private async Task<Document> FormatXmlAsync(Document document, ArgumentSyntax argSntax, CancellationToken cancellationToken) { var root = await document.GetSyntaxRootAsync(cancellationToken); var tree = root.SyntaxTree; //Get the character position of the ArgumentSyntax FileLinePositionSpan position = tree.GetLineSpan(argSntax.Span); int cSpace = position.StartLinePosition.Character; //Get the parent VariableDeclaration to figure out the preceeding trivia since we can't //get the column position from GetLineSpan (bug?) var parent = argSntax.Ancestors().Where(t => t.IsKind(SyntaxKind.VariableDeclaration)).FirstOrDefault(); var parentTrivia = parent.GetLeadingTrivia().ToFullString(); var xml = argSntax.Expression.GetFirstToken().ValueText; var newXml = FormatXml(xml); //Process each line of the formatted XML and prepend the parent trivia & spaces string[] xmlLines = newXml.Split(new string[] { "\r\n", "\n" }, StringSplitOptions.None); for (int i = 1; i < xmlLines.Length; i++) { xmlLines[i] = parentTrivia + new String(' ', (cSpace - 14)) + xmlLines[i]; } newXml = String.Join("\r\n", xmlLines); newXml = "@\"" + newXml + "\""; var newNode = SyntaxFactory.Argument(null, SyntaxFactory.Token(SyntaxKind.None), SyntaxFactory.IdentifierName(newXml)); var newRoot = root.ReplaceNode(argSntax, newNode); return document.WithSyntaxRoot(newRoot); }
private static bool FlowsOut(ExpressionSyntax dataFlowParent, ArgumentSyntax decl, IdentifierNameSyntax[] references) { ForStatementSyntax forStatement; if ((forStatement = decl.Ancestors().OfType<ForStatementSyntax>().FirstOrDefault()) != null && forStatement.Incrementors.Span.Contains(decl.Position) && forStatement.Statement.DescendantNodes().OfType<ForStatementSyntax>().Any(f => f.Condition == null)) { return false; } var containingStatement = decl.Ancestors().OfType<StatementSyntax>().FirstOrDefault(); var containingReturnOrThrow = containingStatement as ReturnStatementSyntax ?? (StatementSyntax)(containingStatement as ThrowStatementSyntax); MethodDeclarationSyntax methodDeclParent; if (containingReturnOrThrow != null && decl.Identifier.ValueText == "x1" && ((methodDeclParent = containingReturnOrThrow.Parent.Parent as MethodDeclarationSyntax) == null || methodDeclParent.Body.Statements.First() != containingReturnOrThrow)) { return false; } foreach (var reference in references) { if (!dataFlowParent.Span.Contains(reference.Span) && (containingReturnOrThrow == null || containingReturnOrThrow.Span.Contains(reference.SpanStart)) && (reference.SpanStart > decl.SpanStart || (containingReturnOrThrow == null && reference.Ancestors().OfType<DoStatementSyntax>().Join( decl.Ancestors().OfType<DoStatementSyntax>(), d => d, d => d, (d1, d2) => true).Any()))) { if (IsRead(reference)) { return true; } } } return false; }