iterator/continuation_iterator

A ContinuationIterator iterates through a container using continuations. This will generally perform better on larger data structures. The data structure must have an each() iterator (or an equivalent, if the ContinuationIterator is initialized with a different symbol).

class ContinuationIterator < Object

Public Methods

initialize(container, method=:each)

Create a new ContinuationIterator. Once created, elem() will return the first element. Advancing the iterator will move elem() to the next element.

container	the container to be iterated.
method	the iterator method to use.

advance

Advance an iterator to the next element. Returns nil if there are no more elements.

Returns: the next element.

elem

Return the current element

Determine if we have reached the end

Requires