Comments (3)
@Wixred just to be clear, when indexing in to a stack, would you expect stack[0]
to return the same element that would be returned by stack.Peek()
(the most-recently-added element) and stack[stack.Count - 1]
(or stack[^1]
) to return the first element that was added to the stack?
Also, if we're adding an Insert method, should there also be a RemoveAt method and an IndexOf method? Should we just go ahead and implement all of ICollection<T>
? Where do we draw the line?
from collections.pooled.
The thought was the index is a simple wrapper around the underlying array indexer. But you're right, where do you draw the line with this functionality.
from collections.pooled.
I'm not necessarily opposed to making the class indexable, I'm just not sure of the semantics. Internally items are stored with the most-recently-added item as the last item in the internal array, and calling Peek/Pop returns the last item (but in Stack semantics, it's the first item). So the actual implementation for the indexer would need to return the value at something like Count - i
to give you what I think is probably the most intuitive output.
I'm a little less sanguine about the Insert method. You've got the same "what does the index value actually mean" issue, plus the "where do you draw the line" issue, and I'm not sure if the added functionality would be worth it.
from collections.pooled.
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from collections.pooled.