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AbstractClassPass.php (2.14 KB)

CallTimePassByReferencePass.php (1.36 KB)

CodeCleanerPass.php (415 B)

ExitPass.php (748 B)

FinalClassPass.php (1.62 KB)

FunctionContextPass.php (1.31 KB)

FunctionReturnInWriteContextPass.php (2.97 KB)

ImplicitReturnPass.php (4.14 KB)

InstanceOfPass.php (1.3 KB)

LeavePsyshAlonePass.php (913 B)

LegacyEmptyPass.php (1.68 KB)

ListPass.php (3.21 KB)

LoopContextPass.php (3.39 KB)

MagicConstantsPass.php (1.04 KB)

NamespaceAwarePass.php (1.81 KB)

NamespacePass.php (2.36 KB)

NoReturnValue.php (889 B)

PassableByReferencePass.php (3.76 KB)

RequirePass.php (3 KB)

StrictTypesPass.php (2.65 KB)

UseStatementPass.php (4.08 KB)

ValidClassNamePass.php (12.08 KB)

ValidConstantPass.php (3.13 KB)

ValidConstructorPass.php (3.79 KB)

ValidFunctionNamePass.php (3.16 KB)

Edit: FunctionContextPass.php

<?php

/*
 * This file is part of Psy Shell.
 *
 * (c) 2012-2018 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
     */
    public function beforeTraverse(array $nodes)
    {
        $this->functionDepth = 0;
    }

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->getLine());
        }
    }

/**
     * @param \PhpParser\Node $node
     */
    public function leaveNode(Node $node)
    {
        if ($node instanceof FunctionLike) {
            $this->functionDepth--;
        }
    }
}