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Add test for StackOverflow question 68877939 #21775

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Oct 15, 2024
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Merged

Add test for StackOverflow question 68877939 #21775

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15 changes: 15 additions & 0 deletions tests/pos/so68877939.scala
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Original file line number Diff line number Diff line change
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abstract class Quantity[A <: Quantity[A]]
sealed trait UnitOfMeasure[A <: Quantity[A]]

class Time extends Quantity[Time]
object Minutes extends UnitOfMeasure[Time]

class PowerRamp extends Quantity[PowerRamp]
object KilowattsPerHour extends UnitOfMeasure[PowerRamp]

type Test[X <: UnitOfMeasure[?]] = X match
case UnitOfMeasure[t] => t

@main def main =
summon[Test[Minutes.type] =:= Time]
summon[Test[KilowattsPerHour.type] =:= PowerRamp]
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