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Backport 7176 for v6.x (buffer: fix creating from zero-length ArrayBuffer) #7421

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Backport 7176 for v6.x (buffer: fix creating from zero-length ArrayBuffer) #7421

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@RReverser RReverser commented Jun 25, 2016 •
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Checklist
  • make -j4 test (UNIX) or vcbuild test nosign (Windows) passes
  • a test and/or benchmark is included
  • the commit message follows commit guidelines
Affected core subsystem(s)

buffer

Description of change

This is a backport of #7176 for v6.x. Applied cleanly.

@RReverser
buffer: fix creating from zero-length ArrayBuffer
c2e0b5f 
Fixes regression where creating a new Buffer from an
empty ArrayBuffer would fail.

Ref: 85ab4a5
PR-URL: #7176
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Сковорода Никита Андреевич <chalkerx@gmail.com>
Reviewed-By: Ron Korving <ron@ronkorving.nl>
@nodejs-github-bot nodejs-github-bot added the buffer Issues and PRs related to the buffer subsystem. label Jun 25, 2016
@addaleax addaleax added the v6.x label Jun 25, 2016
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CI: https://ci.nodejs.org/job/node-test-pull-request/3087/

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@RReverser Does the original not land cleanly? If it landed cleanly, back-porting is not necessary.

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Hmm. It did for me, but @evanlucas wrote in the original PR #7176 (comment):

This is not landing cleanly on v6.x. Going to hold off for now. @RReverser interested in opening a backport PR targeting the v6.x branch?

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Interesting, I know for a fact none of the buffer ones landed cleanly, but they could have been depending on something else that has been pulled in now?

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Interesting, I know for a fact none of the buffer ones landed cleanly, but they could have been depending on something else that has been pulled in now?

Perhaps this one couldn't be landed exactly because of dependency on #7349 which didn't apply 100% cleanly, but now that it's merged, this one should be fine.

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@RReverser that makes sense.

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Anyway, I'm happy to either proceed with this PR or close it, just let me know, which way is simpler and preferable :)

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This lgtm, or we could just cherry-pick if it lands cleanly

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It does, so perhaps cherry-pick will be even easier to do.

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I was able to cherry-pick this cleanly on v6.x. Thanks for going through the trouble of doing this though @RReverser!

@evanlucas evanlucas closed this Jul 18, 2016
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@evanlucas No problem at all, thanks for doing that!

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@RReverser @Fishrock123 @evanlucas @addaleax @nodejs-github-bot