lovm2

lovm2 is a library for building your own programming language in the blink of an eye. It offers you easy to use constructs to generate bytecode for its virtual machine.

:warning: lovm2 is not actively maintained and might be subject to vulnerabilities.

Features

• Dynamic typing
• Generate bytecode using a High-Level Intermediate Representation
• Define own instructions as Interrupts
• Extend your programs with Rust: lovm2 extend
• Standard library included: lovm2_std
• Python bindings: pylovm2

Examples

Add this line to your Cargo.toml:

lovm2 = { git = "https://github.com/lausek/lovm2", rev = "d454b21" }

Resources

• The lovm2 Guide

Projects

• lol - a lisp language
• quasicode - the best language around

Generating Bytecode

use lovm2::prelude::*;

let mut module = LV2ModuleBuilder::new();

// declare the variables our code will use
let n = &lv2_var!(n);
// a module needs a code object called `main`
// if you want to make it runnable
let main_hir = module.entry();
// set the local variable n to 10
main_hir.assign(n, 10);
// `print` is a builtin function
main_hir.step(LV2Call::new("print").arg(n).arg("Hello World"));

// creates a `Module` from the `ModuleBuilder`
let module = module.build().unwrap();
println!("{}", module);

// load the module and run it
let mut vm = lovm2::create_vm_with_std();
vm.add_main_module(module).expect("load error");
vm.run().expect("run error");

Internal Source Code References

• Bytecode
• Context
• Vm

Customer Reviews

This Thing Fast - Sonic

And I thought I was simple... - Pythagorean Theorem