+++ /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\Arg;
-use PhpParser\Node\Expr\Include_;
-use PhpParser\Node\Expr\StaticCall;
-use PhpParser\Node\Name\FullyQualified as FullyQualifiedName;
-use PhpParser\Node\Scalar\LNumber;
-use Psy\Exception\ErrorException;
-use Psy\Exception\FatalErrorException;
-use Psy\Shell;
-
-/**
- * Add runtime validation for `require` and `require_once` calls.
- */
-class RequirePass extends CodeCleanerPass
-{
- private static $requireTypes = array(Include_::TYPE_REQUIRE, Include_::TYPE_REQUIRE_ONCE);
-
- /**
- * {@inheritdoc}
- */
- public function enterNode(Node $origNode)
- {
- if (!$this->isRequireNode($origNode)) {
- return;
- }
-
- $node = clone $origNode;
-
- /*
- * rewrite
- *
- * $foo = require $bar
- *
- * to
- *
- * $foo = require \Psy\CodeCleaner\RequirePass::resolve($bar)
- */
- $node->expr = new StaticCall(
- new FullyQualifiedName('Psy\CodeCleaner\RequirePass'),
- 'resolve',
- array(new Arg($origNode->expr), new Arg(new LNumber($origNode->getLine()))),
- $origNode->getAttributes()
- );
-
- return $node;
- }
-
- /**
- * Runtime validation that $file can be resolved as an include path.
- *
- * If $file can be resolved, return $file. Otherwise throw a fatal error exception.
- *
- * @throws FatalErrorException when unable to resolve include path for $file
- * @throws ErrorException if $file is empty and E_WARNING is included in error_reporting level
- *
- * @param string $file
- * @param int $lineNumber Line number of the original require expression
- *
- * @return string Exactly the same as $file
- */
- public static function resolve($file, $lineNumber = null)
- {
- $file = (string) $file;
-
- if ($file === '') {
- // @todo Shell::handleError would be better here, because we could
- // fake the file and line number, but we can't call it statically.
- // So we're duplicating some of the logics here.
- if (E_WARNING & error_reporting()) {
- ErrorException::throwException(E_WARNING, 'Filename cannot be empty', null, $lineNumber);
- } else {
- // @todo trigger an error as fallback? this is pretty ugly…
- // trigger_error('Filename cannot be empty', E_USER_WARNING);
- }
- }
-
- if ($file === '' || !stream_resolve_include_path($file)) {
- $msg = sprintf("Failed opening required '%s'", $file);
- throw new FatalErrorException($msg, 0, E_ERROR, null, $lineNumber);
- }
-
- return $file;
- }
-
- private function isRequireNode(Node $node)
- {
- return $node instanceof Include_ && in_array($node->type, self::$requireTypes);
- }
-}