What's the deal with the massive duplication in std.meta?

Q. Schroll qs.il.paperinik at gmail.com
Tue May 4 18:19:10 UTC 2021


On Tuesday, 4 May 2021 at 17:45:53 UTC, Paul Backus wrote:
> On Tuesday, 4 May 2021 at 17:39:54 UTC, Q. Schroll wrote:
>> On Tuesday, 4 May 2021 at 16:54:13 UTC, Andrei Alexandrescu 
>> wrote:
>>> I put together a bunch other related pull requests:
>>>
>>> https://github.com/dlang/phobos/pulls/andralex
>>>
>>> Using alias assignment with good measure leads to much 
>>> simpler and clearer code. I also measured memory consumption 
>>> improvements, but for the Phobos unittest they are not 
>>> dramatic.
>>
>> Is there some resource where the rules for alias assignments 
>> are spelled out? Googling '"alias assignment" site:dlang.org' 
>> produces no meaningful results. Having procedural aspects in a 
>> declarative space looks a bit odd to me. The change logs 
>> revealed nothing.
>
> There's an open spec PR:
>
> https://github.com/dlang/dlang.org/pull/2919

How does something like this not require a DIP?


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