--- /dev/null
+<?php
+
+/*
+ * This file is part of Psy Shell.
+ *
+ * (c) 2012-2017 Justin Hileman
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Psy\CodeCleaner;
+
+use PhpParser\Node\Expr;
+use PhpParser\Node\Expr\Exit_;
+use PhpParser\Node\Stmt\Return_ as ReturnStmt;
+
+/**
+ * Add an implicit "return" to the last statement, provided it can be returned.
+ */
+class ImplicitReturnPass extends CodeCleanerPass
+{
+ /**
+ * @param array $nodes
+ */
+ public function beforeTraverse(array $nodes)
+ {
+ $last = end($nodes);
+
+ if ($last instanceof Expr && !($last instanceof Exit_)) {
+ $nodes[count($nodes) - 1] = new ReturnStmt($last, array(
+ 'startLine' => $last->getLine(),
+ 'endLine' => $last->getLine(),
+ ));
+ }
+
+ return $nodes;
+ }
+}