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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * AbstractDependencyHandler Class  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @package   BrightNucleus\Dependency  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @author    Alain Schlesser <[email protected]>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @license   GPL-2.0+  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @link      http://www.brightnucleus.com/  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @copyright 2015-2016 Alain Schlesser, Bright Nucleus  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace BrightNucleus\Dependency;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use BrightNucleus\Exception\InvalidArgumentException;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use BrightNucleus\Invoker\FunctionInvokerTrait;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Abstract dependency.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @since   0.1.0  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @package BrightNucleus\Dependency  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                 */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                abstract class AbstractDependencyHandler implements DependencyHandlerInterface { | 
            
            
                                                                        
                            
            
                                    
            
            
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                	use FunctionInvokerTrait;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 * Register the dependency's assets.  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 * @since 0.1.0  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 * @param array $args               Optional. Array of arguments that is  | 
            
                            
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                	 *                                  passed to the registration function.  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 * @throws InvalidArgumentException If the register function could not be  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 *                                  called.  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	public function register( $args = null ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$this->invokeFunction( $this->get_register_function(), $args );  | 
            
                            
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                	}  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 * Get the name of the function that is used for registering the dependency.  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 * @since 0.1.0  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 * @return string Function name.  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                	abstract protected function get_register_function();  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 * Enqueue the dependency's assets.  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 * @since 0.1.0  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 * @param array $args               Optional. Array of arguments that is  | 
            
                            
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                	 *                                  passed to the enqueueing function.  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 * @throws InvalidArgumentException If the register function could not be  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 *                                  called.  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	public function enqueue( $args = null ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$this->invokeFunction( $this->get_enqueue_function(), $args );  | 
            
                            
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                	}  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 * Get the name of the function that is used for enqueueing the dependency.  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 * @since 0.1.0  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 * @return string Function name.  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                	abstract protected function get_enqueue_function();  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 * Maybe enqueue a dependency that has been registered outside of the  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 * Dependency Manager.  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 * @since 0.2.3  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 * @param string $handle Handle of the dependency to enqueue.  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	public function maybe_enqueue( $handle ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		if ( $this->is_registered( $handle ) ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			$enqueue = $this->get_enqueue_function();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			$enqueue( $handle );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		}  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                	}  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 * Check whether a specific handle has been registered.  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 * @since 0.2.3  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 * @param string $handle The handle to check  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 * @return bool Whether it is registered or not.  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                	abstract protected function is_registered( $handle );  | 
            
            
                                                        
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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This check looks for
@paramannotations where the type inferred by our type inference engine differs from the declared type.It makes a suggestion as to what type it considers more descriptive. In addition it looks for parameters that have the generic type
arrayand suggests a stricter type likearray<String>.Most often this is a case of a parameter that can be null in addition to its declared types.