public static string        csharpCode(this Ast_CSharp astCSharp)
 {
     return((astCSharp.notNull() && astCSharp.SourceCode.valid())
                 ? astCSharp.SourceCode
                 : "");
 }
 public static AstDetails astDetails(this Ast_CSharp astCSharp)
 {
     return(astCSharp.notNull() ? astCSharp.AstDetails : null);
 }