https://github.com/eatonphil/lust

A parser, compiler, and virtual machine evaluator for a minimal subset of Lua; written from scratch in Rust.
https://github.com/eatonphil/lust

compiler interpreter lua rust virtual-machine

Last synced: 3 months ago
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A parser, compiler, and virtual machine evaluator for a minimal subset of Lua; written from scratch in Rust.

• Host: GitHub
• URL: https://github.com/eatonphil/lust
• Owner: eatonphil
• License: other
• Created: 2021-12-28T03:27:00.000Z (about 3 years ago)
• Default Branch: main
• Last Pushed: 2021-12-29T19:51:58.000Z (about 3 years ago)
• Last Synced: 2024-10-13T04:12:46.032Z (3 months ago)
• Topics: compiler, interpreter, lua, rust, virtual-machine
• Language: Rust
• Homepage:
• Size: 37.1 KB
• Stars: 188
• Watchers: 5
• Forks: 11
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.md

Awesome Lists containing this project

README

        
# lust: Lua in Rust

This project implements a parser, compiler, and virtual machine

evaluator for a minimal subset of Lua. It is written from scratch in

Rust.

See the companion blog post, [Writing a minimal Lua implementation

with a virtual machine from scratch in Rust

](https://notes.eatonphil.com/lua-in-rust.html), for a guided

walkthrough of the code.

## Example

```bash

$ cargo build --release

$ cat test/fib.lua

function fib(n)

   if n < 2 then

      return n;

   end

   local n1 = fib(n-1);

   local n2 = fib(n-2);

   return n1 + n2;

end

print(fib(30));

$ time ./target/release/lust test/fib.lua

832040

./target/release/lust test/fib.lua  0.29s user 0.00s system 99% cpu 0.293 total

$ time lua test/fib.lua

832040

lua test/fib.lua  0.06s user 0.00s system 99% cpu 0.063 total

```

## More examples

See the test directory.