/**
  * Invoke the encapsulation shunter.
  *
  * @param   \Hoa\Praspel\Preambler\Handler  $preambler    Preambler.
  * @return  void
  * @throws  \Hoa\Praspel\Exception\Preambler
  */
 public function __invoke(Handler $preambler)
 {
     $callable = $preambler->__getCallable();
     $reflection = $callable->getReflection();
     $registry = Praspel::getRegistry();
     if ($reflection instanceof \ReflectionClass) {
         $_object = $reflection->newInstance();
         $preambler->__setCallable(xcallable($_object, '__construct'));
     } elseif (!$reflection instanceof \ReflectionMethod) {
         throw new Praspel\Exception\Preambler('The callable must be a class and a (dynamic) method name.', 0);
     } else {
         $callback = $callable->getValidCallback();
         if (!is_object($callback[0])) {
             $reflectionClass = $reflection->getDeclaringClass();
             $_reflectionClass = $reflectionClass;
             while (null === ($constructor = $_reflectionClass->getConstructor()) && false !== ($_reflectionClass = $_reflectionClass->getParentClass())) {
             }
             if (null === $constructor) {
                 $_object = $reflectionClass->newInstance();
             } else {
                 $className = $_reflectionClass->getName();
                 $id = $className . '::__construct';
                 if (!isset($registry[$id])) {
                     $registry[$id] = Praspel::interpret(Praspel::extractFromComment($constructor->getDocComment()), $className);
                 }
                 $assertionChecker = $this->getAssertionChecker();
                 if (null === $assertionChecker) {
                     $assertionChecker = '\\Hoa\\Praspel\\AssertionChecker';
                 }
                 $arguments = $assertionChecker::generateData($registry[$id]);
                 $_object = $reflectionClass->newInstanceArgs($arguments);
             }
             $preambler->__setCallable(xcallable($_object, $callback[1]));
         }
     }
     $reflectionObject = $preambler->__getReflectionObject($object);
     $className = $reflectionObject->getName();
     $properties = $reflectionObject->getProperties();
     foreach ($properties as $property) {
         $propertyName = $property->getName();
         $id = $className . '::$' . $propertyName;
         if (false === isset($registry[$id])) {
             $registry[$id] = Praspel::interpret(Praspel::extractFromComment($property->getDocComment()), $className);
         }
         $specification = $registry[$id];
         if (false === $specification->clauseExists('invariant')) {
             throw new Praspel\Exception\Preambler('Cannot generate a value from %s because it has no ' . '@invariant clause.', 1, $id);
         }
         $preambler->{$propertyName} = $specification->getClause('invariant')->getVariable($propertyName)->sample();
     }
     return;
 }