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NoValueMonad::getInstance()   A
last analyzed

↳ Parent: NoValueMonad

Complexity

Conditions 2
Paths 2

Size

Total Lines 7
Code Lines 3

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 4
CRAP Score 2

Importance

Changes 1
Bugs 0 Features 1
Metric Value
cc 2
eloc 3
c 1
b 0
f 1
nc 2
nop 0
dl 0
loc 7
ccs 4
cts 4
cp 1
crap 2
rs 10
1 
<?php
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namespace Smoren\PartialIntersection\Util;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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/**

            


            
                                                                                                            
                            
            
                                    
            
            

                
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 * Based on IterTools PHP's IteratorFactory.

            


            
                                                                                                            
                            
            
                                    
            
            

                
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 * @see https://github.com/markrogoyski/itertools-php

            


            
                                                                                                            
                            
            
                                    
            
            

                
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 * @see https://github.com/markrogoyski/itertools-php/blob/main/src/Util/NoValueMonad.php

            


            
                                                                                                            
                            
            
                                    
            
            

                
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 */

            


            
                                                                                                            
                            
            
                                    
            
            

                
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class NoValueMonad

            


            
                                                                                                            
                            
            
                                    
            
            

                
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{

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    private static ?self $instance = null;

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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    public static function getInstance(): self

            


            
                                                                        
                            
            
                                    
            
            

                
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    {

            


            
                                                                        
                            
            
                                    
            
            

                
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        if (self::$instance === null) {

            


            
                                                                        
                            
            
                                    
            
            

                
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            self::$instance = new self();

            


            
                                                                        
                            
            
                                    
            
            

                
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        }

            


            
                                                                        
                            
            
                                    
            
            

                
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        return self::$instance;

            


                            

                    
                        
                    
                    
                    
                    
                                                                                                    
                        

                            
                            
0 ignored issues

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The expression return self::instance could return the type null which is incompatible with the type-hinted return Smoren\PartialIntersection\Util\NoValueMonad. Consider adding an additional type-check to rule them out.
                                                                                                                                                                                                        

                    
                                                    

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    }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    private function __construct()

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    }

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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}

            


            
                                                        
            
                                    
            
            

                
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