Re: [RFC] Enumerations, Round 2

From: Date: Wed, 30 Dec 2020 15:39:03 +0000
Subject: Re: [RFC] Enumerations, Round 2
References: 1 2 3  Groups: php.internals 
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On 30.12.20 12:00, Rowan Tommins wrote:

On 30 December 2020 08:43:33 GMT+00:00, Markus Fischer <markus@fischer.name> wrote:

What is the scalar value for a ScalarEnum if none is explicitly
defined?


The question has no answer, because the declaration of the enum itself would be invalid:


If an enumeration is marked as having a scalar equivalent, then all cases must have a unique scalar equivalent defined explicitly.


enum Suit: string {
case Hearts;
case Diamonds;
}

Presumably, this would result in an Error being thrown when compiling the declaration.


I see.

What's the quickest way (=less code) to have an enum represent it's lexical name as the literal values?

So that … case Foo; case Bar; … results in ::Foo->value === 'Foo' etc.?

Is this possible without implementing this manually for all cases?

thanks,
- Markus

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