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Fix narrowing conversion lint #47740

Merged
merged 1 commit into from
Nov 8, 2023
Merged

Fix narrowing conversion lint #47740

merged 1 commit into from
Nov 8, 2023

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jiahaog
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@jiahaog jiahaog commented Nov 7, 2023

Internally we have a lint that surfaces this as a warning. Googlers, please refer to go/al-rule/NarrowingConversion.

Related: b/309552840

When we do:

coords.toolMajor = (float) (double) coordsList.get(3) * density;

coordsList.get(3) is casted to a double, then a float, before the multiplication happens.

I don't think this is intentional. The intention of the code here seems to be:

  • Cast to a double: coordsList is a List<Object> so the cast narrows the value
  • Cast to a float: To fit the resulting value into coords.toolMajor, which is a float.

As such, add parenthesis to address this.

Pre-launch Checklist

  • I read the Contributor Guide and followed the process outlined there for submitting PRs.
  • I read the Tree Hygiene wiki page, which explains my responsibilities.
  • I read and followed the Flutter Style Guide and the C++, Objective-C, Java style guides.
  • I listed at least one issue that this PR fixes in the description above.
  • I added new tests to check the change I am making or feature I am adding, or the PR is test-exempt. See testing the engine for instructions on writing and running engine tests.
  • I updated/added relevant documentation (doc comments with ///).
  • I signed the CLA.
  • All existing and new tests are passing.

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

Internally we have a lint that surfaces this as a warning.

Related: b/309552840
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It looks like this pull request may not have tests. Please make sure to add tests before merging. If you need an exemption to this rule, contact Hixie or stuartmorgan on the #hackers channel in Chat (don't just cc them here, they won't see it! Use Discord!).

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.

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32384589-a60f0e74-c078-11e7-9bc1-e5b5287aea9d

@jiahaog jiahaog added the autosubmit Merge PR when tree becomes green via auto submit App label Nov 7, 2023
@auto-submit auto-submit bot merged commit 5833714 into flutter:main Nov 8, 2023
23 checks passed
@jiahaog jiahaog deleted the fix-narrow branch November 8, 2023 02:57
engine-flutter-autoroll added a commit to engine-flutter-autoroll/flutter that referenced this pull request Nov 8, 2023
engine-flutter-autoroll added a commit to engine-flutter-autoroll/flutter that referenced this pull request Nov 8, 2023
auto-submit bot pushed a commit to flutter/flutter that referenced this pull request Nov 8, 2023
…138091)

flutter/engine@3e3be5e...117d47a

2023-11-08 skia-flutter-autoroll@skia.org Roll Skia from fce71a80b0a2 to a4cce5236dcf (1 revision) (flutter/engine#47807)
2023-11-08 chris@bracken.jp [macOS] Clean up resources in ViewController tests (flutter/engine#47792)
2023-11-08 skia-flutter-autoroll@skia.org Roll Skia from f3d250126ba9 to fce71a80b0a2 (1 revision) (flutter/engine#47796)
2023-11-08 skia-flutter-autoroll@skia.org Roll Skia from b4fa927468e6 to f3d250126ba9 (1 revision) (flutter/engine#47793)
2023-11-08 flar@google.com [Impeller] Add Rect::GetNormalizingTransform to handle UV coordinate conversion (flutter/engine#47775)
2023-11-08 98614782+auto-submit[bot]@users.noreply.github.com Reverts "Remove Fuchsia Mac SDK from DEPS" (flutter/engine#47791)
2023-11-08 yjbanov@google.com [web] fix clicks on merged semantic nodes (attempt #2) (flutter/engine#47360)
2023-11-08 skia-flutter-autoroll@skia.org Roll Skia from 0f78e5f765d3 to b4fa927468e6 (1 revision) (flutter/engine#47788)
2023-11-08 skia-flutter-autoroll@skia.org Roll Fuchsia Linux SDK from VcFEJiUUTYwkhEAlJ... to sD8HRA4JmXczujkqO... (flutter/engine#47785)
2023-11-08 jiahaog@users.noreply.github.com Fix narrowing conversion lint (flutter/engine#47740)
2023-11-08 chris@bracken.jp [macOS] Bail out of tests if engine not running (flutter/engine#47771)
2023-11-08 skia-flutter-autoroll@skia.org Roll Skia from f91d39395e85 to 0f78e5f765d3 (1 revision) (flutter/engine#47776)
2023-11-08 chris@bracken.jp [testing] Extract StreamCapture test utility (flutter/engine#47774)
2023-11-08 98614782+auto-submit[bot]@users.noreply.github.com Reverts "Promote fuchsia build v2 to prod." (flutter/engine#47779)
2023-11-08 aam@google.com Include updated locations for dart third_party components into license ignore-list. (flutter/engine#47770)
2023-11-07 chillers@google.com Remove Fuchsia Mac SDK from DEPS (flutter/engine#47700)
2023-11-07 skia-flutter-autoroll@skia.org Roll Skia from 030e21befbc9 to f91d39395e85 (6 revisions) (flutter/engine#47769)
2023-11-07 chinmaygarde@google.com [Impeller] Support static thread safety analysis with condition variables. (flutter/engine#47763)
2023-11-07 godofredoc@google.com Promote fuchsia build v2 to prod. (flutter/engine#47729)
2023-11-07 737941+loic-sharma@users.noreply.github.com [Windows] Reduce warnings produced by unit tests (flutter/engine#47724)

Also rolling transitive DEPS:
  fuchsia/sdk/core/linux-amd64 from VcFEJiUUTYwk to sD8HRA4JmXcz

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/flutter-engine-flutter-autoroll
Please CC bdero@google.com,rmistry@google.com,zra@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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