Zend\Code\Generator\ParameterGenerator::setPosition PHP Method

    public function setPosition($position)
    {
        $this->position = (int) $position;
        return $this;
    }

 /**
  * @param  ParameterReflection $reflectionParameter
  * @return ParameterGenerator
  */
 public static function fromReflection(ParameterReflection $reflectionParameter)
 {
     $param = new ParameterGenerator();
     $param->setName($reflectionParameter->getName());
     if ($reflectionParameter->isArray()) {
         $param->setType('array');
     } elseif (method_exists($reflectionParameter, 'isCallable') && $reflectionParameter->isCallable()) {
         $param->setType('callable');
     } else {
         $typeClass = $reflectionParameter->getClass();
         if ($typeClass) {
             $parameterType = $typeClass->getName();
             $currentNamespace = $reflectionParameter->getDeclaringClass()->getNamespaceName();
             if (!empty($currentNamespace) && substr($parameterType, 0, strlen($currentNamespace)) == $currentNamespace) {
                 $parameterType = substr($parameterType, strlen($currentNamespace) + 1);
             } else {
                 $parameterType = '\\' . trim($parameterType, '\\');
             }
             $param->setType($parameterType);
         }
     }
     $param->setPosition($reflectionParameter->getPosition());
     if ($reflectionParameter->isOptional()) {
         $param->setDefaultValue($reflectionParameter->getDefaultValue());
     }
     $param->setPassedByReference($reflectionParameter->isPassedByReference());
     return $param;
 }