mes/define.c
Jan Nieuwenhuizen a0709313ca core: Refactor eval.
* mes.c (eval_env): Rename from builtin_eval, Update callers.  Use switch.
2016-12-12 20:33:50 +01:00

53 lines
1.5 KiB
C

/* -*-comment-start: "//";comment-end:""-*-
* Mes --- Maxwell Equations of Software
* Copyright © 2016 Jan Nieuwenhuizen <janneke@gnu.org>
*
* This file is part of Mes.
*
* Mes 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 3 of the License, or (at
* your option) any later version.
*
* Mes 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.
*
* You should have received a copy of the GNU General Public License
* along with Mes. If not, see <http://www.gnu.org/licenses/>.
*/
#if !BOOT
scm *
define_env (scm *x, scm *a)
{
scm *e;
scm *name = cadr (x);
if (name->type != PAIR)
e = eval_env (caddr (x), cons (cons (cadr (x), cadr (x)), a));
else {
name = car (name);
scm *p = pairlis (cadr (x), cadr (x), a);
cache_invalidate_range (p, a);
e = eval_env (make_lambda (cdadr (x), cddr (x)), p);
}
if (eq_p (car (x), &symbol_define_macro) == &scm_t)
e = make_macro (name, e);
scm *entry = cons (name, e);
scm *aa = cons (entry, &scm_nil);
set_cdr_x (aa, cdr (a));
set_cdr_x (a, aa);
scm *cl = assq (&scm_closure, a);
set_cdr_x (cl, aa);
return entry;
}
#else // BOOT
scm*define_env (scm *x, scm *a){}
#endif
scm *
define_macro (scm *x, scm *a)
{
}