private static Dictionary <string, QuerySpan> GetSpans(QuerySpan tokens)
{
if (tokens.First().Type != ODataTokenType.Identifier)
{
throw new InvalidOperationException();
}
var span = new QuerySpan(tokens.List, tokens.First().Text, tokens.Start + 2);
var result = new Dictionary <string, QuerySpan>(StringComparer.OrdinalIgnoreCase)
{
[span.Name] = span
};
for (var i = tokens.Start + 1; i < tokens.Start + tokens.Length; i++)
{
if (tokens.List[i].Type == ODataTokenType.Semicolon)
{
span.Length = i - span.Start;
if ((i + 1) < tokens.Start + tokens.Length)
{
i++;
if (tokens.List[i].Type != ODataTokenType.Identifier)
{
throw new InvalidOperationException();
}
span = new QuerySpan(tokens.List, tokens.List[i].Text, i + 2);
result[span.Name] = span;
}
}
}
span.Length = tokens.Start + tokens.Length - span.Start;
return(result);
}
