Extension type instance variables in default constructors are marked as missing documentation

[albertms10]

Having extension type declarations as such:

/// Documented extension type.
extension type const Frequency._(num hertz) implements num { 
  // ...
}

leads to these warnings in the Provide documentation section from Pub.dev analysis (see music_notes score example):

---

After looking into the code, it seems instance variables in extension type default constructors—which ATM cannot be documented at all—are not excluded from the list of symbols missing documentation.

pana/lib/src/dartdoc/index_to_pubdata.dart

Lines 44 to 55 in 3314a87

	final symbolsMissingDocumentation = apiElements
	// filter out names that have documentation
	.whereNot((e) => symbolsWithDocumentation.contains(e.qualifiedName))
	// Some symbols are present here without being in the code. E.g. an enum may
	// omit the default constructor, and we would report it as undocumented here.
	// Filtering out typically hidden constructors (e.g. `<A>.<A>`) if the parent
	// type has a documentation.
	.whereNot((e) =>
	e.parent != null &&
	e.parent!.split('.').last == e.name &&
	symbolsWithDocumentation.contains(e.parent!))

[isoos]

Thanks for reporting this, we should add the exclusions!

[isoos]

I'm unsure if this is something dartdoc could fix, so I've filed dart-lang/dartdoc#3830.

[sigurdm]

Closing in favor of dart-lang/dartdoc#3830