mcs/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 #if NET_2_0
  36         [ComVisible (true)]
  37 #endif
  38         public enum FlowControl {
  39
  40                 /// <summary>
  41                 /// Branch instruction (ex: br, leave).
  42                 /// </summary>
  43                 Branch = 0,
  44
  45                 /// <summary>
  46                 ///  Break instruction (ex: break).
  47                 /// </summary>
  48                 Break = 1,
  49
  50                 /// <summary>
  51                 ///  Call instruction (ex: jmp, call, callvirt).
  52                 /// </summary>
  53                 Call = 2,
  54
  55                 /// <summary>
  56                 ///  Conditional branch instruction (ex: brtrue, brfalse).
  57                 /// </summary>
  58                 Cond_Branch = 3,
  59
  60                 /// <summary>
  61                 ///  Changes the behaviour of or provides additional
  62                 ///  about a subsequent instruction.
  63                 ///  (ex: prefixes such as volatile, unaligned).
  64                 /// </summary>
  65                 Meta = 4,
  66
  67                 /// <summary>
  68                 ///  Transition to the next instruction.
  69                 /// </summary>
  70                 Next = 5,
  71
  72                 /// <summary>
  73                 ///  Annotation for ann.phi instruction.
  74                 /// </summary>
  75 #if NET_2_0
  76                 [Obsolete ("This API has been deprecated.")]
  77 #endif
  78                 Phi = 6,
  79
  80                 /// <summary>
  81                 ///  Return instruction.
  82                 /// </summary>
  83                 Return = 7,
  84
  85                 /// <summary>
  86                 ///  Throw instruction.
  87                 /// </summary>
  88                 Throw = 8
  89         }
  90
  91 }
  92