mcs/tests/dtest-033.cs

   1 using System;
   2
   3 public class Test
   4 {
   5         byte Prop {
   6                 get { return 4; }
   7                 set { }
   8         }
   9
  10         byte this [int arg] {
  11                 get { return 2; }
  12                 set { }
  13         }
  14
  15         byte Byte = 200;
  16         static dynamic V;
  17         dynamic DynamicByte;
  18         byte[] ByteArray = { 1, 100 };
  19
  20         public static int Main ()
  21         {
  22                 dynamic v = 'a';
  23                 dynamic a = new Test ();
  24
  25                 string s = "-sdfas";
  26
  27                 // dynamic compound assignment with different result type
  28                 v += s;
  29
  30                 if (v != "a-sdfas")
  31                         return 1;
  32
  33                 dynamic d2 = null;
  34                 d2 += "a";
  35                 if (d2 != "a")
  36                         return 2;
  37
  38                 byte b = 4;
  39                 a.Prop *= b;
  40                 a[4] ^= b;
  41
  42                 dynamic d = 1;
  43 /*
  44                 b = byte.MaxValue;
  45                 try {
  46                         checked {
  47                                 b += d;
  48                                 return 3;
  49                         }
  50                 } catch (OverflowException) {
  51                 }
  52
  53                 b += d;
  54 */
  55                 try {
  56                         checked {
  57                                 a.Byte += 100;
  58                                 return 4;
  59                         }
  60                 } catch (OverflowException) {
  61                 }
  62
  63                 a.Byte += 100;
  64
  65                 checked {
  66                         d = byte.MaxValue;
  67                         d += 100;
  68                 }
  69
  70                 checked {
  71                         V = byte.MaxValue;
  72                         V -= 300;
  73                 }
  74
  75                 var t = new Test ();
  76                 t.DynamicByte = byte.MaxValue;
  77                 d = t;
  78                 checked {
  79                         d.DynamicByte -= 500;
  80                 }
  81
  82                 if (t.DynamicByte != -245)
  83                         return 5;
  84
  85                 try {
  86                         checked {
  87                                 d.ByteArray[1] += 200;
  88                                 return 6;
  89                         }
  90                 } catch (OverflowException) {
  91                 }
  92
  93                 return 0;
  94         }
  95 }