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[url_launcher] Ignore new unreachable_switch_default warning. #7487

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Aug 26, 2024

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The Dart analyzer will soon be changed so that if the default clause of a switch statement is determined to be unreachable by the exhaustiveness checker, a new warning of type
unreachable_switch_default will be issued. This parallels the behavior of the existing unreachable_switch_case warning, which is issued whenever a case clause of a switch statement is determined to be unreachable.

In the vast majority of cases, the most reasonable way to address the warning is to remove the unreachable default clause. However, in a few rare cases, it makes sense to keep the default clause, because it's intentionally future-proofing the code in case new possible values are added to the enum being switched on.

Three of these rare cases crop up in flutter/packages. This change adds ignore comments to avoid a spurious warning.

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If you need help, consider asking for advice on the #hackers-new channel on Discord.

The Dart analyzer will soon be changed so that if the `default` clause
of a `switch` statement is determined to be unreachable by the
exhaustiveness checker, a new warning of type
`unreachable_switch_default` will be issued. This parallels the
behavior of the existing `unreachable_switch_case` warning, which is
issued whenever a `case` clause of a `switch` statement is determined
to be unreachable.

In the vast majority of cases, the most reasonable way to address the
warning is to remove the unreachable `default` clause. However, in a
few rare cases, it makes sense to keep the `default` clause, because
it's intentionally future-proofing the code in case new possible
values are added to the enum being switched on.

Three of these rare cases crop up in flutter/packages. This change
adds `ignore` comments to avoid a spurious warning.
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LGTM

@stereotype441 stereotype441 merged commit 6c12c88 into flutter:main Aug 26, 2024
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engine-flutter-autoroll added a commit to engine-flutter-autoroll/flutter that referenced this pull request Aug 26, 2024
engine-flutter-autoroll added a commit to engine-flutter-autoroll/flutter that referenced this pull request Aug 26, 2024
engine-flutter-autoroll added a commit to engine-flutter-autoroll/flutter that referenced this pull request Aug 26, 2024
engine-flutter-autoroll added a commit to engine-flutter-autoroll/flutter that referenced this pull request Aug 27, 2024
engine-flutter-autoroll added a commit to engine-flutter-autoroll/flutter that referenced this pull request Aug 27, 2024
engine-flutter-autoroll added a commit to engine-flutter-autoroll/flutter that referenced this pull request Aug 28, 2024
engine-flutter-autoroll added a commit to engine-flutter-autoroll/flutter that referenced this pull request Aug 28, 2024
engine-flutter-autoroll added a commit to engine-flutter-autoroll/flutter that referenced this pull request Aug 29, 2024
auto-submit bot pushed a commit to flutter/flutter that referenced this pull request Aug 29, 2024
flutter/packages@d862279...2a0f254

2024-08-28 10687576+bparrishMines@users.noreply.github.com [interactive_media_ads] Adds internal wrapper for remaining methods of the Android native `AdsManager`  (flutter/packages#7437)
2024-08-28 brackenavaron@gmail.com [shared_preferences] Fix typo in changelog (flutter/packages#7523)
2024-08-27 matanlurey@users.noreply.github.com Remove matan from codeowners (flutter/packages#7511)
2024-08-27 tarrinneal@gmail.com [shared_preferences] Add test to enforce mutable lists (flutter/packages#7369)
2024-08-27 magder@google.com [google_sign_in_ios] Fix "callee requires a non-null parameter" analyzer warning (flutter/packages#7513)
2024-08-27 louisehsu@google.com [in_app_purchase_storekit] Allows 'localizedDescription' to be nullable to handle occasional nulls in Storekit objects (flutter/packages#7515)
2024-08-27 31859944+LongCatIsLooong@users.noreply.github.com Cupertino icons golden tests (flutter/packages#7421)
2024-08-26 49699333+dependabot[bot]@users.noreply.github.com [pigeon]: Bump org.jetbrains.kotlin:kotlin-gradle-plugin from 2.0.10 to 2.0.20 in /packages/pigeon/platform_tests/test_plugin/android (flutter/packages#7500)
2024-08-26 zezohassam@gmail.com [video_player] Updates minimum supported SDK (flutter/packages#7498)
2024-08-26 paulberry@google.com [url_launcher] Ignore new `unreachable_switch_default` warning. (flutter/packages#7487)
2024-08-26 linxunfeng@yeah.net Revert "[video_player] Relands #6456: Uses SurfaceProducer, this time with setCallback for suspend/resume lifecycles" (flutter/packages#7497)
2024-08-24 matanlurey@users.noreply.github.com [video_player] Relands #6456: Uses `SurfaceProducer`, this time with `setCallback` for suspend/resume lifecycles. (flutter/packages#6989)
2024-08-23 109111084+yaakovschectman@users.noreply.github.com [google_maps_flutter_android] Convert `PlatformTileOverlay` to Pigeon (flutter/packages#7467)
2024-08-23 47866232+chunhtai@users.noreply.github.com [go_router] Fixes issue so that the parseRouteInformationWithContext � (flutter/packages#7337)

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,rmistry@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
Buchimi pushed a commit to Buchimi/flutter that referenced this pull request Sep 2, 2024
flutter/packages@d862279...2a0f254

2024-08-28 10687576+bparrishMines@users.noreply.github.com [interactive_media_ads] Adds internal wrapper for remaining methods of the Android native `AdsManager`  (flutter/packages#7437)
2024-08-28 brackenavaron@gmail.com [shared_preferences] Fix typo in changelog (flutter/packages#7523)
2024-08-27 matanlurey@users.noreply.github.com Remove matan from codeowners (flutter/packages#7511)
2024-08-27 tarrinneal@gmail.com [shared_preferences] Add test to enforce mutable lists (flutter/packages#7369)
2024-08-27 magder@google.com [google_sign_in_ios] Fix "callee requires a non-null parameter" analyzer warning (flutter/packages#7513)
2024-08-27 louisehsu@google.com [in_app_purchase_storekit] Allows 'localizedDescription' to be nullable to handle occasional nulls in Storekit objects (flutter/packages#7515)
2024-08-27 31859944+LongCatIsLooong@users.noreply.github.com Cupertino icons golden tests (flutter/packages#7421)
2024-08-26 49699333+dependabot[bot]@users.noreply.github.com [pigeon]: Bump org.jetbrains.kotlin:kotlin-gradle-plugin from 2.0.10 to 2.0.20 in /packages/pigeon/platform_tests/test_plugin/android (flutter/packages#7500)
2024-08-26 zezohassam@gmail.com [video_player] Updates minimum supported SDK (flutter/packages#7498)
2024-08-26 paulberry@google.com [url_launcher] Ignore new `unreachable_switch_default` warning. (flutter/packages#7487)
2024-08-26 linxunfeng@yeah.net Revert "[video_player] Relands flutter#6456: Uses SurfaceProducer, this time with setCallback for suspend/resume lifecycles" (flutter/packages#7497)
2024-08-24 matanlurey@users.noreply.github.com [video_player] Relands flutter#6456: Uses `SurfaceProducer`, this time with `setCallback` for suspend/resume lifecycles. (flutter/packages#6989)
2024-08-23 109111084+yaakovschectman@users.noreply.github.com [google_maps_flutter_android] Convert `PlatformTileOverlay` to Pigeon (flutter/packages#7467)
2024-08-23 47866232+chunhtai@users.noreply.github.com [go_router] Fixes issue so that the parseRouteInformationWithContext � (flutter/packages#7337)

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,rmistry@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
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