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6c7dd9ebd3
* libguile/goops.c (scm_sys_set_object_setter_x): Remove. Instead, we use slot-set! of 'setter. (scm_i_define_class_for_vtable): Move lower in the file, and fold in scm_make_extended_class_from_symbol and make_class_from_symbol. Properly handle applicable structs with setters. (scm_class_applicable_struct_with_setter_class): New private capture. (scm_sys_bless_applicable_struct_vtables_x): Rename to take two arguments, and bless the second argument as an applicable struct with setter vtable. (scm_sys_goops_early_init): Capture setter classes. * libguile/deprecated.c (SPEC_OF, CPL_OF): Access slots by name, not by index. (applicablep, more_specificp): Adapt to use CPL_OF. (scm_find_method): Access "methods" slot by name. * libguile/procs.c (scm_setter): Remove special case for generics; if it's a setter, it will be a normal applicable struct. * module/oop/goops.scm (<applicable-struct-with-setter-class>) (<applicable-struct-with-setter>): New classes. (<generic-with-setter>): Now an instance of the setter metaclass and a child of the setter class, so that the "setter" slot ends up in the right place. (<accessor>, <extended-generic-with-setter>, <extended-accessor>): Be instances of the setter metaclass. (<method>, <accessor-method>): Move definitions farther down. (make): Use slot-set! when initializing setters here. (initialize): Likewise for <applicable-struct-with-setter>. Remove specialization for <generic-with-setter>.
141 lines
4 KiB
C
141 lines
4 KiB
C
/* Copyright (C) 1995, 1996, 1997, 1999, 2000, 2001, 2006, 2008, 2009,
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* 2010, 2011, 2012, 2013 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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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include "libguile/_scm.h"
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#include "libguile/strings.h"
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#include "libguile/vectors.h"
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#include "libguile/smob.h"
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#include "libguile/deprecation.h"
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#include "libguile/validate.h"
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#include "libguile/procs.h"
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#include "libguile/procprop.h"
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#include "libguile/loader.h"
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#include "libguile/programs.h"
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/* {Procedures}
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*/
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SCM_DEFINE (scm_procedure_p, "procedure?", 1, 0, 0,
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(SCM obj),
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"Return @code{#t} if @var{obj} is a procedure.")
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#define FUNC_NAME s_scm_procedure_p
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{
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return scm_from_bool (SCM_PROGRAM_P (obj)
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|| (SCM_STRUCTP (obj) && SCM_STRUCT_APPLICABLE_P (obj))
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|| (SCM_HAS_TYP7 (obj, scm_tc7_smob)
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&& SCM_SMOB_APPLICABLE_P (obj)));
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}
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#undef FUNC_NAME
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SCM_DEFINE (scm_thunk_p, "thunk?", 1, 0, 0,
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(SCM obj),
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"Return @code{#t} if @var{obj} is a thunk.")
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#define FUNC_NAME s_scm_thunk_p
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{
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int req, opt, rest;
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return scm_from_bool (scm_i_procedure_arity (obj, &req, &opt, &rest)
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&& req == 0);
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}
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#undef FUNC_NAME
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/* Procedure-with-setter
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*/
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static SCM pws_vtable;
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SCM_DEFINE (scm_procedure_with_setter_p, "procedure-with-setter?", 1, 0, 0,
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(SCM obj),
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"Return @code{#t} if @var{obj} is a procedure with an\n"
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"associated setter procedure.")
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#define FUNC_NAME s_scm_procedure_with_setter_p
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{
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return scm_from_bool (SCM_STRUCTP (obj) && SCM_STRUCT_SETTER_P (obj));
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}
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#undef FUNC_NAME
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SCM_DEFINE (scm_make_procedure_with_setter, "make-procedure-with-setter", 2, 0, 0,
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(SCM procedure, SCM setter),
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"Create a new procedure which behaves like @var{procedure}, but\n"
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"with the associated setter @var{setter}.")
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#define FUNC_NAME s_scm_make_procedure_with_setter
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{
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SCM_VALIDATE_PROC (1, procedure);
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SCM_VALIDATE_PROC (2, setter);
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return scm_make_struct (pws_vtable, SCM_INUM0,
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scm_list_2 (procedure, setter));
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}
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#undef FUNC_NAME
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SCM_DEFINE (scm_procedure, "procedure", 1, 0, 0,
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(SCM proc),
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"Return the procedure of @var{proc}, which must be an\n"
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"applicable struct.")
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#define FUNC_NAME s_scm_procedure
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{
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SCM_ASSERT (SCM_STRUCTP (proc) && SCM_STRUCT_APPLICABLE_P (proc),
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proc, SCM_ARG1, FUNC_NAME);
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return SCM_STRUCT_PROCEDURE (proc);
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}
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#undef FUNC_NAME
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SCM_PRIMITIVE_GENERIC (scm_setter, "setter", 1, 0, 0,
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(SCM proc),
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"Return the setter of @var{proc}, which must be an\n"
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"applicable struct with a setter.")
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#define FUNC_NAME s_scm_setter
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{
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if (SCM_UNLIKELY (!SCM_STRUCTP (proc)))
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return scm_wta_dispatch_1 (g_scm_setter, proc, SCM_ARG1, FUNC_NAME);
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if (SCM_STRUCT_SETTER_P (proc))
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return SCM_STRUCT_SETTER (proc);
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return scm_wta_dispatch_1 (g_scm_setter, proc, SCM_ARG1, FUNC_NAME);
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}
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#undef FUNC_NAME
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void
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scm_init_procs ()
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{
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pws_vtable =
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scm_c_make_struct (scm_applicable_struct_with_setter_vtable_vtable,
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0,
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1,
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SCM_UNPACK (scm_from_latin1_symbol ("pwpw")));
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#include "libguile/procs.x"
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}
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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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