refactor(linter/plugins): move assertions into own file

[overlookmotel]

Pure refactor. Split up plugins/utils.ts into 3 files in utils directory.

Most importantly, assertion functions are by themselves in an asserts.ts file. This paves the way for the next PR (#15946).

[overlookmotel]

• build(linter/plugins): simplify TSDown config #15948
• refactor(linter/plugins): replace ! with assertIsNonNull #15947
• refactor(linter/plugins): ensure debug assertions always shaken out of release build #15946
• refactor(linter/plugins): move assertions into own file #15945 👈 (View in Graphite)
• main

---

How to use the Graphite Merge Queue

Add either label to this PR to merge it via the merge queue:

• 0-merge - adds this PR to the back of the merge queue
• hotfix - for urgent hot fixes, skip the queue and merge this PR next

You must have a Graphite account in order to use the merge queue. Sign up using this link.

An organization admin has enabled the Graphite Merge Queue in this repository.

Please do not merge from GitHub as this will restart CI on PRs being processed by the merge queue.

This stack of pull requests is managed by Graphite. Learn more about stacking.

[Copilot]

Pull request overview

This PR refactors the plugins/utils.ts file by splitting it into three focused files within a new utils directory: asserts.ts for assertion functions, types.ts for type utilities, and utils.ts for general utility functions. This reorganization improves code organization and prepares for future changes mentioned in PR #15946.

Key Changes:

• Split plugins/utils.ts into three separate files: utils/asserts.ts, utils/types.ts, and utils/utils.ts
• Updated 12 import statements across the codebase to reference the new file locations
• Removed unnecessary // oxlint-disable-next-line no-unused-vars comment from assertIsNonNull function

Reviewed changes

Copilot reviewed 16 out of 16 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
apps/oxlint/src-js/utils/utils.ts	New file containing getErrorMessage utility function moved from plugins/utils.ts
apps/oxlint/src-js/utils/types.ts	New file containing SetNullable type utility moved from plugins/utils.ts
apps/oxlint/src-js/utils/asserts.ts	New file containing assertion functions (assertIs, assertIsNonNull) moved from plugins/utils.ts
apps/oxlint/src-js/plugins/visitor.ts	Updated import path for assertion functions to ../utils/asserts.js
apps/oxlint/src-js/plugins/utils.ts	File deleted - content split into three new files
apps/oxlint/src-js/plugins/tokens.ts	Updated import path for assertIsNonNull to ../utils/asserts.js
apps/oxlint/src-js/plugins/source_code.ts	Updated import path for assertIsNonNull to ../utils/asserts.js
apps/oxlint/src-js/plugins/settings.ts	Updated import path for assertIsNonNull to ../utils/asserts.js
apps/oxlint/src-js/plugins/scope.ts	Updated import paths for assertions to ../utils/asserts.js and types to ../utils/types.ts
apps/oxlint/src-js/plugins/location.ts	Updated import path for assertIsNonNull to ../utils/asserts.js
apps/oxlint/src-js/plugins/load.ts	Updated import paths for getErrorMessage and SetNullable type to new locations
apps/oxlint/src-js/plugins/lint.ts	Split imports to reference both ../utils/asserts.js and ../utils/utils.js
apps/oxlint/src-js/plugins/fix.ts	Updated import path for assertIs to ../utils/asserts.js
apps/oxlint/src-js/plugins/context.ts	Updated import path for assertIsNonNull to ../utils/asserts.js
apps/oxlint/src-js/plugins/comments.ts	Updated import path for assertIsNonNull to ../utils/asserts.js
apps/oxlint/src-js/index.ts	Updated import paths for assertions and types to reference new utils/ directory

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[camc314]

Merge activity

• Nov 21, 2:41 PM UTC: The merge label '0-merge' was detected. This PR will be added to the Graphite merge queue once it meets the requirements.
• Nov 21, 2:42 PM UTC: camc314 added this pull request to the Graphite merge queue.
• Nov 21, 2:48 PM UTC: Merged by the Graphite merge queue.