fix(eslint-plugin): [no-unnecessary-type-assertion] should report readonly class properties with a literal initializer #10618

y-hsgw · 2025-01-06T09:39:29Z

PR Checklist

Addresses an existing open issue: fixes Bug: [no-unnecessary-type-assertion] should report readonly class properties with a literal initializer #10617
That issue was marked as accepting prs
Steps in Contributing were taken

Overview

Fixed the bug described in the title.

🐛

typescript-eslint · 2025-01-06T09:39:33Z

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nx-cloud · 2025-01-06T09:40:23Z

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codecov · 2025-01-06T09:55:22Z

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.26%. Comparing base (a175189) to head (a320eaf).
Report is 43 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #10618      +/-   ##
==========================================
+ Coverage   87.00%   87.26%   +0.26%     
==========================================
  Files         447      450       +3     
  Lines       15586    15715     +129     
  Branches     4542     4601      +59     
==========================================
+ Hits        13560    13714     +154     
+ Misses       1671     1645      -26     
- Partials      355      356       +1

Flag	Coverage Δ
unittest	`87.26% <100.00%> (+0.26%)`	⬆️

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

Files with missing lines	Coverage Δ
...-plugin/src/rules/no-unnecessary-type-assertion.ts	`98.01% <100.00%> (+0.06%)`	⬆️

... and 104 files with indirect coverage changes

…to fix/no-unnecessary-type-assertion

ronami

Just minor changes requested. Looks great! 🚀

packages/eslint-plugin/src/rules/no-unnecessary-type-assertion.ts

packages/eslint-plugin/tests/rules/no-unnecessary-type-assertion.test.ts

ronami

The implementation looks great to me, nice! 👍

Requesting changes a bit on tests and potentially checking template literals just once, thanks!

packages/eslint-plugin/tests/rules/no-unnecessary-type-assertion.test.ts

packages/eslint-plugin/src/rules/no-unnecessary-type-assertion.ts

ronami

👍👍 Thanks! looking really good! Requesting small adjustments around testing.

packages/eslint-plugin/tests/rules/no-unnecessary-type-assertion.test.ts

ronami

Just one small change I missed previously, other than that this looks fantastic 🏆

packages/eslint-plugin/tests/rules/no-unnecessary-type-assertion.test.ts

ronami

Thank you for pushing this 🚀

JoshuaKGoldberg

🚀

@OlivierZal

| datasource | package | from | to | | ---------- | -------------------------------- | ------ | ------ | | npm | @typescript-eslint/eslint-plugin | 8.22.0 | 8.23.0 | | npm | @typescript-eslint/parser | 8.22.0 | 8.23.0 | ## [v8.23.0](https://github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/eslint-plugin/CHANGELOG.md#8230-2025-02-03) ##### 🚀 Features - **eslint-plugin:** \[no-unnecessary-boolean-literal-compare] enforce strictNullChecks ([#10712](typescript-eslint/typescript-eslint#10712)) ##### 🩹 Fixes - **eslint-plugin:** \[no-shadow] ignore declare variables in definition files shadowing global variables ([#10710](typescript-eslint/typescript-eslint#10710)) - **eslint-plugin:** \[no-restricted-imports] support regex option ([#10699](typescript-eslint/typescript-eslint#10699)) - **eslint-plugin:** \[dot-notation] handle noPropertyAccessFromIndexSignature true ([#10644](typescript-eslint/typescript-eslint#10644)) - **eslint-plugin:** \[prefer-nullish-coalescing] fix missing return ([#10732](typescript-eslint/typescript-eslint#10732)) - bump ts-api-utils to ^2.0.1 ([#10761](typescript-eslint/typescript-eslint#10761)) - **eslint-plugin:** \[no-unnecessary-template-expression] allow interpolating type parameter in type context ([#10739](typescript-eslint/typescript-eslint#10739)) - **eslint-plugin:** \[switch-exhaustiveness-check] suggest with qualified name ([#10697](typescript-eslint/typescript-eslint#10697)) - **eslint-plugin:** \[no-unnecessary-type-assertion] should report readonly class properties with a literal initializer ([#10618](typescript-eslint/typescript-eslint#10618)) ##### ❤️ Thank You - Josh Goldberg ✨ - Olivier Zalmanski [@OlivierZal](https://github.com/OlivierZal) - Ryan Poon [@sopa301](https://github.com/sopa301) - YeonJuan [@yeonjuan](https://github.com/yeonjuan) - Yukihiro Hasegawa [@y-hsgw](https://github.com/y-hsgw) You can read about our [versioning strategy](https://main--typescript-eslint.netlify.app/users/versioning) and [releases](https://main--typescript-eslint.netlify.app/users/releases) on our website.

@OlivierZal

| datasource | package | from | to | | ---------- | -------------------------------- | ------ | ------ | | npm | @typescript-eslint/eslint-plugin | 8.22.0 | 8.23.0 | | npm | @typescript-eslint/parser | 8.22.0 | 8.23.0 | ## [v8.23.0](https://github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/eslint-plugin/CHANGELOG.md#8230-2025-02-03) ##### 🚀 Features - **eslint-plugin:** \[no-unnecessary-boolean-literal-compare] enforce strictNullChecks ([#10712](typescript-eslint/typescript-eslint#10712)) ##### 🩹 Fixes - **eslint-plugin:** \[no-shadow] ignore declare variables in definition files shadowing global variables ([#10710](typescript-eslint/typescript-eslint#10710)) - **eslint-plugin:** \[no-restricted-imports] support regex option ([#10699](typescript-eslint/typescript-eslint#10699)) - **eslint-plugin:** \[dot-notation] handle noPropertyAccessFromIndexSignature true ([#10644](typescript-eslint/typescript-eslint#10644)) - **eslint-plugin:** \[prefer-nullish-coalescing] fix missing return ([#10732](typescript-eslint/typescript-eslint#10732)) - bump ts-api-utils to ^2.0.1 ([#10761](typescript-eslint/typescript-eslint#10761)) - **eslint-plugin:** \[no-unnecessary-template-expression] allow interpolating type parameter in type context ([#10739](typescript-eslint/typescript-eslint#10739)) - **eslint-plugin:** \[switch-exhaustiveness-check] suggest with qualified name ([#10697](typescript-eslint/typescript-eslint#10697)) - **eslint-plugin:** \[no-unnecessary-type-assertion] should report readonly class properties with a literal initializer ([#10618](typescript-eslint/typescript-eslint#10618)) ##### ❤️ Thank You - Josh Goldberg ✨ - Olivier Zalmanski [@OlivierZal](https://github.com/OlivierZal) - Ryan Poon [@sopa301](https://github.com/sopa301) - YeonJuan [@yeonjuan](https://github.com/yeonjuan) - Yukihiro Hasegawa [@y-hsgw](https://github.com/y-hsgw) You can read about our [versioning strategy](https://main--typescript-eslint.netlify.app/users/versioning) and [releases](https://main--typescript-eslint.netlify.app/users/releases) on our website.

y-hsgw added 2 commits January 6, 2025 18:37

fix: handle readonly class properties

62b77e7

test: add test

80b23fd

y-hsgw changed the title ~~fix: [no-unnecessary-type-assertion] should report readonly class properties with a literal initializer~~ fix(eslint-plugin): [no-unnecessary-type-assertion] should report readonly class properties with a literal initializer Jan 6, 2025

Merge branch 'main' of https://github.com/y-hsgw/typescript-eslint in…

1a8112d

…to fix/no-unnecessary-type-assertion

ronami requested changes Jan 17, 2025

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ronami added the awaiting response Issues waiting for a reply from the OP or another party label Jan 17, 2025

ronami mentioned this pull request Jan 17, 2025

test(eslint-plugin): adjust tests to verify no-unnecessary-type-assertion doesn't report template literals with expressions #10671

Merged

3 tasks

y-hsgw added 2 commits January 17, 2025 23:22

test: add valid case

d20d458

fix: check that template literals nodes have no expressions in them

b0924e7

y-hsgw requested a review from ronami January 17, 2025 14:49

github-actions bot removed the awaiting response Issues waiting for a reply from the OP or another party label Jan 17, 2025

ronami requested changes Jan 21, 2025

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y-hsgw added 2 commits January 22, 2025 07:59

test: split invalid test

d000227

refactor: create isImplicitlyNarrowedLiteralDeclaration function

cc7a718

y-hsgw requested a review from ronami January 21, 2025 23:14

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test: add test

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y-hsgw requested a review from ronami January 24, 2025 12:20

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test: remove test

a320eaf

y-hsgw requested a review from ronami January 27, 2025 23:26

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ronami approved these changes Jan 28, 2025

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ronami added the 1 approval >=1 team member has approved this PR; we're now leaving it open for more reviews before we merge label Jan 28, 2025

JoshuaKGoldberg approved these changes Jan 28, 2025

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JoshuaKGoldberg merged commit 1c73754 into typescript-eslint:main Jan 28, 2025
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y-hsgw deleted the fix/no-unnecessary-type-assertion branch January 28, 2025 23:46

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fix(eslint-plugin): [no-unnecessary-type-assertion] should report readonly class properties with a literal initializer #10618

fix(eslint-plugin): [no-unnecessary-type-assertion] should report readonly class properties with a literal initializer #10618

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fix(eslint-plugin): [no-unnecessary-type-assertion] should report readonly class properties with a literal initializer #10618

fix(eslint-plugin): [no-unnecessary-type-assertion] should report readonly class properties with a literal initializer #10618

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