lhs_return dt1 = null;

        lhs_return dt2 = null;

        from_elements_return fe = null;

    // $ANTLR start lhs_pattern

    // src/main/resources/org/drools/lang/DescrBuilderTree.g:306:1: lhs_pattern returns [BaseDescr baseDescr] : ^( VT_PATTERN fe= fact_expression ) (oc= over_clause )? ;

    public final BaseDescr lhs_pattern() throws RecognitionException {

        fact_expression_return fe = null;

        List oc = null;

        DroolsTree i=null;

        DroolsTree f=null;

        DroolsTree b=null;

        DroolsTree n=null;

        fact_expression_return fe = null;

        fact_expression_return fact = null;

        fact_expression_return left = null;

        fact_expression_return right = null;

        FieldConstraintDescr field = null;

          List<BaseDescr> exprList = new LinkedList<BaseDescr>();

    // src/main/resources/org/drools/lang/DescrBuilderTree.g:392:1: field_element returns [FieldConstraintDescr element] : ^( VT_ACCESSOR_PATH (ae= accessor_element )+ ) ;

    public final FieldConstraintDescr field_element() throws RecognitionException {

        FieldConstraintDescr element = null;

          List<BaseDescr> aeList = new LinkedList<BaseDescr>();

    // $ANTLR start accessor_element

    // src/main/resources/org/drools/lang/DescrBuilderTree.g:399:1: accessor_element returns [BaseDescr element] : ^( VT_ACCESSOR_ELEMENT id= ID (sc+= VT_SQUARE_CHUNK )* ) ;

    public final BaseDescr accessor_element() throws RecognitionException {

        DroolsTree id=null;

        DroolsTree sc=null;

        List list_sc=null;

    // $ANTLR start pattern_type

    // src/main/resources/org/drools/lang/DescrBuilderTree.g:404:1: pattern_type returns [BaseDescr dataType] : ^( VT_PATTERN_TYPE (idList+= ID )+ ( LEFT_SQUARE rightList+= RIGHT_SQUARE )* ) ;

    public final BaseDescr pattern_type() throws RecognitionException {

        DroolsTree idList=null;

        DroolsTree rightList=null;

        List list_idList=null;

        List list_rightList=null;

    // $ANTLR start data_type

    // src/main/resources/org/drools/lang/DescrBuilderTree.g:409:1: data_type returns [BaseDescr dataType] : ^( VT_DATA_TYPE (idList+= ID )+ ( LEFT_SQUARE rightList+= RIGHT_SQUARE )* ) ;

    public final BaseDescr data_type() throws RecognitionException {

        DroolsTree idList=null;

        DroolsTree rightList=null;

        List list_idList=null;

        List list_rightList=null;

                                 invoker );

            }

            final String text = (String) context.getInvokers().get( className );

            addClassCompileTask( className,

                                 descr,

                                 text,

                                 this.src,

                                 new RuleInvokerErrorHandler( descr,

                                 invoker );

            }

            final String text = (String) context.getInvokers().get( className );

            addClassCompileTask( className,

                                 descr,

                                 text,

                                 this.src,

                                 new ProcessInvokerErrorHandler( processDescr,

                        final ExtensibleXmlParser parser) throws SAXException {

        parser.startElementBuilder( localName,

                                    attrs );

    }