js-sys: Document that new bindings should take JS things by shared ref

This commit is contained in:
Nick Fitzgerald 2018-08-09 13:08:51 -07:00
parent e3011d629e
commit 96ad97a9f9

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@ -42,6 +42,9 @@ use wasm_bindgen::prelude::*;
// * Add a new `#[test]` into the appropriate file in the
// `crates/js-sys/tests/wasm/` directory. If the imported function or method
// can throw an exception, make sure to also add test coverage for that case.
//
// * Arguments that are `JsValue`s or imported JavaScript types should be taken
// by reference.
#[wasm_bindgen]
extern "C" {