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   1  <?php
   2  
   3  declare(strict_types=1);
   4  
   5  namespace ProxyManager\ProxyGenerator\LazyLoadingValueHolder\MethodGenerator;
   6  
   7  use ProxyManager\Generator\MagicMethodGenerator;
   8  use Zend\Code\Generator\ParameterGenerator;
   9  use ProxyManager\ProxyGenerator\PropertyGenerator\PublicPropertiesMap;
  10  use ProxyManager\ProxyGenerator\Util\PublicScopeSimulator;
  11  use ReflectionClass;
  12  use Zend\Code\Generator\PropertyGenerator;
  13  
  14  /**
  15   * Magic `__get` for lazy loading value holder objects
  16   *
  17   * @author Marco Pivetta <ocramius@gmail.com>
  18   * @license MIT
  19   */
  20  class MagicGet extends MagicMethodGenerator
  21  {
  22      /**
  23       * Constructor
  24       *
  25       * @param ReflectionClass     $originalClass
  26       * @param PropertyGenerator   $initializerProperty
  27       * @param PropertyGenerator   $valueHolderProperty
  28       * @param PublicPropertiesMap $publicProperties
  29       *
  30       * @throws \Zend\Code\Generator\Exception\InvalidArgumentException
  31       * @throws \InvalidArgumentException
  32       */
  33      public function __construct(
  34          ReflectionClass $originalClass,
  35          PropertyGenerator $initializerProperty,
  36          PropertyGenerator $valueHolderProperty,
  37          PublicPropertiesMap $publicProperties
  38      ) {
  39          parent::__construct($originalClass, '__get', [new ParameterGenerator('name')]);
  40  
  41          $hasParent = $originalClass->hasMethod('__get');
  42  
  43          $initializer = $initializerProperty->getName();
  44          $valueHolder = $valueHolderProperty->getName();
  45          $callParent  = 'if (isset(self::$' . $publicProperties->getName() . "[\$name])) {\n"
  46              . '    return $this->' . $valueHolder . '->$name;'
  47              . "\n}\n\n";
  48  
  49          if ($hasParent) {
  50              $this->setInitializerBody(
  51                  $initializer,
  52                  $valueHolder,
  53                  $callParent . 'return $this->' . $valueHolder . '->__get($name);'
  54              );
  55  
  56              return;
  57          }
  58  
  59          $this->setInitializerBody(
  60              $initializer,
  61              $valueHolder,
  62              $callParent . PublicScopeSimulator::getPublicAccessSimulationCode(
  63                  PublicScopeSimulator::OPERATION_GET,
  64                  'name',
  65                  null,
  66                  $valueHolderProperty
  67              )
  68          );
  69      }
  70  
  71      private function setInitializerBody(string $initializer, string $valueHolder, string $callParent) : void
  72      {
  73          $this->setBody(
  74              '$this->' . $initializer . ' && $this->' . $initializer
  75              . '->__invoke($this->' . $valueHolder . ', $this, \'__get\', [\'name\' => $name], $this->'
  76              . $initializer . ');'
  77              . "\n\n" . $callParent
  78          );
  79      }
  80  }