public static ConstantBaseFilterSubExpression Create(NullExpressionToken token)
{
if (token is null)
{
throw new ArgumentNullException(nameof(token));
}
return(new NullConstantFilterSubExpression());
}
private static List <FilterExpressionToken> ReplaceNullTokens(List <FilterExpressionToken> tokens)
{
List <FilterExpressionToken> retList = tokens.AsEnumerable().ToList();
for (int i = 0; i < retList.Count; i++)
{
if (retList[i] is PrimitiveExpressionToken pet && pet.Token is PropertyToken pt &&
pt.StringValue == "null")
{
retList[i] = new NullExpressionToken(tokens[i].StartIndex);
}
}
return(retList);
}