final boolean allowVisitChildren(@NotNull VirtualFile file) {
if (!file.is(VFileProperty.SYMLINK)) {
return true;
}
if (!myFollowSymLinks || VfsUtilCore.isInvalidLink(file)) {
return false;
}
VirtualFile target = file.getCanonicalFile();
List<VirtualFile> links = myVisitedTargets.get(target);
if (links == null) {
myVisitedTargets.put(target, ContainerUtil.newSmartList(file));
return true;
}
boolean hasLoop = false;
for (VirtualFile link : links) {
if (VfsUtilCore.isAncestor(link, file, true)) {
hasLoop = true;
break;
}
}
links.add(file);
return !hasLoop;
}
