@michael.e.loughlin Normally, in Clojure/Script, you'd just have a single atom with in your case a hash map of file paths to values. You can swap! in new "file" contents with (swap! db assoc "path/to/file" new-contents) and you can add new elements to files like this (swap! db assoc-in ["path/to/file" file-key] sub-content)

And your db would be (atom {"path/to/file/1" {:a 1, :b 2} "path/to/another/file" {:x 22 :y 33}})

In general, the designed use case for atoms, refs, and agents is that if they contain immutable values, you are safe. If they themselves contain mutable values, I would think 7 times carefully about corner cases before relying on it.

Hi, is there a way to use quote/splice/eval to evaluate a defrecord definition if I have a list of symbols? I have the following toy example:

Yes, you almost got it:

`(defrecord ~'Myrec [[email protected]])

`(~'defrecord ~'Myrec [[email protected]])

You shouldn't quote defrecord

ah, thanks!

yeah, the expansion will produce clojure.core/defrecord without the quote.

And that's probably correct

It depends if you want to use the defrecord defined in the namespace which is doing the expansion, or the one which is being expanded into.

I think I want the first one -- it expands to clojure.core/defrecord, but I'm not sure which of those two options that fulfills...

Then you want:

`(defrecord ~'Myrec [[email protected]])

That means that even if there is a defrecord defined in the namespace being expanded into, it will still use the defrecord macro from clojure.core

Though the second answer above gives no namespace, so I think I'm seeing what you mean. So I think in my particular case it doesn't matter, since I don't redefine defrecord, and will ultimately both resolve to clojure.core. But this helps me sort some of this stuff...

Ya, its going to be rare, but say you gave it away as a library, you can't assume that the consumer didn't shadow defrecord (even if that be pretty weird in this case).

Hey guys, i would like to evaluate expressions in cursive ide similar to how it's done in this picture. Could anyone explain to me how this works?

what you guys recommend as a math library? I need to use some optimizer such as Newton Raphson method,