lovm2

Crates.iolovm2
lib.rslovm2
version0.4.8
sourcesrc
created_at2020-06-29 16:43:01.156834
updated_at2021-02-04 13:54:50.508605
descriptiona lightweight virtual machine with a focus on simplicity and extendability.
homepagehttps://github.com/lausek/lovm2
repositoryhttps://github.com/lausek/lovm2
max_upload_size
id259474
size111,701
(lausek)

documentation

README

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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.

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 = "0.4.8"

Projects

Generating Bytecode

use lovm2::prelude::*;

let mut module = ModuleBuilder::new();

// 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.step(Assign::local(&lv2_var!(n), 10));

// `print` is a builtin function. the `lv2_var!` macro
// ensures that the given identifier is not confused
// with a string.
main_hir.step(Call::new("print").arg(lv2_var!(n)).arg("Hello World"));
// ... this is equivalent to the developer-friendly version:
main_hir.step(lv2_call!(print, n, "Hello World"));

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

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

Internal Source Code References

Customer Reviews

This Thing Fast - Sonic

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

Commit count: 617

cargo fmt