feat: Ignore ESLint directive comments in JavaScript and TypeScript

[karlhorky]

Closes #33

Rewrap splits // eslint-disable-next-line and // eslint-disable-line into multiple lines, which breaks behavior because ESLint no longer applies the directive to the intended line.

Other directive forms like eslint-disable and eslint-enable use multi-line comments, - still valid after wrapping - but they become harder to read and review.

Ignore both forms of ESLint directive comments during wrapping in JavaScript and TypeScript and adds specs for these cases.

[karlhorky]

@dnut just circling back around - what do you think of this PR?

[karlhorky]

Hey @dnut, is there anything that I can do to help get this reviewed and merged?

[karlhorky]

@dnut just wanted to check in again, in case you would have time soon to help get this landed.

[dnut]

I think there were a few problems with this implementation. Did you test it? I committed a couple fixes that made it work for me. Let me know what you think.

[Copilot]

Pull request overview

This PR adds support for preventing rewrapping of ESLint configuration comment directives (eslint-disable-next-line and eslint-disable-line) in JavaScript and TypeScript files. These single-line directives must remain on one line to function properly, as breaking them across multiple lines causes ESLint to fail to recognize them.

Changes:

• Added a new eslintConfigComments content parser wrapper that detects ESLint directive comments and prevents them from being wrapped
• Created a new javascript DocumentProcessor that integrates the ESLint parser with existing JavaScript/TypeScript comment handling
• Updated JavaScript and TypeScript language definitions to use the new processor

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
core/Parsers.fs	Added eslintConfigComments parser that detects and prevents wrapping of eslint-disable-next-line and eslint-disable-line directives
core/Parsing.Documents.fs	Created javascript DocumentProcessor and updated JavaScript/TypeScript language configs to use it

---

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

[karlhorky]

@dnut oh thanks! Sorry - I was trying to do that by hand, without much knowledge of F#

Upon review, your two comments seem to make sense:

• 3a50118
• f7800d5

As per the comment from Copilot, I also added tests:

• c82b6dd

AI disclosure: I used gpt-5.3-codex and reviewed the output as best I could

[karlhorky]

In 22cc3ea, I also added support for eslint-disable and eslint-enable comments, since wrapping those can also hurt legibility

[dnut]

Before your changes, there were no test failures:

> ./do test
Core build complete. Running tests:...
Passed: 476; Failed: 0; Errored: 0

I ran the tests on this branch and there are six errors:

> ./do test core
Core build complete. Running tests:...

Error: InvalidWrappingColumn, specs/features/block-comments.md
==Input==
    /* eslint-disable no-console, @typescript-eslint/no-base-to-string -- temporary exception for migration script with long explanation that should stay intact on one line */
    nextLoad(url).source    ¦      ->      /* eslint-disable no-console, @typescript-eslint/no-base-to-string -- temporary exception for migration script with long explanation that should stay intact on one line */
    nextLoad(url).source                   nextLoad(url).source    ¦

Error: InvalidWrappingColumn, specs/features/block-comments.md
==Input==
    /* eslint-enable no-console, @typescript-eslint/no-base-to-string -- restore lint checks after migration script with long explanation that should stay intact on one line */
    nextLoad(url).source    ¦      ->      /* eslint-enable no-console, @typescript-eslint/no-base-to-string -- restore lint checks after migration script with long explanation that should stay intact on one line */
    nextLoad(url).source                   nextLoad(url).source    ¦

Error: InvalidWrappingColumn, specs/features/line-comments.md
==Input==
    // eslint-disable-next-line @typescript-eslint/no-base-to-string -- ModuleSource returns useful information from .toString()
    nextLoad(url).source    ¦      ->      // eslint-disable-next-line @typescript-eslint/no-base-to-string -- ModuleSource returns useful information from .toString()
    nextLoad(url).source                   nextLoad(url).source    ¦

Error: InvalidWrappingColumn, specs/features/line-comments.md
==Input==
    // eslint-disable-line @typescript-eslint/no-base-to-string -- ModuleSource returns useful information from .toString()
    nextLoad(url).source    ¦      ->      // eslint-disable-line @typescript-eslint/no-base-to-string -- ModuleSource returns useful information from .toString()
    nextLoad(url).source                   nextLoad(url).source    ¦

Error: InvalidWrappingColumn, specs/features/line-comments.md
==Input==
    // eslint-disable no-console, @typescript-eslint/no-base-to-string -- temporary exception for migration script
    nextLoad(url).source    ¦      ->      // eslint-disable no-console, @typescript-eslint/no-base-to-string -- temporary exception for migration script
    nextLoad(url).source                   nextLoad(url).source    ¦

Error: InvalidWrappingColumn, specs/features/line-comments.md
==Input==
    // eslint-enable no-console, @typescript-eslint/no-base-to-string -- restore lint checks after migration script
    nextLoad(url).source    ¦      ->      // eslint-enable no-console, @typescript-eslint/no-base-to-string -- restore lint checks after migration script
    nextLoad(url).source                   nextLoad(url).source    ¦
Passed: 476; Failed: 0; Errored: 6

[dnut]

Thanks for your contribution!

There were still some test failures, so I fixed them. The CI was green, but it isn't working properly because test failures are not resulting in non-zero error codes. I'll fix that in another PR.