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Strategy pattern

Strategy pattern in F#

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let quicksort l = 
    printfn "quick sort"
let shellsort l = 
    printfn "shell short"
let bubblesort l = 
    printfn "bubble sort"
type Strategy(sortFunction) = 
    member this.SortFunction with get() = sortFunction    
    member this.Execute(list) = sortFunction list

let strategy() = 
    let s = Strategy(quicksort)    
    s.Execute([1..6])

strategy()
val quicksort : l:'a -> unit

Full name: Script.quicksort
val l : 'a
val printfn : format:Printf.TextWriterFormat<'T> -> 'T

Full name: Microsoft.FSharp.Core.ExtraTopLevelOperators.printfn
val shellsort : l:'a -> unit

Full name: Script.shellsort
val bubblesort : l:'a -> unit

Full name: Script.bubblesort
Multiple items
type Strategy =
  new : sortFunction:(int list -> unit) -> Strategy
  member Execute : list:int list -> unit
  member SortFunction : (int list -> unit)

Full name: Script.Strategy

--------------------
new : sortFunction:(int list -> unit) -> Strategy
val sortFunction : (int list -> unit)
val this : Strategy
member Strategy.SortFunction : (int list -> unit)

Full name: Script.Strategy.SortFunction
member Strategy.Execute : list:int list -> unit

Full name: Script.Strategy.Execute
Multiple items
val list : int list

--------------------
type 'T list = List<'T>

Full name: Microsoft.FSharp.Collections.list<_>
val strategy : unit -> unit

Full name: Script.strategy
val s : Strategy
member Strategy.Execute : list:int list -> unit

More information

Link:http://fssnip.net/7k
Posted:12 years ago
Author:Tao Liu
Tags: design patterns

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