How to use

flatten

method

in

org.eclipse.jdt.internal.corext.refactoring.util.TextEditUtil

/**
 * Degenerates the given edit tree into a list.<br>
 * All nodes of the result are leafs.<br>
 * <strong>The given edit is modified and can no longer be used.</strong>
 *
 * @param edit the edit tree to flatten
 * @return a list of edits
 * @since 3.4
 */
public static MultiTextEdit flatten(TextEdit edit) {
  MultiTextEdit result= new MultiTextEdit();
  flatten(edit, result);
  return result;
}

/**
 * Degenerates the given edit tree into a list.<br>
 * All nodes of the result are leafs.<br>
 * <strong>The given edit is modified and can no longer be used.</strong>
 *
 * @param edit the edit tree to flatten
 * @return a list of edits
 * @since 3.4
 */
public static MultiTextEdit flatten(TextEdit edit) {
  MultiTextEdit result= new MultiTextEdit();
  flatten(edit, result);
  return result;
}

private List<org.eclipse.lsp4j.TextEdit> format(ICompilationUnit cu, IDocument document, IRegion region, FormattingOptions options, boolean includeComments, IProgressMonitor monitor) {
  if (cu == null || document == null || region == null || monitor.isCanceled()) {
    return Collections.emptyList();
  }
  CodeFormatter formatter = ToolFactory.createCodeFormatter(getOptions(options, cu));
  String lineDelimiter = TextUtilities.getDefaultLineDelimiter(document);
  String sourceToFormat = document.get();
  int kind = getFormattingKind(cu, includeComments);
  TextEdit format = formatter.format(kind, sourceToFormat, region.getOffset(), region.getLength(), 0, lineDelimiter);
  if (format == null || format.getChildren().length == 0 || monitor.isCanceled()) {
    // nothing to return
    return Collections.<org.eclipse.lsp4j.TextEdit>emptyList();
  }
  MultiTextEdit flatEdit = TextEditUtil.flatten(format);
  return convertEdits(flatEdit.getChildren(), document);
}

private static void flatten(TextEdit edit, MultiTextEdit result) {
  if (!edit.hasChildren()) {
    result.addChild(edit);
  } else {
    TextEdit[] children= edit.getChildren();
    for (int i= 0; i < children.length; i++) {
      TextEdit child= children[i];
      child.getParent().removeChild(0);
      flatten(child, result);
    }
  }
}

private static void flatten(TextEdit edit, MultiTextEdit result) {
  if (!edit.hasChildren()) {
    result.addChild(edit);
  } else {
    TextEdit[] children= edit.getChildren();
    for (int i= 0; i < children.length; i++) {
      TextEdit child= children[i];
      child.getParent().removeChild(0);
      flatten(child, result);
    }
  }
}

formatEdit.addChild(edit);
if (!TextEditUtil.isPacked(formatEdit)) {
  formatEdit= TextEditUtil.flatten(formatEdit);

formatEdit.addChild(edit);
if (!TextEditUtil.isPacked(formatEdit)) {
  formatEdit= TextEditUtil.flatten(formatEdit);