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implicit AnyVal class causes the compiler to crash with an exception #7241

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scabug opened this issue Mar 11, 2013 · 2 comments
Closed

implicit AnyVal class causes the compiler to crash with an exception #7241

scabug opened this issue Mar 11, 2013 · 2 comments
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@retronym
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compiler crash duplicate
Milestone
2.10.1

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@scabug
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scabug commented Mar 11, 2013

The following code fails to compile:

object Test {
  implicit class As[X](val inside: X) extends AnyVal {
    def as[Y >: X]: Y = inside;
  }
}

The message says:

Exception in thread "main" scala.reflect.internal.Types$TypeError:
    type mismatch;
 found   : X
 required: Y

The compiler output is attached.

If I remove extends AnyVal it compiles fine.
@scabug
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scabug commented Mar 11, 2013

Imported From: https://issues.scala-lang.org/browse/SI-7241?orig=1
Reporter: Petr Pudlak (petrp)
Affected Versions: 2.10.0
Attachments:

  • log (created on Mar 11, 2013 12:56:49 PM UTC, 19051 bytes)

@scabug
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scabug commented Mar 11, 2013

@retronym said:
Already fixed in 2.10.1

@scabug scabug closed this as completed Mar 11, 2013
@scabug scabug added this to the 2.10.1 milestone Apr 7, 2017
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