--- /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;
+use PhpParser\Node\Stmt\Class_ as ClassStmt;
+use PhpParser\Node\Stmt\ClassMethod;
+use PhpParser\Node\Stmt\Namespace_ as NamespaceStmt;
+use Psy\Exception\FatalErrorException;
+
+/**
+ * Validate that the old-style constructor function is not static.
+ *
+ * As of PHP 5.3.3, methods with the same name as the last element of a namespaced class name
+ * will no longer be treated as constructor. This change doesn't affect non-namespaced classes.
+ *
+ * Validation of the __construct method ensures the PHP Parser.
+ *
+ * @author Martin HasoĊ <martin.hason@gmail.com>
+ */
+class StaticConstructorPass extends CodeCleanerPass
+{
+ private $isPHP533;
+ private $namespace;
+
+ public function __construct()
+ {
+ $this->isPHP533 = version_compare(PHP_VERSION, '5.3.3', '>=');
+ }
+
+ public function beforeTraverse(array $nodes)
+ {
+ $this->namespace = array();
+ }
+
+ /**
+ * Validate that the old-style constructor function is not static.
+ *
+ * @throws FatalErrorException if the old-style constructor function is static
+ *
+ * @param Node $node
+ */
+ public function enterNode(Node $node)
+ {
+ if ($node instanceof NamespaceStmt) {
+ $this->namespace = isset($node->name) ? $node->name->parts : array();
+ } elseif ($node instanceof ClassStmt) {
+ // Bail early if this is PHP 5.3.3 and we have a namespaced class
+ if (!empty($this->namespace) && $this->isPHP533) {
+ return;
+ }
+
+ $constructor = null;
+ foreach ($node->stmts as $stmt) {
+ if ($stmt instanceof ClassMethod) {
+ // Bail early if we find a new-style constructor
+ if ('__construct' === strtolower($stmt->name)) {
+ return;
+ }
+
+ // We found a possible old-style constructor
+ // (unless there is also a __construct method)
+ if (strtolower($node->name) === strtolower($stmt->name)) {
+ $constructor = $stmt;
+ }
+ }
+ }
+
+ if ($constructor && $constructor->isStatic()) {
+ throw new FatalErrorException(sprintf(
+ 'Constructor %s::%s() cannot be static',
+ implode('\\', array_merge($this->namespace, (array) $node->name)),
+ $constructor->name
+ ));
+ }
+ }
+ }
+}