private SqlObject Relational(SqlExpressionType opType, SqlObject a, SqlObject b)
{
switch (opType)
{
case SqlExpressionType.Equal:
return(a.Equal(b));
case SqlExpressionType.NotEqual:
return(a.NotEqual(b));
case SqlExpressionType.GreaterThan:
return(a.GreaterThan(b));
case SqlExpressionType.LessThan:
return(a.LessThan(b));
case SqlExpressionType.GreaterThanOrEqual:
return(a.GreaterThanOrEqual(b));
case SqlExpressionType.LessThanOrEqual:
return(a.LessOrEqualThan(b));
case SqlExpressionType.Is:
return(a.Is(b));
case SqlExpressionType.IsNot:
return(a.IsNot(b));
default:
return(SqlObject.Unknown);
}
}
private SqlObject ReduceBinary(SqlObject left, SqlObject right)
{
switch (ExpressionType)
{
case SqlExpressionType.Add:
return(left.Add(right));
case SqlExpressionType.Subtract:
return(left.Subtract(right));
case SqlExpressionType.Multiply:
return(left.Multiply(right));
case SqlExpressionType.Divide:
return(left.Divide(right));
case SqlExpressionType.Modulo:
return(left.Modulo(right));
case SqlExpressionType.GreaterThan:
return(left.GreaterThan(right));
case SqlExpressionType.GreaterThanOrEqual:
return(left.GreaterThanOrEqual(right));
case SqlExpressionType.LessThan:
return(left.LessThan(right));
case SqlExpressionType.LessThanOrEqual:
return(left.LessOrEqualThan(right));
case SqlExpressionType.Equal:
return(left.Equal(right));
case SqlExpressionType.NotEqual:
return(left.NotEqual(right));
case SqlExpressionType.Is:
return(left.Is(right));
case SqlExpressionType.IsNot:
return(left.IsNot(right));
case SqlExpressionType.And:
return(left.And(right));
case SqlExpressionType.Or:
return(left.Or(right));
case SqlExpressionType.XOr:
return(left.XOr(right));
// TODO: ANY and ALL
default:
throw new SqlExpressionException($"The type {ExpressionType} is not a binary expression or is not supported.");
}
}