Enum and interface

Jean-FrancoisHIVERT

Hi,

I found this issue related to the Enum and interface:

<?php

declare(strict_types=1);

namespace Devsense\Builtin;

interface MyEnumInterface
{
    public static function from(int|string $value): self;

    public static function tryFrom(int|string $value): ?self;
}
enum MyEnum implements MyEnumInterface
{
    case A;
    case B;

    public const string C = 'c';

    public function myMethod()
    {
        return null;
    }
}

This allow to enforce the builtin enum methods via interface.

Thank you for the fix.

JakubMisek

Jean-FrancoisHIVERT, thank you for the test case.

Will be fixed.

As a quick workaround, the enum may implement \BackedEnum interface:

enum MyEnum implements \BackedEnum, MyEnumInterface {

Jean-FrancoisHIVERT

oh yes thank you.

Maybe you can improve your tool with this use case even there is a workaround.
I implemented your workaround, my interface extends of BackedEnum.

JakubMisek

Jean-FrancoisHIVERT, yes, this will be fixed.

JakubMisek

Jean-FrancoisHIVERT the upcoming update will handle the compiler-generated from and tryFrom methods on backed enums.

Note, the enum must be "backed", i.e. have a backed type like enum MyEnum: string implements MyEnumInterface so it will have the from and tryFrom functions defined by the PHP engine (https://www.php.net/manual/en/class.backedenum.php).