1/*
2 * Copyright (C) 2008 The Guava Authors
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.google.common.collect.testing;
18
19import com.google.common.annotations.GwtCompatible;
20
21/**
22 * Methods factored out so that they can be emulated differently in GWT.
23 *
24 * <p>This class is emulated in GWT.
25 *
26 * @author Hayward Chan
27 */
28@GwtCompatible
29final class Platform {
30
31  /**
32   * Calls {@link Class#isInstance(Object)}.  Factored out so that it can be
33   * emulated in GWT.
34   *
35   * <p>This method always returns {@code true} in GWT.
36   */
37  static boolean checkIsInstance(Class<?> clazz, Object obj) {
38    return clazz.isInstance(obj);
39  }
40
41  static <T> T[] clone(T[] array) {
42    return array.clone();
43  }
44
45  // Class.cast is not supported in GWT.  This method is a no-op in GWT.
46  static void checkCast(Class<?> clazz, Object obj) {
47    clazz.cast(obj);
48  }
49
50  static String format(String template, Object... args) {
51    return String.format(template, args);
52  }
53
54  private Platform() {}
55}
56