public T TakeFromLeft()
{
if (TryTakeEdgeCase(out var returnValue))
{
return(returnValue);
}
var retVal = leftElement.Value;
leftElement = leftElement.RightNeighbor;
return(retVal);
}
public T TakeFromRight()
{
if (TryTakeEdgeCase(out var returnValue))
{
return(returnValue);
}
var retVal = rightElement.Value;
rightElement = rightElement.LeftNeighbor;
return(retVal);
}
public void AddFromRight(T value)
{
var newElement = new PipeElement <T>(value);
if (IsPipeEmpty())
{
leftElement = newElement;
rightElement = newElement;
}
rightElement.RightNeighbor = newElement;
newElement.LeftNeighbor = rightElement;
rightElement = newElement;
}
private bool TryTakeEdgeCase(out T returnValue)
{
if (IsPipeEmpty())
{
throw new InvalidOperationException("Cannot take anymore. Pipe is empty");
}
if (leftElement == rightElement)
{
returnValue = leftElement.Value;
leftElement = null;
rightElement = null;
return(true);
}
returnValue = default(T);
return(false);
}
