# Optimise interface demo

**URL:** <https://forums.fsharp.org/t/optimise-interface-demo/3926>\
**Category:** General\
**Created:** [November 23, 2024, 3:27pm UTC](https://forums.fsharp.org/t/optimise-interface-demo/3926 "2024-11-23T15:27:23Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![devosalain](https://yyz2.discourse-cdn.com/flex030/user_avatar/forums.fsharp.org/devosalain/32/1186_2.png) [@devosalain](https://forums.fsharp.org/u/devosalain)\
**Post date:** [November 23, 2024, 3:27pm UTC](https://forums.fsharp.org/t/optimise-interface-demo/3926/1 "2024-11-23T15:27:23Z")

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Can the program below be optimised.  
-For speed. (eg inline , how)  
-Less boilerplate (eg wrapping functions).  
Or is it ok as it is?

```auto

open System
open Xunit

type IAnimal =
    abstract member Name: string
    abstract member Talk: string -> unit

type Chicken(name: string) =
    //i:instance
    member _.iName = name

    member _.iTalk(msg: string) =
        printfn $"My name is: {name}"
        printfn $"Cluck: {msg}"

    interface IAnimal with
        member this.Name = this.iName
        member this.Talk(msg: string) = this.iTalk (msg)

let animalFunction (a: IAnimal) : unit =
    printfn ("I am the animalFunction")
    printfn $"In the AnimalFunction i am called: {a.Name}"
    a.Talk("Koekoek from animalFunction")

[<EntryPoint>]
let main (args: string array) : int =
    printfn "Hello World \n"
    let c = Chicken("Clucky")
    c.iTalk ("Koekoek")
    c |> animalFunction
    0

```

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<div class="post-metadata">

**Author:** ![GarryP](https://avatars.discourse-cdn.com/v4/letter/g/da6949/32.png) [@GarryP](https://forums.fsharp.org/u/GarryP)\
**Post date:** [November 28, 2024, 1:58pm UTC](https://forums.fsharp.org/t/optimise-interface-demo/3926/2 "2024-11-28T13:58:27Z")

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My first question would be: Do you need to use interfaces and classes?

I only ask as that could be re-written with Discriminated Unions and the code would be much easier to read and maintain.

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**Author:** ![Robert344Humphries](https://avatars.discourse-cdn.com/v4/letter/r/c68b51/32.png) [@Robert344Humphries](https://forums.fsharp.org/u/Robert344Humphries)\
**Post date:** [December 6, 2024, 9:26am UTC](https://forums.fsharp.org/t/optimise-interface-demo/3926/3 "2024-12-06T09:26:33Z")

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Hello!  
Facing same issue here. Help is appreciated.

Best Regards,  
Robert

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**Author:** ![judith75hodges](https://avatars.discourse-cdn.com/v4/letter/j/ecb155/32.png) [@judith75hodges](https://forums.fsharp.org/u/judith75hodges)\
**Post date:** [December 12, 2024, 2:27pm UTC](https://forums.fsharp.org/t/optimise-interface-demo/3926/4 "2024-12-12T14:27:01Z")

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> [@devosalain](#):
>
> Can the program below be optimised.  
> -For speed. (eg inline , how)  
> -Less boilerplate (eg wrapping functions).  
> Or is it ok as it is? [MethodistMyChart](https://www.methodist-mychart.com)
> 
> ```auto
> open System
> open Xunit
> 
> type IAnimal =
> abstract member Name: string
> abstract member Talk: string -> unit
> 
> type Chicken(name: string) =
> //i:instance
> member _.iName = name
> 
> member _.iTalk(msg: string) =
> printfn $"My name is: {name}"
> printfn $"Cluck: {msg}"
> 
> interface IAnimal with
> member this.Name = this.iName
> member this.Talk(msg: string) = this.iTalk (msg)
> 
> let animalFunction (a: IAnimal) : unit =
> printfn ("I am the animalFunction")
> printfn $"In the AnimalFunction i am called: {a.Name}"
> a.Talk("Koekoek from animalFunction")
> 
> [<EntryPoint>]
> let main (args: string array) : int =
> printfn "Hello World \n"
> let c = Chicken("Clucky")
> c.iTalk ("Koekoek")
> 
> ```

How can the code be further optimized for both performance and readability while maintaining the use of interfaces in F#?

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<div class="post-metadata">

**Author:** ![McHenry](https://avatars.discourse-cdn.com/v4/letter/m/6a8cbe/32.png) [@McHenry](https://forums.fsharp.org/u/McHenry)\
**Post date:** [December 12, 2024, 2:27pm UTC](https://forums.fsharp.org/t/optimise-interface-demo/3926/5 "2024-12-12T14:27:29Z")

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Thank you for sharing…