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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\LazyLoadingGhost\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\MethodGenerator;
  27  use Zend\Code\Generator\PropertyGenerator;
  28  
  29  /**
  30   * Magic `__unset` method for lazy loading ghost objects
  31   *
  32   * @author Marco Pivetta <ocramius@gmail.com>
  33   * @license MIT
  34   */
  35  class MagicUnset extends MagicMethodGenerator
  36  {
  37      /**
  38       * @param \ReflectionClass                                                   $originalClass
  39       * @param \Zend\Code\Generator\PropertyGenerator                             $initializerProperty
  40       * @param \Zend\Code\Generator\MethodGenerator                               $callInitializer
  41       * @param \ProxyManager\ProxyGenerator\PropertyGenerator\PublicPropertiesMap $publicProperties
  42       */
  43      public function __construct(
  44          ReflectionClass $originalClass,
  45          PropertyGenerator $initializerProperty,
  46          MethodGenerator $callInitializer,
  47          PublicPropertiesMap $publicProperties
  48      ) {
  49          parent::__construct($originalClass, '__unset', array(new ParameterGenerator('name')));
  50  
  51          $override   = $originalClass->hasMethod('__unset');
  52          $callParent = '';
  53  
  54          $this->setDocblock(($override ? "{@inheritDoc}\n" : '') . '@param string $name');
  55  
  56          if (! $publicProperties->isEmpty()) {
  57              $callParent = 'if (isset(self::$' . $publicProperties->getName() . "[\$name])) {\n"
  58                  . '    unset($this->$name);'
  59                  . "\n\n    return;"
  60                  . "\n}\n\n";
  61          }
  62  
  63          if ($override) {
  64              $callParent .= "return parent::__unset(\$name);";
  65          } else {
  66              $callParent .= PublicScopeSimulator::getPublicAccessSimulationCode(
  67                  PublicScopeSimulator::OPERATION_UNSET,
  68                  'name'
  69              );
  70          }
  71  
  72          $this->setBody(
  73              '$this->' . $initializerProperty->getName() . ' && $this->' . $callInitializer->getName()
  74              . '(\'__unset\', array(\'name\' => $name));'
  75              . "\n\n" . $callParent
  76          );
  77      }
  78  }