public override double generate(SymbolTable table)
{
double l = left.generate(table);
double r = right.generate(table);
switch (ope)
{
case Exp_Operator.DIVI:
if (r == 0)
{
return(0);
}
return(l / r);
case Exp_Operator.MINU:
return(l - r);
case Exp_Operator.MULT:
return(l * r);
case Exp_Operator.PLUS:
return(l + r);
case Exp_Operator.EQUAL:
table.set(left.getID(), r);
return(r);
case Exp_Operator.LESS_THAN:
return(l < r ? 1 : 0);
case Exp_Operator.GREATER_THAN:
return(l > r ? 1 : 0);
case Exp_Operator.IF_EQUAL:
return(l == r ? 1 : 0);
case Exp_Operator.NOT_EQUAL:
return(l != r ? 1 : 0);
case Exp_Operator.LESS_EQUAL_THAN:
return(l <= r ? 1 : 0);
case Exp_Operator.GREATER_EQUAL_THAN:
return(l >= r ? 1 : 0);
default:
LogWriter.WriteErrText("Unknown double operator " + ope.ToString());
break;
}
return(0);
}
public override double generate(SymbolTable table)
{
double d = expression.generate(table);
switch (ope)
{
case Exp_Operator.ABS:
return(Math.Abs(d));
case Exp_Operator.ACOS:
return(scale * Math.Acos(d));
case Exp_Operator.ASIN:
return(scale * Math.Asin(d));
case Exp_Operator.ATAN:
return(scale * Math.Atan(d));
case Exp_Operator.COS:
return(Math.Cos(d / scale));
case Exp_Operator.EXP:
return(Math.Exp(d));
case Exp_Operator.LOG:
return(Math.Log(d));
case Exp_Operator.SIN:
return(Math.Sin(d / scale));
case Exp_Operator.SQRT:
return(Math.Sqrt(d));
case Exp_Operator.TAN:
return(Math.Tan(d / scale));
case Exp_Operator.MINU:
return(-d);
case Exp_Operator.NONE:
return(d);
default:
LogWriter.WriteErrText("Unkown single operator " + ope.ToString());
break;
}
return(0);
}
