[790] | 1 | /* |
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| 2 | * ORXONOX - the hottest 3D action shooter ever to exist |
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[1505] | 3 | * > www.orxonox.net < |
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[790] | 4 | * |
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| 5 | * |
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| 6 | * License notice: |
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| 7 | * |
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| 8 | * This program is free software; you can redistribute it and/or |
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| 9 | * modify it under the terms of the GNU General Public License |
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| 10 | * as published by the Free Software Foundation; either version 2 |
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| 11 | * of the License, or (at your option) any later version. |
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| 12 | * |
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| 13 | * This program is distributed in the hope that it will be useful, |
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| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 16 | * GNU General Public License for more details. |
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| 17 | * |
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| 18 | * You should have received a copy of the GNU General Public License |
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| 19 | * along with this program; if not, write to the Free Software |
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| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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| 21 | * |
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| 22 | * Author: |
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| 23 | * Fabian 'x3n' Landau |
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| 24 | * Co-authors: |
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| 25 | * ... |
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| 26 | * |
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| 27 | */ |
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| 28 | |
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[871] | 29 | /** |
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[2171] | 30 | @file |
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[790] | 31 | @brief Implementation of the Identifier class. |
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| 32 | */ |
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| 33 | |
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[1505] | 34 | #include "Identifier.h" |
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| 35 | |
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| 36 | #include <ostream> |
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| 37 | |
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[3280] | 38 | #include "util/StringUtils.h" |
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[9667] | 39 | #include "core/CoreIncludes.h" |
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[9563] | 40 | #include "core/config/ConfigValueContainer.h" |
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| 41 | #include "core/XMLPort.h" |
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| 42 | #include "core/object/ClassFactory.h" |
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[790] | 43 | |
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| 44 | namespace orxonox |
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| 45 | { |
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[10624] | 46 | bool Identifier::initConfigValues_s = true; |
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| 47 | |
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[790] | 48 | // ############################### |
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| 49 | // ### Identifier ### |
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| 50 | // ############################### |
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| 51 | /** |
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| 52 | @brief Constructor: No factory, no object created, new ObjectList and a unique networkID. |
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| 53 | */ |
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[10624] | 54 | Identifier::Identifier(const std::string& name, Factory* factory, bool bLoadable) |
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[790] | 55 | { |
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[10624] | 56 | orxout(verbose, context::identifier) << "Create identifier for " << name << endl; |
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| 57 | |
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| 58 | static unsigned int classIDCounter = 0; |
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| 59 | |
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| 60 | this->classID_ = classIDCounter++; |
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| 61 | this->name_ = name; |
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| 62 | this->factory_ = factory; |
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| 63 | this->bLoadable_ = bLoadable; |
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[9667] | 64 | this->bInitialized_ = false; |
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[10624] | 65 | this->bIsVirtualBase_ = false; |
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[1505] | 66 | |
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| 67 | this->bHasConfigValues_ = false; |
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[790] | 68 | |
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[5781] | 69 | // Default network ID is the class ID |
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| 70 | this->networkID_ = this->classID_; |
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[790] | 71 | } |
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| 72 | |
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| 73 | /** |
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[871] | 74 | @brief Destructor: Deletes the list containing the children. |
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[790] | 75 | */ |
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| 76 | Identifier::~Identifier() |
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| 77 | { |
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[1747] | 78 | if (this->factory_) |
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| 79 | delete this->factory_; |
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| 80 | |
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[11071] | 81 | for (const InheritsFrom* manualDirectParent : this->manualDirectParents_) |
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| 82 | delete manualDirectParent; |
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[10624] | 83 | |
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| 84 | // erase this Identifier from all related identifiers |
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[11071] | 85 | for (const Identifier* parent : this->parents_) |
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| 86 | const_cast<Identifier*>(parent)->children_.erase(this); |
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| 87 | for (const Identifier* directParent : this->directParents_) |
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| 88 | const_cast<Identifier*>(directParent)->directChildren_.erase(this); |
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| 89 | for (const Identifier* child : this->children_) |
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| 90 | const_cast<Identifier*>(child)->parents_.remove(this); |
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| 91 | for (const Identifier* directChild : this->directChildren_) |
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| 92 | const_cast<Identifier*>(directChild)->directParents_.remove(this); |
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[10624] | 93 | |
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[11071] | 94 | for (const auto& mapEntry : this->configValues_) |
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| 95 | delete (mapEntry.second); |
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| 96 | for (const auto& mapEntry : this->xmlportParamContainers_) |
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| 97 | delete (mapEntry.second); |
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| 98 | for (const auto& mapEntry : this->xmlportObjectContainers_) |
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| 99 | delete (mapEntry.second); |
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[790] | 100 | } |
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| 101 | |
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[1856] | 102 | |
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[1747] | 103 | /** |
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[790] | 104 | @brief Creates an object of the type the Identifier belongs to. |
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| 105 | @return The new object |
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| 106 | */ |
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[9667] | 107 | Identifiable* Identifier::fabricate(Context* context) |
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[790] | 108 | { |
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| 109 | if (this->factory_) |
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| 110 | { |
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[9667] | 111 | return this->factory_->fabricate(context); |
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[790] | 112 | } |
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| 113 | else |
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| 114 | { |
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[8858] | 115 | orxout(user_error) << "An error occurred in Identifier.cc:" << endl; |
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| 116 | orxout(user_error) << "Cannot fabricate an object of type '" << this->name_ << "'. Class has no factory." << endl; |
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| 117 | orxout(user_error) << "Aborting..." << endl; |
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[790] | 118 | abort(); |
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[11071] | 119 | return nullptr; |
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[790] | 120 | } |
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| 121 | } |
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| 122 | |
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| 123 | /** |
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[5929] | 124 | @brief Sets the network ID to a new value and changes the entry in the ID-Identifier-map. |
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[5781] | 125 | */ |
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| 126 | void Identifier::setNetworkID(uint32_t id) |
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| 127 | { |
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| 128 | this->networkID_ = id; |
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[10624] | 129 | IdentifierManager::getInstance().addIdentifier(this); // add with new id |
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[5781] | 130 | } |
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| 131 | |
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| 132 | /** |
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[9667] | 133 | * @brief Used to define the direct parents of an Identifier of an abstract class. |
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| 134 | */ |
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[10624] | 135 | Identifier& Identifier::inheritsFrom(InheritsFrom* directParent) |
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[9667] | 136 | { |
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[10624] | 137 | if (this->directParents_.empty()) |
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| 138 | this->manualDirectParents_.push_back(directParent); |
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[9667] | 139 | else |
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[10624] | 140 | orxout(internal_error) << "Trying to manually add direct parent of " << this->getName() << " after the latter was already initialized" << endl; |
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[9667] | 141 | |
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| 142 | return *this; |
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| 143 | } |
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| 144 | |
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| 145 | /** |
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| 146 | * @brief Initializes the parents of this Identifier while creating the class hierarchy. |
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[10624] | 147 | * @param initializationTrace All identifiers that were recorded while creating an instance of this class (including nested classes and this identifier itself) |
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[9667] | 148 | */ |
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[10624] | 149 | void Identifier::initializeParents(const std::list<const Identifier*>& initializationTrace) |
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[9667] | 150 | { |
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| 151 | if (!IdentifierManager::getInstance().isCreatingHierarchy()) |
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| 152 | { |
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| 153 | orxout(internal_warning) << "Identifier::initializeParents() created outside of class hierarchy creation" << endl; |
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| 154 | return; |
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| 155 | } |
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| 156 | |
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[10624] | 157 | if (this->directParents_.empty()) |
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[9667] | 158 | { |
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[11071] | 159 | for (const Identifier* identifier : initializationTrace) |
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| 160 | if (identifier != this) |
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| 161 | this->parents_.push_back(identifier); |
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[9667] | 162 | } |
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[10624] | 163 | else |
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| 164 | orxout(internal_error) << "Trying to add parents to " << this->getName() << " after it was already initialized with manual calls to inheritsFrom<Class>()." << endl; |
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[9667] | 165 | } |
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| 166 | |
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| 167 | /** |
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| 168 | * @brief Finishes the initialization of this Identifier after creating the class hierarchy by wiring the (direct) parent/child references correctly. |
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| 169 | */ |
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| 170 | void Identifier::finishInitialization() |
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| 171 | { |
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| 172 | if (!IdentifierManager::getInstance().isCreatingHierarchy()) |
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| 173 | { |
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| 174 | orxout(internal_warning) << "Identifier::finishInitialization() created outside of class hierarchy creation" << endl; |
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| 175 | return; |
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| 176 | } |
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| 177 | |
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| 178 | if (this->isInitialized()) |
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| 179 | return; |
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| 180 | |
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[10624] | 181 | if (!this->parents_.empty()) |
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| 182 | { |
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| 183 | // parents defined -> this class was initialized by creating a sample instance and recording the trace of identifiers |
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| 184 | |
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| 185 | // initialize all parents |
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[11071] | 186 | for (const Identifier* parent : this->parents_) |
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| 187 | const_cast<Identifier*>(parent)->finishInitialization(); // initialize parent |
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[10624] | 188 | |
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| 189 | // parents of parents are no direct parents of this identifier |
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[9667] | 190 | this->directParents_ = this->parents_; |
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[11071] | 191 | for (const Identifier* parent : this->parents_) |
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| 192 | for (const Identifier* parent_parent : const_cast<Identifier*>(parent)->parents_) |
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| 193 | this->directParents_.remove(parent_parent); |
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[9667] | 194 | |
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[10624] | 195 | this->verifyIdentifierTrace(); |
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| 196 | } |
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| 197 | else if (!this->manualDirectParents_.empty()) |
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[9667] | 198 | { |
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[10624] | 199 | // no parents defined -> this class was manually initialized by calling inheritsFrom<Class>() |
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| 200 | |
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| 201 | // initialize all direct parents |
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[11071] | 202 | for (const InheritsFrom* manualDirectParent : this->manualDirectParents_) |
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[10624] | 203 | { |
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[11071] | 204 | Identifier* directParent = manualDirectParent->getParent(); |
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[10624] | 205 | this->directParents_.push_back(directParent); |
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| 206 | directParent->finishInitialization(); // initialize parent |
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| 207 | } |
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| 208 | |
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| 209 | // direct parents and their parents are also parents of this identifier (but only add them once) |
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[11071] | 210 | for (const Identifier* parent : this->directParents_) |
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[10624] | 211 | { |
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[11071] | 212 | for (const Identifier* parent_parent : const_cast<Identifier*>(parent)->parents_) |
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| 213 | this->addIfNotExists(this->parents_, parent_parent); |
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| 214 | this->addIfNotExists(this->parents_, parent); |
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[10624] | 215 | } |
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[9667] | 216 | } |
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[10624] | 217 | else if (!this->isExactlyA(Class(Identifiable))) |
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| 218 | { |
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| 219 | // only Identifiable is allowed to have no parents (even tough it's currently not abstract) |
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| 220 | orxout(internal_error) << "Identifier " << this->getName() << " / " << this->getTypeInfo().name() << " is marked as abstract but has no direct parents defined" << endl; |
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| 221 | orxout(internal_error) << " If this class is not abstract, use RegisterClass(ThisClass);" << endl; |
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| 222 | orxout(internal_error) << " If this class is abstract, use RegisterAbstractClass(ThisClass).inheritsFrom(Class(BaseClass));" << endl; |
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| 223 | } |
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[9667] | 224 | |
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| 225 | // tell all parents that this identifier is a child |
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[11071] | 226 | for (const Identifier* parent : this->parents_) |
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| 227 | const_cast<Identifier*>(parent)->children_.insert(this); |
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[9667] | 228 | |
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| 229 | // tell all direct parents that this identifier is a direct child |
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[11071] | 230 | for (const Identifier* directChild : this->directParents_) |
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[9667] | 231 | { |
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[11071] | 232 | const_cast<Identifier*>(directChild)->directChildren_.insert(this); |
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[9667] | 233 | |
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| 234 | // Create the super-function dependencies |
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[11071] | 235 | directChild->createSuperFunctionCaller(); |
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[9667] | 236 | } |
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| 237 | |
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| 238 | this->bInitialized_ = true; |
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| 239 | } |
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| 240 | |
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| 241 | /** |
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[10624] | 242 | * Resets all information about the class hierarchy. The identifier is considered uninitialized afterwards. |
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| 243 | */ |
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| 244 | void Identifier::reset() |
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| 245 | { |
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| 246 | this->directParents_.clear(); |
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| 247 | this->parents_.clear(); |
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| 248 | this->directChildren_.clear(); |
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| 249 | this->children_.clear(); |
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| 250 | this->bInitialized_ = false; |
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| 251 | } |
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| 252 | |
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| 253 | /** |
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| 254 | * Verifies if the recorded trace of parent identifiers matches the expected trace according to the class hierarchy. If it doesn't match, the class |
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| 255 | * hierarchy is likely wrong, e.g. due to wrong inheritsFrom<>() definitions in abstract classes. |
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| 256 | */ |
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| 257 | void Identifier::verifyIdentifierTrace() const |
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| 258 | { |
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| 259 | |
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| 260 | std::list<const Identifier*> expectedIdentifierTrace; |
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| 261 | |
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| 262 | // if any parent class is virtual, it will be instantiated first, so we need to add them first. |
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[11071] | 263 | for (const Identifier* parent : this->parents_) |
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[10624] | 264 | { |
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[11071] | 265 | if (parent->isVirtualBase()) |
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[10624] | 266 | { |
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[11071] | 267 | for (const Identifier* parent_parent : const_cast<Identifier*>(parent)->parents_) |
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| 268 | this->addIfNotExists(expectedIdentifierTrace, parent_parent); |
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| 269 | this->addIfNotExists(expectedIdentifierTrace, parent); |
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[10624] | 270 | } |
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| 271 | } |
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| 272 | |
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| 273 | // now all direct parents get created recursively. already added identifiers (e.g. virtual base classes) are not added again. |
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[11071] | 274 | for (const Identifier* directParent : this->directParents_) |
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[10624] | 275 | { |
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[11071] | 276 | for (const Identifier* parent_parent : const_cast<Identifier*>(directParent)->parents_) |
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| 277 | this->addIfNotExists(expectedIdentifierTrace, parent_parent); |
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| 278 | this->addIfNotExists(expectedIdentifierTrace, directParent); |
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[10624] | 279 | } |
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| 280 | |
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| 281 | // check if the expected trace matches the actual trace (which was defined by creating a sample instance) |
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| 282 | if (expectedIdentifierTrace != this->parents_) |
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| 283 | { |
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| 284 | orxout(internal_warning) << this->getName() << " has an unexpected initialization trace:" << endl; |
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| 285 | |
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| 286 | orxout(internal_warning) << " Actual trace (after creating a sample instance):" << endl << " "; |
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[11071] | 287 | for (const Identifier* parent : this->parents_) |
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| 288 | orxout(internal_warning) << " " << parent->getName(); |
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[10624] | 289 | orxout(internal_warning) << endl; |
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| 290 | |
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| 291 | orxout(internal_warning) << " Expected trace (according to class hierarchy definitions):" << endl << " "; |
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[11071] | 292 | for (const Identifier* parent : expectedIdentifierTrace) |
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| 293 | orxout(internal_warning) << " " << parent->getName(); |
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[10624] | 294 | orxout(internal_warning) << endl; |
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| 295 | |
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| 296 | orxout(internal_warning) << " Direct parents (according to class hierarchy definitions):" << endl << " "; |
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[11071] | 297 | for (const Identifier* directParent : this->directParents_) |
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| 298 | orxout(internal_warning) << " " << directParent->getName(); |
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[10624] | 299 | orxout(internal_warning) << endl; |
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| 300 | } |
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| 301 | } |
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| 302 | |
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| 303 | /** |
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| 304 | * Adds @param identifierToAdd to @param list if this identifier is not already contained in the list. |
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| 305 | */ |
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| 306 | void Identifier::addIfNotExists(std::list<const Identifier*>& list, const Identifier* identifierToAdd) const |
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| 307 | { |
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| 308 | if (std::find(list.begin(), list.end(), identifierToAdd) == list.end()) |
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| 309 | list.push_back(identifierToAdd); |
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| 310 | } |
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| 311 | |
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| 312 | /** |
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[871] | 313 | @brief Returns true, if the Identifier is at least of the given type. |
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[790] | 314 | @param identifier The identifier to compare with |
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| 315 | */ |
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| 316 | bool Identifier::isA(const Identifier* identifier) const |
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| 317 | { |
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[10624] | 318 | return (identifier == this || (this->isChildOf(identifier))); |
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[790] | 319 | } |
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| 320 | |
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| 321 | /** |
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[871] | 322 | @brief Returns true, if the Identifier is exactly of the given type. |
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[790] | 323 | @param identifier The identifier to compare with |
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| 324 | */ |
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[871] | 325 | bool Identifier::isExactlyA(const Identifier* identifier) const |
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[790] | 326 | { |
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| 327 | return (identifier == this); |
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| 328 | } |
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| 329 | |
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| 330 | /** |
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[871] | 331 | @brief Returns true, if the assigned identifier is a child of the given identifier. |
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[790] | 332 | @param identifier The identifier to compare with |
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| 333 | */ |
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| 334 | bool Identifier::isChildOf(const Identifier* identifier) const |
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| 335 | { |
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[10624] | 336 | return (std::find(this->parents_.begin(), this->parents_.end(), identifier) != this->parents_.end()); |
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[1505] | 337 | } |
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[790] | 338 | |
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| 339 | /** |
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[1505] | 340 | @brief Returns true, if the assigned identifier is a direct child of the given identifier. |
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| 341 | @param identifier The identifier to compare with |
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| 342 | */ |
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| 343 | bool Identifier::isDirectChildOf(const Identifier* identifier) const |
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| 344 | { |
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[10624] | 345 | return (std::find(this->directParents_.begin(), this->directParents_.end(), identifier) != this->directParents_.end()); |
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[1505] | 346 | } |
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| 347 | |
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| 348 | /** |
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[871] | 349 | @brief Returns true, if the assigned identifier is a parent of the given identifier. |
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[790] | 350 | @param identifier The identifier to compare with |
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| 351 | */ |
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| 352 | bool Identifier::isParentOf(const Identifier* identifier) const |
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| 353 | { |
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[5929] | 354 | return (this->children_.find(identifier) != this->children_.end()); |
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[1505] | 355 | } |
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| 356 | |
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| 357 | /** |
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| 358 | @brief Returns true, if the assigned identifier is a direct parent of the given identifier. |
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| 359 | @param identifier The identifier to compare with |
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| 360 | */ |
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| 361 | bool Identifier::isDirectParentOf(const Identifier* identifier) const |
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| 362 | { |
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[5929] | 363 | return (this->directChildren_.find(identifier) != this->directChildren_.end()); |
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[1505] | 364 | } |
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| 365 | |
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| 366 | /** |
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| 367 | @brief Adds the ConfigValueContainer of a variable, given by the string of its name. |
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| 368 | @param varname The name of the variablee |
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| 369 | @param container The container |
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| 370 | */ |
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| 371 | void Identifier::addConfigValueContainer(const std::string& varname, ConfigValueContainer* container) |
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| 372 | { |
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| 373 | std::map<std::string, ConfigValueContainer*>::const_iterator it = this->configValues_.find(varname); |
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| 374 | if (it != this->configValues_.end()) |
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| 375 | { |
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[8858] | 376 | orxout(internal_warning) << "Overwriting config-value with name " << varname << " in class " << this->getName() << '.' << endl; |
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[1747] | 377 | delete (it->second); |
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[1505] | 378 | } |
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| 379 | |
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| 380 | this->bHasConfigValues_ = true; |
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| 381 | this->configValues_[varname] = container; |
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| 382 | } |
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| 383 | |
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| 384 | /** |
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| 385 | @brief Returns the ConfigValueContainer of a variable, given by the string of its name. |
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| 386 | @param varname The name of the variable |
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| 387 | @return The ConfigValueContainer |
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| 388 | */ |
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| 389 | ConfigValueContainer* Identifier::getConfigValueContainer(const std::string& varname) |
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| 390 | { |
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| 391 | std::map<std::string, ConfigValueContainer*>::const_iterator it = configValues_.find(varname); |
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| 392 | if (it != configValues_.end()) |
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[5929] | 393 | return it->second; |
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[1505] | 394 | else |
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[11071] | 395 | return nullptr; |
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[1505] | 396 | } |
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| 397 | |
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| 398 | /** |
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[5781] | 399 | @brief Returns a XMLPortParamContainer that loads a parameter of this class. |
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| 400 | @param paramname The name of the parameter |
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| 401 | @return The container |
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| 402 | */ |
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| 403 | XMLPortParamContainer* Identifier::getXMLPortParamContainer(const std::string& paramname) |
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| 404 | { |
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| 405 | std::map<std::string, XMLPortParamContainer*>::const_iterator it = this->xmlportParamContainers_.find(paramname); |
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| 406 | if (it != this->xmlportParamContainers_.end()) |
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[5929] | 407 | return it->second; |
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[5781] | 408 | else |
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[11071] | 409 | return nullptr; |
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[5781] | 410 | } |
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| 411 | |
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| 412 | /** |
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| 413 | @brief Adds a new XMLPortParamContainer that loads a parameter of this class. |
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| 414 | @param paramname The name of the parameter |
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| 415 | @param container The container |
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| 416 | */ |
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| 417 | void Identifier::addXMLPortParamContainer(const std::string& paramname, XMLPortParamContainer* container) |
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| 418 | { |
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| 419 | std::map<std::string, XMLPortParamContainer*>::const_iterator it = this->xmlportParamContainers_.find(paramname); |
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| 420 | if (it != this->xmlportParamContainers_.end()) |
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| 421 | { |
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[8858] | 422 | orxout(internal_warning) << "Overwriting XMLPortParamContainer in class " << this->getName() << '.' << endl; |
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[5781] | 423 | delete (it->second); |
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| 424 | } |
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| 425 | |
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| 426 | this->xmlportParamContainers_[paramname] = container; |
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| 427 | } |
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| 428 | |
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| 429 | /** |
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| 430 | @brief Returns a XMLPortObjectContainer that attaches an object to this class. |
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| 431 | @param sectionname The name of the section that contains the attachable objects |
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| 432 | @return The container |
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| 433 | */ |
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| 434 | XMLPortObjectContainer* Identifier::getXMLPortObjectContainer(const std::string& sectionname) |
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| 435 | { |
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| 436 | std::map<std::string, XMLPortObjectContainer*>::const_iterator it = this->xmlportObjectContainers_.find(sectionname); |
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| 437 | if (it != this->xmlportObjectContainers_.end()) |
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[5929] | 438 | return it->second; |
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[5781] | 439 | else |
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[11071] | 440 | return nullptr; |
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[5781] | 441 | } |
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| 442 | |
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| 443 | /** |
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| 444 | @brief Adds a new XMLPortObjectContainer that attaches an object to this class. |
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| 445 | @param sectionname The name of the section that contains the attachable objects |
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| 446 | @param container The container |
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| 447 | */ |
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| 448 | void Identifier::addXMLPortObjectContainer(const std::string& sectionname, XMLPortObjectContainer* container) |
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| 449 | { |
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| 450 | std::map<std::string, XMLPortObjectContainer*>::const_iterator it = this->xmlportObjectContainers_.find(sectionname); |
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| 451 | if (it != this->xmlportObjectContainers_.end()) |
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| 452 | { |
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[8858] | 453 | orxout(internal_warning) << "Overwriting XMLPortObjectContainer in class " << this->getName() << '.' << endl; |
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[5781] | 454 | delete (it->second); |
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| 455 | } |
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| 456 | |
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| 457 | this->xmlportObjectContainers_[sectionname] = container; |
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| 458 | } |
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| 459 | |
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| 460 | /** |
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[1505] | 461 | @brief Lists the names of all Identifiers in a std::set<const Identifier*>. |
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| 462 | @param out The outstream |
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| 463 | @param list The list (or set) of Identifiers |
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| 464 | @return The outstream |
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| 465 | */ |
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| 466 | std::ostream& operator<<(std::ostream& out, const std::set<const Identifier*>& list) |
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| 467 | { |
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| 468 | for (std::set<const Identifier*>::const_iterator it = list.begin(); it != list.end(); ++it) |
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[5929] | 469 | { |
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| 470 | if (it != list.begin()) |
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[6417] | 471 | out << ' '; |
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[5929] | 472 | out << (*it)->getName(); |
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| 473 | } |
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[1505] | 474 | |
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| 475 | return out; |
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| 476 | } |
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[790] | 477 | } |
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