Extending a protocol to nil results in an error

[thomascothran]

version

v0.8.125

problem

Extending a protocol to nil results in an error.

repro

(defprotocol Identity (i [this]))
(extend-protocol Identity object (i [s] s))  ;; <- this works
(extend-protocol Identity nil (i [_])) ;; <- this results in an error

The error looks like this:

expected expression, got keyword 'const'

evalCode@https://squint-cljs.github.io/squint/assets/index-C43Gqe_m.js:246:196
window.compile@https://squint-cljs.github.io/squint/assets/index-C43Gqe_m.js:302:5
onclick@https://squint-cljs.github.io/squint/:1:1

Squint playground reproduction

expected behavior

Parity with clojure and clojurescript when extending a protocol to nil.