/// <summary>
/// Bind a top option
/// </summary>
/// <param name="syntax">a syntax tree containing the top option to bind</param>
/// <param name="rangeVariable">the range variable that iterates over the top level collection</param>
/// <param name="path">the top level path</param>
/// <returns>a nullable long representing this top option</returns>
public static long?BindTop(SyntacticTree syntax, RangeVariable rangeVariable, ODataPath path)
{
if (syntax.Top != null)
{
if (rangeVariable == null || !path.EdmType().IsEntityCollection())
{
throw new ODataException(ODataErrorStrings.MetadataBinder_QueryOptionNotApplicable("$top"));
}
return(MetadataBinder.ProcessTop(syntax.Top));
}
return(null);
}
