Minor adjustments

src/Factory.php

@@ -9,7 +9,7 @@
 use ByJG\Cache\Psr16\RedisCacheEngine;
 use ByJG\Cache\Psr16\SessionCacheEngine;
 use ByJG\Cache\Psr16\ShmopCacheEngine;
-use ByJG\Cache\Psr\CachePool;
+use ByJG\Cache\Psr6\CachePool;
 
 class Factory
 {

src/Psr16/ArrayCacheEngine.php

@@ -3,7 +3,6 @@
 namespace ByJG\Cache\Psr16;
 
 use Psr\Log\NullLogger;
-use Psr\SimpleCache\DateInterval;
 
 class ArrayCacheEngine extends BaseCacheEngine
 {
@@ -67,7 +66,7 @@ public function get($key, $default = null)
      *
      * @param string                $key   The key of the item to store.
      * @param mixed                 $value The value of the item to store, must be serializable.
-     * @param null|int|DateInterval $ttl   Optional. The TTL value of this item. If no value is sent and
+     * @param null|int|\DateInterval $ttl   Optional. The TTL value of this item. If no value is sent and
      *                                     the driver supports TTL then the library may set a default value
      *                                     for it or let the driver take care of that.
      *
@@ -97,7 +96,7 @@ public function clear()
      * Unlock resource
      *
      * @param string $key
-     * @return bool|void
+     * @return bool
      */
     public function delete($key)
     {

src/Psr16/BaseCacheEngine.php

@@ -47,5 +47,7 @@ protected function addToNow($ttl)
             $now->add($ttl);
             return $now->getTimestamp();
         }
+
+        return null;
     }
 }

src/Psr16/FileSystemCacheEngine.php

@@ -66,7 +66,7 @@ public function get($key, $default = null)
      *
      * @param string                $key   The key of the item to store.
      * @param mixed                 $value The value of the item to store, must be serializable.
-     * @param null|int|DateInterval $ttl   Optional. The TTL value of this item. If no value is sent and
+     * @param null|int|\DateInterval $ttl   Optional. The TTL value of this item. If no value is sent and
      *                                     the driver supports TTL then the library may set a default value
      *                                     for it or let the driver take care of that.
      *
@@ -177,6 +177,7 @@ public function clear()
         foreach ($list as $file) {
             unlink($file);
         }
+        return true;
     }
 
     /**

src/Psr16/MemcachedEngine.php

@@ -2,7 +2,6 @@
 
 namespace ByJG\Cache\Psr16;
 
-use ByJG\Cache\CacheEngineInterface;
 use Memcached;
 use Psr\Log\NullLogger;
 

src/Psr16/NoCacheEngine.php

@@ -28,8 +28,8 @@ public function set($key, $value, $ttl = 0)
     }
 
     /**
-     * Unlock resource
      * @param string $key
+     * @return bool
      */
     public function delete($key)
     {

src/Psr16/RedisCacheEngine.php

@@ -57,7 +57,7 @@ protected function fixKey($key) {
     /**
      * @param string $key The object KEY
      * @param int $default IGNORED IN MEMCACHED.
-     * @return object Description
+     * @return mixed Description
      */
     public function get($key, $default = null)
     {

src/Psr16/ShmopCacheEngine.php

@@ -120,7 +120,7 @@ protected function isValidAge($file)
      *
      * @param string $key The key of the item to store.
      * @param mixed $value The value of the item to store, must be serializable.
-     * @param null|int|DateInterval $ttl Optional. The TTL value of this item. If no value is sent and
+     * @param null|int|\DateInterval $ttl Optional. The TTL value of this item. If no value is sent and
      *                                     the driver supports TTL then the library may set a default value
      *                                     for it or let the driver take care of that.
      * @return bool True on success and false on failure.

src/Psr6/CachePool.php

@@ -2,12 +2,10 @@
 
 namespace ByJG\Cache\Psr6;
 
-use ByJG\Cache\CacheEngineInterface;
 use ByJG\Cache\Psr16\BaseCacheEngine;
 use Psr\Cache\CacheItemInterface;
 use Psr\Cache\CacheItemPoolInterface;
 use Psr\Log\InvalidArgumentException;
-use Psr\SimpleCache\CacheInterface;
 
 class CachePool implements CacheItemPoolInterface
 {