[embedded] Adjust docs to clarify support for class-bound existentials #76768
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kubamracek
requested review from
MaxDesiatov,
phausler,
rauhul,
zoecarver and
eeckstein
rauhul
approved these changes
Sep 29, 2024
|
@swift-ci please smoke test |
slavapestov
reviewed
Sep 30, 2024
| @@ -183,7 +183,7 @@ Embedded Swift is a subset of the Swift language, and some features are not avai | |||
| Features that are not available: | |||
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| - **Not available**: Runtime reflection (`Mirror` APIs). | |||
| - **Not available**: Values of protocol types ("existentials"), e.g. `let a: Hashable = ...`, are not allowed. `Any` and `AnyObject` are also not allowed. | |||
| - **Not available**: Values of protocol types ("existentials"), unless the protocol is restricted to be class-bound (derived from AnyObject). E.g. `let a: Hashable = ...` is not allowed. `Any` is also not allowed. | |||
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Is the restriction really on the protocol, or just the existential type? That is, do we allow any Hashable & AnyObject, any Hashable & SomeClassBoundProtocol, or any Hashable & SomeClass?
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It is really on the protocol - at least currently.
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