Add Parameter Types (versions 2 of the library)

composer.json

@@ -10,7 +10,7 @@
         }
     ],
     "require": {
-        "php": ">=5.3.0"
+        "php": ">=8.0.0"
     },
     "autoload": {
         "psr-4": {
@@ -19,7 +19,7 @@
     },
     "extra": {
         "branch-alias": {
-            "dev-master": "1.0.x-dev"
+            "dev-master": "2.0.x-dev"
         }
     }
 }

src/CacheException.php

@@ -5,6 +5,6 @@
 /**
  * Interface used for all types of exceptions thrown by the implementing library.
  */
-interface CacheException
+interface CacheException extends \Throwable
 {
 }

src/CacheInterface.php

@@ -15,7 +15,7 @@ interface CacheInterface
      * @throws \Psr\SimpleCache\InvalidArgumentException
      *   MUST be thrown if the $key string is not a legal value.
      */
-    public function get($key, $default = null);
+    public function get(string $key, mixed $default = null);
 
     /**
      * Persists data in the cache, uniquely referenced by a key with an optional expiration TTL time.
@@ -31,7 +31,7 @@ public function get($key, $default = null);
      * @throws \Psr\SimpleCache\InvalidArgumentException
      *   MUST be thrown if the $key string is not a legal value.
      */
-    public function set($key, $value, $ttl = null);
+    public function set(string $key, mixed $value, null|int|\DateInterval $ttl = null);
 
     /**
      * Delete an item from the cache by its unique key.
@@ -43,7 +43,7 @@ public function set($key, $value, $ttl = null);
      * @throws \Psr\SimpleCache\InvalidArgumentException
      *   MUST be thrown if the $key string is not a legal value.
      */
-    public function delete($key);
+    public function delete(string $key);
 
     /**
      * Wipes clean the entire cache's keys.
@@ -55,16 +55,16 @@ public function clear();
     /**
      * Obtains multiple cache items by their unique keys.
      *
-     * @param iterable $keys    A list of keys that can be obtained in a single operation.
-     * @param mixed    $default Default value to return for keys that do not exist.
+     * @param iterable<string> $keys    A list of keys that can be obtained in a single operation.
+     * @param mixed            $default Default value to return for keys that do not exist.
      *
-     * @return iterable A list of key => value pairs. Cache keys that do not exist or are stale will have $default as value.
+     * @return iterable<string, mixed> A list of key => value pairs. Cache keys that do not exist or are stale will have $default as value.
      *
      * @throws \Psr\SimpleCache\InvalidArgumentException
      *   MUST be thrown if $keys is neither an array nor a Traversable,
      *   or if any of the $keys are not a legal value.
      */
-    public function getMultiple($keys, $default = null);
+    public function getMultiple(iterable $keys, mixed $default = null);
 
     /**
      * Persists a set of key => value pairs in the cache, with an optional TTL.
@@ -80,20 +80,20 @@ public function getMultiple($keys, $default = null);
      *   MUST be thrown if $values is neither an array nor a Traversable,
      *   or if any of the $values are not a legal value.
      */
-    public function setMultiple($values, $ttl = null);
+    public function setMultiple(iterable $values, null|int|\DateInterval $ttl = null);
 
     /**
      * Deletes multiple cache items in a single operation.
      *
-     * @param iterable $keys A list of string-based keys to be deleted.
+     * @param iterable<string> $keys A list of string-based keys to be deleted.
      *
      * @return bool True if the items were successfully removed. False if there was an error.
      *
      * @throws \Psr\SimpleCache\InvalidArgumentException
      *   MUST be thrown if $keys is neither an array nor a Traversable,
      *   or if any of the $keys are not a legal value.
      */
-    public function deleteMultiple($keys);
+    public function deleteMultiple(iterable $keys);
 
     /**
      * Determines whether an item is present in the cache.
@@ -110,5 +110,5 @@ public function deleteMultiple($keys);
      * @throws \Psr\SimpleCache\InvalidArgumentException
      *   MUST be thrown if the $key string is not a legal value.
      */
-    public function has($key);
+    public function has(string $key);
 }