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Custom Builtins #234

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josepharhar opened this issue Oct 20, 2022 · 6 comments
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Custom Builtins #234

josepharhar opened this issue Oct 20, 2022 · 6 comments
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focus-area-proposal Focus Area Proposal

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@josepharhar
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josepharhar commented Oct 20, 2022 •
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This was split from #181

I had a hard time finding a good description and rationale for this feature, but it is in the HTML spec and has WPTs.

Tests

Spec

https://html.spec.whatwg.org/multipage/custom-elements.html#customized-built-in-element
@josepharhar josepharhar mentioned this issue Oct 20, 2022
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@domenic
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domenic commented Oct 21, 2022

I had a hard time finding a good description and rationale for this feature

I think https://html.spec.whatwg.org/multipage/custom-elements.html#custom-elements-customized-builtin-example and the following section serve that purpose.

@gsnedders gsnedders moved this to Proposed in Interop 2023 Oct 21, 2022
@gsnedders gsnedders added the focus-area-proposal Focus Area Proposal label Oct 21, 2022
@gsnedders
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gsnedders commented Oct 21, 2022 •
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This is another case where our existing scoring absolutely falls apart due to only having two tests, and with those two tests have very different numbers of subtests: each of the subtests in customized-built-in-constructor-exceptions.html would be worth 10%, and each element in builtin-coverage.html (each with four subtests) would be worth 0.45%.

@gsnedders gsnedders mentioned this issue Oct 25, 2022
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@josepharhar
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I just added the pseudo-class-defined.html and custom-elements/parser/ tests to this issue because they are only failing in safari and only due to custom builtins.

@foolip
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foolip commented Nov 11, 2022

In the MDN short survey on APIs & JavaScript, "Web Components (custom elements, Shadow DOM, etc.)" was the most popular choice by a fairly wide margin, selected by ~39% of survey takers.

Web Components was split into many granular proposals, and the survey results don't tell us which aspects web developers want the most, but it's fair to say that something about Web Components is important. (I'm posting this comment on each of the split proposals.)

@josepharhar
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I just moved a bunch of tests from the misc. custom elements proposal into this one: #231 (comment)

@nairnandu
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Thank you for proposing Custom Builtins for inclusion in Interop 2023.

We wanted to let you know that this proposal was not selected to be part of Interop this year. We had many strong proposals, and could not accept them all. Every technology that’s chosen for Interop must have a web standard created from consensus between the parties involved. Custom Builtins does not have such an agreement.

For an overview of our process, see the proposal selection summary. Thank you again for contributing to Interop 2023!

Posted on behalf of the Interop team.

@dgrammatiko dgrammatiko mentioned this issue Feb 9, 2023
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@gsnedders @foolip @domenic @nairnandu @josepharhar