[swift-users] Filling two type parameters with the same type

[Zhao Xin]

Please try this:

struct DistortedNoise<Source> where Source:Noise {

    typealias Displacement = Source



    let source:Source

    let displacement:Displacement



    init(source:Source, displacement:Displacement)

    {

        self.source       = source

        self.displacement = displacement

    }



    init(source:Source)

    {

        self.source       = source

        self.displacement = source

    }

}


Zhao Xin

On Sun, Jul 9, 2017 at 12:21 PM, somu subscribe via swift-users <
swift-users at swift.org> wrote:

> Hi Taylor,
>
> If both Source and Displacement are going to be Noise, you could use just
> one placeholder type.
>
> class Noise {}
>
> struct DistortedNoise<Item> where Item:Noise
> {
>     let source:Item,
>     displacement:Item
>
>
>     init(source:Item, displacement:Item)
>     {
>         self.source       = source
>         self.displacement = displacement
>     }
>
>
>     init(source:Item)
>     {
>         self.source       = source
>         self.displacement = source
>     }
> }
>
> Regards,
> Muthu
>
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> swift-users at swift.org
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>
>
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