| 1 | /* |
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| 2 | * Debug.java |
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| 3 | * |
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| 4 | * Copyright (C) 2002-2003 Peter Graves |
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| 5 | * $Id: Debug.java 12524 2010-03-11 15:49:05Z mevenson $ |
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| 6 | * |
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| 7 | * This program is free software; you can redistribute it and/or |
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| 8 | * modify it under the terms of the GNU General Public License |
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| 9 | * as published by the Free Software Foundation; either version 2 |
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| 10 | * of the License, or (at your option) any later version. |
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| 11 | * |
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| 12 | * This program is distributed in the hope that it will be useful, |
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 15 | * GNU General Public License for more details. |
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| 16 | * |
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| 17 | * You should have received a copy of the GNU General Public License |
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| 18 | * along with this program; if not, write to the Free Software |
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| 19 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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| 20 | * |
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| 21 | * As a special exception, the copyright holders of this library give you |
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| 22 | * permission to link this library with independent modules to produce an |
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| 23 | * executable, regardless of the license terms of these independent |
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| 24 | * modules, and to copy and distribute the resulting executable under |
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| 25 | * terms of your choice, provided that you also meet, for each linked |
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| 26 | * independent module, the terms and conditions of the license of that |
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| 27 | * module. An independent module is a module which is not derived from |
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| 28 | * or based on this library. If you modify this library, you may extend |
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| 29 | * this exception to your version of the library, but you are not |
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| 30 | * obligated to do so. If you do not wish to do so, delete this |
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| 31 | * exception statement from your version. |
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| 32 | */ |
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| 33 | |
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| 34 | package org.armedbear.lisp; |
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| 35 | |
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| 36 | import static org.armedbear.lisp.Lisp.*; |
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| 37 | |
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| 38 | public final class Debug |
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| 39 | { |
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| 40 | |
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| 41 | public static final void assertTrue(boolean b) |
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| 42 | { |
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| 43 | if (!b) { |
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| 44 | String msg = "ABCL Debug.assertTrue() assertion failed!"; |
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| 45 | System.err.println(msg); |
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| 46 | Error e = new Error(msg); |
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| 47 | e.printStackTrace(); |
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| 48 | throw e; |
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| 49 | } |
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| 50 | } |
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| 51 | |
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| 52 | // Does not throw an exception. |
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| 53 | public static void bug() |
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| 54 | { |
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| 55 | trace(new Exception("BUG!")); |
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| 56 | } |
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| 57 | |
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| 58 | public static final void trace(String s) |
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| 59 | { |
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| 60 | System.err.println(s); |
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| 61 | } |
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| 62 | |
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| 63 | public static final void trace(Throwable t) |
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| 64 | { |
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| 65 | t.printStackTrace(); |
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| 66 | } |
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| 67 | |
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| 68 | public static final Symbol _DEBUG_WARN_ |
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| 69 | = exportSpecial("*DEBUG-WARN*", PACKAGE_SYS, NIL); |
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| 70 | |
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| 71 | public static void setDebugWarnings(boolean flag) { |
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| 72 | if (flag) { |
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| 73 | _DEBUG_WARN_.setSymbolValue(T); |
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| 74 | } else { |
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| 75 | _DEBUG_WARN_.setSymbolValue(NIL); |
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| 76 | } |
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| 77 | } |
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| 78 | |
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| 79 | public static final void warn(String s) { |
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| 80 | if (_DEBUG_WARN_.getSymbolValue() != null) { |
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| 81 | trace(s); |
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| 82 | } |
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| 83 | } |
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| 84 | } |
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