Initial import.

vendor/guzzle/cache/Guzzle/Cache/ClosureCacheAdapter.php

@@ -0,0 +1,57 @@
+<?php
+
+namespace Guzzle\Cache;
+
+/**
+ * Cache adapter that defers to closures for implementation
+ */
+class ClosureCacheAdapter implements CacheAdapterInterface
+{
+    /**
+     * @var array Mapping of method names to callables
+     */
+    protected $callables;
+
+    /**
+     * The callables array is an array mapping the actions of the cache adapter to callables.
+     * - contains: Callable that accepts an $id and $options argument
+     * - delete:   Callable that accepts an $id and $options argument
+     * - fetch:    Callable that accepts an $id and $options argument
+     * - save:     Callable that accepts an $id, $data, $lifeTime, and $options argument
+     *
+     * @param array $callables array of action names to callable
+     *
+     * @throws \InvalidArgumentException if the callable is not callable
+     */
+    public function __construct(array $callables)
+    {
+        // Validate each key to ensure it exists and is callable
+        foreach (array('contains', 'delete', 'fetch', 'save') as $key) {
+            if (!array_key_exists($key, $callables) || !is_callable($callables[$key])) {
+                throw new \InvalidArgumentException("callables must contain a callable {$key} key");
+            }
+        }
+
+        $this->callables = $callables;
+    }
+
+    public function contains($id, array $options = null)
+    {
+        return call_user_func($this->callables['contains'], $id, $options);
+    }
+
+    public function delete($id, array $options = null)
+    {
+        return call_user_func($this->callables['delete'], $id, $options);
+    }
+
+    public function fetch($id, array $options = null)
+    {
+        return call_user_func($this->callables['fetch'], $id, $options);
+    }
+
+    public function save($id, $data, $lifeTime = false, array $options = null)
+    {
+        return call_user_func($this->callables['save'], $id, $data, $lifeTime, $options);
+    }
+}