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Analyzer false positive for unused call extension member. #47041

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lrhn opened this issue Aug 30, 2021 · 3 comments
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Analyzer false positive for unused call extension member. #47041

lrhn opened this issue Aug 30, 2021 · 3 comments
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@scheglov
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area-analyzer Use area-analyzer for Dart analyzer issues, including the analysis server and code completion. P2 A bug or feature request we're likely to work on type-bug Incorrect behavior (everything from a crash to more subtle misbehavior)

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@lrhn
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lrhn commented Aug 30, 2021

Example:

extension on Type {
  int call<T>() => 2;
}

void main() {
  print((int)<int>());
}

This code gives a warning about the call method not being used, even though it is.
@lrhn lrhn added area-analyzer Use area-analyzer for Dart analyzer issues, including the analysis server and code completion. type-bug Incorrect behavior (everything from a crash to more subtle misbehavior) labels Aug 30, 2021
@jcollins-g jcollins-g added the P1 A high priority bug; for example, a single project is unusable or has many test failures label Aug 30, 2021
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marked P1 for incorrect analysis warning on edge case without workaround (besides "don't have a call extension method").

@jcollins-g jcollins-g added P2 A bug or feature request we're likely to work on and removed P1 A high priority bug; for example, a single project is unusable or has many test failures labels Aug 31, 2021
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this does have a workaround; disabling the warning.

@scheglov scheglov self-assigned this Sep 8, 2021
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scheglov commented Sep 8, 2021

https://dart-review.googlesource.com/c/sdk/+/212840

@scheglov scheglov closed this as completed Sep 8, 2021
dart-bot pushed a commit that referenced this issue Sep 8, 2021
@scheglov
Issue 47041. Fix false positive for call() declaration in a private e…
d2bde7a 
…xtension.

Bug: #47041
Change-Id: Ib37c03ad7350c489f6ee0673000705bdc3f1d01c
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/212840
Reviewed-by: Samuel Rawlins <srawlins@google.com>
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Konstantin Shcheglov <scheglov@google.com>
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area-analyzer Use area-analyzer for Dart analyzer issues, including the analysis server and code completion. P2 A bug or feature request we're likely to work on type-bug Incorrect behavior (everything from a crash to more subtle misbehavior)
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@scheglov @lrhn @jcollins-g