Advent of Code 2023

Advent of Code 2023 solutions in Lua

Challenges

• use third-party libraries
• use coroutines in a non-trivial way
• write Lua idiomatic code
• parallelize a solution (lanes)
• use FFI in LuaJIT; use Lua's C API
• try dialects
  • Teal
  • moonscript
  • shine
• write in a functional programming style (maybe use luafun)
• write in an object-oriented programming style (OOP)
• since ordered sets and maps are not part of the std, write them yourself
• use metatables
• if a suitable problem comes up, use scilua
• confirm to a style guide 1 2
• use common tools of the Lua ecosystem
  • package manager, https://luarocks.org/
  • static analyzer and linter, https://github.com/mpeterv/luacheck
  • tests, https://github.com/lunarmodules/busted
  • with coverage, https://github.com/lunarmodules/luacov
• explore meta programming
  • use pattern matching in MetaLua (and other extensions)

Notes

• https://www.luafaq.org/
• http://lua-users.org/wiki/SampleCode