1 //
2 // Branch.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 namespace Mono.CodeContracts.Static.AST {
30 	class Branch : Statement {
31 		public readonly bool LeavesExceptionBlock;
32 		public Expression Condition;
33 		public Block Target;
34 		public bool IsShortOffset;
35 		public bool Unsigned;
36 
Branch(Expression condition, Block target, bool isShortOffset, bool unsigned, bool leavesExceptionBlock)37 		public Branch (Expression condition, Block target, bool isShortOffset, bool unsigned, bool leavesExceptionBlock) : base (NodeType.Branch)
38 		{
39 			this.Condition = condition;
40 			this.Target = target;
41 			this.IsShortOffset = isShortOffset;
42 			this.Unsigned = unsigned;
43 			this.LeavesExceptionBlock = leavesExceptionBlock;
44 		}
45 
ToString()46 		public override string ToString ()
47 		{
48 			return string.Format ("Branch({0}, {1})", this.Condition == null ? "<no cond>" : this.Condition.ToString (), this.Target == null ? "<no target>" : this.Target.ToString ());
49 		}
50 	}
51 
52 	enum BranchOperator {
53 		Beq,
54 		Bge,
55 		Bge_Un,
56 		Bgt,
57 		Bgt_Un,
58 		Ble,
59 		Ble_Un,
60 		Blt,
61 		Blt_Un,
62 		Bne_un
63 	}
64 }
65