/// <summary>
/// Returns a query option value by its name and removes the query option from the <paramref name="queryOptions"/> collection.
/// Currently, it is only used by un-exposed syntactic tree parsing.
/// </summary>
/// <param name="queryOptions">The collection of query options.</param>
/// <param name="queryOptionName">The name of the query option to get.</param>
/// <returns>The value of the query option or null if no such query option exists.</returns>
internal static string GetQueryOptionValueAndRemove(this List <CustomQueryOptionToken> queryOptions, string queryOptionName)
{
Debug.Assert(queryOptions != null, "queryOptions != null");
Debug.Assert(queryOptionName == null || queryOptionName.Length > 0, "queryOptionName == null || queryOptionName.Length > 0");
CustomQueryOptionToken option = null;
for (int i = 0; i < queryOptions.Count; ++i)
{
if (queryOptions[i].Name == queryOptionName)
{
if (option == null)
{
option = queryOptions[i];
}
else
{
throw new ODataException(Strings.QueryOptionUtils_QueryParameterMustBeSpecifiedOnce(queryOptionName));
}
queryOptions.RemoveAt(i);
i--;
}
}
return(option == null ? null : option.Value);
}
/// <summary>
/// Returns a query option value by its name from the <paramref name="queryOptions"/> collection.
/// </summary>
/// <param name="queryOptions">The collection of query options.</param>
/// <param name="queryOptionName">The name of the query option to get.</param>
/// <returns>The value of the query option or null if no such query option exists.</returns>
internal static string GetQueryOptionValue(this List <CustomQueryOptionToken> queryOptions, string queryOptionName)
{
Debug.Assert(queryOptions != null, "queryOptions != null");
Debug.Assert(queryOptionName == null || queryOptionName.Length > 0, "queryOptionName == null || queryOptionName.Length > 0");
CustomQueryOptionToken option = null;
foreach (var queryOption in queryOptions)
{
if (queryOption.Name == queryOptionName)
{
if (option == null)
{
option = queryOption;
}
else
{
throw new ODataException(Strings.QueryOptionUtils_QueryParameterMustBeSpecifiedOnce(queryOptionName));
}
}
}
return(option == null ? null : option.Value);
}
/// <summary>
/// Visits a CustomQueryOptionToken
/// </summary>
/// <param name="tokenIn">The CustomQueryOptionToken to bind</param>
/// <returns>A CustomQueryOptionNode bound to this CustomQueryOptionToken</returns>
public virtual T Visit(CustomQueryOptionToken tokenIn)
{
throw new NotImplementedException();
}