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annotate mde/exception.d @ 26:611f7b9063c6

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Changed the licensing and removed a few dead files. Changed licensing to "GPL version 2 or later" to avoid future compatibility issues. Also a unittest fix to the previous commit. committer: Diggory Hardy <diggory.hardy@gmail.com>
author Diggory Hardy <diggory.hardy@gmail.com>
date Thu, 03 Apr 2008 18:15:02 +0100
parents 2c28ee04a4ed
children f985c28c0ec9
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5f90774ea1ef Applied the GNU GPL v2 to mde.
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1 /* LICENSE BLOCK
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2 Part of mde: a Modular D game-oriented Engine
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3 Copyright © 2007-2008 Diggory Hardy
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4
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5 This program is free software: you can redistribute it and/or modify it under the terms
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6 of the GNU General Public License as published by the Free Software Foundation, either
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7 version 2 of the License, or (at your option) any later version.
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8
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9 This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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10 without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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11 See the GNU General Public License for more details.
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12
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13 You should have received a copy of the GNU General Public License
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14 along with this program. If not, see <http://www.gnu.org/licenses/>. */
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16 /// Contains the base class for all mde exceptions plus some exception classes.
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17 module mde.exception;
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18
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19 /** Base class for all mde Exceptions.
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20 *
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21 * All packages should have their own base exception type extending this one, and for each package
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22 * level a CTOR taking a message should pass the message to the super.
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23 * A CTOR not taking a message and calling the super without a parameter may also be provided.
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24 *
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25 * The static string symbol
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26 * should be overriden as below so that it ends up as something like "mde.file" or
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27 * "mde.pkg.file.Class" describing where the exception was thrown. (Since only methods overload
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28 * correctly, symbol is made static and an overloadable method is used to access the correct symbol.)
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29 */
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30 class mdeException : Exception {
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31 /// Override in derived classes to name the module where the error occured.
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32 char[] getSymbol () {
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33 return "mde";
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34 }
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35 /// Prefix msg, e.g.: "mde.foo: message"
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36 char[] prefixedMsg () {
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37 return getSymbol() ~ ": " ~ msg;
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38 }
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39 this (char[] msg) {
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40 super(msg);
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41 }
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42 this () { // No supplied error message.
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43 super("");
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44 }
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45 }
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9a990644948c Many changes: upgraded to tango 0.99.4, reorganised mde/input, large changes to mde/mergetag and mde/init, separated off test/MTTest.d and more.
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47 /// Thrown when loading options fails.
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48 class optionsLoadException : mdeException {
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49 char[] getSymbol () {
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50 return super.getSymbol ~ ".options";
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51 }
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53 this (char[] msg) {
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54 super(msg);
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55 }
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56 }
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58 /// Thrown when loading strings for the requested name and current locale fails.
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59 class L10nLoadException : mdeException {
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60 char[] getSymbol () {
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61 return super.getSymbol ~ ".i18n.I18nTranslation";
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62 }
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64 this (char[] msg) {
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65 super(msg);
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66 }
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67 }
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69 debug (mdeUnitTest) {
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70 import tango.util.log.Log : Log, Logger;
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72 private Logger logger;
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73 static this() {
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74 logger = Log.getLogger ("mde.exception");
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75 }
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77 unittest {
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78 // Check message prepending works correctly.
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79 mdeException mE = new optionsLoadException("");
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80 assert (mE.getSymbol() == "mde.options", mE.getSymbol());
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81 try {
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82 throw new mdeException ("ABC");
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83 assert (false);
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84 } catch (mdeException e) {
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85 assert (e.msg == "ABC", e.msg);
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86 assert (e.prefixedMsg == "mde: ABC", e.prefixedMsg);
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87 }
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89 logger.info ("Unittest complete.");
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90 }
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91 }