feat: add RNTuple with inherited structs

[mrzimu]

Hi,
As requested by @ariostas, I have added a file to test the reading of RNTuples containing inherited structs, for Uproot's PR scikit-hep/uproot5#1589.

Since writing a derived class requires the dictionary of not only itself but also all its base classes, I added a small CMake project (instead of a simple ROOT script) to properly handle the dictionary generation and avoid cluttering the directory.

Please let me know if anything needs improvement :)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 72.51%. Comparing base (b5524d4) to head (012e7d6).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #216   +/-   ##
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  Coverage   72.51%   72.51%           
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  Files           4        4           
  Lines         131      131           
=======================================
  Hits           95       95           
  Misses         36       36           

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[ariostas]

Thank you, @mrzimu! To keep it consistent with the rest of the RNTuples here, let's name it something like class_inheritance_rntuple_v1-0-1-0.root.

Also, I'm wondering if there's some way to keep it all in a single file. The dictionary generation can't be done within the same file?

[mrzimu]

Thank you, @mrzimu! To keep it consistent with the rest of the RNTuples here, let's name it something like class_inheritance_rntuple_v1-0-1-0.root.

Also, I'm wondering if there's some way to keep it all in a single file. The dictionary generation can't be done within the same file?

I will name it as class_inheritance_rntuple_v1-0-1-0.root.

I also tend to keep it all in a single file, but I couldn't find a way to generate the dictionary properly now. Let me look into it.

[ariostas]

Thanks @mrzimu! Last thing, could you rename the actual root file?

[mrzimu]

Thanks @mrzimu! Last thing, could you rename the actual root file?

I have renamed it 😄

[mrzimu]

Thanks @mrzimu! Last thing, could you rename the actual root file?

I have renamed it 😄

Oh sorry, I forgot that generated file...

[ariostas]

Maybe it was only renamed locally, and you forgot to push it. But I went ahead and renamed it, so no worries. Thanks again!

(I'll do a couple checks before merging)

[ariostas]

@all-contributors please add @mrzimu for data

[allcontributors]

@ariostas

I've put up a pull request to add @mrzimu! 🎉