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 17 package com.google.common.collect.testing; 18 19 import 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 29 final 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 */ checkIsInstance(Class<?> clazz, Object obj)37 static boolean checkIsInstance(Class<?> clazz, Object obj) { 38 return clazz.isInstance(obj); 39 } 40 clone(T[] array)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. checkCast(Class<?> clazz, Object obj)46 static void checkCast(Class<?> clazz, Object obj) { 47 clazz.cast(obj); 48 } 49 format(String template, Object... args)50 static String format(String template, Object... args) { 51 return String.format(template, args); 52 } 53 Platform()54 private Platform() {} 55 } 56