fix: re export ts enum type

[tmg0]

🔗 Linked issue

Resolves #318

❓ Type of change

• 📖 Documentation (updates to the documentation, readme, or JSdoc annotations)
• 🐞 Bug fix (a non-breaking change that fixes an issue)
• 👌 Enhancement (improving an existing functionality like performance)
• ✨ New feature (a non-breaking change that adds functionality)
• 🧹 Chore (updates to the build process or auxiliary tools and libraries)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

Added the declaration field in Import to distinguish between dts and enum When transfer exports to imports in toImport function findExports will tag enum as declaration, after dedupe imports, enum can only be used as a value.

Maybe add a type in mlly ESMExport is a better way? Or edit the return value after findExports instead of adding a field to the Export type?

Fix typescript enum auto import error, enum should be import as both value and type.

Resolves #318

📝 Checklist

• I have linked an issue or discussion.
• I have updated the documentation accordingly.

[antfu]

Yeah I think it makes sense to have mlly support that information later.

/cc @pi0 does the interface fields looks good to you?

[pi0]

Generally yes! I would probably name it declarationType in interface btw or something that hints it is only a type indicator. And PR is more than welcome upstream I can release asap 👍🏼

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (da1733b) 98.73% compared to head (f154082) 98.74%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #325   +/-   ##
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  Coverage   98.73%   98.74%           
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  Files          14       14           
  Lines        1822     1834   +12     
  Branches      371      374    +3     
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+ Hits         1799     1811   +12     
  Misses         23       23           

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