Enum generation

enum.php

<?php

enum Foo {
	case Bar;
	case Baz(int $qux);
}

// Gets compiled to

abstract class Foo
{
	public static function Bar(): Bar
	{
		return new Bar();
	}

	public static function Baz(int $qux): Baz
	{
		return new Baz($qux);
	}
}

final class Bar extends Foo
{
	protected function __construct()
	{
	}
}

final class Baz extends Foo
{
	public $qux;

	protected function __construct(int $qux)
	{
		$this->qux = $qux;
	}
}