Avoid Wikimedia\Assert in HashBagOStuff

This is the only usage of wikimedia/assert in the planned objectcache
library, so it doesn't make much sense to have a dependency upon the
entire library just for one usage that is trivially replaced.

Change-Id: I8f967fb2b861852c7fc74f7d42e2cbab1df05bc4

diff --git a/includes/libs/objectcache/HashBagOStuff.php b/includes/libs/objectcache/HashBagOStuff.php
index e03cec6..baa3c32 100644 (file)
--- a/includes/libs/objectcache/HashBagOStuff.php
+++ b/includes/libs/objectcache/HashBagOStuff.php
@@ -20,7 +20,6 @@
  * @file
  * @ingroup Cache
  */
-use Wikimedia\Assert\Assert;
 
 /**
  * Simple store for keeping values in an associative array for the current process.
@@ -46,7 +45,9 @@ class HashBagOStuff extends BagOStuff {
                parent::__construct( $params );
 
                $this->maxCacheKeys = isset( $params['maxKeys'] ) ? $params['maxKeys'] : INF;
-               Assert::parameter( $this->maxCacheKeys > 0, 'maxKeys', 'must be above zero' );
+               if ( $this->maxCacheKeys <= 0 ) {
+                       throw new InvalidArgumentException( '$maxKeys parameter must be above zero' );
+               }
        }
 
        protected function expire( $key ) {