I'm thinking of using https://github.com/borkdude/sci in AWS Lambda to have Clojure there as well (I'm writing javascript as we speak..). Has anyone done/thought about this?

@jeroenvandijk It is possible. Any reason you're not just using CLJS?

I've explained it here: https://clojurians.slack.com/archives/C1AL322AJ/p1579684099024600 TLDR; I want to use it in inline in my Cloudformation Templates

I guess I could use a CLJS layer as well and use eval. The work to set this up for me would be pretty similar. Maybe sci is easier to work with. I could try both actually

fwiw there is already a sci library on npm

yep, that made me think about it 🙂

it's a couple versions behind, although I could update it if there's interest

I'm trying to create an easy aws lambda environment now to test things

Another advantage of using sci of cljs would be that you can test (parts) in a jvm environment. node is not an environment something I feel super comfortable in, could be just me

true

https://twitter.com/borkdude/status/1219929393264459778

I'm getting an error when trying the example in sci's README in node https://gist.github.com/jeroenvandijk/a15fa236ff86ad7b4cfa924c24aec1ba I don't really know what I'm doing. Seems to be a specific issue with dotimes

@jeroenvandijk Let me release a new version of sci for npm

Thank you!

@jeroenvandijk seems to work now

newest version is 0.0.12-alpha.12

I'm about to release a 0.0.12 version before I embark on a journey to add multimethods...

so if there's any issues, let me know

jep works now! Thanks

> I'm about to release a 0.0.12 version before I embark on a journey to add multimethods... Exciting and challenging I suppose :)

This is pretty cool (updated the gist) https://gist.github.com/jeroenvandijk/a15fa236ff86ad7b4cfa924c24aec1ba

Do you know if there is something special regarding methods on objects?

(println (.toString "somethign to string"))

Error: Method toString on function String() { [native code] } not allowed! [at line , column ]
    at new yl (/Users/jeroen/Projects/Private/github/node_modules/@borkdude/sci/sci.js:670:76)
    at Function.zl.c (/Users/jeroen/Projects/Private/github/node_modules/@borkdude/sci/sci.js:672:71)
    at Func

@jeroenvandijk The interop part of sci for JS is probably not as complete as the JVM, simply because no-one needed this yet. For this example I solved that by just bringing in functions that do the interop: https://github.com/borkdude/sci-wallpaper-downloader/blob/master/main.js

ah thanks, good to know

It might be improved if it gets more attention though.

how do you get a class name from something like the String object in cljs?

it seems .-name works

@jeroenvandijk I pushed one commit to sci. This now is one step closer:

const { evalString } = require('@borkdude/sci');
const opts = {bindings: {f: function() { console.log('hello'); }},
              classes: {String: String}};
evalString("(f (.toString \"foo\"))", opts);

cp out/min/sci.min.js /tmp/sci/node_modules/@borkdude/sci/sci.js

Thanks! I'll play with it

Pushed another commit. The static function call now seems to work:

const { evalString } = require('@borkdude/sci');
const opts = {bindings: {f: function(...args) { console.log(args.join(' ')); }},
              classes: {String: String}};
evalString("(f(String/fromCharCode 67))", opts);

C

That's quick. I can confirm the above works after pulling

@jeroenvandijk Pushed another thing. This now also works: evalString("(f(.charCodeAt \"foo\" 0))", opts);

I'm not sure if this works for every instance method call out there. I've tried something like this before, and then there was some problem I can't remember off the top of my head

Yes cool works as well

I'm guessing (.toString "s") is a special case. In the browser console "s".toString() does work

it says

Error: String.prototype.toString requires that 'this' be a String [at line 5, column 16]

maybe it would be cool if we could do:

const fs = require('fs');
const opts = {namespaces {fs fs}};

I'll take a look at that later today, afk now

Yeah would be cool

My flow for node scripts is a bit painful running node myscript.js everytime. I'm wondering if it is not possible to load all the javascript files into Rhino (or another vm) and run javascript from the repl. I'll look into that later 🙈

oh funny, it seems this already works:

const fs = require('fs');
const opts = {bindings: {f: function(...args) { console.log('x', args.join(' ')); }},
              namespaces: {fs: fs}};

console.log(evalString("(str (fs/readFileSync \"sci.js\"))", opts));

(I should really add some tests for all the working examples posted so far)

a bit weird, but this also seems to work:

const { evalString } = require('@borkdude/sci');
const fs = require('fs');

const opts = {namespaces: {
  console: console,
  fs: fs}};

evalString("(console/log (str (fs/readFileSync \"sci.js\")))", opts);

Tests added: https://github.com/borkdude/sci/commit/517d177a52c9e4fb3ec42ab9d26d824b6adeb2cb

Published a new version of the npm package