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

Mon Apr 6 14:51:22 EDT 2009

Odd rule in DRL.g: lhs_not_binding
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                 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: Mark Proctor
            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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