/// <summary>
/// Moves <i>n</i> items onto the stack (popss them off the substack and pushes them onto the stack).
/// Returns the actual number of items moved from the Substack onto the main stack
/// </summary>
public int MoveFromSubstack(int n)
{
int x;
for (x = 0; x < n; x++)
{
// is the substack empty?
if (OnSubstack == 0)
{
break; // uh oh
}
// Remove one from stack
var obj = Substack[--OnSubstack];
// Double stack if necessary
if (OnStack == Stack.Length)
{
var newstack = new ADFContext[Stack.Length * 2];
Array.Copy(Stack, 0, newstack, 0, Stack.Length);
Stack = newstack;
}
// Add to stack
Stack[OnStack++] = obj;
}
return(x);
}
/// <summary>
/// Pops off <i>n</i> items from the stack, if possible. Returns the number of items actually popped off.
/// </summary>
public int Pop(int n)
{
int x;
for (x = 0; x < n; x++)
{
// Anything left on the stack?
if (OnStack == 0)
{
break;
}
// Remove one from stack
var obj = Stack[--OnStack];
// Double reserve if necessary
if (InReserve == Reserve.Length)
{
var newreserve = new ADFContext[Reserve.Length * 2];
Array.Copy(Reserve, 0, newreserve, 0, Reserve.Length);
Reserve = newreserve;
}
// Add to reserve
Reserve[InReserve++] = obj;
}
return(x);
}
public virtual void Setup(IEvolutionState state, IParameter paramBase)
{
// load our prototype
var p = paramBase.Push(P_CONTEXT);
var d = DefaultBase.Push(P_CONTEXT);
ContextProto = (ADFContext)(state.Parameters.GetInstanceForParameterEq(p, d, typeof(ADFContext)));
ContextProto.Setup(state, p);
}
/// <summary>
/// Pushes an ADFContext onto the main stack. The best way to get an
/// ADFContext to push onto the stack is with get(). Returns obj.
/// </summary>
public ADFContext Push(ADFContext obj)
{
// Double stack if necessary
if (OnStack == Stack.Length)
{
var newstack = new ADFContext[Stack.Length * 2];
Array.Copy(Stack, 0, newstack, 0, Stack.Length);
Stack = newstack;
}
// Add to stack
Stack[OnStack++] = obj;
// return it
return(obj);
}