Agenda for the 77th meeting of Ecma TC39
August 9, 2023 · View on GitHub
Agenda for the 77th meeting of Ecma TC39
- Host: Microsoft
- Dates and times:
- 10:00 to 15:00 PT (UTC -7) on July 20th, 2020
- 10:00 to 15:00 PT (UTC -7) on July 21st, 2020
- 10:00 to 15:00 PT (UTC -7) on July 22nd, 2020
- 10:00 to 15:00 PT (UTC -7) on July 23rd, 2020
- Location: Remote (was Redmond)
- Attendee information: https://github.com/tc39/Reflector/issues/288
Allen's paper on standards committee participation for new attendees: http://wirfs-brock.com/allen/files/papers/standpats-asianplop2016.pdf
Agenda topic rules
Deadline for advancement eligibility: July 10th, 2020, 10:00 PT
- Note: this time is selected to be precisely 10 days prior to the start of the meeting
- Proposals not looking to advance may be added at any time; if after the deadline, please always use a pull request so that members are notified of changes.
- Proposals seeking feedback at stage 0 must be added (and noted as such) prior to the deadline, or else delegates may object to advancement solely on the basis of missing the deadline.
- Such proposals should include supporting materials when possible.
- Proposals looking to advance to stage 1 must be added (and noted as such) prior to the deadline, or else delegates may object to advancement solely on the basis of missing the deadline.
- Such proposals must link to a proposal repository and they should link to supporting materials when possible.
- Proposals looking to advance to stages 2, 3, or 4 must be added (and noted as such) along with the necessary materials prior to the deadline, or else delegates may object to advancement solely on the basis of missing the deadline.
- Such proposals must link to supporting materials prior to the deadline, or else delegates may object to advancement solely on the basis of missing the deadline. If these materials change substantially after the deadline, the proposal may be disqualified from advancement, based on the committee’s judgment.
- Proposals looking to advance to stage 4 must link to a pull request into the spec, since the process requires one.
- Proposal-based agenda items should be sorted primarily by stage (descending), secondarily by timebox (ascending), and finally by insertion date.
Supporting materials includes slides, a link to the proposal repository, a link to spec text, etc.; essentially, anything you are planning to present to the committee, or that would be useful for delegates to review.
Agenda items
-
Opening, welcome and roll call (Chair)
- Opening of the meeting
- TC39 follows its Code of Conduct
- Introduction of attendees
- Host facilities, local logistics
- Quick recap of meeting IPR policy
- Overview of communication tools
-
Find volunteers for note taking
-
Adoption of the agenda
-
Approval of the minutes from last meeting
-
Next meeting host and logistics
-
Secretary's Report (15m, Istvan Sebestyen, slides (https://github.com/tc39/agendas/blob/HEAD/2020/tc39-2020-036.pdf))
-
Project Editors’ Reports
-
Updates from the CoC Committee (15m)
-
Web compatibility issues / Needs Consensus PRs
✓ timebox topic presenter ✓ 10m retroactive consensus on Unicode 13 property names and aliases (#1896, #1939) Michael Ficarra ✓ 15m Specify \8 and \9 in sloppy (non-template) strings (#2054) Ross Kirsling ✓ 15m adding Reflect[Symbol.toStringTag] (#2057) Jordan Harband ✓ 15m Should eval?.() be direct eval? (#2062, #2063) Ross Kirsling ✓ 15m Host hooks for Job callbacks (slides) Shu-yu Guo ✓ 15m Handle awkward rounding behavior (slides) Ujjwal Sharma ✓ 15m :hourglass: Strictness check for object's SetMutableBinding (slides) Leo Balter ✓ 30m fix Function toString for builtins Gus Caplan, Jordan Harband -
Overflow from previous meeting
✓ timebox topic presenter ✓ 45m Cognitive Dimensions of Notation: a framework for reflecting on language design Yulia Startsev and Felienne Hermans -
Incubation call chartering (15m on the last day)
-
Short (≤30m) Timeboxed Discussions
✓ timebox topic presenter -
Proposals
✓ represents an agenda item which has been presented, and does not indicate stage advancement
| ✓ | stage | timebox | topic | presenter |
|---|---|---|---|---|
| ✓ | 3 | 5m | NumericLiteralSeparator for Stage 4 (slides) | Rick Waldron, Sam Goto, Leo Balter |
| ✓ | 3 | 10m | Intl.ListFormat for Stage 4 (slides) | Zibi Braniecki |
| ✓ | 3 | 10m | Intl.DateTimeFormat dateStyle/timeStyle for Stage 4 (slides) | Zibi Braniecki |
| ✓ | 3 | 15m | Promise.any & AggregateError for stage 4 (slides) (PR) | Mathias Bynens |
| ✓ | 3 | 15m | WeakRefs for Stage 4 (PR) and CleanupSome for stage 2/3 (slides) | Daniel Ehrenberg, Yulia Startsev |
| ✓ | 3 | 15m | Logical Assignment for Stage 4 (PR, slides) | Justin Ridgewell |
| ✓ | 2 | 10m | Decorators status update (slides) | Kristen Hewell Garrett |
| ✓ | 2 | 15m | Ergonomic brand checks for private fields for stage 3 (issue) | Jordan Harband |
| ✓ | 2 | 15m | Temporal Stage 2 update (slides) | Philip Chimento |
| ✓ | 2 | 30m | Intl.Segmenter for Stage 3 (slides, spec text) | Richard Gibson |
| ✓ | 2 | 45m | Import Conditions for Stage 3 (slides, spec text) | Sven Sauleau, Daniel Ehrenberg, Myles Borins, Dan Clark, Shu-yu Guo |
| ✓ | 2 | 45m | Upsert (now renamed emplace) updates & for Stage 3 (slides) | Bradley Farias |
| ✓ | 2 | 15m | Iterator Helpers update (slides) | Adam Vandodler |
| ✓ | 1 | 15m | .item() for Stage 2 (slides) | Shu-yu Guo, Tab Atkins |
| ✓ | 1 | 20m | Number.range for Stage 2 (spec, slides) | Jack Works |
| ✓ | 1 | 20m | Slice notation for Stage 2 (spec, slides) | Sathya Gunasekaran |
| 1 | 30m | Numeric literal suffixes update: separate namespace version (slides) | Daniel Ehrenberg | |
| ✓ | 1 | 30m | Record and Tuple for Stage 2 (spec, slides) | Robin Ricard & Rick Button |
| ✓ | 1 | 30m | Symbol as WeakMap key for Stage 2 (spec, slides) | Daniel Ehrenberg |
| ✓ | 1 | 30m | JSON.parse source text access for Stage 2 (slides, spec text) | Richard Gibson |
| ✓ | 1 | 30m | :hourglass: Class static blocks for Stage 2 (spec, slides) | Ron Buckton & Daniel Rosenwasser |
| ✓ | 0 | 15m | await operations for Stage 1 (spec, slides) | Jack Works |
| ✓ | 0 | 15m | Array.prototype.unique() proposal for Stage 1 (slides) | @TechQuery (presented by Jack Works) |
| ✓ | 0 | 15m | Forbid Numeric Separators in NonOctalDecimalIntegerLiteral fractional / exponent parts, original issue, slides | Leo Balter, Ross Kirsling |
| ✓ | 0 | 15m | Arbitrary Module Namespace Identifiers update & for Stage 1 | Bradley Farias |
| ✓ | 0 | 45m | ResizableArrayBuffer and GrowableSharedArrayBuffer for Stage 1 (slides) | Shu-yu Guo |
| ✓ | 0 | 45m | Async Context updates & for Stage 1 (slides) | Chengzhong Wu |
-
Longer or open-ended discussions
✓ timebox topic presenter ✓ 15m Flex Incubator Calls to weekly meetings Leo Balter ✓ 30m Documenting Invariants, (repo, slides) Yulia Startsev ✓ 30m Many specific invariants to consider (slides) Mark S. Miller ✓ 15m Addressing institutional racism in TC39 (issue, slides) Mark Cohen 30m Operator overloading: a good direction for JS? Daniel Ehrenberg -
Overflow from timeboxed agenda items (in insertion order)
✓ topic presenter -
Other business
- Thank host
-
Adjournment
Schedule constraints
- Mathias is only available on July 21st from 10:00 to 11:00 PT (UTC -7) — could we schedule the
Promise.any&AggregateErroritem then? - Philip Chimento (Temporal) only available Monday and Tuesday.
- Felienne Hermans (Cognitive Dimensions of Notation) only available Monday. Preferably earlier.
- Documenting Invariants talk should happen before discussion of Specific Invariant Topics.
- Ron Buckton will only be available on July 20th, will only have very limited availability July 21st-22nd, and will not be available July 23rd. If necessary, Daniel Rosenwasser will present in my place.
- "Addressing institutional racism" would prefer to present on Thursday (July 23).
- Records and Tuples should be scheduled adjacently to Symbols as WeakMap keys.
- Sven Sauleau (Import Conditions) not available Monday.
Presentations which can be deferred
The schedule is overfull and we won't be able to get to everything. In this section, TC39 delegates can volunteer to defer their own presentation to a future meeting.
- Daniel Ehrenberg: Operator overloading, and if necessary, extensible numeric literals.
Dates and locations of future meetings
| Dates | Location | Host |
|---|---|---|
| 2020-09-21 to 2020-09-24 | Remote (was Tokyo, Japan) | Bloomberg |
| 2020-11-16 to 2020-11-19 | Remote (was Budapest, Hungary) | IBM |