Mercurial > love-experiments

annotate src/common/Module.cpp @ 1117:3c6206da8bcf

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Add Module::registerInstance() and Module::getInstance(). Module::registerInstance() registers a module instance which can later be retrieved using Module::getInstance(). registerInstance() is called in luax_register_module(). getInstance() expects the full name (as returned by Module::getName()) of the requested module.
author vrld <vrld@vrld.org>
date Sun, 05 Aug 2012 16:03:37 +0200
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children 05f0d0e44cd5
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3c6206da8bcf Add Module::registerInstance() and Module::getInstance().
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1 /**
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2 * Copyright (c) 2006-2012 LOVE Development Team
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3 *
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4 * This software is provided 'as-is', without any express or implied
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5 * warranty. In no event will the authors be held liable for any damages
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6 * arising from the use of this software.
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7 *
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8 * Permission is granted to anyone to use this software for any purpose,
3c6206da8bcf Add Module::registerInstance() and Module::getInstance().
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9 * including commercial applications, and to alter it and redistribute it
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10 * freely, subject to the following restrictions:
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11 *
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12 * 1. The origin of this software must not be misrepresented; you must not
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13 * claim that you wrote the original software. If you use this software
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14 * in a product, an acknowledgment in the product documentation would be
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15 * appreciated but is not required.
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16 * 2. Altered source versions must be plainly marked as such, and must not be
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17 * misrepresented as being the original software.
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18 * 3. This notice may not be removed or altered from any source distribution.
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19 **/
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20
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21 // LOVE
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22 #include "Module.h"
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23 #include "Exception.h"
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24
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25 // std
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26 #include <map>
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27 #include <utility>
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28 #include <string>
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29
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30 namespace
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31 {
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32 std::map<std::string, love::Module*> registry;
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33 } // anonymous namespace
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34
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35 namespace love
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36 {
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37 void Module::registerInstance(Module *instance)
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38 {
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39 if (instance == NULL)
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40 throw Exception("Module instance is NULL");
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41
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42 std::string name(instance->getName());
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43
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44 std::map<std::string, Module*>::iterator it = registry.find(name);
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45 if (registry.end() != it)
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46 throw Exception("Module %s already registered!", instance->getName());
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47
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48 registry.insert(make_pair(name, instance));
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49 }
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50
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51 Module *Module::getInstance(const char *name)
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52 {
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53 std::map<std::string, Module*>::iterator it = registry.find(std::string(name));
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54
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55 if (registry.end() == it)
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56 return NULL;
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57
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58 return it->second;
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59 }
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60 } // namespace love