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Merge pull request #1011 from alexcrichton/import-doc
Add a note about renaming types and `js_class`
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@ -44,3 +44,18 @@ extern {
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All of these functions will call `console.log` in JavaScript, but each
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identifier will have only one signature in Rust.
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Note that if you use `js_name` when importing a type you'll also need to use the
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[`js_class` attribute][jsclass] when defining methods on the type:
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```rust
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#[wasm_bindgen]
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extern {
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#[wasm_bindgen(js_name = String)]
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type JsString;
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#[wasm_bindgen(method, getter, js_class = "String")]
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pub fn length(this: &JsString) -> u32;
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}
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```
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[jsclass]: js_class.html
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