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Detect case where two alternatives are the same after widening ExprTypes #18787

Merged
merged 4 commits into from
Oct 30, 2023
Merged

Detect case where two alternatives are the same after widening ExprTypes #18787

merged 4 commits into from
Oct 30, 2023

Commits on Oct 29, 2023

  1. Detect case where two alternatives are the same after widening ExprTypes 

    In implicit or extension method search we might get two alternatives that are different
but that point to the same singleton type after widening ExprTypes. In that case we can
arbitrarily pick one of them instead of declaring an ambiguity.

Fixes scala#18768
    @odersky
    odersky committed Oct 29, 2023
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  2. Fix comparison to be in frozen constraint

    @odersky
    odersky committed Oct 29, 2023
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Commits on Oct 30, 2023

  1. Add original test

    @odersky
    odersky committed Oct 30, 2023
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  2. Update compiler/src/dotty/tools/dotc/typer/Applications.scala

    @odersky
    odersky committed Oct 30, 2023
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