stream: inline needMoreData function, add edge-case tests #21009
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Inline the needMoreData function since it has only one call place. Update the related comment. Add a test for the edge case where HWM=0 and state.length=0. Add a test for ReadableStream.read(n) method's edge case where n, HWM and state.length are all zero. This proves that there is no easy way to simplify the check at https://github.com/nodejs/node/blob/master/lib/_stream_readable.js#L440 Fixes: nodejs#19893 Refs: nodejs#19896
nodejs-github-bot
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Why the runtime code change? Also, why the code comment change? |
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Thanks for the comment explanation. LGTM |
jasnell
approved these changes
May 29, 2018
lance
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Jun 1, 2018
trivikr
approved these changes
Jun 2, 2018
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Landed in 1c07ebf |
mcollina
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Jun 2, 2018
Inline the needMoreData function since it has only one call place. Update the related comment. Add a test for the edge case where HWM=0 and state.length=0. Add a test for ReadableStream.read(n) method's edge case where n, HWM and state.length are all zero. This proves that there is no easy way to simplify the check at https://github.com/nodejs/node/blob/master/lib/_stream_readable.js#L440 Fixes: #19893 Refs: #19896 PR-URL: #21009 Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Lance Ball <lball@redhat.com> Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
MylesBorins
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that referenced
this pull request
Jun 6, 2018
Inline the needMoreData function since it has only one call place. Update the related comment. Add a test for the edge case where HWM=0 and state.length=0. Add a test for ReadableStream.read(n) method's edge case where n, HWM and state.length are all zero. This proves that there is no easy way to simplify the check at https://github.com/nodejs/node/blob/master/lib/_stream_readable.js#L440 Fixes: #19893 Refs: #19896 PR-URL: #21009 Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Lance Ball <lball@redhat.com> Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
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Checklist
make -j4 test(UNIX), orvcbuild test(Windows) passes