mcs/class/Mono.CodeContracts/Mono.CodeContracts.Static.Analysis/CodeLayer.cs

   1 //
   2 // CodeLayer.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 using Mono.CodeContracts.Static.AST.Visitors;
  31 using Mono.CodeContracts.Static.ControlFlow;
  32 using Mono.CodeContracts.Static.DataFlowAnalysis;
  33 using Mono.CodeContracts.Static.Providers;
  34
  35 namespace Mono.CodeContracts.Static.Analysis {
  36         class CodeLayer<Expression, Variable, ContextData, EdgeData>
  37                 : ICodeLayer<Expression, Variable, ContextData, EdgeData>
  38                 where ContextData : IMethodContextProvider {
  39                 private readonly Lazy<ILPrinter<APC>> printer;
  40
  41                 public CodeLayer (IILDecoder<APC, Expression, Variable, ContextData, EdgeData> ilDecoder,
  42                                   IMetaDataProvider metadataDecoder,
  43                                   IContractProvider contractDecoder,
  44                                   Func<Expression, string> expressionToString,
  45                                   Func<Variable, string> variableToString)
  46                 {
  47                         ExpressionToString = expressionToString;
  48                         VariableToString = variableToString;
  49                         ILDecoder = ilDecoder;
  50                         MetaDataProvider = metadataDecoder;
  51                         ContractProvider = contractDecoder;
  52
  53                         this.printer = new Lazy<ILPrinter<APC>> (() => PrinterFactory.Create (ILDecoder, MetaDataProvider, ExpressionToString, VariableToString));
  54                 }
  55
  56                 public CodeLayer (IILDecoder<APC, Expression, Variable, ContextData, EdgeData> ilDecoder,
  57                                   IMetaDataProvider metadataDecoder,
  58                                   IContractProvider contractDecoder,
  59                                   Func<Expression, string> expressionToString,
  60                                   Func<Variable, string> variableToString, ILPrinter<APC> printer)
  61                         : this (ilDecoder, metadataDecoder, contractDecoder, expressionToString, variableToString)
  62                 {
  63                         this.printer = new Lazy<ILPrinter<APC>> (() => printer);
  64                 }
  65
  66                 public IILDecoder<APC, Expression, Variable, ContextData, EdgeData> ILDecoder { get; private set; }
  67
  68                 public ILPrinter<APC> Printer
  69                 {
  70                         get { return this.printer.Value; }
  71                 }
  72
  73                 public Func<Expression, string> ExpressionToString { get; private set; }
  74
  75                 public Func<Variable, string> VariableToString { get; private set; }
  76
  77                 public IMetaDataProvider MetaDataProvider { get; private set; }
  78                 public IContractProvider ContractProvider { get; private set; }
  79
  80                 public Func<AState, IFixPointInfo<APC, AState>> CreateForward<AState> (
  81                         IAnalysis<APC, AState, IILVisitor<APC, Expression, Variable, AState, AState>, EdgeData> analysis)
  82                 {
  83                         ForwardAnalysis<AState, EdgeData> solver = ForwardAnalysis<AState, EdgeData>.Make (ILDecoder, analysis);
  84                         return (initialState) => {
  85                                 solver.Run (initialState);
  86                                 return solver;
  87                                };
  88                 }
  89         }
  90 }