338     }
 339 
 340     public R visitLiteral(LiteralTree node, P p) {
 341         return null;
 342     }
 343 
 344     public R visitPrimitiveType(PrimitiveTypeTree node, P p) {
 345         return null;
 346     }
 347 
 348     public R visitArrayType(ArrayTypeTree node, P p) {
 349         return scan(node.getType(), p);
 350     }
 351 
 352     public R visitParameterizedType(ParameterizedTypeTree node, P p) {
 353         R r = scan(node.getType(), p);
 354         r = scanAndReduce(node.getTypeArguments(), p, r);
 355         return r;
 356     }
 357 
 358     public R visitDisjunctiveType(DisjunctiveTypeTree node, P p) {
 359         return scan(node.getTypeAlternatives(), p);
 360     }
 361 
 362     public R visitTypeParameter(TypeParameterTree node, P p) {
 363         R r = scan(node.getBounds(), p);
 364         return r;
 365     }
 366 
 367     public R visitWildcard(WildcardTree node, P p) {
 368         return scan(node.getBound(), p);
 369     }
 370 
 371     public R visitModifiers(ModifiersTree node, P p) {
 372         return scan(node.getAnnotations(), p);
 373     }
 374 
 375     public R visitAnnotation(AnnotationTree node, P p) {
 376         R r = scan(node.getAnnotationType(), p);
 377         r = scanAndReduce(node.getArguments(), p, r);
 378         return r;

 338     }
 339 
 340     public R visitLiteral(LiteralTree node, P p) {
 341         return null;
 342     }
 343 
 344     public R visitPrimitiveType(PrimitiveTypeTree node, P p) {
 345         return null;
 346     }
 347 
 348     public R visitArrayType(ArrayTypeTree node, P p) {
 349         return scan(node.getType(), p);
 350     }
 351 
 352     public R visitParameterizedType(ParameterizedTypeTree node, P p) {
 353         R r = scan(node.getType(), p);
 354         r = scanAndReduce(node.getTypeArguments(), p, r);
 355         return r;
 356     }
 357 
 358     public R visitUnionType(UnionTypeTree node, P p) {
 359         return scan(node.getTypeAlternatives(), p);
 360     }
 361 
 362     public R visitTypeParameter(TypeParameterTree node, P p) {
 363         R r = scan(node.getBounds(), p);
 364         return r;
 365     }
 366 
 367     public R visitWildcard(WildcardTree node, P p) {
 368         return scan(node.getBound(), p);
 369     }
 370 
 371     public R visitModifiers(ModifiersTree node, P p) {
 372         return scan(node.getAnnotations(), p);
 373     }
 374 
 375     public R visitAnnotation(AnnotationTree node, P p) {
 376         R r = scan(node.getAnnotationType(), p);
 377         r = scanAndReduce(node.getArguments(), p, r);
 378         return r;