[Questions][SE-143]Conditional conformances for protocols?

Development Compiler
1

Recently, we can use conditional conformances for struct/class.

extension Array: Equatable where Self.Element : Equatable { ... }

Could we use conditional conformances for protocols?
For example:

extension Collection : Equatable where Self.Element : Equatable { ... }

Thanks!
Jiannan

2

See Conditional Conformances via Protocol Extensions <https://github.com/apple/swift/blob/master/docs/GenericsManifesto.md#conditional-conformances-via-protocol-extensions&gt;\.

ยทยทยท

On Dec 6, 2017, at 11:05 AM, Cao, Jiannan via swift-dev <swift-dev@swift.org> wrote:

Recently, we can use conditional conformances for struct/class.

extension Array: Equatable where Self.Element : Equatable { ... }

Could we use conditional conformances for protocols?
For example:

extension Collection : Equatable where Self.Element : Equatable { ... }

Thanks!
Jiannan

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