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https://issues.apache.org/jira/browse/GROOVY-10755?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eric Milles updated GROOVY-10755:
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Component/s: parser-antlr4
> Ternary returning a list gets parsed improperly
> -----------------------------------------------
>
> Key: GROOVY-10755
> URL: https://issues.apache.org/jira/browse/GROOVY-10755
> Project: Groovy
> Issue Type: Bug
> Components: parser, parser-antlr4
> Affects Versions: 4.0.4
> Reporter: OC
> Priority: Minor
>
> Another problem with ternary operator, this time almost surely a clash with
> the safe index operator:
> {code:java}
> 2034 ocs /tmp> >q.groovy
> 1>2?[1]:0
> 2035 ocs /tmp> /usr/local/groovy-4.0.4/bin/groovy q
> org.codehaus.groovy.control.MultipleCompilationErrorsException: startup
> failed:
> /private/tmp/q.groovy: 1: Unexpected input: ':' @ line 1, column 8.
> 1>2?[1]:0
> ^
> 1 error
> 2036 ocs /tmp>
> {code}
> Most probably affects 4 from the beginning. Used to work properly in previous
> versions (including Groovy 3 which supported the safe index operator all
> right).
> The issue can be fixed easily e.g. inserting a space betwixt ? and [, thus
> the minor priority. Nevertheless it is somewhat inconvenient since the
> operation is pretty common and frequently occurs in the current codebase,
> which worked under 3 all right. Also, it is sort of difficult to solve it
> (semi-)automatically, for it is not entirely trivial to distinguish real safe
> indices from ternaries automatically without a full-fledged parser :(
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