This comment was originally written by markovuksan...@gmail.com

Here's link to gist with code used in the example: https://gist.github.com/markovuksanovic/8966280

Added Area-Dart2JS, Triaged labels.

This is a node-specific API and we would rather not include it in dart2js.

However: the main-call can already be intercepted by providing a 'dartMainRunner'. It currently doesn't support arguments, but that can easily be fixed. You could then have a separate file that you prefix to dart2js' output:

===
function dartMainRunner(main) {
  main(process.argv.slice(1));
}
===

Fwiw: we are discussing similar "pre-load" scripts for d8 and jsshell to reduce the size of the js file for web-applications.

Starting with r32740 we now support the dartMainRunner as described in my previous comment. In fact the dartMainRunner is now invoked with the original arguments (currently always "[]") and should forward them (or provide new ones) to the main function.

===
function dartMainRunner(main, args) {
  if (args.length != 0) throw "Non-zero arguments";
  main(process.argv.slive(1));
}

Closing, as we are unlikely to do more work on this unless there is great demand.

I would say this issue is fixed by cc3c701

dart2js emits a conversion stub when main takes a single argument with type List<String>.
The conversions stub copies the input JavaScript Array to a Dart List<String>.
The version of main passed to dartMainRunner includes this conversion.