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Re: Swift function overloading - invoking func with specific parameter (in place of Any parameter) on passing Any object
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Re: Swift function overloading - invoking func with specific parameter (in place of Any parameter) on passing Any object


  • Subject: Re: Swift function overloading - invoking func with specific parameter (in place of Any parameter) on passing Any object
  • From: Devarshi Kulshreshtha via Cocoa-dev <email@hidden>
  • Date: Mon, 28 Oct 2019 10:33:05 +0530

So the other thing which came to my mind was similar to what you have
suggested:

a. Declare Displayable protocol with func display()
b. Let each Model implement this protocol
c. Within forEach on children I can just bind and typecast to the protocol
and invoke display method on it

However this looks like an ugly solution to me as Model is now serving 2
responsibilities - i. Handle/ Store data, ii. Handle how the data is
displayed. The 2nd responsibility looks to me like more reasonable for a
controller or presenter class to implement rather than the model class,
hence I want to avoid that path.

On Sun, Oct 27, 2019 at 7:55 PM Andrew Thompson <email@hidden> wrote:

>
> > Is there any other elegant way to achieve the desired behavior without
> > using `if-let + typecasting`?
>
>
> One way is to use classes instead on structs and define display as a
> method on those classes. I’m no Swift  expert but I expect you may find
> value in making display() into a protocol.
>
>
> Andrew
>
>
>

--
Thanks,

Devarshi
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  • Follow-Ups:
    • Re: Swift function overloading - invoking func with specific parameter (in place of Any parameter) on passing Any object
      • From: Andrew Thompson via Cocoa-dev <email@hidden>
References: 
 >Swift function overloading - invoking func with specific parameter (in place of Any parameter) on passing Any object (From: Devarshi Kulshreshtha via Cocoa-dev <email@hidden>)
 >Re: Swift function overloading - invoking func with specific parameter (in place of Any parameter) on passing Any object (From: Andrew Thompson via Cocoa-dev <email@hidden>)

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