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Posted to notifications@groovy.apache.org by "Eric Milles (JIRA)" <ji...@apache.org> on 2018/12/06 22:45:00 UTC

[jira] [Created] (GROOVY-8913) Parrot Parser: binary expression interpreted as cast and unary plus

Eric Milles created GROOVY-8913:
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             Summary: Parrot Parser: binary expression interpreted 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
            Reporter: Eric Milles


Groovy 2.6 (and possible 3.0) is parsing this expression differently:
{code:groovy}
def x = (a.b) + c()
{code}

In Groovy 2.4, 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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