<?php declare(strict_types = 1);

namespace PHPStan\Node;

use PhpParser\Node;

use PHPStan\Turbo\ShadowedByTurboExtension;

use function is_array;

/**

* Recursive AST queries over php-parser node graphs.

*/

#[ShadowedByTurboExtension(turboClass: 'PHPStanTurbo\NodeScanner', implementation: __DIR__ . '/../../turbo-ext/src/NodeScanner.cpp')]

final class NodeScanner

{

public static function nodeIsOrContainsYield(Node $node): bool

{

if ($node instanceof Node\Expr\Yield_) {

return true;

}

if ($node instanceof Node\Expr\YieldFrom) {

return true;

}

foreach ($node->getSubNodeNames() as $nodeName) {

$nodeProperty = $node->$nodeName;

if ($nodeProperty instanceof Node && self::nodeIsOrContainsYield($nodeProperty)) {

return true;

}

if (!is_array($nodeProperty)) {

continue;

}

foreach ($nodeProperty as $nodePropertyArrayItem) {

if ($nodePropertyArrayItem instanceof Node && self::nodeIsOrContainsYield($nodePropertyArrayItem)) {

return true;

}

}

}

return false;

}

}