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/vendor/symfony/http-kernel/ControllerMetadata/ -> ArgumentMetadata.php (source)

   1  <?php
   2  
   3  /*
   4   * This file is part of the Symfony package.
   5   *
   6   * (c) Fabien Potencier <fabien@symfony.com>
   7   *
   8   * For the full copyright and license information, please view the LICENSE
   9   * file that was distributed with this source code.
  10   */
  11  
  12  namespace Symfony\Component\HttpKernel\ControllerMetadata;
  13  
  14  /**
  15   * Responsible for storing metadata of an argument.
  16   *
  17   * @author Iltar van der Berg <kjarli@gmail.com>
  18   */
  19  class ArgumentMetadata
  20  {
  21      private $name;
  22      private $type;
  23      private $isVariadic;
  24      private $hasDefaultValue;
  25      private $defaultValue;
  26      private $isNullable;
  27  
  28      /**
  29       * @param string $name
  30       * @param string $type
  31       * @param bool   $isVariadic
  32       * @param bool   $hasDefaultValue
  33       * @param mixed  $defaultValue
  34       * @param bool   $isNullable
  35       */
  36      public function __construct($name, $type, $isVariadic, $hasDefaultValue, $defaultValue, $isNullable = false)
  37      {
  38          $this->name = $name;
  39          $this->type = $type;
  40          $this->isVariadic = $isVariadic;
  41          $this->hasDefaultValue = $hasDefaultValue;
  42          $this->defaultValue = $defaultValue;
  43          $this->isNullable = $isNullable || null === $type || ($hasDefaultValue && null === $defaultValue);
  44      }
  45  
  46      /**
  47       * Returns the name as given in PHP, $foo would yield "foo".
  48       *
  49       * @return string
  50       */
  51      public function getName()
  52      {
  53          return $this->name;
  54      }
  55  
  56      /**
  57       * Returns the type of the argument.
  58       *
  59       * The type is the PHP class in 5.5+ and additionally the basic type in PHP 7.0+.
  60       *
  61       * @return string|null
  62       */
  63      public function getType()
  64      {
  65          return $this->type;
  66      }
  67  
  68      /**
  69       * Returns whether the argument is defined as "...$variadic".
  70       *
  71       * @return bool
  72       */
  73      public function isVariadic()
  74      {
  75          return $this->isVariadic;
  76      }
  77  
  78      /**
  79       * Returns whether the argument has a default value.
  80       *
  81       * Implies whether an argument is optional.
  82       *
  83       * @return bool
  84       */
  85      public function hasDefaultValue()
  86      {
  87          return $this->hasDefaultValue;
  88      }
  89  
  90      /**
  91       * Returns whether the argument accepts null values.
  92       *
  93       * @return bool
  94       */
  95      public function isNullable()
  96      {
  97          return $this->isNullable;
  98      }
  99  
 100      /**
 101       * Returns the default value of the argument.
 102       *
 103       * @throws \LogicException if no default value is present; {@see self::hasDefaultValue()}
 104       *
 105       * @return mixed
 106       */
 107      public function getDefaultValue()
 108      {
 109          if (!$this->hasDefaultValue) {
 110              throw new \LogicException(sprintf('Argument $%s does not have a default value. Use "%s::hasDefaultValue()" to avoid this exception.', $this->name, __CLASS__));
 111          }
 112  
 113          return $this->defaultValue;
 114      }
 115  }


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