Drupal 8.0.0 beta 12. More info: https://www.drupal.org/node/2514176

core/lib/Drupal/Component/Utility/OpCodeCache.php

@@ -0,0 +1,45 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\Component\Utility\OpCodeCache.
+ */
+
+namespace Drupal\Component\Utility;
+
+/**
+ * Provides helpers to handle PHP opcode caches.
+ *
+ * @ingroup utility
+ */
+class OpCodeCache {
+
+  /**
+   * Invalidates a PHP file from a possibly active opcode cache.
+   *
+   * In case the opcode cache does not support to invalidate an individual file,
+   * the entire cache will be flushed.
+   *
+   * @param string $pathname
+   *   The absolute pathname of the PHP file to invalidate.
+   */
+  public static function invalidate($pathname) {
+    clearstatcache(TRUE, $pathname);
+
+    // Check if the Zend OPcache is enabled and if so invalidate the file.
+    if (function_exists('opcache_invalidate')) {
+      opcache_invalidate($pathname, TRUE);
+    }
+    // If apcu extension is enabled in PHP 5.5 or greater it emulates apc.
+    // This is to provide an easy upgrade path if you are using apc's user
+    // caching however the emulation does not extend to opcode caching.
+    // Therefore we need to check if the function exists as well.
+    if (extension_loaded('apc') && function_exists('apc_delete_file')) {
+      // apc_delete_file() throws a PHP warning in case the specified file was
+      // not compiled yet.
+      // @see http://php.net/manual/en/function.apc-delete-file.php
+      @apc_delete_file($pathname);
+    }
+  }
+
+}