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"macro not expanded" error with argument containing implicit view, inferred Nothing #7987

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scabug opened this issue Nov 21, 2013 · 2 comments
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@scabug
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@scabug scabug commented Nov 21, 2013

scala> import scala.language.experimental._
import scala.language.experimental._

scala> object Macro {
     |   def apply[A](a: A): A = macro impl[A]
     |   def impl[A](c: reflect.macros.Context)(a: c.Expr[A]): c.Expr[A] = a
     | }
defined module Macro

scala>

scala> class C[T] {
     |   def foo = 0
     | }
defined class C

scala> implicit def AnyToC[T](a: Any): C[T] = new C[T]
warning: there were 1 feature warning(s); re-run with -feature for details
AnyToC: [T](a: Any)C[T]

scala> Macro {
     |   "".foo
     |    ()
     | }
<console>:17: error: macro has not been expanded
              Macro {
              ^
@scabug
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@scabug scabug commented Nov 21, 2013

Imported From: https://issues.scala-lang.org/browse/SI-7987?orig=1
Reporter: @retronym
Affected Versions: 2.10.3

@scabug
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@scabug scabug commented Nov 21, 2013

@retronym said:
Already fixed in 2.11.0-M7. Test case and explanation: scala/scala#3172

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