--- /dev/null
+<?php
+
+/*
+ * This file is part of Psy Shell.
+ *
+ * (c) 2012-2018 Justin Hileman
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Psy\ExecutionLoop;
+
+use Psy\Shell;
+
+/**
+ * Abstract Execution Loop Listener class.
+ */
+abstract class AbstractListener implements Listener
+{
+ /**
+ * {@inheritdoc}
+ */
+ public function beforeRun(Shell $shell)
+ {
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function beforeLoop(Shell $shell)
+ {
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function onInput(Shell $shell, $input)
+ {
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function onExecute(Shell $shell, $code)
+ {
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function afterLoop(Shell $shell)
+ {
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function afterRun(Shell $shell)
+ {
+ }
+}