public void VisitUsingDirective(UsingDirectiveSyntax node) { if (node == null) throw new ArgumentNullException("node"); node.Validate(); WriteLeadingTrivia(node); _writer.WriteIndent(); _writer.WriteKeyword(PrinterKeyword.Using); _writer.WriteSpace(); if (node.Alias != null) node.Alias.Accept(this); node.Name.Accept(this); _writer.EndStatement(); WriteTrailingTrivia(node); }