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No news yet. Luau is very different from vanilla Lua and couple of weeks ago even didn't have C interface.
Although I'm not sure about the current status of C interface (how usable is it).
Just curious, is there any advantages to use Luau instead of normal Lua or luajit?
This is covered in their docs but essentially the tl;dr is that it is progressively typed and the performance is on-par with LuaJIT in certain cases and outperforms standard Lua in all cases. Roblox could never use JIT themselves because certain target platforms either do not support it or do now allow it (e.g. Apple with iOS).
It's based on Lua 5.1 but sprinkles in some of the best parts of later Lua versions. Luau has an amazing sandbox built-in which can guarantee* safety, even when running completely arbitrary and actively malicious code - perfect for game mods etc. The sandbox also has support for interrupts, which is pretty nice.
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khvzak commentedon Jun 28, 2021
Luau does not support object finalizers (__gc metamethod) that makes it impossible to use with Rust.
Milo123459 commentedon Jun 28, 2021
Oh. Is there no work around?
khvzak commentedon Jun 28, 2021
By the way, I cannot find link to download Luau source code. Apparently it's a commercial product not publicly available.
Milo123459 commentedon Jun 28, 2021
I think there is a luau compiler?
Milo123459 commentedon Jun 28, 2021
Or - just use Lua 5.1 and add the type system.
Milo123459 commentedon Nov 3, 2021
https://github.com/Roblox/luau has now been opensourced.
khvzak commentedon Nov 3, 2021
This is great news, I'll take a look, thanks!
Milo123459 commentedon Dec 30, 2021
Any updates? Hate to bump, but genuinely curious.
khvzak commentedon Dec 31, 2021
No news yet. Luau is very different from vanilla Lua and couple of weeks ago even didn't have C interface.
Although I'm not sure about the current status of C interface (how usable is it).
khvzak commentedon Dec 31, 2021
Just curious, is there any advantages to use Luau instead of normal Lua or luajit?
Milo123459 commentedon Dec 31, 2021
To be honest, I like using it for the types. It has TypeScript like types, which makes me more or less feel at home with it.
ildar commentedon Jan 3, 2022
Milo123459 commentedon Jan 3, 2022
There are also some other beta-features that I would like to use in Luau. Still, Teal does satisfy me (I use it a lot) this would be cool, still.
BrookenRecord commentedon Jan 12, 2022
Luau support would be great.
This is covered in their docs but essentially the tl;dr is that it is progressively typed and the performance is on-par with LuaJIT in certain cases and outperforms standard Lua in all cases. Roblox could never use JIT themselves because certain target platforms either do not support it or do now allow it (e.g. Apple with iOS).
It's based on Lua 5.1 but sprinkles in some of the best parts of later Lua versions. Luau has an amazing sandbox built-in which can guarantee* safety, even when running completely arbitrary and actively malicious code - perfect for game mods etc. The sandbox also has support for interrupts, which is pretty nice.
khvzak commentedon Feb 23, 2022
I pushed initial Luau support to the dev branch
It passes tests and works in vendored only mode by default.
So the next mlua v0.8 will get luau support including emulating some of the missed features like userdata values,
require, etc.khvzak commentedon Mar 22, 2022
just released
v0.8.0-beta.1with Luau support