Exemplo n.º 1
0
        public static Document OpenDocument(EditorWorkspace workspace, DocumentId documentId)
        {
            if (!workspace.IsDocumentOpen(documentId))
            {
                workspace.OpenDocument(documentId);
                Debug.Assert(workspace.IsDocumentOpen(documentId), "Could not open document.");
            }

            return(workspace.CurrentSolution.GetDocument(documentId));
        }
Exemplo n.º 2
0
        // TODO: refactor this code to share with DoTheWork
        private string DoTheWorkToInferInvariants()
        {
            // We should move this in the UI
            var selectionStart = this.wpfTextView.Selection.Start.Position.Position;
            var selectionEnd   = this.wpfTextView.Selection.End.Position.Position;

            if (selectionStart == selectionEnd)
            {
                Trace.WriteLine(string.Format("Selection: {0}", selectionStart));

                var container = wpfTextView.TextBuffer.AsTextContainer();
                //var text = wpfTextView.TextBuffer.CurrentSnapshot.AsText();
                EditorWorkspace workspace;
                EditorWorkspace.TryGetWorkspace(container, out workspace);
                //var workspaceDiscovery = Helper.GetMefService<IWorkspaceDiscoveryService>();
                //var workspace = workspaceDiscovery.GetWorkspace(container);

                if (workspace != null)
                {
                    Document   doc;
                    DocumentId docId;
                    if (workspace.TryGetDocumentId(container, out docId))
                    {
                        doc = Helper.OpenDocument(workspace, docId);
                        var syntax = doc.GetSyntaxTree();
                        var source = syntax.GetText().ToString();

                        // Generate the new text
                        var newText = GenerateAdornedSource(doc, selectionStart);

                        var newSolution = doc.Project.Solution.WithDocumentText(doc.Id, new StringText(newText));
                        //var newSolution = doc.Project.Solution.UpdateDocument(doc.Id, new StringText(newText));
                        var locDocument = newSolution.GetDocument(doc.Id);
                        var newTree     = (CompilationUnitSyntax)locDocument.GetSyntaxTree().GetRoot();

                        if (!newTree.ContainsDiagnostics)
                        {
                            try
                            {
                                Trace.WriteLine(string.Format("Annotated tree for the state:\n{0}", newText));

                                var clousotConnection = new RoslynToCCICodeModel.ClousotGlue();
                                var run = clousotConnection.AnalyzeMeAUnit(locDocument,
                                                                           newTree,
                                                                           new System.Threading.CancellationToken(),
                                                                           this.options,
                                                                           new string[] { "-warnscores:false", "-sortwarns:false", "-suggest:!!", "-invariantsuggestmode:true" },
                                                                           true // we want to filter all the messages but the answer of Clousot
                                                                           );

                                foreach (var r in run)
                                {
                                    Trace.WriteLine(string.Format("{0}: {1}", r.Message, r.outcome));

                                    if (r.IsInvariantAtSuggestion)
                                    {
                                        return(PrettyFormat(r.Message));
                                    }
                                }
                            }
                            catch (Exception e)
                            {
                                Trace.WriteLine(string.Format("Some exception was thrown inside Clousot...\nDetails:\n{0}", e.ToString()));
                            }
                        }
                        else
                        {
                            Trace.WriteLine("Compilation error from Roslyn");
                        }
                    }
                }
            }
            else
            {
                Trace.WriteLine(string.Format("start/end do not match {0} {1}", selectionStart, selectionEnd));
            }

            return(null);
        }
Exemplo n.º 3
0
        private IEnumerable <SearchResult> DoTheWorkToSearchTheCallers(string query)
        {
            // We should move this in the UI
            var selectionStart = this.wpfTextView.Selection.Start.Position.Position;
            var selectionEnd   = this.wpfTextView.Selection.End.Position.Position;

            var results = new List <SearchResult>();

            if (selectionStart == selectionEnd)
            {
                Trace.WriteLine(string.Format("Selection: {0}", selectionStart));

                var             container = wpfTextView.TextBuffer.AsTextContainer();
                EditorWorkspace workspace;
                EditorWorkspace.TryGetWorkspace(container, out workspace);

                if (workspace != null)
                {
                    Document   doc;
                    DocumentId docId;
                    if (workspace.TryGetDocumentId(container, out docId))
                    {
                        doc = Helper.OpenDocument(workspace, docId);
                        var span       = new Microsoft.CodeAnalysis.Text.TextSpan(selectionStart, 0);
                        var syntaxNode = doc.GetSyntaxTree().GetRoot() as SyntaxNode;
                        if (syntaxNode != null)
                        {
                            var methodFinder = EnclosingMethodFinder.GetMethodSpans(syntaxNode);
                            BaseMethodDeclarationSyntax method;
                            if (methodFinder.TryGetValueContainingSpan(span, out method))
                            {
                                // Add the precondition
                                var preAsStr  = string.Format(CLOUSOT_QUERY_PRECONDITION, query);
                                var pre       = SyntaxFactory.ParseStatement(preAsStr + Environment.NewLine + Environment.NewLine); // F: adding two newlines as Roslyn for some reason pretty print the text in a different way, and loses one line at the end of the file
                                var newMethod = method.InsertStatements(pre, ContractKind.Precondition);
                                var newRoot   = ((SyntaxNode)doc.GetSyntaxTree().GetRoot()).ReplaceNode(method, newMethod);

                                // Create the new Roslyn environment
                                var newSolution = doc.Project.Solution.WithDocumentText(doc.Id, new StringText(newRoot.GetText().ToString()));
                                //var newSolution = doc.Project.Solution.UpdateDocument(doc.Id, new StringText(newRoot.GetText()));
                                var locDocument = newSolution.GetDocument(doc.Id);
                                var newTree     = (CompilationUnitSyntax)locDocument.GetSyntaxTree().GetRoot();

                                try
                                {
                                    Trace.WriteLine(string.Format("Annotated tree for the state:\n{0}", newRoot.GetText()));

                                    var run = new RoslynToCCICodeModel.ClousotGlue().AnalyzeMeAUnit(locDocument,
                                                                                                    newTree,
                                                                                                    new System.Threading.CancellationToken(),
                                                                                                    this.options,
                                                                                                    new string[] { "-warnscores:false", "-sortwarns:false", "-suggest:!!", "-show", "validations" },
                                                                                                    false
                                                                                                    );

                                    foreach (var r in run)
                                    {
                                        Trace.WriteLine(string.Format("{0}: {1}", r.Message, r.outcome));

                                        if (r.outcome.HasValue &&                                                 // it is not a suggestion
                                            r.startPoint != null &&
                                            r.Message.Contains("Contract.Requires") && r.Message.Contains(query)) // we should do better than chekcing the string. This is very weak
                                        {
                                            BaseMethodDeclarationSyntax caller;
                                            if (methodFinder.TryGetValueContainingSpan(r.Span, out caller))
                                            {
                                                var pair = r.startPoint;
                                                results.Add(new SearchResult(pair.Item1, pair.Item2, caller, r.outcome.Value));
                                            }
                                            else
                                            {
                                                Trace.WriteLine("Failed to find the containing method");
                                            }
                                        }
                                    }
                                }
                                catch (Exception e)
                                {
                                    Trace.WriteLine(string.Format("Some exception was thrown inside Clousot...\nDetails:\n{0}", e.ToString()));
                                }
                            }
                        }
                    }
                }
            }
            return(results.Distinct());
        }
Exemplo n.º 4
0
        private ProofOutcome?DoTheWork(string query, IEnumerable <CodeAssumption> assumptions)
        {
            // We should move this in the UI
            var selectionStart = this.wpfTextView.Selection.Start.Position.Position;
            var selectionEnd   = this.wpfTextView.Selection.End.Position.Position;

            if (selectionStart == selectionEnd)
            {
                Trace.WriteLine(string.Format("Selection: {0}", selectionStart));

                var container = wpfTextView.TextBuffer.AsTextContainer();
                //var text = wpfTextView.TextBuffer.CurrentSnapshot.AsText();
                EditorWorkspace workspace;
                EditorWorkspace.TryGetWorkspace(container, out workspace);
                //var workspaceDiscovery = Helper.GetMefService<IWorkspaceDiscoveryService>();
                //var workspace = workspaceDiscovery.GetWorkspace(container);

                if (workspace != null)
                {
                    Document   doc;
                    DocumentId docId;
                    if (workspace.TryGetDocumentId(container, out docId))
                    {
                        doc = Helper.OpenDocument(workspace, docId);
                        var syntax = doc.GetSyntaxTree();
                        var source = syntax.GetText().ToString();

                        var newText = GenerateInstrumentedSourceText(query, assumptions, selectionStart, source);

                        var newSolution = doc.Project.Solution.WithDocumentText(doc.Id, new StringText(newText));
                        //var newSolution = doc.Project.Solution.UpdateDocument(doc.Id, new StringText(newText));
                        var locDocument   = newSolution.GetDocument(doc.Id);
                        var newTree       = (Microsoft.CodeAnalysis.CSharp.Syntax.CompilationUnitSyntax)locDocument.GetSyntaxTree().GetRoot();
                        var adornedSource = GenerateAdornedSource(doc, selectionStart);

                        if (!newTree.ContainsDiagnostics)
                        {
                            try
                            {
                                var clousotConnection = new RoslynToCCICodeModel.ClousotGlue();
                                var run = clousotConnection.AnalyzeMeAUnit(locDocument,
                                                                           newTree,
                                                                           new System.Threading.CancellationToken(),
                                                                           this.options,
                                                                           new string[] { "-warnscores:false", "-sortwarns:false", "-show:validations", "-show:unreached" },
                                                                           true // we want to filter all the messages but the answer of Clousot
                                                                           );

                                foreach (var r in run)
                                {
                                    Trace.WriteLine(string.Format("{0}: {1}", r.Message, r.outcome));

                                    // if we have a non-null, then this is the outcome
                                    // We can have outcome == null for e.g., suggestions.
                                    // In this case we simply ignore them
                                    if (r.outcome.HasValue)
                                    {
                                        return(r.outcome);
                                    }
                                }
                            }
                            catch (Exception e)
                            {
                                Trace.WriteLine(string.Format("Some exception was thrown inside Clousot...\nDetails:\n{0}", e.ToString()));
                            }
                        }
                        else
                        {
                            Trace.WriteLine("Compilation error from Roslyn");
                        }
                    }
                }
            }
            else
            {
                Trace.WriteLine(string.Format("start/end do not match {0} {1}", selectionStart, selectionEnd));
            }

            return(null);
        }