Scaladoc: fails to generate doc for ScAS

[rjolly]

Compiler version

3.5.1

Minimized code

git clone https://github.com/rjolly/scas.git
cd scas
./mill -i -D dottyVersion=3.5.1 scas.docJar

Output

Problem parsing projects\scas\scas\src\scas\base\BigInteger.scala:[0..13..2002], documentation may not be generated.
[...]

Expectation

It would be good to at least uncomment e.printStackTrace() in dotty/scaladoc/src/dotty/tools/scaladoc/tasty/TastyParser.scala (and put it under a flag eventually), so as to know more about the problem.

[Gedochao]

I'd say we need a minimised example to work on this.

[rjolly]

trait Monoid[T]:
  extension (a: T)
    def \:[U](b: U) = ???

Problem parsing scas/src/Monoid.scala:<0..61>, documentation may not be generated.

[rjolly]

This one fails too:

trait C[T]
trait Equiv[T]:
  extension[U: C] (x: U)
    def ><[V](y: V) = ???

Problem parsing scas/src/Equiv.scala:[0..18..117], documentation may not be generated.

[rjolly]

I think these are the two sole problems. Other than that, my doc generation will be fine. What would be cool is if parsing problems did not propagate, that is, currently if one class has a problem then all its subclasses too, transitively. This makes it hard to point it.

[Gedochao]

Both minimized examples seem to generate scaladoc for 3.3.0 and then break for 3.3.1+.
The output for 3.3.0:

scala-cli doc repro.scala -S 3.3.0
# Following generated file paths might not be compatible with Jekyll:
# _empty_/Equiv
# _empty_/C
# If using GitHub Pages consider adding a ".nojekyll" file.
# Wrote Scaladoc to ./scala-doc

[rjolly]

org.scala-lang#scaladoc_3;3.3.1-RC1-bin-20230202-af95ceb-NIGHTLY : no error
org.scala-lang#scaladoc_3;3.3.1-RC1-bin-20230203-3ef1e73-NIGHTLY : error

in between : introduction of clause interleaving. Cc @Sporarum