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fix(eslint-plugin): [prefer-nullish-coalescing] handle case when type of left side is null or undefined #7225

merged 1 commit into from Jul 17, 2023


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@auvred auvred commented Jul 14, 2023

PR Checklist


The edge case: the type of left side can be explicitly null or undefined. Then there will be no types property and type can't be treated as ts.UnionOrIntersectionType

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codecov bot commented Jul 14, 2023

Codecov Report

Merging #7225 (841d45f) into main (e08a722) will increase coverage by 0.00%.
The diff coverage is 100.00%.

Additional details and impacted files
@@           Coverage Diff           @@
##             main    #7225   +/-   ##
  Coverage   87.54%   87.55%           
  Files         377      377           
  Lines       13172    13173    +1     
  Branches     3892     3893    +1     
+ Hits        11532    11533    +1     
  Misses       1261     1261           
  Partials      379      379           
Flag Coverage Δ
unittest 87.55% <100.00%> (+<0.01%) ⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files Coverage Δ
...lint-plugin/src/rules/prefer-nullish-coalescing.ts 99.23% <100.00%> (+<0.01%) ⬆️

@bradzacher bradzacher added the bug Something isn't working label Jul 17, 2023
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@JoshuaKGoldberg JoshuaKGoldberg left a comment

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Yup looks great to me - nice little spot fix. Thanks @auvred! 🙌

@JoshuaKGoldberg JoshuaKGoldberg merged commit b62affe into typescript-eslint:main Jul 17, 2023
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Successfully merging this pull request may close these issues.

Bug: [prefer-nullish-coalescing] internal error when linting on binary expression (||) with nullable type
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