Configuration::getConfigTreeBuilder()   A
last analyzed

Complexity

Conditions 2
Paths 2

Size

Total Lines 25

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 19
CRAP Score 2

Importance

Changes 0
Metric Value
dl 0
loc 25
ccs 19
cts 19
cp 1
rs 9.52
c 0
b 0
f 0
cc 2
nc 2
nop 0
crap 2
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<?php
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namespace Basster\LegacyBridgeBundle\DependencyInjection;
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use Symfony\Component\Config\Definition\Builder\TreeBuilder;
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use Symfony\Component\Config\Definition\ConfigurationInterface;
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/**
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 * This is the class that validates and merges configuration from your app/config files.
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 *
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 * To learn more see {@link http://symfony.com/doc/current/cookbook/bundles/configuration.html}
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 */
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class Configuration implements ConfigurationInterface
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{
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    /** {@inheritdoc} */
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    public function getConfigTreeBuilder()
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    {
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        $treeBuilder = new TreeBuilder('basster_legacy_bridge');
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        $rootNode = method_exists($treeBuilder, 'getRootNode') 
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            ? $treeBuilder->getRootNode() 
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            : $treeBuilder->root('basster_legacy_bridge');
0 ignored issues
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Deprecated Code introduced by
The method Symfony\Component\Config...der\TreeBuilder::root() has been deprecated with message: since Symfony 4.3, pass the root name to the constructor instead

This method has been deprecated. The supplier of the class has supplied an explanatory message.

The explanatory message should give you some clue as to whether and when the method will be removed from the class and what other method or class to use instead.

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        $rootNode
0 ignored issues
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Bug introduced by
It seems like you code against a specific sub-type and not the parent class Symfony\Component\Config...\Builder\NodeDefinition as the method children() does only exist in the following sub-classes of Symfony\Component\Config...\Builder\NodeDefinition: Symfony\Component\Config...der\ArrayNodeDefinition. Maybe you want to instanceof check for one of these explicitly?

Let’s take a look at an example:

abstract class User
{
    /** @return string */
    abstract public function getPassword();
}

class MyUser extends User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}

In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different sub-classes of User which does not have a getDisplayName() method, the code will break.

Available Fixes

  1. Change the type-hint for the parameter:

    class AuthSystem
    {
        public function authenticate(MyUser $user) { /* ... */ }
    }
    
  2. Add an additional type-check:

    class AuthSystem
    {
        public function authenticate(User $user)
        {
            if ($user instanceof MyUser) {
                $this->logger->info(/** ... */);
            }
    
            // or alternatively
            if ( ! $user instanceof MyUser) {
                throw new \LogicException(
                    '$user must be an instance of MyUser, '
                   .'other instances are not supported.'
                );
            }
    
        }
    }
    
Note: PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case.
  1. Add the method to the parent class:

    abstract class User
    {
        /** @return string */
        abstract public function getPassword();
    
        /** @return string */
        abstract public function getDisplayName();
    }
    
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          ->children()
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          ->scalarNode('legacy_path')
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          ->defaultValue('/path/to/my/legacy/project/files')
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          ->end()
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          ->scalarNode('append_script')
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          ->info('optional append script (see http://php.net/manual/en/ini.core.php#ini.auto-append-file)')
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          ->defaultNull()
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          ->end()
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          ->scalarNode('prepend_script')
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          ->info('optional prepend script (see http://php.net/manual/en/ini.core.php#ini.auto-prepend-file)')
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          ->defaultNull()
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          ->end()
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          ->end()
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        ;
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        return $treeBuilder;
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    }
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}
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