@NotNull
private Set<VirtualFile> getReadOnlyUsagesFiles() {
Set<Usage> usages = getReadOnlyUsages();
Set<VirtualFile> result = new THashSet<VirtualFile>();
for (Usage usage : usages) {
if (usage instanceof UsageInFile) {
UsageInFile usageInFile = (UsageInFile) usage;
VirtualFile file = usageInFile.getFile();
if (file != null) result.add(file);
}
if (usage instanceof UsageInFiles) {
UsageInFiles usageInFiles = (UsageInFiles) usage;
ContainerUtil.addAll(result, usageInFiles.getFiles());
}
}
for (UsageTarget target : myTargets) {
VirtualFile[] files = target.getFiles();
if (files == null) continue;
ContainerUtil.addAll(result, files);
}
return result;
}
