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Add constraint to extension methods #1

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propensive opened this issue Dec 20, 2023 · 1 comment
Open

Add constraint to extension methods #1

propensive opened this issue Dec 20, 2023 · 1 comment
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code quality Concerns the standard of code rather than functionality core Describes core required functionality question Looking for an answer

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The extension method might benefit from a signature like,

extension[V, W](value: V)(using V <:< Optional[W], Unset.type <:< V)

in order to prevent it being applied to values which are not optional.
@propensive propensive self-assigned this Dec 20, 2023
@propensive propensive added question Looking for an answer code quality Concerns the standard of code rather than functionality core Describes core required functionality labels Dec 20, 2023
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A better type constraint may be NotGiven[Unset.type <:< V].

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