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by Paweł
11:43
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Collection::makeSureNotEmpty()   A

↳ Parent: Collection

Complexity

Conditions 2
Paths 2

Size

Total Lines 4
Code Lines 2

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 3
CRAP Score 2

Importance

Changes 0
Metric Value
eloc 2
c 0
b 0
f 0
dl 0
loc 4
ccs 3
cts 3
cp 1
rs 10
cc 2
nc 2
nop 0
crap 2
1 
<?php
2 

            


            
                                                                                                            
                            
            
                                    
            
            

                
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declare(strict_types=1);

            


            
                                                                                                            
                            
            
                                    
            
            

                
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namespace AardsGerds\Game\Shared;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use function Lambdish\Phunctional\first;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use function Lambdish\Phunctional\all;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use function Lambdish\Phunctional\instance_of;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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abstract class Collection implements \IteratorAggregate, \Countable

            


            
                                                                                                            
                            
            
                                    
            
            

                
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{

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    protected array $items;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    final public function __construct(iterable $items)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        $this->items = $items instanceof \Traversable ? iterator_to_array($items) : $items;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        $this->assertType();

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    public function getItems(): array

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        return $this->items;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    public function count(): int

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        return count($this->items);

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    public function isEmpty(): bool

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        return count($this->items) < 1;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    }

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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    public function makeSureNotEmpty(): void

            


            
                                                                        
                            
            
                                    
            
            

                
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    {

            


            
                                                                        
                            
            
                                    
            
            

                
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        if ($this->isEmpty()) {

            


            
                                                                        
                            
            
                                    
            
            

                
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            throw CollectionException::emptyCollection();

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    public function filter(callable $filter): static

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        return new static(array_filter($this->items, $filter));

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    public function getIterator(): \ArrayIterator

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        return new \ArrayIterator($this->items);

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    abstract protected function getType(): string;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    private function assertType(): void

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        $type = $this->getType();

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        if (!all(instance_of($type), $this->items)) {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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            throw CollectionException::invalidType(get_class(first($this->items)), $type);

            


                            

                    
                        
                    
                    
                    
                    
                                                                                                    
                        

                            
                            
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            Bug
    
    
    
        introduced 
                            by 
            

        

        

            
        

        

            

                

                    
                
                
            


        

    

    

        
                        

                            
                        

                                        
It seems like first($this->items) can also be of type null; however, parameter $object of get_class() does only seem to accept object, maybe add an additional type check?
                                                                                                                                                                                           (
                                     Ignorable by Annotation
                                )
                                

                                    
 If this is a false-positive, you can also ignore this issue in your code via the ignore-type   annotation

                                    

                                        

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            throw CollectionException::invalidType(get_class(/** @scrutinizer ignore-type */ first($this->items)), $type);

                                        

                                                                            

                                

                                                                                                                                                                                                                                                                                        

                    
                                                    

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        }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    }

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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}

            


            
                                                        
            
                                    
            
            

                
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