[jboss-jira] [JBoss JIRA] Updated: (JBRULES-2051) Odd rule in DRL.g: lhs_not_binding

[Mark Proctor (JIRA)]

     [ https://jira.jboss.org/jira/browse/JBRULES-2051?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mark Proctor updated JBRULES-2051:
----------------------------------

    Assignee: Edson Tirelli  (was: Mark Proctor)


> Odd rule in DRL.g: lhs_not_binding
> ----------------------------------
>
>                 Key: JBRULES-2051
>                 URL: https://jira.jboss.org/jira/browse/JBRULES-2051
>             Project: JBoss Drools
>          Issue Type: Quality Risk
>      Security Level: Public(Everyone can see) 
>          Components: drools-compiler (expert)
>    Affects Versions: 5.0.0.CR1
>         Environment: any
>            Reporter: Wolfgang Laun
>            Assignee: Edson Tirelli
>            Priority: Minor
>
> This NT expands into
>    not_key fact_binding =>
>    'not' label ( fact | '(' fact_binding_expression ')' )
> Now, fact_binding_expression is just  fact { ('or'|'||') fact }
> And the NT fact derives into fact_type '(' [ constraints ] ')'
> So, what would the binding variable in NT label ever be bound to?
> I think that the syntax shouldn't contain the lhs_not_binding rule at all.

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