1 /* 2 * Copyright (c) 2016, 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 jdk.nashorn.api.tree; 27 28 import java.util.List; 29 30 /** 31 * A tree node for <a href="http://www.ecma-international.org/ecma-262/6.0/#sec-function-defining-expressions">function expressions</a> including <a href="http://www.ecma-international.org/ecma-262/6.0/#sec-arrow-function-definitions">arrow functions</a>. 32 * 33 * For example: 34 * <pre> 35 * <em>var</em> func = <em>function</em> 36 * ( <em>parameters</em> ) 37 * <em>body</em> 38 * </pre> 39 * 40 * <pre> 41 * <em>var</em> func = <em>(x) => x+1</em> 42 * </pre> 43 * 44 * @deprecated Nashorn JavaScript script engine and APIs, and the jjs tool 45 * are deprecated with the intent to remove them in a future release. 46 * 47 * @since 9 48 */ 49 @Deprecated(since="11", forRemoval=true) 50 public interface FunctionExpressionTree extends ExpressionTree { 51 /** 52 * Returns the name of the function being declared. 53 * 54 * @return name the function declared 55 */ 56 IdentifierTree getName(); 57 58 /** 59 * Returns the parameters of this function. 60 * 61 * @return the list of parameters 62 */ 63 List<? extends ExpressionTree> getParameters(); 64 65 /** 66 * Returns the body of this function. This may be a {@link BlockTree} when this 67 * function has a block body. This is an {@link ExpressionTree} when the function body 68 * is a concise expression as in an expression arrow, or in an expression closure. 69 * 70 * @return the body of this function 71 */ 72 Tree getBody(); 73 74 /** 75 * Is this a strict function? 76 * 77 * @return true if this function is strict 78 */ 79 boolean isStrict(); 80 81 /** 82 * Is this a arrow function? 83 * 84 * @return true if this is a arrow function 85 */ 86 boolean isArrow(); 87 88 /** 89 * Is this a generator function? 90 * 91 * @return true if this is a generator function 92 */ 93 boolean isGenerator(); 94 }