public SQLiteBinaryExpression(SQLiteExpression left, SQLiteOperator op, SQLiteExpression right)
{
if (left.GetType().FullName == "SQLiteParser.SQLiteExpression")
{
System.Diagnostics.Debugger.Break();
}
_left = left;
_op = op;
_right = right;
}
private bool IsEqualityOperator(SQLiteOperator op)
{
switch (op)
{
case SQLiteOperator.Lt:
case SQLiteOperator.Gt:
case SQLiteOperator.Ge:
case SQLiteOperator.Le:
case SQLiteOperator.Eq:
case SQLiteOperator.Ne:
return(true);
default:
return(false);
} // switch
}
public SQLiteUnaryExpression(SQLiteOperator op, SQLiteExpression expr)
{
_op = op;
_expr = expr;
}
public static string GetOperatorString(SQLiteOperator op)
{
switch (op)
{
case SQLiteOperator.And:
return("AND");
case SQLiteOperator.Or:
return("OR");
case SQLiteOperator.Lt:
return("<");
case SQLiteOperator.Gt:
return(">");
case SQLiteOperator.Ge:
return(">=");
case SQLiteOperator.Le:
return("<=");
case SQLiteOperator.Eq:
return("=");
case SQLiteOperator.Ne:
return("<>");
case SQLiteOperator.BitAnd:
return("&");
case SQLiteOperator.BitOr:
return("|");
case SQLiteOperator.Lshift:
return("<<");
case SQLiteOperator.Rshift:
return(">>");
case SQLiteOperator.Plus:
return("+");
case SQLiteOperator.Minus:
return("-");
case SQLiteOperator.Star:
return("*");
case SQLiteOperator.Slash:
return("/");
case SQLiteOperator.Rem:
return("%");
case SQLiteOperator.Concat:
return("||");
case SQLiteOperator.IsNull:
return("ISNULL");
case SQLiteOperator.NotNull:
return("NOTNULL");
case SQLiteOperator.Is_Null:
return("IS NULL");
case SQLiteOperator.Not_Null:
return("NOT NULL");
case SQLiteOperator.Is_Not_Null:
return("IS NOT NULL");
case SQLiteOperator.Not:
return("NOT");
case SQLiteOperator.BitNot:
return("~");
default:
throw new ArgumentException("Illegal sqlite operator [" + op.ToString() + "]");
} // switch
}
