Lua Notes

nelua notes

• nelua caveats
• nelua q&a
• nelua complaints
• dynamic-language features
• nelua wishlist

nelua basics

• correctness - warnings, checks
• nelua configuration - neluacfg.lua, etc.
• modules
• string type conversions
• the toplevel
• enums
• iterators
• coroutines
• pragmas and annotations
• generics
• discriminated unions
• threads - examples/threads

nelua code generation

• getch FFI - manual bindings with C constants and use of partially-documented C structs
• getch FFI with nldecl
• confirming code generation - is *[0]cstring the right type for this binding?

tooling cookbook

• Cross-compile with Zig
• Vim setup
• Run nelua 'scripts'
• Run tests
• Hot-code loading
• nldecl - generate FFI bindings
• augmented Lua
• interdict function calls

preprocessor cookbook

• alternatives to C __FILE__ and friends
• populate a record by key order
• populate a string array with a shell oneliner
• merge namespaces
• aliasing fields
• file-relative paths
• include files -- without having to require them
• accessing hidden code - say, for testing
• short fn syntax
• inc/dec macro
• one-liner templates
• Let Over Lambda
• Compile-time Counters

memory management series

• the nil allocator
• statically-allocated lists
• spooky gc behavior - posted on Halloween

my stuff

• nelua raylib examples (vid) - github
• csvbench - going from 45s runtime to 131ms - github
• chrestomathy - kal - a calorie counter

design

• light advocacy - say something nice
• nelua quotes
• nelua roadmap
• lua minimalism
• Mechanism, Not Policy
• Zero Is Initialization
• enums requiring a first value

fooling

• odin any type
• compile-time FizzBuzz

links

• gh wiki - awesome nelua, automatic swizzling, speeding up compilation
• edubart/nelua-batteries - json, bigint, sqlite, etc.
• AuzFox/Raylib.nelua
• Andre-LA - has several nelua/wasm games
• nsauzede/realist - raytracing chrestomathy including Nelua

lua-related links

• Ravi - Lua 5.3 + static typing (for optimization)
• Teal - Lua + types (for fewer errors)
• Terra - similar from a distance to Nelua: a low-level language that's metaprogrammed by Lua
• pallene - "intended for writing performance sensitive code that interacts with Lua, a space that is currently filled by C modules and by LuaJIT."
• yuin/gopher-lua Lua 5.1 as a Go extension language
• https://leafo.net/posts/itchio-and-coroutines.html
• https://randygaul.github.io/cute_framework/#/topics/coroutines
• https://edw.is/how-to-implement-action-sequences-and-cutscenes/