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Fix #7863: Handle type lambda trees in inlined code #7922

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Merged
merged 1 commit into from
Jan 8, 2020
+8 −1
Merged

Fix #7863: Handle type lambda trees in inlined code #7922

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4 changes: 3 additions & 1 deletion compiler/src/dotty/tools/dotc/typer/Inliner.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -439,7 +439,9 @@ class Inliner(call: tpd.Tree, rhsToInline: tpd.Tree)(implicit ctx: Context) {
paramProxy(param.typeRef) = adaptToPrefix(param.typeRef)
case tpe: NamedType
if tpe.symbol.is(Param) && tpe.symbol.owner == inlinedMethod && !paramProxy.contains(tpe) =>
paramProxy(tpe) = paramBinding(tpe.name)
paramBinding.get(tpe.name) match
case Some(bound) => paramProxy(tpe) = bound
case _ => // can happen for params bound by type-lambda trees.
case _ =>
}

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5 changes: 5 additions & 0 deletions tests/pos/i7863.scala
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@@ -0,0 +1,5 @@
def f[F[_]] = ()

inline def g = f[[R] =>> Int => R]

val a = g