Method wrapImmutable

src/main/java/net/starlark/java/eval/Tuple.java:148–169

(Object[] array)

   */
  // TODO(adonovan): move this somewhere more appropriate.
  static <T> ImmutableList<T> wrapImmutable(Object[] array) {
    // Construct an ImmutableList that shares the array.
    // ImmutableList relies on the implementation of Collection.toArray
    // not subsequently modifying the returned array.
    return ImmutableList.copyOf(
        new AbstractCollection<T>() {
          @Override
          public Object[] toArray() {
            return array;
          }

          @Override
          public int size() {
            return array.length;
          }

          @Override
          public Iterator<T> iterator() {
            throw new UnsupportedOperationException();
          }
        });
  }

  /** Returns a Tuple containing n consecutive repeats of this tuple. */
  abstract Tuple repeat(StarlarkInt n) throws EvalException;