Re: bikeshed: Typed Aliases

From: Date: Sat, 07 Sep 2024 17:07:59 +0000
Subject: Re: bikeshed: Typed Aliases
References: 1 2 3 4 5 6 7 8  Groups: php.internals 
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On 7 September 2024 17:23:13 BST, Davey Shafik <[email protected]> wrote:
>
>My point is that if you talk about type DEFs, you now have this feature where you can input one
>type and get something that encapsulates it, and it seems weird that enums would LOOK similar In
>type hint usage and function differently.

Personally, I would prefer to go the other way: make typedefs, like enums, something you explicitly
construct / cast to, rather than something that implicitly coerces any compatible value. 

Like enums, I would want to use typedefs to prevent accidental mixing of values (e.g. a name where a
reference number was expected, or a size in pixels where a size in centimetres was expected). That
use is compromised if every scalar value is silently accepted for any matching typedef.

Regards,
Rowan Tommins
[IMSoP]


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