Update Composer, update everything

vendor/dflydev/placeholder-resolver/src/Dflydev/PlaceholderResolver/AbstractPlaceholderResolver.php

@@ -0,0 +1,59 @@
+<?php
+
+/*
+ * This file is a part of dflydev/placeholder-resolver.
+ *
+ * (c) Dragonfly Development Inc.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Dflydev\PlaceholderResolver;
+
+use Dflydev\PlaceholderResolver\Cache\Cache;
+use Dflydev\PlaceholderResolver\Cache\CacheInterface;
+
+abstract class AbstractPlaceholderResolver implements PlaceholderResolverInterface
+{
+    private $cache;
+    protected $maxReplacementDepth = 10;
+
+    /**
+     * Set maximum depth for recursive replacement
+     *
+     * @param int $maxReplacementDepth
+     *
+     * @return PlaceholderResolver
+     */
+    public function setMaxReplacementDepth($maxReplacementDepth)
+    {
+        $this->maxReplacementDepth = $maxReplacementDepth;
+
+        return $this;
+    }
+
+    /**
+     * Get cache
+     *
+     * @return CacheInterface
+     */
+    public function getCache()
+    {
+        if (null === $this->cache) {
+            $this->cache = new Cache;
+        }
+
+        return $this->cache;
+    }
+
+    /**
+     * Set cache
+     *
+     * @param CacheInterface $cache
+     */
+    public function setCache(CacheInterface $cache)
+    {
+        $this->cache = $cache;
+    }
+}