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https://github.com/anima-engine/mrusty

mruby safe bindings for Rust
https://github.com/anima-engine/mrusty

bridge mruby ruby rust

Last synced: 2 days ago
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mruby safe bindings for Rust

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# mrusty. mruby safe bindings for Rust

[![Build Status](https://travis-ci.org/anima-engine/mrusty.svg?branch=master)](https://travis-ci.org/anima-engine/mrusty)

[![Coverage Status](https://coveralls.io/repos/github/anima-engine/mrusty/badge.svg?branch=master)](https://coveralls.io/github/anima-engine/mrusty?branch=master)

[![Cargo Crate](http://meritbadge.herokuapp.com/mrusty)](https://crates.io/crates/mrusty)



mrusty lets you:



* run Ruby 1.9 files with a very restricted API (without having to install Ruby)

* reflect Rust `struct`s and `enum`s in mruby and run them



It does all this in a safely neat way, while also bringing spec testing and a

REPL to the table.



## [Documentation](http://anima-engine.github.io/mrusty/)



## Example

A very simple example of a Container `struct` which will be passed to mruby and

which is perfectly callable.

```rust

// mrusty_class!

#[macro_use]

extern crate mrusty;



use mrusty::{Mruby, MrubyImpl};



let mruby = Mruby::new();



struct Cont {

    value: i32

}



// Cont should not flood the current namespace. We will add it with require.

mrusty_class!(Cont, "Container", {

    // Converts mruby types automatically & safely.

    def!("initialize", |v: i32| {

        Cont { value: v }

    });



    // Converts slf to Cont.

    def!("value", |mruby, slf: (&Cont)| {

        mruby.fixnum(slf.value)

    });

});



// Add file to the context, making it requirable.

mruby.def_file::("cont");



// Add spec testing.

describe!(Cont, "

  context 'when containing 1' do

    it 'returns 1 when calling #value' do

      expect(Container.new(1).value).to eql 1

    end

  end

");



let result = mruby.run("

  require 'cont'



  Container.new(3).value

").unwrap(); // Returns Value.



println!("{}", result.to_i32().unwrap()); // Prints "3".

```