jjg@46: /* ohair@554: * Copyright (c) 2007, 2009, Oracle and/or its affiliates. All rights reserved. jjg@46: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. jjg@46: * jjg@46: * This code is free software; you can redistribute it and/or modify it jjg@46: * under the terms of the GNU General Public License version 2 only, as ohair@554: * published by the Free Software Foundation. Oracle designates this jjg@46: * particular file as subject to the "Classpath" exception as provided ohair@554: * by Oracle in the LICENSE file that accompanied this code. jjg@46: * jjg@46: * This code is distributed in the hope that it will be useful, but WITHOUT jjg@46: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or jjg@46: * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License jjg@46: * version 2 for more details (a copy is included in the LICENSE file that jjg@46: * accompanied this code). jjg@46: * jjg@46: * You should have received a copy of the GNU General Public License version jjg@46: * 2 along with this work; if not, write to the Free Software Foundation, jjg@46: * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. jjg@46: * ohair@554: * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA ohair@554: * or visit www.oracle.com if you need additional information or have any ohair@554: * questions. jjg@46: */ jjg@46: jjg@46: package com.sun.tools.classfile; jjg@46: jjg@46: import java.io.IOException; jjg@46: jjg@46: /** jjh@972: * See JVMS, section 4.8.16. jjg@46: * jjg@581: *
This is NOT part of any supported API.
jjg@581: * If you write code that depends on this, you do so at your own risk.
jjg@46: * This code and its internal interfaces are subject to change or
jjg@46: * deletion without notice.
jjg@46: */
jjg@46: public class Annotation {
jjg@46: static class InvalidAnnotation extends AttributeException {
jjg@198: private static final long serialVersionUID = -4620480740735772708L;
jjg@46: InvalidAnnotation(String msg) {
jjg@46: super(msg);
jjg@46: }
jjg@46: }
jjg@46:
jjg@46: Annotation(ClassReader cr) throws IOException, InvalidAnnotation {
jjg@46: type_index = cr.readUnsignedShort();
jjg@46: num_element_value_pairs = cr.readUnsignedShort();
jjg@46: element_value_pairs = new element_value_pair[num_element_value_pairs];
jjg@46: for (int i = 0; i < element_value_pairs.length; i++)
jjg@46: element_value_pairs[i] = new element_value_pair(cr);
jjg@46: }
jjg@46:
jjg@46: public Annotation(ConstantPool constant_pool,
jjg@46: int type_index,
jjg@46: element_value_pair[] element_value_pairs) {
jjg@46: this.type_index = type_index;
jjg@46: num_element_value_pairs = element_value_pairs.length;
jjg@46: this.element_value_pairs = element_value_pairs;
jjg@46: }
jjg@46:
jjg@46: public int length() {
jjg@46: int n = 2 /*type_index*/ + 2 /*num_element_value_pairs*/;
jjg@46: for (element_value_pair pair: element_value_pairs)
jjg@46: n += pair.length();
jjg@46: return n;
jjg@46: }
jjg@46:
jjg@46: public final int type_index;
jjg@46: public final int num_element_value_pairs;
jjg@46: public final element_value_pair element_value_pairs[];
jjg@46:
jjg@46: /**
jjh@972: * See JVMS, section 4.8.16.1.
jjg@46: */
jjg@46: public static abstract class element_value {
jjg@46: public static element_value read(ClassReader cr)
jjg@46: throws IOException, InvalidAnnotation {
jjg@46: int tag = cr.readUnsignedByte();
jjg@46: switch (tag) {
jjg@46: case 'B':
jjg@46: case 'C':
jjg@46: case 'D':
jjg@46: case 'F':
jjg@46: case 'I':
jjg@46: case 'J':
jjg@46: case 'S':
jjg@46: case 'Z':
jjg@46: case 's':
jjg@46: return new Primitive_element_value(cr, tag);
jjg@46:
jjg@46: case 'e':
jjg@46: return new Enum_element_value(cr, tag);
jjg@46:
jjg@46: case 'c':
jjg@46: return new Class_element_value(cr, tag);
jjg@46:
jjg@46: case '@':
jjg@46: return new Annotation_element_value(cr, tag);
jjg@46:
jjg@46: case '[':
jjg@46: return new Array_element_value(cr, tag);
jjg@46:
jjg@46: default:
jjg@46: throw new InvalidAnnotation("unrecognized tag: " + tag);
jjg@46: }
jjg@46: }
jjg@46:
jjg@46: protected element_value(int tag) {
jjg@46: this.tag = tag;
jjg@46: }
jjg@46:
jjg@46: public abstract int length();
jjg@46:
jjg@46: public abstract