mirror of https://github.com/axmolengine/axmol.git
134 lines
4.4 KiB
C++
134 lines
4.4 KiB
C++
/****************************************************************************
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Copyright (c) 2010-2012 cocos2d-x.org
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Copyright (c) 2013-2014 Chukong Technologies
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http://www.cocos2d-x.org
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#include "CCObject.h"
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#include "CCAutoreleasePool.h"
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#include "ccMacros.h"
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#include "CCScriptSupport.h"
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NS_CC_BEGIN
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Object::Object()
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: _luaID(0)
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, _referenceCount(1) // when the object is created, the reference count of it is 1
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{
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static unsigned int uObjectCount = 0;
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_ID = ++uObjectCount;
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}
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Object::~Object()
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{
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// if the object is referenced by Lua engine, remove it
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if (_luaID)
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{
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ScriptEngineManager::getInstance()->getScriptEngine()->removeScriptObjectByObject(this);
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}
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else
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{
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ScriptEngineProtocol* pEngine = ScriptEngineManager::getInstance()->getScriptEngine();
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if (pEngine != NULL && pEngine->getScriptType() == kScriptTypeJavascript)
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{
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pEngine->removeScriptObjectByObject(this);
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}
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}
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}
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Object* Object::autorelease()
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{
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PoolManager::getInstance()->getCurrentPool()->addObject(this);
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return this;
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}
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void Object::release()
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{
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CCASSERT(_referenceCount > 0, "reference count should greater than 0");
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--_referenceCount;
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if (_referenceCount == 0)
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{
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#if defined(COCOS2D_DEBUG) && (COCOS2D_DEBUG > 0)
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auto poolManager = PoolManager::getInstance();
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if (!poolManager->getCurrentPool()->isClearing() && poolManager->isObjectInPools(this))
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{
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// Trigger an assert if the reference count is 0 but the object is still in autorelease pool.
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// This happens when 'autorelease/release' were not used in pairs with 'new/retain'.
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//
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// Wrong usage (1):
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//
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// auto obj = Node::create(); // Ref = 1, but it's an autorelease object which means it was in the autorelease pool.
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// obj->autorelease(); // Wrong: If you wish to invoke autorelease several times, you should retain `obj` first.
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//
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// Wrong usage (2):
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//
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// auto obj = Node::create();
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// obj->release(); // Wrong: obj is an autorelease object, it will be released when clearing current pool.
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//
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// Correct usage (1):
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//
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// auto obj = Node::create();
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// |- new Node(); // `new` is the pair of the `autorelease` of next line
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// |- autorelease(); // The pair of `new Node`.
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//
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// obj->retain();
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// obj->autorelease(); // This `autorelease` is the pair of `retain` of previous line.
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//
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// Correct usage (2):
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//
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// auto obj = Node::create();
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// obj->retain();
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// obj->release(); // This `release` is the pair of `retain` of previous line.
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CCASSERT(false, "The reference shouldn't be 0 because it is still in autorelease pool.");
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}
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#endif
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delete this;
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}
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}
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bool Object::isSingleReference() const
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{
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return _referenceCount == 1;
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}
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unsigned int Object::getReferenceCount() const
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{
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return _referenceCount;
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}
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bool Object::isEqual(const Object *object)
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{
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return this == object;
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}
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void Object::acceptVisitor(DataVisitor &visitor)
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{
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visitor.visitObject(this);
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}
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NS_CC_END
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