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2b7692bcc4
* libguile/goops.h (SCM_PUREGENERICP, SCM_VALIDATE_PUREGENERIC) (SCM_VTABLE_FLAG_GOOPS_PURE_GENERIC, SCM_CLASSF_PURE_GENERIC): Remove. * libguile/goops.c (scm_set_primitive_generic_x): Use SCM_GENERICP, not SCM_PUREGENERICP. (scm_sys_bless_pure_generic_vtable_x): Remove; this flag isn't checked. * module/oop/goops.scm: Don't call %bless-pure-generic-vtable!; there's no need.
194 lines
8.2 KiB
C
194 lines
8.2 KiB
C
/* classes: h_files */
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#ifndef SCM_GOOPS_H
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#define SCM_GOOPS_H
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/* Copyright (C) 1998,1999,2000,2001,2002,2003, 2006, 2008, 2009, 2011, 2015 Free Software Foundation, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 3 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*/
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/* This software is a derivative work of other copyrighted softwares; the
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* copyright notices of these softwares are placed in the file COPYRIGHTS
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*
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* This file is based upon stklos.h from the STk distribution by
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* Erick Gallesio <eg@unice.fr>.
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*/
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#include "libguile/__scm.h"
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#include "libguile/validate.h"
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/* {Class flags}
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*
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* These are used for efficient identification of instances of a
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* certain class or its subclasses when traversal of the inheritance
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* graph would be too costly.
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*/
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#define SCM_VTABLE_FLAG_GOOPS_CLASS SCM_VTABLE_FLAG_GOOPS_0
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#define SCM_VTABLE_FLAG_GOOPS_VALID SCM_VTABLE_FLAG_GOOPS_1
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#define SCM_CLASS_OF(x) SCM_STRUCT_VTABLE (x)
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#define SCM_CLASS_FLAGS(class) (SCM_VTABLE_FLAGS (class))
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#define SCM_OBJ_CLASS_FLAGS(obj) (SCM_STRUCT_VTABLE_FLAGS (obj))
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#define SCM_SET_CLASS_FLAGS(c, f) (SCM_SET_VTABLE_FLAGS (c, f))
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#define SCM_CLEAR_CLASS_FLAGS(c, f) (SCM_CLEAR_VTABLE_FLAGS (c, f))
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#define SCM_CLASSF_METACLASS (SCM_VTABLE_FLAG_GOOPS_CLASS|SCM_VTABLE_FLAG_VTABLE)
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#define SCM_CLASSF_GOOPS_VALID SCM_VTABLE_FLAG_GOOPS_VALID
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#define SCM_CLASSF_GOOPS SCM_VTABLE_FLAG_GOOPS_CLASS
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#define SCM_CLASSF_GOOPS_OR_VALID (SCM_CLASSF_GOOPS | SCM_CLASSF_GOOPS_VALID)
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/*
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* scm_class_class
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*/
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/* see also, SCM_VTABLE_BASE_LAYOUT, and build_class_class_slots */
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#define SCM_CLASS_CLASS_LAYOUT \
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"pw" /* redefined */ \
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"pw" /* direct supers */ \
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"pw" /* direct slots */ \
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"pw" /* direct subclasses */ \
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"pw" /* direct methods */ \
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"pw" /* cpl */ \
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"pw" /* slots */ \
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"pw" /* getters-n-setters */ \
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"pw" /* nfields */
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#define scm_si_redefined (scm_vtable_offset_user + 0)
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#define scm_si_direct_supers (scm_vtable_offset_user + 1) /* (class ...) */
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#define scm_si_direct_slots (scm_vtable_offset_user + 2) /* ((name . options) ...) */
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#define scm_si_direct_subclasses (scm_vtable_offset_user + 3) /* (class ...) */
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#define scm_si_direct_methods (scm_vtable_offset_user + 4) /* (methods ...) */
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#define scm_si_cpl (scm_vtable_offset_user + 5) /* (class ...) */
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#define scm_si_slots (scm_vtable_offset_user + 6) /* ((name . options) ...) */
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#define scm_si_getters_n_setters (scm_vtable_offset_user + 7)
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#define scm_si_nfields (scm_vtable_offset_user + 8) /* an integer */
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#define SCM_N_CLASS_SLOTS (scm_vtable_offset_user + 9)
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#define SCM_OBJ_CLASS_REDEF(x) (SCM_PACK (SCM_STRUCT_VTABLE_DATA (x) [scm_si_redefined]))
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#define SCM_INST(x) SCM_STRUCT_DATA (x)
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#define SCM_CLASS_OF(x) SCM_STRUCT_VTABLE (x)
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#define SCM_ACCESSORS_OF(x) (SCM_PACK (SCM_STRUCT_VTABLE_DATA (x)[scm_si_getters_n_setters]))
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#define SCM_CLASSP(x) \
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(SCM_STRUCTP (x) && SCM_STRUCT_VTABLE_FLAGS (x) & SCM_CLASSF_METACLASS)
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#define SCM_VALIDATE_CLASS(pos, x) SCM_MAKE_VALIDATE_MSG (pos, x, CLASSP, "class")
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#define SCM_INSTANCEP(x) \
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(SCM_STRUCTP (x) && (SCM_STRUCT_VTABLE_FLAGS (x) & SCM_CLASSF_GOOPS))
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#define SCM_VALIDATE_INSTANCE(pos, x) SCM_MAKE_VALIDATE_MSG (pos, x, INSTANCEP, "instance")
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#define SCM_SLOT(x, i) (SCM_STRUCT_SLOT_REF (x, i))
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#define SCM_SET_SLOT(x, i, v) (SCM_STRUCT_SLOT_SET (x, i, v))
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#define SCM_SUBCLASSP(c1, c2) (scm_is_true (scm_c_memq (c2, SCM_SLOT (c1, scm_si_cpl))))
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#define SCM_IS_A_P(x, c) \
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(SCM_INSTANCEP (x) && SCM_SUBCLASSP (SCM_CLASS_OF (x), c))
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#define SCM_GENERICP(x) (scm_is_generic (x))
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#define SCM_VALIDATE_GENERIC(pos, x) SCM_MAKE_VALIDATE_MSG (pos, x, GENERICP, "generic function")
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#define SCM_METHODP(x) (scm_is_method (x))
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#define SCM_VALIDATE_METHOD(pos, x) SCM_MAKE_VALIDATE_MSG (pos, x, METHODP, "method")
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#define SCM_SET_CLASS_DESTRUCTOR(c, d) SCM_SET_VTABLE_DESTRUCTOR (c, d)
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SCM_INTERNAL SCM scm_i_port_class[];
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SCM_INTERNAL SCM scm_i_smob_class[];
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SCM_API SCM scm_module_goops;
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SCM_API SCM scm_goops_version (void);
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SCM_API void scm_load_goops (void);
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SCM_API SCM scm_make_extended_class (char const *type_name, int applicablep);
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SCM_API void scm_make_port_classes (long ptobnum, char *type_name);
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SCM_API SCM scm_ensure_accessor (SCM name);
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SCM_API SCM scm_class_of (SCM obj);
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/* Low level functions exported */
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SCM_API SCM scm_make_next_method (SCM methods, SCM args, SCM gf);
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SCM_INTERNAL SCM scm_make_standard_class (SCM meta, SCM name, SCM dsupers,
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SCM dslots);
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/* Primitives exported */
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SCM_API SCM scm_sys_allocate_instance (SCM c, SCM initargs);
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SCM_API SCM scm_slot_ref (SCM obj, SCM slot_name);
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SCM_API SCM scm_slot_set_x (SCM obj, SCM slot_name, SCM value);
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SCM_INTERNAL void scm_i_inherit_applicable (SCM c);
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SCM_INTERNAL SCM scm_i_get_keyword (SCM key, SCM l, long len,
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SCM default_value, const char *subr);
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SCM_API SCM scm_get_keyword (SCM key, SCM l, SCM default_value);
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SCM_API SCM scm_sys_initialize_object (SCM obj, SCM initargs);
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SCM_API SCM scm_sys_inherit_magic_x (SCM c, SCM dsupers);
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SCM_API SCM scm_instance_p (SCM obj);
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SCM_API int scm_is_generic (SCM x);
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SCM_API int scm_is_method (SCM x);
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SCM_API SCM scm_class_name (SCM obj);
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SCM_API SCM scm_class_direct_supers (SCM obj);
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SCM_API SCM scm_class_direct_slots (SCM obj);
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SCM_API SCM scm_class_direct_subclasses (SCM obj);
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SCM_API SCM scm_class_direct_methods (SCM obj);
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SCM_API SCM scm_class_precedence_list (SCM obj);
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SCM_API SCM scm_class_slots (SCM obj);
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SCM_API SCM scm_generic_function_name (SCM obj);
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SCM_API SCM scm_generic_function_methods (SCM obj);
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SCM_API SCM scm_method_generic_function (SCM obj);
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SCM_API SCM scm_method_specializers (SCM obj);
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SCM_API SCM scm_method_procedure (SCM obj);
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SCM_API SCM scm_slot_ref_using_class (SCM cls, SCM obj, SCM slot_name);
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SCM_API SCM scm_slot_set_using_class_x (SCM cls, SCM obj, SCM slot_name, SCM value);
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SCM_API SCM scm_slot_bound_using_class_p (SCM cls, SCM obj, SCM slot_name);
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SCM_API SCM scm_slot_exists_using_class_p (SCM cls, SCM obj, SCM slot_name);
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SCM_API SCM scm_slot_bound_p (SCM obj, SCM slot_name);
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SCM_API SCM scm_slot_exists_p (SCM obj, SCM slot_name);
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SCM_API SCM scm_sys_modify_instance (SCM old, SCM newinst);
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SCM_API SCM scm_sys_modify_class (SCM old, SCM newcls);
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SCM_API SCM scm_sys_invalidate_class (SCM cls);
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SCM_API SCM scm_sys_invalidate_method_cache_x (SCM gf);
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SCM_API SCM scm_generic_capability_p (SCM proc);
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SCM_API SCM scm_enable_primitive_generic_x (SCM subrs);
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SCM_INTERNAL SCM scm_set_primitive_generic_x (SCM subr, SCM generic);
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SCM_API SCM scm_primitive_generic_generic (SCM subr);
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SCM_API void scm_c_extend_primitive_generic (SCM subr, SCM extension);
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SCM_API SCM stklos_version (void);
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SCM_API SCM scm_make (SCM args);
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SCM_API void scm_change_object_class (SCM, SCM, SCM);
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/* These procedures are for dispatching to a generic when a primitive
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fails to apply. They raise a wrong-type-arg error if the primitive's
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generic has not been initialized yet. */
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SCM_API SCM scm_wta_dispatch_0 (SCM gf, const char *subr);
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SCM_API SCM scm_wta_dispatch_1 (SCM gf, SCM a1, int pos, const char *subr);
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SCM_API SCM scm_wta_dispatch_2 (SCM gf, SCM a1, SCM a2, int pos, const char *subr);
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SCM_API SCM scm_wta_dispatch_n (SCM gf, SCM args, int pos, const char *subr);
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SCM_INTERNAL SCM scm_i_define_class_for_vtable (SCM vtable);
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SCM_INTERNAL void scm_init_goops (void);
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#endif /* SCM_GOOPS_H */
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/*
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Local Variables:
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c-file-style: "gnu"
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End:
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*/
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