Re: [whatwg/webidl] Maplike/setlike iterators shouldn't use MapIteratorPrototype/etc (Issue #1142) from Jordan Harband on 2022-05-05 (public-webapps-github@w3.org from May 2022)

From: Jordan Harband <notifications@github.com>
Date: Thu, 05 May 2022 15:31:24 -0700
To: whatwg/webidl <webidl@noreply.github.com>
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Message-ID: <whatwg/webidl/issues/1142/1119101751@github.com>

The committee's makeup has certainly shifted; the impetus seems to currently be towards minimizing observable lookups by this implicit "contract" (which for Map is just "the constructor calls `.set`", and Set `.add`, from what I can tell), and moving towards something that exclusively uses brands for the receiver and uses brand + fallback-to-lookup for arguments.

It's unfortunate that WebIDL has designed a bunch of things with an understanding that TC39 seems to not have widely (or at least, overtly) shared for the last half-decade.

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Received on Thursday, 5 May 2022 22:31:35 UTC