[jira] [Updated] (GROOVY-8913) Parrot Parser: partially-parenthesized binary expression parsed as cast and unary plus

["Daniel Sun (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/GROOVY-8913?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Daniel Sun updated GROOVY-8913:
-------------------------------
    Fix Version/s:     (was: 3.0.0-beta-1)

> Parrot Parser: partially-parenthesized binary expression parsed as cast and unary plus
> --------------------------------------------------------------------------------------
>
>                 Key: GROOVY-8913
>                 URL: https://issues.apache.org/jira/browse/GROOVY-8913
>             Project: Groovy
>          Issue Type: Bug
>          Components: parser-antlr4
>    Affects Versions: 2.6.0-alpha-4
>            Reporter: Eric Milles
>            Assignee: Daniel Sun
>            Priority: Major
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> Groovy 2.6 (and possibly/probably 3.0) is parsing this expression differently from 2.5:
> {code:groovy}
> def x = (a.b) + c()
> {code}
> In Groovy 2.5, this is a DeclarationExpression with a VariableExpression for the left expression and a BinaryExpression (with PLUS operator) for the right expression.  Parrot Parser is seeing the right expression as a CastExpression with a UnaryPlusExpression.



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