com.intellij.psi.impl.source.PsiFileImpl Java Examples

@Override
protected PsiFile createFile(@NotNull Language lang) {
  ParserDefinition parserDefinition = getDefinition(lang);
  if (parserDefinition == null) {
    return null;
  }

  if (lang.is(TEMPLATE_DATA_LANGUAGE)) {
    PsiFileImpl file = (PsiFileImpl) parserDefinition.createFile(this);
    file.setContentElementType(TEMPLATE_DATA_ELEMENT_TYPE);
    return file;
  } else if (lang.isKindOf(BASE_LANGUAGE)) {
    return parserDefinition.createFile(this);
  } else {
    return null;
  }
}
 

/**
 * Order is deterministic. First element matches {@link FileViewProvider#getStubBindingRoot()}
 */
@Nonnull
public static List<Pair<IStubFileElementType, PsiFile>> getStubbedRoots(@Nonnull FileViewProvider viewProvider) {
  final List<Trinity<Language, IStubFileElementType, PsiFile>> roots = new SmartList<>();
  final PsiFile stubBindingRoot = viewProvider.getStubBindingRoot();
  for (Language language : viewProvider.getLanguages()) {
    final PsiFile file = viewProvider.getPsi(language);
    if (file instanceof PsiFileImpl) {
      final IElementType type = ((PsiFileImpl)file).getElementTypeForStubBuilder();
      if (type != null) {
        roots.add(Trinity.create(language, (IStubFileElementType)type, file));
      }
    }
  }

  ContainerUtil.sort(roots, (o1, o2) -> {
    if (o1.third == stubBindingRoot) return o2.third == stubBindingRoot ? 0 : -1;
    else if (o2.third == stubBindingRoot) return 1;
    else return StringUtil.compare(o1.first.getID(), o2.first.getID(), false);
  });

  return ContainerUtil.map(roots, trinity -> Pair.create(trinity.second, trinity.third));
}
 

@SuppressWarnings("AssignmentToStaticFieldFromInstanceMethod")
public void reparseFileFromText(@Nonnull PsiFileImpl file) {
  ApplicationManager.getApplication().assertIsDispatchThread();
  if (isCommitInProgress()) throw new IllegalStateException("Re-entrant commit is not allowed");

  FileElement node = file.calcTreeElement();
  CharSequence text = node.getChars();
  ourIsFullReparseInProgress = true;
  try {
    WriteAction.run(() -> {
      ProgressIndicator indicator = ProgressIndicatorProvider.getGlobalProgressIndicator();
      if (indicator == null) indicator = new EmptyProgressIndicator();
      DiffLog log = BlockSupportImpl.makeFullParse(file, node, text, indicator, text).log;
      log.doActualPsiChange(file);
      file.getViewProvider().contentsSynchronized();
    });
  }
  finally {
    ourIsFullReparseInProgress = false;
  }
}
 

@Nonnull
static ReparseResult reparse(@Nonnull final PsiFile file,
                             @Nonnull FileASTNode oldFileNode,
                             @Nonnull TextRange changedPsiRange,
                             @Nonnull final CharSequence newFileText,
                             @Nonnull final ProgressIndicator indicator,
                             @Nonnull CharSequence lastCommittedText) {
  PsiFileImpl fileImpl = (PsiFileImpl)file;

  final Couple<ASTNode> reparseableRoots = findReparseableRoots(fileImpl, oldFileNode, changedPsiRange, newFileText);
  if (reparseableRoots == null) {
    return makeFullParse(fileImpl, oldFileNode, newFileText, indicator, lastCommittedText);
  }
  ASTNode oldRoot = reparseableRoots.first;
  ASTNode newRoot = reparseableRoots.second;
  DiffLog diffLog = mergeTrees(fileImpl, oldRoot, newRoot, indicator, lastCommittedText);
  return new ReparseResult(diffLog, oldRoot, newRoot);
}
 

private static boolean isReplaceWholeNode(@Nonnull PsiFileImpl fileImpl, @Nonnull ASTNode newRoot) throws ReparsedSuccessfullyException {
  final Boolean data = fileImpl.getUserData(DO_NOT_REPARSE_INCREMENTALLY);
  if (data != null) fileImpl.putUserData(DO_NOT_REPARSE_INCREMENTALLY, null);

  boolean explicitlyMarkedDeep = Boolean.TRUE.equals(data);

  if (explicitlyMarkedDeep || isTooDeep(fileImpl)) {
    return true;
  }

  final ASTNode childNode = newRoot.getFirstChildNode();  // maybe reparsed in PsiBuilderImpl and have thrown exception here
  boolean childTooDeep = isTooDeep(childNode);
  if (childTooDeep) {
    childNode.putUserData(TREE_DEPTH_LIMIT_EXCEEDED, null);
    fileImpl.putUserData(TREE_DEPTH_LIMIT_EXCEEDED, Boolean.TRUE);
  }
  return childTooDeep;
}
 

@Nullable
private static SmartPointerElementInfo createAnchorInfo(@Nonnull PsiElement element, @Nonnull PsiFile containingFile) {
  if (element instanceof StubBasedPsiElement && containingFile instanceof PsiFileImpl) {
    IStubFileElementType stubType = ((PsiFileImpl)containingFile).getElementTypeForStubBuilder();
    if (stubType != null && stubType.shouldBuildStubFor(containingFile.getViewProvider().getVirtualFile())) {
      StubBasedPsiElement stubPsi = (StubBasedPsiElement)element;
      int stubId = PsiAnchor.calcStubIndex(stubPsi);
      if (stubId != -1) {
        return new AnchorElementInfo(element, (PsiFileImpl)containingFile, stubId, stubPsi.getElementType());
      }
    }
  }

  Pair<Identikit.ByAnchor, PsiElement> pair = Identikit.withAnchor(element, LanguageUtil.getRootLanguage(containingFile));
  if (pair != null) {
    return new AnchorElementInfo(pair.second, containingFile, pair.first);
  }
  return null;
}
 

@Nonnull
public final AstSpine getStubbedSpine() {
  AstSpine result = myStubbedSpine;
  if (result == null) {
    PsiFileImpl file = (PsiFileImpl)getPsi();
    IStubFileElementType type = file.getElementTypeForStubBuilder();
    if (type == null) return AstSpine.EMPTY_SPINE;

    result = RecursionManager.doPreventingRecursion(file, false, () -> new AstSpine(calcStubbedDescendants(type.getBuilder())));
    if (result == null) {
      throw new StackOverflowPreventedException("Endless recursion prevented");
    }
    myStubbedSpine = result;
  }
  return result;
}
 

@Override
protected PsiFile getPsiInner(@Nonnull final Language target) {
  PsiFileImpl file = myRoots.get(target);
  if (file == null) {
    if (!shouldCreatePsi()) return null;
    if (target != getBaseLanguage() && !getLanguages().contains(target)) {
      return null;
    }
    file = createPsiFileImpl(target);
    if (file == null) return null;
    if (myOriginal != null) {
      final PsiFile originalFile = myOriginal.getPsi(target);
      if (originalFile != null) {
        file.setOriginalFile(originalFile);
      }
    }
    file = ConcurrencyUtil.cacheOrGet(myRoots, target, file);
  }
  return file;
}
 

private ASTNode failedToBindStubToAst(@Nonnull PsiFileImpl file, @Nonnull final FileElement fileElement) {
  VirtualFile vFile = file.getVirtualFile();
  StubTree stubTree = file.getStubTree();
  final String stubString = stubTree != null ? ((PsiFileStubImpl)stubTree.getRoot()).printTree() : null;
  final String astString = RecursionManager.doPreventingRecursion("failedToBindStubToAst", true, () -> DebugUtil.treeToString(fileElement, true));

  @NonNls final String message =
          "Failed to bind stub to AST for element " + getClass() + " in " + (vFile == null ? "<unknown file>" : vFile.getPath()) + "\nFile:\n" + file + "@" + System.identityHashCode(file);

  final String creationTraces = ourTraceStubAstBinding ? dumpCreationTraces(fileElement) : null;

  List<Attachment> attachments = new ArrayList<>();
  if (stubString != null) {
    attachments.add(new Attachment("stubTree.txt", stubString));
  }
  if (astString != null) {
    attachments.add(new Attachment("ast.txt", astString));
  }
  if (creationTraces != null) {
    attachments.add(new Attachment("creationTraces.txt", creationTraces));
  }

  throw new RuntimeExceptionWithAttachments(message, attachments.toArray(Attachment.EMPTY_ARRAY));
}
 

/**
 * Ensures this element is AST-based. This is an expensive operation that might take significant time and allocate lots of objects,
 * so it should be to be avoided if possible.
 *
 * @return an AST node corresponding to this element. If the element is currently operating via stubs,
 * this causes AST to be loaded for the whole file and all stub-based PSI elements in this file (including the current one)
 * to be switched from stub to AST. So, after this call {@link #getStub()} will return null.
 */
@Override
@Nonnull
public ASTNode getNode() {
  if (mySubstrateRef instanceof SubstrateRef.StubRef) {
    ApplicationManager.getApplication().assertReadAccessAllowed();
    PsiFileImpl file = (PsiFileImpl)getContainingFile();
    if (!file.isValid()) throw new PsiInvalidElementAccessException(file);

    FileElement treeElement = file.getTreeElement();
    if (treeElement != null && mySubstrateRef instanceof SubstrateRef.StubRef) {
      return notBoundInExistingAst(file, treeElement);
    }

    treeElement = file.calcTreeElement();
    if (mySubstrateRef instanceof SubstrateRef.StubRef) {
      return failedToBindStubToAst(file, treeElement);
    }
  }

  return mySubstrateRef.getNode();
}
 

static OffsetsInFile toInjectedIfAny(PsiFile originalFile, OffsetsInFile hostCopyOffsets) {
  CompletionAssertions.assertHostInfo(hostCopyOffsets.getFile(), hostCopyOffsets.getOffsets());

  int hostStartOffset = hostCopyOffsets.getOffsets().getOffset(CompletionInitializationContext.START_OFFSET);
  OffsetsInFile translatedOffsets = hostCopyOffsets.toInjectedIfAny(hostStartOffset);
  if (translatedOffsets != hostCopyOffsets) {
    PsiFile injected = translatedOffsets.getFile();
    if (originalFile != injected && injected instanceof PsiFileImpl && InjectedLanguageManager.getInstance(originalFile.getProject()).isInjectedFragment(originalFile)) {
      ((PsiFileImpl)injected).setOriginalFile(originalFile);
    }
    DocumentWindow documentWindow = InjectedLanguageUtil.getDocumentWindow(injected);
    CompletionAssertions.assertInjectedOffsets(hostStartOffset, injected, documentWindow);

    if (injected.getTextRange().contains(translatedOffsets.getOffsets().getOffset(CompletionInitializationContext.START_OFFSET))) {
      return translatedOffsets;
    }
  }

  return hostCopyOffsets;
}
 

private void reparseParallelTrees(PsiFile changedFile, PsiToDocumentSynchronizer synchronizer) {
  List<PsiFile> allFiles = changedFile.getViewProvider().getAllFiles();
  if (allFiles.size() <= 1) {
    return;
  }

  CharSequence newText = changedFile.getNode().getChars();
  for (final PsiFile file : allFiles) {
    FileElement fileElement = file == changedFile ? null : ((PsiFileImpl)file).getTreeElement();
    Runnable changeAction = fileElement == null ? null : reparseFile(file, fileElement, newText);
    if (changeAction == null) continue;

    synchronizer.setIgnorePsiEvents(true);
    try {
      CodeStyleManager.getInstance(file.getProject()).performActionWithFormatterDisabled(changeAction);
    }
    finally {
      synchronizer.setIgnorePsiEvents(false);
    }
  }
}
 

private static void diagnoseInvalidRange(@Nonnull PsiElement scope, PsiFile file, FileViewProvider viewProvider, CharSequence buffer, TextRange range) {
  String msg = "Range for element: '" + scope + "' = " + range + " is out of file '" + file + "' range: " + file.getTextRange();
  msg += "; file contents length: " + buffer.length();
  msg += "\n file provider: " + viewProvider;
  Document document = viewProvider.getDocument();
  if (document != null) {
    msg += "\n committed=" + PsiDocumentManager.getInstance(file.getProject()).isCommitted(document);
  }
  for (Language language : viewProvider.getLanguages()) {
    final PsiFile root = viewProvider.getPsi(language);
    msg += "\n root " +
           language +
           " length=" +
           root.getTextLength() +
           (root instanceof PsiFileImpl ? "; contentsLoaded=" + ((PsiFileImpl)root).isContentsLoaded() : "");
  }

  LOG.error(msg);
}
 

private void diagnoseLengthMismatch(VirtualFile vFile, boolean wasIndexedAlready, @Nullable Document document, boolean saved, @Nullable PsiFile cachedPsi) {
  String message = "Outdated stub in index: " +
                   vFile +
                   " " +
                   getIndexingStampInfo(vFile) +
                   ", doc=" +
                   document +
                   ", docSaved=" +
                   saved +
                   ", wasIndexedAlready=" +
                   wasIndexedAlready +
                   ", queried at " +
                   vFile.getTimeStamp();
  message += "\ndoc length=" + (document == null ? -1 : document.getTextLength()) + "\nfile length=" + vFile.getLength();
  if (cachedPsi != null) {
    message += "\ncached PSI " + cachedPsi.getClass();
    if (cachedPsi instanceof PsiFileImpl && ((PsiFileImpl)cachedPsi).isContentsLoaded()) {
      message += "\nPSI length=" + cachedPsi.getTextLength();
    }
    List<Project> projects = ContainerUtil.findAll(ProjectManager.getInstance().getOpenProjects(), p -> PsiManagerEx.getInstanceEx(p).getFileManager().findCachedViewProvider(vFile) != null);
    message += "\nprojects with file: " + (LOG.isDebugEnabled() ? projects.toString() : projects.size());
  }

  processError(vFile, message, new Exception());
}
 

public void testUsageViewDoesNotHoldPsiFilesOrDocuments() throws Exception {
  PsiFile psiFile = createFile("X.java", "public class X{} //iuggjhfg");
  Usage[] usages = new Usage[100];
  for (int i = 0; i < usages.length; i++) {
    usages[i] = createUsage(psiFile,i);
  }

  UsageView usageView = UsageViewManager.getInstance(getProject()).createUsageView(UsageTarget.EMPTY_ARRAY, usages, new UsageViewPresentation(), null);

  Disposer.register(getTestRootDisposable(), usageView);

  ((EncodingManagerImpl)EncodingManager.getInstance()).clearDocumentQueue();
  FileDocumentManager.getInstance().saveAllDocuments();
  UIUtil.dispatchAllInvocationEvents();

  LeakHunter.checkLeak(usageView, PsiFileImpl.class);
  LeakHunter.checkLeak(usageView, Document.class);
}
 

@Nullable
private PsiFileSystemItem doResolve(@Nonnull final FileIncludeInfo info, @Nonnull final PsiFile context) {
  if (info instanceof FileIncludeInfoImpl) {
    String id = ((FileIncludeInfoImpl)info).providerId;
    FileIncludeProvider provider = id == null ? null : myProviderMap.get(id);
    final PsiFileSystemItem resolvedByProvider = provider == null ? null : provider.resolveIncludedFile(info, context);
    if (resolvedByProvider != null) {
      return resolvedByProvider;
    }
  }

  PsiFileImpl psiFile = (PsiFileImpl)myPsiFileFactory.createFileFromText("dummy.txt", PlainTextFileType.INSTANCE, info.path);
  psiFile.setOriginalFile(context);
  return new FileReferenceSet(psiFile) {
    @Override
    protected boolean useIncludingFileAsContext() {
      return false;
    }
  }.resolve();
}
 

@Nullable
@Override
protected PsiFile createFile(@NotNull Language lang) {
    if (lang == myTemplateDataLanguage) {
        PsiFileImpl file = (PsiFileImpl) LanguageParserDefinitions.INSTANCE.forLanguage(lang).createFile(this);
        file.setContentElementType(TEMPLATE_DATA);

        return file;
    } else if (lang == FluidLanguage.INSTANCE) {

        return LanguageParserDefinitions.INSTANCE.forLanguage(lang).createFile(this);
    } else {

        return null;
    }
}
 

@Nonnull
public TreeChangeEventImpl performActualPsiChange(@Nonnull PsiFile file) {
  TreeAspect modelAspect = PomManager.getModel(file.getProject()).getModelAspect(TreeAspect.class);
  TreeChangeEventImpl event = new TreeChangeEventImpl(modelAspect, ((PsiFileImpl)file).calcTreeElement());
  for (LogEntry entry : myEntries) {
    entry.doActualPsiChange(file, event);
  }
  file.subtreeChanged();
  return event;
}
 

@Override
public ASTNode parseContents(ASTNode chameleon) {
  final CharTable charTable = SharedImplUtil.findCharTableByTree(chameleon);
  final FileElement fileElement = TreeUtil.getFileElement((TreeElement)chameleon);
  final PsiFile psiFile = (PsiFile)fileElement.getPsi();
  PsiFile originalPsiFile = psiFile.getOriginalFile();

  final TemplateLanguageFileViewProvider viewProvider = (TemplateLanguageFileViewProvider)originalPsiFile.getViewProvider();

  final Language templateLanguage = getTemplateFileLanguage(viewProvider);
  final CharSequence sourceCode = chameleon.getChars();

  RangesCollector collector = new RangesCollector();
  final PsiFile templatePsiFile = createTemplateFile(psiFile, templateLanguage, sourceCode, viewProvider, collector);

  final FileElement templateFileElement = ((PsiFileImpl)templatePsiFile).calcTreeElement();

  DebugUtil.startPsiModification("template language parsing");
  try {
    prepareParsedTemplateFile(templateFileElement);
    insertOuters(templateFileElement, sourceCode, collector.myRanges, charTable);

    TreeElement childNode = templateFileElement.getFirstChildNode();

    DebugUtil.checkTreeStructure(templateFileElement);
    DebugUtil.checkTreeStructure(chameleon);
    if (fileElement != chameleon) {
      DebugUtil.checkTreeStructure(psiFile.getNode());
      DebugUtil.checkTreeStructure(originalPsiFile.getNode());
    }

    return childNode;
  }
  finally {
    DebugUtil.finishPsiModification();
  }
}
 

@Override
void doActualPsiChange(@Nonnull PsiFile file, @Nonnull TreeChangeEventImpl event) {
  PsiFileImpl fileImpl = (PsiFileImpl)file;
  final int oldLength = myOldNode.getTextLength();
  PsiManagerImpl manager = (PsiManagerImpl)fileImpl.getManager();
  BlockSupportImpl.sendBeforeChildrenChangeEvent(manager, fileImpl, false);
  if (myOldNode.getFirstChildNode() != null) myOldNode.rawRemoveAllChildren();
  final TreeElement firstChildNode = myNewNode.getFirstChildNode();
  if (firstChildNode != null) myOldNode.rawAddChildren(firstChildNode);
  fileImpl.calcTreeElement().setCharTable(myNewNode.getCharTable());
  myOldNode.subtreeChanged();
  BlockSupportImpl.sendAfterChildrenChangedEvent(manager, fileImpl, oldLength, false);
}
 

@Nonnull
private static List<Pair<PsiFileImpl, FileASTNode>> getAllFileNodes(@Nonnull PsiFile file) {
  if (!file.isValid()) {
    throw new PsiInvalidElementAccessException(file, "File " + file + " is invalid, can't commit");
  }
  if (file instanceof PsiCompiledFile) {
    throw new IllegalArgumentException("Can't commit ClsFile: " + file);
  }

  return ContainerUtil.map(file.getViewProvider().getAllFiles(), root -> Pair.create((PsiFileImpl)root, root.getNode()));
}
 

@Override
protected PsiFile createFile(Language lang) {
  // creating file for main lang (HTML)
  if (lang == myTemplateDataLanguage) {
    PsiFileImpl file = (PsiFileImpl) LanguageParserDefinitions.INSTANCE.forLanguage(lang).createFile(this);
    file.setContentElementType(templateDataElementType);
    return file;
  } else if (lang == DustLanguage.INSTANCE) {
    return LanguageParserDefinitions.INSTANCE.forLanguage(lang).createFile(this);
  } else {
    return null;
  }
}
 

private static PsiFile getPsiFile(@Nonnull Project project, @Nonnull VirtualFile file) {
  PsiFile psi = PsiManager.getInstance(project).findFile(file);
  if (!(psi instanceof PsiFileImpl) || ((PsiFileImpl)psi).isContentsLoaded()) {
    return psi;
  }

  FileType fileType = file.getFileType();
  if (!(fileType instanceof LanguageFileType)) return null;

  return FileContentImpl.createFileFromText(project, psi.getViewProvider().getContents(), (LanguageFileType)fileType, file, file.getName());
}
 

@Nonnull
public static DiffLog mergeTrees(@Nonnull final PsiFileImpl fileImpl,
                                 @Nonnull final ASTNode oldRoot,
                                 @Nonnull final ASTNode newRoot,
                                 @Nonnull ProgressIndicator indicator,
                                 @Nonnull CharSequence lastCommittedText) {
  PsiUtilCore.ensureValid(fileImpl);
  if (newRoot instanceof FileElement) {
    FileElement fileImplElement = fileImpl.getTreeElement();
    if (fileImplElement != null) {
      ((FileElement)newRoot).setCharTable(fileImplElement.getCharTable());
    }
  }

  try {
    newRoot.putUserData(TREE_TO_BE_REPARSED, Pair.create(oldRoot, lastCommittedText));
    if (isReplaceWholeNode(fileImpl, newRoot)) {
      DiffLog treeChangeEvent = replaceElementWithEvents(oldRoot, newRoot);
      fileImpl.putUserData(TREE_DEPTH_LIMIT_EXCEEDED, Boolean.TRUE);

      return treeChangeEvent;
    }
    newRoot.getFirstChildNode();  // maybe reparsed in PsiBuilderImpl and have thrown exception here
  }
  catch (ReparsedSuccessfullyException e) {
    // reparsed in PsiBuilderImpl
    return e.getDiffLog();
  }
  finally {
    newRoot.putUserData(TREE_TO_BE_REPARSED, null);
  }

  final ASTShallowComparator comparator = new ASTShallowComparator(indicator);
  final ASTStructure treeStructure = createInterruptibleASTStructure(newRoot, indicator);

  DiffLog diffLog = new DiffLog();
  diffTrees(oldRoot, diffLog, comparator, treeStructure, indicator, lastCommittedText);
  return diffLog;
}
 

private static void initFileContent(@Nonnull FileContentImpl fc, Project project, PsiFile psiFile) {
  if (psiFile != null) {
    psiFile.putUserData(PsiFileImpl.BUILDING_STUB, true);
    fc.putUserData(IndexingDataKeys.PSI_FILE, psiFile);
  }

  fc.putUserData(IndexingDataKeys.PROJECT, project);
}
 

private static void mergePsi(@Nonnull PsiFile oldFile, @Nonnull ASTNode oldFileNode, @Nonnull PsiFile injectedPsi, @Nonnull ASTNode injectedNode) {
  if (!oldFile.textMatches(injectedPsi)) {
    InjectedFileViewProvider oldViewProvider = (InjectedFileViewProvider)oldFile.getViewProvider();
    oldViewProvider.performNonPhysically(() -> DebugUtil.performPsiModification("injected tree diff", () -> {
      final DiffLog diffLog = BlockSupportImpl.mergeTrees((PsiFileImpl)oldFile, oldFileNode, injectedNode, new DaemonProgressIndicator(), oldFileNode.getText());
      diffLog.doActualPsiChange(oldFile);
    }));
  }
}
 

final void setTreeParent(CompositeElement parent) {
  if (parent == myParent) return;

  PsiFileImpl file = getCachedFile(this);
  if (file != null) {
    file.beforeAstChange();
  }

  myParent = parent;
  if (parent != null && parent.getElementType() != TokenType.DUMMY_HOLDER) {
    DebugUtil.revalidateNode(this);
  }
}
 

private static boolean canHaveStub(@Nonnull PsiFile file) {
  if (!(file instanceof PsiFileImpl)) return false;

  VirtualFile vFile = file.getVirtualFile();

  IStubFileElementType elementType = ((PsiFileImpl)file).getElementTypeForStubBuilder();
  return elementType != null && vFile != null && elementType.shouldBuildStubFor(vFile);
}
 

public static int calcStubIndex(@Nonnull StubBasedPsiElement psi) {
  if (psi instanceof PsiFile) {
    return 0;
  }

  StubElement liveStub = psi instanceof StubBasedPsiElementBase ? ((StubBasedPsiElementBase)psi).getGreenStub() : psi.getStub();
  if (liveStub != null) {
    return ((StubBase)liveStub).getStubId();
  }

  return ((PsiFileImpl)psi.getContainingFile()).calcTreeElement().getStubbedSpine().getStubIndex(psi);
}
 

private static int getCurrentTextContentLength(Project project, VirtualFile vFile, Document document, PsiFile psiFile) {
  if (vFile.getFileType().isBinary()) {
    return -1;
  }
  if (psiFile instanceof PsiFileImpl && ((PsiFileImpl)psiFile).isContentsLoaded()) {
    return psiFile.getTextLength();
  }

  if (document != null) {
    return PsiDocumentManager.getInstance(project).getLastCommittedText(document).length();
  }
  return -1;
}