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Surrogate::isValidBlock()   A
last analyzed

↳ Parent: Surrogate

Complexity

Conditions 1
Paths 1

Size

Total Lines 10
Code Lines 6

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
c 0
b 0
f 0
dl 0
loc 10
rs 9.4285
cc 1
eloc 6
nc 1
nop 1
1 
<?php
2 

            


            
                                                                                                            
                            
            
                                    
            
            

                
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namespace UCD\Unicode;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use UCD\Unicode\Character\Properties\General;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use UCD\Unicode\Character\Properties\General\Block;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use UCD\Exception\InvalidArgumentException;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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class Surrogate extends NonCharacter

            


            
                                                                                                            
                            
            
                                    
            
            

                
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{

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    /**

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * @param Codepoint $codepoint

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * @param General $generalProperties

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * @throws InvalidArgumentException

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     */

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    public function __construct(Codepoint $codepoint, General $generalProperties)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        if (!$this->isValidBlock($generalProperties->getBlock())) {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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            throw new InvalidArgumentException('Surrogate should reside within a surrogate block');

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        parent::__construct($codepoint, $generalProperties);

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    /**

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * @param Block $block

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * @return bool

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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     */

            


            
                                                        
            
                                    
            
            

                
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    private function isValidBlock(Block $block)

            


            
                                                        
            
                                    
            
            

                
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    {

            


            
                                                        
            
                                    
            
            

                
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        static $valid = [

            


            
                                                        
            
                                    
            
            

                
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            Block::HIGH_PRIVATE_USE_SURROGATES => true,

            


            
                                                        
            
                                    
            
            

                
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            Block::HIGH_SURROGATES => true,

            


            
                                                        
            
                                    
            
            

                
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            Block::LOW_SURROGATES => true

            


            
                                                        
            
                                    
            
            

                
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        ];

            


            
                                                        
            
                                    
            
            

                
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        return array_key_exists($block->getValue(), $valid);

            


            
                                                        
            
                                    
            
            

                
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    }

            


            
                                                        
            
                                    
            
            

                
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}