## Install `wasm-bindgen-cli`
You can install it using `cargo install`:
```
cargo install wasm-bindgen-cli
```
Or, you can download it from the
[release page](https://github.com/rustwasm/wasm-bindgen/releases).
If you have [`cargo-binstall`](https://crates.io/crates/cargo-binstall) installed,
then you can install the pre-built artifacts by running:
```
cargo binstall wasm-bindgen-cli
```
## Example
Import JavaScript things into Rust and export Rust things to JavaScript.
```rust
use wasm_bindgen::prelude::*;
// Import the `window.alert` function from the Web.
#[wasm_bindgen]
extern "C" {
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!
```js
import { greet } from "./hello_world";
greet("World!");
```
## Features
* **Lightweight.** Only pay for what you use. `wasm-bindgen` only generates
bindings and glue for the JavaScript imports you actually use and Rust
functionality that you export. For example, importing and using the
`document.querySelector` method doesn't cause `Node.prototype.appendChild` or
`window.alert` to be included in the bindings as well.
* **ECMAScript modules.** Just import WebAssembly modules the same way you would
import JavaScript modules. Future compatible with [WebAssembly modules and
ECMAScript modules integration][wasm-es-modules].
* **Designed with the ["Web IDL bindings" proposal][webidl-bindings] in mind.**
Eventually, there won't be any JavaScript shims between Rust-generated wasm
functions and native DOM methods. Because the Wasm functions are statically
type checked, some of those native methods' dynamic type checks should become
unnecessary, promising to unlock even-faster-than-JavaScript DOM access.
[wasm-es-modules]: https://github.com/WebAssembly/esm-integration
[webidl-bindings]: https://github.com/WebAssembly/proposals/issues/8
## Guide
[**📚 Read the `wasm-bindgen` guide here! 📚**](https://rustwasm.github.io/docs/wasm-bindgen/)
You can find general documentation about using Rust and WebAssembly together
[here](https://rustwasm.github.io/docs).
## API Docs
- [wasm-bindgen](https://docs.rs/wasm-bindgen)
- [js-sys](https://docs.rs/js-sys)
- [web-sys](https://docs.rs/web-sys)
- [wasm-bindgen-futures](https://docs.rs/wasm-bindgen-futures)
## MSRV Policy
Libraries that are released on [crates.io](https://crates.io) have a MSRV of v1.57. Changes to the MSRV will be accompanied by a minor version bump.
CLI tools and their corresponding support libraries have a MSRV of v1.76. Changes to the MSRV will be accompanied by a patch version bump.
## License
This project is licensed under either of
* Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
http://www.apache.org/licenses/LICENSE-2.0)
* MIT license ([LICENSE-MIT](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`!][contributing]**
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.
[contributing]: https://rustwasm.github.io/docs/wasm-bindgen/contributing/index.html
wasm-bindgen-0.2.99/build.rs 0000644 0000000 0000000 00000000212 10461020230 0013740 0 ustar 0000000 0000000 // Empty `build.rs` so that `[package] links = ...` works in `Cargo.toml`.
fn main() {
println!("cargo:rerun-if-changed=build.rs");
}
wasm-bindgen-0.2.99/src/cache/intern.rs 0000644 0000000 0000000 00000006105 10461020230 0016001 0 ustar 0000000 0000000 use cfg_if::cfg_if;
cfg_if! {
if #[cfg(feature = "enable-interning")] {
use std::thread_local;
use std::string::String;
use std::borrow::ToOwned;
use std::cell::RefCell;
use std::collections::HashMap;
use crate::JsValue;
struct Cache {
entries: RefCell
