implement in-ns as function rather than built-in

[borkdude]

[SignSpice]

Good Afternoon!
I'm interested in this feature, in particular for use with RCF.

I'm happy to help with it if I can. Although at the moment I would not be sure where to start.

[borkdude]

Thanks for your interest.

This should be removed:

sci/src/sci/impl/analyzer.cljc

Lines 1358 to 1364 in 09b269c

	(defn analyze-in-ns [ctx expr]
	(let [ns-expr (analyze ctx (second expr))]
	(sci.impl.types/->Node
	(let [ns-sym (types/eval ns-expr ctx bindings)]
	(set-namespace! ctx ns-sym nil)
	nil)
	nil)))

sci/src/sci/impl/analyzer.cljc

Line 1470 in 09b269c

in-ns (analyze-in-ns ctx expr))

And then we should add a function in sci.impl.namespaces. There are many similar sci-ns-* functions in there that might give you ideas.