OC created GROOVY-10755:
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Summary: 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
Affects Versions: 4.0.4
Reporter: OC
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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