public int SumOperation(Expression l, Expression r)
{
return l.eval() + r.eval();
}
public int MultOperation(Expression l, Expression r)
{
return l.eval() * r.eval();
}
public int DiffOperation(Expression l, Expression r)
{
return l.eval() - r.eval();
}
public int DivOperation(Expression l, Expression r)
{
return l.eval() / r.eval();
}
public BinaryExpression(Token t, Expression left, Expression right)
{
base.token = t;
Left = left;
Right = right;
}
