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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Copyright (c) 2015-2015 Andreas Heigl<[email protected]>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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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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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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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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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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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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                 * @author    Andreas Heigl<[email protected]>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @copyright 2015-2015 Andreas Heigl/callingallpapers.com  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @license   http://www.opensource.org/licenses/mit-license.php MIT-License  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @version   0.0  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @since     06.03.2012  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @link      http://github.com/joindin/callingallpapers  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace Callingallpapers\Parser\PapercallIo;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Callingallpapers\Entity\Cfp;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Callingallpapers\Parser\EventDetailParserInterface;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use DateTimeImmutable;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use DOMDocument;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use DOMNode;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use DOMXPath;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use InvalidArgumentException;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class ClosingDate implements EventDetailParserInterface  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected $timezone;  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    public function __construct($timezone = 'UTC')  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    { | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $this->timezone = new \DateTimezone($timezone);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function parse(DOMDocument $dom, DOMNode $node, Cfp $cfp) : Cfp  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $xpath = new DOMXPath($node->ownerDocument);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $closingDate = $xpath->query(".//time/@datetime", $node); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (! $closingDate || $closingDate->length == 0) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            throw new InvalidArgumentException('The CfP does not seem to have a closing date'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $closingDate = $closingDate->item(0)->textContent;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $cfp->dateEnd = new DateTimeImmutable($closingDate);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $cfp->dateEnd = $cfp->dateEnd->setTimezone($this->timezone);  | 
            
                            
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                        return $cfp;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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Our type inference engine has found a suspicous assignment of a value to a property. This check raises an issue when a value that can be of a mixed type is assigned to a property that is type hinted more strictly.
For example, imagine you have a variable
$accountIdthat can either hold an Id object or false (if there is no account id yet). Your code now assigns that value to theidproperty of an instance of theAccountclass. This class holds a proper account, so the id value must no longer be false.Either this assignment is in error or a type check should be added for that assignment.