luau
cyber
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luau
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Building a baseline JIT for Lua automatically
As far as I can tell, they aren't.
http://lua-users.org/wiki/SandBoxes
There is a lot of information there, but it doesn't handle resource exhaustion, execution time limits or give any guarantees. It does indicate that it's possible, and has a decent example of the most restrictive setup, which is a good start. But I would for example compare it with Luau's SECURITY.md.
From https://github.com/luau-lang/luau/blob/master/SECURITY.md:
> Luau provides a safe sandbox that scripts can not escape from, short of vulnerabilities in custom C functions exposed by the host. This includes the virtual machine and builtin libraries. Notably this currently does not include the work-in-progress native code generation facilities.
> Any source code can not result in memory safety errors or crashes during its compilation or execution. Violations of memory safety are considered vulnerabilities.
> Note that Luau does not provide termination guarantees - some code may exhaust CPU or RAM resources on the system during compilation or execution.
So, even luau will have trouble with untrusted code, but it specifies exactly what happens and so on. I think that's fair enough.
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Pluto, a Modern Lua Dialect
Alternatively, Luau is a well-supported Lua variant with type checking and performance improvements, aimed more towards being a sandboxed embedded scripting environment.
https://luau-lang.org/
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Buzz: A lightweight statically typed scripting language
If you need Lua but also type-safety, how about Luau [1] then?
[1] https://luau-lang.org/
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Lua Criticism Is Unwarranted
I had the pleasure of working with Lua 5.1 back in the late noughties. For me it's replaced Tcl whenever I want something I can configure above a C library. At the time I used it I found it quite nice but I'll also not forget the hours I wasted tracking down nil table corruptions which could have easily been caught by a type checker.
I had some hope that Luau https://luau-lang.org or Teal https://github.com/teal-language/tl would make things better but with the following example
function foo(x: number): string
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Ask HN: Looking for platforms, other than Roblox, that have adopted Luau
Looking at other replies here, I can see I wasn't the only one who didn't realize there is Lua and Luau. Luau is an extension of Lua: https://luau-lang.org/
> Luau is syntactically backwards-compatible with Lua 5.1 (code that is valid Lua 5.1 is also valid Luau); however, we have extended the language with a set of syntactical features that make the language more familiar and ergonomic.
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Embeddable Common Lisp 23.9.9
Lua is usually the embedded language of choice. If you are focused on security, you could check out the Roblox fork, Luau (https://github.com/Roblox/luau) where the creators took extra care to lock down the language on what scripts could do.
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Creating a simple sandboxed language
Luau - Lua variant by Roblox
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The Warframe Lexicon for Updates
On a side note, I've heard that they recently switched from Lua to Roblox's own fork of Lua, Luau.
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Lua: The Little Language That Could
https://www.youtube.com/results?search_query=luau+roblox&sp=...
Luau
https://github.com/Roblox/luau
Roblox wrote a superset of Roblox Lua which is way faster
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Scripting Resources MegaThread
https://luau-lang.org/ - some documentation, and examples https://create.roblox.com/docs - documentation, tutorials, and examples https://www.youtube.com/user/AlvinBLOX - tutorials https://www.youtube.com/@TheDevKing/videos - tutorials https://www.lua.org/manual/5.1/ - not specific to Roblox, but Lua reference manual https://www.codecademy.com/learn/learn-lua - Lua on Codecademy
cyber
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ChatGPT4 can now write entire applications
The language is Cyber, an embedable scripting language written in Zig: https://cyberscript.dev/
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Announcement: the Diatom programming language v0.6.0.alpha
Nice work! I’m always on the lookout for new Lua-likes as a prospective gamedev scripting language. Recently I came by one quite similar to Diatom called Cyber; well worth a look.
- Cyber 0.2 - Modules, gamedev, fast strings.
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Cyber 0.2 - A scripting language written in Zig.
Yeah that's weird. Definitely better than as though.
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Bog – small, strongly typed, embeddable language
> more strongly typed alternatives
See also this list for comparison https://github.com/fubark/cyber/issues/6, if you dont want lua by a meta-compiler.
If you want non-allocating scripting for optimal performance (and io limited to what you provide as buffer), go for https://dascript.org/. I dont think there are currently other projects with that performance (+ also inspired by Zig).
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Cyber is a new language for fast, efficient, and concurrent scripting
From the GitHub page, here are some binary releases: https://github.com/fubark/cyber/releases
What are some alternatives?
lua-languages - Languages that compile to Lua
nvim-cyber - Syntax Highlighting for the Cyber Scripting Language for NeoVim
LuaJIT - Mirror of the LuaJIT git repository
extempore - A cyber-physical programming environment
moonsharp - An interpreter for the Lua language, written entirely in C# for the .NET, Mono, Xamarin and Unity3D platforms, including handy remote debugger facilities.
ui-monorepo - ChainSafe Files & Storage UI Monorepo
lua-language-server - A language server that offers Lua language support - programmed in Lua
terra - Terra is a low-level system programming language that is embedded in and meta-programmed by the Lua programming language.
tl - The compiler for Teal, a typed dialect of Lua
bog - Small, strongly typed, embeddable language.
moonscript - :crescent_moon: A language that compiles to Lua
cybergift - Gift for Ethereum, Cosmos, Osmosis and Terra users that will maximize the initial usage of Cyber