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Scaladoc: Handle types that were throwing match errors #12553

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May 27, 2021
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Scaladoc: Handle types that were throwing match errors #12553

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14 changes: 14 additions & 0 deletions scaladoc/src/dotty/tools/scaladoc/tasty/TypesSupport.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -272,6 +272,20 @@ trait TypesSupport:

case RecursiveType(tp) => inner(tp)

case MatchCase(pattern, rhs) =>
texts("case ") ++ inner(pattern) ++ texts(" => ") ++ inner(rhs)

case t: dotty.tools.dotc.core.Types.LazyRef => try {
inner(t.ref(using ctx.compilerContext).asInstanceOf[TypeRepr])
} catch {
case e: AssertionError => texts("LazyRef(...)")
}

case tpe =>
val msg = s"Encountered unsupported type. Report this problem to https://github.com/lampepfl/dotty/.\n" +
s"${tpe.show(using Printer.TypeReprStructure)}"
throw MatchError(msg)

private def typeBound(using Quotes)(t: reflect.TypeRepr, low: Boolean) =
import reflect._
val ignore = if (low) t.typeSymbol == defn.NothingClass else t.typeSymbol == defn.AnyClass
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