str.to!Enum performance

[Nick Treleaven]

On Monday, 7 September 2026 at 16:01:25 UTC, realhet wrote:
> On Monday, 7 September 2026 at 15:24:52 UTC, Richard (Rikki) 
> Andrew Cattermole wrote:
>> https://github.com/dlang/phobos/blob/master/std/conv.d#L1103
>>
>> Appears to be it.
>
> Thank You!
>
> So it is a switch() of string cases.

Only when `EnumMembers!S.length <= 50`. Maybe you could benchmark 
<= 50 members vs your AA?

> And that particular implementation is not allowed to do fancy, 
> resource-involving stuff like an associative array. I will 
> remember this. And also I will remember that with integer 
> cases, the switch can do crazy fast jump tables.