src/share/classes/com/sun/tools/doclets/internal/toolkit/taglets/ReturnTaglet.java

Wed, 10 Oct 2012 16:48:21 -0700

author
jjg
date
Wed, 10 Oct 2012 16:48:21 -0700
changeset 1359
25e14ad23cef
parent 1357
c75be5bc5283
child 1724
d918b63a5509
permissions
-rw-r--r--

8000665: fix "internal API" comments on javadoc files
Reviewed-by: darcy

duke@1 1 /*
jjg@1357 2 * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
duke@1 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@1 4 *
duke@1 5 * This code is free software; you can redistribute it and/or modify it
duke@1 6 * under the terms of the GNU General Public License version 2 only, as
ohair@554 7 * published by the Free Software Foundation. Oracle designates this
duke@1 8 * particular file as subject to the "Classpath" exception as provided
ohair@554 9 * by Oracle in the LICENSE file that accompanied this code.
duke@1 10 *
duke@1 11 * This code is distributed in the hope that it will be useful, but WITHOUT
duke@1 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@1 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@1 14 * version 2 for more details (a copy is included in the LICENSE file that
duke@1 15 * accompanied this code).
duke@1 16 *
duke@1 17 * You should have received a copy of the GNU General Public License version
duke@1 18 * 2 along with this work; if not, write to the Free Software Foundation,
duke@1 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@1 20 *
ohair@554 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohair@554 22 * or visit www.oracle.com if you need additional information or have any
ohair@554 23 * questions.
duke@1 24 */
duke@1 25
duke@1 26 package com.sun.tools.doclets.internal.toolkit.taglets;
duke@1 27
jjg@1357 28 import com.sun.javadoc.*;
duke@1 29 import com.sun.tools.doclets.internal.toolkit.util.*;
duke@1 30
duke@1 31 /**
duke@1 32 * A taglet that represents the @return tag.
duke@1 33 *
jjg@1359 34 * <p><b>This is NOT part of any supported API.
jjg@1359 35 * If you write code that depends on this, you do so at your own risk.
jjg@1359 36 * This code and its internal interfaces are subject to change or
jjg@1359 37 * deletion without notice.</b>
duke@1 38 *
duke@1 39 * @author Jamie Ho
duke@1 40 * @since 1.4
duke@1 41 */
duke@1 42 public class ReturnTaglet extends BaseExecutableMemberTaglet
duke@1 43 implements InheritableTaglet {
duke@1 44
duke@1 45 public ReturnTaglet() {
duke@1 46 name = "return";
duke@1 47 }
duke@1 48
duke@1 49 /**
duke@1 50 * {@inheritDoc}
duke@1 51 */
duke@1 52 public void inherit(DocFinder.Input input, DocFinder.Output output) {
duke@1 53 Tag[] tags = input.method.tags("return");
duke@1 54 if (tags.length > 0) {
duke@1 55 output.holder = input.method;
duke@1 56 output.holderTag = tags[0];
duke@1 57 output.inlineTags = input.isFirstSentence ?
duke@1 58 tags[0].firstSentenceTags() : tags[0].inlineTags();
duke@1 59 }
duke@1 60 }
duke@1 61
duke@1 62 /**
duke@1 63 * Return true if this <code>Taglet</code>
duke@1 64 * is used in constructor documentation.
duke@1 65 * @return true if this <code>Taglet</code>
duke@1 66 * is used in constructor documentation and false
duke@1 67 * otherwise.
duke@1 68 */
duke@1 69 public boolean inConstructor() {
duke@1 70 return false;
duke@1 71 }
duke@1 72
duke@1 73 /**
duke@1 74 * {@inheritDoc}
duke@1 75 */
duke@1 76 public TagletOutput getTagletOutput(Doc holder, TagletWriter writer) {
duke@1 77 Type returnType = ((MethodDoc) holder).returnType();
duke@1 78 Tag[] tags = holder.tags(name);
duke@1 79
duke@1 80 //Make sure we are not using @return tag on method with void return type.
duke@1 81 if (returnType.isPrimitive() && returnType.typeName().equals("void")) {
duke@1 82 if (tags.length > 0) {
duke@1 83 writer.getMsgRetriever().warning(holder.position(),
duke@1 84 "doclet.Return_tag_on_void_method");
duke@1 85 }
duke@1 86 return null;
duke@1 87 }
duke@1 88 //Inherit @return tag if necessary.
duke@1 89 if (tags.length == 0) {
duke@1 90 DocFinder.Output inheritedDoc =
duke@1 91 DocFinder.search(new DocFinder.Input((MethodDoc) holder, this));
duke@1 92 tags = inheritedDoc.holderTag == null ? tags : new Tag[] {inheritedDoc.holderTag};
duke@1 93 }
duke@1 94 return tags.length > 0 ? writer.returnTagOutput(tags[0]) : null;
duke@1 95 }
duke@1 96 }

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