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module: fix main lookup regression from #18728 #18788

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guybedford
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There was a minor regression in #18728 in the package.json main resolution code path.

This includes a test and a fix, hopefully these sort of slips will become harder as the test coverage on the modules work increases.

@bnoordhuis one of the slips here was on the enum booleans being checked as booleans. I considered making them extend boolean, but I assumed the intention is that usage should always be explicit with these, although it's a shame this can't be caught by the compiler at all.

Checklist
  • make -j4 test (UNIX), or vcbuild test (Windows) passes
  • tests and/or benchmarks are included
  • commit message follows commit guidelines
Affected core subsystem(s)

modules

@guybedford guybedford added the esm Issues and PRs related to the ECMAScript Modules implementation. label Feb 14, 2018
@nodejs-github-bot nodejs-github-bot added the c++ Issues and PRs that require attention from people who are familiar with C++. label Feb 14, 2018
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This can be fast tracked IMO

@benjamingr benjamingr added fast-track PRs that do not need to wait for 48 hours to land. author ready PRs that have at least one approval, no pending requests for changes, and a CI started. labels Feb 15, 2018
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Also, that's weird @guybedford - it shouldn't be possible as far as I know :O http://coliru.stacked-crooked.com/a/efc7c335a197e56d

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jdalton commented Feb 15, 2018

@guybedford What was the regression?

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@jdalton the process of applying the package.json main stopped working.

@benjamingr that is really odd then that there was not even a compiler warning, and seems like it could be a problem!

Since we don't have compiler warnings for these cases, do you think I should just extend bool for these enums and switch their parity so they can be treated as booleans without breaking? Just thinking of maintainability here.

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Landed in 7748865 🎉

@BridgeAR BridgeAR closed this Feb 16, 2018
BridgeAR pushed a commit to BridgeAR/node that referenced this pull request Feb 16, 2018
PR-URL: nodejs#18788
Refs: nodejs#18728
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
@guybedford guybedford deleted the main-lookup-regression branch February 17, 2018 09:47
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this should be backported with #18728

guybedford added a commit to guybedford/node that referenced this pull request Mar 4, 2018
PR-URL: nodejs#18788
Refs: nodejs#18728
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
MylesBorins pushed a commit that referenced this pull request Mar 7, 2018
Backport-PR-URL: #18923
PR-URL: #18788
Refs: #18728
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
@MylesBorins MylesBorins mentioned this pull request Mar 7, 2018
MayaLekova pushed a commit to MayaLekova/node that referenced this pull request May 8, 2018
PR-URL: nodejs#18788
Refs: nodejs#18728
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
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7 participants