diff options
Diffstat (limited to 'src/dotty/tools/dotc/ast/Desugar.scala')
| -rw-r--r-- | src/dotty/tools/dotc/ast/Desugar.scala | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/dotty/tools/dotc/ast/Desugar.scala b/src/dotty/tools/dotc/ast/Desugar.scala index 05f652a39..32ada504d 100644 --- a/src/dotty/tools/dotc/ast/Desugar.scala +++ b/src/dotty/tools/dotc/ast/Desugar.scala @@ -290,8 +290,12 @@ object desugar { val caseParams = constrVparamss.head.toArray val productElemMeths = for (i <- 0 until arity) yield syntheticProperty(nme.selectorName(i), Select(This(EmptyTypeName), caseParams(i).name)) + val hasRepeatedParam = constrVparamss.exists(_.exists { + case ValDef(_, PostfixOp(_, nme.raw.STAR), _) => true + case _ => false + }) val copyMeths = - if (mods is Abstract) Nil + if (mods.is(Abstract) || hasRepeatedParam) Nil // cannot have default arguments for repeated parameters, hence copy method is not issued else { def copyDefault(vparam: ValDef) = makeAnnotated(defn.UncheckedVarianceAnnot, refOfDef(vparam)) |