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Diffstat (limited to 'libguile/gsubr.c')
-rw-r--r-- | libguile/gsubr.c | 193 |
1 files changed, 0 insertions, 193 deletions
diff --git a/libguile/gsubr.c b/libguile/gsubr.c deleted file mode 100644 index b69a6c497..000000000 --- a/libguile/gsubr.c +++ /dev/null @@ -1,193 +0,0 @@ -/* Copyright (C) 1995,1996 Free Software Foundation, Inc. - * - * This program 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 2, or (at your option) - * any later version. - * - * This program 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 this software; see the file COPYING. If not, write to - * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. - * - * As a special exception, the Free Software Foundation gives permission - * for additional uses of the text contained in its release of GUILE. - * - * The exception is that, if you link the GUILE library with other files - * to produce an executable, this does not by itself cause the - * resulting executable to be covered by the GNU General Public License. - * Your use of that executable is in no way restricted on account of - * linking the GUILE library code into it. - * - * This exception does not however invalidate any other reasons why - * the executable file might be covered by the GNU General Public License. - * - * This exception applies only to the code released by the - * Free Software Foundation under the name GUILE. If you copy - * code from other Free Software Foundation releases into a copy of - * GUILE, as the General Public License permits, the exception does - * not apply to the code that you add in this way. To avoid misleading - * anyone as to the status of such modified files, you must delete - * this exception notice from them. - * - * If you write modifications of your own for GUILE, it is your choice - * whether to permit this exception to apply to your modifications. - * If you do not wish that, delete this exception notice. - */ - - -#include <stdio.h> -#include "_scm.h" -#include "genio.h" -#include "procprop.h" - -#include "gsubr.h" - -/* - * gsubr.c - * Provide `gsubrs' -- subrs taking a prescribed number of required, optional, - * and rest arguments. - */ - -#include "gsubr.h" - -#define GSUBR_TEST 1 - -#define GSUBR_MAKTYPE(req, opt, rst) ((req)|((opt)<<4)|((rst)<<8)) -#define GSUBR_REQ(x) ((int)(x)&0xf) -#define GSUBR_OPT(x) (((int)(x)&0xf0)>>4) -#define GSUBR_REST(x) ((int)(x)>>8) - -#define GSUBR_MAX 10 -#define GSUBR_TYPE(cclo) (SCM_VELTS(cclo)[1]) -#define GSUBR_PROC(cclo) (SCM_VELTS(cclo)[2]) - -SCM scm_i_name; -static SCM f_gsubr_apply; - -SCM -scm_make_gsubr(name, req, opt, rst, fcn) - char *name; - int req; - int opt; - int rst; - SCM (*fcn)(); -{ - switch GSUBR_MAKTYPE(req, opt, rst) { - case GSUBR_MAKTYPE(0, 0, 0): return scm_make_subr(name, scm_tc7_subr_0, fcn); - case GSUBR_MAKTYPE(1, 0, 0): return scm_make_subr(name, scm_tc7_subr_1, fcn); - case GSUBR_MAKTYPE(0, 1, 0): return scm_make_subr(name, scm_tc7_subr_1o, fcn); - case GSUBR_MAKTYPE(1, 1, 0): return scm_make_subr(name, scm_tc7_subr_2o, fcn); - case GSUBR_MAKTYPE(2, 0, 0): return scm_make_subr(name, scm_tc7_subr_2, fcn); - case GSUBR_MAKTYPE(3, 0, 0): return scm_make_subr(name, scm_tc7_subr_3, fcn); - case GSUBR_MAKTYPE(0, 0, 1): return scm_make_subr(name, scm_tc7_lsubr, fcn); - case GSUBR_MAKTYPE(2, 0, 1): return scm_make_subr(name, scm_tc7_lsubr_2, fcn); - default: - { - SCM symcell = scm_sysintern(name, SCM_UNDEFINED); - SCM z, cclo = scm_makcclo(f_gsubr_apply, 3L); - long tmp = ((((SCM_CELLPTR)(SCM_CAR(symcell)))-scm_heap_org)<<8); - if (GSUBR_MAX < req + opt + rst) { - fputs("ERROR in scm_make_gsubr: too many args\n", stderr); - exit (1); - } - if ((tmp>>8) != ((SCM_CELLPTR)(SCM_CAR(symcell))-scm_heap_org)) - tmp = 0; - SCM_NEWCELL(z); - SCM_SUBRF(z) = fcn; - SCM_SETCAR (z, tmp + scm_tc7_subr_0); - GSUBR_PROC(cclo) = z; - GSUBR_TYPE(cclo) = SCM_MAKINUM(GSUBR_MAKTYPE(req, opt, rst)); - SCM_SETCDR (symcell, cclo); -#ifdef DEBUG_EXTENSIONS - if (SCM_REC_PROCNAMES_P) - scm_set_procedure_property_x (cclo, scm_i_name, SCM_CAR (symcell)); -#endif - return cclo; - } - } -} - - -SCM_PROC(s_gsubr_apply, "gsubr-apply", 0, 0, 1, scm_gsubr_apply); - -SCM -scm_gsubr_apply(args) - SCM args; -{ - SCM self = SCM_CAR(args); - SCM (*fcn)() = SCM_SUBRF(GSUBR_PROC(self)); - SCM v[10]; /* must agree with greatest supported arity */ - int typ = SCM_INUM(GSUBR_TYPE(self)); - int i, n = GSUBR_REQ(typ) + GSUBR_OPT(typ) + GSUBR_REST(typ); - args = SCM_CDR(args); - for (i = 0; i < GSUBR_REQ(typ); i++) { -#ifndef RECKLESS - if (SCM_IMP(args)) - scm_wrong_num_args (SCM_SNAME(GSUBR_PROC(self))); -#endif - v[i] = SCM_CAR(args); - args = SCM_CDR(args); - } - for (; i < GSUBR_REQ(typ) + GSUBR_OPT(typ); i++) { - if (SCM_NIMP(args)) { - v[i] = SCM_CAR(args); - args = SCM_CDR(args); - } - else - v[i] = SCM_UNDEFINED; - } - if (GSUBR_REST(typ)) - v[i] = args; - switch (n) { - default: scm_wta(self, "internal programming error", s_gsubr_apply); - case 2: return (*fcn)(v[0], v[1]); - case 3: return (*fcn)(v[0], v[1], v[2]); - case 4: return (*fcn)(v[0], v[1], v[2], v[3]); - case 5: return (*fcn)(v[0], v[1], v[2], v[3], v[4]); - case 6: return (*fcn)(v[0], v[1], v[2], v[3], v[4], v[5]); - case 7: return (*fcn)(v[0], v[1], v[2], v[3], v[4], v[5], v[6]); - case 8: return (*fcn)(v[0], v[1], v[2], v[3], v[4], v[5], v[6], v[7]); - case 9: return (*fcn)(v[0], v[1], v[2], v[3], v[4], v[5], v[6], v[7], v[8]); - case 10: return (*fcn)(v[0], v[1], v[2], v[3], v[4], v[5], v[6], v[7], v[8], v[9]); - } -} - - -#ifdef GSUBR_TEST -/* A silly example, taking 2 required args, 1 optional, and - a scm_list of rest args - */ -SCM -gsubr_21l(req1, req2, opt, rst) - SCM req1, req2, opt, rst; -{ - scm_gen_puts (scm_regular_string, "gsubr-2-1-l:\n req1: ", scm_cur_outp); - scm_display(req1, scm_cur_outp); - scm_gen_puts (scm_regular_string, "\n req2: ", scm_cur_outp); - scm_display(req2, scm_cur_outp); - scm_gen_puts (scm_regular_string, "\n opt: ", scm_cur_outp); - scm_display(opt, scm_cur_outp); - scm_gen_puts (scm_regular_string, "\n rest: ", scm_cur_outp); - scm_display(rst, scm_cur_outp); - scm_newline(scm_cur_outp); - return SCM_UNSPECIFIED; -} -#endif - - - -void -scm_init_gsubr() -{ - f_gsubr_apply = scm_make_subr(s_gsubr_apply, scm_tc7_lsubr, scm_gsubr_apply); - scm_i_name = SCM_CAR (scm_sysintern ("name", SCM_UNDEFINED)); - scm_permanent_object (scm_i_name); -#ifdef GSUBR_TEST - scm_make_gsubr("gsubr-2-1-l", 2, 1, 1, gsubr_21l); /* example */ -#endif -} |