[swift-evolution] [Pitch] Extend Any.Type to allow construction of bound generic types
howard.lovatt at gmail.com
Sun Apr 17 17:50:58 CDT 2016
I would also find this useful, should this be part of completing generics?
On Monday, 18 April 2016, Joanna Carter via swift-evolution <
swift-evolution at swift.org> wrote:
> I often find myself needing to construct an instance of a bound generic
> type at runtime, in much the same manner as I would a "standard" type.
> As for a standard type…
> let aType = Int.Type
> let anInt = aType.init(0)
> I also want to be able to use the same mechanism for a generic type…
> struct MyStruct<T: Equatable /*, etc */>
> var value: T?
> let paramType = // type from streaming or reflection compliant with
> let structType = MyStruct<paramType>.self
> let f = structType.init()
> At present, the following compiler error is raised…
> 'paramType' is not a type
> I am the only one to require this behaviour? If not, do we want a
> proposal? If so, could you let me know your views on its worthiness?
> Joanna Carter
> Carter Consulting
> swift-evolution mailing list
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