private QueryExpression GetOperator(BinaryOpType type, IExpression expression)
{
var lhs = this;
var rhs = Misc.TryCast <IExpression, QueryExpression>(expression);
return(new QueryBinaryExpression(lhs, rhs, type));
}
public static String ConvertOpType(BinaryOpType t)
{
switch (t)
{
case BinaryOpType.Divides: return("/");
case BinaryOpType.Multiplies: return("*");
case BinaryOpType.Minus: return("-");
case BinaryOpType.Plus: return("+");
case BinaryOpType.And: return("and");
case BinaryOpType.Or: return("or");
case BinaryOpType.Not: return("not");
case BinaryOpType.Equals: return("==");
case BinaryOpType.Greater: return(">");
case BinaryOpType.GreaterOrEquals: return(">=");
case BinaryOpType.Less: return("<");
case BinaryOpType.LessOrEquals: return("<=");
case BinaryOpType.UnEquals: return("!=");
default:
return("");
}
}
public QueryBinaryExpression(QueryExpression lhs, QueryExpression rhs, BinaryOpType type)
{
_lhs = lhs;
_rhs = rhs;
_type = type;
}
public BinaryOpNode(ExprNode left, BinaryOpType opType, ExprNode right)
{
LeftNode = left;
RightNode = right;
OpType = opType;
}
