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https://issues.apache.org/jira/browse/GROOVY-10666?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eric Milles updated GROOVY-10666:
---------------------------------
Description:
Currently multiple-assignment is implemented using {{getAt(int)}}. For types
that support {{getAt(IntRange)}} it may be more efficient to use that
operation. For cases where {{getAt(int)}} is a terminal operation (aka
streams) it may be the only way to go.
Consider the following:
{code:groovy}
Set<String> set = ['foo','bar','baz']
def (foo, bar, baz) = set // inefficient; requires 3 iterators and 6 calls to
next
Stream<String> stream = ['foo','bar','baz'].stream()
def (foo, bar, baz) = stream // not possible because `getAt(int)` is terminal
{code}
was:
Currently multiple-assignment is implemented using {{getAt(int)}}. For types
that support {{getAt(IntRange)}} it may be more efficient to use that
operation. For cases where {{getAt(int)}} is a terminal operation (aka
streams) it may be the only way to go.
Consider the following:
{code:groovy}
Set<String> set = ['foo','bar','baz']
def (foo, bar, baz) = set // inefficient; requires 3 iterators and 6 calls to
next
Stream<String> = ['foo','bar','baz'].stream()
def (foo, bar, baz) = stream // not possible because `getAt(int)` is terminal
{code}
> Implement multiple-assignment (aka destructuring) via getAt(IntRange) when
> supported
> ------------------------------------------------------------------------------------
>
> Key: GROOVY-10666
> URL: https://issues.apache.org/jira/browse/GROOVY-10666
> Project: Groovy
> Issue Type: Improvement
> Components: groovy-jdk
> Reporter: Eric Milles
> Assignee: Eric Milles
> Priority: Minor
>
> Currently multiple-assignment is implemented using {{getAt(int)}}. For types
> that support {{getAt(IntRange)}} it may be more efficient to use that
> operation. For cases where {{getAt(int)}} is a terminal operation (aka
> streams) it may be the only way to go.
> Consider the following:
> {code:groovy}
> Set<String> set = ['foo','bar','baz']
> def (foo, bar, baz) = set // inefficient; requires 3 iterators and 6 calls to
> next
> Stream<String> stream = ['foo','bar','baz'].stream()
> def (foo, bar, baz) = stream // not possible because `getAt(int)` is terminal
> {code}
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