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Fix #3553: Wrong generic sig. with singleton types #3563

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Merged
merged 1 commit into from
Nov 27, 2017
Merged

Fix #3553: Wrong generic sig. with singleton types #3563

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2 changes: 1 addition & 1 deletion compiler/src/dotty/tools/dotc/transform/GenericSignatures.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -56,7 +56,7 @@ object GenericSignatures {
ps.foreach(boxedSig)
}

def boxedSig(tp: Type): Unit = jsig(tp, primitiveOK = false)
def boxedSig(tp: Type): Unit = jsig(tp.widenDealias, primitiveOK = false)

def boundsSig(bounds: List[Type]): Unit = {
val (isTrait, isClass) = bounds partition (_.typeSymbol.is(Trait))
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8 changes: 8 additions & 0 deletions tests/pos/i3553.scala
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Original file line number Diff line number Diff line change
@@ -0,0 +1,8 @@
class Foo[T <: List[1]](param: List[1]) {
def foo(in: List[1]): List[true] = Nil
def bar[U >: List[1]](in: List['z']): List[1.0e9] = Nil
}
class Bar[T <: 1](param: 1) {
def foo(in: 1): true = true
def bar[U >: 1](in: 'z'): 1.0e9 = 1.0e9
}