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79da71ecf8
* symfony 5.4 (diff dev) * symfony 5.4 (working) * symfony 5.4 (update autoload) * symfony 5.4 (remove swiftmailer mailer implementation) * symfony 5.4 (php doc and split Global accessor class) ### Impacted packages: composer require php:">=7.2.5 <8.0.0" symfony/console:5.4.* symfony/dotenv:5.4.* symfony/framework-bundle:5.4.* symfony/twig-bundle:5.4.* symfony/yaml:5.4.* --update-with-dependencies composer require symfony/stopwatch:5.4.* symfony/web-profiler-bundle:5.4.* --dev --update-with-dependencies
41 lines
1.2 KiB
PHP
41 lines
1.2 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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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 Symfony\Component\HttpKernel\Controller\ArgumentResolver;
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use Symfony\Component\HttpFoundation\Request;
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use Symfony\Component\HttpKernel\Controller\ArgumentValueResolverInterface;
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use Symfony\Component\HttpKernel\ControllerMetadata\ArgumentMetadata;
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/**
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* Yields the default value defined in the action signature when no value has been given.
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*
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* @author Iltar van der Berg <kjarli@gmail.com>
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*/
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final class DefaultValueResolver implements ArgumentValueResolverInterface
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{
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/**
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* {@inheritdoc}
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*/
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public function supports(Request $request, ArgumentMetadata $argument): bool
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{
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return $argument->hasDefaultValue() || (null !== $argument->getType() && $argument->isNullable() && !$argument->isVariadic());
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}
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/**
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* {@inheritdoc}
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*/
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public function resolve(Request $request, ArgumentMetadata $argument): iterable
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{
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yield $argument->hasDefaultValue() ? $argument->getDefaultValue() : null;
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}
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}
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