5 // Alexander Chebaturkin (chebaturkin@gmail.com)
7 // Copyright (C) 2011 Alexander Chebaturkin
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:
17 // The above copyright notice and this permission notice shall be
18 // included in all copies or substantial portions of the Software.
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.
30 using System.ComponentModel;
32 using Mono.CodeContracts.Static.Lattices;
34 namespace Mono.CodeContracts.Static {
35 static class ProofOutcome {
37 /// Can be true or false.
39 public static readonly FlatDomain<bool> Top = FlatDomain<bool>.TopValue;
43 public static readonly FlatDomain<bool> Bottom = FlatDomain<bool>.BottomValue;
47 public static readonly FlatDomain<bool> True = true;
51 public static readonly FlatDomain<bool> False = false;
53 public static FlatDomain<bool> Negate(this FlatDomain<bool> o)
61 public static bool IsTrue(this FlatDomain<bool> o)
63 return o.IsNormal () && o.Value;
66 public static bool IsFalse(this FlatDomain<bool> o)
68 return o.IsNormal () && !o.Value;