RustScript2 VS Cwerg

I'm working on https://github.com/mkhan45/RustScript_v2. Of course you can tell from the name it's a bit of a joke but I started writing it just to learn OCaml but I made so much progress so quickly and soon I'll implement a few web server builtins so I can rewrite my personal website in it.

Cwerg has backend that can be used as JIT and is written with readability in mind. Additional documentation can be found here: https://github.com/robertmuth/Cwerg/tree/master/Docs

entire compiler front end ast nodes

I was also going down the path of bike shedding concrete syntax for my language Cwerg before pulling the plug on that effort and just using s-exprs. I managed to make the s-expr quite succinct by carefully choosing the order of arguments so I can omit optional ones. Also very helpful was to use square brackets for list, e.g. (call fun-name [arg1 arg2]). This simplifies parsing a little bit and is easier on the eye. Here are some Code Examples

I am iterating over the languages features for Cwerg's Frontend which aims to be a low level language with about the complexity of C but with some of the comforts of modern languages. I am especially happy with the choice of adding sum types. Relative to C the current feature set looks like this: Removed: * arrays decay to pointers * bitfields * separate compilation (more of a backend issue) * pre-processor * varargs * implcit type conversions * (untagged) unions * ++/-- * comma operator * implicitly nullable pointers * goto

Current work is focused on finding the right feature set. After spending way too much time on thinking about a concrete syntax I decided to instead work on the AST and use S-Expr to serialize it. I plan on sticking with the S-Expr as the "file format" and offer tooling to go back and forth to the yet to be defined concrete syntax.

Shameless plug: Cwerg can be used as a JIT for x86-64, Aarch64 and Arm32.

You can find the code at Cwerg

Shameless plug: Cwerg is aiming for that niche