How to use

merge

method

in

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

/**
 * Create an edit which contains <code>edit1</code> and <code>edit2</code>
 * <p>If <code>edit1</code> overlaps <code>edit2</code> this method fails with a {@link MalformedTreeException}</p>
 * <p><strong>The given edits are modified and they can no longer be used.</strong></p>
 *
 * @param edit1 the edit to merge with edit2
 * @param edit2 the edit to merge with edit1
 * @return the merged tree
 * @throws MalformedTreeException if {@link #overlaps(TextEdit, TextEdit)} returns <b>true</b>
 * @see #overlaps(TextEdit, TextEdit)
 * @since 3.4
 */
public static TextEdit merge(TextEdit edit1, TextEdit edit2) {
  if (edit1 instanceof MultiTextEdit && !edit1.hasChildren()) {
    return edit2;
  }
  if (edit2 instanceof MultiTextEdit && !edit2.hasChildren()) {
    return edit1;
  }
  MultiTextEdit result= new MultiTextEdit();
  merge(edit1, edit2, result);
  return result;
}

/**
 * Create an edit which contains <code>edit1</code> and <code>edit2</code>
 * <p>If <code>edit1</code> overlaps <code>edit2</code> this method fails with a {@link MalformedTreeException}</p>
 * <p><strong>The given edits are modified and they can no longer be used.</strong></p>
 *
 * @param edit1 the edit to merge with edit2
 * @param edit2 the edit to merge with edit1
 * @return the merged tree
 * @throws MalformedTreeException if {@link #overlaps(TextEdit, TextEdit)} returns <b>true</b>
 * @see #overlaps(TextEdit, TextEdit)
 * @since 3.4
 */
public static TextEdit merge(TextEdit edit1, TextEdit edit2) {
  if (edit1 instanceof MultiTextEdit && !edit1.hasChildren()) {
    return edit2;
  }
  if (edit2 instanceof MultiTextEdit && !edit2.hasChildren()) {
    return edit1;
  }
  MultiTextEdit result= new MultiTextEdit();
  merge(edit1, edit2, result);
  return result;
}

} else {
  CleanUpChange merge= new CleanUpChange(FixMessages.CleanUpRefactoring_clean_up_multi_chang_name, context.getCompilationUnit());
  merge.setEdit(TextEditUtil.merge(currentEdit, solution.getEdit()));

} else {
  CleanUpChange merge= new CleanUpChange(FixMessages.CleanUpRefactoring_clean_up_multi_chang_name, context.getCompilationUnit());
  merge.setEdit(TextEditUtil.merge(currentEdit, solution.getEdit()));

TextEdit resultEdit= TextEditUtil.merge(formatEdit, otherEdit);
if (!resultEdit.hasChildren())
  return null;

  merge(children1[i1], children2[i2], result);
merge(children[i], edit2, result);
i++;
while (i < children.length) {
merge(edit1, children[i], result);
i++;
while (i < children.length) {

TextEdit resultEdit= TextEditUtil.merge(formatEdit, otherEdit);
if (!resultEdit.hasChildren())
  return null;

  merge(children1[i1], children2[i2], result);
merge(children[i], edit2, result);
i++;
while (i < children.length) {
merge(edit1, children[i], result);
i++;
while (i < children.length) {