[HN Gopher] Nelua: AOT statically typed Lua ___________________________________________________________________ Nelua: AOT statically typed Lua Author : gatane Score : 56 points Date : 2023-01-26 19:56 UTC (3 hours ago) (HTM) web link (nelua.io) (TXT) w3m dump (nelua.io) | karmakaze wrote: | "Nelua is a systems programming language for performance | sensitive applications, like real-time applications and game | engines. Its syntax and semantics are similar to Lua, but its | garbage collection is optional, it provides optional type | notations, and it is free from an interpreter. Nelua uses ahead- | of-time compilation to generate optimized native binaries. It is | metaprogrammable at compile-time using Lua and it is simple and | easy to use." | | This seems to mean that you can't drop a Nelua script into a | game/engine and use it. You have to compile the script and link | with the game? Something with either an interpreted mode or | runtime code generation seems more appropriate. | stefanos82 wrote: | If you are interested, the README.md [1] explains everything in | detail. | | [1] https://github.com/edubart/nelua-lang#about | Kukumber wrote: | Many languages to choose from, that's great | | I wish the same could be said about tooling | | How is the debugging story? gdb/ldb compatible? does it support | its types? | | Is there a language server available? formatter? | Benjamin_Dobell wrote: | I want to start adding support for Lua derivatives to my IDE - | which adds static type checking to regular Lua. Inference, | structural & nominal types, generics etc. (Luanalysis - | https://github.com/Benjamin-Dobell/IntelliJ-Luanalysis/) | | I feel like plugin support would be best but I've no idea how | that's supposed to work in the presence of a predefined grammar. | There's also so many variants I don't think there's a good way to | build out a composite grammar. | | Does anyone have any ideas about modular/extendable language | parsing? For reference, I'm using | https://github.com/JetBrains/Grammar-Kit. | JonChesterfield wrote: | The FAQ doesn't cover "how does this differ from lua", but | overview contains the disclaimer: | | > not all Lua features are implemented yet. Most of the dynamic | parts, such as tables and handling dynamic types at runtime | | It has coroutines to some extent | | > At the moment Nelua does not support variable arguments in | yield and resume (unlikely Lua). | | It also extends lua primitives - lots of control flow things, | arrays and records which look like tables but are passed by | value, not by reference. | | So it's an ahead of time statically typed language which looks | somewhat like lua. Compiled to C, no interpreter. It says it's | meta-programmable using lua which I assume is really confusing | given the two languages look similar and behave differently. | yellowapple wrote: | The million dollar question: has anyone written a Lua interpreter | in Nelua yet? | nerpderp82 wrote: | Similar to Terra https://terralang.org/ | VWWHFSfQ wrote: | Can I transpile this "Lua" to LuaJIT (5.1/5.2) and run it in | nginx? | snacktaster wrote: | LuaJIT + nginx event loop is probably the fastest network | runtime in existence. Is there a faster one? In terms of | writing high-level code that executes at the speed of the | machine. | lerchmo wrote: | https://www.techempower.com/benchmarks/#section=data-r21 | | (openresty) is luajit + nginx | turtledragonfly wrote: | I low-key dislike when people nitpick titles, but in this case | I'll do it (: | | The title makes it sound like this is a variant of Lua, or | somehow largely compatible. | | The page itself is more clear, calling it a "programming language | with a Lua flavor". | | Emphasis on "flavor". | | I feel like the list of differences from Lua is about as big as | the similarities, and it's definitely not a drop-in replacement, | at least in its current form (contrast with something like | LuaJIT). | shadowofneptune wrote: | Of the features to selectively take from Lua, the syntax is one | I like. Pascal-style syntax does not have the statement | separation issues a more expression-rich language like | JavaScript has. It not only does not have statement separators, | it is almost completely whitespace agnostic. | | As a strategy to get adopters, it could also have value. | There's a small but widely spread group of people who have been | exposed to Lua in various games and programs. | [deleted] | dang wrote: | Related: | | _Nelua Programming Language_ - | https://news.ycombinator.com/item?id=28293836 - Aug 2021 (118 | comments) ___________________________________________________________________ (page generated 2023-01-26 23:00 UTC)