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https://issues.apache.org/jira/browse/GROOVY-7629?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Paul King closed GROOVY-7629.
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> ObjectRange methods duplicate functionality and should not rely on size()
> -------------------------------------------------------------------------
>
> Key: GROOVY-7629
> URL: https://issues.apache.org/jira/browse/GROOVY-7629
> Project: Groovy
> Issue Type: Improvement
> Components: groovy-jdk
> Reporter: Thibault Kruse
> Assignee: Paul King
> Priority: Minor
> Fix For: 2.5.0-alpha-1
>
>
> The methods iterator(), step(), get(), size() and subList() all step through
> the range, all having their own stepping implementation, which makes the
> class more complex than it needs to be.
> Also, get(), subList() and iterator() rely on method size(), which in
> non-numeric cases does a brute-force iteration over all elements. This causes
> an unnecessary performance overhead in several cases (even if the value of
> size() is cached after first computation). The overhead may be arbitrarily
> large, and in cases the size() exceed MAX_INTEGER, the reliance leads to
> errors.
> (Also see GROOVY-2972, GROOVY-5426).
> I suggest unifying the stepping semantics and not relying on size(). PR will
> follow.
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