@Override
@NotNull
public StubTree getStubTree() {
ApplicationManager.getApplication().assertReadAccessAllowed();
StubTree stubTree = dereference(myStub);
if (stubTree != null) return stubTree;
// build newStub out of lock to avoid deadlock
StubTree newStubTree =
(StubTree) StubTreeLoader.getInstance().readOrBuild(getProject(), getVirtualFile(), this);
if (newStubTree == null) {
if (LOG.isDebugEnabled()) {
LOG.debug("No stub for class file in index: " + getVirtualFile().getPresentableUrl());
}
newStubTree = new StubTree(new PsiJavaFileStubImpl("corrupted.classfiles", true));
}
synchronized (myStubLock) {
stubTree = dereference(myStub);
if (stubTree != null) return stubTree;
stubTree = newStubTree;
@SuppressWarnings("unchecked")
PsiFileStubImpl<PsiFile> fileStub = (PsiFileStubImpl) stubTree.getRoot();
fileStub.setPsi(this);
myStub = new SoftReference<StubTree>(stubTree);
}
return stubTree;
}
public StubTree calcStubTree() {
FileElement fileElement = calcTreeElement();
synchronized (myStubFromTreeLock) {
SoftReference<StubTree> ref = fileElement.getUserData(STUB_TREE_IN_PARSED_TREE);
StubTree tree = SoftReference.dereference(ref);
if (tree == null) {
ApplicationManager.getApplication().assertReadAccessAllowed();
IElementType contentElementType = getContentElementType();
if (!(contentElementType instanceof IStubFileElementType)) {
VirtualFile vFile = getVirtualFile();
String message =
"ContentElementType: "
+ contentElementType
+ "; file: "
+ this
+ "\n\t"
+ "Boolean.TRUE.equals(getUserData(BUILDING_STUB)) = "
+ Boolean.TRUE.equals(getUserData(BUILDING_STUB))
+ "\n\t"
+ "getTreeElement() = "
+ getTreeElement()
+ "\n\t"
+ "vFile instanceof VirtualFileWithId = "
+ (vFile instanceof VirtualFileWithId)
+ "\n\t"
+ "StubUpdatingIndex.canHaveStub(vFile) = "
+ StubTreeLoader.getInstance().canHaveStub(vFile);
rebuildStub();
throw new AssertionError(message);
}
StubElement currentStubTree =
((IStubFileElementType) contentElementType).getBuilder().buildStubTree(this);
if (currentStubTree == null) {
throw new AssertionError(
"Stub tree wasn't built for " + contentElementType + "; file: " + this);
}
tree = new StubTree((PsiFileStub) currentStubTree);
tree.setDebugInfo("created in calcStubTree");
try {
TreeUtil.bindStubsToTree(this, tree);
} catch (TreeUtil.StubBindingException e) {
rebuildStub();
throw new RuntimeException("Stub and PSI element type mismatch in " + getName(), e);
}
fileElement.putUserData(STUB_TREE_IN_PARSED_TREE, new SoftReference<StubTree>(tree));
}
return tree;
}
}
@Override
@Nullable
public StubTree getStubTree() {
ApplicationManager.getApplication().assertReadAccessAllowed();
if (Boolean.TRUE.equals(getUserData(BUILDING_STUB))) return null;
final StubTree derefd = derefStub();
if (derefd != null) return derefd;
if (getTreeElement() != null) return null;
if (!(getContentElementType() instanceof IStubFileElementType)) return null;
final VirtualFile vFile = getVirtualFile();
if (!(vFile instanceof VirtualFileWithId)) return null;
final PsiFile stubBindingRoot = getViewProvider().getStubBindingRoot();
if (stubBindingRoot != this) {
LOG.error(
"Attempted to create stubs for non-root file: "
+ this
+ ", stub binding root: "
+ stubBindingRoot);
return null;
}
ObjectStubTree tree = StubTreeLoader.getInstance().readOrBuild(getProject(), vFile, this);
if (!(tree instanceof StubTree)) return null;
StubTree stubHolder = (StubTree) tree;
synchronized (PsiLock.LOCK) {
if (getTreeElement() != null) return null;
final StubTree derefdOnLock = derefStub();
if (derefdOnLock != null) return derefdOnLock;
//noinspection unchecked
((StubBase) stubHolder.getRoot()).setPsi(this);
myStub = new SoftReference<StubTree>(stubHolder);
return stubHolder;
}
}
private void rebuildStub() {
final VirtualFile vFile = getVirtualFile();
if (vFile != null && vFile.isValid()) {
ApplicationManager.getApplication()
.invokeLater(
new Runnable() {
@Override
public void run() {
final Document doc = FileDocumentManager.getInstance().getCachedDocument(vFile);
if (doc != null) {
FileDocumentManager.getInstance().saveDocument(doc);
}
}
},
ModalityState.NON_MODAL);
StubTreeLoader.getInstance().rebuildStubTree(vFile);
}
}
protected void reportStubAstMismatch(String message, StubTree stubTree, Document cachedDocument) {
rebuildStub();
clearStub("stub-psi mismatch");
scheduleDropCachesWithInvalidStubPsi();
String msg = message;
msg += "\n file=" + this;
msg += ", modStamp=" + getModificationStamp();
msg += "\n stub debugInfo=" + stubTree.getDebugInfo();
msg += "\n document before=" + cachedDocument;
ObjectStubTree latestIndexedStub =
StubTreeLoader.getInstance().readFromVFile(getProject(), getVirtualFile());
msg += "\nlatestIndexedStub=" + latestIndexedStub;
if (latestIndexedStub != null) {
msg +=
"\n same size="
+ (stubTree.getPlainList().size() == latestIndexedStub.getPlainList().size());
msg += "\n debugInfo=" + latestIndexedStub.getDebugInfo();
}
FileViewProvider viewProvider = getViewProvider();
msg += "\n viewProvider=" + viewProvider;
msg += "\n viewProvider stamp: " + viewProvider.getModificationStamp();
VirtualFile file = viewProvider.getVirtualFile();
msg += "; file stamp: " + file.getModificationStamp();
msg += "; file modCount: " + file.getModificationCount();
Document document = FileDocumentManager.getInstance().getCachedDocument(file);
if (document != null) {
msg += "\n doc saved: " + !FileDocumentManager.getInstance().isDocumentUnsaved(document);
msg += "; doc stamp: " + document.getModificationStamp();
msg += "; doc size: " + document.getTextLength();
msg += "; committed: " + PsiDocumentManager.getInstance(getProject()).isCommitted(document);
}
throw new AssertionError(msg + "\n------------\n");
}