Phobos' std.conv.to-conversion from enum to string doesn't scale beyond hundreds of enumerators

[Nordlöw]

On Sunday, 24 June 2018 at 22:33:09 UTC, Jonathan M Davis wrote:
> On Thursday, June 21, 2018 22:46:23 Per Nordlöw via 
> Digitalmars-d wrote:
>> I've discovered the annoying fact that std.conv.to doesn't 
>> scale
>> for enum to string conversion when the enum has hundreds of
>> members. This because of a call to `NoDuplicates` which has (at
>> least) O(n*log(n) time and space complexity.
>
> I'm certainly not going to argue against trying to make 
> std.conv.to faster, but what on earth are you doing that you 
> have an enum with hundreds of members? I would have thought 
> that an enum that had anywhere near fifty members was enormous, 
> let alone hundreds. I'm not sure that I've ever dealt with an 
> enum that had more than maybe a couple dozen members.
>
> - Jonathan M Davis

A knowledge database. The relation kind enum statically mirrors 
all the relations in a set of very large ontologies. I might 
decide to make it dynamically defined instead...