public override IValue Evaluate()
{
var left = _left.Evaluate();
var right = _right.Evaluate();
if (left == null && right == null)
{
return null;
}
else if (left == null)
{
return right;
}
else if (right == null)
{
return left;
}
else if (left.ValueType == ValueType.Bool && right.ValueType == ValueType.Bool)
{
var leftNumber = Convert.ToInt64(left.AsDecimal);
var rightNumber = Convert.ToInt64(right.AsDecimal);
return new BoolValue(new DecimalValue(leftNumber | rightNumber).AsBool);
}
else
{
var leftNumber = Convert.ToInt64(left.AsDecimal);
var rightNumber = Convert.ToInt64(right.AsDecimal);
return new DecimalValue(leftNumber | rightNumber);
}
}
}