1 /* Copyright (C) 1995, 1996, 1997, 1999, 2000 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 */
48 #include "libguile/_scm.h"
50 #include "libguile/objects.h"
51 #include "libguile/strings.h"
52 #include "libguile/vectors.h"
54 #include "libguile/validate.h"
55 #include "libguile/procs.h"
62 scm_subr_entry
*scm_subr_table
;
64 /* libguile contained approx. 700 primitive procedures on 24 Aug 1999. */
66 int scm_subr_table_size
= 0;
67 int scm_subr_table_room
= 750;
70 scm_make_subr_opt (const char *name
, int type
, SCM (*fcn
) (), int set
)
76 if (scm_subr_table_size
== scm_subr_table_room
)
78 scm_sizet new_size
= scm_subr_table_room
* 3 / 2;
80 = scm_must_realloc ((char *) scm_subr_table
,
81 sizeof (scm_subr_entry
) * scm_subr_table_room
,
82 sizeof (scm_subr_entry
) * new_size
,
84 scm_subr_table
= new_table
;
85 scm_subr_table_room
= new_size
;
89 symcell
= set
? scm_sysintern0 (name
) : scm_intern0 (name
);
91 entry
= scm_subr_table_size
;
92 scm_subr_table
[entry
].handle
= z
;
93 scm_subr_table
[entry
].name
= SCM_CAR (symcell
);
94 scm_subr_table
[entry
].generic
= 0;
95 scm_subr_table
[entry
].properties
= SCM_EOL
;
96 scm_subr_table
[entry
].documentation
= SCM_BOOL_F
;
98 SCM_SET_SUBRF (z
, fcn
);
99 SCM_SET_CELL_TYPE (z
, (entry
<< 8) + type
);
100 scm_subr_table_size
++;
103 SCM_SETCDR (symcell
, z
);
108 /* This function isn't currently used since subrs are never freed. */
109 /* *fixme* Need mutex here. */
111 scm_free_subr_entry (SCM subr
)
113 int entry
= SCM_SUBRNUM (subr
);
114 /* Move last entry in table to the free position */
115 scm_subr_table
[entry
] = scm_subr_table
[scm_subr_table_size
- 1];
116 SCM_SET_SUBRNUM (scm_subr_table
[entry
].handle
, entry
);
117 scm_subr_table_size
--;
121 scm_make_subr (const char *name
, int type
, SCM (*fcn
) ())
123 return scm_make_subr_opt (name
, type
, fcn
, 1);
127 scm_make_subr_with_generic (const char *name
, int type
, SCM (*fcn
) (), SCM
*gf
)
129 SCM subr
= scm_make_subr_opt (name
, type
, fcn
, 1);
130 scm_subr_table
[scm_subr_table_size
- 1].generic
= gf
;
135 scm_mark_subr_table ()
138 for (i
= 0; i
< scm_subr_table_size
; ++i
)
140 SCM_SETGC8MARK (scm_subr_table
[i
].name
);
141 if (scm_subr_table
[i
].generic
&& *scm_subr_table
[i
].generic
)
142 scm_gc_mark (*scm_subr_table
[i
].generic
);
143 if (SCM_NIMP (scm_subr_table
[i
].properties
))
144 scm_gc_mark (scm_subr_table
[i
].properties
);
145 if (SCM_NIMP (scm_subr_table
[i
].documentation
))
146 scm_gc_mark (scm_subr_table
[i
].documentation
);
153 scm_makcclo (SCM proc
, long len
)
158 SCM_SETCHARS (s
, scm_must_malloc (len
* sizeof (SCM
), "compiled-closure"));
159 SCM_SETLENGTH (s
, len
, scm_tc7_cclo
);
161 SCM_VELTS (s
)[len
] = SCM_UNSPECIFIED
;
162 SCM_CCLO_SUBR (s
) = proc
;
167 /* Undocumented debugging procedure */
169 SCM_DEFINE (scm_make_cclo
, "make-cclo", 2, 0, 0,
172 #define FUNC_NAME s_scm_make_cclo
174 return scm_makcclo (proc
, SCM_INUM (len
));
182 SCM_DEFINE (scm_procedure_p
, "procedure?", 1, 0, 0,
185 #define FUNC_NAME s_scm_procedure_p
188 switch (SCM_TYP7 (obj
))
190 case scm_tcs_cons_gloc
:
191 if (!SCM_I_OPERATORP (obj
))
193 case scm_tcs_closures
:
208 SCM_DEFINE (scm_closure_p
, "closure?", 1, 0, 0,
211 #define FUNC_NAME s_scm_closure_p
213 return SCM_BOOL(SCM_CLOSUREP (obj
));
217 SCM_DEFINE (scm_thunk_p
, "thunk?", 1, 0, 0,
220 #define FUNC_NAME s_scm_thunk_p
225 switch (SCM_TYP7 (obj
))
227 case scm_tcs_closures
:
228 if (SCM_NULLP (SCM_CAR (SCM_CODE (obj
))))
231 case scm_tc7_subr_1o
:
240 obj
= SCM_PROCEDURE (obj
);
250 /* Only used internally. */
255 switch (SCM_TYP7 (obj
))
265 SCM_DEFINE (scm_procedure_documentation
, "procedure-documentation", 1, 0, 0,
267 "Return the documentation string associated with @code{proc}. By\n"
268 "convention, if a procedure contains more than one expression and the\n"
269 "first expression is a string constant, that string is assumed to contain\n"
270 "documentation for that procedure.")
271 #define FUNC_NAME s_scm_procedure_documentation
274 SCM_ASSERT (SCM_EQ_P (scm_procedure_p (proc
), SCM_BOOL_T
)
275 && SCM_NIMP (proc
) && SCM_TYP7 (proc
) != scm_tc7_contin
,
276 proc
, SCM_ARG1
, FUNC_NAME
);
277 switch (SCM_TYP7 (proc
))
279 case scm_tcs_closures
:
280 code
= SCM_CDR (SCM_CODE (proc
));
281 if (SCM_IMP (SCM_CDR (code
)))
283 code
= SCM_CAR (code
);
286 if (SCM_STRINGP (code
))
301 /* Procedure-with-setter
304 SCM_DEFINE (scm_procedure_with_setter_p
, "procedure-with-setter?", 1, 0, 0,
307 #define FUNC_NAME s_scm_procedure_with_setter_p
309 return SCM_BOOL(SCM_PROCEDURE_WITH_SETTER_P (obj
));
313 SCM_DEFINE (scm_make_procedure_with_setter
, "make-procedure-with-setter", 2, 0, 0,
314 (SCM procedure
, SCM setter
),
316 #define FUNC_NAME s_scm_make_procedure_with_setter
319 SCM_VALIDATE_PROC (1, procedure
);
320 SCM_VALIDATE_PROC (2, setter
);
323 SCM_SET_CELL_OBJECT_1 (z
, procedure
);
324 SCM_SET_CELL_OBJECT_2 (z
, setter
);
325 SCM_SET_CELL_TYPE (z
, scm_tc7_pws
);
331 SCM_DEFINE (scm_procedure
, "procedure", 1, 0, 0,
334 #define FUNC_NAME s_scm_procedure
336 SCM_VALIDATE_NIM (1, proc
);
337 if (SCM_PROCEDURE_WITH_SETTER_P (proc
))
338 return SCM_PROCEDURE (proc
);
339 else if (SCM_STRUCTP (proc
))
341 SCM_ASSERT (SCM_I_OPERATORP (proc
), proc
, SCM_ARG1
, FUNC_NAME
);
344 SCM_WRONG_TYPE_ARG (1, proc
);
345 return SCM_BOOL_F
; /* not reached */
349 SCM_GPROC (s_setter
, "setter", 1, 0, 0, scm_setter
, g_setter
);
352 scm_setter (SCM proc
)
354 SCM_GASSERT1 (SCM_NIMP (proc
), g_setter
, proc
, SCM_ARG1
, s_setter
);
355 if (SCM_PROCEDURE_WITH_SETTER_P (proc
))
356 return SCM_SETTER (proc
);
357 else if (SCM_STRUCTP (proc
))
360 SCM_GASSERT1 (SCM_I_OPERATORP (proc
),
361 g_setter
, proc
, SCM_ARG1
, s_setter
);
362 setter
= (SCM_I_ENTITYP (proc
)
363 ? SCM_ENTITY_SETTER (proc
)
364 : SCM_OPERATOR_SETTER (proc
));
365 if (SCM_NIMP (setter
))
369 SCM_WTA_DISPATCH_1 (g_setter
, proc
, SCM_ARG1
, s_setter
);
370 return SCM_BOOL_F
; /* not reached */
375 scm_init_subr_table ()
378 = ((scm_subr_entry
*)
379 scm_must_malloc (sizeof (scm_subr_entry
) * scm_subr_table_room
,
386 #include "libguile/procs.x"