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https://github.com/fluencelabs/wasm-bindgen
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61491eafbf
This commit adds experimental support for `WeakRef` to be used to automatically free wasm objects instead of having to always call the `free` function manually. Note that when enabled the `free` function for all exported objects is still generated, it's just optionally invoked by the application. Support isn't exposed through a CLI flag right now due to the early stages of the `WeakRef` proposal, but the env var `WASM_BINDGEN_WEAKREF` can be used to enable this generation. Upon doing so the output can then be edited slightly as well to work in the SpiderMonkey shell and it looks like this is working! Closes #704
wasm-bindgen
Facilitating high-level interactions between wasm modules and JavaScript.
Import JavaScript things into Rust and export Rust things to JavaScript.
extern crate wasm_bindgen;
use wasm_bindgen::prelude::*;
// Import the `window.alert` function from the Web.
#[wasm_bindgen]
extern {
fn alert(s: &str);
}
// Export a `greet` function from Rust to JavaScript, that alerts a
// hello message.
#[wasm_bindgen]
pub fn greet(name: &str) {
alert(&format!("Hello, {}!", name));
}
Use exported Rust things from JavaScript with ECMAScript modules!
import { greet } from "./hello_world";
greet("World!");
Guide
📚 Read the wasm-bindgen guide here! 📚
License
This project is licensed under either of
- Apache License, Version 2.0, (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
- MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)
at your option.
Contribution
See the "Contributing" section of the guide for information on
hacking on wasm-bindgen!
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in this project by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.