Using Swift sets with generics

Question

Created Feb ’16

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I get compiler errors when I try to define a set of type:

Set<T: Hashable>

The error I get is ('Expected > to complete generic argument list')

I was under the impression that all a set requires of a member is conformance to Hashable. Is there a way to define a generic set? I'm trying to define a method that takes in a set of an arbitrary type T that conforms to hashable, and returns a transformed set of the same type T.

Answered by Jessy in 113398022

What does that mean to you, "generic set"?

struct Struct<Hashable: Swift.Hashable> {
    let set: Set<Hashable>
}

protocol Protocol {
   typealias Hashable: Swift.Hashable
   var set: Set<Hashable> {get}
}

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Answer 1

Jessy OP

Feb ’16

Accepted Answer

What does that mean to you, "generic set"?

struct Struct<Hashable: Swift.Hashable> {
    let set: Set<Hashable>
}

protocol Protocol {
   typealias Hashable: Swift.Hashable
   var set: Set<Hashable> {get}
}

1