private static void iterateOverCarets(@Nonnull final Project project,
                                      @Nonnull final Editor hostEditor,
                                      @Nonnull final MultiCaretCodeInsightActionHandler handler) {
  PsiDocumentManager documentManager = PsiDocumentManager.getInstance(project);
  final PsiFile psiFile = documentManager.getCachedPsiFile(hostEditor.getDocument());
  documentManager.commitAllDocuments();

  hostEditor.getCaretModel().runForEachCaret(new CaretAction() {
    @Override
    public void perform(Caret caret) {
      Editor editor = hostEditor;
      if (psiFile != null) {
        Caret injectedCaret = InjectedLanguageUtil.getCaretForInjectedLanguageNoCommit(caret, psiFile);
        if (injectedCaret != null) {
          caret = injectedCaret;
          editor = caret.getEditor();
        }
      }
      final PsiFile file = PsiUtilBase.getPsiFileInEditor(caret, project);
      if (file != null) {
        handler.invoke(project, editor, caret, file);
      }
    }
  });
}
 

@Test
public void testReferencesJavaClass() {
  PsiFile javaFile =
      workspace.createPsiFile(
          new WorkspacePath("java/com/google/bin/Main.java"),
          "package com.google.bin;",
          "public class Main {",
          "  public void main() {}",
          "}");
  PsiClass javaClass = ((PsiClassOwner) javaFile).getClasses()[0];

  BuildFile file =
      createBuildFile(
          new WorkspacePath("java/com/google/BUILD"),
          "java_binary(",
          "    name = 'binary',",
          "    main_class = 'com.google.bin.Main',",
          ")");

  ArgumentList args = file.firstChildOfClass(FuncallExpression.class).getArgList();
  assertThat(args.getKeywordArgument("main_class").getValue().getReferencedElement())
      .isEqualTo(javaClass);
}
 

@Nullable
@Override
public ProblemDescriptor[] checkFile(@NotNull PsiFile file, @NotNull final InspectionManager manager, final boolean isOnTheFly) {
  if (!(file instanceof HaxeFile)) return null;
  final List<ProblemDescriptor> result = new ArrayList<ProblemDescriptor>();
  new HaxeAnnotatingVisitor() {
    @Override
    protected void handleUnresolvedReference(HaxeReferenceExpression reference) {
      PsiElement nameIdentifier = reference.getReferenceNameElement();
      if (nameIdentifier == null) return;
      result.add(manager.createProblemDescriptor(
        nameIdentifier,
        TextRange.from(0, nameIdentifier.getTextLength()),
        getDisplayName(),
        ProblemHighlightType.LIKE_UNKNOWN_SYMBOL,
        isOnTheFly
      ));
    }
  }.visitFile(file);
  return ArrayUtil.toObjectArray(result, ProblemDescriptor.class);
}
 

@RequiredUIAccess
@Override
public void update(@Nonnull AnActionEvent e) {
  Presentation presentation = e.getPresentation();

  Project project = e.getProject();
  if (project == null) {
    presentation.setEnabled(false);
    return;
  }

  final DataContext dataContext = e.getDataContext();
  Editor editor = getEditor(dataContext, project, true);
  if (editor == null) {
    presentation.setEnabled(false);
    return;
  }

  final PsiFile file = PsiUtilBase.getPsiFileInEditor(editor, project);
  if (file == null) {
    presentation.setEnabled(false);
    return;
  }

  update(presentation, project, editor, file, dataContext, e.getPlace());
}
 

@Override
protected boolean runEnable(AnActionEvent anActionEvent) {
    Object o = anActionEvent.getDataContext().getData(DataConstants.PSI_FILE);
    if (o instanceof XmlFileImpl) {
        parentFileName = ((XmlFileImpl) o).getVirtualFile().getParent().getName();
        if (isPreference(parentFileName)) {
            return true;
        }

    } else if (o instanceof PsiFile) {
        parentFileName = ((PsiFile) o).getVirtualFile().getParent().getName();
        if (isDataBase(parentFileName)) {
            return true;
        }
    }
    return false;
}
 

public static void updateIndentNotification(@Nonnull PsiFile file, boolean enforce) {
  VirtualFile vFile = file.getVirtualFile();
  if (vFile == null) return;

  if (!ApplicationManager.getApplication().isHeadlessEnvironment()
      || ApplicationManager.getApplication().isUnitTestMode() && myShowNotificationInTest)
  {
    Project project = file.getProject();
    FileEditorManager fileEditorManager = FileEditorManager.getInstance(project);
    if (fileEditorManager == null) return;
    FileEditor fileEditor = fileEditorManager.getSelectedEditor(vFile);
    if (fileEditor != null) {
      Boolean notifiedFlag = fileEditor.getUserData(NOTIFIED_FLAG);
      if (notifiedFlag == null || enforce) {
        fileEditor.putUserData(NOTIFIED_FLAG, Boolean.TRUE);
        EditorNotifications.getInstance(project).updateNotifications(vFile);
      }
    }
  }
}
 

@Override
public void elementRenamed(@NotNull final PsiElement psiElement)
{
    final String moduleName = originalFile.substring(0, originalFile.indexOf('.'));

    CommandProcessor.getInstance().executeCommand(psiElement.getProject(), new Runnable() {
        @Override
        public void run() {
            new ModuleImporter(possibleFiles,
                    moduleName,
                    (PsiFile) psiElement,
                    new SourcesLocator().getSourceLibraries(psiElement.getProject()).toArray(new SourceLibrary[0]),
                    ServiceManager.getService(psiElement.getProject(),
                            DojoSettings.class).getNamingExceptionList())
                    .findFilesThatReferenceModule(SourcesLocator.getProjectSourceDirectories(psiElement.getProject(), true), true);
        }
    },
    "Rename Dojo Module",
    "Rename Dojo Module");
}
 

@Override
protected boolean isValidForFile(@NotNull Project project, @NotNull Editor editor, @NotNull PsiFile file) {

    if(!(file instanceof PhpFile) || !DoctrineUtil.isDoctrineOrmInVendor(project)) {
        return false;
    }

    int offset = editor.getCaretModel().getOffset();
    if(offset <= 0) {
        return false;
    }

    PsiElement psiElement = file.findElementAt(offset);
    if(psiElement == null) {
        return false;
    }

    if(!PlatformPatterns.psiElement().inside(PhpClass.class).accepts(psiElement)) {
        return false;
    }

    return true;
}
 

@NotNull
static PsiFile createFromTemplate(final PsiDirectory directory, String fileName, String templateName) throws IncorrectOperationException {
    Project project = directory.getProject();
    FileTemplateManager templateManager = FileTemplateManager.getInstance(project);
    FileTemplate template = templateManager.getInternalTemplate(templateName);

    Properties properties = new Properties(templateManager.getDefaultProperties());

    String templateText;
    try {
        templateText = template.getText(properties);
    } catch (IOException e) {
        throw new RuntimeException("Unable to load template for " + templateManager.internalTemplateToSubject(templateName), e);
    }

    PsiFile file = PsiFileFactory.getInstance(project).createFileFromText(fileName, BashFileType.BASH_FILE_TYPE, templateText);
    return (PsiFile) directory.add(file);
}
 

private static boolean isValidForIndex(FileContent inputData, PsiFile psiFile) {

        String fileName = psiFile.getName();
        if(fileName.startsWith(".") || fileName.endsWith("Test")) {
            return false;
        }

        VirtualFile baseDir = ProjectUtil.getProjectDir(inputData.getProject());
        if(baseDir == null) {
            return false;
        }

        // is Test file in path name
        String relativePath = VfsUtil.getRelativePath(inputData.getFile(), baseDir, '/');
        if(relativePath != null && (relativePath.contains("/Test/") || relativePath.contains("/Fixtures/"))) {
            return false;
        }

        return true;
    }
 

public void testReferenceCanResolveDefinition() {
    PsiFile file = myFixture.configureByText(PhpFileType.INSTANCE, "<?php \n" +
            "class ActionController {" +
            "public function action() {" +
            "  $this->forward('<caret>baz');" +
            "}" +
            "}"
    );

    PsiElement elementAtCaret = file.findElementAt(myFixture.getCaretOffset()).getParent();
    PsiReference[] references = elementAtCaret.getReferences();
    for (PsiReference reference : references) {
        if (reference instanceof ControllerActionReference) {
            ResolveResult[] resolveResults = ((ControllerActionReference) reference).multiResolve(false);
            for (ResolveResult resolveResult : resolveResults) {
                assertInstanceOf(resolveResult.getElement(), Method.class);

                return;
            }
        }
    }

    fail("No TranslationReference found");
}
 

@Test
public void testFileReferenceWithinExternalWorkspaceResolves() {
  BuildFile externalFile =
      (BuildFile)
          createFileInExternalWorkspace(
              "junit",
              new WorkspacePath("BUILD"),
              "java_import(",
              "    name = 'target',",
              "    jars = ['junit-4.11.jar'],",
              ")");
  PsiFile jarFile = createFileInExternalWorkspace("junit", new WorkspacePath("junit-4.11.jar"));
  FuncallExpression target = externalFile.findRule("target");
  StringLiteral label =
      PsiUtils.findFirstChildOfClassRecursive(
          target.getKeywordArgument("jars"), StringLiteral.class);
  assertThat(label.getReferencedElement()).isEqualTo(jarFile);
}
 

private HighlightingSessionImpl(@Nonnull PsiFile psiFile, @Nonnull DaemonProgressIndicator progressIndicator, EditorColorsScheme editorColorsScheme) {
  myPsiFile = psiFile;
  myProgressIndicator = progressIndicator;
  myEditorColorsScheme = editorColorsScheme;
  myProject = psiFile.getProject();
  myDocument = PsiDocumentManager.getInstance(myProject).getDocument(psiFile);
  myEDTQueue = new TransferToEDTQueue<Runnable>("Apply highlighting results", runnable -> {
    runnable.run();
    return true;
  }, o -> myProject.isDisposed() || getProgressIndicator().isCanceled()) {
    @Override
    protected void schedule(@Nonnull Runnable updateRunnable) {
      ApplicationManager.getApplication().invokeLater(updateRunnable, ModalityState.any());
    }
  };
}
 

private static void describeFile(PsiFile file, StringBuilder builder, boolean linkToFile) {
  if (!(file instanceof BuildFile)) {
    return;
  }
  BuildFile buildFile = (BuildFile) file;
  Label label = buildFile.getBuildLabel();
  String name = label != null ? label.toString() : buildFile.getPresentableText();
  if (linkToFile) {
    builder
        .append("<a href=\"")
        .append(DocumentationManagerProtocol.PSI_ELEMENT_PROTOCOL)
        .append(LINK_TYPE_FILE)
        .append("\">")
        .append(name)
        .append("</a>");
  } else {
    builder.append(String.format("<b>%s</b>", name));
  }
  builder.append("<br><br>");
}
 

@Override
@RequiredUIAccess
protected void updateImpl(PresentationData presentationData)
{
	DotNetNamedElement value = getValue();

	presentationData.setPresentableText(getPresentableText(value));

	if(BitUtil.isSet(myFlags, ALLOW_GRAY_FILE_NAME))
	{
		PsiFile containingFile = value.getContainingFile();
		if(containingFile != null)
		{
			if(!Comparing.equal(FileUtil.getNameWithoutExtension(containingFile.getName()), value.getName()))
			{
				presentationData.setLocationString(containingFile.getName());
			}
		}
	}
}
 

@Override
public int getFileCount(ToDoSummary summary) {
  int count = 0;
  for (Iterator i = myBuilder.getAllFiles(); i.hasNext(); ) {
    PsiFile psiFile = (PsiFile)i.next();
    if (psiFile == null) { // skip invalid PSI files
      continue;
    }
    if (getTreeStructure().accept(psiFile)) {
      count++;
    }
  }
  return count;
}
 

@Override
public void fillFiles(Set<PsiFile> set, boolean recursively) {
  super.fillFiles(set, recursively);
  int count = getChildCount();
  for (int i = 0; i < count; i++) {
    PackageDependenciesNode child = (PackageDependenciesNode)getChildAt(i);
    child.fillFiles(set, true);
  }
}
 

/**
 * Determines if a file has the method in question
 * @param file
 * @param methodName
 * @param useApproximatingVisitor some dojo modules are not straight-forward. So for this case, pass true for this
 *                                and it will search a file for a property or a reference to the method name in question
 * @return
 */
public static @Nullable PsiElement fileHasMethod(PsiFile file, String methodName, boolean useApproximatingVisitor)
{
    DeclareStatementItems declareObject = new DeclareResolver().getDeclareObject(file);

    if((declareObject == null || declareObject.getMethodsToConvert() == null) && !useApproximatingVisitor)
    {
        return null;
    }

    if(declareObject != null && declareObject.getMethodsToConvert() != null)
    {
        for(JSProperty property : declareObject.getMethodsToConvert())
        {
            if(property.getName().equals(methodName))
            {
                return property;
            }
        }
    }

    if(useApproximatingVisitor)
    {
        JSMethodLookupVisitor visitor = new JSMethodLookupVisitor(methodName);
        file.acceptChildren(visitor);
        return visitor.getFoundElement();
    }

    return null;
}
 

private static void navigateToSource(PsiFile psiFile) {
  ApplicationManager.getApplication()
      .invokeLater(
          () -> {
            PsiFile psi = refreshPsiFile(psiFile);
            if (psi != null && psi.canNavigate()) {
              psi.navigate(false);
            }
          });
}
 

@Override
public Result beforeCharTyped(final char charTyped, final Project project, final Editor editor, final PsiFile file, final FileType fileType) {
  // TODO[oleg] remove this hack when API changes
  if (myReplacedTextRange != null) {
    if (myReplacedTextRange.getEndOffset() <= editor.getDocument().getTextLength()) {
      if (myRestoreStickySelection && editor instanceof EditorEx) {
        EditorEx editorEx = (EditorEx)editor;
        CaretModel caretModel = editorEx.getCaretModel();
        caretModel.moveToOffset(myLtrSelection ? myReplacedTextRange.getStartOffset() : myReplacedTextRange.getEndOffset());
        editorEx.setStickySelection(true);
        caretModel.moveToOffset(myLtrSelection ? myReplacedTextRange.getEndOffset() : myReplacedTextRange.getStartOffset());
      }
      else {
        if (myLtrSelection || editor instanceof EditorWindow) {
          editor.getSelectionModel().setSelection(myReplacedTextRange.getStartOffset(), myReplacedTextRange.getEndOffset());
        }
        else {
          editor.getSelectionModel().setSelection(myReplacedTextRange.getEndOffset(), myReplacedTextRange.getStartOffset());
        }
        if (Registry.is("editor.smarterSelectionQuoting")) {
          editor.getCaretModel().moveToOffset(myLtrSelection ? myReplacedTextRange.getEndOffset() : myReplacedTextRange.getStartOffset());
        }
      }
    }
    myReplacedTextRange = null;
    return Result.STOP;
  }
  return Result.CONTINUE;
}
 

private static Pair<Editor, PsiFile> getEditorAndPsiFile(final AnActionEvent e) {
  final Project project = e.getData(PlatformDataKeys.PROJECT);
  if (project == null) return Pair.create(null, null);
  Editor editor = e.getData(PlatformDataKeys.EDITOR);
  PsiFile psiFile = e.getData(LangDataKeys.PSI_FILE);
  return Pair.create(editor, psiFile);
}
 

@Override
public void setSelected(@Nonnull AnActionEvent e, boolean state) {
  if (!state) return;
  PsiFile file = provider.getPsi(language);
  if (file == null) {
    return;
  }

  FileHighlightingSetting target;

  switch (level) {
    case NONE:
      target = FileHighlightingSetting.SKIP_HIGHLIGHTING;
      break;
    case ERRORS:
      target = FileHighlightingSetting.SKIP_INSPECTION;
      break;
    case ALL:
      target = FileHighlightingSetting.FORCE_HIGHLIGHTING;
      break;
    default:
      throw new UnsupportedOperationException();
  }

  HighlightLevelUtil.forceRootHighlighting(file, target);

  InjectedLanguageManager.getInstance(file.getProject()).dropFileCaches(file);
  DaemonCodeAnalyzer.getInstance(file.getProject()).restart();
}
 

@Nullable
@Override
public Lexer getIndexingLexer(@NotNull PsiFile file) {
    if (file instanceof BashFile) {
        return BashParserDefinition.createBashLexer(file.getProject());
    }
    return null;
}
 

public DependencyNode(PsiFile file, DependencyNode parent, String modulePath, boolean unused)
{
    nodes = new ArrayList<DependencyNode>();
    this.parent = parent;
    this.file = file;
    this.modulePath = modulePath;
    this.unused = unused;
}
 

@Override
public void actionPerformed(AnActionEvent anActionEvent) {
    final Project project = (Project) anActionEvent.getData(CommonDataKeys.PROJECT);

    PsiFile psiFile = anActionEvent.getData(CommonDataKeys.PSI_FILE);

    IProperty selectedProperty = getSelectedProperty(anActionEvent.getDataContext());

    final EncryptDialog form = new EncryptDialog();
    form.setTitle("Decrypt Property: " + selectedProperty.getKey());
    form.show();
    boolean isOk = form.getExitCode() == DialogWrapper.OK_EXIT_CODE;

    logger.debug("**** ALGORITHM " + form.getAlgorithm().getSelectedItem());
    logger.debug("**** MODE " + form.getMode().getSelectedItem());

    if (isOk) {
        new WriteCommandAction.Simple(project, psiFile) {
            @Override
            protected void run() throws Throwable {
                EncryptionAlgorithm algorithm = (EncryptionAlgorithm) form.getAlgorithm().getSelectedItem();
                EncryptionMode mode = (EncryptionMode) form.getMode().getSelectedItem();

                try {
                    String originalValue = selectedProperty.getValue();
                    String encryptedProperty = originalValue.substring(2, originalValue.length() - 1);

                    byte[] decryptedBytes = algorithm.getBuilder().forKey(form.getEncryptionKey().getText()).using(mode)
                            .build().decrypt(Base64.decode(encryptedProperty));

                    selectedProperty.setValue(new String(decryptedBytes));
                } catch (Exception e) {
                    Notification notification = MuleUIUtils.MULE_NOTIFICATION_GROUP.createNotification("Unable to decrypt property",
                            "Property '" + selectedProperty.getKey() + "' cannot be decrypted : " + e, NotificationType.ERROR, null);
                    Notifications.Bus.notify(notification, project);
                }
            }
        }.execute();
    }
}
 

@Nullable
public static Document getDocumentToBeUsedFor(final PsiFile file) {
  final Project project = file.getProject();
  final Document document = PsiDocumentManager.getInstance(project).getDocument(file);
  if (document == null) return null;
  if (PsiDocumentManager.getInstance(project).isUncommited(document)) return null;
  PsiToDocumentSynchronizer synchronizer = ((PsiDocumentManagerImpl)PsiDocumentManager.getInstance(file.getProject())).getSynchronizer();
  if (synchronizer.isDocumentAffectedByTransactions(document)) return null;

  return document;
}
 

private AnalysisScope getCurrentFileScope() {
    FileEditor currentEditor = FileEditorManager.getInstance(project).getSelectedEditor();
    if (currentEditor != null) {
        VirtualFile currentFile = currentEditor.getFile();
        PsiFile file = PsiManager.getInstance(project).findFile(currentFile);
        if (file instanceof PsiJavaFile)
            return new AnalysisScope(project, Collections.singletonList(currentFile));
    }
    return null;
}
 

private void annotateIssue(@NotNull PsiFile file, @NotNull AnnotationHolder holder, GrammarIssue issue) {
	for ( Token t : issue.getOffendingTokens() ) {
		if ( t instanceof CommonToken && tokenBelongsToFile(t, file) ) {
			TextRange range = getTokenRange((CommonToken) t, file);
			ErrorSeverity severity = getIssueSeverity(issue);

			Optional<Annotation> annotation = annotate(holder, issue, range, severity);
			annotation.ifPresent(a -> registerFixForAnnotation(a, issue, file));
		}
	}
}
 

@Override
public void invoke(@NotNull Project project, @NotNull Editor editor, @NotNull PsiFile file) throws IncorrectOperationException {
    if (!FileModificationService.getInstance().prepareFileForWrite(file)) {
        return;
    }

    PsiDocumentManager.getInstance(project).commitAllDocuments();
    T parentAtCaret = getParentAtCaret(editor, file);
    if (parentAtCaret != null) {
        ApplicationManager.getApplication().runWriteAction(() -> runInvoke(project, parentAtCaret));
    }
}
 

@Nonnull
@Override
public FormattingModel createModel(PsiElement element, CodeStyleSettings settings)
{
	final PsiFile file = element.getContainingFile();
	FormattingDocumentModelImpl model = FormattingDocumentModelImpl.createOn(element.getContainingFile());
	Block rootBlock = new CSharpFormattingBlock(file.getNode(), null, null, settings);
	return new PsiBasedFormattingModel(file, rootBlock, model);
}