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fix: replace the XML generator with a reflection-based one#1151

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fix: replace the XML generator with a reflection-based one#1151
gennaroprota wants to merge 3 commits intocppalliance:developfrom
gennaroprota:develop

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@gennaroprota
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@alandefreitas: Please let me know what you think and... if I have commented it too much :-).

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github-actions bot commented Jan 21, 2026

🚧 Danger.js checks for MrDocs are experimental; expect some rough edges while we tune the rules.

ℹ️ Info

Note

Commit b27ce5c (fix: replace the XML generator with a reflection-based one) touches 2083 source lines (non-test). Large change; add reviewer context if needed.

✨ Highlights

  • 🧪 Existing golden tests changed (behavior likely shifted)

🧾 Changes by Scope

Scope Lines Δ Lines + Lines - Files Δ Files + Files ~ Files ↔ Files -
🥇 Golden Tests 45951 36561 9390 243 12 231 - -
🛠️ Source 2104 856 1248 7 1 6 - -
🏗️ Build / Toolchain 1092 757 335 1 - 1 - -
📦 Other 6 6 - 1 - 1 - -
Total 49153 38180 10973 252 13 239 - -

Legend: Files + (added), Files ~ (modified), Files ↔ (renamed), Files - (removed)

🔝 Top Files

  • test-files/golden-tests/javadoc/ref/ref.xml (Golden Tests): 2765 lines Δ (+2182 / -583)
  • test-files/golden-tests/config/auto-function-metadata/returns-from-special.xml (Golden Tests): 2613 lines Δ (+1936 / -677)
  • test-files/golden-tests/config/inherit-base-members/copy-dependencies.xml (Golden Tests): 2390 lines Δ (+1754 / -636)

Generated by 🚫 dangerJS against e4c2097

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An automated preview of the documentation is available at https://1151.mrdocs.prtest2.cppalliance.org/index.html

If more commits are pushed to the pull request, the docs will rebuild at the same URL.

2026-01-21 17:01:42 UTC

@alandefreitas
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I think we should be removing way more code than including for this PR to make sense. The test outputs haven't even changed. This should be a bug fix, not a refactor. The biggest problem with this generator is that it's not in sync with the metadata. And the reason this generator is out of sync is that we didn't have reflection, and manually keeping it in sync was too expensive and fragile. So what we want to do is let reflection handle the whole thing, and the whole generator will have only one or two functions that recursively iterate over everything to generate the metadata. 🥳

This means the XML outputs will change completely, as they now reflect everything in the metadata, which is what this generator was meant for. Our intention is not to recreate the broken version, but to recreate it with reflection. If we don't fix it, reflection would mean more code rather than less, as we now have to force reflection to recreate the errors we had without it (which is even harder than just keeping the original errors). And that's going to be extra code just to maintain it broken.

I think another issue here is that we should probably address the other issue first, where we should remove those small workarounds from reflection to make it reflect into different key names. Only canonical names should be used. All generators should have access to the same fields with the same names. Making this happen is basically just the finalization of the previous issue we already merged. And maybe the @meta field is required to make that happen, since ambiguity might arise. Only after establishing the canonical field names can we use them to generate XML. 😅

@alandefreitas
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What happened to this PR? I thought it would become more active after #1153 🚀

@gennaroprota
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gennaroprota commented Jan 29, 2026

I removed the commit before pulling, after merging #1153, and GitHub closed it. I shouldn't have used the develop branch.

@alandefreitas
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Oh 😅

@gennaroprota gennaroprota reopened this Feb 2, 2026
@gennaroprota gennaroprota changed the title refactor: leverage reflection in the XML generator fix: leverage reflection in the XML generator Feb 2, 2026
@gennaroprota gennaroprota marked this pull request as draft February 2, 2026 17:57
@gennaroprota gennaroprota changed the title fix: leverage reflection in the XML generator fix: replace the XML generator with a reflection-based one Feb 2, 2026
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codecov bot commented Feb 18, 2026

Codecov Report

❌ Patch coverage is 89.91597% with 12 lines in your changes missing coverage. Please review.
✅ Project coverage is 76.70%. Comparing base (58bf524) to head (e4c2097).
⚠️ Report is 2 commits behind head on develop.

Files with missing lines Patch % Lines
src/lib/Gen/xml/XMLWriter.cpp 91.56% 0 Missing and 7 partials ⚠️
src/lib/Support/Reflection/ReadableTypeName.hpp 75.00% 2 Missing and 2 partials ⚠️
src/lib/AST/ExtractDocComment.cpp 93.75% 0 Missing and 1 partial ⚠️

❌ Your patch check has failed because the patch coverage (89.91%) is below the target coverage (90.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files
@@             Coverage Diff             @@
##           develop    #1151      +/-   ##
===========================================
- Coverage    86.49%   76.70%   -9.79%     
===========================================
  Files          326      311      -15     
  Lines        23840    29110    +5270     
  Branches         0     5783    +5783     
===========================================
+ Hits         20620    22329    +1709     
- Misses        3220     4554    +1334     
- Partials         0     2227    +2227     

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@gennaroprota gennaroprota force-pushed the develop branch 3 times, most recently from 0186462 to 2d636aa Compare February 19, 2026 17:27
This fixes the XML generator, which was out of sync with our metadata,
by replacing it with a reflection-based implementation. The XML output
structure changes completely, but contains equivalent information.
Reason: See the new code comment in codecov.yml.
@gennaroprota gennaroprota force-pushed the develop branch 3 times, most recently from e7ce8e5 to 3ab54ea Compare February 20, 2026 17:14
This adds support for all five admonition types, with corresponding
tests, plus tests for type-based friend declarations and pointers to
members.
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3 participants