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Facilitating high-level interactions between Wasm modules and JavaScript
335c0b1ab6
The default of Rust wasm binaries is to export the memory that they contain, but LLD also supports an `--import-memory` option where memory is imported into a module instead. It's looking like importing memory is along the lines of how shared memory wasm modules will work (they'll all import the same memory). This commit adds support to wasm-bindgen to support modules which import memory. Memory accessors are tweaked to no longer always assume that the wasm module exports its memory. Additionally JS bindings will create a `memory` option automatically because LLD always imports memory from an `env` module which won't actually exist. |
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| examples | ||
| guide | ||
| releases | ||
| src | ||
| tests | ||
| .appveyor.yml | ||
| .eslintignore | ||
| .eslintrc | ||
| .gitattributes | ||
| .gitignore | ||
| .travis.yml | ||
| Cargo.toml | ||
| CHANGELOG.md | ||
| CONTRIBUTING.md | ||
| LICENSE-APACHE | ||
| LICENSE-MIT | ||
| package-lock.json | ||
| package.json | ||
| README.md | ||
| yarn.lock | ||
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.