src/share/classes/com/sun/tools/javap/AnnotationWriter.java

Tue, 16 Sep 2008 18:35:18 -0700

author
jjg
date
Tue, 16 Sep 2008 18:35:18 -0700
changeset 113
eff38cc97183
parent 54
eaf608c64fec
child 308
03944ee4fac4
permissions
-rw-r--r--

6574134: Allow for alternative implementation of Name Table with garbage collection of name bytes
Reviewed-by: darcy, mcimadamore

jjg@46 1 /*
xdono@54 2 * Copyright 2007-2008 Sun Microsystems, Inc. All Rights Reserved.
jjg@46 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
jjg@46 4 *
jjg@46 5 * This code is free software; you can redistribute it and/or modify it
jjg@46 6 * under the terms of the GNU General Public License version 2 only, as
jjg@46 7 * published by the Free Software Foundation. Sun designates this
jjg@46 8 * particular file as subject to the "Classpath" exception as provided
jjg@46 9 * by Sun in the LICENSE file that accompanied this code.
jjg@46 10 *
jjg@46 11 * This code is distributed in the hope that it will be useful, but WITHOUT
jjg@46 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
jjg@46 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
jjg@46 14 * version 2 for more details (a copy is included in the LICENSE file that
jjg@46 15 * accompanied this code).
jjg@46 16 *
jjg@46 17 * You should have received a copy of the GNU General Public License version
jjg@46 18 * 2 along with this work; if not, write to the Free Software Foundation,
jjg@46 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
jjg@46 20 *
jjg@46 21 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
jjg@46 22 * CA 95054 USA or visit www.sun.com if you need additional information or
jjg@46 23 * have any questions.
jjg@46 24 */
jjg@46 25
jjg@46 26 package com.sun.tools.javap;
jjg@46 27
jjg@46 28 import com.sun.tools.classfile.Annotation;
jjg@46 29 import com.sun.tools.classfile.Annotation.Annotation_element_value;
jjg@46 30 import com.sun.tools.classfile.Annotation.Array_element_value;
jjg@46 31 import com.sun.tools.classfile.Annotation.Class_element_value;
jjg@46 32 import com.sun.tools.classfile.Annotation.Enum_element_value;
jjg@46 33 import com.sun.tools.classfile.Annotation.Primitive_element_value;
jjg@46 34
jjg@46 35 /**
jjg@46 36 * A writer for writing annotations as text.
jjg@46 37 *
jjg@46 38 * <p><b>This is NOT part of any API supported by Sun Microsystems. If
jjg@46 39 * you write code that depends on this, you do so at your own risk.
jjg@46 40 * This code and its internal interfaces are subject to change or
jjg@46 41 * deletion without notice.</b>
jjg@46 42 */
jjg@46 43 public class AnnotationWriter extends BasicWriter {
jjg@46 44 static AnnotationWriter instance(Context context) {
jjg@46 45 AnnotationWriter instance = context.get(AnnotationWriter.class);
jjg@46 46 if (instance == null)
jjg@46 47 instance = new AnnotationWriter(context);
jjg@46 48 return instance;
jjg@46 49 }
jjg@46 50
jjg@46 51 protected AnnotationWriter(Context context) {
jjg@46 52 super(context);
jjg@46 53 }
jjg@46 54
jjg@46 55 public void write(Annotation annot) {
jjg@46 56 print("#" + annot.type_index + "(");
jjg@46 57 for (int i = 0; i < annot.num_element_value_pairs; i++) {
jjg@46 58 if (i > 0)
jjg@46 59 print(",");
jjg@46 60 write(annot.element_value_pairs[i]);
jjg@46 61 }
jjg@46 62 print(")");
jjg@46 63 }
jjg@46 64
jjg@46 65 public void write(Annotation.element_value_pair pair) {
jjg@46 66 print("#" + pair.element_name_index + ":");
jjg@46 67 write(pair.value);
jjg@46 68 }
jjg@46 69
jjg@46 70 public void write(Annotation.element_value value) {
jjg@46 71 ev_writer.write(value);
jjg@46 72 }
jjg@46 73
jjg@46 74 element_value_Writer ev_writer = new element_value_Writer();
jjg@46 75
jjg@46 76 class element_value_Writer implements Annotation.element_value.Visitor<Void,Void> {
jjg@46 77 public void write(Annotation.element_value value) {
jjg@46 78 value.accept(this, null);
jjg@46 79 }
jjg@46 80
jjg@46 81 public Void visitPrimitive(Primitive_element_value ev, Void p) {
jjg@46 82 print(((char) ev.tag) + "#" + ev.const_value_index);
jjg@46 83 return null;
jjg@46 84 }
jjg@46 85
jjg@46 86 public Void visitEnum(Enum_element_value ev, Void p) {
jjg@46 87 print(((char) ev.tag) + "#" + ev.type_name_index + ".#" + ev.const_name_index);
jjg@46 88 return null;
jjg@46 89 }
jjg@46 90
jjg@46 91 public Void visitClass(Class_element_value ev, Void p) {
jjg@46 92 print(((char) ev.tag) + "#" + ev.class_info_index);
jjg@46 93 return null;
jjg@46 94 }
jjg@46 95
jjg@46 96 public Void visitAnnotation(Annotation_element_value ev, Void p) {
jjg@46 97 print((char) ev.tag);
jjg@46 98 AnnotationWriter.this.write(ev.annotation_value);
jjg@46 99 return null;
jjg@46 100 }
jjg@46 101
jjg@46 102 public Void visitArray(Array_element_value ev, Void p) {
jjg@46 103 print("[");
jjg@46 104 for (int i = 0; i < ev.num_values; i++) {
jjg@46 105 if (i > 0)
jjg@46 106 print(",");
jjg@46 107 write(ev.values[i]);
jjg@46 108 }
jjg@46 109 print("]");
jjg@46 110 return null;
jjg@46 111 }
jjg@46 112
jjg@46 113 }
jjg@46 114 }

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