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feat(eslint-plugin): [naming-convention] improve performance by removing unnecessary selectors #6376

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merged 4 commits into from
Jan 31, 2023

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bradzacher
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Part of my performance investigations on large codebases.
Right now we always register every single node selector in naming-convention, even if the user's config will never match that selector.

This is bad because eslint registers, parses and evaluates these selectors. All totalled these selectors combined pretty-well add up to every single identifier in the codebase!
Which is a lot of processing that's not required!

It's a simple change that can save 10s of seconds on codebases that don't use the default config selector.

@bradzacher bradzacher added the performance Issues regarding performance label Jan 25, 2023
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Thanks for the PR, @bradzacher!

typescript-eslint is a 100% community driven project, and we are incredibly grateful that you are contributing to that community.

The core maintainers work on this in their personal time, so please understand that it may not be possible for them to review your work immediately.

Thanks again!


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codecov bot commented Jan 25, 2023

Codecov Report

Merging #6376 (3a7aed3) into main (5bf7f7f) will increase coverage by 0.12%.
The diff coverage is 95.72%.

❗ Current head 3a7aed3 differs from pull request most recent head 84767a5. Consider uploading reports for the commit 84767a5 to get more accurate results

Additional details and impacted files
@@            Coverage Diff             @@
##             main    #6376      +/-   ##
==========================================
+ Coverage   91.38%   91.51%   +0.12%     
==========================================
  Files         368      368              
  Lines       12608    12584      -24     
  Branches     3713     3704       -9     
==========================================
- Hits        11522    11516       -6     
+ Misses        770      752      -18     
  Partials      316      316              
Flag Coverage Δ
unittest 91.51% <95.72%> (+0.12%) ⬆️

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

Impacted Files Coverage Δ
...kages/eslint-plugin/src/rules/naming-convention.ts 89.11% <95.72%> (+7.09%) ⬆️

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Love it!! ❤️‍🔥

packages/eslint-plugin/src/rules/naming-convention.ts Outdated Show resolved Hide resolved
@JoshuaKGoldberg JoshuaKGoldberg merged commit 3647a1c into main Jan 31, 2023
@JoshuaKGoldberg JoshuaKGoldberg deleted the naming-convention-improve-perf branch January 31, 2023 20:46
@github-actions github-actions bot locked as resolved and limited conversation to collaborators Feb 8, 2023
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