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Completed
Pull Request — master (#132)
by Simone
03:13
created

ResourcesValidator::validate()   B

↳ Parent: ResourcesValidator

Complexity

Conditions 3
Paths 3

Size

Total Lines 24
Code Lines 16

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 8
CRAP Score 3

Importance

Changes 0
Metric Value
dl 0
loc 24
ccs 8
cts 8
cp 1
rs 8.9713
c 0
b 0
f 0
cc 3
eloc 16
nc 3
nop 1
crap 3
1 
<?php
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/**

            


            
                                                                                                            
                            
            
                                    
            
            

                
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 * This file is part of sensorario/resources repository

            


            
                                                                                                            
                            
            
                                    
            
            

                
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 *

            


            
                                                                                                            
                            
            
                                    
            
            

                
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 * (c) Simone Gentili <[email protected]> *

            


            
                                                                                                            
                            
            
                                    
            
            

                
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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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namespace Sensorario\Resources\Validators;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use Sensorario\Container\Container;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use Sensorario\Resources\Resource;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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final class ResourcesValidator

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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{

            


            
                                                        
            
                                    
            
            

                
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    public function validate(Resource $resource)

            


            
                                                        
            
                                    
            
            

                
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    {

            


            
                                                        
            
                                    
            
            

                
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                             38                         
                
                
                
        $container = ValidatorContainer::load();

            


            
                                                        
            
                                    
            
            

                
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        $validators = [

            


            
                                                        
            
                                    
            
            

                
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                             38                         
                
                
                
            'right.type',

            


            
                                                        
            
                                    
            
            

                
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            'mandatory.conditional',

            


            
                                                        
            
                                    
            
            

                
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            'mandatory.property',

            


            
                                                        
            
                                    
            
            

                
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            'mandatory.without.default',

            


            
                                                        
            
                                    
            
            

                
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            'allowed.properties',

            


            
                                                        
            
                                    
            
            

                
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            'allowed.values',

            


            
                                                        
            
                                    
            
            

                
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            'rewrite.values',

            


            
                                                        
            
                                    
            
            

                
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            'allowed.ranges',

            


            
                                                        
            
                                    
            
            

                
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            'right.type',

            


            
                                                        
            
                                    
            
            

                
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        ];

            


            
                                                        
            
                                    
            
            

                
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        foreach ($validators as $name) {

            


            
                                                        
            
                                    
            
            

                
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            if ($container->contains($name)) {

            


            
                                                        
            
                                    
            
            

                
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                $validator = $container->get($name);

            


            
                                                        
            
                                    
            
            

                
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            }

            


            
                                                        
            
                                    
            
            

                
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            $validator->check($resource);

            


                            

                    
                        
                    
                    
                    
                    
                                                                                                    
                        

                            
                            
0 ignored issues

                            –
                            show
                        


                        

                                                                                        




    

        
            Bug
    
    
    
        introduced 
                            by 
            

        

        

            
        

        

            

                

                    
                
                
            


        

    

    

        
                        

                            
                                
                            
                        

                                        
The variable $validator does not seem to be defined for all execution paths leading up to this point.
                                                                                                

                    
                                            

                            

                            

                                
                                    
                                
                            


                            
If you define a variable conditionally, it can happen that it is not defined
for all execution paths.


Let’s take a look at an example:


function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}





In the above example, the variable $x is defined if you pass “foo” or “bar”
as argument for $a. However, since the switch statement has no default
case statement, if you pass any other value, the variable $x would be undefined.




Available Fixes


  1. Check for existence of the variable explicitly:
    

    function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    if (isset($x)) { // Make sure it's always set.
        echo $x;
    }
}

    

    

    2. 

  2. Define a default value for the variable:
    

    function myFunction($a) {
    $x = ''; // Set a default which gets overridden for certain paths.
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    echo $x;
}

    

    

    3. 

  3. Add a value for the missing path:
    

    function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;

        // We add support for the missing case.
        default:
            $x = '';
            break;
    }

    echo $x;
}

    

    

    4. 



                        

                                                    

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        }

            


            
                                                        
            
                                    
            
            

                
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    }

            


            
                                                        
            
                                    
            
            

                
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}

            


            
                                                        
            
                                    
            
            

                
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