tests/test-188.cs

   1 //
   2 // Test that the foreach statement generated by mcs invokes the Dispose()
   3 // method even if the enumerator class returned by GetEnumerator () does not
   4 // implement IDisposable.
   5 //
   6
   7 using System;
   8
   9 public class Enumerator {
  10
  11         int counter;
  12
  13         public Enumerator () {
  14                 counter = 3;
  15         }
  16
  17         public bool MoveNext () {
  18                 return (counter -- > 0);
  19         }
  20
  21         public char Current {
  22                 get {
  23                         return 'a';
  24                 }
  25         }
  26 }
  27
  28 class RealEnumerator : Enumerator, IDisposable {
  29
  30         Coll c;
  31
  32         public RealEnumerator (Coll c) {
  33                 this.c = c;
  34         }
  35
  36         public void Dispose () {
  37                 c.disposed = true;
  38         }
  39 }
  40
  41 public class Coll {
  42
  43         public bool disposed;
  44
  45         public Enumerator GetEnumerator () {
  46                 return new RealEnumerator (this);
  47         }
  48 }
  49
  50 class Test {
  51
  52         public static int Main(String[] args)
  53         {
  54                 Coll coll = new Coll ();
  55                 foreach (char c in coll) {
  56                 }
  57                 return (coll.disposed ? 0 : 1);
  58         }
  59 }