CljsJs

Cljs eval, captures some dynamic vars then delegates to eval* which delegates to ns-side-effects which calls load-deps which calls require which calls eval-str*.

This chain leads to some conclusions:

• a custom (async) reader would not be used for loading deps (not unlike clj but worth keeping in mind),
• the value proposition of a custom reader is diminished
• no custom reader implies no new dyn vars
• so buffer until enough to read is going to stay for now.

Another conclusion is that since eval is async, we need a way to prevent the REPL from looping if we want to upgrade. In Clojure this is done by not returning from eval. What would the equivalent be for CLJS?

• Returns a special value (promise like)
• Manually acquire/release stdin?