Path to Stage 4!

[ljharb]

Stage 4

• committee approval
• two implementations
• significant in-the-field experience
• ecma262 PR approved
• prepare ecma262 PR

Stage 3

• committee approval
• merge test262 tests
• write test262 tests (PR)

Stage 2.7

• committee approval
• spec editor signoff
  • @syg
  • @bakkot
  • @michaelficarra
• spec reviewer signoff
  • @acutmore
  • @chicoxyzzy
• HTML integration PR directionally approved (HTML integration #9) (PR)
• resolve Proxies: to pierce or not to pierce? #8

Stage 2

• committee approval
• spec reviewers selected
• spec text written

Stage 1

• committee approval

[michaelficarra]

@ljharb In the other places we pierce proxies, we call ValidateNonRevokedProxy in your step 3a. We may as well follow that pattern.

On the question of proxy piercing, this would make Object.prototype.toString conflict with Error.isError (since only isError will pierce), unlike Array.isArray which pierces in both places. I don't think that's a good idea.

[ljharb]

ah, good point. That might be another very strong argument for #8 to not pierce proxies.

[ljharb]

ping @chicoxyzzy @bakkot @michaelficarra for review, i'm going for 2.7 at the next plenary

[michaelficarra]

LGTM. Is the separate AO necessary? I would inline it.

[ljharb]

It's not necessary right now (now that the proxy piercing is gone), but future proposals will make use of it. It'd be fine to extract it at that time, instead, if you prefer.

[bakkot]

LGTM though I would want something whatwg/webidl#1421 to be at least approved in principle as well. The process doesn't currently have a stage for which "necessary host integration work is done" is an entry requirement, but either 2.7 or 3 seem appropriate. (If you want to make the case that it can happen between 2.7 and 3 that's fine by me also.)

[ljharb]

Thanks! I agree that it must be approved before 3; and I'm hoping it will be approved before 2.7, but I also agree that it needn't block 2.7 as long as there's no feedback requiring a different direction.

[chicoxyzzy]

LGTM