Method concat

src/main/java/net/starlark/java/eval/Tuple.java:105–121

Returns a tuple that is the concatenation of two tuples.

(Tuple x, Tuple y)

  /** Returns a tuple that is the concatenation of two tuples. */
  public static Tuple concat(Tuple x, Tuple y) {
    if (x.isEmpty()) {
      return y;
    } else if (y.isEmpty()) {
      return x;
    } else {
      Object[] xelems =
          x instanceof SingletonTuple
              ? new Object[] {((SingletonTuple) x).elem}
              : ((RegularTuple) x).elems;
      Object[] yelems =
          y instanceof SingletonTuple
              ? new Object[] {((SingletonTuple) y).elem}
              : ((RegularTuple) y).elems;
      return wrap(ObjectArrays.concat(xelems, yelems, Object.class));
    }
  }

  @Override
  public int compareTo(Tuple that) {