Heal pattern-bound type by gathering constraints #15095
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abgruszecki
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May 17, 2022
compiler/src/dotty/tools/dotc/core/PatternTypeConstrainer.scala
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abgruszecki
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May 17, 2022
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If we want to improve this special case, then actually we don't need to care about variance, we can infer that the pattern-bound abstract type and the type argument in scrutinee type are equal. This is what would happen if we were inferring a type argument to an unapply method.
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