Shape objects

[Bob Myers]

The engines already do these optimizations.


On Sat, Jun 16, 2018 at 1:27 PM Cyril Auburtin <cyril.auburtin at gmail.com>
wrote:

> I wish JS had Shape objects, which would not only ease performance
> optimization for the benefit of JS engines (
> https://youtu.be/5nmpokoRaZI?t=871), but also helps for validation, like
> an interface
>
> ```js
> shape Point { x: Number, y: Number, name: String };
>
> const p = Point({x: 1, y: 2, name: 'foo'})
>
> const p = Point({x: 1, y: 2, naem: 'foo'}) // throws
> ```
>
> That object would have its properties immutable
>
> I think proposal-first-class-protocols (
> https://github.com/michaelficarra/proposal-first-class-protocols/issues/27#issuecomment-386975099)
> could more or less directly do that feature
>
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