Mercurial > jdk8-mips64-public > langtools / file revision
src/share/classes/com/sun/tools/javadoc/AnnotationValueImpl.java@ebf7c13df6c0
src/share/classes/com/sun/tools/javadoc/AnnotationValueImpl.java
Fri, 04 Mar 2011 19:53:03 -0800
- author
- jjg
- date
- Fri, 04 Mar 2011 19:53:03 -0800
- changeset 910
- ebf7c13df6c0
- parent 554
- 9d9f26857129
- child 1313
- 873ddd9f4900
- permissions
- -rw-r--r--
6866185: Util.getPackageSourcePath should use lastIndexOf not indexOf and related cleanup
Reviewed-by: bpatel
1 /*
2 * Copyright (c) 2003, 2011, 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 */
26 package com.sun.tools.javadoc;
29 import com.sun.javadoc.*;
31 import com.sun.tools.javac.code.Attribute;
32 import com.sun.tools.javac.code.Symbol.*;
33 import com.sun.tools.javac.code.TypeTags;
36 /**
37 * Represents a value of an annotation type element.
38 *
39 * @author Scott Seligman
40 * @since 1.5
41 */
43 public class AnnotationValueImpl implements AnnotationValue {
45 private final DocEnv env;
46 private final Attribute attr;
49 AnnotationValueImpl(DocEnv env, Attribute attr) {
50 this.env = env;
51 this.attr = attr;
52 }
54 /**
55 * Returns the value.
56 * The type of the returned object is one of the following:
57 * <ul><li> a wrapper class for a primitive type
58 * <li> <code>String</code>
59 * <li> <code>Type</code> (representing a class literal)
60 * <li> <code>FieldDoc</code> (representing an enum constant)
61 * <li> <code>AnnotationDesc</code>
62 * <li> <code>AnnotationValue[]</code>
63 * </ul>
64 */
65 public Object value() {
66 ValueVisitor vv = new ValueVisitor();
67 attr.accept(vv);
68 return vv.value;
69 }
71 private class ValueVisitor implements Attribute.Visitor {
72 public Object value;
74 public void visitConstant(Attribute.Constant c) {
75 if (c.type.tag == TypeTags.BOOLEAN) {
76 // javac represents false and true as integers 0 and 1
77 value = Boolean.valueOf(
78 ((Integer)c.value).intValue() != 0);
79 } else {
80 value = c.value;
81 }
82 }
84 public void visitClass(Attribute.Class c) {
85 value = TypeMaker.getType(env,
86 env.types.erasure(c.type));
87 }
89 public void visitEnum(Attribute.Enum e) {
90 value = env.getFieldDoc(e.value);
91 }
93 public void visitCompound(Attribute.Compound c) {
94 value = new AnnotationDescImpl(env, c);
95 }
97 public void visitArray(Attribute.Array a) {
98 AnnotationValue vals[] = new AnnotationValue[a.values.length];
99 for (int i = 0; i < vals.length; i++) {
100 vals[i] = new AnnotationValueImpl(env, a.values[i]);
101 }
102 value = vals;
103 }
105 public void visitError(Attribute.Error e) {
106 value = "<error>";
107 }
108 }
110 /**
111 * Returns a string representation of the value.
112 *
113 * @return the text of a Java language annotation value expression
114 * whose value is the value of this annotation type element.
115 */
116 @Override
117 public String toString() {
118 ToStringVisitor tv = new ToStringVisitor();
119 attr.accept(tv);
120 return tv.toString();
121 }
123 private class ToStringVisitor implements Attribute.Visitor {
124 private final StringBuilder sb = new StringBuilder();
126 @Override
127 public String toString() {
128 return sb.toString();
129 }
131 public void visitConstant(Attribute.Constant c) {
132 if (c.type.tag == TypeTags.BOOLEAN) {
133 // javac represents false and true as integers 0 and 1
134 sb.append(((Integer)c.value).intValue() != 0);
135 } else {
136 sb.append(FieldDocImpl.constantValueExpression(c.value));
137 }
138 }
140 public void visitClass(Attribute.Class c) {
141 sb.append(c);
142 }
144 public void visitEnum(Attribute.Enum e) {
145 sb.append(e);
146 }
148 public void visitCompound(Attribute.Compound c) {
149 sb.append(new AnnotationDescImpl(env, c));
150 }
152 public void visitArray(Attribute.Array a) {
153 // Omit braces from singleton.
154 if (a.values.length != 1) sb.append('{');
156 boolean first = true;
157 for (Attribute elem : a.values) {
158 if (first) {
159 first = false;
160 } else {
161 sb.append(", ");
162 }
163 elem.accept(this);
164 }
165 // Omit braces from singleton.
166 if (a.values.length != 1) sb.append('}');
167 }
169 public void visitError(Attribute.Error e) {
170 sb.append("<error>");
171 }
172 }
173 }
