quickjs-wasm-rs

High-level bindings and serializers for a Wasm build of QuickJS.

Bindings

Context corresponds to a QuickJS JSContext and Value corresponds to a QuickJS JSValue.

use quickjs_wasm_rs::Context;

let mut context = Context::default();

will create a new context.

Serializers

This crate provides optional transcoding features for converting between serialization formats and Value:

• messagepack provides quickjs_wasm_rs::messagepack for msgpack, using rmp_serde.
• json provides quickjs_wasm_rs::json for JSON, using serde_json.

msgpack example:

use quickjs_wasm_rs::{messagepack, Context, Value};

let context = Context::default();
let input_bytes: &[u8] = ...;
let input_value = messagepack::transcode_input(&context, input_bytes).unwrap();
let output_value: Value = ...;
let output = messagepack::transcode_output(output_value).unwrap();

Building a project using this crate

• Install the wasi-sdk for your platform
• Set the QUICKJS_WASM_SYS_WASI_SDK_PATH environment variable to the absolute path where you installed the wasi-sdk

For example, if you install the wasi-sdk in /opt/wasi-sdk, you can run:

export QUICKJS_WASM_SYS_WASI_SDK_PATH=/opt/wasi-sdk

Publishing to crates.io

To publish this crate to crates.io, run ./publish.sh.