CSharpCodeBlock - [0..22)::22 - [{<span foo='@@def' />}]
    CSharpStatement - [0..22)::22
        CSharpTransition - [0..0)::0 - Gen<None> - SpanEditHandler;Accepts:None
            Transition;[<Missing>];
        CSharpStatementBody - [0..22)::22
            RazorMetaCode - [0..1)::1 - Gen<None> - SpanEditHandler;Accepts:None
                LeftBrace;[{];
            CSharpCodeBlock - [1..21)::20
                MarkupBlock - [1..21)::20
                    MarkupTagBlock - [1..21)::20 - [<span foo='@@def' />]
                        MarkupTextLiteral - [1..6)::5 - [<span] - Gen<Markup> - SpanEditHandler;Accepts:Any
                            OpenAngle;[<];
                            Text;[span];
                        MarkupAttributeBlock - [6..18)::12 - [ foo='@@def']
                            MarkupTextLiteral - [6..7)::1 - [ ] - Gen<Markup> - SpanEditHandler;Accepts:Any
                                Whitespace;[ ];
                            MarkupTextLiteral - [7..10)::3 - [foo] - Gen<Markup> - SpanEditHandler;Accepts:Any
                                Text;[foo];
                            Equals;[=];
                            MarkupTextLiteral - [11..12)::1 - ['] - Gen<None> - SpanEditHandler;Accepts:Any
                                SingleQuote;['];
                            GenericBlock - [12..17)::5
                                MarkupBlock - [12..14)::2
                                    MarkupTextLiteral - [12..13)::1 - [@] - Gen<LitAttr:@(12:0,12)> - SpanEditHandler;Accepts:None
                                        Transition;[@];
                                    MarkupEphemeralTextLiteral - [13..14)::1 - [@] - Gen<None> - SpanEditHandler;Accepts:None
                                        Transition;[@];
                                MarkupLiteralAttributeValue - [14..17)::3 - [def]
                                    MarkupTextLiteral - [14..17)::3 - [def] - Gen<Markup> - SpanEditHandler;Accepts:Any
                                        Text;[def];
                            MarkupTextLiteral - [17..18)::1 - ['] - Gen<None> - SpanEditHandler;Accepts:Any
                                SingleQuote;['];
                        MarkupTextLiteral - [18..21)::3 - [ />] - Gen<Markup> - SpanEditHandler;Accepts:None
                            Whitespace;[ ];
                            ForwardSlash;[/];
                            CloseAngle;[>];
                CSharpStatementLiteral - [21..21)::0 - [] - Gen<Stmt> - SpanEditHandler;Accepts:Any
                    Marker;[];
            RazorMetaCode - [21..22)::1 - Gen<None> - SpanEditHandler;Accepts:None
                RightBrace;[}];
