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Java example source code file (Assert.java)
The Assert.java Java example source code/* * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.sun.tools.javac.util; /** * Simple facility for unconditional assertions. * The methods in this class are described in terms of equivalent assert * statements, assuming that assertions have been enabled. * * <p>This is NOT part of any supported API. * If you write code that depends on this, you do so at your own risk. * This code and its internal interfaces are subject to change or * deletion without notice.</b> */ public class Assert { /** Equivalent to * assert cond; */ public static void check(boolean cond) { if (!cond) error(); } /** Equivalent to * assert (o == null); */ public static void checkNull(Object o) { if (o != null) error(); } /** Equivalent to * assert (t != null); return t; */ public static <T> T checkNonNull(T t) { if (t == null) error(); return t; } /** Equivalent to * assert cond : value; */ public static void check(boolean cond, int value) { if (!cond) error(String.valueOf(value)); } /** Equivalent to * assert cond : value; */ public static void check(boolean cond, long value) { if (!cond) error(String.valueOf(value)); } /** Equivalent to * assert cond : value; */ public static void check(boolean cond, Object value) { if (!cond) error(String.valueOf(value)); } /** Equivalent to * assert cond : value; */ public static void check(boolean cond, String msg) { if (!cond) error(msg); } /** Equivalent to * assert (o == null) : value; */ public static void checkNull(Object o, Object value) { if (o != null) error(String.valueOf(value)); } /** Equivalent to * assert (o == null) : value; */ public static void checkNull(Object o, String msg) { if (o != null) error(msg); } /** Equivalent to * assert (o != null) : value; */ public static <T> T checkNonNull(T t, String msg) { if (t == null) error(msg); return t; } /** Equivalent to * assert false; */ public static void error() { throw new AssertionError(); } /** Equivalent to * assert false : msg; */ public static void error(String msg) { throw new AssertionError(msg); } /** Prevent instantiation. */ private Assert() { } } Other Java examples (source code examples)Here is a short list of links related to this Java Assert.java source code file: |
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