diff options
Diffstat (limited to 'src/dotty/tools/dotc/core/TypeApplications.scala')
| -rw-r--r-- | src/dotty/tools/dotc/core/TypeApplications.scala | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/src/dotty/tools/dotc/core/TypeApplications.scala b/src/dotty/tools/dotc/core/TypeApplications.scala index 9cd635cd9..4b251f183 100644 --- a/src/dotty/tools/dotc/core/TypeApplications.scala +++ b/src/dotty/tools/dotc/core/TypeApplications.scala @@ -39,6 +39,8 @@ import TypeApplications._ /** A decorator that provides methods for modeling type application */ class TypeApplications(val self: Type) extends AnyVal { + def canHaveTypeParams(implicit ctx: Context) = !ctx.erasedTypes || self.isRef(defn.ArrayClass) + /** The type parameters of this type are: * For a ClassInfo type, the type parameters of its class. * For a typeref referring to a class, the type parameters of the class. @@ -128,7 +130,7 @@ class TypeApplications(val self: Type) extends AnyVal { defn.hkTrait(args map alwaysZero).typeParams } - if (args.isEmpty) self + if (args.isEmpty || !canHaveTypeParams) self else self match { case tp: TypeRef => val tsym = tp.symbol @@ -228,8 +230,11 @@ class TypeApplications(val self: Type) extends AnyVal { * `from` and `to` must be static classes, both with one type parameter, and the same variance. */ def translateParameterized(from: ClassSymbol, to: ClassSymbol)(implicit ctx: Context): Type = - if (self derivesFrom from) - RefinedType(to.typeRef, to.typeParams.head.name, self.member(from.typeParams.head.name).info) + if (self.derivesFrom(from)) + if (canHaveTypeParams) + RefinedType(to.typeRef, to.typeParams.head.name, self.member(from.typeParams.head.name).info) + else + to.typeRef else self /** If this is an encoding of a (partially) applied type, return its arguments, |