1 //
2 // System.Reflection.Emit/Label.cs
3 //
4 // Author:
5 //   Paolo Molaro (lupus@ximian.com)
6 //
7 // (C) 2001 Ximian, Inc.  http://www.ximian.com
8 //
9 
10 //
11 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
12 //
13 // Permission is hereby granted, free of charge, to any person obtaining
14 // a copy of this software and associated documentation files (the
15 // "Software"), to deal in the Software without restriction, including
16 // without limitation the rights to use, copy, modify, merge, publish,
17 // distribute, sublicense, and/or sell copies of the Software, and to
18 // permit persons to whom the Software is furnished to do so, subject to
19 // the following conditions:
20 //
21 // The above copyright notice and this permission notice shall be
22 // included in all copies or substantial portions of the Software.
23 //
24 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
28 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
29 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
30 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
31 //
32 
33 using System.Runtime.InteropServices;
34 
35 namespace System.Reflection.Emit {
36 
37 	[ComVisible (true)]
38 	[Serializable]
39 	public struct Label {
40 		internal int label;
41 
LabelSystem.Reflection.Emit.Label42 		internal Label (int val) {
43 			label = val;
44 		}
45 
EqualsSystem.Reflection.Emit.Label46 		public override bool Equals (object obj) {
47 			bool res = obj is Label;
48 
49 			if (res) {
50 				Label l = (Label)obj;
51 				res = (label == l.label);
52 			}
53 
54 			return res;
55 		}
56 
EqualsSystem.Reflection.Emit.Label57 		public bool Equals (Label obj)
58 		{
59 			return (label == obj.label);
60 		}
61 
operator ==System.Reflection.Emit.Label62 		public static bool operator == (Label a, Label b) {
63 			return a.Equals (b);
64 		}
65 
operator !=System.Reflection.Emit.Label66 		public static bool operator != (Label a, Label b) {
67 			return !(a == b);
68 		}
69 
GetHashCodeSystem.Reflection.Emit.Label70 		public override int GetHashCode () {
71 			return label.GetHashCode ();
72 		}
73 	}
74 }
75