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guide: Add note about static_method_of attribute to design doc

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Nick Fitzgerald 2018-06-27 14:58:53 -07:00
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guide/src/design.md
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@ -706,6 +706,9 @@ let's go through one-by-one:
this function must be a bare type, like `Bar`.
* `#[wasm_bindgen(js_namespace = Bar)]` - this attribute indicates that the
function declaration is namespaced through the `Bar` class in JS.
* `#[wasm_bindgen(static_method_of = SomeJsClass)]` - this attribute is similar
to `js_namespace`, but instead of producing a free function, produces a static
method of `SomeJsClass`.
* `#[wasm_bindgen(method)]` - and finally, this attribute indicates that a
method call is going to happen. The first argument must be a JS struct, like
`Bar`, and the call in JS looks like `Bar.prototype.set.call(...)`.