Builder doesn't have correct generic when initialized through class-string

[vixducis]

• Larastan Version: 2.9.2
• Laravel Version: 11.1.1

Description

When you initialize a Builder through the ::query() method on a class-string, the generic on the Builder isn't correctly deduced from the generic of the class-string, and defaults to Model. This can be easily tested by trying to access a local scope on the query, as demonstrated by the code below. This results in a PHPStan error: Call to an undefined method Illuminate\Database\Eloquent\Builder::test()..

It's debatable whether this is a bug or rather a feature request.

Laravel code where the issue was found

<?php

namespace App\Models\Example;

use Illuminate\Database\Eloquent\Builder;
use Illuminate\Database\Eloquent\Model;

class Example extends Model
{
    public function scopeTest(Builder $query): void {}
}

/** @var class-string<Example> $className */
$className = Example::class;
$className::query()
    ->test()
    ->get();

[calebdw]

👍 I'll try to get to this in the next week or two

A similar issue I've noticed is calling static::query() does not handle the static instance:

class AbstractModel extends Model
{
    public static function new(): static
    {
        return static::query()->create(); // fails, returns AbstractModel instead of static(AbstractModel)
    }
}

class User extends AbstractModel {}

\PHPStan\Testing\assertType('User', User::new());

[JeRabix]

I try help for first part of this issue, but currently can't understand how fix this:

 return static::query()->create(); // fails, returns AbstractModel instead of static(AbstractModel)

ModelDynamicStaticMethodReturnTypeExtension- skip all native class methods except only this:

if (in_array($name, ['get', 'hydrate', 'fromQuery'], true)) {
   return true;
}

when add method new to this except rule - it work correctly.