1 /* -*-comment-start: "//";comment-end:""-*-
2 * Mes --- Maxwell Equations of Software
3 * Copyright © 2016,2017,2018 Jan (janneke) 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/>.
27 // minimal for boot-0.scm
28 // int ARENA_SIZE = 100000; // 32b: 1MiB, 64b: 2 MiB
29 // take a bit more to run all tests
30 int ARENA_SIZE = 400000; // 32b: 1MiB, 64b: 2 MiB
32 //int MAX_ARENA_SIZE = 60000000; // 32b: ~ 300MiB
33 int MAX_ARENA_SIZE = 166600000; // 32b: ~ 2GiB
34 //int MAX_ARENA_SIZE = 500000000; // 32b: ~ 8GiB
36 int MAX_ARENA_SIZE = 200000000; // 32b: 2.3GiB, 64b: 4.6GiB
47 SCM g_continuations = 0;
59 SCM g_macros = 1; // cell_nil
62 enum type_t {TCHAR, TCLOSURE, TCONTINUATION, TFUNCTION, TKEYWORD, TMACRO, TNUMBER, TPAIR, TREF, TSPECIAL, TSTRING, TSYMBOL, TVALUES, TVARIABLE, TVECTOR, TBROKEN_HEART};
71 int (*function) (void);
76 typedef SCM (*function0_t) (void);
77 typedef SCM (*function1_t) (SCM);
78 typedef SCM (*function2_t) (SCM, SCM);
79 typedef SCM (*function3_t) (SCM, SCM, SCM);
80 typedef SCM (*functionn_t) (SCM);
83 function0_t function0;
84 function1_t function1;
85 function2_t function2;
86 function3_t function3;
87 functionn_t functionn;
118 struct scm *g_cells = foobar;
119 struct scm *g_news = foobar;
121 struct scm *g_cells = 0;
122 struct scm *g_news = 0;
125 struct scm scm_nil = {TSPECIAL, "()",0};
126 struct scm scm_f = {TSPECIAL, "#f",0};
127 struct scm scm_t = {TSPECIAL, "#t",0};
128 struct scm scm_dot = {TSPECIAL, ".",0};
129 struct scm scm_arrow = {TSPECIAL, "=>",0};
130 struct scm scm_undefined = {TSPECIAL, "*undefined*",0};
131 struct scm scm_unspecified = {TSPECIAL, "*unspecified*",0};
132 struct scm scm_closure = {TSPECIAL, "*closure*",0};
133 struct scm scm_circular = {TSPECIAL, "*circular*",0};
134 struct scm scm_begin = {TSPECIAL, "*begin*",0};
136 struct scm scm_symbol_dot = {TSYMBOL, "*dot*",0};
137 struct scm scm_symbol_lambda = {TSYMBOL, "lambda",0};
138 struct scm scm_symbol_begin = {TSYMBOL, "begin",0};
139 struct scm scm_symbol_if = {TSYMBOL, "if",0};
140 struct scm scm_symbol_quote = {TSYMBOL, "quote",0};
141 struct scm scm_symbol_define = {TSYMBOL, "define",0};
142 struct scm scm_symbol_define_macro = {TSYMBOL, "define-macro",0};
144 struct scm scm_symbol_quasiquote = {TSYMBOL, "quasiquote", 0};
145 struct scm scm_symbol_unquote = {TSYMBOL, "unquote", 0};
146 struct scm scm_symbol_unquote_splicing = {TSYMBOL, "unquote-splicing", 0};
147 struct scm scm_symbol_syntax = {TSYMBOL, "syntax",0};
148 struct scm scm_symbol_quasisyntax = {TSYMBOL, "quasisyntax", 0};
149 struct scm scm_symbol_unsyntax = {TSYMBOL, "unsyntax", 0};
150 struct scm scm_symbol_unsyntax_splicing = {TSYMBOL, "unsyntax-splicing", 0};
152 struct scm scm_symbol_set_x = {TSYMBOL, "set!",0};
154 struct scm scm_symbol_sc_expand = {TSYMBOL, "sc-expand",0};
155 struct scm scm_symbol_macro_expand = {TSYMBOL, "macro-expand",0};
156 struct scm scm_symbol_portable_macro_expand = {TSYMBOL, "portable-macro-expand",0};
157 struct scm scm_symbol_sc_expander_alist = {TSYMBOL, "*sc-expander-alist*",0};
159 struct scm scm_symbol_call_with_values = {TSYMBOL, "call-with-values",0};
160 struct scm scm_call_with_current_continuation = {TSPECIAL, "*call/cc*",0};
161 struct scm scm_symbol_call_with_current_continuation = {TSYMBOL, "call-with-current-continuation",0};
162 struct scm scm_symbol_current_module = {TSYMBOL, "current-module",0};
163 struct scm scm_symbol_primitive_load = {TSYMBOL, "primitive-load",0};
164 struct scm scm_symbol_read_input_file = {TSYMBOL, "read-input-file",0};
165 struct scm scm_symbol_write = {TSYMBOL, "write",0};
166 struct scm scm_symbol_display = {TSYMBOL, "display",0};
168 struct scm scm_symbol_throw = {TSYMBOL, "throw",0};
169 struct scm scm_symbol_not_a_number = {TSYMBOL, "not-a-number",0};
170 struct scm scm_symbol_not_a_pair = {TSYMBOL, "not-a-pair",0};
171 struct scm scm_symbol_system_error = {TSYMBOL, "system-error",0};
172 struct scm scm_symbol_wrong_number_of_args = {TSYMBOL, "wrong-number-of-args",0};
173 struct scm scm_symbol_wrong_type_arg = {TSYMBOL, "wrong-type-arg",0};
174 struct scm scm_symbol_unbound_variable = {TSYMBOL, "unbound-variable",0};
176 struct scm scm_symbol_argv = {TSYMBOL, "%argv",0};
177 struct scm scm_symbol_mes_prefix = {TSYMBOL, "%prefix",0};
178 struct scm scm_symbol_mes_version = {TSYMBOL, "%version",0};
180 struct scm scm_symbol_car = {TSYMBOL, "car",0};
181 struct scm scm_symbol_cdr = {TSYMBOL, "cdr",0};
182 struct scm scm_symbol_pmatch_car = {TSYMBOL, "pmatch-car",0};
183 struct scm scm_symbol_pmatch_cdr = {TSYMBOL, "pmatch-cdr",0};
185 struct scm scm_vm_evlis = {TSPECIAL, "*vm-evlis*",0};
186 struct scm scm_vm_evlis2 = {TSPECIAL, "*vm-evlis2*",0};
187 struct scm scm_vm_evlis3 = {TSPECIAL, "*vm-evlis3*",0};
188 struct scm scm_vm_apply = {TSPECIAL, "core:apply",0};
189 struct scm scm_vm_apply2 = {TSPECIAL, "*vm-apply2*",0};
190 struct scm scm_vm_eval = {TSPECIAL, "core:eval",0};
192 struct scm scm_vm_eval_pmatch_car = {TSPECIAL, "*vm-eval-pmatch-car*",0};
193 struct scm scm_vm_eval_pmatch_cdr = {TSPECIAL, "*vm-eval-pmatch-cdr*",0};
194 struct scm scm_vm_eval_define = {TSPECIAL, "*vm-eval-define*",0};
196 struct scm scm_vm_eval_set_x = {TSPECIAL, "*vm-eval-set!*",0};
197 struct scm scm_vm_eval_macro_expand_eval = {TSPECIAL, "*vm:eval-macro-expand-eval*",0};
198 struct scm scm_vm_eval_macro_expand_expand = {TSPECIAL, "*vm:eval-macro-expand-expand*",0};
199 struct scm scm_vm_eval_check_func = {TSPECIAL, "*vm-eval-check-func*",0};
200 struct scm scm_vm_eval2 = {TSPECIAL, "*vm-eval2*",0};
201 struct scm scm_vm_macro_expand = {TSPECIAL, "core:macro-expand",0};
202 struct scm scm_vm_macro_expand_define = {TSPECIAL, "*vm:core:macro-expand-define*",0};
203 struct scm scm_vm_macro_expand_define_macro = {TSPECIAL, "*vm:core:macro-expand-define-macro*",0};
204 struct scm scm_vm_macro_expand_lambda = {TSPECIAL, "*vm:core:macro-expand-lambda*",0};
205 struct scm scm_vm_macro_expand_set_x = {TSPECIAL, "*vm:core:macro-expand-set!*",0};
206 struct scm scm_vm_begin_expand_primitive_load = {TSPECIAL, "*vm:core:begin-expand-primitive-load*",0};
207 struct scm scm_vm_begin_primitive_load = {TSPECIAL, "*vm:core:begin-primitive-load*",0};
208 struct scm scm_vm_macro_expand_car = {TSPECIAL, "*vm:core:macro-expand-car*",0};
209 struct scm scm_vm_macro_expand_cdr = {TSPECIAL, "*vm:macro-expand-cdr*",0};
210 struct scm scm_vm_begin_expand = {TSPECIAL, "*vm:begin-expand*",0};
211 struct scm scm_vm_begin_expand_eval = {TSPECIAL, "*vm:begin-expand-eval*",0};
212 struct scm scm_vm_begin_expand_macro = {TSPECIAL, "*vm:begin-expand-macro*",0};
213 struct scm scm_vm_begin = {TSPECIAL, "*vm-begin*",0};
214 struct scm scm_vm_begin_read_input_file = {TSPECIAL, "*vm-begin-read-input-file*",0};
215 struct scm scm_vm_begin_eval = {TSPECIAL, "*vm:begin-eval*",0};
216 struct scm scm_vm_if = {TSPECIAL, "*vm-if*",0};
217 struct scm scm_vm_if_expr = {TSPECIAL, "*vm-if-expr*",0};
218 struct scm scm_vm_call_with_values2 = {TSPECIAL, "*vm-call-with-values2*",0};
219 struct scm scm_vm_call_with_current_continuation2 = {TSPECIAL, "*vm-call-with-current-continuation2*",0};
220 struct scm scm_vm_return = {TSPECIAL, "*vm-return*",0};
222 struct scm scm_symbol_gnuc = {TSYMBOL, "%gnuc",0};
223 struct scm scm_symbol_mesc = {TSYMBOL, "%mesc",0};
225 struct scm scm_test = {TSYMBOL, "test",0};
228 #include "mes.mes.symbols.h"
230 #include "mes.symbols.h"
233 struct function g_functions[200];
236 #if !__GNUC__ || !_POSIX_SOURCE
239 #include "math.mes.h"
241 #include "posix.mes.h"
242 #include "reader.mes.h"
243 #include "vector.mes.h"
254 #define TYPE(x) g_cells[x].type
255 #define CAR(x) g_cells[x].car
256 #define CDR(x) g_cells[x].cdr
258 #define NTYPE(x) g_news[x].type
259 #define NCAR(x) g_news[x].car
260 #define NCDR(x) g_news[x].cdr
263 #define LENGTH(x) g_cells[x].car
264 #define REF(x) g_cells[x].car
265 #define STRING(x) g_cells[x].car
266 #define VARIABLE(x) g_cells[x].car
268 #define CLOSURE(x) g_cells[x].cdr
269 #define CONTINUATION(x) g_cells[x].cdr
271 #define FUNCTION(x) g_functions[g_cells[x].cdr]
272 #define FUNCTION0(x) g_functions[g_cells[x].cdr].function
273 #define MACRO(x) g_cells[x].cdr
274 #define VALUE(x) g_cells[x].cdr
275 #define VECTOR(x) g_cells[x].cdr
277 #define NLENGTH(x) g_news[x].car
279 #define NVALUE(x) g_news[x].cdr
280 #define NVECTOR(x) g_news[x].cdr
283 #define CONTINUATION(x) g_cells[x].cdr
284 #define HITS(x) g_cells[x].hits
285 #define LENGTH(x) g_cells[x].length
286 #define NAME(x) g_cells[x].name
287 #define STRING(x) g_cells[x].string
288 #define VARIABLE(x) g_cells[x].variable
290 #define CLOSURE(x) g_cells[x].closure
291 #define MACRO(x) g_cells[x].macro
292 #define REF(x) g_cells[x].ref
293 #define VALUE(x) g_cells[x].value
294 #define VECTOR(x) g_cells[x].vector
295 #define FUNCTION(x) g_functions[g_cells[x].function]
296 #define FUNCTION0(x) g_functions[g_cells[x].function].function0
298 #define NLENGTH(x) g_news[x].length
300 #define NVALUE(x) g_news[x].value
301 #define NVECTOR(x) g_news[x].vector
304 #define MAKE_CHAR(n) make_cell__ (TCHAR, 0, n)
305 #define MAKE_CONTINUATION(n) make_cell__ (TCONTINUATION, n, g_stack)
306 #define MAKE_NUMBER(n) make_cell__ (TNUMBER, 0, n)
307 #define MAKE_REF(n) make_cell__ (TREF, n, 0)
308 #define MAKE_STRING(x) make_cell__ (TSTRING, x, 0)
309 #define MAKE_KEYWORD(x) make_cell__ (TKEYWORD, x, 0)
310 #define MAKE_MACRO(name, x) make_cell__ (TMACRO, STRING (name), x)
312 #define CAAR(x) CAR (CAR (x))
313 #define CADR(x) CAR (CDR (x))
314 #define CDAR(x) CDR (CAR (x))
315 #define CDDR(x) CDR (CDR (x))
316 #define CADAR(x) CAR (CDR (CAR (x)))
317 #define CADDR(x) CAR (CDR (CDR (x)))
318 #define CDADAR(x) CAR (CDR (CAR (CDR (x))))
323 assert (g_free + n < ARENA_SIZE);
330 make_cell__ (int type, SCM car, SCM cdr)
340 make_cell_ (SCM type, SCM car, SCM cdr)
342 assert (TYPE (type) == TNUMBER);
343 int t = VALUE (type);
344 if (t == TCHAR || t == TNUMBER)
345 return make_cell__ (t, car ? CAR (car) : 0, cdr ? CDR (cdr) : 0);
346 return make_cell__ (t, car, cdr);
350 make_symbol_ (SCM s) ///((internal))
352 SCM x = make_cell__ (TSYMBOL, s, 0);
353 g_symbols = cons (x, g_symbols);
358 list_of_char_equal_p (SCM a, SCM b) ///((internal))
360 while (a != cell_nil && b != cell_nil && VALUE (CAR (a)) == VALUE (CAR (b)))
362 assert (TYPE (CAR (a)) == TCHAR);
363 assert (TYPE (CAR (b)) == TCHAR);
367 return (a == cell_nil && b == cell_nil) ? cell_t : cell_f;
371 lookup_symbol_ (SCM s)
376 if (list_of_char_equal_p (STRING (CAR (x)), s) == cell_t)
383 x = make_symbol_ (s);
390 return MAKE_NUMBER (TYPE (x));
396 return (TYPE (x) != TCONTINUATION
397 && (TYPE (CAR (x)) == TPAIR // FIXME: this is weird
398 || TYPE (CAR (x)) == TREF
399 || TYPE (CAR (x)) == TSPECIAL
400 || TYPE (CAR (x)) == TSYMBOL
401 || TYPE (CAR (x)) == TSTRING)) ? CAR (x) : MAKE_NUMBER (CAR (x));
407 return (TYPE (x) != TCHAR
408 && TYPE (x) != TNUMBER
409 && (TYPE (CDR (x)) == TPAIR
410 || TYPE (CDR (x)) == TREF
411 || TYPE (CDR (x)) == TSPECIAL
412 || TYPE (CDR (x)) == TSYMBOL
413 || TYPE (CDR (x)) == TSTRING)) ? CDR (x) : MAKE_NUMBER (CDR (x));
419 assert (TYPE (x) == TFUNCTION);
420 return MAKE_NUMBER (FUNCTION (x).arity);
426 return make_cell__ (TPAIR, x, y);
433 if (TYPE (x) != TPAIR)
434 error (cell_symbol_not_a_pair, cons (x, cell_symbol_car));
443 if (TYPE (x) != TPAIR)
444 error (cell_symbol_not_a_pair, cons (x, cell_symbol_cdr));
450 list (SCM x) ///((arity . n))
458 return x == cell_nil ? cell_t : cell_f;
465 || ((TYPE (x) == TKEYWORD && TYPE (y) == TKEYWORD
466 && STRING (x) == STRING (y)))
467 || (TYPE (x) == TCHAR && TYPE (y) == TCHAR
468 && VALUE (x) == VALUE (y))
469 || (TYPE (x) == TNUMBER && TYPE (y) == TNUMBER
470 && VALUE (x) == VALUE (y)))
475 values (SCM x) ///((arity . n))
483 acons (SCM key, SCM value, SCM alist)
485 return cons (cons (key, value), alist);
492 while (x != cell_nil)
495 if (TYPE (x) != TPAIR)
505 return MAKE_NUMBER (length__ (x));
508 SCM apply (SCM, SCM, SCM);
511 error (SCM key, SCM x)
515 if ((throw = assq_ref_env (cell_symbol_throw, r0)) != cell_undefined)
516 return apply (throw, cons (key, cons (x, cell_nil)), r0);
518 display_error_ (key);
526 cstring_to_list (char const* s)
531 p = cons (MAKE_CHAR (s[i]), p);
537 assert_defined (SCM x, SCM e) ///((internal))
539 if (e == cell_undefined)
540 return error (cell_symbol_unbound_variable, x);
545 check_formals (SCM f, SCM formals, SCM args) ///((internal))
547 int flen = (TYPE (formals) == TNUMBER) ? VALUE (formals) : VALUE (length (formals));
548 int alen = VALUE (length (args));
549 if (alen != flen && alen != -1 && flen != -1)
551 char *s = "apply: wrong number of arguments; expected: ";
558 SCM e = MAKE_STRING (cstring_to_list (s));
559 return error (cell_symbol_wrong_number_of_args, cons (e, f));
561 return cell_unspecified;
565 check_apply (SCM f, SCM e) ///((internal))
568 if (f == cell_f || f == cell_t)
572 if (f == cell_unspecified)
573 type = "*unspecified*";
574 if (f == cell_undefined)
575 type = "*undefined*";
576 if (TYPE (f) == TCHAR)
578 if (TYPE (f) == TNUMBER)
580 if (TYPE (f) == TSTRING)
585 char *s = "cannot apply: ";
591 SCM e = MAKE_STRING (cstring_to_list (s));
592 return error (cell_symbol_wrong_type_arg, cons (e, f));
594 return cell_unspecified;
598 gc_push_frame () ///((internal))
600 SCM frame = cons (r1, cons (r2, cons (r3, cons (r0, cell_nil))));
601 g_stack = cons (frame, g_stack);
606 append2 (SCM x, SCM y)
610 if (TYPE (x) != TPAIR)
611 error (cell_symbol_not_a_pair, cons (x, cell_append2));
613 while (x != cell_nil)
615 r = cons (CAR (x), r);
618 return reverse_x_ (r, y);
622 append_reverse (SCM x, SCM y)
626 if (TYPE (x) != TPAIR)
627 error (cell_symbol_not_a_pair, cons (x, cell_append_reverse));
628 while (x != cell_nil)
630 y = cons (CAR (x), y);
637 reverse_x_ (SCM x, SCM t)
639 if (TYPE (x) != TPAIR)
640 error (cell_symbol_not_a_pair, cons (x, cell_reverse_x_));
642 while (x != cell_nil)
653 pairlis (SCM x, SCM y, SCM a)
657 if (TYPE (x) != TPAIR)
658 return cons (cons (x, y), a);
659 return cons (cons (car (x), car (y)),
660 pairlis (cdr (x), cdr (y), a));
666 if ((FUNCTION (fn).arity > 0 || FUNCTION (fn).arity == -1)
667 && x != cell_nil && TYPE (CAR (x)) == TVALUES)
668 x = cons (CADAR (x), CDR (x));
669 if ((FUNCTION (fn).arity > 1 || FUNCTION (fn).arity == -1)
670 && x != cell_nil && TYPE (CDR (x)) == TPAIR && TYPE (CADR (x)) == TVALUES)
671 x = cons (CAR (x), cons (CDADAR (x), CDR (x)));
672 switch (FUNCTION (fn).arity)
674 #if __MESC__ || !_POSIX_SOURCE
675 case 0: return (FUNCTION (fn).function) ();
676 case 1: return ((SCM(*)(SCM))(FUNCTION (fn).function)) (CAR (x));
677 case 2: return ((SCM(*)(SCM,SCM))(FUNCTION (fn).function)) (CAR (x), CADR (x));
678 case 3: return ((SCM(*)(SCM,SCM,SCM))(FUNCTION (fn).function)) (CAR (x), CADR (x), CAR (CDDR (x)));
679 case -1: return ((SCM(*)(SCM))(FUNCTION (fn).function)) (x);
680 default: return ((SCM(*)(SCM))(FUNCTION (fn).function)) (x);
682 case 0: return FUNCTION (fn).function0 ();
683 case 1: return FUNCTION (fn).function1 (CAR (x));
684 case 2: return FUNCTION (fn).function2 (CAR (x), CADR (x));
685 case 3: return FUNCTION (fn).function3 (CAR (x), CADR (x), CAR (CDDR (x)));
686 case -1: return FUNCTION (fn).functionn (x);
690 return cell_unspecified;
702 while (a != cell_nil && v != VALUE (CAAR (a)))
709 while (a != cell_nil && v != STRING (CAAR (a)))
716 while (a != cell_nil && x != CAAR (a))
719 return a != cell_nil ? CAR (a) : cell_f;
723 assq_ref_env (SCM x, SCM a)
727 return cell_undefined;
732 set_car_x (SCM x, SCM e)
734 if (TYPE (x) != TPAIR)
735 error (cell_symbol_not_a_pair, cons (x, cell_set_car_x));
737 return cell_unspecified;
741 set_cdr_x (SCM x, SCM e)
743 if (TYPE (x) != TPAIR)
744 error (cell_symbol_not_a_pair, cons (x, cell_set_cdr_x));
746 return cell_unspecified;
750 set_env_x (SCM x, SCM e, SCM a)
753 if (TYPE (x) == TVARIABLE)
756 p = assert_defined (x, assq (x, a));
757 if (TYPE (p) != TPAIR)
758 error (cell_symbol_not_a_pair, cons (p, x));
759 return set_cdr_x (p, e);
763 call_lambda (SCM e, SCM x, SCM aa, SCM a) ///((internal))
765 SCM cl = cons (cons (cell_closure, x), x);
768 return cell_unspecified;
772 make_closure_ (SCM args, SCM body, SCM a) ///((internal))
774 return make_cell__ (TCLOSURE, cell_f, cons (cons (cell_circular, a), cons (args, body)));
778 make_variable_ (SCM var) ///((internal))
780 return make_cell__ (TVARIABLE, var, 0);
784 lookup_macro_ (SCM x, SCM a) ///((internal))
786 if (TYPE (x) != TSYMBOL)
790 return MACRO (CDR (m));
795 push_cc (SCM p1, SCM p2, SCM a, SCM c) ///((internal))
804 return cell_unspecified;
808 gc_peek_frame () ///((internal))
810 SCM frame = CAR (g_stack);
813 r3 = CAR (CDDR (frame));
814 r0 = CADR (CDDR (frame));
819 gc_pop_frame () ///((internal))
821 SCM frame = gc_peek_frame (g_stack);
822 g_stack = CDR (g_stack);
826 char const* string_to_cstring (SCM s);
829 add_formals (SCM formals, SCM x)
831 while (TYPE (x) == TPAIR)
833 formals = cons (CAR (x), formals);
836 if (TYPE (x) == TSYMBOL)
837 formals = cons (x, formals);
842 formal_p (SCM x, SCM formals) /// ((internal))
844 if (TYPE (formals) == TSYMBOL)
850 while (TYPE (formals) == TPAIR && CAR (formals) != x)
851 formals = CDR (formals);
852 if (TYPE (formals) == TSYMBOL)
854 return TYPE (formals) == TPAIR;
858 expand_variable_ (SCM x, SCM formals, int top_p) ///((internal))
860 while (TYPE (x) == TPAIR)
862 if (TYPE (CAR (x)) == TPAIR)
864 if (CAAR (x) == cell_symbol_lambda)
866 SCM f = CAR (CDAR (x));
867 formals = add_formals (formals, f);
869 else if (CAAR (x) == cell_symbol_define
870 || CAAR (x) == cell_symbol_define_macro)
872 SCM f = CAR (CDAR (x));
873 formals = add_formals (formals, f);
875 if (CAAR (x) != cell_symbol_quote)
876 expand_variable_ (CAR (x), formals, 0);
880 if (CAR (x) == cell_symbol_lambda)
883 formals = add_formals (formals, f);
886 else if (CAR (x) == cell_symbol_define
887 || CAR (x) == cell_symbol_define_macro)
890 if (top_p && TYPE (f) == TPAIR)
892 formals = add_formals (formals, f);
895 else if (CAR (x) == cell_symbol_quote)
896 return cell_unspecified;
897 else if (TYPE (CAR (x)) == TSYMBOL
898 && CAR (x) != cell_begin
899 && CAR (x) != cell_symbol_begin
900 && CAR (x) != cell_symbol_current_module
901 && CAR (x) != cell_symbol_primitive_load
902 && CAR (x) != cell_symbol_if // HMM
903 && !formal_p (CAR (x), formals))
905 SCM v = assq (CAR (x), r0);
907 CAR (x) = make_variable_ (v);
913 return cell_unspecified;
917 expand_variable (SCM x, SCM formals) ///((internal))
919 return expand_variable_ (x, formals, 1);
945 case cell_vm_evlis: goto evlis;
946 case cell_vm_evlis2: goto evlis2;
947 case cell_vm_evlis3: goto evlis3;
948 case cell_vm_apply: goto apply;
949 case cell_vm_apply2: goto apply2;
950 case cell_vm_eval: goto eval;
951 case cell_vm_eval_pmatch_car: goto eval_pmatch_car;
952 case cell_vm_eval_pmatch_cdr: goto eval_pmatch_cdr;
953 case cell_vm_eval_define: goto eval_define;
954 case cell_vm_eval_set_x: goto eval_set_x;
955 case cell_vm_eval_macro_expand_eval: goto eval_macro_expand_eval;
956 case cell_vm_eval_macro_expand_expand: goto eval_macro_expand_expand;
957 case cell_vm_eval_check_func: goto eval_check_func;
958 case cell_vm_eval2: goto eval2;
959 case cell_vm_macro_expand: goto macro_expand;
960 case cell_vm_macro_expand_define: goto macro_expand_define;
961 case cell_vm_macro_expand_define_macro: goto macro_expand_define_macro;
962 case cell_vm_macro_expand_lambda: goto macro_expand_lambda;
963 case cell_vm_macro_expand_set_x: goto macro_expand_set_x;
964 case cell_vm_macro_expand_car: goto macro_expand_car;
965 case cell_vm_macro_expand_cdr: goto macro_expand_cdr;
966 case cell_vm_begin: goto begin;
967 case cell_vm_begin_eval: goto begin_eval;
968 case cell_vm_begin_primitive_load: goto begin_primitive_load;
969 case cell_vm_begin_expand: goto begin_expand;
970 case cell_vm_begin_expand_eval: goto begin_expand_eval;
971 case cell_vm_begin_expand_macro: goto begin_expand_macro;
972 case cell_vm_begin_expand_primitive_load: goto begin_expand_primitive_load;
973 case cell_vm_if: goto vm_if;
974 case cell_vm_if_expr: goto if_expr;
975 case cell_vm_call_with_current_continuation2: goto call_with_current_continuation2;
976 case cell_vm_call_with_values2: goto call_with_values2;
977 case cell_vm_return: goto vm_return;
978 case cell_unspecified: return r1;
986 if (TYPE (r1) != TPAIR)
988 push_cc (CAR (r1), r1, r0, cell_vm_evlis2);
991 push_cc (CDR (r2), r1, r0, cell_vm_evlis3);
998 switch (TYPE (CAR (r1)))
1002 check_formals (CAR (r1), MAKE_NUMBER (FUNCTION (CAR (r1)).arity), CDR (r1));
1003 r1 = call (CAR (r1), CDR (r1)); /// FIXME: move into eval_apply
1008 cl = CLOSURE (CAR (r1));
1010 formals = CADR (cl);
1014 check_formals (CAR (r1), formals, CDR (r1));
1015 p = pairlis (formals, args, aa);
1016 call_lambda (body, p, aa, r0);
1022 g_stack = CONTINUATION (CAR (r1));
1033 push_cc (cons (CADR (r1), CADDR (r1)), r1, r0, cell_vm_return);
1038 push_cc (CADR (r1), r1, CADDR (r1), cell_vm_return);
1041 case cell_call_with_current_continuation:
1044 goto call_with_current_continuation;
1046 default: check_apply (cell_f, CAR (r1));
1051 if (CAR (r1) == cell_symbol_call_with_values)
1054 goto call_with_values;
1056 if (CAR (r1) == cell_symbol_current_module)
1067 case cell_symbol_lambda:
1069 formals = CADR (CAR (r1));
1071 body = CDDR (CAR (r1));
1072 p = pairlis (formals, CDR (r1), r0);
1073 check_formals (r1, formals, args);
1074 call_lambda (body, p, p, r0);
1080 push_cc (CAR (r1), r1, r0, cell_vm_apply2);
1083 check_apply (r1, CAR (r2));
1084 r1 = cons (r1, CDR (r2));
1094 case cell_symbol_pmatch_car:
1096 push_cc (CADR (r1), r1, r0, cell_vm_eval_pmatch_car);
1104 case cell_symbol_pmatch_cdr:
1106 push_cc (CADR (r1), r1, r0, cell_vm_eval_pmatch_cdr);
1114 case cell_symbol_quote:
1121 case cell_symbol_begin:
1123 case cell_symbol_lambda:
1125 r1 = make_closure_ (CADR (r1), CDDR (r1), r0);
1128 case cell_symbol_if:
1133 case cell_symbol_set_x:
1135 push_cc (CAR (CDDR (r1)), r1, r0, cell_vm_eval_set_x);
1138 r1 = set_env_x (CADR (r2), r1, r0);
1141 case cell_vm_macro_expand:
1143 push_cc (CADR (r1), r1, r0, cell_vm_eval_macro_expand_eval);
1145 eval_macro_expand_eval:
1146 push_cc (r1, r2, r0, cell_vm_eval_macro_expand_expand);
1148 eval_macro_expand_expand:
1153 if (TYPE (r1) == TPAIR
1154 && (CAR (r1) == cell_symbol_define
1155 || CAR (r1) == cell_symbol_define_macro))
1157 global_p = CAAR (r0) != cell_closure;
1158 macro_p = CAR (r1) == cell_symbol_define_macro;
1162 if (TYPE (CADR (r1)) == TPAIR)
1166 entry = assq (name, g_macros);
1167 if (entry == cell_f)
1169 entry = cons (name, cell_f);
1170 g_macros = cons (entry, g_macros);
1175 entry = assq (name, r0);
1176 if (entry == cell_f)
1178 entry = cons (name, cell_f);
1179 aa = cons (entry, cell_nil);
1180 set_cdr_x (aa, cdr (r0));
1186 if (TYPE (CADR (r1)) != TPAIR)
1188 push_cc (CAR (CDDR (r1)), r2, cons (cons (CADR (r1), CADR (r1)), r0), cell_vm_eval_define);
1193 p = pairlis (CADR (r1), CADR (r1), r0);
1194 formals = CDR (CADR (r1));
1197 if (macro_p || global_p)
1198 expand_variable (body, formals);
1199 r1 = cons (cell_symbol_lambda, cons (formals, body));
1200 push_cc (r1, r2, p, cell_vm_eval_define);
1205 if (TYPE (CADR (r2)) == TPAIR)
1209 entry = assq (name, g_macros);
1210 r1 = MAKE_MACRO (name, r1);
1211 set_cdr_x (entry, r1);
1215 entry = assq (name, r0);
1216 set_cdr_x (entry, r1);
1220 entry = cons (name, r1);
1221 aa = cons (entry, cell_nil);
1222 set_cdr_x (aa, cdr (r0));
1224 cl = assq (cell_closure, r0);
1227 r1 = cell_unspecified;
1230 push_cc (CAR (r1), r1, r0, cell_vm_eval_check_func);
1234 push_cc (CDR (r2), r2, r0, cell_vm_eval2);
1237 r1 = cons (CAR (r2), r1);
1244 if (r1 == cell_symbol_current_module)
1246 if (r1 == cell_symbol_begin) // FIXME
1251 r1 = assert_defined (r1, assq_ref_env (r1, r0));
1256 r1 = CDR (VARIABLE (r1));
1259 default: goto vm_return;
1267 if (TYPE (r1) != TPAIR || CAR (r1) == cell_symbol_quote)
1270 if (CAR (r1) == cell_symbol_lambda)
1272 push_cc (CDDR (r1), r1, r0, cell_vm_macro_expand_lambda);
1274 macro_expand_lambda:
1280 if (TYPE (r1) == TPAIR
1281 && (macro = lookup_macro_ (CAR (r1), g_macros)) != cell_f)
1283 r1 = cons (macro, CDR (r1));
1284 push_cc (r1, cell_nil, r0, cell_vm_macro_expand);
1288 if (CAR (r1) == cell_symbol_define
1289 || CAR (r1) == cell_symbol_define_macro)
1291 push_cc (CDDR (r1), r1, r0, cell_vm_macro_expand_define);
1293 macro_expand_define:
1296 if (CAR (r1) == cell_symbol_define_macro)
1298 push_cc (r1, r1, r0, cell_vm_macro_expand_define_macro);
1300 macro_expand_define_macro:
1306 if (CAR (r1) == cell_symbol_set_x)
1308 push_cc (CDDR (r1), r1, r0, cell_vm_macro_expand_set_x);
1316 if (TYPE (r1) == TPAIR
1317 && TYPE (CAR (r1)) == TSYMBOL
1318 && CAR (r1) != cell_symbol_begin
1319 && ((macro = assq (cell_symbol_portable_macro_expand, g_macros)) != cell_f)
1320 && ((expanders = assq_ref_env (cell_symbol_sc_expander_alist, r0)) != cell_undefined)
1321 && ((macro = assq (CAR (r1), expanders)) != cell_f))
1323 sc_expand = assq_ref_env (cell_symbol_macro_expand, r0);
1325 if (sc_expand != cell_undefined && sc_expand != cell_f)
1327 r1 = cons (sc_expand, cons (r1, cell_nil));
1332 push_cc (CAR (r1), r1, r0, cell_vm_macro_expand_car);
1338 if (CDR (r1) == cell_nil)
1341 push_cc (CDR (r1), r1, r0, cell_vm_macro_expand_cdr);
1352 x = cell_unspecified;
1353 while (r1 != cell_nil)
1356 if (TYPE (r1) == TPAIR)
1358 if (CAAR (r1) == cell_symbol_primitive_load)
1360 program = cons (CAR (r1), cell_nil);
1361 push_cc (program, r1, r0, cell_vm_begin_primitive_load);
1363 begin_primitive_load:
1369 if (TYPE (r1) == TPAIR && TYPE (CAR (r1)) == TPAIR)
1371 if (CAAR (r1) == cell_symbol_begin)
1372 r1 = append2 (CDAR (r1), CDR (r1));
1374 if (CDR (r1) == cell_nil)
1379 push_cc (CAR (r1), r1, r0, cell_vm_begin_eval);
1390 x = cell_unspecified;
1391 while (r1 != cell_nil)
1395 if (TYPE (r1) == TPAIR)
1397 if (TYPE (CAR (r1)) == TPAIR && CAAR (r1) == cell_symbol_begin)
1398 r1 = append2 (CDAR (r1), CDR (r1));
1399 if (CAAR (r1) == cell_symbol_primitive_load)
1401 push_cc (CADR (CAR (r1)), r1, r0, cell_vm_begin_expand_primitive_load);
1402 goto eval; // FIXME: expand too?!
1403 begin_expand_primitive_load:
1404 if (TYPE (r1) == TNUMBER && VALUE (r1) == 0)
1406 else if (TYPE (r1) == TSTRING)
1407 input = set_current_input_port (open_input_file (r1));
1411 push_cc (input, r2, r0, cell_vm_return);
1412 x = read_input_file_env (r0);
1416 set_current_input_port (input);
1417 r1 = cons (cell_symbol_begin, r1);
1424 push_cc (CAR (r1), r1, r0, cell_vm_begin_expand_macro);
1434 expand_variable (CAR (r1), cell_nil);
1435 push_cc (CAR (r1), r1, r0, cell_vm_begin_expand_eval);
1445 push_cc (CAR (r1), r1, r0, cell_vm_if_expr);
1455 if (CDDR (r1) != cell_nil)
1457 r1 = CAR (CDDR (r1));
1460 r1 = cell_unspecified;
1463 call_with_current_continuation:
1465 x = MAKE_CONTINUATION (g_continuations++);
1467 push_cc (cons (CAR (r1), cons (x, cell_nil)), x, r0, cell_vm_call_with_current_continuation2);
1469 call_with_current_continuation2:
1470 CONTINUATION (r2) = g_stack;
1474 push_cc (cons (CAR (r1), cell_nil), r1, r0, cell_vm_call_with_values2);
1477 if (TYPE (r1) == TVALUES)
1479 r1 = cons (CADR (r2), r1);
1490 apply (SCM f, SCM x, SCM a) ///((internal))
1492 push_cc (cons (f, x), cell_unspecified, r0, cell_unspecified);
1494 return eval_apply ();
1498 mes_g_stack (SCM a) ///((internal))
1504 g_stack = cons (cell_nil, cell_nil);
1508 //
\f Environment setup
1518 gc_init_cells () ///((internal))
1520 g_cells = (struct scm *)malloc (2*ARENA_SIZE*sizeof (struct scm));
1531 gc_init_news () ///((internal))
1533 g_news = g_cells-1 + ARENA_SIZE;
1534 NTYPE (0) = TVECTOR;
1544 mes_symbols () ///((internal))
1550 #include "mes.mes.symbols.i"
1552 #include "mes.symbols.i"
1555 g_symbol_max = g_free++;
1557 for (int i=1; i<g_symbol_max; i++)
1558 g_symbols = cons (i, g_symbols);
1563 #include "mes.mes.symbol-names.i"
1565 #include "mes.symbol-names.i"
1568 a = acons (cell_symbol_mes_version, MAKE_STRING (cstring_to_list (VERSION)), a);
1569 a = acons (cell_symbol_mes_prefix, MAKE_STRING (cstring_to_list (PREFIX)), a);
1571 a = acons (cell_symbol_call_with_values, cell_symbol_call_with_values, a);
1572 a = acons (cell_symbol_current_module, cell_symbol_current_module, a);
1573 a = acons (cell_symbol_call_with_current_continuation, cell_call_with_current_continuation, a);
1577 a = acons (cell_symbol_gnuc, cell_t, a);
1578 a = acons (cell_symbol_mesc, cell_f, a);
1580 a = acons (cell_symbol_gnuc, cell_f, a);
1581 a = acons (cell_symbol_mesc, cell_t, a);
1583 a = acons (cell_closure, a, a);
1589 mes_environment () ///((internal))
1591 SCM a = mes_symbols ();
1592 return mes_g_stack (a);
1596 mes_builtins (SCM a) ///((internal))
1598 #if !__GNUC__ || !_POSIX_SOURCE
1599 #include "mes.mes.i"
1601 // Do not sort: Order of these includes define builtins
1602 #include "posix.mes.i"
1603 #include "math.mes.i"
1604 #include "lib.mes.i"
1605 #include "vector.mes.i"
1607 #include "reader.mes.i"
1609 #include "gc.mes.environment.i"
1610 #include "lib.mes.environment.i"
1611 #include "math.mes.environment.i"
1612 #include "mes.mes.environment.i"
1613 #include "posix.mes.environment.i"
1614 #include "reader.mes.environment.i"
1615 #include "vector.mes.environment.i"
1619 // Do not sort: Order of these includes define builtins
1627 #include "gc.environment.i"
1628 #include "lib.environment.i"
1629 #include "math.environment.i"
1630 #include "mes.environment.i"
1631 #include "posix.environment.i"
1632 #include "reader.environment.i"
1633 #include "vector.environment.i"
1638 fputs ("functions: ", STDERR);
1639 fputs (itoa (g_function), STDERR);
1640 fputs ("\n", STDERR);
1641 for (int i = 0; i < g_function; i++)
1643 fputs ("[", STDERR);
1644 fputs (itoa (i), STDERR);
1645 fputs ("]: ", STDERR);
1646 fputs (g_functions[i].name, STDERR);
1647 fputs ("\n", STDERR);
1649 fputs ("\n", STDERR);
1655 SCM read_input_file_env (SCM);
1658 load_env (SCM a) ///((internal))
1664 if (getenv ("MES_BOOT"))
1665 strcpy (boot, getenv ("MES_BOOT"));
1667 strcpy (boot, "boot-0.scm");
1668 if (getenv ("MES_PREFIX"))
1670 strcpy (buf, getenv ("MES_PREFIX"));
1671 strcpy (buf + strlen (buf), "/module");
1672 strcpy (buf + strlen (buf), "/mes/");
1673 strcpy (buf + strlen (buf), boot);
1674 if (getenv ("MES_DEBUG"))
1676 eputs ("MES_PREFIX reading boot-0:");
1680 g_stdin = open (buf, O_RDONLY);
1684 char const *prefix = MODULEDIR "mes/";
1685 strcpy (buf, prefix);
1686 strcpy (buf + strlen (buf), boot);
1687 if (getenv ("MES_DEBUG"))
1689 eputs ("MODULEDIR reading boot-0:");
1693 g_stdin = open (buf, O_RDONLY);
1697 strcpy (buf, "module/mes/");
1698 strcpy (buf + strlen (buf), boot);
1699 if (getenv ("MES_DEBUG"))
1701 eputs (". reading boot-0:");
1705 g_stdin = open (buf, O_RDONLY);
1709 if (getenv ("MES_DEBUG"))
1711 eputs (". reading boot-0:");
1715 g_stdin = open (boot, O_RDONLY);
1719 eputs ("mes: boot failed: no such file: ");
1726 r0 = mes_builtins (r0);
1727 r2 = read_input_file_env (r0);
1733 bload_env (SCM a) ///((internal))
1736 char *mo = "mes/read-0-32.mo";
1737 g_stdin = open ("module/mes/read-0-32.mo", O_RDONLY);
1738 char *read0 = MODULEDIR "mes/read-0-32.mo";
1739 g_stdin = g_stdin >= 0 ? g_stdin : open (read0, O_RDONLY);
1741 char *mo ="mes/read-0.mo";
1742 g_stdin = open ("module/mes/read-0.mo", O_RDONLY);
1743 g_stdin = g_stdin >= 0 ? g_stdin : open (MODULEDIR "mes/read-0.mo", O_RDONLY);
1748 eputs ("no such file: ");eputs (mo);eputs ("\n");
1751 assert (getchar () == 'M');
1752 assert (getchar () == 'E');
1753 assert (getchar () == 'S');
1756 eputs ("*GOT MES*\n");
1757 g_stack = getchar () << 8;
1758 g_stack += getchar ();
1760 char *p = (char*)g_cells;
1767 g_free = (p-(char*)g_cells) / sizeof (struct scm);
1771 r0 = mes_builtins (r0);
1774 set_env_x (cell_symbol_gnuc, cell_t, r0);
1775 set_env_x (cell_symbol_mesc, cell_f, r0);
1777 set_env_x (cell_symbol_gnuc, cell_f, r0);
1778 set_env_x (cell_symbol_mesc, cell_t, r0);
1783 eputs ("symbols: ");
1785 while (s && s != cell_nil)
1787 display_error_ (CAR (s));
1792 eputs ("functions: ");
1793 eputs (itoa (g_function));
1795 for (int i = 0; i < g_function; i++)
1800 eputs (g_functions[i].name);
1812 main (int argc, char *argv[])
1815 if (p = getenv ("MES_DEBUG"))
1819 eputs (";;; MODULEDIR=");
1823 if (p = getenv ("MES_MAX_ARENA"))
1824 MAX_ARENA_SIZE = atoi (p);
1825 if (p = getenv ("MES_ARENA"))
1826 ARENA_SIZE = atoi (p);
1827 if (p = getenv ("MES_SAFETY"))
1828 GC_SAFETY = atoi (p);
1829 if (argc > 1 && !strcmp (argv[1], "--help"))
1830 return puts ("Usage: mes [--dump|--load] < FILE\n");
1831 if (argc > 1 && !strcmp (argv[1], "--version"))
1833 puts ("Mes ");puts (VERSION);puts ("\n");
1838 r0 = mes_environment ();
1840 SCM program = (argc > 1 && !strcmp (argv[1], "--load"))
1841 ? bload_env (r0) : load_env (r0);
1842 g_tiny = argc > 2 && !strcmp (argv[2], "--tiny");
1843 if (argc > 1 && !strcmp (argv[1], "--dump"))
1847 for (int i=argc-1; i>=0; i--) lst = cons (MAKE_STRING (cstring_to_list (argv[i])), lst);
1848 r0 = acons (cell_symbol_argv, lst, r0); // FIXME
1849 r0 = acons (cell_symbol_argv, lst, r0);
1850 push_cc (r2, cell_unspecified, r0, cell_unspecified);
1854 eputs ("\ngc stats: [");
1855 eputs (itoa (g_free));
1860 eputs ("program: ");
1866 eputs ("symbols: ");
1867 write_error_ (g_symbols);
1870 r3 = cell_vm_begin_expand;
1879 eputs ("\ngc stats: [");
1880 eputs (itoa (g_free));
1884 eputs (itoa (g_free));