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Test Failed
Push — master ( ecd78b...d05c81 )
by Kirill
02:43
created

ValueNode   A

↳ Parent: Project

Complexity

Total Complexity 2

Size/Duplication

Total Lines 18
Duplicated Lines 0 %

Coupling/Cohesion

Components 0
Dependencies 1

Importance

Changes 0
Metric Value
dl 0
loc 18
rs 10
c 0
b 0
f 0
wmc 2
lcom 0
cbo 1

2 Methods

Rating   Name   Duplication   Size   Complexity  
A unpack() 0 4 1
A getInnerValue() 0 4 1
1 
<?php
2 
/**
3 
 * This file is part of Railt package.
4 
 *
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 * For the full copyright and license information, please view the LICENSE
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 * file that was distributed with this source code.
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 */
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declare(strict_types=1);
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namespace Railt\SDL\Frontend\AST\Invocation;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use Railt\Parser\Ast\NodeInterface;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use Railt\Parser\Ast\Rule;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use Railt\SDL\Frontend\IR\Value\ValueInterface;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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/**

            


            
                                                                                                            
                            
            
                                    
            
            

                
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 * Class ValueNode

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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 */

            


            
                                                                        
                            
            
                                    
            
            

                
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class ValueNode extends Rule implements AstValueInterface

            


            
                                                                        
                            
            
                                    
            
            

                
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{

            


            
                                                                        
                            
            
                                    
            
            

                
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    /**

            


            
                                                                        
                            
            
                                    
            
            

                
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     * @return ValueInterface

            


            
                                                                        
                            
            
                                    
            
            

                
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     */

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    public function unpack(): ValueInterface

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        return $this->getInnerValue()->unpack();

            


                            

                    
                        
                    
                    
                    
                    
                                                                                                    
                        

                            
                            
0 ignored issues

                            –
                            show
                        


                        

                                                                                        




    

        
            Bug
    
    
    
        introduced 
                            by 
            

        

        

            
        

        

            

                

                    
                
                
            


        

    

    

        
                        

                            
                                
                            
                        

                                        
The method unpack does only exist in Railt\SDL\Frontend\AST\I...ation\AstValueInterface, but not in Railt\Parser\Ast\NodeInterface.
                                                                                                                                                                                                        

                    
                                            

                            

                            

                                
                                    
                                
                            


                            
It seems like the method you are trying to call exists only in some of the
possible types.


Let’s take a look at an example:


class A
{
    public function foo() { }
}

class B extends A
{
    public function bar() { }
}

/**
 * @param A|B $x
 */
function someFunction($x)
{
    $x->foo(); // This call is fine as the method exists in A and B.
    $x->bar(); // This method only exists in B and might cause an error.
}







Available Fixes


  1. Add an additional type-check:
    

    /**
 * @param A|B $x
 */
function someFunction($x)
{
    $x->foo();

    if ($x instanceof B) {
        $x->bar();
    }
}

    

    

    2. 

  2. Only allow a single type to be passed if the variable comes from a parameter:
    

    function someFunction(B $x) { /** ... */ }

    

    

    3. 



                        

                                                    

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    }

            


            
                                                                        
                            
            
                                    
            
            

                
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    /**

            


            
                                                                        
                            
            
                                    
            
            

                
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     * @return AstValueInterface|NodeInterface

            


            
                                                                        
                            
            
                                    
            
            

                
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     */

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    private function getInnerValue(): AstValueInterface

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        return $this->getChild(0);

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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    }

            


            
                                                        
            
                                    
            
            

                
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}

            


            
                                                        
            
                                    
            
            

                
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