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Currently you can check this for global functions and exported locals but not normal locals. This adds this (disabled by default).

@NathanSnail NathanSnail changed the title Unannotated function diagnostic Unannotated local function diagnostic Dec 2, 2025
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Summary of Changes

Hello @NathanSnail, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request enhances the static analysis capabilities by introducing a new diagnostic, missing-local-doc, which specifically targets local functions lacking proper documentation. This feature aims to improve code quality and maintainability by encouraging comprehensive annotation of all function types, ensuring consistency with existing checks for global and exported local functions.

Highlights

  • New Diagnostic: missing-local-doc: A new diagnostic has been introduced to identify local functions that are missing comments, parameter annotations, or return annotations. This expands the existing documentation checks beyond global and exported local functions.
  • Default Disabled: The newly added missing-local-doc diagnostic is disabled by default, allowing users to opt-in to this check as needed.
  • Localization Support: Messages for the new diagnostic have been added across various language locales, though some translations are marked as 'TODO' and will require future updates.
  • Comprehensive Testing: Dedicated test cases have been added to ensure the correct functionality and detection of undocumented local functions by the new diagnostic.
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Code Review

This pull request introduces a new diagnostic for unannotated local functions, which is a great addition for improving code documentation. The implementation and tests look solid. I've found a couple of minor copy-paste errors in the documentation and locale files that should be addressed. Overall, this is a good contribution.

Comment on lines 129 to 140
DIAG_MISSING_LOCAL_DOC_COMMENT = -- TODO: need translate!
'Missing comment for local function `{}`.'
DIAG_MISSING_LOCAL_DOC_PARAM = -- TODO: need translate!
'Missing @param annotation for parameter `{}` in local function `{}`.'
DIAG_MISSING_LOCAL_DOC_RETURN = -- TODO: need translate!
'Missing @return annotation at index `{}` in local function `{}`.'
DIAG_MISSING_LOCAL_DOC_COMMENT =
'Missing comment for local function `{}`.'
DIAG_MISSING_LOCAL_DOC_PARAM =
'Missing @param annotation for parameter `{}` in local function `{}`.'
DIAG_MISSING_LOCAL_DOC_RETURN =
'Missing @return annotation at index `{}` in local function `{}`.'

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high

These diagnostic message definitions are duplicated. The first block also contains TODO: need translate! comments, which are not necessary for the en-us locale. This can be cleaned up by removing the duplicate block and the TODO comments.

DIAG_MISSING_LOCAL_DOC_COMMENT        =
'Missing comment for local function `{}`.'
DIAG_MISSING_LOCAL_DOC_PARAM          =
'Missing @param annotation for parameter `{}` in local function `{}`.'
DIAG_MISSING_LOCAL_DOC_RETURN         =
'Missing @return annotation at index `{}` in local function `{}`.'

/*
Missing annotations for locals! Local functions must have a comment and annotations for all parameters and return values.
*/
"missing-local-export-doc": "None",

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medium

There seems to be a copy-paste error here. The diagnostic name should be missing-local-doc to match the comment above, but it's written as missing-local-export-doc. This also creates a duplicate key in this configuration block, as missing-local-export-doc is defined again on line 882.

Suggested change
"missing-local-export-doc": "None",
"missing-local-doc": "None",

@NathanSnail
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I'm not sure how to run build-doc.lua, so that needs doing.

@NathanSnail NathanSnail marked this pull request as draft December 2, 2025 12:22
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