private Operator? GetOperator(Token token)
{
var identifier = token as IdentifierToken;
if (identifier != null)
{
switch (identifier.Identifier)
{
case "and": return Operator.And;
case "or": return Operator.Or;
case "eq": return Operator.Eq;
case "ne": return Operator.Ne;
case "lt": return Operator.Lt;
case "le": return Operator.Le;
case "gt": return Operator.Gt;
case "ge": return Operator.Ge;
case "add": return Operator.Add;
case "sub": return Operator.Sub;
case "mul": return Operator.Mul;
case "div": return Operator.Div;
case "mod": return Operator.Mod;
case "not": return Operator.Not;
}
}
return null;
}
protected OrderByDirection? GetOrderByDirection(Token token)
{
var identifier = token as IdentifierToken;
if (identifier != null)
{
switch (identifier.Identifier)
{
case "asc": return OrderByDirection.Ascending;
case "desc": return OrderByDirection.Descending;
}
}
return null;
}
protected void Expect(Token token)
{
Require.NotNull(token, "token");
if (AtEnd || !Equals(Current, token))
throw new ODataException(String.Format(ErrorMessages.Parser_ExpectedToken, token));
MoveNext();
}