mono/tests/custom-attr.cs

   1
   2 using System;
   3 using System.Reflection;
   4
   5 namespace Test {
   6         public class MyAttribute: Attribute {
   7                 public string val;
   8                 public MyAttribute (string stuff) {
   9                         System.Console.WriteLine (stuff);
  10                         val = stuff;
  11                 }
  12         }
  13         public class My2Attribute: MyAttribute {
  14                 public int ival;
  15                 public My2Attribute (string stuff, int blah) : base (stuff) {
  16                         System.Console.WriteLine ("ctor with int val"+stuff);
  17                         ival = blah;
  18                 }
  19         }
  20
  21         public class My3Attribute : Attribute {
  22                 char[] array_val;
  23
  24                 public char[] Prop {
  25                         get {
  26                                 return array_val;
  27                         }
  28                         set {
  29                                 array_val = value;
  30                         }
  31                 }
  32
  33                 public char[] Prop2;
  34         }
  35
  36         class XAttribute : Attribute {
  37                 public XAttribute ()
  38                 {
  39                         throw new Exception ("X");
  40                 }
  41         }
  42
  43         class ZAttribute : Attribute {
  44         }
  45
  46         [X, Z, Serializable]
  47         class Y {
  48         }
  49
  50         [My("testclass")]
  51         [My2("testclass", 22)]
  52         [My3(Prop = new char [] { 'A', 'B', 'C', 'D' }, Prop2 = new char [] { 'A', 'D' })]
  53         public class Test {
  54                 static public int Main() {
  55                         System.Reflection.MemberInfo info = typeof (Test);
  56                         object[] attributes = info.GetCustomAttributes (false);
  57                         for (int i = 0; i < attributes.Length; i ++) {
  58                                 System.Console.WriteLine(attributes[i]);
  59                         }
  60                         if (attributes.Length != 3)
  61                                 return 1;
  62                         for (int i = 0; i < attributes.Length; ++i) {
  63                                 if (attributes [i] is MyAttribute) {
  64                                         if (((MyAttribute)attributes [i]).val != "testclass")
  65                                                 return 2;
  66                                 }
  67                                 if (attributes [i] is My3Attribute) {
  68                                         if (new String (((My3Attribute)attributes [i]).Prop) != "ABCD") {
  69                                                 Console.WriteLine (new String (((My3Attribute)attributes [i]).Prop));
  70                                                 return 3;
  71                                         }
  72                                         if (new String (((My3Attribute)attributes [i]).Prop2) != "AD") {
  73                                                 Console.WriteLine (new String (((My3Attribute)attributes [i]).Prop2));
  74                                                 return 4;
  75                                         }
  76                                 }
  77                         }
  78
  79                         //
  80                         // Test that requesting a specific custom attributes does not
  81                         // create all the others
  82                         //
  83
  84                         typeof (Y).IsDefined (typeof (ZAttribute), true);
  85                         typeof (Y).IsDefined (typeof (XAttribute), true);
  86
  87                         typeof (Y).GetCustomAttributes (typeof (ZAttribute), true);
  88
  89                         try {
  90                                 typeof (Y).GetCustomAttributes (true);
  91                                 return 4;
  92                         }
  93                         catch {
  94                         }
  95
  96                         return 0;
  97                 }
  98         }
  99 }