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[array-type] Incorrect fix when using an Array of arrow functions with rest parameters #4756

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cheit-epic opened this issue Mar 28, 2022 · 3 comments · Fixed by #4971
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bug Something isn't working has pr there is a PR raised to close this package: eslint-plugin Issues related to @typescript-eslint/eslint-plugin

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@cheit-epic
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  • I have tried restarting my IDE and the issue persists.
  • I have updated to the latest version of the packages.
  • I have read the FAQ and my problem is not listed.

Repro

{
  "rules": {
    "@typescript-eslint/array-type": "error"
  }
}
const foo: Array<new (...args: any[]) => void> = [];

Expected Result

const foo: (new (...args: any[]) => void)[] = [];

Actual Result

const foo: new (...args: any[]) => void[] = [];

The lack of parentheses changes the type to be "a function that returns void[]" rather than "an array of functions that return void"

Versions

package version
@typescript-eslint/eslint-plugin 5.17.0
@typescript-eslint/parser 5.17.0
TypeScript 4.4.4
ESLint 8.8.0
node 8.1.0
@cheit-epic cheit-epic added package: eslint-plugin Issues related to @typescript-eslint/eslint-plugin triage Waiting for maintainers to take a look labels Mar 28, 2022
@bradzacher bradzacher added bug Something isn't working accepting prs Go ahead, send a pull request that resolves this issue and removed triage Waiting for maintainers to take a look labels Mar 28, 2022
@bradzacher
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Same story with us not handling precedence correctly. We can reuse our new functions to help fix this.

@bradharms
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The title of this report may be wrong. The issue seems to be more with the type of an array of a constructor that takes a rest parameter:

Array<new (...args: any[]) => any> is corrected as new (...args: any[]) => any[]

I don't see the problem occurring for an array of functions:

Array<(...args: any[]) => any> is corrected as ((...args: any[]) => any)[]

@armano2 armano2 added has pr there is a PR raised to close this and removed accepting prs Go ahead, send a pull request that resolves this issue labels May 14, 2022
@armano2
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armano2 commented May 14, 2022

@bradharms correct, issue is present for type constructors TSConstructorType

JoshuaKGoldberg pushed a commit that referenced this issue May 14, 2022
…tructor types #4756 (#4971)

fix(eslint-plugin): add missing parens in array-type for constructor types #4756
crapStone pushed a commit to Calciumdibromid/CaBr2 that referenced this issue May 19, 2022
This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [@typescript-eslint/eslint-plugin](https://github.com/typescript-eslint/typescript-eslint) | devDependencies | minor | [`5.23.0` -> `5.25.0`](https://renovatebot.com/diffs/npm/@typescript-eslint%2feslint-plugin/5.23.0/5.25.0) |
| [@typescript-eslint/parser](https://github.com/typescript-eslint/typescript-eslint) | devDependencies | minor | [`5.23.0` -> `5.25.0`](https://renovatebot.com/diffs/npm/@typescript-eslint%2fparser/5.23.0/5.25.0) |

---

### Release Notes

<details>
<summary>typescript-eslint/typescript-eslint (@&#8203;typescript-eslint/eslint-plugin)</summary>

### [`v5.25.0`](https://github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/eslint-plugin/CHANGELOG.md#&#8203;5250-httpsgithubcomtypescript-eslinttypescript-eslintcomparev5240v5250-2022-05-17)

[Compare Source](typescript-eslint/typescript-eslint@v5.24.0...v5.25.0)

##### Bug Fixes

-   **eslint-plugin:** \[typedef] stop enforcing rule for assignment expressions ([#&#8203;4958](typescript-eslint/typescript-eslint#4958)) ([04a216c](typescript-eslint/typescript-eslint@04a216c))
-   **eslint-plugin:** strict config should not extend recommended ([#&#8203;5005](typescript-eslint/typescript-eslint#5005)) ([05d71c2](typescript-eslint/typescript-eslint@05d71c2))
-   **website:** correct Presets link to be Configs ([#&#8203;5004](typescript-eslint/typescript-eslint#5004)) ([e18e91c](typescript-eslint/typescript-eslint@e18e91c))

##### Features

-   **eslint-plugin:** \[no-empty-function] new allow option overrideMethods ([#&#8203;4923](typescript-eslint/typescript-eslint#4923)) ([13c05ae](typescript-eslint/typescript-eslint@13c05ae))
-   **eslint-plugin:** deprecate `no-duplicate-imports` in favour of `import/no-duplicates` ([#&#8203;4973](typescript-eslint/typescript-eslint#4973)) ([1d2e41a](typescript-eslint/typescript-eslint@1d2e41a))
-   update to TypeScript 4.7-rc ([#&#8203;4829](typescript-eslint/typescript-eslint#4829)) ([6fe783c](typescript-eslint/typescript-eslint@6fe783c))

### [`v5.24.0`](https://github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/eslint-plugin/CHANGELOG.md#&#8203;5240-httpsgithubcomtypescript-eslinttypescript-eslintcomparev5230v5240-2022-05-16)

[Compare Source](typescript-eslint/typescript-eslint@v5.23.0...v5.24.0)

##### Bug Fixes

-   **eslint-plugin:** \[array-type] in fixer add missing parens for constructor types [#&#8203;4756](typescript-eslint/typescript-eslint#4756) ([#&#8203;4971](typescript-eslint/typescript-eslint#4971)) ([0377070](typescript-eslint/typescript-eslint@0377070))

##### Features

-   **eslint-plugin:** Add BigInt object type to default ban-types list ([#&#8203;4970](typescript-eslint/typescript-eslint#4970)) ([1867728](typescript-eslint/typescript-eslint@1867728))
-   **eslint-plugin:** add new 'strict' config ([#&#8203;4706](typescript-eslint/typescript-eslint#4706)) ([4a500b2](typescript-eslint/typescript-eslint@4a500b2))

</details>

<details>
<summary>typescript-eslint/typescript-eslint (@&#8203;typescript-eslint/parser)</summary>

### [`v5.25.0`](https://github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/parser/CHANGELOG.md#&#8203;5250-httpsgithubcomtypescript-eslinttypescript-eslintcomparev5240v5250-2022-05-17)

[Compare Source](typescript-eslint/typescript-eslint@v5.24.0...v5.25.0)

**Note:** Version bump only for package [@&#8203;typescript-eslint/parser](https://github.com/typescript-eslint/parser)

### [`v5.24.0`](https://github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/parser/CHANGELOG.md#&#8203;5240-httpsgithubcomtypescript-eslinttypescript-eslintcomparev5230v5240-2022-05-16)

[Compare Source](typescript-eslint/typescript-eslint@v5.23.0...v5.24.0)

**Note:** Version bump only for package [@&#8203;typescript-eslint/parser](https://github.com/typescript-eslint/parser)

</details>

---

### Configuration

📅 **Schedule**: At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about these updates again.

---

 - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, click this checkbox.

---

This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).

Co-authored-by: cabr2-bot <cabr2.help@gmail.com>
Reviewed-on: https://codeberg.org/Calciumdibromid/CaBr2/pulls/1357
Reviewed-by: 6543 <6543@noreply.codeberg.org>
Co-authored-by: Calciumdibromid Bot <cabr2_bot@noreply.codeberg.org>
Co-committed-by: Calciumdibromid Bot <cabr2_bot@noreply.codeberg.org>
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