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Date: Wed, 2 Nov 2022 14:08:50 -0700
Message-ID: <CAMrTa2FBMHhqCaMdD02JOgtGCiSJHBYtvcSu_Kh5QhqAC=P9xA@mail.gmail.com>
To: =?UTF-8?Q?Micha=C5=82_Marcin_Brzuchalski?= <michal.brzuchalski@gmail.com>
Cc: Josh Bruce <josh@joshbruce.dev>, php internals <internals@lists.php.net>
Content-Type: multipart/alternative; boundary="00000000000000ebb805ec834015"
Subject: Re: [PHP-DEV] [RFC][Discussion] Objects can be declared falsifiable
From: jordan.ledoux@gmail.com (Jordan LeDoux)

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On Wed, Nov 2, 2022 at 1:12 AM Micha=C5=82 Marcin Brzuchalski <
michal.brzuchalski@gmail.com> wrote:

> Hi Josh,
>
> Have you tried not initializing invalid objects? This could help you.
> Also that sounds more logical to me as I don't see any reasons to
> initialize invalid objects if it's a matter of simple validation instead.
>
> P.S. I don't see it feasible to have objects that evaluate false in
> logical expressions.
>
> Cheers,
> Micha=C5=82 Marcin Brzuchalski
>

The one situation in which I can think of where an object might
legitimately have a falsey bool casting is if it represents a single value
(that may have multiple properties associated with it, like units of
measurement), and `if ($obj)` is really asking something like `if
($obj->castSingleValuePropertyToBool())`.

For most of *these* situations, either `if ($obj->isEqual(0))` is
equivalent, or `if ($obj =3D=3D 0)` is equivalent if operator overloading w=
as
accepted.

Jordan

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