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   1  <?php
   2  
   3  declare(strict_types=1);
   4  
   5  namespace ProxyManager\ProxyGenerator\AccessInterceptorValueHolder\MethodGenerator;
   6  
   7  use ProxyManager\Generator\MagicMethodGenerator;
   8  use ProxyManager\ProxyGenerator\Util\GetMethodIfExists;
   9  use Zend\Code\Generator\ParameterGenerator;
  10  use ProxyManager\ProxyGenerator\AccessInterceptorValueHolder\MethodGenerator\Util\InterceptorGenerator;
  11  use ProxyManager\ProxyGenerator\PropertyGenerator\PublicPropertiesMap;
  12  use ProxyManager\ProxyGenerator\Util\PublicScopeSimulator;
  13  use ReflectionClass;
  14  use Zend\Code\Generator\PropertyGenerator;
  15  
  16  /**
  17   * Magic `__unset` for method interceptor value holder objects
  18   *
  19   * @author Marco Pivetta <ocramius@gmail.com>
  20   * @license MIT
  21   */
  22  class MagicUnset extends MagicMethodGenerator
  23  {
  24      /**
  25       * Constructor
  26       * @param ReflectionClass     $originalClass
  27       * @param PropertyGenerator   $valueHolder
  28       * @param PropertyGenerator   $prefixInterceptors
  29       * @param PropertyGenerator   $suffixInterceptors
  30       * @param PublicPropertiesMap $publicProperties
  31       *
  32       * @throws \Zend\Code\Generator\Exception\InvalidArgumentException
  33       * @throws \InvalidArgumentException
  34       */
  35      public function __construct(
  36          ReflectionClass $originalClass,
  37          PropertyGenerator $valueHolder,
  38          PropertyGenerator $prefixInterceptors,
  39          PropertyGenerator $suffixInterceptors,
  40          PublicPropertiesMap $publicProperties
  41      ) {
  42          parent::__construct($originalClass, '__unset', [new ParameterGenerator('name')]);
  43  
  44          $parent          = GetMethodIfExists::get($originalClass, '__unset');
  45          $valueHolderName = $valueHolder->getName();
  46  
  47          $callParent = PublicScopeSimulator::getPublicAccessSimulationCode(
  48              PublicScopeSimulator::OPERATION_UNSET,
  49              'name',
  50              'value',
  51              $valueHolder,
  52              'returnValue'
  53          );
  54  
  55          if (! $publicProperties->isEmpty()) {
  56              $callParent = 'if (isset(self::$' . $publicProperties->getName() . "[\$name])) {\n"
  57                  . '    unset($this->' . $valueHolderName . '->$name);'
  58                  . "\n} else {\n    $callParent\n}\n\n";
  59          }
  60  
  61          $callParent .= '$returnValue = false;';
  62  
  63          $this->setBody(InterceptorGenerator::createInterceptedMethodBody(
  64              $callParent,
  65              $this,
  66              $valueHolder,
  67              $prefixInterceptors,
  68              $suffixInterceptors,
  69              $parent
  70          ));
  71      }
  72  }