compile.sh

#!/bin/bash
# safety settings
set -u
set -e
set -o pipefail

function run {
	version="$1"
	if [ "$version" == "" ]; then
		version_spec=""
		version_spec_u=""
		version_human="the newest version"
	else
		version_spec="@$version"
		version_spec_u="_$version"
		version_human="$version"
	fi

	echo "Running for $version_human"
	npx google-closure-compiler$version_spec \
		-O ADVANCED \
		--language_in=ES_NEXT \
		--language_out=ES_NEXT \
		--module_resolution=NODE \
		--dependency_mode=PRUNE \
		--chunk_output_type=ES_MODULES \
		--js other-module.js --chunk om$version_spec_u:1 \
		--js main.js --chunk mainopt$version_spec_u:1:om$version_spec_u  \
		--entry_point main.js \
		--js_output_file opt$version_spec.js
		#		--js some-module.js --chunk sm$version_spec_u:1 \

	echo "DONE: opt$version_spec.js  ($version_human)"
}

if [ $# == 0 ]; then
	# Run in the newest version + version currently used in Scala.js
	for version_spec in v20220202 "" ; do
		run "$version_spec"
	done
else
	# Run in the specified versions
	for version_spec in "$@"; do
		run "$version_spec"
	done
fi

gistfile1.txt

// just a stub of an imported module

/**
 * @type {Object}
 */
var bar;

export { bar };

main.js

//import * as foo = from "./other-module.js";

(async () => {
	const foo = await import("./other-module.js");
	foo["bar"]();
})()