Support for ClojureScript transients

[swannodette]

Support for ClojureScript transients

[swannodette]

You mean actually exposing the transient and persistent! and related update fns right?

Yes, that’s right. Transients have always been a great idea, and would be useful in isolated places where persistent data structures would allocate too many objects, especially in applications such as games that are sensitive to garbage collection.

[Apologies for the duplicate email; I accidentally posted this with the wrong GitHub account.]

[swannodette]

I'm all for supporting transients but there is a question around naming, in Clojure and ClojureScript we can use the bang i.e. conj!. I'm not sure what we should do with the JS names to indicate their usage.

I suppose options include copying Clojure’s _BANG suffix, or using a simpler _ suffix (though this may clash with adapting any future ClojureScript names that end with -). Maybe _B would be a better compromise.

[swannodette]

I think mutable might be good for getting the transient version of a data structure. I wonder if these operations shouldn't be provided in a different namespace, mori.mutable, then we could just reuse the names?

[swannodette]

We now have a mori.mutable namespace. transient is thaw, persistent is freeze. The modification operations are simply their names minus the bang.

Ah, this is wonderful; thank you very much.