Initial Commit

dependencies/amphp/cache/lib/NullCache.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace WP_Ultimo\Dependencies\Amp\Cache;
+
+use WP_Ultimo\Dependencies\Amp\Promise;
+use WP_Ultimo\Dependencies\Amp\Success;
+/**
+ * Cache implementation that just ignores all operations and always resolves to `null`.
+ */
+class NullCache implements Cache
+{
+    /** @inheritdoc */
+    public function get(string $key) : Promise
+    {
+        return new Success();
+    }
+    /** @inheritdoc */
+    public function set(string $key, string $value, int $ttl = null) : Promise
+    {
+        /** @var Promise<void> */
+        return new Success();
+    }
+    /** @inheritdoc */
+    public function delete(string $key) : Promise
+    {
+        return new Success(\false);
+    }
+}