[jira] [Updated] (LUCENE-6418) SpanNot sometimes forgets to call matches() on excl approximation

["Robert Muir (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LUCENE-6418?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Robert Muir updated LUCENE-6418:
--------------------------------
    Summary: SpanNot sometimes forgets to call matches() on excl approximation  (was: NearSpans[Payload]Ordered sometimes returns -1 for nextStartPosition())

> SpanNot sometimes forgets to call matches() on excl approximation
> -----------------------------------------------------------------
>
>                 Key: LUCENE-6418
>                 URL: https://issues.apache.org/jira/browse/LUCENE-6418
>             Project: Lucene - Core
>          Issue Type: Bug
>            Reporter: Robert Muir
>             Fix For: Trunk, 5.2
>
>         Attachments: LUCENE-6418_test.patch
>
>
> It happens in both impls, so I think the problem is in NearSpansPayloadOrdered. Maybe atFirstInCurrentDoc gets set without matchStart getting set?
> Can be triggered more generally in tests like this:
> {code}
>   @Override
>   public int nextStartPosition() throws IOException {
>     if (atFirstInCurrentDoc) {
>       atFirstInCurrentDoc = false;
>       assert matchStart >= 0; // add this assert
>       return matchStart;
>     }
> {code}



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