93 lines
2.4 KiB
C
93 lines
2.4 KiB
C
/* -*-comment-start: "//";comment-end:""-*-
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* GNU Mes --- Maxwell Equations of Software
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* Copyright © 2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
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* Copyright © 2019 Jeremiah Orians <jeremiah@pdp10.guru>
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*
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* This file is part of GNU Mes.
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*
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* GNU Mes is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or (at
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* your option) any later version.
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*
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* GNU Mes 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNU Mes. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "mes/lib.h"
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#include "mes/mes.h"
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struct scm *
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make_module_type ()
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{
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struct scm *record_type = cell_symbol_record_type; /* FIXME */
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struct scm *fields = cell_nil;
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fields = cons (cstring_to_symbol ("globals"), fields);
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fields = cons (cstring_to_symbol ("locals"), fields);
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fields = cons (cstring_to_symbol ("name"), fields);
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fields = cons (fields, cell_nil);
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fields = cons (cell_symbol_module, fields);
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return make_struct (record_type, fields, cell_unspecified);
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}
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struct scm *
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module_variable (struct scm *module, struct scm *name)
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{
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/* struct scm* locals = struct_ref_ (module, 3); */
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struct scm *locals = module;
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struct scm *x = assq (name, locals);
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if (x == cell_f)
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{
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struct scm *globals = struct_ref_ (M0, 5);
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x = hashq_get_handle (globals, name, cell_f);
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}
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return x;
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}
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struct scm *
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module_ref (struct scm *module, struct scm *name)
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{
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struct scm *y = module_variable (module, name);
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if (y == cell_f)
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{
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return cell_undefined;
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}
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return y->cdr;
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}
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struct scm *
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module_define_x (struct scm *module, struct scm *name, struct scm *value)
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{
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struct scm *globals = struct_ref_ (M0, 5);
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return hashq_set_x (globals, name, value);
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}
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/* External functions */
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struct scm *
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module_variable_ (struct scm *module, struct scm *name) /* EXTERNAL */
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{
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return module_variable (module, name);
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}
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struct scm *
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module_ref_ (struct scm *module, struct scm *name) /* EXTERNAL */
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{
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return module_ref (module, name);
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}
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struct scm *
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make_module_type_ () /* EXTERNAL */
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{
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return make_module_type ();
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}
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