Add a dialect for using immutable data types?

[darrencruse]

Immutable data types might be esp. of help for the html dialect for data binding in the spirit of React/Om where you can tell if something's changed very easily.

see e.g. http://jlongster.com/Using-Immutable-Data-Structures-in-JavaScript

Not that SugarLisp isn't trying to be a clojure or an Elm etc. so I think it's good this would be optional.

But possibly there's a nice way to support them as a dialect? Something like (in SugarScript):

#use "html"
#use "immutable"

val boundval;
var input = <h2>${boundval}</h2>;
boundval = if? (new Date().getHours() > 11) "good afternoon" else "good morning";

Note the keyword "val" for an immutable value.

The goal here would be to generate the code needed for one of these immutable libraries for get/set expressions using a "val" variable, but letting the sugarlisp programmer use normal javascript-y syntax.

(I need to look closer at these libraries but James Long's post above hints that most immutable libraries have special requirements i.e. something like "immutable.set(x, 10)" not just "x = 10")