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[google_fonts] Make a map keyed on FontWeight non-const - #10058

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Sep 24, 2025
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[google_fonts] Make a map keyed on FontWeight non-const#10058
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A proposed engine PR will allow construction of arbitrary FontWeight instances and thus needs to overload the FontWeight equality operator (see flutter/flutter#175771)

With that change it will no longer be possible to use FontWeight as the key in a const map.

A proposed engine PR will allow construction of arbitrary FontWeight
instances and thus needs to overload the FontWeight equality operator
(see flutter/flutter#175771)
With that change it will no longer be possible to use FontWeight as the
key in a const map.
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It looks like this pull request may not have tests. Please make sure to add tests or get an explicit test exemption before merging.

If you are not sure if you need tests, consider this rule of thumb: the purpose of a test is to make sure someone doesn't accidentally revert the fix. Ask yourself, is there anything in your PR that you feel it is important we not accidentally revert back to how it was before your fix?

Reviewers: Read the Tree Hygiene page and make sure this patch meets those guidelines before LGTMing. If you believe this PR qualifies for a test exemption, contact "@test-exemption-reviewer" in the #hackers channel in Discord (don't just cc them here, they won't see it!). The test exemption team is a small volunteer group, so all reviewers should feel empowered to ask for tests, without delegating that responsibility entirely to the test exemption group.

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Code Review

This pull request updates the google_fonts package by removing the const keyword from a map that uses FontWeight as a key. This change is necessary to support a proposed modification in the Flutter engine that will make FontWeight instances non-constant. The package version and changelog are updated accordingly to reflect this change. My review includes a suggestion to mark the map as final to improve code robustness.

Comment threadpackages/google_fonts/lib/src/google_fonts_variant.dart Outdated

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LGTM thank you!

Comment threadpackages/google_fonts/CHANGELOG.md Outdated
@@ -1,3 +1,7 @@
## 6.3.2

- Make a map keyed on FontWeight non-const for compatibility with proposed changes to the engine's implementation of FontWeight.

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Done

@jason-simmonsjason-simmons added the autosubmit Merge PR when tree becomes green via auto submit App label Sep 24, 2025
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auto-submitBot merged commit 651c565 into flutter:mainSep 24, 2025
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github-merge-queueBot pushed a commit to flutter/flutter that referenced this pull request Sep 26, 2025
flutter/packages@117bf63...389c678
2025-09-25 magder@google.com Update local_auth_darwin CODEOWNERS
(flutter/packages#10074)
2025-09-25 10687576+bparrishMines@users.noreply.github.com
[interactive_media_ads] Adds support for time offsets of ad breaks
(flutter/packages#9953)
2025-09-25 engine-flutter-autoroll@skia.org Roll Flutter from
4a04204 to b1a28bc (44 revisions) (flutter/packages#10077)
2025-09-24 jason-simmons@users.noreply.github.com [google_fonts] Make a
map keyed on FontWeight non-const (flutter/packages#10058)
If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/flutter-packages-flutter-autoroll
Please CC flutter-ecosystem@google.com on the revert to ensure that a
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reidbaker pushed a commit to AbdeMohlbi/flutter that referenced this pull request Dec 10, 2025
flutter/packages@117bf63...389c678
2025-09-25 magder@google.com Update local_auth_darwin CODEOWNERS
(flutter/packages#10074)
2025-09-25 10687576+bparrishMines@users.noreply.github.com
[interactive_media_ads] Adds support for time offsets of ad breaks
(flutter/packages#9953)
2025-09-25 engine-flutter-autoroll@skia.org Roll Flutter from
4a04204 to b1a28bc (44 revisions) (flutter/packages#10077)
2025-09-24 jason-simmons@users.noreply.github.com [google_fonts] Make a
map keyed on FontWeight non-const (flutter/packages#10058)
If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/flutter-packages-flutter-autoroll
Please CC flutter-ecosystem@google.com on the revert to ensure that a
human
is aware of the problem.
To file a bug in Flutter:
https://github.com/flutter/flutter/issues/new/choose
To report a problem with the AutoRoller itself, please file a bug:
https://issues.skia.org/issues/new?component=1389291&template=1850622
Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md
creatorpiyush pushed a commit to creatorpiyush/packages that referenced this pull request Jun 10, 2026
A proposed engine PR will allow construction of arbitrary FontWeight instances and thus needs to overload the FontWeight equality operator (see flutter/flutter#175771)
With that change it will no longer be possible to use FontWeight as the key in a const map.
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@jason-simmons@stuartmorgan-g@Piinks