justaperson / lbi

Lua Bytecode Interpreter

Computer Science Niche 🔍

I've been programming as a hobby for over ten years. From very early on, I discovered an interest in systems programming long before I knew the field had a name. I've always been curious about computers really work under all the layers of abstractions. This has lead me to explore a number of fascinating topics like compilers, operating systems, databases, and CPU microarchitecture. It feels like understanding all these abstractions and how they really work on the inside helps inform me on how to properly utilize them.

I'm really interested in problems of performance engineering because they're a good place where I can apply my knowledge and they can require a lot of creativity.

What I'm Working on Lately 🔨

For the last year, my recreational programming efforts have been focused on writing my own C compiler. Nearly 100 commits and many thousands of lines of code later, it's not anywhere near being finished, but I'm still having a lot of fun working on it when I can. I'm taking the time to get some of the core data structures and representations right, because as a solo project, it might be very difficult to go back and re-lay the foundation at a later time.

lbi's Issues

Unexpected token 'run.lua' in expression or statement.

At line:1 char:6

• $lua run.lua

•  ~~~~~~~
  

Unexpected token 'run.lua' in expression or statement.
+ CategoryInfo : ParserError: (:) [], ParentContainsErrorRecordException
+ FullyQualifiedErrorId : UnexpectedToken

Inconsistency with actual lua (stack issue)

This repository hasn't been touched in ages but it is still useful so I would like to point something out to those who use it.
The program:

local functions = {}
for i = 1, 10 do
    functions[i] = function()
        print(i)
    end
end
functions[2]()
functions[9]()

real lua output:

2
9

lbi output:

10
10

I'm having trouble describing the problem with words so I hope the above example was enough for you to understand.

I would create a pull request if I knew how to fix this but the easiest work around for me was to use https://github.com/Rerumu/FiOne instead.