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LUB of Left(1) and Right(1) is Product with Serializable with scala.util.Either[Int,Int] because Either doesn't extend Product and Serializable itself #9173

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scabug opened this issue Feb 23, 2015 · 2 comments
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LUB of Left(1) and Right(1) is Product with Serializable with scala.util.Either[Int,Int] because Either doesn't extend Product and Serializable itself #9173

scabug opened this issue Feb 23, 2015 · 2 comments
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2.12.0-M1

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scabug commented Feb 23, 2015

This seems to be yet another case where where subtypes of a sealed supertype cause larger-than-necessary types.

I think analogous to the reasoning in #7402 and #7403, Either should extend Product and Serializable itself too.
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scabug commented Feb 23, 2015

Imported From: https://issues.scala-lang.org/browse/SI-9173?orig=1
Reporter: @soc
Affected Versions: 2.11.5
See #7402, #7403

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scabug commented Mar 26, 2015

@lrytz said:
fixed in scala/scala#4355, test case in scala/scala#4409

@scabug scabug closed this as completed Mar 26, 2015
@scabug scabug added this to the 2.12.0-M1 milestone Apr 7, 2017
@scabug scabug mentioned this issue Apr 7, 2017
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@S11001001 S11001001 mentioned this issue May 18, 2020
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