public PrgState Execute(PrgState p)
{
try
{
this.Containsp(p);
StreamReader fs = new StreamReader("read.txt");
FileData f = new FileData(fileName, fs);
int id = IDGenerator.GenerateId();
p.FileTable.Add(id, f);
IMyDictionary <String, int> st = p.SymTable;
if (st.ContainsKey(var_file_id))
{
st.Update(var_file_id, id);
}
else
{
st.Add(var_file_id, id);
}
}
catch (NullReferenceException e)
{
Console.WriteLine(e.StackTrace);
}
return(p);
}
public override int Eval(IMyDictionary <String, int> sym)
{
if (sym.ContainsKey(id))
{
int v;
sym.TryGetValue(id, out v);
return(v);
}
else
{
throw new Exception("The element does not exist in the symbol table");
}
}
