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   1  <?php
   2  /*
   3   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   4   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   5   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   6   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   7   * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   8   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   9   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  10   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  11   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  12   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  13   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  14   *
  15   * This software consists of voluntary contributions made by many individuals
  16   * and is licensed under the MIT license.
  17   */
  18  
  19  namespace ProxyManager\ProxyGenerator\LazyLoadingValueHolder\MethodGenerator;
  20  
  21  use ProxyManager\Generator\MagicMethodGenerator;
  22  use ProxyManager\Generator\ParameterGenerator;
  23  use ProxyManager\ProxyGenerator\PropertyGenerator\PublicPropertiesMap;
  24  use ProxyManager\ProxyGenerator\Util\PublicScopeSimulator;
  25  use ReflectionClass;
  26  use Zend\Code\Generator\PropertyGenerator;
  27  
  28  /**
  29   * Magic `__unset` method for lazy loading value holder objects
  30   *
  31   * @author Marco Pivetta <ocramius@gmail.com>
  32   * @license MIT
  33   */
  34  class MagicUnset extends MagicMethodGenerator
  35  {
  36      /**
  37       * Constructor
  38       */
  39      public function __construct(
  40          ReflectionClass $originalClass,
  41          PropertyGenerator $initializerProperty,
  42          PropertyGenerator $valueHolderProperty,
  43          PublicPropertiesMap $publicProperties
  44      ) {
  45          parent::__construct($originalClass, '__unset', array(new ParameterGenerator('name')));
  46  
  47          $initializer = $initializerProperty->getName();
  48          $valueHolder = $valueHolderProperty->getName();
  49          $callParent  = '';
  50  
  51          $this->setDocblock(($originalClass->hasMethod('__isset') ? "{@inheritDoc}\n" : '') . '@param string $name');
  52  
  53          if (! $publicProperties->isEmpty()) {
  54              $callParent = 'if (isset(self::$' . $publicProperties->getName() . "[\$name])) {\n"
  55                  . '    unset($this->' . $valueHolder . '->$name);' . "\n\n    return;"
  56                  . "\n}\n\n";
  57          }
  58  
  59          $callParent .= PublicScopeSimulator::getPublicAccessSimulationCode(
  60              PublicScopeSimulator::OPERATION_UNSET,
  61              'name',
  62              null,
  63              $valueHolderProperty
  64          );
  65  
  66          $this->setBody(
  67              '$this->' . $initializer . ' && $this->' . $initializer
  68              . '->__invoke($this->' . $valueHolder . ', $this, \'__unset\', array(\'name\' => $name), $this->'
  69              . $initializer . ');' . "\n\n" . $callParent
  70          );
  71      }
  72  }