blob: f4cb46666615b5b1eb37ca36c951f2744678508f [file] [log] [blame]
// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
/// @assertion Iterable<T> expand <T>(Iterable<T> f(E element))
/// Expands each element of this [Iterable] into zero or more elements.
/// @description Checks that empty [Iterable] cannot be expanded.
/// @author
import "../../../Utils/expect.dart";
import "dart:collection";
class MyIterable extends Object with IterableMixin {
List _content;
MyIterable(List list): _content = list;
Iterator get iterator {
return _content.iterator;
main() {
MyIterable empty = new MyIterable([]);
Iterable processed = empty.expand((pair) => [12345]);