class/corlib/System.Reflection.Emit/FlowControl.cs

   1 // FlowControl.cs
   2 //
   3 // (C) 2001 Ximian, Inc.  http://www.ximian.com
   4
   5 //
   6 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
   7 //
   8 // Permission is hereby granted, free of charge, to any person obtaining
   9 // a copy of this software and associated documentation files (the
  10 // "Software"), to deal in the Software without restriction, including
  11 // without limitation the rights to use, copy, modify, merge, publish,
  12 // distribute, sublicense, and/or sell copies of the Software, and to
  13 // permit persons to whom the Software is furnished to do so, subject to
  14 // the following conditions:
  15 //
  16 // The above copyright notice and this permission notice shall be
  17 // included in all copies or substantial portions of the Software.
  18 //
  19 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  20 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  21 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  22 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  23 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  24 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  25 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  26 //
  27
  28 using System.Runtime.InteropServices;
  29
  30 namespace System.Reflection.Emit {
  31
  32         /// <summary>
  33         ///  Describes how an instruction alters the flow of control.
  34         /// </summary>
  35         [ComVisible (true)]
  36         [Serializable]
  37         public enum FlowControl {
  38
  39                 /// <summary>
  40                 /// Branch instruction (ex: br, leave).
  41                 /// </summary>
  42                 Branch = 0,
  43
  44                 /// <summary>
  45                 ///  Break instruction (ex: break).
  46                 /// </summary>
  47                 Break = 1,
  48
  49                 /// <summary>
  50                 ///  Call instruction (ex: jmp, call, callvirt).
  51                 /// </summary>
  52                 Call = 2,
  53
  54                 /// <summary>
  55                 ///  Conditional branch instruction (ex: brtrue, brfalse).
  56                 /// </summary>
  57                 Cond_Branch = 3,
  58
  59                 /// <summary>
  60                 ///  Changes the behaviour of or provides additional
  61                 ///  about a subsequent instruction.
  62                 ///  (ex: prefixes such as volatile, unaligned).
  63                 /// </summary>
  64                 Meta = 4,
  65
  66                 /// <summary>
  67                 ///  Transition to the next instruction.
  68                 /// </summary>
  69                 Next = 5,
  70
  71                 /// <summary>
  72                 ///  Annotation for ann.phi instruction.
  73                 /// </summary>
  74                 [Obsolete ("This API has been deprecated.")]
  75                 Phi = 6,
  76
  77                 /// <summary>
  78                 ///  Return instruction.
  79                 /// </summary>
  80                 Return = 7,
  81
  82                 /// <summary>
  83                 ///  Throw instruction.
  84                 /// </summary>
  85                 Throw = 8
  86         }
  87
  88 }
  89