**** Merged from MCS ****
[mono-project.git] / mcs / class / corlib / System.Reflection.Emit / FlowControl.cs
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1 // FlowControl.cs
2 //
3 // (C) 2001 Ximian, Inc. http://www.ximian.com
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.
30 namespace System.Reflection.Emit {
32 /// <summary>
33 /// Describes how an instruction alters the flow of control.
34 /// </summary>
35 public enum FlowControl {
37 /// <summary>
38 /// Branch instruction (ex: br, leave).
39 /// </summary>
40 Branch = 0,
42 /// <summary>
43 /// Break instruction (ex: break).
44 /// </summary>
45 Break = 1,
47 /// <summary>
48 /// Call instruction (ex: jmp, call, callvirt).
49 /// </summary>
50 Call = 2,
52 /// <summary>
53 /// Conditional branch instruction (ex: brtrue, brfalse).
54 /// </summary>
55 Cond_Branch = 3,
57 /// <summary>
58 /// Changes the behaviour of or provides additional
59 /// about a subsequent instruction.
60 /// (ex: prefixes such as volatile, unaligned).
61 /// </summary>
62 Meta = 4,
64 /// <summary>
65 /// Transition to the next instruction.
66 /// </summary>
67 Next = 5,
69 /// <summary>
70 /// Annotation for ann.phi instruction.
71 /// </summary>
72 Phi = 6,
74 /// <summary>
75 /// Return instruction.
76 /// </summary>
77 Return = 7,
79 /// <summary>
80 /// Throw instruction.
81 /// </summary>
82 Throw = 8