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Pull Request — master (#15)
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03:53
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MaxComplexityQueryVisitor::visit()   A

↳ Parent: MaxComplexityQueryVisitor

Complexity

Conditions 4
Paths 8

Size

Total Lines 12
Code Lines 9

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 8
CRAP Score 4.0218

Importance

Changes 2
Bugs 0 Features 0
Metric Value
c 2
b 0
f 0
dl 0
loc 12
rs 9.2
ccs 8
cts 9
cp 0.8889
cc 4
eloc 9
nc 8
nop 3
crap 4.0218
1 
<?php
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namespace Youshido\GraphQL\Execution\Visitor;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use Youshido\GraphQL\Config\Field\FieldConfig;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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class MaxComplexityQueryVisitor extends AbstractQueryVisitor {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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  public $maxScore;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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  protected $defaultScore = 1;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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  public function __construct($max) {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    parent::__construct();

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    $this->maxScore = $max;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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  }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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  /**

            


            
                                                                                                            
                            
            
                                    
            
            

                
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   * @param array       $args

            


            
                                                                                                            
                            
            
                                    
            
            

                
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   * @param FieldConfig $fieldConfig

            


            
                                                                                                            
                            
            
                                    
            
            

                
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   * @param int         $childScore

            


            
                                                                                                            
                            
            
                                    
            
            

                
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   *

            


            
                                                                                                            
                            
            
                                    
            
            

                
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   * @return mixed

            


            
                                                                                                            
                            
            
                                    
            
            

                
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   * @throws \Exception

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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   */

            


            
                                                        
            
                                    
            
            

                
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  public function visit(array $args, FieldConfig $fieldConfig, $childScore = 0) {

            


            
                                                        
            
                                    
            
            

                
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    $cost = $fieldConfig->get('cost');

            


            
                                                        
            
                                    
            
            

                
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    if (is_callable($cost)) {

            


            
                                                        
            
                                    
            
            

                
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      $cost = $cost($args, $fieldConfig, $childScore);

            


            
                                                        
            
                                    
            
            

                
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    }

            


            
                                                        
            
                                    
            
            

                
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    $cost = $cost ?: $this->defaultScore;

            


            
                                                        
            
                                    
            
            

                
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    $this->memo += $cost;

            


            
                                                        
            
                                    
            
            

                
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    if ($this->memo > $this->maxScore) {

            


            
                                                        
            
                                    
            
            

                
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      throw new \Exception('query exceeded max allowed complexity of ' . $this->maxScore);

            


            
                                                        
            
                                    
            
            

                
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    }

            


            
                                                        
            
                                    
            
            

                
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    return $cost;

            


            
                                                        
            
                                    
            
            

                
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  }

            


            
                                                        
            
                                    
            
            

                
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}