1 /* Copyright (C) 1995, 1996, 1997, 1999 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. */
42 /* Software engineering face-lift by Greg J. Badros, 11-Dec-1999,
43 gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */
52 #include "scm_validate.h"
60 scm_subr_entry
*scm_subr_table
;
62 /* libguile contained approx. 700 primitive procedures on 24 Aug 1999. */
64 int scm_subr_table_size
= 0;
65 int scm_subr_table_room
= 750;
68 scm_make_subr_opt (const char *name
, int type
, SCM (*fcn
) (), int set
)
74 if (scm_subr_table_size
== scm_subr_table_room
)
76 scm_sizet new_size
= scm_subr_table_room
* 3 / 2;
78 = scm_must_realloc ((char *) scm_subr_table
,
79 sizeof (scm_subr_entry
) * scm_subr_table_room
,
80 sizeof (scm_subr_entry
) * new_size
,
82 scm_subr_table
= new_table
;
83 scm_subr_table_room
= new_size
;
87 symcell
= set
? scm_sysintern0 (name
) : scm_intern0 (name
);
89 entry
= scm_subr_table_size
;
90 scm_subr_table
[entry
].handle
= z
;
91 scm_subr_table
[entry
].name
= SCM_CAR (symcell
);
92 scm_subr_table
[entry
].generic
= 0;
93 scm_subr_table
[entry
].properties
= SCM_EOL
;
94 scm_subr_table
[entry
].documentation
= SCM_BOOL_F
;
97 SCM_SETCAR (z
, (entry
<< 8) + type
);
98 scm_subr_table_size
++;
101 SCM_SETCDR (symcell
, z
);
106 /* This function isn't currently used since subrs are never freed. */
107 /* *fixme* Need mutex here. */
109 scm_free_subr_entry (SCM subr
)
111 int entry
= SCM_SUBRNUM (subr
);
112 /* Move last entry in table to the free position */
113 scm_subr_table
[entry
] = scm_subr_table
[scm_subr_table_size
- 1];
114 SCM_SET_SUBRNUM (scm_subr_table
[entry
].handle
, entry
);
115 scm_subr_table_size
--;
119 scm_make_subr (const char *name
, int type
, SCM (*fcn
) ())
121 return scm_make_subr_opt (name
, type
, fcn
, 1);
125 scm_make_subr_with_generic (const char *name
, int type
, SCM (*fcn
) (), SCM
*gf
)
127 SCM subr
= scm_make_subr_opt (name
, type
, fcn
, 1);
128 scm_subr_table
[scm_subr_table_size
- 1].generic
= gf
;
133 scm_mark_subr_table ()
136 for (i
= 0; i
< scm_subr_table_size
; ++i
)
138 SCM_SETGC8MARK (scm_subr_table
[i
].name
);
139 if (scm_subr_table
[i
].generic
&& *scm_subr_table
[i
].generic
)
140 scm_gc_mark (*scm_subr_table
[i
].generic
);
141 if (SCM_NIMP (scm_subr_table
[i
].properties
))
142 scm_gc_mark (scm_subr_table
[i
].properties
);
143 if (SCM_NIMP (scm_subr_table
[i
].documentation
))
144 scm_gc_mark (scm_subr_table
[i
].documentation
);
151 scm_makcclo (SCM proc
, long len
)
156 SCM_SETCHARS (s
, scm_must_malloc (len
* sizeof (SCM
), "compiled-closure"));
157 SCM_SETLENGTH (s
, len
, scm_tc7_cclo
);
159 SCM_VELTS (s
)[len
] = SCM_UNSPECIFIED
;
160 SCM_CCLO_SUBR (s
) = proc
;
165 /* Undocumented debugging procedure */
167 SCM_DEFINE (scm_make_cclo
, "make-cclo", 2, 0, 0,
170 #define FUNC_NAME s_scm_make_cclo
172 return scm_makcclo (proc
, SCM_INUM (len
));
180 SCM_DEFINE(scm_procedure_p
, "procedure?", 1, 0, 0,
183 #define FUNC_NAME s_scm_procedure_p
186 switch (SCM_TYP7 (obj
))
188 case scm_tcs_cons_gloc
:
189 if (!SCM_I_OPERATORP (obj
))
191 case scm_tcs_closures
:
206 SCM_DEFINE(scm_closure_p
, "closure?", 1, 0, 0,
209 #define FUNC_NAME s_scm_closure_p
211 return SCM_BOOL(SCM_CLOSUREP (obj
));
215 SCM_DEFINE(scm_thunk_p
, "thunk?", 1, 0, 0,
218 #define FUNC_NAME s_scm_thunk_p
223 switch (SCM_TYP7 (obj
))
225 case scm_tcs_closures
:
226 if (SCM_NULLP (SCM_CAR (SCM_CODE (obj
))))
229 case scm_tc7_subr_1o
:
238 obj
= SCM_PROCEDURE (obj
);
248 /* Only used internally. */
253 switch (SCM_TYP7 (obj
))
263 SCM_DEFINE(scm_procedure_documentation
, "procedure-documentation", 1, 0, 0,
265 "Return the documentation string associated with @code{proc}. By
266 convention, if a procedure contains more than one expression and the
267 first expression is a string constant, that string is assumed to contain
268 documentation for that procedure.")
269 #define FUNC_NAME s_scm_procedure_documentation
272 SCM_ASSERT (SCM_BOOL_T
== scm_procedure_p (proc
) && SCM_NIMP (proc
) && SCM_TYP7 (proc
) != scm_tc7_contin
,
273 proc
, SCM_ARG1
, FUNC_NAME
);
274 switch (SCM_TYP7 (proc
))
276 case scm_tcs_closures
:
277 code
= SCM_CDR (SCM_CODE (proc
));
278 if (SCM_IMP (SCM_CDR (code
)))
280 code
= SCM_CAR (code
);
283 if (SCM_STRINGP (code
))
298 /* Procedure-with-setter
301 SCM_DEFINE (scm_procedure_with_setter_p
, "procedure-with-setter?", 1, 0, 0,
304 #define FUNC_NAME s_scm_procedure_with_setter_p
306 return SCM_BOOL(SCM_PROCEDURE_WITH_SETTER_P (obj
));
310 SCM_DEFINE (scm_make_procedure_with_setter
, "make-procedure-with-setter", 2, 0, 0,
311 (SCM procedure
, SCM setter
),
313 #define FUNC_NAME s_scm_make_procedure_with_setter
316 SCM_VALIDATE_PROC(1,procedure
);
317 SCM_VALIDATE_PROC(2,setter
);
320 SCM_SETCDR (z
, scm_cons (procedure
, setter
));
321 SCM_SETCAR (z
, scm_tc7_pws
);
327 SCM_DEFINE (scm_procedure
, "procedure", 1, 0, 0,
330 #define FUNC_NAME s_scm_procedure
332 SCM_VALIDATE_NIM (1,proc
);
333 if (SCM_PROCEDURE_WITH_SETTER_P (proc
))
334 return SCM_PROCEDURE (proc
);
335 else if (SCM_STRUCTP (proc
))
337 SCM_ASSERT (SCM_I_OPERATORP (proc
), proc
, SCM_ARG1
, FUNC_NAME
);
340 SCM_WRONG_TYPE_ARG (1, proc
);
341 return 0; /* not reached */
345 SCM_GPROC (s_setter
, "setter", 1, 0, 0, scm_setter
, g_setter
);
348 scm_setter (SCM proc
)
350 SCM_GASSERT1 (SCM_NIMP (proc
), g_setter
, proc
, SCM_ARG1
, s_setter
);
351 if (SCM_PROCEDURE_WITH_SETTER_P (proc
))
352 return SCM_SETTER (proc
);
353 else if (SCM_STRUCTP (proc
))
356 SCM_GASSERT1 (SCM_I_OPERATORP (proc
),
357 g_setter
, proc
, SCM_ARG1
, s_setter
);
358 setter
= (SCM_I_ENTITYP (proc
)
359 ? SCM_ENTITY_SETTER (proc
)
360 : SCM_OPERATOR_SETTER (proc
));
361 if (SCM_NIMP (setter
))
365 SCM_WTA_DISPATCH_1 (g_setter
, proc
, SCM_ARG1
, s_setter
);
371 scm_init_iprocs(const scm_iproc
*subra
, int type
)
373 for(;subra
->scm_string
; subra
++)
374 scm_make_subr(subra
->scm_string
,
381 scm_init_subr_table ()
384 = ((scm_subr_entry
*)
385 scm_must_malloc (sizeof (scm_subr_entry
) * scm_subr_table_room
,