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https://issues.apache.org/jira/browse/GROOVY-10473?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eric Milles updated GROOVY-10473:
---------------------------------
    Description: 
Groovy 3 and 4 added some {{Stream}} extension methods like {{plus}}, 
{{toList}} and {{toArray}}.  And some default type conversions like {{String[] 
array = stream;}}.  This could be taken further by having spread-dot and 
subscript support:
{code:groovy}
stream*.thing // --> stream.map(it -> it.thing).toList()
stream[1] // --> stream.skip(1).findFirst().orElse(null)
stream[1..10] // --> stream.skip(1).limit(10-1).toList()
// consider negative indexes and reverse ranges
{code}

Also, {{forEachPair}} and {{zip}} extension methods would be useful for 
processing corresponding streams.

  was:
Groovy 3 and 4 added some {{Stream}} extension methods like {{plus}}, 
{{toList}} and {{toArray}}.  And some default type conversions like {{String[] 
array = stream;}}.  This could be taken further by having spread-dot and 
subscript support:
{code:groovy}
stream*.thing // --> stream.map(it -> it.thing).toList()
stream[1] // --> stream.skip(1).findFirst().orElse(null)
stream[1..10] // --> stream.skip(1).limit(10-1).toList()
// consider negative indexes and reverse ranges
{code}

Also, {{forEachPair}} and {{zip}} extension methods would be useful for 
processing parallel streams.


> Extend streams support to spread and subscript
> ----------------------------------------------
>
>                 Key: GROOVY-10473
>                 URL: https://issues.apache.org/jira/browse/GROOVY-10473
>             Project: Groovy
>          Issue Type: Improvement
>            Reporter: Eric Milles
>            Priority: Major
>
> Groovy 3 and 4 added some {{Stream}} extension methods like {{plus}}, 
> {{toList}} and {{toArray}}.  And some default type conversions like 
> {{String[] array = stream;}}.  This could be taken further by having 
> spread-dot and subscript support:
> {code:groovy}
> stream*.thing // --> stream.map(it -> it.thing).toList()
> stream[1] // --> stream.skip(1).findFirst().orElse(null)
> stream[1..10] // --> stream.skip(1).limit(10-1).toList()
> // consider negative indexes and reverse ranges
> {code}
> Also, {{forEachPair}} and {{zip}} extension methods would be useful for 
> processing corresponding streams.



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