mirror of
https://github.com/fluencelabs/wasm-bindgen
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bdec2582aa
* Make ConvertToAst trait fallible It's got some panics, and we'll be switching those to errors! * First example of a diagnostic-driven error Add a diagnostic-driven error `#[wasm_bindgen]` being attached to public functions, and add some macros to boot to make it easier to generate errors! * Result-ify `src/parser.rs` This commit converts all of `src/parser.rs` away from panics to using `Diagnostic` instead. Along the way this adds a test case per changed `panic!`, ensuring that we don't regress in these areas!
wasm-bindgen
Facilitating high-level interactions between wasm modules and JavaScript.
Import JavaScript things into Rust and export Rust things to JavaScript.
#![feature(use_extern_macros)]
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.