@Override
@SuppressWarnings({"CloneDoesntDeclareCloneNotSupportedException", "CloneDoesntCallSuperClone"})
protected PsiFileImpl clone() {
FileViewProvider viewProvider = getViewProvider();
FileViewProvider providerCopy = viewProvider.clone();
final Language language = getLanguage();
if (providerCopy == null) {
throw new AssertionError(
"Unable to clone the view provider: " + viewProvider + "; " + language);
}
PsiFileImpl clone = BlockSupportImpl.getFileCopy(this, providerCopy);
copyCopyableDataTo(clone);
if (getTreeElement() != null) {
// not set by provider in clone
final FileElement treeClone = (FileElement) calcTreeElement().clone();
clone.setTreeElementPointer(
treeClone); // should not use setTreeElement here because cloned file still have
// VirtualFile (SCR17963)
treeClone.setPsi(clone);
}
if (viewProvider.isEventSystemEnabled()) {
clone.myOriginalFile = this;
} else if (myOriginalFile != null) {
clone.myOriginalFile = myOriginalFile;
}
return clone;
}
protected boolean isPsiUpToDate(@NotNull VirtualFile vFile) {
final FileViewProvider provider = myManager.findViewProvider(vFile);
Language language = getLanguage();
if (provider == null || provider.getPsi(language) == this) { // provider == null in tests
return true;
}
Language baseLanguage = provider.getBaseLanguage();
return baseLanguage != language && provider.getPsi(baseLanguage) == this;
}
@Override
public boolean isValid() {
FileViewProvider provider = getViewProvider();
final VirtualFile vFile = provider.getVirtualFile();
if (!vFile.isValid()) return false;
if (!provider.isEventSystemEnabled()) return true; // "dummy" file
if (myManager.getProject().isDisposed()) return false;
return isPsiUpToDate(vFile);
}
@Override
@NotNull
public PsiFile[] getPsiRoots() {
final FileViewProvider viewProvider = getViewProvider();
final Set<Language> languages = viewProvider.getLanguages();
final PsiFile[] roots = new PsiFile[languages.size()];
int i = 0;
for (Language language : languages) {
PsiFile psi = viewProvider.getPsi(language);
if (psi == null) {
LOG.error("PSI is null for " + language + "; in file: " + this);
}
roots[i++] = psi;
}
if (roots.length > 1) {
Arrays.sort(roots, FILE_BY_LANGUAGE_ID);
}
return roots;
}
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");
}
public void unloadContent() {
ApplicationManager.getApplication().assertWriteAccessAllowed();
clearCaches();
myViewProvider.beforeContentsSynchronized();
synchronized (PsiLock.LOCK) {
FileElement treeElement = derefTreeElement();
DebugUtil.startPsiModification("unloadContent");
try {
if (treeElement != null) {
myTreeElementPointer = null;
treeElement.detachFromFile();
DebugUtil.onInvalidated(treeElement);
}
clearStub("unloadContent");
} finally {
DebugUtil.finishPsiModification();
}
}
}
@NotNull
private FileElement loadTreeElement() {
ApplicationManager.getApplication().assertReadAccessAllowed();
final FileViewProvider viewProvider = getViewProvider();
if (viewProvider.isPhysical()
&& myManager.isAssertOnFileLoading(viewProvider.getVirtualFile())) {
LOG.error(
"Access to tree elements not allowed in tests. path='"
+ viewProvider.getVirtualFile().getPresentableUrl()
+ "'");
}
Document cachedDocument =
FileDocumentManager.getInstance().getCachedDocument(getViewProvider().getVirtualFile());
FileElement treeElement = createFileElement(viewProvider.getContents());
treeElement.setPsi(this);
List<Pair<StubBasedPsiElementBase, CompositeElement>> bindings =
calcStubAstBindings(treeElement, cachedDocument);
synchronized (PsiLock.LOCK) {
FileElement existing = derefTreeElement();
if (existing != null) {
return existing;
}
switchFromStubToAst(bindings);
myStub = null;
myTreeElementPointer = createTreeElementPointer(treeElement);
if (LOG.isDebugEnabled() && viewProvider.isPhysical()) {
LOG.debug("Loaded text for file " + viewProvider.getVirtualFile().getPresentableUrl());
}
return treeElement;
}
}
protected PsiFileImpl(@NotNull FileViewProvider provider) {
myManager = (PsiManagerEx) provider.getManager();
myViewProvider = provider;
}