[jboss-jira] [JBoss JIRA] Closed: (JBRULES-554) False "Duplicate declaration for variable" error when doing "Match( homeTeam == $team) || Match( awayTeam == $team)"

[Edson Tirelli (JIRA)]

     [ http://jira.jboss.com/jira/browse/JBRULES-554?page=all ]

Edson Tirelli closed JBRULES-554.
---------------------------------

    Fix Version/s: 3.1-m2
       Resolution: Done

Improved variable scope resolution for logical branches and commited to trunk on revision #9676. Test cases added.

$ svn log -r 9676 -v
------------------------------------------------------------------------
r9676 | tirelli | 2007-02-21 12:08:42 -0300 (Wed, 21 Feb 2007) | 1 line
Changed paths:
   M /labs/jbossrules/trunk/drools-compiler/src/main/java/org/drools/lang/descr/AndDescr.java
   M /labs/jbossrules/trunk/drools-compiler/src/main/java/org/drools/semantics/java/builder/ColumnBuilder.java
   M /labs/jbossrules/trunk/drools-compiler/src/test/java/org/drools/integrationtests/IntegrationCases.java
   M /labs/jbossrules/trunk/drools-compiler/src/test/java/org/drools/lang/RuleParserTest.java
   M /labs/jbossrules/trunk/drools-compiler/src/test/java/org/drools/lang/descr/AndDescrTest.java
   A /labs/jbossrules/trunk/drools-compiler/src/test/resources/org/drools/integrationtests/test_duplicateVariableBinding.drl
   A /labs/jbossrules/trunk/drools-compiler/src/test/resources/org/drools/integrationtests/test_duplicateVariableBindingError.drl
   D /labs/jbossrules/trunk/drools-compiler/src/test/resources/org/drools/lang/multiple_bindings.drl
   D /labs/jbossrules/trunk/drools-compiler/src/test/resources/org/drools/lang/multiple_bindings_more.drl
   M /labs/jbossrules/trunk/drools-core/src/main/java/org/drools/spi/DeclarationScopeResolver.java

JBRULES-554: fixing variable scope resolution in the rule parser/builder
------------------------------------------------------------------------

> False "Duplicate declaration for variable" error when doing "Match( homeTeam == $team) || Match( awayTeam == $team)"
> --------------------------------------------------------------------------------------------------------------------
>
>                 Key: JBRULES-554
>                 URL: http://jira.jboss.com/jira/browse/JBRULES-554
>             Project: JBoss Rules
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: Drl Parser/Builder
>    Affects Versions: 3.0.4
>            Reporter: Geoffrey De Smet
>         Assigned To: Edson Tirelli
>            Priority: Minor
>             Fix For: 3.1-m2
>
>         Attachments: JBRULES-554-testcase-branch-3.0.x.patch
>
>
> [Maybe assign to Edson, he asked me to open in mailing list thread "Yet another or question"]
> On the 3.0.x branch (update from this time) when declaring this rule:
> query "multipleMatchesPerTeamPerDay"
>     $team : Team();
>     Match( $id : id, homeTeam == $team, $day : day )
>         || Match( $id : id, awayTeam == $team, $day : day );
>     exists Match( id > $id, homeTeam == $team, day == $day )
>         || exists Match(id > $id, awayTeam == $team, day == $day );
> end
> It reports an error:
>   org.drools.rule.InvalidRulePackage: Duplicate declaration for variable '$day' in the rule 'multipleMatchesPerTeamPerDay'
> Testcase patch coming up.

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