Tighten relational operator more#52342
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RyanCavanaugh wants to merge 5 commits intomicrosoft:mainfrom
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@typescript-bot test this |
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Heya @RyanCavanaugh, I've started to run the diff-based user code test suite (tsserver) on this PR at 5f7d2d9. You can monitor the build here. Update: The results are in! |
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Heya @RyanCavanaugh, I've started to run the parallelized Definitely Typed test suite on this PR at 5f7d2d9. You can monitor the build here. |
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Heya @RyanCavanaugh, I've started to run the diff-based user code test suite on this PR at 5f7d2d9. You can monitor the build here. Update: The results are in! |
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Heya @RyanCavanaugh, I've started to run the extended test suite on this PR at 5f7d2d9. You can monitor the build here. |
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Heya @RyanCavanaugh, I've started to run the diff-based top-repos suite (tsserver) on this PR at 5f7d2d9. You can monitor the build here. Update: The results are in! |
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Heya @RyanCavanaugh, I've started to run the diff-based top-repos suite on this PR at 5f7d2d9. You can monitor the build here. Update: The results are in! |
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Heya @RyanCavanaugh, I've started to run the perf test suite on this PR at 5f7d2d9. You can monitor the build here. Update: The results are in! |
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@RyanCavanaugh Here are the results of running the user test suite comparing Everything looks good! |
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@RyanCavanaugh Here are the results of running the user test suite comparing Something interesting changed - please have a look. Details
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Heya @RyanCavanaugh, I've run the RWC suite on this PR - assuming you're on the TS core team, you can view the resulting diff here. |
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OK, let's analyze.
export const Ord: O.Ord<boolean> = {
equals: Eq.equals,
compare: (first, second) => (first < second ? -1 : first > second ? 1 : 0)
}This seems more straightforwardly written as Webpack's is... subtle: /**
* @param {string|number} a first id
* @param {string|number} b second id
* @returns {-1|0|1} compare result
*/
const compareIds = (a, b) => {
if (typeof a !== typeof b) {
return typeof a < typeof b ? -1 : 1;
}
if (a < b) return -1;
if (a > b) return 1;
return 0;
};The reasonable objection at the erroring line ( The other break in webpack, here seems like it might also be correct-by-construction but the code is quite complex and I'm not really sure what's going on here. RWC turned up several instances of relating |
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This allows TLD;R we can't really blame this on implicit coercion, since the implicit coercion that occurs in |
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@RyanCavanaugh Here are the results of running the top-repos suite comparing Something interesting changed - please have a look. Detailspalantir/blueprint
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@RyanCavanaugh Here they are:
CompilerComparison Report - main..52342
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TSServerComparison Report - main..52342
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StartupComparison Report - main..52342
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Developer Information: |
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@RyanCavanaugh Here are the results of running the top-repos suite comparing Something interesting changed - please have a look. Details
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Addendum to #52048 per discussion there. Evaluating the real-world code impact before discussing further