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fix(eslint-plugin): [no-restricted-imports]: report type-only imports properly #3996

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Merged
merged 2 commits into from
Oct 18, 2021
Merged

fix(eslint-plugin): [no-restricted-imports]: report type-only imports properly #3996

merged 2 commits into from
Oct 18, 2021

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rafaelss95
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@rafaelss95 rafaelss95 commented Oct 12, 2021 •
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Currently, the rule ignores type-only imports even if you don't specify the allowTypeImports option.

So this, for example:

import type { InvalidTestCase } from '@typescript-eslint/experimental-utils/dist/ts-eslint';

should be reported if you don't specify the allowTypeImports option, however it isn't with the following config:

"@typescript-eslint/no-restriced-imports": [
  "error",
  {
    "patterns": ["@typescript-eslint/experimental-utils/dist/*"],
  },
]

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Thanks for the PR, @rafaelss95!

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!

🙏 Please, if you or your company is finding typescript-eslint valuable, help us sustain the project by sponsoring it transparently on https://opencollective.com/typescript-eslint. As a thank you, your profile/company logo will be added to our main README which receives thousands of unique visitors per day.

rafaelss95
rafaelss95 commented Oct 12, 2021
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packages/eslint-plugin/src/rules/no-restricted-imports.ts
Comment on lines +154 to +157
allowedImportTypeMatchers.length > 0 &&
allowedImportTypeMatchers.every(matcher => {
return matcher.ignores(importSource);
})
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The problem was that allowedImportTypeMatchers remains empty when you don't specify allowTypeImports: true in options... and every returns true even for an empty array (ref: https://262.ecma-international.org/6.0/#sec-array.prototype.every).

@rafaelss95 rafaelss95 mentioned this pull request Oct 12, 2021
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nx-cloud bot commented Oct 12, 2021 •
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Nx Cloud Report

CI ran the following commands for commit 6cd6f9c. Click to see the status, the terminal output, and the build insights.

📂 See all runs for this branch

Status Command
#000000 Node 16.x - nx test @typescript-eslint/eslint-plugin-tslint
#000000 Node 16.x - nx test @typescript-eslint/eslint-plugin
#000000 Node 12.x - nx test @typescript-eslint/eslint-plugin-tslint
#000000 Node 12.x - nx test @typescript-eslint/eslint-plugin
#000000 Node 12.x - nx test @typescript-eslint/eslint-plugin-internal
#000000 Node 12.x - nx test @typescript-eslint/eslint-plugin-tslint
#000000 Node 12.x - nx test @typescript-eslint/eslint-plugin
#000000 Node 14.x - nx test @typescript-eslint/eslint-plugin-tslint
#000000 Node 14.x - nx test @typescript-eslint/eslint-plugin
#000000 Node 12.x - nx run-many --target=typecheck --all --parallel
#000000 Node 16.x - nx test @typescript-eslint/parser
#000000 Node 16.x - nx test @typescript-eslint/experimental-utils
#000000 Node 12.x - nx test @typescript-eslint/parser
#000000 Node 12.x - nx test @typescript-eslint/parser
#000000 Node 16.x - nx test @typescript-eslint/scope-manager
#000000 Node 12.x - nx test @typescript-eslint/experimental-utils
#000000 Node 12.x - nx test @typescript-eslint/experimental-utils
#000000 Node 12.x - nx test @typescript-eslint/scope-manager
#000000 Node 16.x - nx test @typescript-eslint/visitor-keys
#000000 Node 12.x - nx run-many --target=build --all --parallel

Sent with 💌 from NxCloud.

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codecov bot commented Oct 12, 2021 •
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Codecov Report

Merging #3996 (6cd6f9c) into master (c51eef1) will decrease coverage by 0.05%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #3996      +/-   ##
==========================================
- Coverage   93.40%   93.35%   -0.06%     
==========================================
  Files         151      151              
  Lines        8093     7941     -152     
  Branches     2568     2544      -24     
==========================================
- Hits         7559     7413     -146     
+ Misses        181      179       -2     
+ Partials      353      349       -4
Flag Coverage Δ
unittest 93.35% <100.00%> (-0.06%) ⬇️

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

Impacted Files Coverage Δ
...s/eslint-plugin/src/rules/no-restricted-imports.ts 96.49% <100.00%> (+3.63%) ⬆️
packages/eslint-plugin/src/util/escapeRegExp.ts 75.00% <0.00%> (-5.00%) ⬇️
packages/eslint-plugin/src/util/propertyTypes.ts 87.50% <0.00%> (-1.39%) ⬇️
...ackages/eslint-plugin/src/rules/no-var-requires.ts 87.50% <0.00%> (-1.39%) ⬇️
...ages/eslint-plugin/src/rules/unified-signatures.ts 91.89% <0.00%> (-0.80%) ⬇️
...plugin/src/rules/no-unnecessary-type-constraint.ts 85.00% <0.00%> (-0.72%) ⬇️
packages/eslint-plugin/src/rules/quotes.ts 88.88% <0.00%> (-0.59%) ⬇️
packages/eslint-plugin/src/util/astUtils.ts 88.88% <0.00%> (-0.59%) ⬇️
...ges/eslint-plugin/src/rules/no-inferrable-types.ts 92.85% <0.00%> (-0.48%) ⬇️
...int-plugin/src/rules/consistent-type-assertions.ts 86.11% <0.00%> (-0.38%) ⬇️
... and 72 more

@JoshuaKGoldberg
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@rafaelss95 could you please file an issue describing what's wrong with type-only imports in the no-restricted-imports, or failing that fill out this PR description with an explanation of what's wrong?

Most PRs generally are asked to correspond to an existing issue to make make sure the change is something that would be accepted before you spend too much time working on it. This one is a definite win IMO, so perhaps just a heads up for next time. 🙂

@bradzacher bradzacher added awaiting response Issues waiting for a reply from the OP or another party bug Something isn't working labels Oct 14, 2021
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rafaelss95 commented Oct 14, 2021 •
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@rafaelss95 could you please file an issue describing what's wrong with type-only imports in the no-restricted-imports, or failing that fill out this PR description with an explanation of what's wrong?

Hey @JoshuaKGoldberg, I've edited the PR description, let me know if it's enough for you.

Most PRs generally are asked to correspond to an existing issue to make make sure the change is something that would be accepted before you spend too much time working on it. This one is a definite win IMO, so perhaps just a heads up for next time. 🙂

I fully agree. I usually do this, however, this one was so simple to grasp and execute (basically a one-line change) that I didn't even bother to fill in the entire issue template and then implement it. But I'll keep in mind that it's always better to create an issue first, thanks.

I think to help with that, it'd be better to create PR templates to inform people to file an issue before create PRs, but it's just an idea.

@JoshuaKGoldberg JoshuaKGoldberg mentioned this pull request Oct 14, 2021
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create PR templates

💯 , and 😱 thanks for the callout! I didn't register ours don't explicitly ask for that! #4010

JoshuaKGoldberg
JoshuaKGoldberg approved these changes Oct 16, 2021
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Looks great to me, thanks!

I don't know why CI is complaining about jest/globals...

@bradzacher bradzacher added 1 approval >=1 team member has approved this PR; we're now leaving it open for more reviews before we merge and removed awaiting response Issues waiting for a reply from the OP or another party 1 approval >=1 team member has approved this PR; we're now leaving it open for more reviews before we merge labels Oct 18, 2021
@bradzacher bradzacher merged commit 283cdf2 into typescript-eslint:master Oct 18, 2021
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@rafaelss95 @JoshuaKGoldberg @bradzacher