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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (GROOVY-7834) Calling hashCode on IntRange iterates through all elements in the range.
Date Fri, 19 Aug 2016 11:45:20 GMT

    [ https://issues.apache.org/jira/browse/GROOVY-7834?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15428041#comment-15428041
] 

ASF GitHub Bot commented on GROOVY-7834:
----------------------------------------

GitHub user upadhyayap opened a pull request:

    https://github.com/apache/groovy/pull/388

    Calculating hashcode of IntRange by pairing function

    https://issues.apache.org/jira/browse/GROOVY-7834?jql=project%20%3D%20GROOVY%20AND%20id%20%3D%20GROOVY-7834

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/upadhyayap/incubator-groovy GROOVY-7834

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/groovy/pull/388.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #388
    
----
commit da39cc1fda39f61424471cff23df3f13867ab9d3
Author: Anand upadhyay <anand.upadhyay.consultant@nielsen.com>
Date:   2016-08-19T11:43:08Z

    Calculating hashcode of IntRange by pairing function

----


> Calling hashCode on IntRange iterates through all elements in the range.
> ------------------------------------------------------------------------
>
>                 Key: GROOVY-7834
>                 URL: https://issues.apache.org/jira/browse/GROOVY-7834
>             Project: Groovy
>          Issue Type: Bug
>            Reporter: howard zhang
>
> {code}
> new IntRange(0, Integer.MAX_VALUE-1).hashCode()
> {code}
> The above code takes a few seconds to complete.
> I believe the hashCode method is not overridden and it defaults to AbstractList which
iterates through all elements.  I don't think this should be the default behavior.
> http://grepcode.com/file_/repository.grepcode.com/java/root/jdk/openjdk/6-b14/java/util/AbstractList.java/?v=source



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