public abstract class PsiDocumentManagerBase extends PsiDocumentManager
implements ProjectComponent, DocumentListener {
protected static final Logger LOG =
Logger.getInstance("#com.intellij.psi.impl.PsiDocumentManagerImpl");
protected static final Key<PsiFile> HARD_REF_TO_PSI = new Key<PsiFile>("HARD_REFERENCE_TO_PSI");
protected static final Key<List<Runnable>> ACTION_AFTER_COMMIT =
Key.create("ACTION_AFTER_COMMIT");
protected final Project myProject;
protected final PsiManager myPsiManager;
protected final DocumentCommitProcessor myDocumentCommitProcessor;
protected final Set<Document> myUncommittedDocuments =
Collections.synchronizedSet(new HashSet<Document>());
protected volatile boolean myIsCommitInProgress;
protected final PsiToDocumentSynchronizer mySynchronizer;
protected final List<Listener> myListeners = ContainerUtil.createLockFreeCopyOnWriteList();
protected final SmartPointerManagerImpl mySmartPointerManager;
public PsiDocumentManagerBase(
@NotNull final Project project,
@NotNull PsiManager psiManager,
@NotNull SmartPointerManager smartPointerManager,
@NotNull MessageBus bus,
@NonNls @NotNull final DocumentCommitProcessor documentCommitProcessor) {
myProject = project;
myPsiManager = psiManager;
myDocumentCommitProcessor = documentCommitProcessor;
mySmartPointerManager = (SmartPointerManagerImpl) smartPointerManager;
mySynchronizer = new PsiToDocumentSynchronizer(this, bus);
myPsiManager.addPsiTreeChangeListener(mySynchronizer);
}
@Override
public void projectOpened() {}
@Override
public void projectClosed() {}
@Override
@NotNull
public String getComponentName() {
return "PsiDocumentManager";
}
@Override
public void initComponent() {}
@Override
public void disposeComponent() {}
@Override
@Nullable
public PsiFile getPsiFile(@NotNull Document document) {
final PsiFile userData = document.getUserData(HARD_REF_TO_PSI);
if (userData != null) return userData;
PsiFile psiFile = getCachedPsiFile(document);
if (psiFile != null) return psiFile;
final VirtualFile virtualFile = FileDocumentManager.getInstance().getFile(document);
if (virtualFile == null || !virtualFile.isValid()) return null;
psiFile = getPsiFile(virtualFile);
if (psiFile == null) return null;
fireFileCreated(document, psiFile);
return psiFile;
}
public static void cachePsi(@NotNull Document document, @NotNull PsiFile file) {
document.putUserData(HARD_REF_TO_PSI, file);
}
@Override
public PsiFile getCachedPsiFile(@NotNull Document document) {
final PsiFile userData = document.getUserData(HARD_REF_TO_PSI);
if (userData != null) return userData;
final VirtualFile virtualFile = FileDocumentManager.getInstance().getFile(document);
if (virtualFile == null || !virtualFile.isValid()) return null;
return getCachedPsiFile(virtualFile);
}
@Nullable
public FileViewProvider getCachedViewProvider(@NotNull Document document) {
final VirtualFile virtualFile = FileDocumentManager.getInstance().getFile(document);
if (virtualFile == null || !virtualFile.isValid()) return null;
return ((PsiManagerEx) myPsiManager).getFileManager().findCachedViewProvider(virtualFile);
}
@Nullable
protected PsiFile getCachedPsiFile(VirtualFile virtualFile) {
return ((PsiManagerEx) myPsiManager).getFileManager().getCachedPsiFile(virtualFile);
}
@Nullable
protected PsiFile getPsiFile(VirtualFile virtualFile) {
return ((PsiManagerEx) myPsiManager).getFileManager().findFile(virtualFile);
}
@Nullable
@Override
public Document getDocument(@NotNull PsiFile file) {
if (file instanceof PsiBinaryFile) return null;
Document document = getCachedDocument(file);
if (document != null) {
if (!file.getViewProvider().isPhysical() && document.getUserData(HARD_REF_TO_PSI) == null) {
cachePsi(document, file);
}
return document;
}
if (!file.getViewProvider().isEventSystemEnabled()) return null;
document =
FileDocumentManager.getInstance().getDocument(file.getViewProvider().getVirtualFile());
if (document != null) {
if (document.getTextLength() != file.getTextLength()) {
throw new AssertionError(
"Modified PSI with no document: "
+ file
+ "; physical="
+ file.getViewProvider().isPhysical());
}
if (!file.getViewProvider().isPhysical()) {
cachePsi(document, file);
}
}
return document;
}
@Override
public Document getCachedDocument(@NotNull PsiFile file) {
if (!file.isPhysical()) return null;
VirtualFile vFile = file.getViewProvider().getVirtualFile();
return FileDocumentManager.getInstance().getCachedDocument(vFile);
}
@Override
public void commitAllDocuments() {
ApplicationManager.getApplication().assertIsDispatchThread();
if (myUncommittedDocuments.isEmpty()) return;
final Document[] documents = getUncommittedDocuments();
for (Document document : documents) {
commitDocument(document);
}
LOG.assertTrue(!hasUncommitedDocuments(), myUncommittedDocuments);
}
@Override
public void performForCommittedDocument(
@NotNull final Document doc, @NotNull final Runnable action) {
final Document document =
doc instanceof DocumentWindow ? ((DocumentWindow) doc).getDelegate() : doc;
if (isCommitted(document)) {
action.run();
} else {
addRunOnCommit(document, action);
}
}
private final Map<Object, Runnable> actionsWhenAllDocumentsAreCommitted =
new LinkedHashMap<Object, Runnable>(); // accessed from EDT only
private static final Object PERFORM_ALWAYS_KEY =
new Object() {
@Override
@NonNls
public String toString() {
return "PERFORM_ALWAYS";
}
};
/**
* Cancel previously registered action and schedules (new) action to be executed when all
* documents are committed.
*
* @param key the (unique) id of the action.
* @param action The action to be executed after automatic commit. This action will overwrite any
* action which was registered under this key earlier. The action will be executed in EDT.
* @return true if action has been run immediately, or false if action was scheduled for execution
* later.
*/
public boolean cancelAndRunWhenAllCommitted(
@NonNls @NotNull Object key, @NotNull final Runnable action) {
ApplicationManager.getApplication().assertIsDispatchThread();
if (myProject.isDisposed()) {
action.run();
return true;
}
if (myUncommittedDocuments.isEmpty()) {
action.run();
assert actionsWhenAllDocumentsAreCommitted.isEmpty() : actionsWhenAllDocumentsAreCommitted;
return true;
}
actionsWhenAllDocumentsAreCommitted.put(key, action);
return false;
}
public static void addRunOnCommit(@NotNull Document document, @NotNull Runnable action) {
synchronized (ACTION_AFTER_COMMIT) {
List<Runnable> list = document.getUserData(ACTION_AFTER_COMMIT);
if (list == null) {
document.putUserData(ACTION_AFTER_COMMIT, list = new SmartList<Runnable>());
}
list.add(action);
}
}
@Override
public void commitDocument(@NotNull final Document doc) {
final Document document =
doc instanceof DocumentWindow ? ((DocumentWindow) doc).getDelegate() : doc;
if (!isCommitted(document)) {
doCommit(document, null);
}
}
public boolean finishCommit(
@NotNull final Document document,
@NotNull final List<Processor<Document>> finishProcessors,
final boolean synchronously,
@NotNull final Object reason) {
assert !myProject.isDisposed() : "Already disposed";
final boolean[] ok = {true};
ApplicationManager.getApplication()
.runWriteAction(
new CommitToPsiFileAction(document, myProject) {
@Override
public void run() {
ok[0] = finishCommitInWriteAction(document, finishProcessors, synchronously);
}
});
if (ok[0]) {
// otherwise changes maybe not synced to the document yet, and injectors will crash
if (!mySynchronizer.isDocumentAffectedByTransactions(document)) {
final InjectedLanguageManager injectedLanguageManager =
InjectedLanguageManager.getInstance(myProject);
if (injectedLanguageManager != null)
injectedLanguageManager.startRunInjectors(document, synchronously);
}
// run after commit actions outside write action
runAfterCommitActions(document);
if (DebugUtil.DO_EXPENSIVE_CHECKS) {
checkAllElementsValid(document, reason);
}
}
return ok[0];
}
protected boolean finishCommitInWriteAction(
@NotNull final Document document,
@NotNull final List<Processor<Document>> finishProcessors,
final boolean synchronously) {
if (myProject.isDisposed()) return false;
assert !(document instanceof DocumentWindow);
myIsCommitInProgress = true;
boolean success = true;
try {
final FileViewProvider viewProvider = getCachedViewProvider(document);
if (viewProvider != null) {
for (Processor<Document> finishRunnable : finishProcessors) {
success = finishRunnable.process(document);
if (synchronously) {
assert success;
}
if (!success) {
break;
}
}
viewProvider.contentsSynchronized();
}
} finally {
myDocumentCommitProcessor.log(
"in PDI.finishDoc: ", null, synchronously, success, myUncommittedDocuments);
if (success) {
myUncommittedDocuments.remove(document);
myDocumentCommitProcessor.log(
"in PDI.finishDoc: removed doc", null, synchronously, success, myUncommittedDocuments);
}
myIsCommitInProgress = false;
myDocumentCommitProcessor.log(
"in PDI.finishDoc: exit", null, synchronously, success, myUncommittedDocuments);
}
return success;
}
private void checkAllElementsValid(@NotNull Document document, @NotNull final Object reason) {
final PsiFile psiFile = getCachedPsiFile(document);
if (psiFile != null) {
psiFile.accept(
new PsiRecursiveElementWalkingVisitor() {
@Override
public void visitElement(PsiElement element) {
if (!element.isValid()) {
throw new AssertionError(
"Commit to '"
+ psiFile.getVirtualFile()
+ "' has led to invalid element: "
+ element
+ "; Reason: '"
+ reason
+ "'");
}
}
});
}
}
protected void doCommit(@NotNull final Document document, final PsiFile excludeFile) {
assert !myIsCommitInProgress : "Do not call commitDocument() from inside PSI change listener";
ApplicationManager.getApplication()
.runWriteAction(
new Runnable() {
@Override
public void run() {
// otherwise there are many clients calling commitAllDocs() on PSI childrenChanged()
if (getSynchronizer().isDocumentAffectedByTransactions(document)
&& excludeFile == null) return;
myIsCommitInProgress = true;
try {
myDocumentCommitProcessor.commitSynchronously(document, myProject, excludeFile);
} finally {
myIsCommitInProgress = false;
}
assert !myUncommittedDocuments.contains(document) : "Document :" + document;
}
});
}
public void commitOtherFilesAssociatedWithDocument(
final Document document, final PsiFile psiFile) {}
@Override
public <T> T commitAndRunReadAction(@NotNull final Computable<T> computation) {
final Ref<T> ref = Ref.create(null);
commitAndRunReadAction(
new Runnable() {
@Override
public void run() {
ref.set(computation.compute());
}
});
return ref.get();
}
@Override
public void commitAndRunReadAction(@NotNull final Runnable runnable) {
final Application application = ApplicationManager.getApplication();
if (SwingUtilities.isEventDispatchThread()) {
commitAllDocuments();
runnable.run();
} else {
LOG.assertTrue(
!ApplicationManager.getApplication().isReadAccessAllowed(),
"Don't call commitAndRunReadAction inside ReadAction, it will cause a deadlock otherwise.");
final Semaphore s1 = new Semaphore();
final Semaphore s2 = new Semaphore();
final boolean[] committed = {false};
application.runReadAction(
new Runnable() {
@Override
public void run() {
if (myUncommittedDocuments.isEmpty()) {
runnable.run();
committed[0] = true;
} else {
s1.down();
s2.down();
final Runnable commitRunnable =
new Runnable() {
@Override
public void run() {
commitAllDocuments();
s1.up();
s2.waitFor();
}
};
final ProgressIndicator progressIndicator =
ProgressManager.getInstance().getProgressIndicator();
if (progressIndicator == null) {
ApplicationManager.getApplication().invokeLater(commitRunnable);
} else {
ApplicationManager.getApplication()
.invokeLater(commitRunnable, progressIndicator.getModalityState());
}
}
}
});
if (!committed[0]) {
s1.waitFor();
application.runReadAction(
new Runnable() {
@Override
public void run() {
s2.up();
runnable.run();
}
});
}
}
}
/**
* Schedules action to be executed when all documents are committed.
*
* @return true if action has been run immediately, or false if action was scheduled for execution
* later.
*/
@Override
public boolean performWhenAllCommitted(@NotNull final Runnable action) {
ApplicationManager.getApplication().assertIsDispatchThread();
assert !myProject.isDisposed() : "Already disposed: " + myProject;
if (myUncommittedDocuments.isEmpty()) {
action.run();
return true;
}
CompositeRunnable actions =
(CompositeRunnable) actionsWhenAllDocumentsAreCommitted.get(PERFORM_ALWAYS_KEY);
if (actions == null) {
actions = new CompositeRunnable();
actionsWhenAllDocumentsAreCommitted.put(PERFORM_ALWAYS_KEY, actions);
}
actions.add(action);
myDocumentCommitProcessor.log(
"PDI: added performWhenAllCommitted", null, false, action, myUncommittedDocuments);
return false;
}
private static class CompositeRunnable extends ArrayList<Runnable> implements Runnable {
@Override
public void run() {
for (Runnable runnable : this) {
runnable.run();
}
}
}
private void runAfterCommitActions(@NotNull Document document) {
ApplicationManager.getApplication().assertIsDispatchThread();
List<Runnable> list;
synchronized (ACTION_AFTER_COMMIT) {
list = document.getUserData(ACTION_AFTER_COMMIT);
if (list != null) {
list = new ArrayList<Runnable>(list);
document.putUserData(ACTION_AFTER_COMMIT, null);
}
}
if (list != null) {
for (final Runnable runnable : list) {
runnable.run();
}
}
if (!hasUncommitedDocuments() && !actionsWhenAllDocumentsAreCommitted.isEmpty()) {
List<Object> keys = new ArrayList<Object>(actionsWhenAllDocumentsAreCommitted.keySet());
for (Object key : keys) {
Runnable action = actionsWhenAllDocumentsAreCommitted.remove(key);
myDocumentCommitProcessor.log("Running after commit runnable: ", null, false, key, action);
action.run();
}
}
}
@Override
public void addListener(@NotNull Listener listener) {
myListeners.add(listener);
}
@Override
public void removeListener(@NotNull Listener listener) {
myListeners.remove(listener);
}
@Override
public boolean isDocumentBlockedByPsi(@NotNull Document doc) {
return false;
}
@Override
public void doPostponedOperationsAndUnblockDocument(@NotNull Document doc) {}
protected void fireDocumentCreated(@NotNull Document document, PsiFile file) {
for (Listener listener : myListeners) {
listener.documentCreated(document, file);
}
}
private void fireFileCreated(Document document, PsiFile file) {
for (Listener listener : myListeners) {
listener.fileCreated(file, document);
}
}
@Override
@NotNull
public Document[] getUncommittedDocuments() {
ApplicationManager.getApplication().assertIsDispatchThread();
return myUncommittedDocuments.toArray(new Document[myUncommittedDocuments.size()]);
}
public Collection<Document> getUncommittedDocumentsUnsafe() {
return myUncommittedDocuments;
}
@Override
public boolean isUncommited(@NotNull Document document) {
return !isCommitted(document);
}
@Override
public boolean isCommitted(@NotNull Document document) {
if (getSynchronizer().isInSynchronization(document)) return true;
return !((DocumentEx) document).isInEventsHandling()
&& !myUncommittedDocuments.contains(document);
}
@Override
public boolean hasUncommitedDocuments() {
return !myIsCommitInProgress && !myUncommittedDocuments.isEmpty();
}
@Override
public void beforeDocumentChange(DocumentEvent event) {
final Document document = event.getDocument();
final FileViewProvider viewProvider = getCachedViewProvider(document);
if (viewProvider == null) return;
if (!isRelevant(viewProvider)) return;
VirtualFile virtualFile = viewProvider.getVirtualFile();
if (virtualFile.getFileType().isBinary()) return;
final List<PsiFile> files = viewProvider.getAllFiles();
PsiFile psiCause = null;
for (PsiFile file : files) {
mySmartPointerManager.fastenBelts(file, event.getOffset(), null);
if (TextBlock.get(file).isLocked()) {
psiCause = file;
}
}
if (psiCause == null) {
beforeDocumentChangeOnUnlockedDocument(viewProvider);
}
((SingleRootFileViewProvider) viewProvider).beforeDocumentChanged(psiCause);
}
protected void beforeDocumentChangeOnUnlockedDocument(
@NotNull final FileViewProvider viewProvider) {}
@Override
public void documentChanged(DocumentEvent event) {
final Document document = event.getDocument();
final FileViewProvider viewProvider = getCachedViewProvider(document);
if (viewProvider == null) return;
if (!isRelevant(viewProvider)) return;
ApplicationManager.getApplication().assertWriteAccessAllowed();
final List<PsiFile> files = viewProvider.getAllFiles();
boolean commitNecessary = true;
for (PsiFile file : files) {
mySmartPointerManager.unfastenBelts(file, event.getOffset());
final TextBlock textBlock = TextBlock.get(file);
if (textBlock.isLocked()) {
commitNecessary = false;
continue;
}
textBlock.documentChanged(event);
assert file instanceof PsiFileImpl
|| "mock.file".equals(file.getName())
&& ApplicationManager.getApplication().isUnitTestMode()
: event + "; file=" + file + "; allFiles=" + files + "; viewProvider=" + viewProvider;
}
boolean forceCommit =
ApplicationManager.getApplication().hasWriteAction(ExternalChangeAction.class)
&& (SystemProperties.getBooleanProperty("idea.force.commit.on.external.change", false)
|| ApplicationManager.getApplication().isHeadlessEnvironment());
// Consider that it's worth to perform complete re-parse instead of merge if the whole document
// text is replaced and
// current document lines number is roughly above 5000. This makes sense in situations when
// external change is performed
// for the huge file (that causes the whole document to be reloaded and 'merge' way takes a
// while to complete).
if (event.isWholeTextReplaced() && document.getTextLength() > 100000) {
document.putUserData(BlockSupport.DO_NOT_REPARSE_INCREMENTALLY, Boolean.TRUE);
}
if (commitNecessary) {
myUncommittedDocuments.add(document);
if (forceCommit) {
commitDocument(document);
} else if (!((DocumentEx) document).isInBulkUpdate()) {
myDocumentCommitProcessor.commitAsynchronously(myProject, document, event);
}
}
}
private boolean isRelevant(@NotNull FileViewProvider viewProvider) {
VirtualFile virtualFile = viewProvider.getVirtualFile();
return !virtualFile.getFileType().isBinary()
&& viewProvider.getManager() == myPsiManager
&& !myPsiManager.getProject().isDisposed();
}
public static boolean checkConsistency(PsiFile psiFile, Document document) {
// todo hack
if (psiFile.getVirtualFile() == null) return true;
CharSequence editorText = document.getCharsSequence();
int documentLength = document.getTextLength();
if (psiFile.textMatches(editorText)) {
LOG.assertTrue(psiFile.getTextLength() == documentLength);
return true;
}
char[] fileText = psiFile.textToCharArray();
@SuppressWarnings({"NonConstantStringShouldBeStringBuffer"})
@NonNls
String error =
"File '"
+ psiFile.getName()
+ "' text mismatch after reparse. "
+ "File length="
+ fileText.length
+ "; Doc length="
+ documentLength
+ "\n";
int i = 0;
for (; i < documentLength; i++) {
if (i >= fileText.length) {
error += "editorText.length > psiText.length i=" + i + "\n";
break;
}
if (i >= editorText.length()) {
error += "editorText.length > psiText.length i=" + i + "\n";
break;
}
if (editorText.charAt(i) != fileText[i]) {
error += "first unequal char i=" + i + "\n";
break;
}
}
// error += "*********************************************" + "\n";
// if (i <= 500){
// error += "Equal part:" + editorText.subSequence(0, i) + "\n";
// }
// else{
// error += "Equal part start:\n" + editorText.subSequence(0, 200) + "\n";
// error += "................................................" + "\n";
// error += "................................................" + "\n";
// error += "................................................" + "\n";
// error += "Equal part end:\n" + editorText.subSequence(i - 200, i) + "\n";
// }
error += "*********************************************" + "\n";
error +=
"Editor Text tail:("
+ (documentLength - i)
+ ")\n"; // + editorText.subSequence(i, Math.min(i + 300, documentLength)) + "\n";
error += "*********************************************" + "\n";
error += "Psi Text tail:(" + (fileText.length - i) + ")\n";
error += "*********************************************" + "\n";
if (document instanceof DocumentWindow) {
error += "doc: '" + document.getText() + "'\n";
error += "psi: '" + psiFile.getText() + "'\n";
error += "ast: '" + psiFile.getNode().getText() + "'\n";
error += psiFile.getLanguage() + "\n";
PsiElement context =
InjectedLanguageManager.getInstance(psiFile.getProject()).getInjectionHost(psiFile);
if (context != null) {
error += "context: " + context + "; text: '" + context.getText() + "'\n";
error += "context file: " + context.getContainingFile() + "\n";
}
error +=
"document window ranges: "
+ Arrays.asList(((DocumentWindow) document).getHostRanges())
+ "\n";
}
LOG.error(error);
// document.replaceString(0, documentLength, psiFile.getText());
return false;
}
@TestOnly
public void clearUncommittedDocuments() {
myUncommittedDocuments.clear();
mySynchronizer.cleanupForNextTest();
}
public PsiToDocumentSynchronizer getSynchronizer() {
return mySynchronizer;
}
}
@Override
protected void collectInformationWithProgress(@NotNull final ProgressIndicator progress) {
if (!Registry.is("editor.injected.highlighting.enabled")) return;
final Set<HighlightInfo> gotHighlights = new THashSet<HighlightInfo>(100);
final List<PsiElement> inside = new ArrayList<PsiElement>();
final List<PsiElement> outside = new ArrayList<PsiElement>();
List<ProperTextRange> insideRanges = new ArrayList<ProperTextRange>();
List<ProperTextRange> outsideRanges = new ArrayList<ProperTextRange>();
// TODO: this thing is just called TWICE with same arguments eating CPU on huge files :(
Divider.divideInsideAndOutside(
myFile,
myRestrictRange.getStartOffset(),
myRestrictRange.getEndOffset(),
myPriorityRange,
inside,
insideRanges,
outside,
outsideRanges,
false,
SHOULD_HIGHIGHT_FILTER);
// all infos for the "injected fragment for the host which is inside" are indeed inside
// but some of the infos for the "injected fragment for the host which is outside" can be still
// inside
Set<HighlightInfo> injectedResult = new THashSet<HighlightInfo>();
Set<PsiFile> injected = getInjectedPsiFiles(inside, outside, progress);
setProgressLimit(injected.size());
if (!addInjectedPsiHighlights(
injected, progress, Collections.synchronizedSet(injectedResult))) {
throw new ProcessCanceledException();
}
final List<HighlightInfo> injectionsOutside =
new ArrayList<HighlightInfo>(gotHighlights.size());
Set<HighlightInfo> result;
synchronized (injectedResult) {
// sync here because all writes happened in another thread
result = injectedResult;
}
for (HighlightInfo info : result) {
if (myRestrictRange.contains(info)) {
gotHighlights.add(info);
} else {
// nonconditionally apply injected results regardless whether they are in
// myStartOffset,myEndOffset
injectionsOutside.add(info);
}
}
if (!injectionsOutside.isEmpty()) {
final ProperTextRange priorityIntersection = myPriorityRange.intersection(myRestrictRange);
if ((!inside.isEmpty() || !gotHighlights.isEmpty())
&& priorityIntersection
!= null) { // do not apply when there were no elements to highlight
// clear infos found in visible area to avoid applying them twice
final List<HighlightInfo> toApplyInside = new ArrayList<HighlightInfo>(gotHighlights);
myHighlights.addAll(toApplyInside);
gotHighlights.clear();
myHighlightInfoProcessor.highlightsInsideVisiblePartAreProduced(
myHighlightingSession, toApplyInside, myPriorityRange, myRestrictRange, getId());
}
List<HighlightInfo> toApply = new ArrayList<HighlightInfo>();
for (HighlightInfo info : gotHighlights) {
if (!myRestrictRange.containsRange(info.getStartOffset(), info.getEndOffset())) continue;
if (!myPriorityRange.containsRange(info.getStartOffset(), info.getEndOffset())) {
toApply.add(info);
}
}
toApply.addAll(injectionsOutside);
myHighlightInfoProcessor.highlightsOutsideVisiblePartAreProduced(
myHighlightingSession,
toApply,
myRestrictRange,
new ProperTextRange(0, myDocument.getTextLength()),
getId());
} else {
// else apply only result (by default apply command) and only within inside
myHighlights.addAll(gotHighlights);
myHighlightInfoProcessor.highlightsInsideVisiblePartAreProduced(
myHighlightingSession, myHighlights, myRestrictRange, myRestrictRange, getId());
}
}
private void processBatch(
@NotNull final ProgressIndicator indicator, @NotNull Set<VirtualFile> files) {
assert !myApplication.isDispatchThread();
final int resolvedInPreviousBatch = this.resolvedInPreviousBatch;
final int totalSize = files.size() + resolvedInPreviousBatch;
final ConcurrentIntObjectMap<int[]> fileToForwardIds =
ContainerUtil.createConcurrentIntObjectMap();
final Set<VirtualFile> toProcess = Collections.synchronizedSet(files);
indicator.setIndeterminate(false);
ProgressIndicatorUtils.forceWriteActionPriority(indicator, (Disposable) indicator);
long start = System.currentTimeMillis();
Processor<VirtualFile> processor =
file -> {
double fraction = 1 - toProcess.size() * 1.0 / totalSize;
indicator.setFraction(fraction);
try {
if (!file.isDirectory() && toResolve(file, myProject)) {
int fileId = getAbsId(file);
int i = totalSize - toProcess.size();
indicator.setText(i + "/" + totalSize + ": Resolving " + file.getPresentableUrl());
int[] forwardIds = processFile(file, fileId, indicator);
if (forwardIds == null) {
// queueUpdate(file);
return false;
}
fileToForwardIds.put(fileId, forwardIds);
}
toProcess.remove(file);
return true;
} catch (RuntimeException e) {
indicator.checkCanceled();
}
return true;
};
boolean success = true;
try {
success = processFilesConcurrently(files, indicator, processor);
} finally {
this.resolvedInPreviousBatch = toProcess.isEmpty() ? 0 : totalSize - toProcess.size();
queue(toProcess, "re-added after fail. success=" + success);
storeIds(fileToForwardIds);
long end = System.currentTimeMillis();
log(
"Resolved batch of "
+ (totalSize - toProcess.size())
+ " from "
+ totalSize
+ " files in "
+ ((end - start) / 1000)
+ "sec. (Gap: "
+ storage.gap
+ ")");
synchronized (filesToResolve) {
upToDate = filesToResolve.isEmpty();
log("upToDate = " + upToDate);
if (upToDate) {
for (Listener listener : myListeners) {
listener.allFilesResolved();
}
}
}
}
}
public void inlineElement(
final Project project, final Editor editor, final PsiElement psiElement) {
final PsiParameter psiParameter = (PsiParameter) psiElement;
final PsiParameterList parameterList = (PsiParameterList) psiParameter.getParent();
if (!(parameterList.getParent() instanceof PsiMethod)) {
return;
}
final int index = parameterList.getParameterIndex(psiParameter);
final PsiMethod method = (PsiMethod) parameterList.getParent();
String errorMessage = getCannotInlineMessage(psiParameter, method);
if (errorMessage != null) {
CommonRefactoringUtil.showErrorHint(
project,
editor,
errorMessage,
RefactoringBundle.message("inline.parameter.refactoring"),
null);
return;
}
final Ref<PsiExpression> refInitializer = new Ref<PsiExpression>();
final Ref<PsiExpression> refConstantInitializer = new Ref<PsiExpression>();
final Ref<PsiCallExpression> refMethodCall = new Ref<PsiCallExpression>();
final List<PsiReference> occurrences =
Collections.synchronizedList(new ArrayList<PsiReference>());
final Collection<PsiFile> containingFiles = Collections.synchronizedSet(new HashSet<PsiFile>());
containingFiles.add(psiParameter.getContainingFile());
boolean result =
ReferencesSearch.search(method)
.forEach(
new Processor<PsiReference>() {
public boolean process(final PsiReference psiReference) {
PsiElement element = psiReference.getElement();
final PsiElement parent = element.getParent();
if (parent instanceof PsiCallExpression) {
final PsiCallExpression methodCall = (PsiCallExpression) parent;
occurrences.add(psiReference);
containingFiles.add(element.getContainingFile());
final PsiExpression[] expressions =
methodCall.getArgumentList().getExpressions();
if (expressions.length <= index) return false;
PsiExpression argument = expressions[index];
if (!refInitializer.isNull()) {
return argument != null
&& PsiEquivalenceUtil.areElementsEquivalent(
refInitializer.get(), argument)
&& PsiEquivalenceUtil.areElementsEquivalent(
refMethodCall.get(), methodCall);
}
if (InlineToAnonymousConstructorProcessor.isConstant(argument)
|| getReferencedFinalField(argument) != null) {
if (refConstantInitializer.isNull()) {
refConstantInitializer.set(argument);
} else if (!isSameConstant(argument, refConstantInitializer.get())) {
return false;
}
} else if (!isRecursiveReferencedParameter(argument, psiParameter)) {
if (!refConstantInitializer.isNull()) return false;
refInitializer.set(argument);
refMethodCall.set(methodCall);
}
}
return true;
}
});
final int offset = editor.getCaretModel().getOffset();
final PsiElement refExpr = psiElement.getContainingFile().findElementAt(offset);
final PsiCodeBlock codeBlock = PsiTreeUtil.getParentOfType(refExpr, PsiCodeBlock.class);
if (codeBlock != null) {
final PsiElement[] defs = DefUseUtil.getDefs(codeBlock, psiParameter, refExpr);
if (defs.length == 1) {
final PsiElement def = defs[0];
if (def instanceof PsiReferenceExpression
&& PsiUtil.isOnAssignmentLeftHand((PsiExpression) def)) {
final PsiExpression rExpr = ((PsiAssignmentExpression) def.getParent()).getRExpression();
if (rExpr != null) {
final PsiElement[] refs = DefUseUtil.getRefs(codeBlock, psiParameter, refExpr);
if (InlineLocalHandler.checkRefsInAugmentedAssignmentOrUnaryModified(refs, def)
== null) {
new WriteCommandAction(project) {
@Override
protected void run(Result result) throws Throwable {
for (final PsiElement ref : refs) {
InlineUtil.inlineVariable(
psiParameter, rExpr, (PsiJavaCodeReferenceElement) ref);
}
def.getParent().delete();
}
}.execute();
return;
}
}
}
}
}
if (occurrences.isEmpty()) {
CommonRefactoringUtil.showErrorHint(
project,
editor,
"Method has no usages",
RefactoringBundle.message("inline.parameter.refactoring"),
null);
return;
}
if (!result) {
CommonRefactoringUtil.showErrorHint(
project,
editor,
"Cannot find constant initializer for parameter",
RefactoringBundle.message("inline.parameter.refactoring"),
null);
return;
}
if (!refInitializer.isNull()) {
if (ApplicationManager.getApplication().isUnitTestMode()) {
final InlineParameterExpressionProcessor processor =
new InlineParameterExpressionProcessor(
refMethodCall.get(),
method,
psiParameter,
refInitializer.get(),
method
.getProject()
.getUserData(InlineParameterExpressionProcessor.CREATE_LOCAL_FOR_TESTS));
processor.run();
} else {
final boolean createLocal = ReferencesSearch.search(psiParameter).findAll().size() > 1;
InlineParameterDialog dlg =
new InlineParameterDialog(
refMethodCall.get(), method, psiParameter, refInitializer.get(), createLocal);
dlg.show();
}
return;
}
if (refConstantInitializer.isNull()) {
CommonRefactoringUtil.showErrorHint(
project,
editor,
"Cannot find constant initializer for parameter",
RefactoringBundle.message("inline.parameter.refactoring"),
null);
return;
}
final Ref<Boolean> isNotConstantAccessible = new Ref<Boolean>();
final PsiExpression constantExpression = refConstantInitializer.get();
constantExpression.accept(
new JavaRecursiveElementVisitor() {
@Override
public void visitReferenceExpression(PsiReferenceExpression expression) {
super.visitReferenceExpression(expression);
final PsiElement resolved = expression.resolve();
if (resolved instanceof PsiMember
&& !PsiUtil.isAccessible((PsiMember) resolved, method, null)) {
isNotConstantAccessible.set(Boolean.TRUE);
}
}
});
if (!isNotConstantAccessible.isNull() && isNotConstantAccessible.get()) {
CommonRefactoringUtil.showErrorHint(
project,
editor,
"Constant initializer is not accessible in method body",
RefactoringBundle.message("inline.parameter.refactoring"),
null);
return;
}
for (PsiReference psiReference : ReferencesSearch.search(psiParameter)) {
final PsiElement element = psiReference.getElement();
if (element instanceof PsiExpression
&& PsiUtil.isAccessedForWriting((PsiExpression) element)) {
CommonRefactoringUtil.showErrorHint(
project,
editor,
"Inline parameter which has write usages is not supported",
RefactoringBundle.message("inline.parameter.refactoring"),
null);
return;
}
}
if (!ApplicationManager.getApplication().isUnitTestMode()) {
String occurencesString = RefactoringBundle.message("occurences.string", occurrences.size());
String question =
RefactoringBundle.message(
"inline.parameter.confirmation",
psiParameter.getName(),
constantExpression.getText())
+ " "
+ occurencesString;
RefactoringMessageDialog dialog =
new RefactoringMessageDialog(
REFACTORING_NAME,
question,
HelpID.INLINE_VARIABLE,
"OptionPane.questionIcon",
true,
project);
dialog.show();
if (!dialog.isOK()) {
return;
}
}
final RefactoringEventData data = new RefactoringEventData();
data.addElement(psiElement.copy());
project
.getMessageBus()
.syncPublisher(RefactoringEventListener.REFACTORING_EVENT_TOPIC)
.refactoringStarted(REFACTORING_ID, data);
SameParameterValueInspection.InlineParameterValueFix.inlineSameParameterValue(
method, psiParameter, constantExpression);
project
.getMessageBus()
.syncPublisher(RefactoringEventListener.REFACTORING_EVENT_TOPIC)
.refactoringDone(REFACTORING_ID, null);
}
/** @author cdr */
public class InjectedLanguageManagerImpl extends InjectedLanguageManager implements Disposable {
private static final Logger LOG =
Logger.getInstance("#com.intellij.psi.impl.source.tree.injected.InjectedLanguageManagerImpl");
static final Object ourInjectionPsiLock = new String("injectionPsiLock");
private final Project myProject;
private final DumbService myDumbService;
private volatile DaemonProgressIndicator myProgress;
public static InjectedLanguageManagerImpl getInstanceImpl(Project project) {
return (InjectedLanguageManagerImpl) InjectedLanguageManager.getInstance(project);
}
public InjectedLanguageManagerImpl(Project project, DumbService dumbService) {
myProject = project;
myDumbService = dumbService;
final ExtensionPoint<MultiHostInjector> multiPoint =
Extensions.getArea(project).getExtensionPoint(MultiHostInjector.MULTIHOST_INJECTOR_EP_NAME);
((ExtensionPointImpl<MultiHostInjector>) multiPoint)
.addExtensionPointListener(
new ExtensionPointListener<MultiHostInjector>() {
@Override
public void extensionAdded(
@NotNull MultiHostInjector injector,
@Nullable PluginDescriptor pluginDescriptor) {
clearInjectorCache();
}
@Override
public void extensionRemoved(
@NotNull MultiHostInjector injector,
@Nullable PluginDescriptor pluginDescriptor) {
clearInjectorCache();
}
},
false,
this);
final ExtensionPointListener<LanguageInjector> myListener =
new ExtensionPointListener<LanguageInjector>() {
@Override
public void extensionAdded(
@NotNull LanguageInjector extension, @Nullable PluginDescriptor pluginDescriptor) {
clearInjectorCache();
}
@Override
public void extensionRemoved(
@NotNull LanguageInjector extension, @Nullable PluginDescriptor pluginDescriptor) {
clearInjectorCache();
}
};
final ExtensionPoint<LanguageInjector> psiManagerPoint =
Extensions.getRootArea().getExtensionPoint(LanguageInjector.EXTENSION_POINT_NAME);
((ExtensionPointImpl<LanguageInjector>) psiManagerPoint)
.addExtensionPointListener(myListener, false, this);
myProgress = new DaemonProgressIndicator();
project
.getMessageBus()
.connect(this)
.subscribe(
DaemonCodeAnalyzer.DAEMON_EVENT_TOPIC,
new DaemonCodeAnalyzer.DaemonListenerAdapter() {
@Override
public void daemonCancelEventOccurred(@NotNull String reason) {
if (!myProgress.isCanceled()) myProgress.cancel();
}
});
}
@Override
public void dispose() {
myProgress.cancel();
EditorWindowImpl.disposeInvalidEditors();
}
@Override
public void startRunInjectors(@NotNull final Document hostDocument, final boolean synchronously) {
if (myProject.isDisposed()) return;
if (!synchronously && ApplicationManager.getApplication().isWriteAccessAllowed()) return;
// use cached to avoid recreate PSI in alien project
final PsiDocumentManager documentManager = PsiDocumentManager.getInstance(myProject);
final PsiFile hostPsiFile = documentManager.getCachedPsiFile(hostDocument);
if (hostPsiFile == null) return;
final ConcurrentList<DocumentWindow> injected =
InjectedLanguageUtil.getCachedInjectedDocuments(hostPsiFile);
if (injected.isEmpty()) return;
if (myProgress.isCanceled()) {
myProgress = new DaemonProgressIndicator();
}
final Set<DocumentWindow> newDocuments = Collections.synchronizedSet(new THashSet<>());
final Processor<DocumentWindow> commitProcessor =
documentWindow -> {
if (myProject.isDisposed()) return false;
ProgressIndicator indicator = ProgressManager.getInstance().getProgressIndicator();
if (indicator != null && indicator.isCanceled()) return false;
if (documentManager.isUncommited(hostDocument) || !hostPsiFile.isValid())
return false; // will be committed later
// it is here where the reparse happens and old file contents replaced
InjectedLanguageUtil.enumerate(
documentWindow,
hostPsiFile,
(injectedPsi, places) -> {
DocumentWindow newDocument =
(DocumentWindow) injectedPsi.getViewProvider().getDocument();
if (newDocument != null) {
PsiDocumentManagerBase.checkConsistency(injectedPsi, newDocument);
newDocuments.add(newDocument);
}
});
return true;
};
final Runnable commitInjectionsRunnable =
() -> {
if (myProgress.isCanceled()) return;
JobLauncher.getInstance()
.invokeConcurrentlyUnderProgress(
new ArrayList<>(injected), myProgress, true, commitProcessor);
synchronized (ourInjectionPsiLock) {
injected.clear();
injected.addAll(newDocuments);
}
};
if (synchronously) {
if (Thread.holdsLock(PsiLock.LOCK)) {
// hack for the case when docCommit was called from within PSI modification, e.g. in
// formatter.
// we can't spawn threads to do injections there, otherwise a deadlock is imminent
ContainerUtil.process(new ArrayList<>(injected), commitProcessor);
} else {
commitInjectionsRunnable.run();
}
} else {
JobLauncher.getInstance()
.submitToJobThread(
() ->
ApplicationManagerEx.getApplicationEx()
.tryRunReadAction(commitInjectionsRunnable),
null);
}
}
@Override
public PsiLanguageInjectionHost getInjectionHost(@NotNull PsiElement element) {
final PsiFile file = element.getContainingFile();
final VirtualFile virtualFile = file == null ? null : file.getVirtualFile();
if (virtualFile instanceof VirtualFileWindow) {
PsiElement host =
FileContextUtil.getFileContext(
file); // use utility method in case the file's overridden getContext()
if (host instanceof PsiLanguageInjectionHost) {
return (PsiLanguageInjectionHost) host;
}
}
return null;
}
@Override
@NotNull
public TextRange injectedToHost(
@NotNull PsiElement injectedContext, @NotNull TextRange injectedTextRange) {
PsiFile file = injectedContext.getContainingFile();
if (file == null) return injectedTextRange;
Document document = PsiDocumentManager.getInstance(file.getProject()).getCachedDocument(file);
if (!(document instanceof DocumentWindowImpl)) return injectedTextRange;
DocumentWindowImpl documentWindow = (DocumentWindowImpl) document;
return documentWindow.injectedToHost(injectedTextRange);
}
@Override
public int injectedToHost(@NotNull PsiElement element, int offset) {
PsiFile file = element.getContainingFile();
if (file == null) return offset;
Document document = PsiDocumentManager.getInstance(file.getProject()).getCachedDocument(file);
if (!(document instanceof DocumentWindowImpl)) return offset;
DocumentWindowImpl documentWindow = (DocumentWindowImpl) document;
return documentWindow.injectedToHost(offset);
}
// used only from tests => no need for complex synchronization
private final Set<MultiHostInjector> myManualInjectors =
Collections.synchronizedSet(new LinkedHashSet<MultiHostInjector>());
private volatile ClassMapCachingNulls<MultiHostInjector> cachedInjectors;
public void processInjectableElements(
Collection<PsiElement> in, Processor<PsiElement> processor) {
ClassMapCachingNulls<MultiHostInjector> map = getInjectorMap();
for (PsiElement element : in) {
if (map.get(element.getClass()) != null) processor.process(element);
}
}
private ClassMapCachingNulls<MultiHostInjector> getInjectorMap() {
ClassMapCachingNulls<MultiHostInjector> cached = cachedInjectors;
if (cached != null) {
return cached;
}
Map<Class, MultiHostInjector[]> injectors = ContainerUtil.newHashMap();
List<MultiHostInjector> allInjectors = ContainerUtil.newArrayList();
allInjectors.addAll(myManualInjectors);
Collections.addAll(
allInjectors, MultiHostInjector.MULTIHOST_INJECTOR_EP_NAME.getExtensions(myProject));
if (LanguageInjector.EXTENSION_POINT_NAME.getExtensions().length > 0) {
allInjectors.add(PsiManagerRegisteredInjectorsAdapter.INSTANCE);
}
for (MultiHostInjector injector : allInjectors) {
for (Class<? extends PsiElement> place : injector.elementsToInjectIn()) {
LOG.assertTrue(place != null, injector);
MultiHostInjector[] existing = injectors.get(place);
injectors.put(
place,
existing == null
? new MultiHostInjector[] {injector}
: ArrayUtil.append(existing, injector));
}
}
ClassMapCachingNulls<MultiHostInjector> result =
new ClassMapCachingNulls<>(injectors, new MultiHostInjector[0], allInjectors);
cachedInjectors = result;
return result;
}
private void clearInjectorCache() {
cachedInjectors = null;
}
@Override
public void registerMultiHostInjector(@NotNull MultiHostInjector injector) {
myManualInjectors.add(injector);
clearInjectorCache();
}
@Override
public boolean unregisterMultiHostInjector(@NotNull MultiHostInjector injector) {
try {
return myManualInjectors.remove(injector);
} finally {
clearInjectorCache();
}
}
@Override
public String getUnescapedText(@NotNull final PsiElement injectedNode) {
final StringBuilder text = new StringBuilder(injectedNode.getTextLength());
// gather text from (patched) leaves
injectedNode.accept(
new PsiRecursiveElementWalkingVisitor() {
@Override
public void visitElement(PsiElement element) {
String leafText = InjectedLanguageUtil.getUnescapedLeafText(element, false);
if (leafText != null) {
text.append(leafText);
return;
}
super.visitElement(element);
}
});
return text.toString();
}
/**
* intersection may spread over several injected fragments
*
* @param rangeToEdit range in encoded(raw) PSI
* @return list of ranges in encoded (raw) PSI
*/
@Override
@SuppressWarnings({"ConstantConditions", "unchecked"})
@NotNull
public List<TextRange> intersectWithAllEditableFragments(
@NotNull PsiFile injectedPsi, @NotNull TextRange rangeToEdit) {
Place shreds = InjectedLanguageUtil.getShreds(injectedPsi);
if (shreds == null) return Collections.emptyList();
Object result = null; // optimization: TextRange or ArrayList
int count = 0;
int offset = 0;
for (PsiLanguageInjectionHost.Shred shred : shreds) {
TextRange encodedRange =
TextRange.from(
offset + shred.getPrefix().length(), shred.getRangeInsideHost().getLength());
TextRange intersection = encodedRange.intersection(rangeToEdit);
if (intersection != null) {
count++;
if (count == 1) {
result = intersection;
} else if (count == 2) {
TextRange range = (TextRange) result;
if (range.isEmpty()) {
result = intersection;
count = 1;
} else if (intersection.isEmpty()) {
count = 1;
} else {
List<TextRange> list = new ArrayList<>();
list.add(range);
list.add(intersection);
result = list;
}
} else if (intersection.isEmpty()) {
count--;
} else {
((List<TextRange>) result).add(intersection);
}
}
offset +=
shred.getPrefix().length()
+ shred.getRangeInsideHost().getLength()
+ shred.getSuffix().length();
}
return count == 0
? Collections.emptyList()
: count == 1 ? Collections.singletonList((TextRange) result) : (List<TextRange>) result;
}
@Override
public boolean isInjectedFragment(@NotNull final PsiFile file) {
return file.getViewProvider() instanceof InjectedFileViewProvider;
}
@Override
public PsiElement findInjectedElementAt(@NotNull PsiFile hostFile, int hostDocumentOffset) {
return InjectedLanguageUtil.findInjectedElementNoCommit(hostFile, hostDocumentOffset);
}
@Override
public void dropFileCaches(@NotNull PsiFile file) {
InjectedLanguageUtil.clearCachedInjectedFragmentsForFile(file);
}
@Override
public PsiFile getTopLevelFile(@NotNull PsiElement element) {
return InjectedLanguageUtil.getTopLevelFile(element);
}
@NotNull
@Override
public List<DocumentWindow> getCachedInjectedDocuments(@NotNull PsiFile hostPsiFile) {
return InjectedLanguageUtil.getCachedInjectedDocuments(hostPsiFile);
}
@Override
public void enumerate(
@NotNull PsiElement host, @NotNull PsiLanguageInjectionHost.InjectedPsiVisitor visitor) {
InjectedLanguageUtil.enumerate(host, visitor);
}
@Override
public void enumerateEx(
@NotNull PsiElement host,
@NotNull PsiFile containingFile,
boolean probeUp,
@NotNull PsiLanguageInjectionHost.InjectedPsiVisitor visitor) {
InjectedLanguageUtil.enumerate(host, containingFile, probeUp, visitor);
}
@NotNull
@Override
public List<TextRange> getNonEditableFragments(@NotNull DocumentWindow window) {
List<TextRange> result = ContainerUtil.newArrayList();
int offset = 0;
for (PsiLanguageInjectionHost.Shred shred : ((DocumentWindowImpl) window).getShreds()) {
Segment hostRange = shred.getHostRangeMarker();
if (hostRange == null) continue;
offset = appendRange(result, offset, shred.getPrefix().length());
offset += hostRange.getEndOffset() - hostRange.getStartOffset();
offset = appendRange(result, offset, shred.getSuffix().length());
}
return result;
}
private static int appendRange(List<TextRange> result, int start, int length) {
if (length > 0) {
int lastIndex = result.size() - 1;
TextRange lastRange = lastIndex >= 0 ? result.get(lastIndex) : null;
if (lastRange != null && lastRange.getEndOffset() == start) {
result.set(lastIndex, lastRange.grown(length));
} else {
result.add(TextRange.from(start, length));
}
}
return start + length;
}
private final Map<Class, MultiHostInjector[]> myInjectorsClone = new HashMap<>();
@TestOnly
public static void pushInjectors(@NotNull Project project) {
InjectedLanguageManagerImpl cachedManager =
(InjectedLanguageManagerImpl) project.getUserData(INSTANCE_CACHE);
if (cachedManager == null) return;
try {
assert cachedManager.myInjectorsClone.isEmpty() : cachedManager.myInjectorsClone;
} finally {
cachedManager.myInjectorsClone.clear();
}
cachedManager.myInjectorsClone.putAll(cachedManager.getInjectorMap().getBackingMap());
}
@TestOnly
public static void checkInjectorsAreDisposed(@NotNull Project project) {
InjectedLanguageManagerImpl cachedManager =
(InjectedLanguageManagerImpl) project.getUserData(INSTANCE_CACHE);
if (cachedManager == null) {
return;
}
try {
ClassMapCachingNulls<MultiHostInjector> cached = cachedManager.cachedInjectors;
if (cached == null) return;
for (Map.Entry<Class, MultiHostInjector[]> entry : cached.getBackingMap().entrySet()) {
Class key = entry.getKey();
if (cachedManager.myInjectorsClone.isEmpty()) return;
MultiHostInjector[] oldInjectors = cachedManager.myInjectorsClone.get(key);
for (MultiHostInjector injector : entry.getValue()) {
if (ArrayUtil.indexOf(oldInjectors, injector) == -1) {
throw new AssertionError("Injector was not disposed: " + key + " -> " + injector);
}
}
}
} finally {
cachedManager.myInjectorsClone.clear();
}
}
interface InjProcessor {
boolean process(PsiElement element, MultiHostInjector injector);
}
void processInPlaceInjectorsFor(@NotNull PsiElement element, @NotNull InjProcessor processor) {
MultiHostInjector[] infos = getInjectorMap().get(element.getClass());
if (infos != null) {
final boolean dumb = myDumbService.isDumb();
for (MultiHostInjector injector : infos) {
if (dumb && !DumbService.isDumbAware(injector)) {
continue;
}
if (!processor.process(element, injector)) return;
}
}
}
@Override
@Nullable
public List<Pair<PsiElement, TextRange>> getInjectedPsiFiles(@NotNull final PsiElement host) {
if (!(host instanceof PsiLanguageInjectionHost)
|| !((PsiLanguageInjectionHost) host).isValidHost()) {
return null;
}
final PsiElement inTree = InjectedLanguageUtil.loadTree(host, host.getContainingFile());
final List<Pair<PsiElement, TextRange>> result = new SmartList<>();
InjectedLanguageUtil.enumerate(
inTree,
(injectedPsi, places) -> {
for (PsiLanguageInjectionHost.Shred place : places) {
if (place.getHost() == inTree) {
result.add(new Pair<>(injectedPsi, place.getRangeInsideHost()));
}
}
});
return result.isEmpty() ? null : result;
}
private static class PsiManagerRegisteredInjectorsAdapter implements MultiHostInjector {
public static final PsiManagerRegisteredInjectorsAdapter INSTANCE =
new PsiManagerRegisteredInjectorsAdapter();
@Override
public void getLanguagesToInject(
@NotNull final MultiHostRegistrar injectionPlacesRegistrar, @NotNull PsiElement context) {
final PsiLanguageInjectionHost host = (PsiLanguageInjectionHost) context;
InjectedLanguagePlaces placesRegistrar =
(language, rangeInsideHost, prefix, suffix) ->
injectionPlacesRegistrar
.startInjecting(language)
.addPlace(prefix, suffix, host, rangeInsideHost)
.doneInjecting();
for (LanguageInjector injector :
Extensions.getExtensions(LanguageInjector.EXTENSION_POINT_NAME)) {
injector.getLanguagesToInject(host, placesRegistrar);
}
}
@Override
@NotNull
public List<? extends Class<? extends PsiElement>> elementsToInjectIn() {
return Collections.singletonList(PsiLanguageInjectionHost.class);
}
}
}
@Override
public void startRunInjectors(@NotNull final Document hostDocument, final boolean synchronously) {
if (myProject.isDisposed()) return;
if (!synchronously && ApplicationManager.getApplication().isWriteAccessAllowed()) return;
// use cached to avoid recreate PSI in alien project
final PsiDocumentManager documentManager = PsiDocumentManager.getInstance(myProject);
final PsiFile hostPsiFile = documentManager.getCachedPsiFile(hostDocument);
if (hostPsiFile == null) return;
final ConcurrentList<DocumentWindow> injected =
InjectedLanguageUtil.getCachedInjectedDocuments(hostPsiFile);
if (injected.isEmpty()) return;
if (myProgress.isCanceled()) {
myProgress = new DaemonProgressIndicator();
}
final Set<DocumentWindow> newDocuments = Collections.synchronizedSet(new THashSet<>());
final Processor<DocumentWindow> commitProcessor =
documentWindow -> {
if (myProject.isDisposed()) return false;
ProgressIndicator indicator = ProgressManager.getInstance().getProgressIndicator();
if (indicator != null && indicator.isCanceled()) return false;
if (documentManager.isUncommited(hostDocument) || !hostPsiFile.isValid())
return false; // will be committed later
// it is here where the reparse happens and old file contents replaced
InjectedLanguageUtil.enumerate(
documentWindow,
hostPsiFile,
(injectedPsi, places) -> {
DocumentWindow newDocument =
(DocumentWindow) injectedPsi.getViewProvider().getDocument();
if (newDocument != null) {
PsiDocumentManagerBase.checkConsistency(injectedPsi, newDocument);
newDocuments.add(newDocument);
}
});
return true;
};
final Runnable commitInjectionsRunnable =
() -> {
if (myProgress.isCanceled()) return;
JobLauncher.getInstance()
.invokeConcurrentlyUnderProgress(
new ArrayList<>(injected), myProgress, true, commitProcessor);
synchronized (ourInjectionPsiLock) {
injected.clear();
injected.addAll(newDocuments);
}
};
if (synchronously) {
if (Thread.holdsLock(PsiLock.LOCK)) {
// hack for the case when docCommit was called from within PSI modification, e.g. in
// formatter.
// we can't spawn threads to do injections there, otherwise a deadlock is imminent
ContainerUtil.process(new ArrayList<>(injected), commitProcessor);
} else {
commitInjectionsRunnable.run();
}
} else {
JobLauncher.getInstance()
.submitToJobThread(
() ->
ApplicationManagerEx.getApplicationEx()
.tryRunReadAction(commitInjectionsRunnable),
null);
}
}
