1 //
2 // EdgeTag.cs
3 //
4 // Authors:
5 // 	Alexander Chebaturkin (chebaturkin@gmail.com)
6 //
7 // Copyright (C) 2011 Alexander Chebaturkin
8 //
9 // Permission is hereby granted, free of charge, to any person obtaining
10 // a copy of this software and associated documentation files (the
11 // "Software"), to deal in the Software without restriction, including
12 // without limitation the rights to use, copy, modify, merge, publish,
13 // distribute, sublicense, and/or sell copies of the Software, and to
14 // permit persons to whom the Software is furnished to do so, subject to
15 // the following conditions:
16 //
17 // The above copyright notice and this permission notice shall be
18 // included in all copies or substantial portions of the Software.
19 //
20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 //
28 
29 using System;
30 
31 namespace Mono.CodeContracts.Static.ControlFlow {
32 	[Flags]
33 	enum EdgeTag : uint {
34 		None              = 0,
35 		FallThroughReturn = 1,
36 		Branch            = 1 << 1,
37 		Return            = 1 << 2,
38 		EndSubroutine     = 1 << 3,
39 		True              = 1 << 4,
40 		False             = 1 << 5,
41 		FallThrough       = 1 << 6,
42 		Entry             = 1 << 7,
43 		AfterNewObj       = 1 << 8  | AfterMask,
44 		AfterCall         = 1 << 9  | AfterMask,
45 		Exit              = 1 << 10,
46 		Finally           = 1 << 11,
47 		Inherited         = 1 << 12 | InheritedMask,
48 		BeforeCall        = 1 << 13 | BeforeMask,
49 		BeforeNewObj      = 1 << 14 | BeforeMask,
50 		Requires          = 1 << 15,
51 		Assume            = 1 << 16,
52 		Assert            = 1 << 17,
53 		Invariant         = 1 << 18,
54 		OldManifest       = 1 << 19 | OldMask,
55 		Old               = 1 << 20 | OldMask,
56 		EndOld            = 1 << 21,
57 
58 		BeforeMask        = 1 << 22,
59 		AfterMask         = 1 << 23,
60 		InheritedMask     = 1 << 24,
61 		ExtraMask         = 1 << 25,
62 		OldMask           = 1 << 26,
63 	}
64 }
65