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Pull Request — master (#41)
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unknown
01:36
created

FlatMap::flatMap()   A

↳ Parent: FlatMap

Complexity

Conditions 3
Paths 3

Size

Total Lines 15

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
dl 0
loc 15
rs 9.7666
c 0
b 0
f 0
cc 3
nc 3
nop 1
1 
<?php
2 

            


            
                                                                                                            
                            
            
                                    
            
            

                
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namespace Cocur\Chain\Link;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use Cocur\Chain\Chain;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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/**

            


            
                                                                                                            
                            
            
                                    
            
            

                
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 * FlatMap.

            


            
                                                                                                            
                            
            
                                    
            
            

                
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 *

            


            
                                                                                                            
                            
            
                                    
            
            

                
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 * @author    Nicolas Reynis

            


            
                                                                                                            
                            
            
                                    
            
            

                
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 */

            


            
                                                                                                            
                            
            
                                    
            
            

                
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trait FlatMap

            


            
                                                                                                            
                            
            
                                    
            
            

                
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{

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    /**

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * @return Chain

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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     */

            


            
                                                        
            
                                    
            
            

                
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    public function flatMap(callable $callback)

            


            
                                                        
            
                                    
            
            

                
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    {

            


            
                                                        
            
                                    
            
            

                
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        $flattened = [];

            


            
                                                        
            
                                    
            
            

                
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        foreach ($this->array as $index => $element) {

            


                            

                    
                        
                    
                    
                    
                    
                                                                                                    
                        

                            
                            
0 ignored issues

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            Bug
    
    
    
        introduced 
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The property array does not exist. Did you maybe forget to declare it?
                                                                                                

                    
                                            

                            

                            

                                
                                    
                                
                            


                            
In PHP it is possible to write to properties without declaring them. For example,
the following is perfectly valid PHP code:


class MyClass { }

$x = new MyClass();
$x->foo = true;





Generally, it is a good practice to explictly declare properties to avoid
accidental typos and provide IDE auto-completion:


class MyClass {
    public $foo;
}

$x = new MyClass();
$x->foo = true;





                        

                                                    

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            $transformation = $callback($element, $index);

            


            
                                                        
            
                                    
            
            

                
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            if (is_array($transformation)) {

            


            
                                                        
            
                                    
            
            

                
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                array_push($flattened, ...$transformation);

            


            
                                                        
            
                                    
            
            

                
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            } else {

            


            
                                                        
            
                                    
            
            

                
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                $flattened[] = $transformation;

            


            
                                                        
            
                                    
            
            

                
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            }

            


            
                                                        
            
                                    
            
            

                
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        }

            


            
                                                        
            
                                    
            
            

                
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        $this->array = $flattened;

            


            
                                                        
            
                                    
            
            

                
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        return $this;

            


            
                                                        
            
                                    
            
            

                
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    }

            


            
                                                        
            
                                    
            
            

                
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}

            


            
                                                        
            
                                    
            
            

                
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