class/Mono.C5/UserGuideExamples/ThisFun.cs

   1 // Experiment: implicit conversion of indexer to function
   2 // sestoft@dina.kvl.dk * 2005-11-08
   3
   4 using System;
   5 using C5;
   6
   7 class MyFunTest {
   8   public static void Main(String[] args) {
   9     FooBar fb = new FooBar();
  10     IList<int> list = new LinkedList<int>();
  11     list.AddAll(new int[] { 2, 3, 5, 7, 11 });
  12     list.Map<double>(fb).Apply(Console.WriteLine);
  13     list.Apply(fb);
  14   }
  15 }
  16
  17 class FooBar {
  18   public double this[int x] {
  19     get {
  20       Console.WriteLine(x);
  21       return x + 1.5;
  22     }
  23   }
  24
  25   public Fun<int,double> Fun {
  26     get {
  27       return delegate(int x) { return this[x]; };
  28     }
  29   }
  30
  31   public Act<int> Act {
  32     get {
  33       return delegate(int x) { double junk = this[x]; };
  34     }
  35   }
  36
  37   public static implicit operator Fun<int,double>(FooBar fb) {
  38     return delegate(int x) { return fb[x]; };
  39   }
  40
  41   public static implicit operator Act<int>(FooBar fb) {
  42     return delegate(int x) { double junk = fb[x]; };
  43   }
  44 }
  45
  46