Is the ST module at all useful? about purescript-record

[hdgarrood]

I don’t think we should make ST an indexed monad just to satisfy one use case which nobody seems interested in anyway. I think the use case of wanting to have a record where all the fields are mutable and performance is too much of a concern to just put the whole record in the Ref is probably too niche to deserve a spot in core, so my preference would be removing the whole module.

[natefaubion]

I have never had a use for it. However I could see using it with a Global region to have a record with mutable fields.

[JordanMartinez]

then it wouldn't be ST anymore either.

We could just make ST an indexed monad.

[kritzcreek]

If the only good way to use this is with a Global region it should just work in Effect instead, I know I would've had a use for this a couple of times recently where handling a record full of Refs was a little annoying.

[kl0tl]

Ouch, that’s embarrassing, I didn’t even notice that there’s no way to add fields to a mutable record with the ST interface 🙈 I opened #77 to remove Record.ST.run.