Function.java revision 1312:d1689c1df3aa
1/* 2 * Copyright (c) 2010, 2015, 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 26package jdk.nashorn.internal.objects.annotations; 27 28import static jdk.nashorn.internal.objects.annotations.Attribute.DEFAULT_ATTRIBUTES; 29 30import java.lang.annotation.ElementType; 31import java.lang.annotation.Retention; 32import java.lang.annotation.RetentionPolicy; 33import java.lang.annotation.Target; 34 35/** 36 * Annotation to specify a JavaScript "function" property. 37 * Note that -1 means varargs. So, -2 is used as invalid arity. 38 * 39 */ 40@Retention(RetentionPolicy.RUNTIME) 41@Target(ElementType.METHOD) 42public @interface Function { 43 /** 44 * @return the name of the property. If empty, the name is inferred. 45 */ 46 public String name() default ""; 47 48 /** 49 * @return the attribute flags for this function. 50 */ 51 public int attributes() default DEFAULT_ATTRIBUTES; 52 53 /** 54 * @return the arity of the function. By default computed from the method 55 * signature. 56 */ 57 public int arity() default -2; 58 59 /** 60 * @return where this function lives. 61 */ 62 public Where where() default Where.PROTOTYPE; 63} 64