test.js
export * as boom from "./a.js";
running npx google-closure-compiler --js test.js (Version 20240317.0.0) leads to
test.js:1:9: ERROR - [JSC_PARSE_ERROR] Parse error. 'from' expected
1| export * as boom from "./a.js";
^
1 error(s), 0 warning(s)
I didn't know this existed, but apparently some npm packages use it and it breaks compilation with shadow-cljs, see thheller/shadow-cljs#1190.