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Lumo – A fast, standalone ClojureScript REPL that runs on Node.js and V8

anmonteiro.com

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Re: Lumo – A fast, standalone ClojureScript REPL that runs on Node.js and V8

#31

Post by cutler »

delegate wrote: post #11

The startup time is of course very low, so that's good. I think you're underselling the tool for beginners like myself - it's not just a ClojureScript REPL, it's actually an executable which can run node.js scripts written in clojurescript. For example, here's the typical node http server example: https://gist.github.com/anonymous/c14b2b57184c650d9f3ff0a9e1... You can run it with lumo test.cljs

Considering it's running as a standalone script, how does it resolve its dependency on cljs.nodejs? That's a Clojurescript library, no?

Re: Lumo – A fast, standalone ClojureScript REPL that runs on Node.js and V8

#32

Post by berdario »

glogla wrote: post #26
berdario wrote: post #6

Earlier quoted context omitted.

If I remember correctly, LFE is a Lisp2 Joxa (just like Clojure) is a Lisp1, thus maybe more apt http://joxa.org

I'm curious, what are the practical differences? I know what the theoretical differences are, but do you have any experience with how lisp1 and lisp2 are different in daily use?

I'm afraid I don't have a satisfactory answer for you.

I just prefer to pass around functions/closures as values, and being able to invoke them like any normal function, instead of having to call an helper `apply`/`invoke`/`call` function on them (depending on the language)

That's why I said: "maybe more apt"... if OP doesn't care at all about that difference, and it's not among the details that they'd want to replicate from Clojure, it's perfectly ok to ignore

Re: Lumo – A fast, standalone ClojureScript REPL that runs on Node.js and V8

#34

Post by shadowmint »

aaimnr wrote: post #12
sz4kerto wrote: post #8

Earlier quoted context omitted.

One of the main objectives of Clojure was interoperability with Java because of the ecosystem. Java and Erlang ecosystems are not comparable. Also, JVM is great. :)

That's not true. One of the main objectives of Clojure was to be a hosted language. Not just 'language hosted on JVM'. So idea to make it work on top of Erlang VM is perfectly valid and consistent with original design assumptions.

Whether it's as important now or not is a different matter I suppose, with various targets for the language (including other VMs), but I don't think it's in dispute that originally the extensive java ecosystem was core to what clojure was, and was designed to be.

...but hey, don't take my word for it:

    The net result is that the prospects for Clojure going forward are
    very good. The core model of Clojure has held up well and continues to
    appeal - accessible, robust, thread-safe, efficient dynamic functional
    programming, on a world-class infrastructure, with a huge set of
    libraries. Oh yeah, and it's great fun! 

    - Rich Hickey, 2008
    https://groups.google.com/forum/#!topic/clojure/2CA_H58Cbo0

Re: Lumo – A fast, standalone ClojureScript REPL that runs on Node.js and V8

#35

Post by [deleted] »

dozzie wrote: post #30
aaimnr wrote: post #12

Earlier quoted context omitted.

That's not true. One of the main objectives of Clojure was to be a hosted language. Not just 'language hosted on JVM'. So idea to make it work on top of Erlang VM is perfectly valid and consistent with original design assumptions.

> One of the main objectives of Clojure was to be a hosted language. Not just 'language hosted on JVM'. Uhm... I always thought it was meant to be a Lisp for JVM. Where did you get your information from?

[deleted]

Re: Lumo – A fast, standalone ClojureScript REPL that runs on Node.js and V8

#36

Post by cutler »

delegate wrote: post #11

The startup time is of course very low, so that's good. I think you're underselling the tool for beginners like myself - it's not just a ClojureScript REPL, it's actually an executable which can run node.js scripts written in clojurescript. For example, here's the typical node http server example: https://gist.github.com/anonymous/c14b2b57184c650d9f3ff0a9e1... You can run it with lumo test.cljs

How do I add Clojurescript libraries to my script? Doesn't that require a lein/boot cljs project?

Re: Lumo – A fast, standalone ClojureScript REPL that runs on Node.js and V8

#37

Post by mtrimpe »

shadowmint wrote: post #34
aaimnr wrote: post #12

Earlier quoted context omitted.

That's not true. One of the main objectives of Clojure was to be a hosted language. Not just 'language hosted on JVM'. So idea to make it work on top of Erlang VM is perfectly valid and consistent with original design assumptions.

Whether it's as important now or not is a different matter I suppose, with various targets for the language (including other VMs), but I don't think it's in dispute that originally the extensive java ecosystem was core to what clojure was, and was designed to be. ...but hey, don't take my word for it: The net result is that the prospects for Clojure going forward are very good. The core model of Clojure has held up w…

That might have referred to the CLR and the JVM though since Clojure has targeted both runtimes from the start (although the JVM implementation is leading of course.)

This talk should go into a bit more detail about this: https://channel9.msdn.com/blogs/charles/emerging-langs-cloju...

Re: Lumo – A fast, standalone ClojureScript REPL that runs on Node.js and V8

#38

Post by anmonteiro90 »

cutler wrote: post #36
delegate wrote: post #11

The startup time is of course very low, so that's good. I think you're underselling the tool for beginners like myself - it's not just a ClojureScript REPL, it's actually an executable which can run node.js scripts written in clojurescript. For example, here's the typical node http server example: https://gist.github.com/anonymous/c14b2b57184c650d9f3ff0a9e1... You can run it with lumo test.cljs

How do I add Clojurescript libraries to my script? Doesn't that require a lein/boot cljs project?

Lumo, just like Planck, implements classpath emulation. You can specify colon separated paths to JARs/dirs in which Lumo will resolve requires. Take a look at `lumo -h` for all the available options.

Re: Lumo – A fast, standalone ClojureScript REPL that runs on Node.js and V8

#39

Post by anmonteiro90 »

cutler wrote: post #31
delegate wrote: post #11

The startup time is of course very low, so that's good. I think you're underselling the tool for beginners like myself - it's not just a ClojureScript REPL, it's actually an executable which can run node.js scripts written in clojurescript. For example, here's the typical node http server example: https://gist.github.com/anonymous/c14b2b57184c650d9f3ff0a9e1... You can run it with lumo test.cljs

Considering it's running as a standalone script, how does it resolve its dependency on cljs.nodejs? That's a Clojurescript library, no?

There are a number of pre-bundled libraries in Lumo. `cljs.nodejs` is actually part of ClojureScript so it's included too.

Re: Lumo – A fast, standalone ClojureScript REPL that runs on Node.js and V8

#40

Post by anmonteiro90 »

lispm wrote: post #33

'fastest starting Clojure REPL'... which is still slow compared to alternatives.

Unfortunately, Node.js and V8 seem to be about 2.5X slower than JavaScriptCore for bootstrapped ClojureScript. I haven't found a way around it. I also don't mean to trick anyone and this is explained in the post.
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