1 | ;;; define-condition.lisp |
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2 | ;;; |
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3 | ;;; Copyright (C) 2003 Peter Graves |
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4 | ;;; $Id: define-condition.lisp,v 1.4 2003-11-02 00:22:37 piso Exp $ |
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5 | ;;; |
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6 | ;;; This program is free software; you can redistribute it and/or |
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7 | ;;; modify it under the terms of the GNU General Public License |
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8 | ;;; as published by the Free Software Foundation; either version 2 |
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9 | ;;; of the License, or (at your option) any later version. |
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10 | ;;; |
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11 | ;;; This program is distributed in the hope that it will be useful, |
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12 | ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
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13 | ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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14 | ;;; GNU General Public License for more details. |
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15 | ;;; |
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16 | ;;; You should have received a copy of the GNU General Public License |
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17 | ;;; along with this program; if not, write to the Free Software |
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18 | ;;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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19 | |
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20 | (in-package "SYSTEM") |
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21 | |
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22 | (require 'clos) |
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23 | |
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24 | (defmacro define-condition (name (&rest parent-types) (&rest slot-specs) |
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25 | &body options) |
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26 | (let ((parent-types (or parent-types '(condition)))) |
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27 | (setf parent-types (mapcar #'(lambda (sym) (find-class sym)) parent-types)) |
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28 | `(progn |
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29 | (std-finalize-inheritance (%define-condition ',name ',parent-types |
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30 | ',slot-specs ',options)) |
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31 | ',name))) |
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32 | |
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33 | (defun make-condition (type &rest initargs) |
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34 | (or (%make-condition type initargs) |
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35 | (make-instance (find-class type) initargs))) |
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