1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/classes/com/sun/tools/javadoc/AnnotationValueImpl.java Sat Dec 01 00:00:00 2007 +0000
1.3 @@ -0,0 +1,172 @@
1.4 +/*
1.5 + * Copyright 2003-2004 Sun Microsystems, Inc. All Rights Reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation. Sun designates this
1.11 + * particular file as subject to the "Classpath" exception as provided
1.12 + * by Sun in the LICENSE file that accompanied this code.
1.13 + *
1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.16 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.17 + * version 2 for more details (a copy is included in the LICENSE file that
1.18 + * accompanied this code).
1.19 + *
1.20 + * You should have received a copy of the GNU General Public License version
1.21 + * 2 along with this work; if not, write to the Free Software Foundation,
1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.23 + *
1.24 + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
1.25 + * CA 95054 USA or visit www.sun.com if you need additional information or
1.26 + * have any questions.
1.27 + */
1.28 +
1.29 +package com.sun.tools.javadoc;
1.30 +
1.31 +
1.32 +import com.sun.javadoc.*;
1.33 +
1.34 +import com.sun.tools.javac.code.Attribute;
1.35 +import com.sun.tools.javac.code.Symbol.*;
1.36 +import com.sun.tools.javac.code.Type;
1.37 +import com.sun.tools.javac.code.TypeTags;
1.38 +
1.39 +
1.40 +/**
1.41 + * Represents a value of an annotation type element.
1.42 + *
1.43 + * @author Scott Seligman
1.44 + * @since 1.5
1.45 + */
1.46 +
1.47 +public class AnnotationValueImpl implements AnnotationValue {
1.48 +
1.49 + private final DocEnv env;
1.50 + private final Attribute attr;
1.51 +
1.52 +
1.53 + AnnotationValueImpl(DocEnv env, Attribute attr) {
1.54 + this.env = env;
1.55 + this.attr = attr;
1.56 + }
1.57 +
1.58 + /**
1.59 + * Returns the value.
1.60 + * The type of the returned object is one of the following:
1.61 + * <ul><li> a wrapper class for a primitive type
1.62 + * <li> <code>String</code>
1.63 + * <li> <code>Type</code> (representing a class literal)
1.64 + * <li> <code>FieldDoc</code> (representing an enum constant)
1.65 + * <li> <code>AnnotationDesc</code>
1.66 + * <li> <code>AnnotationValue[]</code>
1.67 + * </ul>
1.68 + */
1.69 + public Object value() {
1.70 + ValueVisitor vv = new ValueVisitor();
1.71 + attr.accept(vv);
1.72 + return vv.value;
1.73 + }
1.74 +
1.75 + private class ValueVisitor implements Attribute.Visitor {
1.76 + public Object value;
1.77 +
1.78 + public void visitConstant(Attribute.Constant c) {
1.79 + if (c.type.tag == TypeTags.BOOLEAN) {
1.80 + // javac represents false and true as integers 0 and 1
1.81 + value = Boolean.valueOf(
1.82 + ((Integer)c.value).intValue() != 0);
1.83 + } else {
1.84 + value = c.value;
1.85 + }
1.86 + }
1.87 +
1.88 + public void visitClass(Attribute.Class c) {
1.89 + value = TypeMaker.getType(env,
1.90 + env.types.erasure(c.type));
1.91 + }
1.92 +
1.93 + public void visitEnum(Attribute.Enum e) {
1.94 + value = env.getFieldDoc(e.value);
1.95 + }
1.96 +
1.97 + public void visitCompound(Attribute.Compound c) {
1.98 + value = new AnnotationDescImpl(env, c);
1.99 + }
1.100 +
1.101 + public void visitArray(Attribute.Array a) {
1.102 + AnnotationValue vals[] = new AnnotationValue[a.values.length];
1.103 + for (int i = 0; i < vals.length; i++) {
1.104 + vals[i] = new AnnotationValueImpl(env, a.values[i]);
1.105 + }
1.106 + value = vals;
1.107 + }
1.108 +
1.109 + public void visitError(Attribute.Error e) {
1.110 + value = "<error>";
1.111 + }
1.112 + }
1.113 +
1.114 + /**
1.115 + * Returns a string representation of the value.
1.116 + *
1.117 + * @return the text of a Java language annotation value expression
1.118 + * whose value is the value of this annotation type element.
1.119 + */
1.120 + public String toString() {
1.121 + ToStringVisitor tv = new ToStringVisitor();
1.122 + attr.accept(tv);
1.123 + return tv.toString();
1.124 + }
1.125 +
1.126 + private class ToStringVisitor implements Attribute.Visitor {
1.127 + private final StringBuffer sb = new StringBuffer();
1.128 +
1.129 + public String toString() {
1.130 + return sb.toString();
1.131 + }
1.132 +
1.133 + public void visitConstant(Attribute.Constant c) {
1.134 + if (c.type.tag == TypeTags.BOOLEAN) {
1.135 + // javac represents false and true as integers 0 and 1
1.136 + sb.append(((Integer)c.value).intValue() != 0);
1.137 + } else {
1.138 + sb.append(FieldDocImpl.constantValueExpression(c.value));
1.139 + }
1.140 + }
1.141 +
1.142 + public void visitClass(Attribute.Class c) {
1.143 + sb.append(c);
1.144 + }
1.145 +
1.146 + public void visitEnum(Attribute.Enum e) {
1.147 + sb.append(e);
1.148 + }
1.149 +
1.150 + public void visitCompound(Attribute.Compound c) {
1.151 + sb.append(new AnnotationDescImpl(env, c));
1.152 + }
1.153 +
1.154 + public void visitArray(Attribute.Array a) {
1.155 + // Omit braces from singleton.
1.156 + if (a.values.length != 1) sb.append('{');
1.157 +
1.158 + boolean first = true;
1.159 + for (Attribute elem : a.values) {
1.160 + if (first) {
1.161 + first = false;
1.162 + } else {
1.163 + sb.append(", ");
1.164 + }
1.165 + elem.accept(this);
1.166 + }
1.167 + // Omit braces from singleton.
1.168 + if (a.values.length != 1) sb.append('}');
1.169 + }
1.170 +
1.171 + public void visitError(Attribute.Error e) {
1.172 + sb.append("<error>");
1.173 + }
1.174 + }
1.175 +}
