@Nullable
public static PsiElement getOriginalElement(PsiClass clazz, PsiFile containingFile) {
VirtualFile vFile = containingFile.getVirtualFile();
final JavaPsiFacade facade = JavaPsiFacade.getInstance(clazz.getProject());
final ProjectFileIndex idx = ProjectRootManager.getInstance(facade.getProject()).getFileIndex();
if (vFile == null || !idx.isInLibrarySource(vFile)) return clazz;
final String qName = clazz.getQualifiedName();
if (qName == null) return null;
final List<OrderEntry> orderEntries = idx.getOrderEntriesForFile(vFile);
PsiClass original =
facade.findClass(
qName,
new GlobalSearchScope(facade.getProject()) {
public int compare(VirtualFile file1, VirtualFile file2) {
return 0;
}
public boolean contains(VirtualFile file) {
// order for file and vFile has non empty intersection.
List<OrderEntry> entries = idx.getOrderEntriesForFile(file);
//noinspection ForLoopReplaceableByForEach
for (int i = 0; i < entries.size(); i++) {
final OrderEntry entry = entries.get(i);
if (orderEntries.contains(entry)) return true;
}
return false;
}
public boolean isSearchInModuleContent(@NotNull Module aModule) {
return false;
}
public boolean isSearchInLibraries() {
return true;
}
});
return original != null ? original : clazz;
}
private void error(String descr) {
PsiFile file = myScope.getContainingFile();
String fileText = file != null ? file.getText() : null;
LogMessageEx.error(LOG, descr, myScope.getText(), "\n------------------\n", fileText);
}