public PrgState Execute(PrgState state)
{
IModDictionary <string, int> symbTable = state.SymbTable;
int id = expFileId.Eval(symbTable);
FileData fd = state.FileTable.Get(id);
System.IO.StreamReader reader = fd.Header;
reader.Close();
state.FileTable.Remove(id);
return(state);
}
public PrgState(
IExeStack <IStmt> _exeStack,
IModDictionary <string, int> _symbTable,
IModList <int> _outList,
IFileTable <int, FileData> _fileTable,
IStmt _originalProgram
)
{
this.ExeStack = _exeStack;
this.SymbTable = _symbTable;
this.OutList = _outList;
this.FileTable = _fileTable;
this.OriginalProgram = _originalProgram;
ExeStack.Push(OriginalProgram);
}
public PrgState Execute(PrgState state)
{
IModDictionary <string, int> symbTable = state.SymbTable;
int val = exp.Eval(symbTable);
if (symbTable.Contains(id))
{
symbTable.Update(id, val);
}
else
{
symbTable.Put(id, val);
}
return(state);
}
public PrgState Execute(PrgState state)
{
IModDictionary<string, int> symbTable = state.SymbTable;
IExeStack<IStmt> exeStack = state.ExeStack;
int res = exp.Eval(symbTable);
if (res != 0)
{
exeStack.Push(thenS);
}
else
{
exeStack.Push(elseS);
}
return state;
}
public PrgState Execute(PrgState state)
{
int value;
IModDictionary <string, int> symbTable = state.SymbTable;
//
int id = expFileId.Eval(symbTable);
//
FileData fd = state.FileTable.Get(id);
System.IO.StreamReader reader = fd.Header;
string line = reader.ReadLine();
if (line == null)
{
value = 0;
}
else
{
value = Int32.Parse(line);
System.Console.WriteLine(">>>>>>>>>>>>>>> " + value);
}
if (symbTable.Contains(varName))
{
symbTable.Update(varName, value);
}
else
{
symbTable.Put(varName, value);
}
return(state);
}
public abstract int Eval(IModDictionary <string, int> symbTable);
public override int Eval(IModDictionary <string, int> symbTable)
{
return(number);
}
