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Update iterable in channel_buffers.dart to use isNotEmpty - #194286

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braedons:list-queue-not-empty
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braedons:list-queue-not-empty

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This is to unblock fixing dart-lang/sdk#61332, which expands the lint rule to ListQueues.

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…than `!isEmpty`.

This is to unblock fixing dart-lang/sdk#61332, which expands the lint rule to `ListQueue`s
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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.

@github-actions github-actions Bot added engine flutter/engine related. See also e: labels. platform-web Web applications specifically team-web Owned by Web platform team labels Oct 13, 2026

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This pull request updates the drain method in ChannelBuffers to use channel._queue.isNotEmpty instead of !channel._queue.isEmpty for checking the queue status. There are no review comments, and I have no feedback to provide.

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