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;
}
}