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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace Softonic\GraphQL;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Softonic\GraphQL\Config\MutationTypeConfig;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Softonic\GraphQL\DataObjects\Mutation\Collection as MutationCollection;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Softonic\GraphQL\DataObjects\Mutation\Item as MutationItem;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Softonic\GraphQL\DataObjects\Mutation\MutationObject;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Softonic\GraphQL\DataObjects\Query\Collection as QueryCollection;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Softonic\GraphQL\DataObjects\Query\Item as QueryItem;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Softonic\GraphQL\DataObjects\Query\QueryObject;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class Mutation  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    const SOURCE_ROOT_PATH = '.';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @var array  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private static $config;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @var bool  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private static $hasChanged;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @var MutationTypeConfig  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private static $mutationTypeConfig;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param array<MutationTypeConfig> $config  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public static function build(array $config, QueryObject $source, bool $fromMutation = false): MutationObject  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        static::$config     = $config;  | 
            
                            
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                        static::$hasChanged = $fromMutation;  | 
            
                            
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                        $mutationVariables = [];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        foreach (static::$config as $variableName => $mutationTypeConfig) { | 
            
                            
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                            static::$mutationTypeConfig = $mutationTypeConfig;  | 
            
                            
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                            $path                       = self::SOURCE_ROOT_PATH;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $config                     = $mutationTypeConfig->get($path);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            if ($config->type === MutationCollection::class) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $arguments = [];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                foreach ($source as $sourceItem) { | 
            
                            
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                                    $mutationItemArguments = static::generateMutationArguments($sourceItem, $path);  | 
            
                            
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                                    $arguments[] = new MutationItem($mutationItemArguments, $config->children, static::$hasChanged);  | 
            
                            
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                                }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $mutationVariables[$variableName] = new $config->type(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    $arguments,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    $config->children,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    static::$hasChanged  | 
            
                            
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                                );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            } else { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $arguments = static::generateMutationArguments($source, $path);  | 
            
                            
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                                $mutationVariables[$variableName] = new $config->type(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    $arguments,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    $config->children,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    static::$hasChanged  | 
            
                            
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                                );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return new MutationItem($mutationVariables, static::$config, static::$hasChanged);  | 
            
                            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                             96                          | 
                
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                    private static function generateMutationArguments(QueryItem $source, string $path): array  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $arguments = [];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        foreach ($source as $sourceKey => $sourceValue) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $childPath   = static::createPathFromParent($path, $sourceKey);  | 
            
                            
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                            $childConfig = static::$mutationTypeConfig->get($childPath);  | 
            
                            
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                            if (is_null($childConfig)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                break;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                             96                          | 
                
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                            if ($sourceValue instanceof QueryObject) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                if ($sourceValue instanceof QueryCollection) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    $arguments[$sourceKey] = static::mutateChild($childConfig, $sourceValue, $childPath);  | 
            
                            
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                                } else { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    $mutationItemArguments = static::generateMutationArguments($sourceValue, $childPath);  | 
            
                            
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                                    $arguments[$sourceKey] = new MutationItem(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                        $mutationItemArguments,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                        $childConfig->children,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                             74                          | 
                
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                                        static::$hasChanged  | 
            
                            
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                                    );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                             96                          | 
                
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                            } elseif ($childConfig->type === MutationTypeConfig::SCALAR_DATA_TYPE) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                             96                          | 
                
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                                $arguments[$sourceKey] = $sourceValue;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                             96                          | 
                
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                        return $arguments;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                             96                          | 
                
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                    private static function createPathFromParent(string $parent, string $child): string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                             96                          | 
                
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                        return ('.' === $parent) ? ".{$child}" : "{$parent}.{$child}"; | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                             74                          | 
                
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                    private static function mutateChild(  | 
            
            
                                                        
            
                                    
            
            
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                        MutationTypeConfig $config,  | 
            
            
                                                        
            
                                    
            
            
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                        QueryCollection $sourceCollection,  | 
            
            
                                                        
            
                                    
            
            
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                        string $path  | 
            
            
                                                        
            
                                    
            
            
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                    ): MutationObject { | 
            
            
                                                        
            
                                    
            
            
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                             74                          | 
                
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                        $arguments = [];  | 
            
            
                                                        
            
                                    
            
            
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                             74                          | 
                
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                        if (is_null($config->linksTo)) { | 
            
            
                                                        
            
                                    
            
            
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                             66                          | 
                
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                            foreach ($config->children as $key => $childConfig) { | 
            
            
                                                        
            
                                    
            
            
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                             66                          | 
                
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                                $childPath       = static::createPathFromParent($path, $key);  | 
            
                            
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                             66                          | 
                
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                                $arguments[$key] = static::mutateChild($childConfig, $sourceCollection, $childPath);  | 
            
                            
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                            }  | 
            
            
                                                        
            
                                    
            
            
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                        } else { | 
            
            
                                                        
            
                                    
            
            
                | 
                    120
                 | 
                                    
                             74                          | 
                
                 | 
                            foreach ($sourceCollection as $sourceItem) { | 
            
            
                                                        
            
                                    
            
            
                | 
                    121
                 | 
                                    
                             72                          | 
                
                 | 
                                $itemArguments = static::generateMutationArguments($sourceItem, $path);  | 
            
                            
                    | 
                        
                     | 
                     | 
                     | 
                    
                                                                                                    
                        
                         
                                                                                        
                                                                                     
                     | 
                
            
                                                        
            
                                    
            
            
                | 
                    122
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                        
            
                                    
            
            
                | 
                    123
                 | 
                                    
                             72                          | 
                
                 | 
                                $arguments[] = new MutationItem($itemArguments, $config->children, static::$hasChanged);  | 
            
                            
                    | 
                        
                     | 
                     | 
                     | 
                    
                                                                                                    
                        
                         
                                                                                        
                                                                                     
                     | 
                
            
                                                        
            
                                    
            
            
                | 
                    124
                 | 
                                    
                                                     | 
                
                 | 
                            }  | 
            
            
                                                        
            
                                    
            
            
                | 
                    125
                 | 
                                    
                                                     | 
                
                 | 
                        }  | 
            
            
                                                        
            
                                    
            
            
                | 
                    126
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                        
            
                                    
            
            
                | 
                    127
                 | 
                                    
                             74                          | 
                
                 | 
                        return new $config->type($arguments, $config->children, static::$hasChanged);  | 
            
                            
                    | 
                        
                     | 
                     | 
                     | 
                    
                                                                                                    
                        
                         
                                                                                        
                                                                                     
                     | 
                
            
                                                        
            
                                    
            
            
                | 
                    128
                 | 
                                    
                                                     | 
                
                 | 
                    }  | 
            
            
                                                        
            
                                    
            
            
                | 
                    129
                 | 
                                    
                                                     | 
                
                 | 
                }  | 
            
            
                                                        
            
                                    
            
            
                | 
                    130
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                        
Let’s assume you have a class which uses late-static binding:
The code above will run fine in your PHP runtime. However, if you now create a sub-class and call the
getSomeVariable()on that sub-class, you will receive a runtime error:In the case above, it makes sense to update
SomeClassto useselfinstead: