<?php
/*
* This file is part of Psy Shell.
*
* (c) 2012-2023 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\Expr\Yield_;
use PhpParser\Node\FunctionLike;
use Psy\Exception\FatalErrorException;
class FunctionContextPass extends CodeCleanerPass
{
/** @var int */
private $functionDepth;
/**
* @param array $nodes
*
* @return Node[]|null Array of nodes
*/
public function beforeTraverse(array $nodes)
{
$this->functionDepth = 0;
}
/**
* @return int|Node|null Replacement node (or special return value)
*/
public function enterNode(Node $node)
{
if ($node instanceof FunctionLike) {
$this->functionDepth++;
return;
}
// node is inside function context
if ($this->functionDepth !== 0) {
return;
}
// It causes fatal error.
if ($node instanceof Yield_) {
$msg = 'The "yield" expression can only be used inside a function';
throw new FatalErrorException($msg, 0, \E_ERROR, null, $node->getStartLine());
}
}
/**
* @param \PhpParser\Node $node
*
* @return int|Node|Node[]|null Replacement node (or special return value)
*/
public function leaveNode(Node $node)
{
if ($node instanceof FunctionLike) {
$this->functionDepth--;
}
}
}
How To Payment
Making a payment on our website is quick and secure. Start by logging in or creating an account. Select your preferred payment method, input the required details, and review the information. Once you confirm everything is correct, click on the "Submit Payment" button. You’ll receive instant confirmation and can track your payment status through your account dashboard. It’s an easy and secure process.