[swift-users] returning an array of Protocol-conforming objects from a function

Ryan Walklin ryan at testtoast.com
Mon Jan 25 21:36:39 CST 2016

Hi All,

I have a function which returns a closure, which then returns an array of objects conforming to a protocol. 


protocol MyProtocol {}

extension Float: MyProtocol {}
extension OtherType: MyProtocol {}

When I try to return an array of Floats, I get the error “Cannot convert value of type '[Float]' to closure result type ‘[MyProtocol]”.

Other struct-based types work fine.

Is this not possible with standard library types?


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