class ValueContainer

Container for values initialized lazily from a ValueSupplierInterface.

@author Christophe Coevoet <stof@notk.org>

Hierarchy

  • class \Assetic\Extension\Twig\ValueContainer implements \Assetic\Extension\Twig\ArrayAccess, \Assetic\Extension\Twig\IteratorAggregate, \Assetic\Extension\Twig\Countable

Expanded class hierarchy of ValueContainer

File

drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Extension/Twig/ValueContainer.php, line 21

Namespace

Assetic\Extension\Twig
View source
class ValueContainer implements \ArrayAccess, \IteratorAggregate, \Countable {
  private $values;
  private $valueSupplier;
  public function __construct(ValueSupplierInterface $valueSupplier) {
    $this->valueSupplier = $valueSupplier;
  }
  public function offsetExists($offset) {
    $this
      ->initialize();
    return array_key_exists($offset, $this->values);
  }
  public function offsetGet($offset) {
    $this
      ->initialize();
    if (!array_key_exists($offset, $this->values)) {
      throw new \OutOfRangeException(sprintf('The variable "%s" does not exist.', $offset));
    }
    return $this->values[$offset];
  }
  public function offsetSet($offset, $value) {
    throw new \BadMethodCallException('The ValueContainer is read-only.');
  }
  public function offsetUnset($offset) {
    throw new \BadMethodCallException('The ValueContainer is read-only.');
  }
  public function getIterator() {
    $this
      ->initialize();
    return new \ArrayIterator($this->values);
  }
  public function count() {
    $this
      ->initialize();
    return count($this->values);
  }
  private function initialize() {
    if (null === $this->values) {
      $this->values = $this->valueSupplier
        ->getValues();
    }
  }

}

Members

Namesort descending Modifiers Type Description Overrides
ValueContainer::$values private property
ValueContainer::$valueSupplier private property
ValueContainer::count public function
ValueContainer::getIterator public function
ValueContainer::initialize private function
ValueContainer::offsetExists public function
ValueContainer::offsetGet public function
ValueContainer::offsetSet public function
ValueContainer::offsetUnset public function
ValueContainer::__construct public function