-/* Copyright (C) 1998,1999,2000,2001,2002,2003,2004,2008
+/* Copyright (C) 1998,1999,2000,2001,2002,2003,2004,2008,2009
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301 USA
*/
\f
#include "libguile/keywords.h"
#include "libguile/macros.h"
#include "libguile/modules.h"
-#include "libguile/objects.h"
#include "libguile/ports.h"
#include "libguile/procprop.h"
+#include "libguile/programs.h"
#include "libguile/random.h"
#include "libguile/root.h"
#include "libguile/smob.h"
#include "libguile/strports.h"
#include "libguile/vectors.h"
#include "libguile/weaks.h"
+#include "libguile/vm.h"
#include "libguile/validate.h"
#include "libguile/goops.h"
#define SPEC_OF(x) SCM_SLOT (x, scm_si_specializers)
-#define DEFVAR(v, val) \
-{ scm_eval (scm_list_3 (scm_sym_define_public, (v), (val)), \
- scm_module_goops); }
-/* Temporary hack until we get the new module system */
-/*fixme* Should optimize by keeping track of the variable object itself */
-#define GETVAR(v) (SCM_VARIABLE_REF (scm_call_2 (scm_goops_lookup_closure, \
- (v), SCM_BOOL_F)))
-
-/* Fixme: Should use already interned symbols */
-
-#define CALL_GF1(name, a) (scm_call_1 (GETVAR (scm_from_locale_symbol (name)), \
- a))
-#define CALL_GF2(name, a, b) (scm_call_2 (GETVAR (scm_from_locale_symbol (name)), \
- a, b))
-#define CALL_GF3(name, a, b, c) (scm_call_3 (GETVAR (scm_from_locale_symbol (name)), \
- a, b, c))
-#define CALL_GF4(name, a, b, c, d) (scm_call_4 (GETVAR (scm_from_locale_symbol (name)), \
- a, b, c, d))
+#define SCM_CMETHOD_CODE(cmethod) SCM_CDR (cmethod)
+#define SCM_CMETHOD_FORMALS(cmethod) SCM_CAR (SCM_CMETHOD_CODE (cmethod))
+#define SCM_CMETHOD_BODY(cmethod) SCM_CDR (SCM_CMETHOD_CODE (cmethod))
+#define SCM_CMETHOD_ENV(cmethod) SCM_CAR (cmethod)
+
+/* Port classes */
+#define SCM_IN_PCLASS_INDEX 0
+#define SCM_OUT_PCLASS_INDEX SCM_I_MAX_PORT_TYPE_COUNT
+#define SCM_INOUT_PCLASS_INDEX (2 * SCM_I_MAX_PORT_TYPE_COUNT)
+
+/* this file is a mess. in theory, though, we shouldn't have many SCM references
+ -- most of the references should be to vars. */
+
+static SCM var_slot_unbound = SCM_BOOL_F;
+static SCM var_slot_missing = SCM_BOOL_F;
+static SCM var_compute_cpl = SCM_BOOL_F;
+static SCM var_no_applicable_method = SCM_BOOL_F;
+static SCM var_memoize_method_x = SCM_BOOL_F;
+static SCM var_change_class = SCM_BOOL_F;
+
+SCM_SYMBOL (sym_slot_unbound, "slot-unbound");
+SCM_SYMBOL (sym_slot_missing, "slot-missing");
+SCM_SYMBOL (sym_compute_cpl, "compute-cpl");
+SCM_SYMBOL (sym_no_applicable_method, "no-applicable-method");
+SCM_SYMBOL (sym_memoize_method_x, "memoize-method!");
+SCM_SYMBOL (sym_change_class, "change-class");
+
+SCM_VARIABLE (scm_var_make_extended_generic, "make-extended-generic");
+
+
+/* FIXME, exports should come from the scm file only */
+#define DEFVAR(v, val) \
+ { scm_module_define (scm_module_goops, (v), (val)); \
+ scm_module_export (scm_module_goops, scm_list_1 ((v))); \
+ }
+
/* Class redefinition protocol:
h1.
*/
-/* The following definition is located in libguile/objects.h:
-#define SCM_OBJ_CLASS_REDEF(x) (SCM_STRUCT_VTABLE_DATA(x)[scm_si_redefined])
-*/
-
#define TEST_CHANGE_CLASS(obj, class) \
{ \
class = SCM_CLASS_OF (obj); \
static int goops_loaded_p = 0;
static scm_t_rstate *goops_rstate;
-static SCM scm_goops_lookup_closure;
-
/* 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_unknown;
SCM scm_class_top, scm_class_object, scm_class_class;
SCM scm_class_applicable;
-SCM scm_class_entity, scm_class_entity_with_setter;
+SCM scm_class_applicable_struct, scm_class_applicable_struct_with_setter;
SCM scm_class_generic, scm_class_generic_with_setter;
SCM scm_class_accessor;
SCM scm_class_extended_generic, scm_class_extended_generic_with_setter;
SCM scm_class_extended_accessor;
SCM scm_class_method;
-SCM scm_class_simple_method, scm_class_accessor_method;
+SCM scm_class_accessor_method;
SCM scm_class_procedure_class;
-SCM scm_class_operator_class, scm_class_operator_with_setter_class;
-SCM scm_class_entity_class;
+SCM scm_class_applicable_struct_class;
SCM scm_class_number, scm_class_list;
SCM scm_class_keyword;
SCM scm_class_port, scm_class_input_output_port;
SCM scm_class_input_port, scm_class_output_port;
-SCM scm_class_foreign_class, scm_class_foreign_object;
SCM scm_class_foreign_slot;
SCM scm_class_self, scm_class_protected;
-SCM scm_class_opaque, scm_class_read_only;
-SCM scm_class_protected_opaque, scm_class_protected_read_only;
+SCM scm_class_hidden, scm_class_opaque, scm_class_read_only;
+SCM scm_class_protected_hidden, scm_class_protected_opaque, scm_class_protected_read_only;
SCM scm_class_scm;
SCM scm_class_int, scm_class_float, scm_class_double;
-SCM *scm_port_class = 0;
-SCM *scm_smob_class = 0;
+/* Port classes. Allocate 3 times the maximum number of port types so that
+ input ports, output ports, and in/out ports can be stored at different
+ offsets. See `SCM_IN_PCLASS_INDEX' et al. */
+SCM scm_port_class[3 * SCM_I_MAX_PORT_TYPE_COUNT];
+
+/* SMOB classes. */
+SCM scm_smob_class[SCM_I_MAX_SMOB_TYPE_COUNT];
SCM scm_no_applicable_method;
static SCM scm_assert_bound (SCM value, SCM obj);
static SCM scm_at_assert_bound_ref (SCM obj, SCM index);
static SCM scm_sys_goops_loaded (void);
+static SCM scm_make_extended_class_from_symbol (SCM type_name_sym,
+ int applicablep);
/* This function is used for efficient type dispatch. */
SCM_DEFINE (scm_class_of, "class-of", 1, 0, 0,
return scm_class_primitive_generic;
else
return scm_class_procedure;
- case scm_tc7_cclo:
+ case scm_tc7_gsubr:
+ case scm_tc7_program:
return scm_class_procedure;
case scm_tc7_pws:
return scm_class_procedure_with_setter;
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 class, name;
+
+ name = SCM_STRUCT_TABLE_NAME (SCM_CDR (handle));
+ if (!scm_is_symbol (name))
+ name = scm_string_to_symbol (scm_nullstr);
+
+ class =
+ scm_make_extended_class_from_symbol (name,
+ SCM_STRUCT_APPLICABLE_P (x));
SCM_SET_STRUCT_TABLE_CLASS (SCM_CDR (handle), class);
return class;
}
compute_cpl (SCM class)
{
if (goops_loaded_p)
- return CALL_GF1 ("compute-cpl", class);
+ return scm_call_1 (SCM_VARIABLE_REF (var_compute_cpl), class);
else
{
SCM supers = SCM_SLOT (class, scm_si_direct_supers);
{
slot_value = get_slot_value (class, obj, SCM_CAR (get_n_set));
if (SCM_GOOPS_UNBOUNDP (slot_value))
- {
- SCM env = SCM_EXTEND_ENV (SCM_EOL, SCM_EOL, SCM_ENV (tmp));
- set_slot_value (class,
- obj,
- SCM_CAR (get_n_set),
- scm_eval_body (SCM_CLOSURE_BODY (tmp), env));
- }
+ set_slot_value (class,
+ obj,
+ SCM_CAR (get_n_set),
+ scm_call_0 (tmp));
}
}
}
a = 'o';
else if (SCM_SUBCLASSP (type, scm_class_read_only))
a = 'r';
+ else if (SCM_SUBCLASSP (type, scm_class_hidden))
+ a = 'h';
else
a = 'w';
}
inconsistent:
SCM_MISC_ERROR ("inconsistent getters-n-setters", SCM_EOL);
}
- SCM_SET_SLOT (class, scm_si_layout, scm_string_to_symbol (layout));
+ SCM_SET_VTABLE_LAYOUT (class, scm_string_to_symbol (layout));
return SCM_UNSPECIFIED;
}
#undef FUNC_NAME
"")
#define FUNC_NAME s_scm_sys_inherit_magic_x
{
- SCM ls = dsupers;
- long flags = 0;
SCM_VALIDATE_INSTANCE (1, class);
- while (!scm_is_null (ls))
- {
- SCM_ASSERT (scm_is_pair (ls)
- && SCM_INSTANCEP (SCM_CAR (ls)),
- dsupers,
- SCM_ARG2,
- FUNC_NAME);
- flags |= SCM_CLASS_FLAGS (SCM_CAR (ls));
- ls = SCM_CDR (ls);
- }
- flags &= SCM_CLASSF_INHERIT;
- if (flags & SCM_CLASSF_ENTITY)
- SCM_SET_CLASS_DESTRUCTOR (class, scm_struct_free_entity);
- else
- {
- long n = SCM_I_INUM (SCM_SLOT (class, scm_si_nfields));
-#if 0
- /*
- * We could avoid calling scm_gc_malloc in the allocation code
- * (in which case the following two lines are needed). Instead
- * we make 0-slot instances non-light, so that the light case
- * can be handled without special cases.
- */
- if (n == 0)
- SCM_SET_CLASS_DESTRUCTOR (class, scm_struct_free_0);
-#endif
- if (n > 0 && !(flags & SCM_CLASSF_METACLASS))
- {
- /* NOTE: The following depends on scm_struct_i_size. */
- flags |= SCM_STRUCTF_LIGHT + n * sizeof (SCM); /* use light representation */
- SCM_SET_CLASS_DESTRUCTOR (class, scm_struct_free_light);
- }
- }
- SCM_SET_CLASS_FLAGS (class, flags);
+ scm_i_struct_inherit_vtable_magic (SCM_CLASS_OF (class), class);
+ SCM_SET_CLASS_FLAGS (class, SCM_CLASSF_GOOPS_OR_VALID);
prep_hashsets (class);
{
unsigned int i;
- for (i = 0; i < 7; ++i)
+ for (i = 0; i < 8; ++i)
SCM_SET_HASHSET (class, i, scm_c_uniform32 (goops_rstate));
}
nfields = scm_from_int (scm_ilength (slots));
g_n_s = compute_getters_n_setters (slots);
- SCM_SET_SLOT (z, scm_si_name, name);
+ SCM_SET_SLOT (z, scm_vtable_index_name, name);
SCM_SET_SLOT (z, scm_si_direct_slots, dslots);
SCM_SET_SLOT (z, scm_si_direct_subclasses, SCM_EOL);
SCM_SET_SLOT (z, scm_si_direct_methods, SCM_EOL);
scm_si_direct_subclasses)));
}
- /* Support for the underlying structs: */
- SCM_SET_CLASS_FLAGS (z, (class == scm_class_entity_class
- ? (SCM_CLASSF_GOOPS_OR_VALID
- | SCM_CLASSF_OPERATOR
- | SCM_CLASSF_ENTITY)
- : class == scm_class_operator_class
- ? SCM_CLASSF_GOOPS_OR_VALID | SCM_CLASSF_OPERATOR
- : SCM_CLASSF_GOOPS_OR_VALID));
return z;
}
scm_basic_make_class (SCM class, SCM name, SCM dsupers, SCM dslots)
{
SCM z = scm_basic_basic_make_class (class, name, dsupers, dslots);
- scm_sys_inherit_magic_x (z, dsupers);
scm_sys_prep_layout_x (z);
+ scm_sys_inherit_magic_x (z, dsupers);
return z;
}
/******************************************************************************/
SCM_SYMBOL (sym_layout, "layout");
-SCM_SYMBOL (sym_vcell, "vcell");
-SCM_SYMBOL (sym_vtable, "vtable");
+SCM_SYMBOL (sym_flags, "flags");
+SCM_SYMBOL (sym_self, "%self");
+SCM_SYMBOL (sym_instance_finalizer, "instance-finalizer");
+SCM_SYMBOL (sym_reserved_0, "%reserved-0");
+SCM_SYMBOL (sym_reserved_1, "%reserved-1");
SCM_SYMBOL (sym_print, "print");
SCM_SYMBOL (sym_procedure, "procedure");
SCM_SYMBOL (sym_setter, "setter");
static SCM
build_class_class_slots ()
{
+ /* has to be kept in sync with SCM_VTABLE_BASE_LAYOUT and
+ SCM_CLASS_CLASS_LAYOUT */
return scm_list_n (
scm_list_3 (sym_layout, k_class, scm_class_protected_read_only),
- scm_list_3 (sym_vtable, k_class, scm_class_self),
+ scm_list_3 (sym_flags, k_class, scm_class_hidden),
+ scm_list_3 (sym_self, k_class, scm_class_self),
+ scm_list_3 (sym_instance_finalizer, k_class, scm_class_hidden),
scm_list_1 (sym_print),
- scm_list_3 (sym_procedure, k_class, scm_class_protected_opaque),
- scm_list_3 (sym_setter, k_class, scm_class_protected_opaque),
+ scm_list_3 (sym_name, k_class, scm_class_protected_hidden),
+ scm_list_3 (sym_reserved_0, k_class, scm_class_hidden),
+ scm_list_3 (sym_reserved_1, k_class, scm_class_hidden),
scm_list_1 (sym_redefined),
scm_list_3 (sym_h0, k_class, scm_class_int),
scm_list_3 (sym_h1, k_class, scm_class_int),
scm_list_3 (sym_h5, k_class, scm_class_int),
scm_list_3 (sym_h6, k_class, scm_class_int),
scm_list_3 (sym_h7, k_class, scm_class_int),
- scm_list_1 (sym_name),
scm_list_1 (sym_direct_supers),
scm_list_1 (sym_direct_slots),
scm_list_1 (sym_direct_subclasses),
{
/* SCM slots_of_class = build_class_class_slots (); */
- /**** <scm_class_class> ****/
- SCM cs = scm_from_locale_string (SCM_CLASS_CLASS_LAYOUT
- + 2 * scm_vtable_offset_user);
+ /**** <class> ****/
+ SCM cs = scm_from_locale_string (SCM_CLASS_CLASS_LAYOUT);
SCM name = scm_from_locale_symbol ("<class>");
scm_class_class = scm_permanent_object (scm_make_vtable_vtable (cs,
SCM_INUM0,
SCM_SET_CLASS_FLAGS (scm_class_class, (SCM_CLASSF_GOOPS_OR_VALID
| SCM_CLASSF_METACLASS));
- SCM_SET_SLOT (scm_class_class, scm_si_name, name);
+ SCM_SET_SLOT (scm_class_class, scm_vtable_index_name, name);
SCM_SET_SLOT (scm_class_class, scm_si_direct_supers, SCM_EOL); /* will be changed */
/* SCM_SET_SLOT (scm_class_class, scm_si_direct_slots, slots_of_class); */
SCM_SET_SLOT (scm_class_class, scm_si_direct_subclasses, SCM_EOL);
DEFVAR(name, scm_class_class);
- /**** <scm_class_top> ****/
+ /**** <top> ****/
name = scm_from_locale_symbol ("<top>");
scm_class_top = scm_permanent_object (scm_basic_make_class (scm_class_class,
name,
DEFVAR(name, scm_class_top);
- /**** <scm_class_object> ****/
+ /**** <object> ****/
name = scm_from_locale_symbol ("<object>");
scm_class_object = scm_permanent_object (scm_basic_make_class (scm_class_class,
name,
}
#undef FUNC_NAME
-SCM_DEFINE (scm_accessor_method_slot_definition, "accessor-method-slot-definition", 1, 0, 0,
- (SCM obj),
- "Return the slot definition of the accessor @var{obj}.")
-#define FUNC_NAME s_scm_accessor_method_slot_definition
-{
- SCM_VALIDATE_ACCESSOR (1, obj);
- return scm_slot_ref (obj, scm_from_locale_symbol ("slot-definition"));
-}
-#undef FUNC_NAME
-
-SCM_DEFINE (scm_sys_tag_body, "%tag-body", 1, 0, 0,
- (SCM body),
- "Internal GOOPS magic---don't use this function!")
-#define FUNC_NAME s_scm_sys_tag_body
-{
- return scm_cons (SCM_IM_LAMBDA, body);
-}
-#undef FUNC_NAME
-
/******************************************************************************
*
* S l o t a c c e s s
#define FUNC_NAME s_scm_assert_bound
{
if (SCM_GOOPS_UNBOUNDP (value))
- return CALL_GF1 ("slot-unbound", obj);
+ return scm_call_1 (SCM_VARIABLE_REF (var_slot_unbound), obj);
return value;
}
#undef FUNC_NAME
{
SCM value = SCM_SLOT (obj, scm_to_int (index));
if (SCM_GOOPS_UNBOUNDP (value))
- return CALL_GF1 ("slot-unbound", obj);
+ return scm_call_1 (SCM_VARIABLE_REF (var_slot_unbound), obj);
return value;
}
#undef FUNC_NAME
#undef FUNC_NAME
-SCM_SYNTAX (s_atslot_ref, "@slot-ref", scm_i_makbimacro, scm_m_atslot_ref);
-SCM_SYNTAX (s_atslot_set_x, "@slot-set!", scm_i_makbimacro, scm_m_atslot_set_x);
-
-
+\f
/** Utilities **/
/* In the future, this function will return the effective slot
code = SCM_CAR (access);
if (!SCM_CLOSUREP (code))
- return SCM_SUBRF (code) (obj);
+ return scm_call_1 (code, obj);
env = SCM_EXTEND_ENV (SCM_CLOSURE_FORMALS (code),
scm_list_1 (obj),
SCM_ENV (code));
if (scm_is_true (slotdef))
return get_slot_value (class, obj, slotdef);
else
- return CALL_GF3 ("slot-missing", class, obj, slot_name);
+ return scm_call_3 (SCM_VARIABLE_REF (var_slot_missing), class, obj, slot_name);
}
static SCM
code = SCM_CADR (access);
if (!SCM_CLOSUREP (code))
- SCM_SUBRF (code) (obj, value);
+ scm_call_2 (code, obj, value);
else
{
env = SCM_EXTEND_ENV (SCM_CLOSURE_FORMALS (code),
if (scm_is_true (slotdef))
return set_slot_value (class, obj, slotdef, value);
else
- return CALL_GF4 ("slot-missing", class, obj, slot_name, value);
+ return scm_call_4 (SCM_VARIABLE_REF (var_slot_missing), class, obj, slot_name, value);
}
static SCM
res = get_slot_value_using_name (class, obj, slot_name);
if (SCM_GOOPS_UNBOUNDP (res))
- return CALL_GF3 ("slot-unbound", class, obj, slot_name);
+ return scm_call_3 (SCM_VARIABLE_REF (var_slot_unbound), class, obj, slot_name);
return res;
}
#undef FUNC_NAME
res = get_slot_value_using_name (class, obj, slot_name);
if (SCM_GOOPS_UNBOUNDP (res))
- return CALL_GF3 ("slot-unbound", class, obj, slot_name);
+ return scm_call_3 (SCM_VARIABLE_REF (var_slot_unbound), class, obj, slot_name);
return res;
}
#undef FUNC_NAME
static void clear_method_cache (SCM);
-static SCM
-wrap_init (SCM class, SCM *m, long n)
-{
- long i;
- scm_t_bits slayout = SCM_STRUCT_DATA (class)[scm_vtable_index_layout];
- const char *layout = scm_i_symbol_chars (SCM_PACK (slayout));
-
- /* Set all SCM-holding slots to unbound */
- for (i = 0; i < n; i++)
- if (layout[i*2] == 'p')
- m[i] = SCM_GOOPS_UNBOUND;
- else
- m[i] = 0;
-
- return scm_double_cell ((((scm_t_bits) SCM_STRUCT_DATA (class))
- | scm_tc3_struct),
- (scm_t_bits) m, 0, 0);
-}
-
SCM_DEFINE (scm_sys_allocate_instance, "%allocate-instance", 2, 0, 0,
(SCM class, SCM initargs),
"Create a new instance of class @var{class} and initialize it\n"
"from the arguments @var{initargs}.")
#define FUNC_NAME s_scm_sys_allocate_instance
{
- SCM *m;
+ SCM obj;
long n;
+ long i;
+ SCM layout;
SCM_VALIDATE_CLASS (1, class);
- /* Most instances */
- if (SCM_CLASS_FLAGS (class) & SCM_STRUCTF_LIGHT)
- {
- n = SCM_I_INUM (SCM_SLOT (class, scm_si_nfields));
- m = (SCM *) scm_gc_malloc (n * sizeof (SCM), "struct");
- return wrap_init (class, m, n);
- }
-
- /* Foreign objects */
- if (SCM_CLASS_FLAGS (class) & SCM_CLASSF_FOREIGN)
- return scm_make_foreign_object (class, initargs);
+ /* FIXME: duplicates some of scm_make_struct. */
n = SCM_I_INUM (SCM_SLOT (class, scm_si_nfields));
+ obj = scm_i_alloc_struct (SCM_STRUCT_DATA (class), n, "struct");
- /* Entities */
- if (SCM_CLASS_FLAGS (class) & SCM_CLASSF_ENTITY)
- {
- m = (SCM *) scm_alloc_struct (n, scm_struct_entity_n_extra_words,
- "entity struct");
- m[scm_struct_i_setter] = SCM_BOOL_F;
- m[scm_struct_i_procedure] = SCM_BOOL_F;
- /* Generic functions */
- if (SCM_CLASS_FLAGS (class) & SCM_CLASSF_PURE_GENERIC)
- {
- SCM gf = wrap_init (class, m, n);
- clear_method_cache (gf);
- return gf;
- }
+ layout = SCM_VTABLE_LAYOUT (class);
+
+ /* Set all SCM-holding slots to unbound */
+ for (i = 0; i < n; i++)
+ { scm_t_wchar c = scm_i_symbol_ref (layout, i*2);
+ if (c == 'p')
+ SCM_STRUCT_DATA (obj)[i] = SCM_UNPACK (SCM_GOOPS_UNBOUND);
+ else if (c == 's')
+ SCM_STRUCT_DATA (obj)[i] = SCM_UNPACK (obj);
else
- return wrap_init (class, m, n);
+ SCM_STRUCT_DATA (obj)[i] = 0;
}
- /* Class objects */
- if (SCM_CLASS_FLAGS (class) & SCM_CLASSF_METACLASS)
- {
- long i;
-
- /* allocate class object */
- SCM z = scm_make_struct (class, SCM_INUM0, SCM_EOL);
-
- SCM_SET_SLOT (z, scm_si_print, SCM_GOOPS_UNBOUND);
- for (i = scm_si_goops_fields; i < n; i++)
- SCM_SET_SLOT (z, i, SCM_GOOPS_UNBOUND);
+ if (SCM_CLASS_FLAGS (class) & SCM_CLASSF_PURE_GENERIC)
+ clear_method_cache (obj);
- if (SCM_SUBCLASSP (class, scm_class_entity_class))
- SCM_SET_CLASS_FLAGS (z, SCM_CLASSF_OPERATOR | SCM_CLASSF_ENTITY);
- else if (SCM_SUBCLASSP (class, scm_class_operator_class))
- SCM_SET_CLASS_FLAGS (z, SCM_CLASSF_OPERATOR);
-
- return z;
- }
-
- /* Non-light instances */
- {
- m = (SCM *) scm_alloc_struct (n, scm_struct_n_extra_words, "heavy struct");
- return wrap_init (class, m, n);
- }
+ return obj;
}
#undef FUNC_NAME
#define FUNC_NAME s_scm_sys_set_object_setter_x
{
SCM_ASSERT (SCM_STRUCTP (obj)
- && ((SCM_CLASS_FLAGS (obj) & SCM_CLASSF_OPERATOR)
- || SCM_I_ENTITYP (obj)),
+ && (SCM_OBJ_CLASS_FLAGS (obj) & SCM_CLASSF_PURE_GENERIC),
obj,
SCM_ARG1,
FUNC_NAME);
- if (SCM_I_ENTITYP (obj))
- SCM_SET_ENTITY_SETTER (obj, setter);
- else
- SCM_OPERATOR_CLASS (obj)->setter = setter;
+ SCM_SET_GENERIC_SETTER (obj, setter);
return SCM_UNSPECIFIED;
}
#undef FUNC_NAME
*/
SCM_CRITICAL_SECTION_START;
{
- SCM car = SCM_CAR (old);
- SCM cdr = SCM_CDR (old);
- SCM_SETCAR (old, SCM_CAR (new));
- SCM_SETCDR (old, SCM_CDR (new));
- SCM_SETCAR (new, car);
- SCM_SETCDR (new, cdr);
+ scm_t_bits word0, word1;
+ word0 = SCM_CELL_WORD_0 (old);
+ word1 = SCM_CELL_WORD_1 (old);
+ SCM_SET_CELL_WORD_0 (old, SCM_CELL_WORD_0 (new));
+ SCM_SET_CELL_WORD_1 (old, SCM_CELL_WORD_1 (new));
+ SCM_SET_CELL_WORD_0 (new, word0);
+ SCM_SET_CELL_WORD_1 (new, word1);
}
SCM_CRITICAL_SECTION_END;
return SCM_UNSPECIFIED;
SCM_CRITICAL_SECTION_START;
{
- SCM car = SCM_CAR (old);
- SCM cdr = SCM_CDR (old);
- SCM_SETCAR (old, SCM_CAR (new));
- SCM_SETCDR (old, SCM_CDR (new));
- SCM_STRUCT_DATA (old)[scm_vtable_index_vtable] = SCM_UNPACK (old);
- SCM_SETCAR (new, car);
- SCM_SETCDR (new, cdr);
- SCM_STRUCT_DATA (new)[scm_vtable_index_vtable] = SCM_UNPACK (new);
+ scm_t_bits word0, word1;
+ word0 = SCM_CELL_WORD_0 (old);
+ word1 = SCM_CELL_WORD_1 (old);
+ SCM_SET_CELL_WORD_0 (old, SCM_CELL_WORD_0 (new));
+ SCM_SET_CELL_WORD_1 (old, SCM_CELL_WORD_1 (new));
+ SCM_STRUCT_DATA (old)[scm_vtable_index_self] = SCM_UNPACK (old);
+ SCM_SET_CELL_WORD_0 (new, word0);
+ SCM_SET_CELL_WORD_1 (new, word1);
+ SCM_STRUCT_DATA (new)[scm_vtable_index_self] = SCM_UNPACK (new);
}
SCM_CRITICAL_SECTION_END;
return SCM_UNSPECIFIED;
static SCM
purgatory (void *args)
{
- return scm_apply_0 (GETVAR (scm_sym_change_class),
+ return scm_apply_0 (SCM_VARIABLE_REF (var_change_class),
SCM_PACK ((scm_t_bits) args));
}
SCM_GLOBAL_SYMBOL (scm_sym_args, "args");
+/* The cache argument for scm_mcache_lookup_cmethod has one of two possible
+ * formats:
+ *
+ * Format #1:
+ * (SCM_IM_DISPATCH ARGS N-SPECIALIZED
+ * #((TYPE1 ... . CMETHOD) ...)
+ * GF)
+ *
+ * Format #2:
+ * (SCM_IM_HASH_DISPATCH ARGS N-SPECIALIZED HASHSET MASK
+ * #((TYPE1 ... CMETHOD) ...)
+ * GF)
+ *
+ * ARGS is either a list of expressions, in which case they
+ * are interpreted as the arguments of an application, or
+ * a non-pair, which is interpreted as a single expression
+ * yielding all arguments.
+ *
+ * SCM_IM_DISPATCH expressions in generic functions always
+ * have ARGS = the symbol `args' or the iloc #@0-0.
+ *
+ * We should probably not complicate this mechanism by
+ * introducing "optimizations" for getters and setters or
+ * primitive methods. Getters and setter will normally be
+ * compiled into @slot-[ref|set!] or a procedure call.
+ * They rely on the dispatch performed before executing
+ * the code which contains them.
+ *
+ * We might want to use a more efficient representation of
+ * this form in the future, perhaps after we have introduced
+ * low-level support for syntax-case macros.
+ */
+
+SCM
+scm_mcache_lookup_cmethod (SCM cache, SCM args)
+{
+ unsigned long i, mask, n, end;
+ SCM ls, methods, z = SCM_CDDR (cache);
+ n = scm_to_ulong (SCM_CAR (z)); /* maximum number of specializers */
+ methods = SCM_CADR (z);
+
+ if (scm_is_simple_vector (methods))
+ {
+ /* cache format #1: prepare for linear search */
+ mask = -1;
+ i = 0;
+ end = SCM_SIMPLE_VECTOR_LENGTH (methods);
+ }
+ else
+ {
+ /* cache format #2: compute a hash value */
+ unsigned long hashset = scm_to_ulong (methods);
+ long j = n;
+ z = SCM_CDDR (z);
+ mask = scm_to_ulong (SCM_CAR (z));
+ methods = SCM_CADR (z);
+ i = 0;
+ ls = args;
+ if (!scm_is_null (ls))
+ do
+ {
+ i += SCM_STRUCT_DATA (scm_class_of (SCM_CAR (ls)))
+ [scm_si_hashsets + hashset];
+ ls = SCM_CDR (ls);
+ }
+ while (j-- && !scm_is_null (ls));
+ i &= mask;
+ end = i;
+ }
+
+ /* Search for match */
+ do
+ {
+ long j = n;
+ z = SCM_SIMPLE_VECTOR_REF (methods, i);
+ ls = args; /* list of arguments */
+ /* More arguments than specifiers => z = CMETHOD, not a pair.
+ * Fewer arguments than specifiers => CAR != CLASS or `no-method'. */
+ if (!scm_is_null (ls) && scm_is_pair (z))
+ do
+ {
+ if (! scm_is_eq (scm_class_of (SCM_CAR (ls)), SCM_CAR (z)))
+ goto next_method;
+ ls = SCM_CDR (ls);
+ z = SCM_CDR (z);
+ }
+ while (j-- && !scm_is_null (ls) && scm_is_pair (z));
+ if (!scm_is_pair (z))
+ return z;
+ next_method:
+ i = (i + 1) & mask;
+ } while (i != end);
+ return SCM_BOOL_F;
+}
+
+SCM
+scm_mcache_compute_cmethod (SCM cache, SCM args)
+{
+ SCM cmethod = scm_mcache_lookup_cmethod (cache, args);
+ if (scm_is_false (cmethod))
+ /* No match - memoize */
+ return scm_memoize_method (cache, args);
+ return cmethod;
+}
+
+SCM
+scm_apply_generic (SCM gf, SCM args)
+{
+ SCM cmethod = scm_mcache_compute_cmethod (SCM_GENERIC_METHOD_CACHE (gf), args);
+ 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_call_generic_0 (SCM gf)
+{
+ return scm_apply_generic (gf, SCM_EOL);
+}
+
+SCM
+scm_call_generic_1 (SCM gf, SCM a1)
+{
+ return scm_apply_generic (gf, scm_list_1 (a1));
+}
+
+SCM
+scm_call_generic_2 (SCM gf, SCM a1, SCM a2)
+{
+ return scm_apply_generic (gf, scm_list_2 (a1, a2));
+}
+
+SCM
+scm_call_generic_3 (SCM gf, SCM a1, SCM a2, SCM a3)
+{
+ return scm_apply_generic (gf, scm_list_3 (a1, a2, a3));
+}
+
SCM
scm_make_method_cache (SCM gf)
{
gf);
}
+SCM_SYMBOL (sym_delayed_compile, "delayed-compile");
+static SCM
+make_dispatch_procedure (SCM gf)
+{
+ static SCM var = SCM_BOOL_F;
+ if (var == SCM_BOOL_F)
+ var = scm_module_variable (scm_c_resolve_module ("oop goops dispatch"),
+ sym_delayed_compile);
+ return scm_call_1 (SCM_VARIABLE_REF (var), gf);
+}
+
static void
clear_method_cache (SCM gf)
{
SCM cache = scm_make_method_cache (gf);
- SCM_SET_ENTITY_PROCEDURE (gf, cache);
- SCM_SET_SLOT (gf, scm_si_used_by, SCM_BOOL_F);
+ SCM_SET_GENERIC_METHOD_CACHE (gf, cache);
+ SCM_SET_GENERIC_DISPATCH_PROCEDURE (gf, make_dispatch_procedure (gf));
+ SCM_CLEAR_GENERIC_EFFECTIVE_METHODS (gf);
}
SCM_DEFINE (scm_sys_invalidate_method_cache_x, "%invalidate-method-cache!", 1, 0, 0,
"")
#define FUNC_NAME s_scm_sys_invalidate_method_cache_x
{
- SCM used_by;
SCM_ASSERT (SCM_PUREGENERICP (gf), gf, SCM_ARG1, FUNC_NAME);
- used_by = SCM_SLOT (gf, scm_si_used_by);
- if (scm_is_true (used_by))
- {
- SCM methods = SCM_SLOT (gf, scm_si_methods);
- for (; scm_is_pair (used_by); used_by = SCM_CDR (used_by))
- scm_sys_invalidate_method_cache_x (SCM_CAR (used_by));
- clear_method_cache (gf);
- for (; scm_is_pair (methods); methods = SCM_CDR (methods))
- SCM_SET_SLOT (SCM_CAR (methods), scm_si_code_table, SCM_EOL);
- }
- {
- SCM n = SCM_SLOT (gf, scm_si_n_specialized);
- /* The sign of n is a flag indicating rest args. */
- SCM_SET_MCACHE_N_SPECIALIZED (SCM_ENTITY_PROCEDURE (gf), n);
- }
+ clear_method_cache (gf);
+ /* The sign of n-specialized is a flag indicating rest args. */
+ SCM_SET_MCACHE_N_SPECIALIZED (SCM_GENERIC_METHOD_CACHE (gf),
+ SCM_SLOT (gf, scm_si_n_specialized));
return SCM_UNSPECIFIED;
}
#undef FUNC_NAME
*SCM_SUBR_GENERIC (subr)
= scm_make (scm_list_3 (scm_class_generic,
k_name,
- SCM_SNAME (subr)));
+ SCM_SUBR_NAME (subr)));
subrs = SCM_CDR (subrs);
}
return SCM_UNSPECIFIED;
SCM extension;
} t_extension;
+
+/* Hint for `scm_gc_malloc ()' et al. when allocating `t_extension'
+ objects. */
+static const char extension_gc_hint[] = "GOOPS extension";
+
static t_extension *extensions = 0;
SCM_VARIABLE (scm_var_make_extended_generic, "make-extended-generic");
gf = *SCM_SUBR_GENERIC (extended);
gext = scm_call_2 (SCM_VARIABLE_REF (scm_var_make_extended_generic),
gf,
- SCM_SNAME (extension));
- *SCM_SUBR_GENERIC (extension) = gext;
+ SCM_SUBR_NAME (extension));
+ SCM_SET_SUBR_GENERIC (extension, gext);
}
else
{
- t_extension *e = scm_malloc (sizeof (t_extension));
+ t_extension *e = scm_gc_malloc (sizeof (t_extension),
+ extension_gc_hint);
t_extension **loc = &extensions;
/* Make sure that extensions are placed before their own
* extensions in the extensions list. O(N^2) algorithm, but
t_extension *e = extensions;
scm_c_extend_primitive_generic (e->extended, e->extension);
extensions = e->next;
- free (e);
}
}
for (l = scm_generic_function_methods (gf); !scm_is_null (l); l = SCM_CDR (l))
{
fl = SPEC_OF (SCM_CAR (l));
- /* Only accept accessors which match exactly in first arg. */
- if (SCM_ACCESSORP (SCM_CAR (l))
- && (scm_is_null (fl) || types[0] != SCM_CAR (fl)))
- continue;
for (i = 0; ; i++, fl = SCM_CDR (fl))
{
if (SCM_INSTANCEP (fl)
{
if (find_method_p)
return SCM_BOOL_F;
- CALL_GF2 ("no-applicable-method", gf, save);
+ scm_call_2 (SCM_VARIABLE_REF (var_no_applicable_method), gf, save);
/* if we are here, it's because no-applicable-method hasn't signaled an error */
return SCM_BOOL_F;
}
SCM cmethod = scm_mcache_lookup_cmethod (x, SCM_CDDR (args));
if (scm_is_true (cmethod))
return cmethod;
- /*fixme* Use scm_apply */
- return CALL_GF3 ("memoize-method!", gf, SCM_CDDR (args), x);
+
+ if (SCM_UNLIKELY (scm_is_false (var_memoize_method_x)))
+ var_memoize_method_x =
+ scm_permanent_object
+ (scm_module_variable (scm_module_goops, sym_memoize_method_x));
+
+ return scm_call_3 (SCM_VARIABLE_REF (var_memoize_method_x), gf, SCM_CDDR (args), x);
}
SCM
SCM_KEYWORD (k_setter, "setter");
SCM_KEYWORD (k_specializers, "specializers");
SCM_KEYWORD (k_procedure, "procedure");
+SCM_KEYWORD (k_formals, "formals");
+SCM_KEYWORD (k_body, "body");
+SCM_KEYWORD (k_make_procedure, "make-procedure");
SCM_KEYWORD (k_dsupers, "dsupers");
SCM_KEYWORD (k_slots, "slots");
SCM_KEYWORD (k_gf, "generic-function");
if (class == scm_class_generic || class == scm_class_accessor)
{
z = scm_make_struct (class, SCM_INUM0,
- scm_list_5 (SCM_EOL,
+ scm_list_5 (SCM_BOOL_F,
+ SCM_EOL,
SCM_INUM0,
- SCM_BOOL_F,
scm_make_mutex (),
SCM_EOL));
scm_set_procedure_property_x (z, scm_sym_name,
z = scm_sys_allocate_instance (class, args);
if (class == scm_class_method
- || class == scm_class_simple_method
|| class == scm_class_accessor_method)
{
SCM_SET_SLOT (z, scm_si_generic_function,
FUNC_NAME));
SCM_SET_SLOT (z, scm_si_procedure,
scm_i_get_keyword (k_procedure,
+ args,
+ len - 1,
+ SCM_BOOL_F,
+ FUNC_NAME));
+ SCM_SET_SLOT (z, scm_si_formals,
+ scm_i_get_keyword (k_formals,
+ args,
+ len - 1,
+ SCM_EOL,
+ FUNC_NAME));
+ SCM_SET_SLOT (z, scm_si_body,
+ scm_i_get_keyword (k_body,
args,
len - 1,
SCM_EOL,
FUNC_NAME));
- SCM_SET_SLOT (z, scm_si_code_table, SCM_EOL);
+ SCM_SET_SLOT (z, scm_si_make_procedure,
+ scm_i_get_keyword (k_make_procedure,
+ args,
+ len - 1,
+ SCM_BOOL_F,
+ FUNC_NAME));
}
else
{
/* In all the others case, make a new class .... No instance here */
- SCM_SET_SLOT (z, scm_si_name,
+ SCM_SET_SLOT (z, scm_vtable_index_name,
scm_i_get_keyword (k_name,
args,
len - 1,
create_standard_classes (void)
{
SCM slots;
- SCM method_slots = scm_list_4 (scm_from_locale_symbol ("generic-function"),
+ SCM method_slots = scm_list_n (scm_from_locale_symbol ("generic-function"),
scm_from_locale_symbol ("specializers"),
sym_procedure,
- scm_from_locale_symbol ("code-table"));
+ scm_from_locale_symbol ("formals"),
+ scm_from_locale_symbol ("body"),
+ scm_from_locale_symbol ("make-procedure"),
+ SCM_UNDEFINED);
SCM amethod_slots = scm_list_1 (scm_list_3 (scm_from_locale_symbol ("slot-definition"),
k_init_keyword,
k_slot_definition));
SCM_EOL,
mutex_slot),
SCM_EOL);
- SCM gf_slots = scm_list_5 (scm_from_locale_symbol ("methods"),
+ SCM gf_slots = scm_list_n (scm_from_locale_symbol ("methods"),
scm_list_3 (scm_from_locale_symbol ("n-specialized"),
k_init_value,
SCM_INUM0),
- scm_list_3 (scm_from_locale_symbol ("used-by"),
- k_init_value,
- SCM_BOOL_F),
scm_list_3 (scm_from_locale_symbol ("cache-mutex"),
k_init_thunk,
mutex_closure),
scm_list_3 (scm_from_locale_symbol ("extended-by"),
k_init_value,
- SCM_EOL));
+ SCM_EOL),
+ scm_from_locale_symbol ("%cache"),
+ scm_from_locale_symbol ("effective-methods"),
+ SCM_UNDEFINED);
+ SCM setter_slots = scm_list_1 (sym_setter);
SCM egf_slots = scm_list_1 (scm_list_3 (scm_from_locale_symbol ("extends"),
k_init_value,
SCM_EOL));
scm_class_class, scm_class_top, SCM_EOL);
make_stdcls (&scm_class_protected, "<protected-slot>",
scm_class_class, scm_class_foreign_slot, SCM_EOL);
+ make_stdcls (&scm_class_hidden, "<hidden-slot>",
+ scm_class_class, scm_class_foreign_slot, SCM_EOL);
make_stdcls (&scm_class_opaque, "<opaque-slot>",
scm_class_class, scm_class_foreign_slot, SCM_EOL);
make_stdcls (&scm_class_read_only, "<read-only-slot>",
scm_class_class, scm_class_foreign_slot, SCM_EOL);
make_stdcls (&scm_class_self, "<self-slot>",
- scm_class_class,
- scm_class_read_only,
- SCM_EOL);
+ scm_class_class, scm_class_read_only, SCM_EOL);
make_stdcls (&scm_class_protected_opaque, "<protected-opaque-slot>",
scm_class_class,
scm_list_2 (scm_class_protected, scm_class_opaque),
SCM_EOL);
+ make_stdcls (&scm_class_protected_hidden, "<protected-hidden-slot>",
+ scm_class_class,
+ scm_list_2 (scm_class_protected, scm_class_hidden),
+ SCM_EOL);
make_stdcls (&scm_class_protected_read_only, "<protected-read-only-slot>",
scm_class_class,
scm_list_2 (scm_class_protected, scm_class_read_only),
SCM_SET_SLOT (scm_class_class, scm_si_getters_n_setters,
compute_getters_n_setters (slots));
- make_stdcls (&scm_class_foreign_class, "<foreign-class>",
- scm_class_class, scm_class_class,
- scm_list_2 (scm_list_3 (scm_from_locale_symbol ("constructor"),
- k_class,
- scm_class_opaque),
- scm_list_3 (scm_from_locale_symbol ("destructor"),
- k_class,
- scm_class_opaque)));
- make_stdcls (&scm_class_foreign_object, "<foreign-object>",
- scm_class_foreign_class, scm_class_object, SCM_EOL);
- SCM_SET_CLASS_FLAGS (scm_class_foreign_object, SCM_CLASSF_FOREIGN);
-
/* scm_class_generic functions classes */
make_stdcls (&scm_class_procedure_class, "<procedure-class>",
scm_class_class, scm_class_class, SCM_EOL);
- make_stdcls (&scm_class_entity_class, "<entity-class>",
+ make_stdcls (&scm_class_applicable_struct_class, "<applicable-struct-class>",
scm_class_class, scm_class_procedure_class, SCM_EOL);
- make_stdcls (&scm_class_operator_class, "<operator-class>",
- scm_class_class, scm_class_procedure_class, SCM_EOL);
- make_stdcls (&scm_class_operator_with_setter_class,
- "<operator-with-setter-class>",
- scm_class_class, scm_class_operator_class, SCM_EOL);
+ /* SCM_SET_VTABLE_FLAGS (scm_class_applicable_struct_class,
+ SCM_VTABLE_FLAG_APPLICABLE_VTABLE); */
make_stdcls (&scm_class_method, "<method>",
scm_class_class, scm_class_object, method_slots);
- make_stdcls (&scm_class_simple_method, "<simple-method>",
- scm_class_class, scm_class_method, SCM_EOL);
- SCM_SET_CLASS_FLAGS (scm_class_simple_method, SCM_CLASSF_SIMPLE_METHOD);
make_stdcls (&scm_class_accessor_method, "<accessor-method>",
- scm_class_class, scm_class_simple_method, amethod_slots);
- SCM_SET_CLASS_FLAGS (scm_class_accessor_method, SCM_CLASSF_ACCESSOR_METHOD);
+ scm_class_class, scm_class_method, amethod_slots);
make_stdcls (&scm_class_applicable, "<applicable>",
scm_class_class, scm_class_top, SCM_EOL);
- make_stdcls (&scm_class_entity, "<entity>",
- scm_class_entity_class,
+ make_stdcls (&scm_class_applicable_struct, "<applicable-struct>",
+ scm_class_applicable_struct_class,
scm_list_2 (scm_class_object, scm_class_applicable),
- SCM_EOL);
- make_stdcls (&scm_class_entity_with_setter, "<entity-with-setter>",
- scm_class_entity_class, scm_class_entity, SCM_EOL);
+ scm_list_1 (sym_procedure));
make_stdcls (&scm_class_generic, "<generic>",
- scm_class_entity_class, scm_class_entity, gf_slots);
+ scm_class_applicable_struct_class, scm_class_applicable_struct, gf_slots);
SCM_SET_CLASS_FLAGS (scm_class_generic, SCM_CLASSF_PURE_GENERIC);
make_stdcls (&scm_class_extended_generic, "<extended-generic>",
- scm_class_entity_class, scm_class_generic, egf_slots);
+ scm_class_applicable_struct_class, scm_class_generic, egf_slots);
SCM_SET_CLASS_FLAGS (scm_class_extended_generic, SCM_CLASSF_PURE_GENERIC);
make_stdcls (&scm_class_generic_with_setter, "<generic-with-setter>",
- scm_class_entity_class,
- scm_list_2 (scm_class_generic, scm_class_entity_with_setter),
- SCM_EOL);
+ scm_class_applicable_struct_class, scm_class_generic, setter_slots);
SCM_SET_CLASS_FLAGS (scm_class_generic_with_setter, SCM_CLASSF_PURE_GENERIC);
make_stdcls (&scm_class_accessor, "<accessor>",
- scm_class_entity_class, scm_class_generic_with_setter, SCM_EOL);
+ scm_class_applicable_struct_class, scm_class_generic_with_setter, SCM_EOL);
SCM_SET_CLASS_FLAGS (scm_class_accessor, SCM_CLASSF_PURE_GENERIC);
make_stdcls (&scm_class_extended_generic_with_setter,
"<extended-generic-with-setter>",
- scm_class_entity_class,
+ scm_class_applicable_struct_class,
scm_list_2 (scm_class_generic_with_setter,
scm_class_extended_generic),
SCM_EOL);
SCM_SET_CLASS_FLAGS (scm_class_extended_generic_with_setter,
SCM_CLASSF_PURE_GENERIC);
make_stdcls (&scm_class_extended_accessor, "<extended-accessor>",
- scm_class_entity_class,
+ scm_class_applicable_struct_class,
scm_list_2 (scm_class_accessor,
scm_class_extended_generic_with_setter),
SCM_EOL);
/* Only define name if doesn't already exist. */
if (!SCM_GOOPS_UNBOUNDP (name)
- && scm_is_false (scm_call_2 (scm_goops_lookup_closure, name, SCM_BOOL_F)))
+ && scm_is_false (scm_module_variable (scm_module_goops, name)))
+ DEFVAR (name, class);
+ return class;
+}
+
+static SCM
+make_class_from_symbol (SCM type_name_sym, SCM supers, int applicablep)
+{
+ SCM class, name;
+ if (type_name_sym != SCM_BOOL_F)
+ {
+ name = scm_string_append (scm_list_3 (scm_from_locale_string ("<"),
+ scm_symbol_to_string (type_name_sym),
+ scm_from_locale_string (">")));
+ name = scm_string_to_symbol (name);
+ }
+ else
+ name = SCM_GOOPS_UNBOUND;
+
+ class = scm_permanent_object (scm_basic_make_class (applicablep
+ ? scm_class_procedure_class
+ : scm_class_class,
+ name,
+ supers,
+ SCM_EOL));
+
+ /* Only define name if doesn't already exist. */
+ if (!SCM_GOOPS_UNBOUNDP (name)
+ && scm_is_false (scm_module_variable (scm_module_goops, name)))
DEFVAR (name, class);
return class;
}
applicablep);
}
+static SCM
+scm_make_extended_class_from_symbol (SCM type_name_sym, int applicablep)
+{
+ return make_class_from_symbol (type_name_sym,
+ scm_list_1 (applicablep
+ ? scm_class_applicable
+ : scm_class_top),
+ applicablep);
+}
+
void
scm_i_inherit_applicable (SCM c)
{
{
long i;
- scm_smob_class = (SCM *) scm_malloc (255 * sizeof (SCM));
- for (i = 0; i < 255; ++i)
+ for (i = 0; i < SCM_I_MAX_SMOB_TYPE_COUNT; ++i)
scm_smob_class[i] = 0;
scm_smob_class[SCM_TC2SMOBNUM (scm_tc16_keyword)] = scm_class_keyword;
{
long i;
- scm_port_class = (SCM *) scm_malloc (3 * 256 * sizeof (SCM));
- for (i = 0; i < 3 * 256; ++i)
- scm_port_class[i] = 0;
-
for (i = 0; i < scm_numptob; ++i)
scm_make_port_classes (i, SCM_PTOBNAME (i));
}
make_struct_class (void *closure SCM_UNUSED,
SCM vtable, SCM data, SCM prev SCM_UNUSED)
{
- if (scm_is_true (SCM_STRUCT_TABLE_NAME (data)))
- SCM_SET_STRUCT_TABLE_CLASS (data,
- scm_make_extended_class
- (scm_i_symbol_chars (SCM_STRUCT_TABLE_NAME (data)),
- SCM_CLASS_FLAGS (vtable) & SCM_CLASSF_OPERATOR));
+ SCM sym = SCM_STRUCT_TABLE_NAME (data);
+ if (scm_is_true (sym))
+ {
+ int applicablep = SCM_CLASS_FLAGS (vtable) & SCM_VTABLE_FLAG_APPLICABLE;
+
+ SCM_SET_STRUCT_TABLE_CLASS (data,
+ scm_make_extended_class_from_symbol (sym, applicablep));
+ }
+
+ scm_remember_upto_here_2 (data, vtable);
return SCM_UNSPECIFIED;
}
}
-SCM
-scm_make_foreign_object (SCM class, SCM initargs)
-#define FUNC_NAME s_scm_make
-{
- void * (*constructor) (SCM)
- = (void * (*) (SCM)) SCM_SLOT (class, scm_si_constructor);
- if (constructor == 0)
- SCM_MISC_ERROR ("Can't make instances of class ~S", scm_list_1 (class));
- return scm_wrap_object (class, constructor (initargs));
-}
-#undef FUNC_NAME
-
-
-static size_t
-scm_free_foreign_object (SCM *class, SCM *data)
-{
- size_t (*destructor) (void *)
- = (size_t (*) (void *)) class[scm_si_destructor];
- return destructor (data);
-}
-
-SCM
-scm_make_class (SCM meta, char *s_name, SCM supers, size_t size,
- void * (*constructor) (SCM initargs),
- size_t (*destructor) (void *))
-{
- SCM name, class;
- name = scm_from_locale_symbol (s_name);
- if (scm_is_null (supers))
- supers = scm_list_1 (scm_class_foreign_object);
- class = scm_basic_basic_make_class (meta, name, supers, SCM_EOL);
- scm_sys_inherit_magic_x (class, supers);
-
- if (destructor != 0)
- {
- SCM_SET_SLOT (class, scm_si_destructor, (SCM) destructor);
- SCM_SET_CLASS_DESTRUCTOR (class, scm_free_foreign_object);
- }
- else if (size > 0)
- {
- SCM_SET_CLASS_DESTRUCTOR (class, scm_struct_free_light);
- SCM_SET_CLASS_INSTANCE_SIZE (class, size);
- }
-
- SCM_SET_SLOT (class, scm_si_layout, scm_from_locale_symbol (""));
- SCM_SET_SLOT (class, scm_si_constructor, (SCM) constructor);
-
- return class;
-}
-
SCM_SYMBOL (sym_o, "o");
SCM_SYMBOL (sym_x, "x");
SCM_KEYWORD (k_accessor, "accessor");
SCM_KEYWORD (k_getter, "getter");
-static SCM
-default_setter (SCM obj SCM_UNUSED, SCM c SCM_UNUSED)
-{
- scm_misc_error ("slot-set!", "read-only slot", SCM_EOL);
- return 0;
-}
-
-void
-scm_add_slot (SCM class, char *slot_name, SCM slot_class,
- SCM (*getter) (SCM obj),
- SCM (*setter) (SCM obj, SCM x),
- char *accessor_name)
-{
- {
- SCM get = scm_c_make_subr ("goops:get", scm_tc7_subr_1, getter);
- SCM set = scm_c_make_subr ("goops:set", scm_tc7_subr_2,
- setter ? setter : default_setter);
-
- /* Dirk:FIXME:: The following two expressions make use of the fact that
- * the memoizer will accept a subr-object in the place of a function.
- * This is not guaranteed to stay this way. */
- SCM getm = scm_i_eval_x (scm_list_3 (scm_sym_lambda,
- scm_list_1 (sym_o),
- scm_list_2 (get, sym_o)),
- SCM_EOL);
- SCM setm = scm_i_eval_x (scm_list_3 (scm_sym_lambda,
- scm_list_2 (sym_o, sym_x),
- scm_list_3 (set, sym_o, sym_x)),
- SCM_EOL);
-
- {
- SCM name = scm_from_locale_symbol (slot_name);
- SCM aname = scm_from_locale_symbol (accessor_name);
- SCM gf = scm_ensure_accessor (aname);
- SCM slot = scm_list_5 (name,
- k_class,
- slot_class,
- setter ? k_accessor : k_getter,
- gf);
- scm_add_method (gf, scm_make (scm_list_5 (scm_class_accessor_method,
- k_specializers,
- scm_list_1 (class),
- k_procedure,
- getm)));
- scm_add_method (scm_setter (gf),
- scm_make (scm_list_5 (scm_class_accessor_method,
- k_specializers,
- scm_list_2 (class, scm_class_top),
- k_procedure,
- setm)));
- DEFVAR (aname, gf);
-
- SCM_SET_SLOT (class, scm_si_slots,
- scm_append_x (scm_list_2 (SCM_SLOT (class, scm_si_slots),
- scm_list_1 (slot))));
- {
- SCM n = SCM_SLOT (class, scm_si_nfields);
- SCM gns = scm_list_n (name, SCM_BOOL_F, get, set, n, scm_from_int (1),
- SCM_UNDEFINED);
- SCM_SET_SLOT (class, scm_si_getters_n_setters,
- scm_append_x (scm_list_2 (SCM_SLOT (class, scm_si_getters_n_setters),
- scm_list_1 (gns))));
- SCM_SET_SLOT (class, scm_si_nfields, scm_sum (n, scm_from_int (1)));
- }
- }
- }
-}
-
-SCM
-scm_wrap_object (SCM class, void *data)
-{
- return scm_double_cell (SCM_UNPACK (SCM_CDR (class)) | scm_tc3_struct,
- (scm_t_bits) data,
- 0, 0);
-}
-
-SCM scm_components;
-
-SCM
-scm_wrap_component (SCM class, SCM container, void *data)
-{
- SCM obj = scm_wrap_object (class, data);
- SCM handle = scm_hash_fn_create_handle_x (scm_components,
- obj,
- SCM_BOOL_F,
- scm_struct_ihashq,
- scm_sloppy_assq,
- 0);
- SCM_SETCDR (handle, container);
- return obj;
-}
-
SCM
scm_ensure_accessor (SCM name)
{
{
goops_loaded_p = 1;
var_compute_applicable_methods =
- scm_sym2var (sym_compute_applicable_methods, scm_goops_lookup_closure,
- SCM_BOOL_F);
+ scm_permanent_object
+ (scm_module_variable (scm_module_goops, sym_compute_applicable_methods));
+ var_slot_unbound =
+ scm_permanent_object
+ (scm_module_variable (scm_module_goops, sym_slot_unbound));
+ var_slot_missing =
+ scm_permanent_object
+ (scm_module_variable (scm_module_goops, sym_slot_missing));
+ var_compute_cpl =
+ scm_permanent_object
+ (scm_module_variable (scm_module_goops, sym_compute_cpl));
+ var_no_applicable_method =
+ scm_permanent_object
+ (scm_module_variable (scm_module_goops, sym_no_applicable_method));
+ var_change_class =
+ scm_permanent_object
+ (scm_module_variable (scm_module_goops, sym_change_class));
setup_extended_primitive_generics ();
return SCM_UNSPECIFIED;
}
scm_init_goops_builtins (void)
{
scm_module_goops = scm_current_module ();
- scm_goops_lookup_closure = scm_module_lookup_closure (scm_module_goops);
/* Not really necessary right now, but who knows...
*/
scm_permanent_object (scm_module_goops);
- scm_permanent_object (scm_goops_lookup_closure);
-
- scm_components = scm_permanent_object (scm_make_weak_key_hash_table
- (scm_from_int (37)));
goops_rstate = scm_c_make_rstate ("GOOPS", 5);
HCoop / bpt / guile.git / blobdiff