diff options
Diffstat (limited to 'src/dotty/tools/dotc/typer/TypeAssigner.scala')
| -rw-r--r-- | src/dotty/tools/dotc/typer/TypeAssigner.scala | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/src/dotty/tools/dotc/typer/TypeAssigner.scala b/src/dotty/tools/dotc/typer/TypeAssigner.scala index 995fa43ca..0344ae6c6 100644 --- a/src/dotty/tools/dotc/typer/TypeAssigner.scala +++ b/src/dotty/tools/dotc/typer/TypeAssigner.scala @@ -96,14 +96,17 @@ trait TypeAssigner { } case tp @ AppliedType(tycon, args) if toAvoid(tycon) => val base = apply(tycon) - val args = tp.baseArgInfos(base.typeSymbol) - if (base.typeParams.length == args.length) base.appliedTo(args) else base - case tp @ RefinedType(parent, name) if variance > 0 => + var args = tp.baseArgInfos(base.typeSymbol) + if (base.typeParams.length != args.length) + args = base.typeParams.map(_.paramBounds) + base.appliedTo(args) + case tp @ RefinedType(parent, name, rinfo) if variance > 0 => val parent1 = apply(tp.parent) - val refinedInfo1 = apply(tp.refinedInfo) + val refinedInfo1 = apply(rinfo) if (toAvoid(refinedInfo1)) { typr.println(s"dropping refinement from $tp") - parent1 + if (name.isTypeName) tp.derivedRefinedType(parent1, name, TypeBounds.empty) + else parent1 } else { tp.derivedRefinedType(parent1, name, refinedInfo1) } @@ -144,7 +147,7 @@ trait TypeAssigner { * which are accessible. * * Also performs the following normalizations on the type `tpe`. - * (1) parameter accessors are alwys dereferenced. + * (1) parameter accessors are always dereferenced. * (2) if the owner of the denotation is a package object, it is assured * that the package object shows up as the prefix. */ @@ -409,11 +412,11 @@ trait TypeAssigner { def refineNamed(tycon: Type, arg: Tree) = arg match { case ast.Trees.NamedArg(name, argtpt) => // Dotty deviation: importing ast.Trees._ and matching on NamedArg gives a cyclic ref error - val tparam = tparams.find(_.name == name) match { + val tparam = tparams.find(_.paramName == name) match { case Some(tparam) => tparam case none => ntparams.find(_.name == name).getOrElse(NoSymbol) } - if (tparam.exists) RefinedType(tycon, name, argtpt.tpe.toBounds(tparam)) + if (tparam.isTypeParam) RefinedType(tycon, name, argtpt.tpe.toBounds(tparam)) else errorType(i"$tycon does not have a parameter or abstract type member named $name", arg.pos) case _ => errorType(s"named and positional type arguments may not be mixed", arg.pos) @@ -425,6 +428,9 @@ trait TypeAssigner { tree.withType(ownType) } + def assignType(tree: untpd.TypeLambdaTree, tparamDefs: List[TypeDef], body: Tree)(implicit ctx: Context) = + tree.withType(TypeLambda.fromSymbols(tparamDefs.map(_.symbol), body.tpe)) + def assignType(tree: untpd.ByNameTypeTree, result: Tree)(implicit ctx: Context) = tree.withType(ExprType(result.tpe)) |