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C# Implementation.InjectAssumptionVariable方法代码示例

本文整理汇总了C#中Microsoft.Boogie.Implementation.InjectAssumptionVariable方法的典型用法代码示例。如果您正苦于以下问题:C# Implementation.InjectAssumptionVariable方法的具体用法?C# Implementation.InjectAssumptionVariable怎么用?C# Implementation.InjectAssumptionVariable使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在Microsoft.Boogie.Implementation的用法示例。


在下文中一共展示了Implementation.InjectAssumptionVariable方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: Inject

    public Implementation Inject(Implementation implementation, Program programInCachedSnapshot)
    {
      Contract.Requires(implementation != null && programInCachedSnapshot != null);

      this.programInCachedSnapshot = programInCachedSnapshot;
      assumptionVariableCount = 0;
      temporaryVariableCount = 0;
      currentImplementation = implementation;

      #region Introduce explict assumption about the precondition.

      var oldProc = programInCachedSnapshot.FindProcedure(currentImplementation.Proc.Name);
      if (oldProc != null
          && oldProc.DependencyChecksum != currentImplementation.Proc.DependencyChecksum
          && currentImplementation.ExplicitAssumptionAboutCachedPrecondition == null)
      {
        var axioms = new List<Axiom>();
        var after = new List<Cmd>();
        Expr assumedExpr = new LiteralExpr(Token.NoToken, false);
        var canUseSpecs = DependencyCollector.CanExpressOldSpecs(oldProc, Program, true);
        if (canUseSpecs && oldProc.SignatureEquals(currentImplementation.Proc))
        {
          var always = Substituter.SubstitutionFromHashtable(currentImplementation.GetImplFormalMap(), true, currentImplementation.Proc);
          var forOld = Substituter.SubstitutionFromHashtable(new Dictionary<Variable, Expr>());
          var clauses = oldProc.Requires.Select(r => Substituter.FunctionCallReresolvingApply(always, forOld, r.Condition, Program));
          var conj = Expr.And(clauses, true);
          assumedExpr = conj != null ? FunctionExtractor.Extract(conj, Program, axioms) : new LiteralExpr(Token.NoToken, true);
        }

        if (assumedExpr != null)
        {
          var lv = new LocalVariable(Token.NoToken,
            new TypedIdent(Token.NoToken, string.Format("a##cached##{0}", FreshAssumptionVariableName), Type.Bool),
            new QKeyValue(Token.NoToken, "assumption", new List<object>(), null));
          currentImplementation.InjectAssumptionVariable(lv, !canUseSpecs);
          var lhs = new SimpleAssignLhs(Token.NoToken, new IdentifierExpr(Token.NoToken, lv));
          var rhs = LiteralExpr.And(new IdentifierExpr(Token.NoToken, lv), assumedExpr);
          var assumed = new AssignCmd(currentImplementation.tok, new List<AssignLhs> { lhs }, new List<Expr> { rhs });
          assumed.IrrelevantForChecksumComputation = true;
          currentImplementation.ExplicitAssumptionAboutCachedPrecondition = assumed;
          after.Add(assumed);
        }

        if (CommandLineOptions.Clo.TraceCachingForTesting || CommandLineOptions.Clo.TraceCachingForBenchmarking)
        {
          using (var tokTxtWr = new TokenTextWriter("<console>", Console.Out, false, false))
          {
            var loc = currentImplementation.tok != null && currentImplementation.tok != Token.NoToken ? string.Format("{0}({1},{2})", currentImplementation.tok.filename, currentImplementation.tok.line, currentImplementation.tok.col) : "<unknown location>";
            Console.Out.WriteLine("Processing implementation {0} (at {1}):", currentImplementation.Name, loc);
            foreach (var a in axioms)
            {
              Console.Out.Write("  >>> added axiom: ");
              a.Expr.Emit(tokTxtWr);
              Console.Out.WriteLine();
            }
            foreach (var b in after)
            {
              Console.Out.Write("  >>> added after assuming the current precondition: ");
              b.Emit(tokTxtWr, 0);
            }
          }
        }
      }

      #endregion

      var result = VisitImplementation(currentImplementation);
      currentImplementation = null;
      this.programInCachedSnapshot = null;
      return result;
    }
开发者ID:qunyanm,项目名称:boogie,代码行数:71,代码来源:VerificationResultCache.cs


注:本文中的Microsoft.Boogie.Implementation.InjectAssumptionVariable方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。