diff options
Diffstat (limited to 'compiler/src/dotty/tools/dotc/core/Types.scala')
| -rw-r--r-- | compiler/src/dotty/tools/dotc/core/Types.scala | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/compiler/src/dotty/tools/dotc/core/Types.scala b/compiler/src/dotty/tools/dotc/core/Types.scala index ae9122853..1174e863e 100644 --- a/compiler/src/dotty/tools/dotc/core/Types.scala +++ b/compiler/src/dotty/tools/dotc/core/Types.scala @@ -2603,7 +2603,7 @@ object Types { case t => mapOver(t) } } - PolyType(paramNames ++ that.paramNames)( + PolyType(paramNames ++ that.paramNames, variances ++ that.variances)( x => this.paramBounds.mapConserve(_.subst(this, x).bounds) ++ that.paramBounds.mapConserve(shift(_).subst(that, x).bounds), x => shift(that.resultType).subst(that, x).subst(this, x)) @@ -2634,11 +2634,10 @@ object Types { } object PolyType { - def apply(paramNames: List[TypeName], variances: List[Int] = Nil)( + def apply(paramNames: List[TypeName], variances: List[Int])( paramBoundsExp: PolyType => List[TypeBounds], resultTypeExp: PolyType => Type)(implicit ctx: Context): PolyType = { - val vs = if (variances.isEmpty) paramNames.map(alwaysZero) else variances - unique(new PolyType(paramNames, vs)(paramBoundsExp, resultTypeExp)) + unique(new PolyType(paramNames, variances)(paramBoundsExp, resultTypeExp)) } def unapply(tl: PolyType): Some[(List[LambdaParam], Type)] = |