HigherOrderTapProxyExtension.php

<?php

declare(strict_types=1);

namespace NunoMaduro\Larastan\ReturnTypes;

use Illuminate\Support\HigherOrderTapProxy;
use PhpParser\Node\Expr\MethodCall;
use PHPStan\Analyser\Scope;
use PHPStan\Reflection\MethodReflection;
use PHPStan\Type\DynamicMethodReturnTypeExtension;
use PHPStan\Type\Generic\GenericObjectType;
use PHPStan\Type\MixedType;
use PHPStan\Type\Type;
use PHPStan\Type\TypeWithClassName;

/**
 * @internal
 */
final class HigherOrderTapProxyExtension implements DynamicMethodReturnTypeExtension
{
    /**
     * {@inheritdoc}
     */
    public function getClass(): string
    {
        return HigherOrderTapProxy::class;
    }

    /**
     * {@inheritdoc}
     */
    public function isMethodSupported(MethodReflection $methodReflection): bool
    {
        return true;
    }

    /**
     * {@inheritdoc}
     */
    public function getTypeFromMethodCall(
        MethodReflection $methodReflection,
        MethodCall $methodCall,
        Scope $scope
    ): Type {
        $type = $scope->getType($methodCall->var);
        if ($type instanceof GenericObjectType) {
            $types = $type->getTypes();
            if (count($types) === 1 && $types[0] instanceof TypeWithClassName) {
                return $types[0];
            }
        }

        return new MixedType();
    }
}