Add type type TypeClass = { type Self <: AnyKind } to Predef
#20393
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bishabosha
reviewed
May 13, 2024
| @@ -542,7 +542,7 @@ class Definitions { | |||
| // but does not define it as an explicit class. | |||
| val cls = enterCompleteClassSymbol( | |||
| ScalaPackageClass, tpnme.Singleton, PureInterfaceCreationFlags | Final | Erased, | |||
| List(AnyType)) | |||
| List(ObjectType)) | |||
bishabosha
reviewed
May 13, 2024
| * extension (self: Self) def show: String | ||
| * }}} | ||
| */ | ||
| @experimental type TypeClass = { type Self <: AnyKind } |
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Suggested change
| @experimental type TypeClass = { type Self <: AnyKind } | |
| @experimental type TypeClass = Any { type Self <: AnyKind } |
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Allowed declaring
extends TypeClassinstead of adding a membertype Self, and can be used as an upper bound for something with aSelftype.It's also a good place to put documentation, which I have merely started but should probably be extended, feel free to push modifications.
It is declared a type alias rather than a trait to allow, but not require, using it as a parent.