--- /dev/null
+<?php
+
+namespace Drupal\block_content\Access;
+
+use Drupal\Core\Access\AccessibleInterface;
+use Drupal\Core\Access\AccessResult;
+use Drupal\Core\Session\AccountInterface;
+
+/**
+ * An access group where all the dependencies must be allowed.
+ *
+ * @internal
+ */
+class AccessGroupAnd implements AccessibleInterface {
+
+ /**
+ * The access dependencies.
+ *
+ * @var \Drupal\Core\Access\AccessibleInterface[]
+ */
+ protected $dependencies = [];
+
+ /**
+ * {@inheritdoc}
+ */
+ public function addDependency(AccessibleInterface $dependency) {
+ $this->dependencies[] = $dependency;
+ return $this;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function access($operation, AccountInterface $account = NULL, $return_as_object = FALSE) {
+ $access_result = AccessResult::neutral();
+ foreach (array_slice($this->dependencies, 1) as $dependency) {
+ $access_result = $access_result->andIf($dependency->access($operation, $account, TRUE));
+ }
+ return $return_as_object ? $access_result : $access_result->isAllowed();
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getDependencies() {
+ return $this->dependencies;
+ }
+
+}