synrc/shen

🐉 SHEN: Erlang JavaScript Compiler

shen's Issues

status?

What is the status of this library? Since there are no update in last 2 years, I wondered how much stable it is and safe to use in prod. Also if there anything to do to help.

Let me know :)

Any way to output an JS AST tree?

same as title

Use case for "Why did you need an JS AST tree?"

The key is I'd need to reference back to Erlang's line and col or indexed [startOf, endOf] information and save it as part of the Mozilla AST data structure to be used in a thrid-party web application. Basically some kind of a source map between erlang to js generated.

It was originally why i was checking on the Luuvscript: http://luvv.ie/toolchain.html

Basically the scenario is that I need to be able to execute the code on the web and notify the user that at line 5 of Erlang code, they made an error. I wonder if there is any way you can preserve the range info. It would need to be a JS range: Erlang range map or just directly translating the Erlang AST to Mozilla JS AST before encoding it to JS.

An example of JS AST here: http://esprima.org/demo/parse.html#

Error in example erl

start() ->
        N = fac(5),
        console:log("factorial ~p", [J, N]).

probably should be

start() ->
        J = 5,
        N = fac(J),
        console:log("factorial ~p", [J, N]).