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Mini Pharo -> JavaScript translator?

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abergel

Mini Pharo -> JavaScript translator?

Hi!

Is there a simple way to translate Pharo code into Javascript?
There is Pharo JS, but I cannot load it in Pharo 6. There is the amber compiler, but I cannot find a version for Pharo.

Amber takes the approach of translating everything into JavaScript, including the Smalltalk object model. While this is great for fan of bootstrapping images, it produces large javascript code.

Is there a kind of Slang for JavaScript? I am looking for something minimal.

Cheers,
Alexandre
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Alexandre Bergel http://www.bergel.eu
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Hannes Hirzel

Re: Mini Pharo -> JavaScript translator?

On 3/10/17, Alexandre Bergel <[hidden email]> wrote:

> Hi!
>
> Is there a simple way to translate Pharo code into Javascript?
> There is Pharo JS, but I cannot load it in Pharo 6. There is the amber
> compiler, but I cannot find a version for Pharo.
>
> Amber takes the approach of translating everything into JavaScript,
> including the Smalltalk object model. While this is great for fan of
> bootstrapping images, it produces large javascript code.
>
> Is there a kind of Slang for JavaScript? I am looking for something
> minimal.
>
> Cheers,
> Alexandre

Hello Alexandre

Something like this
https://github.com/ympbyc/LittleSmallscript

or

http://wiki.squeak.org/squeak/5860 which refers to
http://www.squeaksource.com/@xxu3r2Ma7SbqJi3E/1j-SgMCf (74000 downloads).

People have used it successfully.

There is probably a Pharo port.

--Hannes

Ben Coman

Re: Mini Pharo -> JavaScript translator?

On Sat, Mar 11, 2017 at 1:16 PM, H. Hirzel <[hidden email]> wrote:
> http://www.squeaksource.com/@xxu3r2Ma7SbqJi3E/1j-SgMCf (74000 downloads).

Hi Hannes,

That link doesn't work. You need to pick the html one under "Links" heading
half way down the project page.

cheers -ben

kilon.alios

Re: Mini Pharo -> JavaScript translator?

In reply to this post by abergel

A potential solution would be Pharo -> Slang -> C -> Javascript

Slang converts pharo code to C and Emacscripten converts C to Javascript. This approach also should produce minimal JS code but it wont be readable.

This C to Js approach also has the advantage of being able to utilize webassembly and asm.js to provide high performance JS code something that other approaches that go directly from Pharo to JS will struggle with.

The reason being that tools that support these approaches tend to more heavily optimize the generated JS code.

The catch here is that you will have to understand both C and JS to iron out potential issues. So this means this is definitely not a "simple way to translate Pharo code into JS" as you requested.