public PrgState <T> Execute <T>(PrgState <T> state)
{
MyIStack <T> stk = state.GetStk();
stk.Push((T)mSecond);
stk.Push((T)mFirst);
return(null);
}
public PrgState Execute(PrgState state)
{
MyIStack <IStmt> stk = state.GetStk();
stk.Push(this.snd);
stk.Push(this.first);
return(null);
}
public PrgState Execute(PrgState state)
{
MyIStack <IStmt> stk = state.GetStk();
IStmt thenStmt = this.thenS;
IStmt elseStmt = this.elseS;
if (exp.Eval(state.GetSymTable(), state.GetHeap()) != 0)
{
stk.Push(thenStmt);
}
else
{
stk.Push(elseStmt);
}
return(null);
}
public PrgState Execute(PrgState state)
{
MyIStack <IStmt> stk = state.GetStk();
IStmt[] s = this.stmt;
int k = exp.Eval(state.GetSymTable(), state.GetHeap());
while (k > 0)
{
for (int i = 0; i < s.Length; i++)
{
stk.Push(s[i]);
}
k--;
}
return(null);
}