675     private static TypeElement topDeclaringType(Element element) {
 676         Element enclosing = element.getEnclosingElement();
 677         if (enclosing == null || enclosing.getKind() == ElementKind.PACKAGE) {
 678             assert element.getKind() == ElementKind.CLASS || element.getKind() == ElementKind.INTERFACE;
 679             return (TypeElement) element;
 680         }
 681         return topDeclaringType(enclosing);
 682     }
 683 
 684     /**
 685      * The element currently being processed.
 686      */
 687     private Element currentElement;
 688 
 689     /**
 690      * The current processing round.
 691      */
 692     private RoundEnvironment currentRound;
 693 
 694     @Override
 695     public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
 696         if (roundEnv.processingOver()) {
 697             return true;
 698         }
 699 
 700         logMessage("Starting round %s\n", roundEnv);
 701 
 702         TypeElement matchRulesTypeElement = getTypeElement(MATCH_RULES_CLASS_NAME);
 703         TypeElement matchRuleTypeElement = getTypeElement(MATCH_RULE_CLASS_NAME);
 704 
 705         TypeMirror matchRulesTypeMirror = matchRulesTypeElement.asType();
 706         TypeMirror matchRuleTypeMirror = matchRuleTypeElement.asType();
 707 
 708         TypeElement matchableNodeTypeElement = getTypeElement(MATCHABLE_NODE_CLASS_NAME);
 709         TypeElement matchableNodesTypeElement = getTypeElement(MATCHABLE_NODES_CLASS_NAME);
 710 
 711         currentRound = roundEnv;
 712         try {
 713             for (Element element : roundEnv.getElementsAnnotatedWith(matchableNodeTypeElement)) {
 714                 currentElement = element;
 715                 logMessage("%s\n", element);

 675     private static TypeElement topDeclaringType(Element element) {
 676         Element enclosing = element.getEnclosingElement();
 677         if (enclosing == null || enclosing.getKind() == ElementKind.PACKAGE) {
 678             assert element.getKind() == ElementKind.CLASS || element.getKind() == ElementKind.INTERFACE;
 679             return (TypeElement) element;
 680         }
 681         return topDeclaringType(enclosing);
 682     }
 683 
 684     /**
 685      * The element currently being processed.
 686      */
 687     private Element currentElement;
 688 
 689     /**
 690      * The current processing round.
 691      */
 692     private RoundEnvironment currentRound;
 693 
 694     @Override
 695     public boolean doProcess(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
 696         if (roundEnv.processingOver()) {
 697             return true;
 698         }
 699 
 700         logMessage("Starting round %s\n", roundEnv);
 701 
 702         TypeElement matchRulesTypeElement = getTypeElement(MATCH_RULES_CLASS_NAME);
 703         TypeElement matchRuleTypeElement = getTypeElement(MATCH_RULE_CLASS_NAME);
 704 
 705         TypeMirror matchRulesTypeMirror = matchRulesTypeElement.asType();
 706         TypeMirror matchRuleTypeMirror = matchRuleTypeElement.asType();
 707 
 708         TypeElement matchableNodeTypeElement = getTypeElement(MATCHABLE_NODE_CLASS_NAME);
 709         TypeElement matchableNodesTypeElement = getTypeElement(MATCHABLE_NODES_CLASS_NAME);
 710 
 711         currentRound = roundEnv;
 712         try {
 713             for (Element element : roundEnv.getElementsAnnotatedWith(matchableNodeTypeElement)) {
 714                 currentElement = element;
 715                 logMessage("%s\n", element);