public string Visit(NegateOpNode visited)
{
var sb = new StringBuilder();
sb.Append("(");
sb.Append("-");
sb.Append(visited.Son.Accept(this));
sb.Append(")");
return(sb.ToString());
}
public string Visit(NegateOpNode visited)
{
var sb = new StringBuilder();
sb.Append("-");
int thisPriority = visited.Accept(priorityGetter);
int sonPriority = visited.Son.Accept(priorityGetter);
//everything except value nodes needs parentheses
if (sonPriority < thisPriority)
{
sb.Append("(");
}
sb.Append(visited.Son.Accept(this));
if (sonPriority < thisPriority)
{
sb.Append(")");
}
return(sb.ToString());
}
public int Visit(NegateOpNode visited)
{
return(10);
}
public double Visit(NegateOpNode caller)
{
double son = caller.Son.Accept(this);
return(-son);
}
public int Visit(NegateOpNode caller)
{
int son = caller.Son.Accept(this);
return(checked (-son));
}