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Fix #9465: Add missing recursion #9508

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Merged
merged 1 commit into from
Aug 6, 2020
Merged

Fix #9465: Add missing recursion #9508

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2 changes: 1 addition & 1 deletion compiler/src/dotty/tools/dotc/typer/QuotesAndSplices.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -401,7 +401,7 @@ trait QuotesAndSplices {
override def apply(tp: Type): Type = tp match {
case tp: TypeRef =>
val tp1 = if (tp.typeSymbol.isTypeSplice) tp.dealias else tp
typeBindings.get(tp1.typeSymbol).fold(tp)(_.symbol.typeRef)
mapOver(typeBindings.get(tp1.typeSymbol).fold(tp)(_.symbol.typeRef))
case tp => mapOver(tp)
}
}
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12 changes: 12 additions & 0 deletions tests/pos-macros/i9465.scala
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Original file line number Diff line number Diff line change
@@ -0,0 +1,12 @@
import scala.quoted._

trait Coll[A] {
type C[X] // must be abstract
def map[B]: C[Any] // needs both the type param and a return type that refers to C
}

object QuoteTest {
def compile(expr: Expr[Any])(using QuoteContext): Expr[Any] = expr match {
case '{ (??? : Coll[$y]).map[$b] } => ???
}
}