quickjs-rs

A Rust wrapper for QuickJS.

QuickJS is a new, small Javascript engine by Fabrice Bellard. It is fast and supports the full ES2020 specification.

This crate allows you to easily run and integrate with Javascript code from Rust.

Limitations

• Windows is not supported yet

Usage

toml [dependencies] quick-js = "0.2.2"

```rust use quick_js::{Context, JsValue};

let context = Context::new().unwrap();

// Eval.

let value = context.eval("1 + 2").unwrap(); assert_eq!(value, JsValue::Int(3));

let value = context.evalas::(" var x = 100 + 250; x.toString() ").unwrap(); asserteq!(&value, "350");

// Callbacks.

context.add_callback("myCallback", |a: i32, b: i32| a + b).unwrap();

context.eval(r#" // x will equal 30 var x = myCallback(10, 20); "#).unwrap(); ```

Installation

By default, quickjs is bundled with the libquickjs-sys crate and automatically compiled, assuming you have the appropriate dependencies.

If you would like to use a system version instead, see below.

QuickJS will always be statically linked to your binary.

Features

The crate supports the following features:

• chrono: adds chrono integration
  • adds a JsValue::Date variant that can be (de)serialized to/from a JS Date
• patched: applies QuickJS patches that can be found in libquickjs-sys/embed/patches directory.

System installation

To use the system installation, without the bundled feature, first install the required dependencies, and then compile and install quickjs.

```bash

Debian/Ubuntu: apt-get install -y curl xz-utils build-essential gcc-multilib libclang-dev clang

mkdir quickjs curl -L https://bellard.org/quickjs/quickjs-2019-07-09.tar.xz | tar xJv -C quickjs --strip-components 1 cd quickjs sudo make install ```