-/* Copyright (C) 1995,1996,1999,2000,2001, 2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 1995,1996,1999,2000,2001, 2003, 2004, 2006, 2008 Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 3 of
+ * the License, or (at your option) any later version.
*
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301 USA
*/
* libguile. See the comments in objects.h.
*/
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
#include "libguile/_scm.h"
#include "libguile/struct.h"
#include "libguile/ports.h"
#include "libguile/strings.h"
#include "libguile/vectors.h"
+#include "libguile/programs.h"
+#include "libguile/vm.h"
#include "libguile/validate.h"
#include "libguile/objects.h"
+#include "libguile/goops.h"
+
\f
SCM scm_metaclass_standard;
SCM scm_metaclass_operator;
-/* These variables are filled in by the object system when loaded. */
-SCM scm_class_boolean, scm_class_char, scm_class_pair;
-SCM scm_class_procedure, scm_class_string, scm_class_symbol;
-SCM scm_class_procedure_with_setter, scm_class_primitive_generic;
-SCM scm_class_vector, scm_class_null;
-SCM scm_class_integer, scm_class_real, scm_class_complex, scm_class_fraction;
-SCM scm_class_unknown;
-
-SCM *scm_port_class = 0;
-SCM *scm_smob_class = 0;
-
-SCM scm_no_applicable_method;
-
-/* This function is used for efficient type dispatch. */
-SCM_DEFINE (scm_class_of, "class-of", 1, 0, 0,
- (SCM x),
- "Return the class of @var{x}.")
-#define FUNC_NAME s_scm_class_of
-{
- switch (SCM_ITAG3 (x))
- {
- case scm_tc3_int_1:
- case scm_tc3_int_2:
- return scm_class_integer;
-
- case scm_tc3_imm24:
- if (SCM_CHARP (x))
- return scm_class_char;
- else if (scm_is_bool (x))
- return scm_class_boolean;
- else if (scm_is_null (x))
- return scm_class_null;
- else
- return scm_class_unknown;
-
- case scm_tc3_cons:
- switch (SCM_TYP7 (x))
- {
- case scm_tcs_cons_nimcar:
- return scm_class_pair;
- case scm_tcs_closures:
- return scm_class_procedure;
- case scm_tc7_symbol:
- return scm_class_symbol;
- case scm_tc7_vector:
- case scm_tc7_wvect:
- return scm_class_vector;
- case scm_tc7_string:
- return scm_class_string;
- case scm_tc7_number:
- switch SCM_TYP16 (x) {
- case scm_tc16_big:
- return scm_class_integer;
- case scm_tc16_real:
- return scm_class_real;
- case scm_tc16_complex:
- return scm_class_complex;
- case scm_tc16_fraction:
- return scm_class_fraction;
- }
- case scm_tc7_asubr:
- case scm_tc7_subr_0:
- case scm_tc7_subr_1:
- case scm_tc7_dsubr:
- case scm_tc7_cxr:
- case scm_tc7_subr_3:
- case scm_tc7_subr_2:
- case scm_tc7_rpsubr:
- case scm_tc7_subr_1o:
- case scm_tc7_subr_2o:
- case scm_tc7_lsubr_2:
- case scm_tc7_lsubr:
- if (SCM_SUBR_GENERIC (x) && *SCM_SUBR_GENERIC (x))
- return scm_class_primitive_generic;
- else
- return scm_class_procedure;
- case scm_tc7_cclo:
- return scm_class_procedure;
- case scm_tc7_pws:
- return scm_class_procedure_with_setter;
-
- case scm_tc7_smob:
- {
- scm_t_bits type = SCM_TYP16 (x);
- if (type != scm_tc16_port_with_ps)
- return scm_smob_class[SCM_TC2SMOBNUM (type)];
- x = SCM_PORT_WITH_PS_PORT (x);
- /* fall through to ports */
- }
- case scm_tc7_port:
- return scm_port_class[(SCM_WRTNG & SCM_CELL_WORD_0 (x)
- ? (SCM_RDNG & SCM_CELL_WORD_0 (x)
- ? SCM_INOUT_PCLASS_INDEX | SCM_PTOBNUM (x)
- : SCM_OUT_PCLASS_INDEX | SCM_PTOBNUM (x))
- : SCM_IN_PCLASS_INDEX | SCM_PTOBNUM (x))];
- case scm_tcs_struct:
- if (SCM_OBJ_CLASS_FLAGS (x) & SCM_CLASSF_GOOPS_VALID)
- return SCM_CLASS_OF (x);
- else if (SCM_OBJ_CLASS_FLAGS (x) & SCM_CLASSF_GOOPS)
- {
- /* Goops object */
- if (! scm_is_false (SCM_OBJ_CLASS_REDEF (x)))
- scm_change_object_class (x,
- SCM_CLASS_OF (x), /* old */
- SCM_OBJ_CLASS_REDEF (x)); /* new */
- return SCM_CLASS_OF (x);
- }
- else
- {
- /* ordinary struct */
- SCM handle = scm_struct_create_handle (SCM_STRUCT_VTABLE (x));
- if (scm_is_true (SCM_STRUCT_TABLE_CLASS (SCM_CDR (handle))))
- return SCM_STRUCT_TABLE_CLASS (SCM_CDR (handle));
- else
- {
- SCM name = SCM_STRUCT_TABLE_NAME (SCM_CDR (handle));
- SCM class = scm_make_extended_class (scm_is_true (name)
- ? scm_i_symbol_chars (name)
- : 0,
- SCM_I_OPERATORP (x));
- SCM_SET_STRUCT_TABLE_CLASS (SCM_CDR (handle), class);
- return class;
- }
- }
- default:
- if (scm_is_pair (x))
- return scm_class_pair;
- else
- return scm_class_unknown;
- }
-
- case scm_tc3_struct:
- case scm_tc3_tc7_1:
- case scm_tc3_tc7_2:
- case scm_tc3_closure:
- /* Never reached */
- break;
- }
- return scm_class_unknown;
-}
-#undef FUNC_NAME
-
/* The cache argument for scm_mcache_lookup_cmethod has one of two possible
* formats:
*
n = scm_to_ulong (SCM_CAR (z)); /* maximum number of specializers */
methods = SCM_CADR (z);
- if (SCM_VECTORP (methods))
+ if (scm_is_simple_vector (methods))
{
/* cache format #1: prepare for linear search */
mask = -1;
i = 0;
- end = SCM_VECTOR_LENGTH (methods);
+ end = SCM_SIMPLE_VECTOR_LENGTH (methods);
}
else
{
do
{
long j = n;
- z = SCM_VELTS (methods)[i];
+ z = SCM_SIMPLE_VECTOR_REF (methods, i);
ls = args; /* list of arguments */
if (!scm_is_null (ls))
do
z = SCM_CDR (z);
}
while (j-- && !scm_is_null (ls));
- /* Fewer arguments than specifiers => CAR != ENV */
- if (scm_is_null (SCM_CAR (z)) || scm_is_pair (SCM_CAR (z)))
+ /* Fewer arguments than specifiers => CAR != CLASS or `no-method' */
+ if (!scm_is_pair (z)
+ || (!SCM_CLASSP (SCM_CAR (z)) && !scm_is_symbol (SCM_CAR (z))))
return z;
next_method:
i = (i + 1) & mask;
scm_apply_generic (SCM gf, SCM args)
{
SCM cmethod = scm_mcache_compute_cmethod (SCM_ENTITY_PROCEDURE (gf), args);
- return scm_eval_body (SCM_CDR (SCM_CMETHOD_CODE (cmethod)),
- SCM_EXTEND_ENV (SCM_CAR (SCM_CMETHOD_CODE (cmethod)),
- args,
- SCM_CMETHOD_ENV (cmethod)));
+ if (SCM_PROGRAM_P (cmethod))
+ return scm_vm_apply (scm_the_vm (), cmethod, args);
+ else if (scm_is_pair (cmethod))
+ return scm_eval_body (SCM_CDR (SCM_CMETHOD_CODE (cmethod)),
+ SCM_EXTEND_ENV (SCM_CAR (SCM_CMETHOD_CODE (cmethod)),
+ args,
+ SCM_CMETHOD_ENV (cmethod)));
+ else
+ return scm_apply (cmethod, args, SCM_EOL);
}
SCM
scm_c_define ("<operator-class>", ot);
scm_metaclass_operator = ot;
SCM_SET_CLASS_FLAGS (et, SCM_CLASSF_OPERATOR | SCM_CLASSF_ENTITY);
- SCM_SET_CLASS_DESTRUCTOR (et, scm_struct_free_entity);
scm_c_define ("<entity>", et);
#include "libguile/objects.x"
HCoop / bpt / guile.git / blobdiff