1 /* Copyright (C) 1995,1996,1997 Free Software Foundation, Inc.
3 * This program is free software; you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License as published by
5 * the Free Software Foundation; either version 2, or (at your option)
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this software; see the file COPYING. If not, write to
15 * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
16 * Boston, MA 02111-1307 USA
18 * As a special exception, the Free Software Foundation gives permission
19 * for additional uses of the text contained in its release of GUILE.
21 * The exception is that, if you link the GUILE library with other files
22 * to produce an executable, this does not by itself cause the
23 * resulting executable to be covered by the GNU General Public License.
24 * Your use of that executable is in no way restricted on account of
25 * linking the GUILE library code into it.
27 * This exception does not however invalidate any other reasons why
28 * the executable file might be covered by the GNU General Public License.
30 * This exception applies only to the code released by the
31 * Free Software Foundation under the name GUILE. If you copy
32 * code from other Free Software Foundation releases into a copy of
33 * GUILE, as the General Public License permits, the exception does
34 * not apply to the code that you add in this way. To avoid misleading
35 * anyone as to the status of such modified files, you must delete
36 * this exception notice from them.
38 * If you write modifications of your own for GUILE, it is your choice
39 * whether to permit this exception to apply to your modifications.
40 * If you do not wish that, delete this exception notice. */
57 scm_make_subr_opt (name
, type
, fcn
, set
)
66 symcell
= scm_sysintern (name
, SCM_UNDEFINED
);
67 tmp
= ((((SCM_CELLPTR
) (SCM_CAR (symcell
))) - scm_heap_org
) << 8);
68 if ((tmp
>> 8) != ((SCM_CELLPTR
) (SCM_CAR (symcell
)) - scm_heap_org
))
72 SCM_SETCAR (z
, tmp
+ type
);
74 SCM_SETCDR (symcell
, z
);
81 scm_make_subr (name
, type
, fcn
)
86 return scm_make_subr_opt (name
, type
, fcn
, 1);
92 scm_makcclo (proc
, len
)
99 SCM_SETCHARS (s
, scm_must_malloc (len
* sizeof (SCM
), "compiled-closure"));
100 SCM_SETLENGTH (s
, len
, scm_tc7_cclo
);
102 SCM_VELTS (s
)[len
] = SCM_UNSPECIFIED
;
103 SCM_CCLO_SUBR (s
) = proc
;
108 /* Undocumented debugging procedure */
110 SCM_PROC (s_make_cclo
, "make-cclo", 2, 0, 0, scm_make_cclo
);
113 scm_make_cclo (proc
, len
)
117 return scm_makcclo (proc
, SCM_INUM (len
));
124 SCM_PROC(s_procedure_p
, "procedure?", 1, 0, 0, scm_procedure_p
);
127 scm_procedure_p (obj
)
131 switch (SCM_TYP7 (obj
))
133 case scm_tcs_cons_gloc
:
134 if (!SCM_I_OPERATORP (obj
))
136 case scm_tcs_closures
:
149 SCM_PROC(s_closure_p
, "closure?", 1, 0, 0, scm_closure_p
);
155 return SCM_NIMP (obj
) && SCM_CLOSUREP (obj
) ? SCM_BOOL_T
: SCM_BOOL_F
;
158 SCM_PROC(s_thunk_p
, "thunk?", 1, 0, 0, scm_thunk_p
);
162 scm_thunk_p (SCM obj
)
170 switch (SCM_TYP7 (obj
))
172 case scm_tcs_closures
:
173 if (SCM_NULLP (SCM_CAR (SCM_CODE (obj
))))
176 case scm_tc7_subr_1o
:
190 SCM_PROC(s_procedure_documentation
, "procedure-documentation", 1, 0, 0, scm_procedure_documentation
);
193 scm_procedure_documentation (proc
)
197 SCM_ASSERT (SCM_BOOL_T
== scm_procedure_p (proc
) && SCM_NIMP (proc
) && SCM_TYP7 (proc
) != scm_tc7_contin
,
198 proc
, SCM_ARG1
, s_procedure_documentation
);
199 switch (SCM_TYP7 (proc
))
201 case scm_tcs_closures
:
202 code
= SCM_CDR (SCM_CODE (proc
));
203 if (SCM_IMP (SCM_CDR (code
)))
205 code
= SCM_CAR (code
);
208 if (SCM_STRINGP (code
))
224 scm_init_iprocs(subra
, type
)
225 const scm_iproc
*subra
;
228 for(;subra
->scm_string
; subra
++)
229 scm_make_subr(subra
->scm_string
,