rector/packages/Defluent/NodeAnalyzer/SameClassMethodCallAnalyzer.php

<?php

declare (strict_types=1);
namespace Rector\Defluent\NodeAnalyzer;

use PhpParser\Node\Expr\MethodCall;
use PHPStan\Reflection\MethodReflection;
use Rector\Core\Reflection\ReflectionResolver;
final class SameClassMethodCallAnalyzer
{
    /**
     * @readonly
     * @var \Rector\Core\Reflection\ReflectionResolver
     */
    private $reflectionResolver;
    public function __construct(ReflectionResolver $reflectionResolver)
    {
        $this->reflectionResolver = $reflectionResolver;
    }
    /**
     * @param MethodCall[] $chainMethodCalls
     */
    public function haveSingleClass(array $chainMethodCalls) : bool
    {
        // are method calls located in the same class?
        $classOfClassMethod = [];
        foreach ($chainMethodCalls as $chainMethodCall) {
            $methodReflection = $this->reflectionResolver->resolveMethodReflectionFromMethodCall($chainMethodCall);
            if ($methodReflection instanceof MethodReflection) {
                $declaringClass = $methodReflection->getDeclaringClass();
                $classOfClassMethod[] = $declaringClass->getName();
            } else {
                $classOfClassMethod[] = null;
            }
        }
        $uniqueClasses = \array_unique($classOfClassMethod);
        return \count($uniqueClasses) < 2;
    }
}