Developer
<?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\Array_;
use PhpParser\Node\Expr\Assign;
use PhpParser\Node\Expr\FuncCall;
use PhpParser\Node\Expr\Isset_;
use PhpParser\Node\Expr\MethodCall;
use PhpParser\Node\Expr\StaticCall;
use PhpParser\Node\Stmt\Unset_;
use PhpParser\Node\VariadicPlaceholder;
use Psy\Exception\FatalErrorException;
/**
* Validate that the functions are used correctly.
*
* @author Martin Hasoň <martin.hason@gmail.com>
*/
class FunctionReturnInWriteContextPass extends CodeCleanerPass
{
const ISSET_MESSAGE = 'Cannot use isset() on the result of an expression (you can use "null !== expression" instead)';
const EXCEPTION_MESSAGE = "Can't use function return value in write context";
/**
* Validate that the functions are used correctly.
*
* @throws FatalErrorException if a function is passed as an argument reference
* @throws FatalErrorException if a function is used as an argument in the isset
* @throws FatalErrorException if a value is assigned to a function
*
* @param Node $node
*
* @return int|Node|null Replacement node (or special return value)
*/
public function enterNode(Node $node)
{
if ($node instanceof Array_ || $this->isCallNode($node)) {
$items = $node instanceof Array_ ? $node->items : $node->args;
foreach ($items as $item) {
if ($item instanceof VariadicPlaceholder) {
continue;
}
if ($item && $item->byRef && $this->isCallNode($item->value)) {
throw new FatalErrorException(self::EXCEPTION_MESSAGE, 0, \E_ERROR, null, $node->getStartLine());
}
}
} elseif ($node instanceof Isset_ || $node instanceof Unset_) {
foreach ($node->vars as $var) {
if (!$this->isCallNode($var)) {
continue;
}
$msg = $node instanceof Isset_ ? self::ISSET_MESSAGE : self::EXCEPTION_MESSAGE;
throw new FatalErrorException($msg, 0, \E_ERROR, null, $node->getStartLine());
}
} elseif ($node instanceof Assign && $this->isCallNode($node->var)) {
throw new FatalErrorException(self::EXCEPTION_MESSAGE, 0, \E_ERROR, null, $node->getStartLine());
}
}
private function isCallNode(Node $node): bool
{
return $node instanceof FuncCall || $node instanceof MethodCall || $node instanceof StaticCall;
}
}
Developer
To access the Kueue Pay Developer API, you’ll need an API key. You can obtain your API key by logging in to your Kueue Pay merchant account and navigating to the API section. Collect Client ID , Secret ID & Merchant ID Carefully. Keep your API key confidential and do not share it publicly.