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cd51ce81d0
This removes a limitation on the number of port types, simplifies the API, and removes a central point of coordination. * libguile/ports-internal.h (struct scm_t_port_type): Rename from scm_t_ptob_descriptor, now that it's private. Add GOOPS class fields. (struct scm_t_port): Rename from struct scm_port, especially considering that deprecated.h redefines scm_port using the preprocessor :(. * libguile/ports.h: Add definitions of SCM_PORT and SCM_PORT_TYPE, though the scm_t_port and scm_t_port_type types are incomplete. (SCM_TC2PTOBNUM, SCM_PTOBNUM, SCM_PTOBNAME): Remove, as there are no more typecodes for port types. (scm_c_num_port_types, scm_c_port_type_ref, scm_c_port_type_add_x): Remove. (scm_make_port_type): Return a scm_t_port_type*. All methods adapted to take a scm_t_port_type* instead of a ptobnum. (scm_c_make_port_with_encoding, scm_c_make_port): Take a port type pointer instead of a tag. (scm_new_port_table_entry): Remove; not useful. * libguile/ports.c: Remove things related to the port kind table. Adapt uses of SCM_PORT_DESCRIPTOR / scm_t_ptob_descriptor to use SCM_PORT_TYPE and scm_t_port_type. * libguile/deprecated.c: * libguile/deprecated.h: * libguile/filesys.c: * libguile/fports.c: * libguile/fports.h: * libguile/print.c: * libguile/r6rs-ports.c: * libguile/strports.c: * libguile/strports.h: * libguile/tags.h: * libguile/vports.c: * test-suite/standalone/test-scm-c-read.c: Adapt to change. * libguile/goops.c (scm_class_of, make_port_classes) (scm_make_port_classes, create_port_classes): Adapt to store the classes in the ptob.
150 lines
5.8 KiB
C
150 lines
5.8 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_VTABLE_FLAG_GOOPS_SLOT SCM_VTABLE_FLAG_GOOPS_2
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#define SCM_VTABLE_FLAG_GOOPS_STATIC SCM_VTABLE_FLAG_GOOPS_3
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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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#define SCM_CLASS_OF(x) SCM_STRUCT_VTABLE (x)
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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) \
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(scm_is_true (scm_c_memq (c2, scm_class_precedence_list (c1))))
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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_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_INTERNAL void scm_make_port_classes (scm_t_port_type *ptob);
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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_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_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_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_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_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 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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