public override REBase Copy()
{
REExpression _operandL = (OperandLeft != null)? (REExpression)OperandLeft.Copy() : null;
REExpression _operandR = (OperandRight != null)? (REExpression)OperandRight.Copy() : null;
return(new RESmaller(_operandL, _operandR));
}
public override REBase Copy()
{
return(new REAdd(OperandLeft.Copy(), OperandRight.Copy()));
}