRO, TNUMBER, TPAIR, TREF, TSPECIAL, TSTRING, TSYMBOL, TVALUES, TVECTOR, TBROKEN_HEART};
50 typedef SCM (*function0_t) (void);
51 typedef SCM (*function1_t) (SCM);
52 typedef SCM (*function2_t) (SCM, SCM);
53 typedef SCM (*function3_t) (SCM, SCM, SCM);
54 typedef SCM (*functionn_t) (SCM);
57 function0_t function0;
58 function1_t function1;
59 function2_t function2;
60 function3_t function3;
61 functionn_t functionn;
87 struct scm scm_nil = {TSPECIAL, "()",0};
88 struct scm scm_f = {TSPECIAL, "#f",0};
89 struct scm scm_t = {TSPECIAL, "#t",0};
90 struct scm scm_dot = {TSPECIAL, ".",0};
91 struct scm scm_arrow = {TSPECIAL, "=>",0};
92 struct scm scm_undefined = {TSPECIAL, "*undefined*",0};
93 struct scm scm_unspecified = {TSPECIAL, "*unspecified*",0};
94 struct scm scm_closure = {TSPECIAL, "*closure*",0};
95 struct scm scm_circular = {TSPECIAL, "*circular*",0};
96 struct scm scm_begin = {TSPECIAL, "*begin*",0};
98 struct scm scm_symbol_dot = {TSYMBOL, "*dot*",0};
99 struct scm scm_symbol_lambda = {TSYMBOL, "lambda",0};
100 struct scm scm_symbol_begin = {TSYMBOL, "begin",0};
101 struct scm scm_symbol_if = {TSYMBOL, "if",0};
102 struct scm scm_symbol_quote = {TSYMBOL, "quote",0};
103 struct scm scm_symbol_set_x = {TSYMBOL, "set!",0};
105 struct scm scm_symbol_sc_expand = {TSYMBOL, "sc-expand",0};
106 struct scm scm_symbol_macro_expand = {TSYMBOL, "macro-expand",0};
107 struct scm scm_symbol_sc_expander_alist = {TSYMBOL, "*sc-expander-alist*",0};
109 struct scm scm_symbol_call_with_values = {TSYMBOL, "call-with-values",0};
110 struct scm scm_call_with_current_continuation = {TSPECIAL, "*call/cc*",0};
111 struct scm scm_symbol_call_with_current_continuation = {TSYMBOL, "call-with-current-continuation",0};
112 struct scm scm_symbol_current_module = {TSYMBOL, "current-module",0};
113 struct scm scm_symbol_primitive_load = {TSYMBOL, "primitive-load",0};
114 struct scm scm_symbol_read_input_file = {TSYMBOL, "read-input-file",0};
115 struct scm scm_symbol_write = {TSYMBOL, "write",0};
116 struct scm scm_symbol_display = {TSYMBOL, "display",0};
118 struct scm scm_symbol_throw = {TSYMBOL, "throw",0};
119 struct scm scm_symbol_not_a_pair = {TSYMBOL, "not-a-pair",0};
120 struct scm scm_symbol_system_error = {TSYMBOL, "system-error",0};
121 struct scm scm_symbol_wrong_number_of_args = {TSYMBOL, "wrong-number-of-args",0};
122 struct scm scm_symbol_wrong_type_arg = {TSYMBOL, "wrong-type-arg",0};
123 struct scm scm_symbol_unbound_variable = {TSYMBOL, "unbound-variable",0};
125 struct scm scm_symbol_argv = {TSYMBOL, "%argv",0};
126 struct scm scm_symbol_mes_prefix = {TSYMBOL, "%prefix",0};
127 struct scm scm_symbol_mes_version = {TSYMBOL, "%version",0};
129 struct scm scm_symbol_car = {TSYMBOL, "car",0};
130 struct scm scm_symbol_cdr = {TSYMBOL, "cdr",0};
131 struct scm scm_symbol_null_p = {TSYMBOL, "null?",0};
132 struct scm scm_symbol_eq_p = {TSYMBOL, "eq?",0};
133 struct scm scm_symbol_cons = {TSYMBOL, "cons",0};
135 struct scm scm_vm_evlis = {TSPECIAL, "*vm-evlis*",0};
136 struct scm scm_vm_evlis2 = {TSPECIAL, "*vm-evlis2*",0};
137 struct scm scm_vm_evlis3 = {TSPECIAL, "*vm-evlis3*",0};
138 struct scm scm_vm_apply = {TSPECIAL, "core:apply",0};
139 struct scm scm_vm_apply2 = {TSPECIAL, "*vm-apply2*",0};
140 struct scm scm_vm_eval = {TSPECIAL, "core:eval",0};
143 struct scm scm_vm_eval_car = {TSPECIAL, "*vm-eval-car*",0};
144 struct scm scm_vm_eval_cdr = {TSPECIAL, "*vm-eval-cdr*",0};
145 struct scm scm_vm_eval_cons = {TSPECIAL, "*vm-eval-cons*",0};
146 struct scm scm_vm_eval_null_p = {TSPECIAL, "*vm-eval-null-p*",0};
148 struct scm scm_vm_eval_set_x = {TSPECIAL, "*vm-eval-set!*",0};
149 struct scm scm_vm_eval_macro = {TSPECIAL, "*vm-eval-macro*",0};
150 struct scm scm_vm_eval2 = {TSPECIAL, "*vm-eval2*",0};
151 struct scm scm_vm_macro_expand = {TSPECIAL, "core:macro-expand",0};
152 struct scm scm_vm_begin = {TSPECIAL, "*vm-begin*",0};
153 struct scm scm_vm_begin_read_input_file = {TSPECIAL, "*vm-begin-read-input-file*",0};
154 struct scm scm_vm_begin2 = {TSPECIAL, "*vm-begin2*",0};
155 struct scm scm_vm_if = {TSPECIAL, "*vm-if*",0};
156 struct scm scm_vm_if_expr = {TSPECIAL, "*vm-if-expr*",0};
157 struct scm scm_vm_call_with_values2 = {TSPECIAL, "*vm-call-with-values2*",0};
158 struct scm scm_vm_call_with_current_continuation2 = {TSPECIAL, "*vm-call-with-current-continuation2*",0};
159 struct scm scm_vm_return = {TSPECIAL, "*vm-return*",0};
161 struct scm scm_symbol_gnuc = {TSYMBOL, "%gnuc",0};
162 struct scm scm_symbol_mesc = {TSYMBOL, "%mesc",0};
164 struct scm scm_test = {TSYMBOL, "test",0};
169 struct scm *g_news = 0;
171 bool g_debug = false;
173 #include "mes.symbols.h"
179 struct function g_functions[200];
182 SCM g_continuations = 0;
186 SCM r1 = 0; // param 1
187 SCM r2 = 0; // save 2+load/dump
188 SCM r3 = 0; // continuation
198 #define CAR(x) g_cells[x].car
199 #define CDR(x) g_cells[x].cdr
200 #define CONTINUATION(x) g_cells[x].cdr
201 #define HITS(x) g_cells[x].hits
202 #define LENGTH(x) g_cells[x].length
203 #define NAME(x) g_cells[x].name
204 #define STRING(x) g_cells[x].string
205 #define TYPE(x) g_cells[x].type
206 #define CLOSURE(x) g_cells[x].closure
207 #define MACRO(x) g_cells[x].macro
208 #define REF(x) g_cells[x].ref
209 #define VALUE(x) g_cells[x].value
210 #define VECTOR(x) g_cells[x].vector
211 #define FUNCTION(x) g_functions[g_cells[x].function]
213 #define NTYPE(x) g_news[x].type
215 #define NCAR(x) g_news[x].car
216 #define NLENGTH(x) g_news[x].length
218 #define NCDR(x) g_news[x].cdr
219 #define NVALUE(x) g_news[x].value
220 #define NVECTOR(x) g_news[x].vector
223 #define CAAR(x) CAR (CAR (x))
224 #define CADR(x) CAR (CDR (x))
225 #define CDAR(x) CDR (CAR (x))
226 #define CDDR(x) CDR (CDR (x))
227 #define CADAR(x) CAR (CDR (CAR (x)))
228 #define CADDR(x) CAR (CDR (CDR (x)))
229 #define CDDDR(x) CDR (CDR (CDR (x)))
230 #define CDADAR(x) CAR (CDR (CAR (CDR (x))))
232 #define MAKE_CHAR(n) make_cell_ (tmp_num_ (TCHAR), 0, tmp_num2_ (n))
233 #define MAKE_CONTINUATION(n) make_cell_ (tmp_num_ (TCONTINUATION), n, g_stack)
234 #define MAKE_NUMBER(n) make_cell_ (tmp_num_ (TNUMBER), 0, tmp_num2_ (n))
235 #define MAKE_REF(n) make_cell_ (tmp_num_ (TREF), n, 0)
236 #define MAKE_STRING(x) make_cell_ (tmp_num_ (TSTRING), x, 0)
238 SCM vm_call (function0_t f, SCM p1, SCM a);
239 char const* itoa(int);
241 #define eputs(s) fputs(s, stderr)
246 g_cells[tmp_num].value = x;
253 g_cells[tmp_num2].value = x;
260 assert (g_free + n < ARENA_SIZE);
267 make_cell_ (SCM type, SCM car, SCM cdr)
270 assert (TYPE (type) == TNUMBER);
271 TYPE (x) = VALUE (type);
272 if (VALUE (type) == TCHAR || VALUE (type) == TNUMBER) {
273 if (car) CAR (x) = CAR (car);
274 if (cdr) CDR (x) = CDR (cdr);
275 } else if (VALUE (type) == TFUNCTION) {
276 if (car) CAR (x) = car;
277 if (cdr) CDR (x) = CDR (cdr);
288 g_cells[tmp_num].value = TSYMBOL;
289 SCM x = make_cell_ (tmp_num, s, 0);
290 g_symbols = cons (x, g_symbols);
295 list_of_char_equal_p (SCM a, SCM b) ///((internal))
297 while (a != cell_nil && b != cell_nil && VALUE (car (a)) == VALUE (car (b))) {
298 assert (TYPE (car (a)) == TCHAR);
299 assert (TYPE (car (b)) == TCHAR);
303 return (a == cell_nil && b == cell_nil) ? cell_t : cell_f;
307 lookup_symbol_ (SCM s)
311 if (list_of_char_equal_p (STRING (car (x)), s) == cell_t) break;
315 if (!x) x = make_symbol_ (s);
322 return MAKE_NUMBER (TYPE (x));
328 return (TYPE (x) != TCONTINUATION
329 && (TYPE (CAR (x)) == TPAIR // FIXME: this is weird
330 || TYPE (CAR (x)) == TREF
331 || TYPE (CAR (x)) == TSPECIAL
332 || TYPE (CAR (x)) == TSYMBOL
333 || TYPE (CAR (x)) == TSTRING)) ? CAR (x) : MAKE_NUMBER (CAR (x));
339 return (TYPE (CDR (x)) == TPAIR
340 || TYPE (CDR (x)) == TREF
341 || TYPE (CAR (x)) == TSPECIAL
342 || TYPE (CDR (x)) == TSYMBOL
343 || TYPE (CDR (x)) == TSTRING) ? CDR (x) : MAKE_NUMBER (CDR (x));
349 assert (TYPE (x) == TFUNCTION);
350 return MAKE_NUMBER (FUNCTION (x).arity);
356 g_cells[tmp_num].value = TPAIR;
357 return make_cell_ (tmp_num, x, y);
363 if (TYPE (x) != TPAIR) error (cell_symbol_not_a_pair, cons (x, cell_symbol_car));
370 if (TYPE (x) != TPAIR) error (cell_symbol_not_a_pair, cons (x, cell_symbol_cdr));
375 list (SCM x) ///((arity . n))
383 return x == cell_nil ? cell_t : cell_f;
390 || ((TYPE (x) == TKEYWORD && TYPE (y) == TKEYWORD
391 && STRING (x) == STRING (y)))
392 || (TYPE (x) == TCHAR && TYPE (y) == TCHAR
393 && VALUE (x) == VALUE (y))
394 || (TYPE (x) == TNUMBER && TYPE (y) == TNUMBER
395 && VALUE (x) == VALUE (y)))
400 values (SCM x) ///((arity . n))
408 acons (SCM key, SCM value, SCM alist)
410 return cons (cons (key, value), alist);
418 while (x != cell_nil)
421 if (TYPE (x) != TPAIR) return MAKE_NUMBER (-1);
424 return MAKE_NUMBER (n);
428 error (SCM key, SCM x)
431 if ((throw = assq_ref_env (cell_symbol_throw, r0)) != cell_undefined)
432 return apply (throw, cons (key, cons (x, cell_nil)), r0);
433 display_error_ (key);
441 cstring_to_list (char const* s)
446 p = cons (MAKE_CHAR (s[i]), p);
451 append2 (SCM x, SCM y)
453 if (x == cell_nil) return y;
454 assert (TYPE (x) == TPAIR);
455 return cons (car (x), append2 (cdr (x), y));
459 pairlis (SCM x, SCM y, SCM a)
463 if (TYPE (x) != TPAIR)
464 return cons (cons (x, y), a);
465 return cons (cons (car (x), car (y)),
466 pairlis (cdr (x), cdr (y), a));
472 if ((FUNCTION (fn).arity > 0 || FUNCTION (fn).arity == -1)
473 && x != cell_nil && TYPE (CAR (x)) == TVALUES)
474 x = cons (CADAR (x), CDR (x));
475 if ((FUNCTION (fn).arity > 1 || FUNCTION (fn).arity == -1)
476 && x != cell_nil && TYPE (CDR (x)) == TPAIR && TYPE (CADR (x)) == TVALUES)
477 x = cons (CAR (x), cons (CDADAR (x), CDR (x)));
478 switch (FUNCTION (fn).arity)
480 case 0: return FUNCTION (fn).function0 ();
481 case 1: return FUNCTION (fn).function1 (car (x));
482 case 2: return FUNCTION (fn).function2 (car (x), CADR (x));
483 case 3: return FUNCTION (fn).function3 (car (x), CADR (x), car (CDDR (x)));
484 case -1: return FUNCTION (fn).functionn (x);
487 return cell_unspecified;
493 while (a != cell_nil && eq_p (x, CAAR (a)) == cell_f) a = CDR (a);
494 return a != cell_nil ? CAR (a) : cell_f;
498 assq_ref_env (SCM x, SCM a)
501 if (x == cell_f) return cell_undefined;
506 set_car_x (SCM x, SCM e)
508 assert (TYPE (x) == TPAIR);
510 return cell_unspecified;
514 set_cdr_x (SCM x, SCM e)
516 if (TYPE (x) != TPAIR) error (cell_symbol_not_a_pair, cons (x, cell_set_cdr_x));
518 return cell_unspecified;
522 set_env_x (SCM x, SCM e, SCM a)
524 SCM p = assert_defined (x, assq (x, a));
525 if (TYPE (p) != TPAIR) error (cell_symbol_not_a_pair, cons (p, x));
526 return set_cdr_x (p, e);
530 call_lambda (SCM e, SCM x, SCM aa, SCM a) ///((internal))
532 SCM cl = cons (cons (cell_closure, x), x);
535 return cell_unspecified;
539 make_closure_ (SCM args, SCM body, SCM a) ///((internal))xs
541 return make_cell_ (tmp_num_ (TCLOSURE), cell_f, cons (cons (cell_circular, a), cons (args, body)));
545 lookup_macro_ (SCM x, SCM a) ///((internal))
547 if (TYPE (x) != TSYMBOL) return cell_f;
548 SCM m = assq_ref_env (x, a);
549 if (TYPE (m) == TMACRO) return MACRO (m);
554 push_cc (SCM p1, SCM p2, SCM a, SCM c) ///((internal))
563 return cell_unspecified;
570 if (g_free + GC_SAFETY > ARENA_SIZE)
571 gc_pop_frame (gc (gc_push_frame ()));
575 case cell_vm_evlis: goto evlis;
576 case cell_vm_evlis2: goto evlis2;
577 case cell_vm_evlis3: goto evlis3;
578 case cell_vm_apply: goto apply;
579 case cell_vm_apply2: goto apply2;
580 case cell_vm_eval: goto eval;
582 case cell_vm_eval_car: goto eval_car;
583 case cell_vm_eval_cdr: goto eval_cdr;
584 case cell_vm_eval_cons: goto eval_cons;
585 case cell_vm_eval_null_p: goto eval_null_p;
587 case cell_vm_eval_set_x: goto eval_set_x;
588 case cell_vm_eval_macro: goto eval_macro;
589 case cell_vm_eval2: goto eval2;
590 case cell_vm_macro_expand: goto macro_expand;
591 case cell_vm_begin: goto begin;
592 case cell_vm_begin_read_input_file: goto begin_read_input_file;
593 case cell_vm_begin2: goto begin2;
594 case cell_vm_if: goto vm_if;
595 case cell_vm_if_expr: goto if_expr;
596 case cell_vm_call_with_current_continuation2: goto call_with_current_continuation2;
597 case cell_vm_call_with_values2: goto call_with_values2;
598 case cell_vm_return: goto vm_return;
599 case cell_unspecified: return r1;
607 if (r1 == cell_nil) goto vm_return;
608 if (TYPE (r1) != TPAIR) goto eval;
609 push_cc (car (r1), r1, r0, cell_vm_evlis2);
612 push_cc (cdr (r2), r1, r0, cell_vm_evlis3);
619 switch (TYPE (car (r1)))
622 check_formals (car (r1), MAKE_NUMBER (FUNCTION (car (r1)).arity), cdr (r1));
623 r1 = call (car (r1), cdr (r1)); /// FIXME: move into eval_apply
628 SCM cl = CLOSURE (car (r1));
629 SCM formals = CADR (cl);
630 SCM body = CDDR (cl);
633 check_formals (car (r1), formals, cdr (r1));
634 SCM p = pairlis (formals, cdr (r1), aa);
635 call_lambda (body, p, aa, r0);
641 g_stack = CONTINUATION (CAR (r1));
652 push_cc (cons (CADR (r1), CADDR (r1)), r1, r0, cell_vm_return);
657 push_cc (CADR (r1), r1, CADDR (r1), cell_vm_return);
660 case cell_call_with_current_continuation:
663 goto call_with_current_continuation;
665 default: check_apply (cell_f, car (r1));
670 if (car (r1) == cell_symbol_call_with_values)
673 goto call_with_values;
675 if (car (r1) == cell_symbol_current_module)
686 case cell_symbol_lambda:
688 SCM formals = CADR (car (r1));
689 SCM body = CDDR (car (r1));
690 SCM p = pairlis (formals, cdr (r1), r0);
691 check_formals (r1, formals, cdr (r1));
692 call_lambda (body, p, p, r0);
698 push_cc (car (r1), r1, r0, cell_vm_apply2);
701 check_apply (r1, car (r2));
702 r1 = cons (r1, cdr (r2));
713 case cell_symbol_car:
715 push_cc (CADR (r1), r1, r0, cell_vm_eval_car); goto eval;
717 x = r1; gc_pop_frame (); r1 = car (x); goto eval_apply;
719 case cell_symbol_cdr:
721 push_cc (CADR (r1), r1, r0, cell_vm_eval_cdr); goto eval;
723 x = r1; gc_pop_frame (); r1 = cdr (x); goto eval_apply;
725 case cell_symbol_cons: {
726 push_cc (CDR (r1), r1, r0, cell_vm_eval_cons); goto evlis;
730 r1 = cons (CAR (x), CADR (x));
733 case cell_symbol_null_p:
735 push_cc (CADR (r1), r1, r0, cell_vm_eval_null_p);
738 x = r1; gc_pop_frame (); r1 = null_p (x); goto eval_apply;
740 #endif // FIXED_PRIMITIVES
741 case cell_symbol_quote:
743 x = r1; gc_pop_frame (); r1 = CADR (x); goto eval_apply;
745 case cell_symbol_begin: goto begin;
746 case cell_symbol_lambda:
748 r1 = make_closure_ (CADR (r1), CDDR (r1), assq (cell_closure, r0));
751 case cell_symbol_if: {r1=cdr (r1); goto vm_if;}
752 case cell_symbol_set_x:
754 push_cc (car (CDDR (r1)), r1, r0, cell_vm_eval_set_x);
758 r1 = set_env_x (CADR (x), r1, r0);
761 case cell_vm_macro_expand:
763 push_cc (CADR (r1), r1, r0, cell_vm_return);
767 push_cc (r1, r1, r0, cell_vm_eval_macro);
773 if (TYPE (r1) == TPAIR)
775 set_cdr_x (r2, cdr (r1));
776 set_car_x (r2, car (r1));
780 push_cc (CDR (r1), r1, r0, cell_vm_eval2); goto evlis;
782 r1 = cons (car (r2), r1);
789 r1 = assert_defined (r1, assq_ref_env (r1, r0));
792 default: goto vm_return;
798 if (TYPE (r1) == TPAIR
799 && (macro = lookup_macro_ (car (r1), r0)) != cell_f)
801 r1 = cons (macro, CDR (r1));
804 else if (TYPE (r1) == TPAIR
805 && TYPE (CAR (r1)) == TSYMBOL
806 && ((expanders = assq_ref_env (cell_symbol_sc_expander_alist, r0)) != cell_undefined)
807 && ((macro = assq (CAR (r1), expanders)) != cell_f))
809 SCM sc_expand = assq_ref_env (cell_symbol_macro_expand, r0);
810 if (sc_expand != cell_undefined && sc_expand != cell_f)
812 r1 = cons (sc_expand, cons (r1, cell_nil));
819 x = cell_unspecified;
820 while (r1 != cell_nil) {
821 if (TYPE (r1) == TPAIR && TYPE (CAR (r1)) == TPAIR)
823 if (CAAR (r1) == cell_symbol_begin)
824 r1 = append2 (CDAR (r1), cdr (r1));
825 else if (CAAR (r1) == cell_symbol_primitive_load)
827 push_cc (cons (cell_symbol_read_input_file, cell_nil), r1, r0, cell_vm_begin_read_input_file);
829 begin_read_input_file:
830 r1 = append2 (r1, cdr (r2));
833 if (CDR (r1) == cell_nil)
838 push_cc (CAR (r1), r1, r0, cell_vm_begin2);
848 push_cc (car (r1), r1, r0, cell_vm_if_expr);
858 if (CDDR (r1) != cell_nil)
860 r1 = car (CDDR (r1));
863 r1 = cell_unspecified;
866 call_with_current_continuation:
868 x = MAKE_CONTINUATION (g_continuations++);
870 push_cc (cons (car (r1), cons (x, cell_nil)), x, r0, cell_vm_call_with_current_continuation2);
872 call_with_current_continuation2:
873 CONTINUATION (r2) = g_stack;
877 push_cc (cons (car (r1), cell_nil), r1, r0, cell_vm_call_with_values2);
880 if (TYPE (r1) == TVALUES)
882 r1 = cons (CADR (r2), r1);
893 gc_peek_frame () ///((internal))
895 SCM frame = car (g_stack);
898 r3 = car (CDDR (frame));
899 r0 = CADR (CDDR (frame));
904 gc_pop_frame () ///((internal))
906 SCM frame = gc_peek_frame (g_stack);
907 g_stack = cdr (g_stack);
912 gc_push_frame () ///((internal))
914 SCM frame = cons (r1, cons (r2, cons (r3, cons (r0, cell_nil))));
915 return g_stack = cons (frame, g_stack);
919 apply (SCM f, SCM x, SCM a) ///((internal))
921 push_cc (cons (f, x), cell_unspecified, r0, cell_unspecified);
923 return eval_apply ();
927 make_tmps (struct scm* cells)
930 cells[tmp].type = TCHAR;
932 cells[tmp_num].type = TNUMBER;
934 cells[tmp_num2].type = TNUMBER;
937 //
\f Environment setup
939 gc_init_cells () ///((internal))
941 g_cells = (struct scm *)malloc (2*ARENA_SIZE*sizeof(struct scm));
942 g_cells[0].type = TVECTOR;
943 g_cells[0].length = 1000;
944 g_cells[0].vector = 0;
946 g_cells[0].type = TCHAR;
947 g_cells[0].value = 'c';
951 gc_init_news () ///((internal))
953 g_news = g_cells-1 + ARENA_SIZE;
954 g_news[0].type = TVECTOR;
955 g_news[0].length = 1000;
956 g_news[0].vector = 0;
958 g_news[0].type = TCHAR;
959 g_news[0].value = 'n';
963 mes_symbols () ///((internal))
968 #include "mes.symbols.i"
970 g_symbol_max = g_free;
974 for (int i=1; i<g_symbol_max; i++)
975 g_symbols = cons (i, g_symbols);
979 #include "mes.symbol-names.i"
981 a = acons (cell_symbol_mes_version, MAKE_STRING (cstring_to_list (VERSION)), a);
982 a = acons (cell_symbol_mes_prefix, MAKE_STRING (cstring_to_list (PREFIX)), a);
985 a = acons (cell_symbol_label, cell_t, a);
987 a = acons (cell_symbol_dot, cell_dot, a);
988 a = acons (cell_symbol_begin, cell_begin, a);
989 a = acons (cell_symbol_call_with_current_continuation, cell_call_with_current_continuation, a);
990 a = acons (cell_symbol_sc_expand, cell_f, a);
993 a = acons (cell_symbol_gnuc, cell_t, a);
994 a = acons (cell_symbol_mesc, cell_f, a);
996 a = acons (cell_symbol_gnuc, cell_f, a);
997 a = acons (cell_symbol_mesc, cell_t, a);
1000 a = acons (cell_closure, a, a);
1006 mes_builtins (SCM a) ///((internal))
1010 // Do not sort: Order of these includes define builtins
1018 #include "gc.environment.i"
1019 #include "lib.environment.i"
1020 #include "math.environment.i"
1021 #include "mes.environment.i"
1022 #include "posix.environment.i"
1023 #include "reader.environment.i"
1024 #include "vector.environment.i"
1028 fputs ("functions: ", stderr);
1029 fputs (itoa (g_function), stderr);
1030 fputs ("\n", stderr);
1031 for (int i = 0; i < g_function; i++)
1033 fputs ("[", stderr);
1034 fputs (itoa (i), stderr);
1035 fputs ("]: ", stderr);
1036 fputs (g_functions[i].name, stderr);
1037 fputs ("\n", stderr);
1039 fputs ("\n", stderr);
1046 mes_g_stack (SCM a) ///((internal))
1052 g_stack = cons (cell_nil, cell_nil);
1057 mes_environment () ///((internal))
1059 SCM a = mes_symbols ();
1060 return mes_g_stack (a);
1072 main (int argc, char *argv[])
1075 g_debug = getenv ("MES_DEBUG");
1077 if (getenv ("MES_ARENA")) ARENA_SIZE = atoi (getenv ("MES_ARENA"));
1078 if (argc > 1 && !strcmp (argv[1], "--help")) return puts ("Usage: mes [--dump|--load] < FILE");
1079 if (argc > 1 && !strcmp (argv[1], "--version")) {puts ("Mes ");puts (VERSION);return 0;};
1081 r0 = mes_environment ();
1083 SCM program = (argc > 1 && !strcmp (argv[1], "--load"))
1084 ? bload_env (r0) : load_env (r0);
1085 if (argc > 1 && !strcmp (argv[1], "--dump")) return dump ();
1088 for (int i=argc; i; i--) lst = cons (MAKE_STRING (cstring_to_list (argv[i-1])), lst);
1089 r0 = acons (cell_symbol_argv, lst, r0);
1091 if (g_debug) {eputs ("program: "); display_error_ (r2); eputs ("\n");}
1092 push_cc (r2, cell_unspecified, r0, cell_unspecified);
1095 display_error_ (r1);
1099 if (g_debug) fprintf (stderr, "\nstats: [%d]\n", g_free);