mirror of
https://github.com/fluencelabs/wasm-bindgen
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5b76a6291e
This commit implements the first half of [RFC #5] where the `Deref` trait is implemented for all imported types. The target of `Deref` is either the first entry of the list of `extends` attribute or `JsValue`. All examples using `.as_ref()` with various `web-sys` types have been updated to the more ergonomic deref casts now. Additionally the `web-sys` generation of the `extends` array has been fixed slightly to explicitly list implementatoins in the hierarchy order to ensure the correct target for `Deref` is chosen. [RFC #5]: https://github.com/rustwasm/rfcs/blob/master/text/005-structural-and-deref.md
23 lines
694 B
Rust
23 lines
694 B
Rust
extern crate wasm_bindgen;
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extern crate web_sys;
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use wasm_bindgen::prelude::*;
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// Called by our JS entry point to run the example
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#[wasm_bindgen]
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pub fn run() -> Result<(), JsValue> {
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// Use `web_sys`'s global `window` function to get a handle on the global
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// window object.
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let window = web_sys::window().expect("no global `window` exists");
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let document = window.document().expect("should have a document on window");
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let body = document.body().expect("document should have a body");
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// Manufacture the element we're gonna append
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let val = document.create_element("p")?;
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val.set_inner_html("Hello from Rust!");
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body.append_child(&val)?;
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Ok(())
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}
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