1999316 - Implement Intl era and monthCode proposal, draft Nov 7, 2025

Status: RESOLVED FIXED

(Core :: JavaScript: Standard Library, task, P1)

Comment 1

[André Bargull [:anba]]

Attachment: Bug 1999316 - Part 1: Remove workarounds for fixed ICU4X bugs. r=#spidermonkey-reviewers!

Comment 2

[André Bargull [:anba]]

Attachment: Bug 1999316 - Part 2: Add IsValidMonthCodeForCalendar. r=#spidermonkey-reviewers!

And add some more comments.

Comment 3

[André Bargull [:anba]]

Attachment: Bug 1999316 - Part 3: Add CalendarHasMidYearEras. r=#spidermonkey-reviewers!

Rename CalendarEraStartsAtYearBoundary to CalendarHasMidYearEras to match
the spec.

Also rename CalendarEraStartsAtYearBoundary to IsJapaneseEraName.

Comment 4

[André Bargull [:anba]]

Attachment: Bug 1999316 - Part 4: CalendarDateYear and CalendarDateMonthCode are infallible. r=#spidermonkey-reviewers!

Both functions can no longer throw when we've updated to a more recent ICU4X.

Also adds CalendarDateWithOrdinalMonth instead of reusing ISODate.

Comment 5

[André Bargull [:anba]]

Attachment: Bug 1999316 - Part 5: Support eras for more calendars. r=#spidermonkey-reviewers!

Add eras specified in the proposal, except for the ones which will be removed
in https://github.com/tc39/proposal-intl-era-monthcode/pull/72.

Comment 6

[André Bargull [:anba]]

Attachment: Bug 1999316 - Part 6: Remove era aliases for ROC calendar. r=#spidermonkey-reviewers!

Remove aliases per https://github.com/tc39/proposal-intl-era-monthcode/pull/72.

Comment 7

[André Bargull [:anba]]

Attachment: Bug 1999316 - Part 7: Remove no longer needed shell-option to enable Temporal. r=#spidermonkey-reviewers!

Comment 8

[André Bargull [:anba]]

Attachment: Bug 1999316 - Part 8: Enable now passing tests. r=#spidermonkey-reviewers!

Comment 9

[Pulsebot]

Pushed by [e-mail]:
https://github.com/mozilla-firefox/firefox/commit/090cc6a8816c
https://hg.mozilla.org/integration/autoland/rev/56fce3115cbe
Part 1: Remove workarounds for fixed ICU4X bugs. r=spidermonkey-reviewers,mgaudet
https://github.com/mozilla-firefox/firefox/commit/18d4db910547
https://hg.mozilla.org/integration/autoland/rev/a7cec9975d2a
Part 2: Add IsValidMonthCodeForCalendar. r=spidermonkey-reviewers,mgaudet
https://github.com/mozilla-firefox/firefox/commit/6fbded534bc2
https://hg.mozilla.org/integration/autoland/rev/e4090be6be13
Part 3: Add CalendarHasMidYearEras. r=spidermonkey-reviewers,mgaudet
https://github.com/mozilla-firefox/firefox/commit/c239c1f224a3
https://hg.mozilla.org/integration/autoland/rev/27815ed3d67e
Part 4: CalendarDateYear and CalendarDateMonthCode are infallible. r=spidermonkey-reviewers,mgaudet
https://github.com/mozilla-firefox/firefox/commit/584dd6fe83c9
https://hg.mozilla.org/integration/autoland/rev/eb66a9f88801
Part 5: Support eras for more calendars. r=spidermonkey-reviewers,mgaudet
https://github.com/mozilla-firefox/firefox/commit/cfb69b7491f1
https://hg.mozilla.org/integration/autoland/rev/5e728f04a100
Part 6: Remove era aliases for ROC calendar. r=spidermonkey-reviewers,mgaudet
https://github.com/mozilla-firefox/firefox/commit/5b793020cc6e
https://hg.mozilla.org/integration/autoland/rev/bfae91d91969
Part 7: Remove no longer needed shell-option to enable Temporal. r=spidermonkey-reviewers,mgaudet
https://github.com/mozilla-firefox/firefox/commit/8b8a7b5ef2b8
https://hg.mozilla.org/integration/autoland/rev/7710efd65bec
Part 8: Enable now passing tests. r=spidermonkey-reviewers,mgaudet

Comment 10

[Norisz Fay [:noriszfay]]

https://hg.mozilla.org/mozilla-central/rev/56fce3115cbe
https://hg.mozilla.org/mozilla-central/rev/a7cec9975d2a
https://hg.mozilla.org/mozilla-central/rev/e4090be6be13
https://hg.mozilla.org/mozilla-central/rev/27815ed3d67e
https://hg.mozilla.org/mozilla-central/rev/eb66a9f88801
https://hg.mozilla.org/mozilla-central/rev/5e728f04a100
https://hg.mozilla.org/mozilla-central/rev/bfae91d91969
https://hg.mozilla.org/mozilla-central/rev/7710efd65bec