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 <856d4f8d-e901-ba76-e421-303b7a7bc05e@fischer.name>
Date: Wed, 30 Dec 2020 10:07:34 -0600
To: "php internals" <internals@lists.php.net>
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Subject: Re: [PHP-DEV] [RFC] Enumerations, Round 2
From: larry@garfieldtech.com ("Larry Garfield")

On Wed, Dec 30, 2020, at 2:43 AM, Markus Fischer wrote:
> Hi,
>=20
> On 28.12.20 21:21, Larry Garfield wrote:
> > The full RFC is here, and I recommend reading it again in full given=
 how much was updated.
> >=20
> > https://wiki.php.net/rfc/enumerations
>=20
> I tried to answer the following question but failed to do so:
>=20
> What is the scalar value for a ScalarEnum if none is explicitly define=
d?
>=20
> The RFC makes this example:
>  > enum Suit: string implements Colorful {
>  >    case Hearts =3D 'H';
>  >    case Diamonds =3D 'D';
> =E2=80=A6
>  > 'D' =3D=3D Suit::Diamonds->value; // true
>=20
>=20
> What in this case?
>=20
>  > enum Suit: string {
>  >    case Hearts;
>  >    case Diamonds;
> =E2=80=A6
>=20
> What is the outcome of `Suit::Diamonds->value` ?

A parse error on the declaration; if it's a scalar enum, explicit values=
 are required for all cases.

--Larry Garfield