first commit

vendor/doctrine/cache/lib/Doctrine/Common/Cache/ArrayCache.php

@@ -0,0 +1,113 @@
+<?php
+
+namespace Doctrine\Common\Cache;
+
+use function time;
+
+/**
+ * Array cache driver.
+ *
+ * @link   www.doctrine-project.org
+ */
+class ArrayCache extends CacheProvider
+{
+    /** @var array[] $data each element being a tuple of [$data, $expiration], where the expiration is int|bool */
+    private $data = [];
+
+    /** @var int */
+    private $hitsCount = 0;
+
+    /** @var int */
+    private $missesCount = 0;
+
+    /** @var int */
+    private $upTime;
+
+    /**
+     * {@inheritdoc}
+     */
+    public function __construct()
+    {
+        $this->upTime = time();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doFetch($id)
+    {
+        if (! $this->doContains($id)) {
+            $this->missesCount += 1;
+
+            return false;
+        }
+
+        $this->hitsCount += 1;
+
+        return $this->data[$id][0];
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doContains($id)
+    {
+        if (! isset($this->data[$id])) {
+            return false;
+        }
+
+        $expiration = $this->data[$id][1];
+
+        if ($expiration && $expiration < time()) {
+            $this->doDelete($id);
+
+            return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doSave($id, $data, $lifeTime = 0)
+    {
+        $this->data[$id] = [$data, $lifeTime ? time() + $lifeTime : false];
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doDelete($id)
+    {
+        unset($this->data[$id]);
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doFlush()
+    {
+        $this->data = [];
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doGetStats()
+    {
+        return [
+            Cache::STATS_HITS             => $this->hitsCount,
+            Cache::STATS_MISSES           => $this->missesCount,
+            Cache::STATS_UPTIME           => $this->upTime,
+            Cache::STATS_MEMORY_USAGE     => null,
+            Cache::STATS_MEMORY_AVAILABLE => null,
+        ];
+    }
+}