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proc
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thread-self
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proc
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self
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root
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proc
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root
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opt
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php54
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Symfony
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Component
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Form
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Extension
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Core
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DataTransformer
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<?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\Form\Extension\Core\DataTransformer; use Symfony\Component\Form\DataTransformerInterface; use Symfony\Component\Form\Exception\TransformationFailedException; /** * Passes a value through multiple value transformers * * @author Bernhard Schussek <bschussek@gmail.com> */ class DataTransformerChain implements DataTransformerInterface { /** * The value transformers * @var DataTransformerInterface[] */ protected $transformers; /** * Uses the given value transformers to transform values * * @param array $transformers */ public function __construct(array $transformers) { $this->transformers = $transformers; } /** * Passes the value through the transform() method of all nested transformers * * The transformers receive the value in the same order as they were passed * to the constructor. Each transformer receives the result of the previous * transformer as input. The output of the last transformer is returned * by this method. * * @param mixed $value The original value * * @return mixed The transformed value * * @throws TransformationFailedException */ public function transform($value) { foreach ($this->transformers as $transformer) { $value = $transformer->transform($value); } return $value; } /** * Passes the value through the reverseTransform() method of all nested * transformers * * The transformers receive the value in the reverse order as they were passed * to the constructor. Each transformer receives the result of the previous * transformer as input. The output of the last transformer is returned * by this method. * * @param mixed $value The transformed value * * @return mixed The reverse-transformed value * * @throws TransformationFailedException */ public function reverseTransform($value) { for ($i = count($this->transformers) - 1; $i >= 0; --$i) { $value = $this->transformers[$i]->reverseTransform($value); } return $value; } }
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