-/* Copyright (C) 1995,1996,1997 Free Software Foundation, Inc.
+/* Copyright (C) 1995,1996,1997,1999,2000,2001 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
* 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. */
+
+/* Software engineering face-lift by Greg J. Badros, 11-Dec-1999,
+ gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */
+
\f
-#include <stdio.h>
-#include "_scm.h"
+#include "libguile/_scm.h"
+
+#include "libguile/objects.h"
+#include "libguile/strings.h"
+#include "libguile/vectors.h"
+#include "libguile/smob.h"
-#include "procs.h"
+#include "libguile/validate.h"
+#include "libguile/procs.h"
\f
/* {Procedures}
*/
+scm_subr_entry *scm_subr_table;
+
+/* libguile contained approx. 700 primitive procedures on 24 Aug 1999. */
+
+int scm_subr_table_size = 0;
+int scm_subr_table_room = 750;
SCM
-scm_make_subr_opt (name, type, fcn, set)
- char *name;
- int type;
- SCM (*fcn) ();
- int set;
+scm_make_subr_opt (const char *name, int type, SCM (*fcn) (), int set)
{
+ SCM symbol;
SCM symcell;
- long tmp;
register SCM z;
- symcell = scm_sysintern (name, SCM_UNDEFINED);
- tmp = ((((SCM_CELLPTR) (SCM_CAR (symcell))) - scm_heap_org) << 8);
- if ((tmp >> 8) != ((SCM_CELLPTR) (SCM_CAR (symcell)) - scm_heap_org))
- tmp = 0;
+ int entry;
+
+ if (scm_subr_table_size == scm_subr_table_room)
+ {
+ scm_sizet new_size = scm_subr_table_room * 3 / 2;
+ void *new_table
+ = scm_must_realloc ((char *) scm_subr_table,
+ sizeof (scm_subr_entry) * scm_subr_table_room,
+ sizeof (scm_subr_entry) * new_size,
+ "scm_subr_table");
+ scm_subr_table = new_table;
+ scm_subr_table_room = new_size;
+ }
+
SCM_NEWCELL (z);
- SCM_SUBRF (z) = fcn;
- SCM_SETCAR (z, tmp + type);
+ if (set)
+ {
+ symcell = scm_sysintern (name, SCM_UNDEFINED);
+ symbol = SCM_CAR (symcell);
+ }
+ else
+ {
+ symcell = SCM_BOOL_F; /* to avoid warning */
+ symbol = scm_str2symbol (name);
+ }
+
+ entry = scm_subr_table_size;
+ scm_subr_table[entry].handle = z;
+ scm_subr_table[entry].name = symbol;
+ scm_subr_table[entry].generic = 0;
+ scm_subr_table[entry].properties = SCM_EOL;
+
+ SCM_SET_SUBRF (z, fcn);
+ SCM_SET_CELL_TYPE (z, (entry << 8) + type);
+ scm_subr_table_size++;
+
if (set)
SCM_SETCDR (symcell, z);
+
return z;
}
-
+/* This function isn't currently used since subrs are never freed. */
+/* *fixme* Need mutex here. */
+void
+scm_free_subr_entry (SCM subr)
+{
+ int entry = SCM_SUBRNUM (subr);
+ /* Move last entry in table to the free position */
+ scm_subr_table[entry] = scm_subr_table[scm_subr_table_size - 1];
+ SCM_SET_SUBRNUM (scm_subr_table[entry].handle, entry);
+ scm_subr_table_size--;
+}
SCM
-scm_make_subr (name, type, fcn)
- char *name;
- int type;
- SCM (*fcn) ();
+scm_make_subr (const char *name, int type, SCM (*fcn) ())
{
return scm_make_subr_opt (name, type, fcn, 1);
}
-#ifdef CCLO
+SCM
+scm_make_subr_with_generic (const char *name, int type, SCM (*fcn) (), SCM *gf)
+{
+ SCM subr = scm_make_subr_opt (name, type, fcn, 1);
+ scm_subr_table[scm_subr_table_size - 1].generic = gf;
+ return subr;
+}
+
+void
+scm_mark_subr_table ()
+{
+ int i;
+ for (i = 0; i < scm_subr_table_size; ++i)
+ {
+ SCM_SETGCMARK (scm_subr_table[i].name);
+ if (scm_subr_table[i].generic && *scm_subr_table[i].generic)
+ scm_gc_mark (*scm_subr_table[i].generic);
+ if (SCM_NIMP (scm_subr_table[i].properties))
+ scm_gc_mark (scm_subr_table[i].properties);
+ }
+}
+
+#ifdef CCLO
SCM
-scm_makcclo (proc, len)
- SCM proc;
- long len;
+scm_makcclo (SCM proc, long len)
{
+ scm_bits_t *base = scm_must_malloc (len * sizeof (scm_bits_t), "compiled-closure");
+ unsigned long i;
SCM s;
+
+ for (i = 0; i < len; ++i)
+ base [i] = SCM_UNPACK (SCM_UNSPECIFIED);
+
SCM_NEWCELL (s);
SCM_DEFER_INTS;
- SCM_SETCHARS (s, scm_must_malloc (len * sizeof (SCM), "compiled-closure"));
- SCM_SETLENGTH (s, len, scm_tc7_cclo);
- while (--len)
- SCM_VELTS (s)[len] = SCM_UNSPECIFIED;
- SCM_CCLO_SUBR (s) = proc;
+ SCM_SET_CCLO_BASE (s, base);
+ SCM_SET_CCLO_LENGTH (s, len);
+ SCM_SET_CCLO_SUBR (s, proc);
SCM_ALLOW_INTS;
return s;
}
/* Undocumented debugging procedure */
#ifdef GUILE_DEBUG
-SCM_PROC (s_make_cclo, "make-cclo", 2, 0, 0, scm_make_cclo);
-
-SCM
-scm_make_cclo (proc, len)
- SCM proc;
- SCM len;
+SCM_DEFINE (scm_make_cclo, "make-cclo", 2, 0, 0,
+ (SCM proc, SCM len),
+ "Create a compiled closure for @var{proc}, which reserves\n"
+ "@var{len} objects for its usage.")
+#define FUNC_NAME s_scm_make_cclo
{
return scm_makcclo (proc, SCM_INUM (len));
}
+#undef FUNC_NAME
#endif
#endif
-SCM_PROC(s_procedure_p, "procedure?", 1, 0, 0, scm_procedure_p);
-
-SCM
-scm_procedure_p (obj)
- SCM obj;
+SCM_DEFINE (scm_procedure_p, "procedure?", 1, 0, 0,
+ (SCM obj),
+ "Return @code{#t} if @var{obj} is a procedure.")
+#define FUNC_NAME s_scm_procedure_p
{
if (SCM_NIMP (obj))
switch (SCM_TYP7 (obj))
{
+ case scm_tcs_cons_gloc:
+ if (!SCM_I_OPERATORP (obj))
+ break;
case scm_tcs_closures:
- case scm_tc7_contin:
case scm_tcs_subrs:
#ifdef CCLO
case scm_tc7_cclo:
#endif
+ case scm_tc7_pws:
return SCM_BOOL_T;
+ case scm_tc7_smob:
+ return SCM_BOOL (SCM_SMOB_DESCRIPTOR (obj).apply);
default:
return SCM_BOOL_F;
}
return SCM_BOOL_F;
}
+#undef FUNC_NAME
-SCM_PROC(s_closure_p, "closure?", 1, 0, 0, scm_closure_p);
-
-SCM
-scm_closure_p (obj)
- SCM obj;
+SCM_DEFINE (scm_closure_p, "closure?", 1, 0, 0,
+ (SCM obj),
+ "Return @code{#t} if @var{obj} is a closure.")
+#define FUNC_NAME s_scm_closure_p
{
- return SCM_NIMP (obj) && SCM_CLOSUREP (obj) ? SCM_BOOL_T : SCM_BOOL_F;
+ return SCM_BOOL (SCM_CLOSUREP (obj));
}
+#undef FUNC_NAME
-SCM_PROC(s_thunk_p, "thunk?", 1, 0, 0, scm_thunk_p);
-
-#ifdef __STDC__
-SCM
-scm_thunk_p (SCM obj)
-#else
-SCM
-scm_thunk_p (obj)
- SCM obj;
+SCM_DEFINE (scm_thunk_p, "thunk?", 1, 0, 0,
+ (SCM obj),
+ "Return @code{#t} if @var{obj} is a thunk.")
+#define FUNC_NAME s_scm_thunk_p
+{
+ if (SCM_NIMP (obj))
+ {
+ again:
+ switch (SCM_TYP7 (obj))
+ {
+ case scm_tcs_closures:
+ return SCM_BOOL (!SCM_CONSP (SCM_CLOSURE_FORMALS (obj)));
+ case scm_tc7_subr_0:
+ case scm_tc7_subr_1o:
+ case scm_tc7_lsubr:
+ case scm_tc7_rpsubr:
+ case scm_tc7_asubr:
+#ifdef CCLO
+ case scm_tc7_cclo:
#endif
+ return SCM_BOOL_T;
+ case scm_tc7_pws:
+ obj = SCM_PROCEDURE (obj);
+ goto again;
+ default:
+ ;
+ }
+ }
+ return SCM_BOOL_F;
+}
+#undef FUNC_NAME
+
+/* Only used internally. */
+int
+scm_subr_p (SCM obj)
{
if (SCM_NIMP (obj))
switch (SCM_TYP7 (obj))
{
- case scm_tcs_closures:
- if (SCM_NULLP (SCM_CAR (SCM_CODE (obj))))
- return SCM_BOOL_T;
- case scm_tc7_subr_0:
- case scm_tc7_subr_1o:
- case scm_tc7_lsubr:
- case scm_tc7_rpsubr:
- case scm_tc7_asubr:
-#ifdef CCLO
- case scm_tc7_cclo:
-#endif
- return SCM_BOOL_T;
+ case scm_tcs_subrs:
+ return 1;
default:
;
}
- return SCM_BOOL_F;
+ return 0;
}
+SCM_DEFINE (scm_procedure_documentation, "procedure-documentation", 1, 0, 0,
+ (SCM proc),
+ "Return the documentation string associated with @code{proc}. By\n"
+ "convention, if a procedure contains more than one expression and the\n"
+ "first expression is a string constant, that string is assumed to contain\n"
+ "documentation for that procedure.")
+#define FUNC_NAME s_scm_procedure_documentation
+{
+ SCM code;
+ SCM_ASSERT (SCM_EQ_P (scm_procedure_p (proc), SCM_BOOL_T) && SCM_NIMP (proc),
+ proc, SCM_ARG1, FUNC_NAME);
+ switch (SCM_TYP7 (proc))
+ {
+ case scm_tcs_closures:
+ code = SCM_CDR (SCM_CODE (proc));
+ if (SCM_IMP (SCM_CDR (code)))
+ return SCM_BOOL_F;
+ code = SCM_CAR (code);
+ if (SCM_IMP (code))
+ return SCM_BOOL_F;
+ if (SCM_STRINGP (code))
+ return code;
+ default:
+ return SCM_BOOL_F;
+/*
+ case scm_tcs_subrs:
+#ifdef CCLO
+ case scm_tc7_cclo:
+#endif
+*/
+ }
+}
+#undef FUNC_NAME
-void
-scm_init_iprocs(subra, type)
- scm_iproc *subra;
- int type;
+/* Procedure-with-setter
+ */
+
+SCM_DEFINE (scm_procedure_with_setter_p, "procedure-with-setter?", 1, 0, 0,
+ (SCM obj),
+ "Return @code{#t} if @var{obj} is a procedure with an\n"
+ "associated setter procedure.")
+#define FUNC_NAME s_scm_procedure_with_setter_p
{
- for(;subra->scm_string; subra++)
- scm_make_subr(subra->scm_string,
- type,
- subra->cproc);
+ return SCM_BOOL(SCM_PROCEDURE_WITH_SETTER_P (obj));
}
+#undef FUNC_NAME
+SCM_DEFINE (scm_make_procedure_with_setter, "make-procedure-with-setter", 2, 0, 0,
+ (SCM procedure, SCM setter),
+ "Create a new procedure which behaves like @var{procedure}, but\n"
+ "with the associated setter @var{setter}.")
+#define FUNC_NAME s_scm_make_procedure_with_setter
+{
+ SCM z;
+ SCM_VALIDATE_PROC (1, procedure);
+ SCM_VALIDATE_PROC (2, setter);
+ SCM_NEWCELL2 (z);
+ SCM_ENTER_A_SECTION;
+ SCM_SET_CELL_OBJECT_1 (z, procedure);
+ SCM_SET_CELL_OBJECT_2 (z, setter);
+ SCM_SET_CELL_TYPE (z, scm_tc7_pws);
+ SCM_EXIT_A_SECTION;
+ return z;
+}
+#undef FUNC_NAME
+SCM_DEFINE (scm_procedure, "procedure", 1, 0, 0,
+ (SCM proc),
+ "Return the procedure of @var{proc}, which must be either a\n"
+ "procedure with setter, or an operator struct.")
+#define FUNC_NAME s_scm_procedure
+{
+ SCM_VALIDATE_NIM (1, proc);
+ if (SCM_PROCEDURE_WITH_SETTER_P (proc))
+ return SCM_PROCEDURE (proc);
+ else if (SCM_STRUCTP (proc))
+ {
+ SCM_ASSERT (SCM_I_OPERATORP (proc), proc, SCM_ARG1, FUNC_NAME);
+ return proc;
+ }
+ SCM_WRONG_TYPE_ARG (1, proc);
+ return SCM_BOOL_F; /* not reached */
+}
+#undef FUNC_NAME
+SCM_GPROC (s_setter, "setter", 1, 0, 0, scm_setter, g_setter);
+SCM
+scm_setter (SCM proc)
+{
+ SCM_GASSERT1 (SCM_NIMP (proc), g_setter, proc, SCM_ARG1, s_setter);
+ if (SCM_PROCEDURE_WITH_SETTER_P (proc))
+ return SCM_SETTER (proc);
+ else if (SCM_STRUCTP (proc))
+ {
+ SCM setter;
+ SCM_GASSERT1 (SCM_I_OPERATORP (proc),
+ g_setter, proc, SCM_ARG1, s_setter);
+ setter = (SCM_I_ENTITYP (proc)
+ ? SCM_ENTITY_SETTER (proc)
+ : SCM_OPERATOR_SETTER (proc));
+ if (SCM_NIMP (setter))
+ return setter;
+ /* fall through */
+ }
+ SCM_WTA_DISPATCH_1 (g_setter, proc, SCM_ARG1, s_setter);
+ return SCM_BOOL_F; /* not reached */
+}
+
+
+void
+scm_init_subr_table ()
+{
+ scm_subr_table
+ = ((scm_subr_entry *)
+ scm_must_malloc (sizeof (scm_subr_entry) * scm_subr_table_room,
+ "scm_subr_table"));
+}
void
scm_init_procs ()
{
-#include "procs.x"
+#ifndef SCM_MAGIC_SNARFER
+#include "libguile/procs.x"
+#endif
}
+/*
+ Local Variables:
+ c-file-style: "gnu"
+ End:
+*/
HCoop / bpt / guile.git / blobdiff