Is there a way to extend data class with additional properties?

[msnegurski]

We have several pretty big data classes (>50 properties) and they differ only by several properties. It would be really cool if there was a way to create base data class for them and just extend it with several properties, instead of having two almost identical classes, but I have no idea how to do it.

[rubenvanassche]

This should work, added a test to check it:

laravel-data/tests/DataTest.php

Lines 2376 to 2387 in 0e87504

	/** @test */
	public function it_can_inherit_properties_from_a_base_class()
	{
	$dataClass = new class('') extends SimpleData{
	public int $int;
	};
	$data = $dataClass::from(['string' => 'Hi', 'int' => 42]);
	$this->assertEquals('Hi', $data->string);
	$this->assertEquals(42, $data->int);
	}

[msnegurski]

Thank you! WIll try it in next few days

[msnegurski]

Alright, that totally works, thank you.