Method build

src/main/java/net/starlark/java/eval/Dict.java:540–553

Returns a new Dict containing the entries added so far. The result has the specified mutability; null means immutable.

(@Nullable Mutability mu)

     * mutability; null means immutable.
     */
    public Dict<K, V> build(@Nullable Mutability mu) {
      if (mu == null) {
        mu = Mutability.IMMUTABLE;
      }

      if (mu == Mutability.IMMUTABLE) {
        if (items.isEmpty()) {
          return empty();
        }
        return new Dict<>(buildImmutableMap());
      } else {
        return new Dict<>(mu, buildLinkedHashMap());
      }
    }

    private void populateMap(int n, BiConsumer<K, V> mapEntryConsumer) {
      for (int i = 0; i < n; i++) {