Adding `javy` library as a dependency

Run this command in a terminal, in your project's directory:

cargo add javy

To add it manually, edit your project's Cargo.toml file and add to the [dependencies] section:

javy = "6.0.0"

The javy library will be automatically available globally. Read the javy library documentation.

Back to the crate overview.

Readme

`Javy`

A configurable JavaScript runtime for WebAssembly

Uses QuickJS through the rquickjs crate to evalulate JavaScript source code or QuickJS bytecode.

Refer to the crate level documentation to learn more.

Example usage:

use anyhow::Result;
use javy::quickjs::{
   function::{MutFn, Rest},
   Ctx, Function, Value
};
use javy::{from_js_error, Runtime};

fn main() -> Result<()> {
    let runtime = Runtime::default();
    let context = runtime.context();

    context.with(|cx| {
        let globals = cx.globals();
        globals.set(
            "print_hello",
            Function::new(
                cx.clone(),
                MutFn::new(|_: Ctx<'_>, _: Rest<Value<'_>>| {
                    println!("Hello, world!");
                }),
            )?,
        )
    })?;

    context.with(|cx| {
        cx.eval_with_options("print_hello();", Default::default())
            .map_err(|e| from_js_error(cx.clone(), e))
            .map(|_: ()| ())
    })?;

    Ok(())
}

Publishing to crates.io

To publish this crate to crates.io, run ./publish.sh. You will likely need to run git submodule deinit test262 so the working tree is small enough for the publishing to succeed.

Adding javy library as a dependency

Adding `javy` library as a dependency