Passed
Pull Request — master (#149)
by Pierre
03:06
created

Extended::create()   A

Complexity

Conditions 2
Paths 2

Size

Total Lines 17
Code Lines 10

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 8
CRAP Score 2.032

Importance

Changes 3
Bugs 0 Features 0
Metric Value
cc 2
eloc 10
c 3
b 0
f 0
nc 2
nop 2
dl 0
loc 17
ccs 8
cts 10
cp 0.8
crap 2.032
rs 9.9332
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<?php
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declare(strict_types=1);
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namespace Knp\DictionaryBundle\Dictionary\Factory;
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use InvalidArgumentException;
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use Knp\DictionaryBundle\Dictionary;
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use Knp\DictionaryBundle\Dictionary\Collection;
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use Knp\DictionaryBundle\Dictionary\Combined;
0 ignored issues
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Bug introduced by
This use statement conflicts with another class in this namespace, Knp\DictionaryBundle\Dictionary\Factory\Combined. Consider defining an alias.

Let?s assume that you have a directory layout like this:

.
|-- OtherDir
|   |-- Bar.php
|   `-- Foo.php
`-- SomeDir
    `-- Foo.php

and let?s assume the following content of Bar.php:

// Bar.php
namespace OtherDir;

use SomeDir\Foo; // This now conflicts the class OtherDir\Foo

If both files OtherDir/Foo.php and SomeDir/Foo.php are loaded in the same runtime, you will see a PHP error such as the following:

PHP Fatal error:  Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.php

However, as OtherDir/Foo.php does not necessarily have to be loaded and the error is only triggered if it is loaded before OtherDir/Bar.php, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias:

// Bar.php
namespace OtherDir;

use SomeDir\Foo as SomeDirFoo; // There is no conflict anymore.
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use Knp\DictionaryBundle\Dictionary\Factory;
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final class Extended implements Factory
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{
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    /**
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     * @var Dictionary\Factory
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     */
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    private $factory;
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    /**
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     * @var Dictionary\Collection
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     */
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    private $dictionaries;
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    public function __construct(Factory $factory, Collection $dictionaries)
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    {
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        $this->factory      = $factory;
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        $this->dictionaries = $dictionaries;
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    }
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    public function create(string $name, array $config): Dictionary
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    {
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        if (!$this->factory->supports($config)) {
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            throw new InvalidArgumentException(sprintf(
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                'The dictionary with named "%s" cannot be created.',
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                $name
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            ));
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        }
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        $extends = $config['extends'];
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        unset($config['extends']);
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        return new Combined(
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            $name,
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            $this->dictionaries[$extends],
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            $this->factory->create($name, $config)
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        );
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    }
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    public function supports(array $config): bool
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    {
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        return isset($config['extends']);
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    }
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}
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