1 /* 2 * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package com.sun.source.tree; 27 28 import java.util.List; 29 30 /** 31 * {@preview Associated with switch expressions, a preview feature of 32 * the Java language. 33 * 34 * This interface is associated with <i>switch expressions</i>, a preview 35 * feature of the Java language. Preview features 36 * may be removed in a future release, or upgraded to permanent 37 * features of the Java language.} 38 * 39 * A tree node for a {@code switch} expression. 40 * 41 * For example: 42 * <pre> 43 * switch ( <em>expression</em> ) { 44 * <em>cases</em> 45 * } 46 * </pre> 47 * 48 * @jls 15.29 Switch Expressions 49 * 50 * @since 12 51 */ 52 @jdk.internal.PreviewFeature(feature=jdk.internal.PreviewFeature.Feature.SWITCH_EXPRESSIONS) 53 public interface SwitchExpressionTree extends ExpressionTree { 54 /** 55 * Returns the expression for the {@code switch} expression. 56 * @return the expression 57 */ 58 ExpressionTree getExpression(); 59 60 /** 61 * Returns the cases for the {@code switch} expression. 62 * @return the cases 63 */ 64 List<? extends CaseTree> getCases(); 65 }