class FrozenParameterBag

Container.php in drupal/core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Container.php

FrozenParameterBagTest.php in drupal/core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Tests/ParameterBag/FrozenParameterBagTest.php

services10.php in drupal/core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services10.php

class FrozenParameterBag extends ParameterBag {

  /**
   * Constructor.
   *
   * For performance reasons, the constructor assumes that
   * all keys are already lowercased.
   *
   * This is always the case when used internally.
   *
   * @param array $parameters An array of parameters
   *
   * @api
   */
  public function __construct(array $parameters = array()) {
    $this->parameters = $parameters;
    $this->resolved = true;
  }

  /**
   * {@inheritDoc}
   *
   * @api
   */
  public function clear() {
    throw new LogicException('Impossible to call clear() on a frozen ParameterBag.');
  }

  /**
   * {@inheritDoc}
   *
   * @api
   */
  public function add(array $parameters) {
    throw new LogicException('Impossible to call add() on a frozen ParameterBag.');
  }

  /**
   * {@inheritDoc}
   *
   * @api
   */
  public function set($name, $value) {
    throw new LogicException('Impossible to call set() on a frozen ParameterBag.');
  }

}