Well, hopefully someday the allocations/processing/interpretation/compilation 
isn't happening on the audio thread :)

I think JIT compilation shouldn't necessarily be shied away from given 
class/object creation isn't realtime-safe anyways, and how much slower is it 
actually?
Imo JIT compilation to lower-level should be considered more, like for [expr~] 
or maybe some heavy-like patch compiler thing that can do some of what gen~ 
does.

somewhat off-topic: there are also some cool compiled lua-inspired languages 
like terra and nelua (which I was thinking of switching to for the project I 
was using luajit/pdlua for anyways)


-seb

 On Wednesday, October 2, 2024 at 11:39:30 AM CDT, Christof Ressi 
<i...@christofressi.com> wrote:
On 02.10.2024 18:30, Timothy Schoen wrote:
> Currently, pdlua is not compatible with luaJIT, since it was updated 
> to Lua 5.4 (and uses some of the new features internally). It's 
> possible to port it back to luaJIT by taking out all the new Lua bits.
>
> Both have some advantages and disadvantages. But for me, regular Lua 
> would win (but only by a small amount). The reason is: it's 
> architecturally simpler, more mainstream, more widely used/tested, and 
> (in my estimation) more likely to be maintained for a very long time. 
> luaJIT is very fast, so I'm not opposed to it either. Having any kind 
> of scripting for objects available at all is the most important thing 
> here 🙂

If LuaJIT stopped working for whatever reason, we could still use 
vanilla Lua 5.1 - which will continue to work as long as we have C 
compilers :) Lua is a bit peculiar in that every minor version is really 
a different language. Once you pick a Lua version, you typically don't 
upgrade, unless there is some very compelling reason.

Personally, I'm using Lua 5.3 and I would also tend towards Lua 5.3 or 
5.4. We just have to be aware that once we pick a version, we basically 
have to stick with it because of backwards compatibility.

Christof

>
>
> Tim
>
>
> On 02/10/2024 16:09, Sebastian Shader via Pd-list wrote:
>> I know it's old but I think for lua in pd luaJit should be considered 
>> if adding a lua.
>> Imo they took out a very powerful feature in setfenv after 5.1 anyways.
>>
>> Luajit was still working with pdlua last I checked.
>> Plus pd messages only use floats.
>>
>> -Seb
>>
>>
>>   On Wednesday, October 2, 2024 at 05:27:03 AM CDT, Timothy Schoen 
>> <timschoen...@gmail.com> wrote:
>>
>> Yeah, +1 for pdlua for me!
>>
>> Here's a few more reasons I'd love to see this:
>>
>>            * pdlua objects require vastly less boiler-plate code than 
>> C externals. Especially for signals and graphics, it takes care of 
>> all the hard parts and common pitfalls for you.
>>
>>            * As a result, creating pdlua objects is much more 
>> beginner friendly, and experienced programmers are less likely to 
>> make mistakes. Not requiring compilation makes writing coded 
>> externals as accessible as abstractions are currently.
>>
>>           * The biggest weakness for a project like pdlua is needing 
>> to be installed manually. This discourages people from directly 
>> uploading their Lua objects on Deken. Like porres said, ELSE now 
>> ships with pdlua just so that we can ship lua objects. It would be 
>> amazing if we could assume them to just work.
>>
>>           * As you might know, Lua is very compact, it can be 
>> compiled by adding "onelua.c" to your sources, and it has no external 
>> dependencies. For ease of maintenance, it's as good at it gets. Lua 
>> is also fast for a scripting language. Seems like the perfect fit for 
>> pure-data.
>>
>>
>> If you want a sample of the API, here's the documentation for pdlua 
>> graphics: 
>> https://agraef.github.io/pd-lua/tutorial/pd-lua-intro.html#graphics
>>
>> Tim
>>
>>
>>
>>
>> On 02/10/2024 06:12, Alexandre wrote:
>>
>>
>>>
>>>
>>>
>>> Let me share Tim's thoughts he sent me via a chat about coding 
>>> externals in lua, which I think are a perfect sell. Compared to C 
>>> externals, lua externals:
>>>            * Encourages open-source, since the source code is the 
>>> object
>>>           * Works on every OS, architecture, pd floatsize, 
>>> multi-instance, all without needing recompilation
>>>           * You can easily modify objects if you want to
>>>           * GUIs are now much easier to write with Lua than with C
>>>           * Are guaranteed to keep working even if Pd's C API 
>>> changes, or Pd changes GUI framework
>>>           * Are guaranteed to work across Pd forks, as long as they 
>>> correctly implement the lua API
>>>
>>>
>>>
>>>
>>>
>>>
>>>    Em ter., 1 de out. de 2024 às 15:36, Alexandre <por...@gmail.com> 
>>> escreveu:
>>>
>>>
>>>>       Em seg., 30 de set. de 2024 às 16:59, Christof Ressi 
>>>> <i...@christofressi.com> escreveu:
>>>>
>>>>
>>>>>>>>>    Thanks to Antoine for mentioning pdlua! I will need to 
>>>>>>>>> check it out. I have already seen people doing some very cool 
>>>>>>>>> stuff with it. Maybe they already have the perfect solution :)
>>>>>>>>>
>>>>>>>>>
>>>>>>>> I'm also looking at pdlua, which might want to become the 
>>>>>>>> official way to make graphical externs AND to add scripting in 
>>>>>>>> a fundamental way to Pd :)
>>>>>>>>
>>>>>> +1 for an official scripting language! :) (I love Lua, BTW.) And 
>>>>>> yes, it would make lots of sense to leverage the scripting 
>>>>>> language to implement custom UIs!
>>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>>
>>>> +1k
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> Yay, great to hear that! BTW, I remembered about this ticket we 
>>>> opened years ago inquiring about adding lua to Pd 
>>>> natively! https://github.com/pure-data/pure-data/issues/687
>>>>
>>>>
>>>>
>>>>
>>>> Now that Tim is doing great work for graphics, this would be even 
>>>> more awesome! And I wouldn't have to worry in shipping it in ELSE 
>>>> for some externals that already use it :)
>>>>
>>>>
>>>>
>>>>
>>>> cheers
>>>>
>>>>
>>>>
>>>
>>>
>>>
>>>
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