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.
29 using Mono.CodeContracts.Static.AST;
30 using Mono.CodeContracts.Static.Analysis.HeapAnalysis.Paths;
31 using Mono.CodeContracts.Static.ControlFlow;
32 using Mono.CodeContracts.Static.DataStructures;
33 using Mono.CodeContracts.Static.Lattices;
35 namespace Mono.CodeContracts.Static.Analysis {
36 interface IValueContext<SymbolicValue> {
37 bool IsZero (APC at, SymbolicValue value);
38 bool TryLocalValue (APC at, Local local, out SymbolicValue sv);
39 bool TryParameterValue (APC at, Parameter p, out SymbolicValue sv);
40 bool IsConstant (APC readAt, SymbolicValue symbol, out TypeNode type, out object constant);
41 FlatDomain<TypeNode> GetType (APC readAt, SymbolicValue symbol);
42 Sequence<PathElement> AccessPathList (APC at, SymbolicValue value, bool allowLocal, bool preferLocal);