src/share/classes/com/sun/tools/doclets/internal/toolkit/util/DocFinder.java

Sat, 07 Nov 2020 10:30:02 +0800

author
aoqi
date
Sat, 07 Nov 2020 10:30:02 +0800
changeset 3938
93012e2a5d1d
parent 2525
2eb010b6cb22
permissions
-rw-r--r--

Added tag mips-jdk8u275-b01 for changeset eb6ee6a5f2fe

aoqi@0 1 /*
aoqi@0 2 * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0 4 *
aoqi@0 5 * This code is free software; you can redistribute it and/or modify it
aoqi@0 6 * under the terms of the GNU General Public License version 2 only, as
aoqi@0 7 * published by the Free Software Foundation. Oracle designates this
aoqi@0 8 * particular file as subject to the "Classpath" exception as provided
aoqi@0 9 * by Oracle in the LICENSE file that accompanied this code.
aoqi@0 10 *
aoqi@0 11 * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0 14 * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0 15 * accompanied this code).
aoqi@0 16 *
aoqi@0 17 * You should have received a copy of the GNU General Public License version
aoqi@0 18 * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0 20 *
aoqi@0 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0 22 * or visit www.oracle.com if you need additional information or have any
aoqi@0 23 * questions.
aoqi@0 24 */
aoqi@0 25
aoqi@0 26 package com.sun.tools.doclets.internal.toolkit.util;
aoqi@0 27
aoqi@0 28 import java.util.*;
aoqi@0 29
aoqi@0 30 import com.sun.javadoc.*;
aoqi@0 31 import com.sun.tools.doclets.internal.toolkit.taglets.*;
aoqi@0 32
aoqi@0 33 /**
aoqi@0 34 * Search for the requested documentation. Inherit documentation if necessary.
aoqi@0 35 *
aoqi@0 36 * <p><b>This is NOT part of any supported API.
aoqi@0 37 * If you write code that depends on this, you do so at your own risk.
aoqi@0 38 * This code and its internal interfaces are subject to change or
aoqi@0 39 * deletion without notice.</b>
aoqi@0 40 *
aoqi@0 41 * @author Jamie Ho
aoqi@0 42 * @since 1.5
aoqi@0 43 */
aoqi@0 44 public class DocFinder {
aoqi@0 45
aoqi@0 46 /**
aoqi@0 47 * The class that encapsulates the input.
aoqi@0 48 */
aoqi@0 49 public static class Input {
aoqi@0 50 /**
aoqi@0 51 * The element to search documentation from.
aoqi@0 52 */
aoqi@0 53 public ProgramElementDoc element;
aoqi@0 54 /**
aoqi@0 55 * The taglet to search for documentation on behalf of. Null if we want
aoqi@0 56 * to search for overall documentation.
aoqi@0 57 */
aoqi@0 58 public InheritableTaglet taglet = null;
aoqi@0 59
aoqi@0 60 /**
aoqi@0 61 * The id of the tag to retrieve documentation for.
aoqi@0 62 */
aoqi@0 63 public String tagId = null;
aoqi@0 64
aoqi@0 65 /**
aoqi@0 66 * The tag to retrieve documentation for. This is only used for the
aoqi@0 67 * inheritDoc tag.
aoqi@0 68 */
aoqi@0 69 public Tag tag = null;
aoqi@0 70
aoqi@0 71 /**
aoqi@0 72 * True if we only want to search for the first sentence.
aoqi@0 73 */
aoqi@0 74 public boolean isFirstSentence = false;
aoqi@0 75
aoqi@0 76 /**
aoqi@0 77 * True if we are looking for documentation to replace the inheritDocTag.
aoqi@0 78 */
aoqi@0 79 public boolean isInheritDocTag = false;
aoqi@0 80
aoqi@0 81 /**
aoqi@0 82 * Used to distinguish between type variable param tags and regular
aoqi@0 83 * param tags.
aoqi@0 84 */
aoqi@0 85 public boolean isTypeVariableParamTag = false;
aoqi@0 86
aoqi@0 87 public Input(ProgramElementDoc element, InheritableTaglet taglet, Tag tag,
aoqi@0 88 boolean isFirstSentence, boolean isInheritDocTag) {
aoqi@0 89 this(element);
aoqi@0 90 this.taglet = taglet;
aoqi@0 91 this.tag = tag;
aoqi@0 92 this.isFirstSentence = isFirstSentence;
aoqi@0 93 this.isInheritDocTag = isInheritDocTag;
aoqi@0 94 }
aoqi@0 95
aoqi@0 96 public Input(ProgramElementDoc element, InheritableTaglet taglet, String tagId) {
aoqi@0 97 this(element);
aoqi@0 98 this.taglet = taglet;
aoqi@0 99 this.tagId = tagId;
aoqi@0 100 }
aoqi@0 101
aoqi@0 102 public Input(ProgramElementDoc element, InheritableTaglet taglet, String tagId,
aoqi@0 103 boolean isTypeVariableParamTag) {
aoqi@0 104 this(element);
aoqi@0 105 this.taglet = taglet;
aoqi@0 106 this.tagId = tagId;
aoqi@0 107 this.isTypeVariableParamTag = isTypeVariableParamTag;
aoqi@0 108 }
aoqi@0 109
aoqi@0 110 public Input(ProgramElementDoc element, InheritableTaglet taglet) {
aoqi@0 111 this(element);
aoqi@0 112 this.taglet = taglet;
aoqi@0 113 }
aoqi@0 114
aoqi@0 115 public Input(ProgramElementDoc element) {
aoqi@0 116 if (element == null)
aoqi@0 117 throw new NullPointerException();
aoqi@0 118 this.element = element;
aoqi@0 119 }
aoqi@0 120
aoqi@0 121 public Input(ProgramElementDoc element, boolean isFirstSentence) {
aoqi@0 122 this(element);
aoqi@0 123 this.isFirstSentence = isFirstSentence;
aoqi@0 124 }
aoqi@0 125
aoqi@0 126 public Input copy() {
aoqi@0 127 Input clone = new Input(this.element);
aoqi@0 128 clone.taglet = this.taglet;
aoqi@0 129 clone.tagId = this.tagId;
aoqi@0 130 clone.tag = this.tag;
aoqi@0 131 clone.isFirstSentence = this.isFirstSentence;
aoqi@0 132 clone.isInheritDocTag = this.isInheritDocTag;
aoqi@0 133 clone.isTypeVariableParamTag = this.isTypeVariableParamTag;
aoqi@0 134 if (clone.element == null)
aoqi@0 135 throw new NullPointerException();
aoqi@0 136 return clone;
aoqi@0 137
aoqi@0 138 }
aoqi@0 139 }
aoqi@0 140
aoqi@0 141 /**
aoqi@0 142 * The class that encapsulates the output.
aoqi@0 143 */
aoqi@0 144 public static class Output {
aoqi@0 145 /**
aoqi@0 146 * The tag that holds the documentation. Null if documentation
aoqi@0 147 * is not held by a tag.
aoqi@0 148 */
aoqi@0 149 public Tag holderTag;
aoqi@0 150
aoqi@0 151 /**
aoqi@0 152 * The Doc object that holds the documentation.
aoqi@0 153 */
aoqi@0 154 public Doc holder;
aoqi@0 155
aoqi@0 156 /**
aoqi@0 157 * The inherited documentation.
aoqi@0 158 */
aoqi@0 159 public Tag[] inlineTags = new Tag[] {};
aoqi@0 160
aoqi@0 161 /**
aoqi@0 162 * False if documentation could not be inherited.
aoqi@0 163 */
aoqi@0 164 public boolean isValidInheritDocTag = true;
aoqi@0 165
aoqi@0 166 /**
aoqi@0 167 * When automatically inheriting throws tags, you sometime must inherit
aoqi@0 168 * more than one tag. For example if the element declares that it throws
aoqi@0 169 * IOException and the overridden element has throws tags for IOException and
aoqi@0 170 * ZipException, both tags would be inherited because ZipException is a
aoqi@0 171 * subclass of IOException. This subclass of DocFinder.Output allows
aoqi@0 172 * multiple tag inheritence.
aoqi@0 173 */
aoqi@0 174 public List<Tag> tagList = new ArrayList<Tag>();
aoqi@0 175 }
aoqi@0 176
aoqi@0 177 /**
aoqi@0 178 * Search for the requested comments in the given element. If it does not
aoqi@0 179 * have comments, return documentation from the overriden element if possible.
aoqi@0 180 * If the overriden element does not exist or does not have documentation to
aoqi@0 181 * inherit, search for documentation to inherit from implemented methods.
aoqi@0 182 *
aoqi@0 183 * @param input the input object used to perform the search.
aoqi@0 184 *
aoqi@0 185 * @return an Output object representing the documentation that was found.
aoqi@0 186 */
aoqi@0 187 public static Output search(Input input) {
aoqi@0 188 Output output = new Output();
aoqi@0 189 if (input.isInheritDocTag) {
aoqi@0 190 //Do nothing because "element" does not have any documentation.
aoqi@0 191 //All it has it {@inheritDoc}.
aoqi@0 192 } else if (input.taglet == null) {
aoqi@0 193 //We want overall documentation.
aoqi@0 194 output.inlineTags = input.isFirstSentence ?
aoqi@0 195 input.element.firstSentenceTags() :
aoqi@0 196 input.element.inlineTags();
aoqi@0 197 output.holder = input.element;
aoqi@0 198 } else {
aoqi@0 199 input.taglet.inherit(input, output);
aoqi@0 200 }
aoqi@0 201
aoqi@0 202 if (output.inlineTags != null && output.inlineTags.length > 0) {
aoqi@0 203 return output;
aoqi@0 204 }
aoqi@0 205 output.isValidInheritDocTag = false;
aoqi@0 206 Input inheritedSearchInput = input.copy();
aoqi@0 207 inheritedSearchInput.isInheritDocTag = false;
aoqi@0 208 if (input.element instanceof MethodDoc) {
aoqi@0 209 MethodDoc overriddenMethod = ((MethodDoc) input.element).overriddenMethod();
aoqi@0 210 if (overriddenMethod != null) {
aoqi@0 211 inheritedSearchInput.element = overriddenMethod;
aoqi@0 212 output = search(inheritedSearchInput);
aoqi@0 213 output.isValidInheritDocTag = true;
aoqi@0 214 if (output.inlineTags.length > 0) {
aoqi@0 215 return output;
aoqi@0 216 }
aoqi@0 217 }
aoqi@0 218 //NOTE: When we fix the bug where ClassDoc.interfaceTypes() does
aoqi@0 219 // not pass all implemented interfaces, we will use the
aoqi@0 220 // appropriate element here.
aoqi@0 221 MethodDoc[] implementedMethods =
aoqi@0 222 (new ImplementedMethods((MethodDoc) input.element, null)).build(false);
aoqi@0 223 for (int i = 0; i < implementedMethods.length; i++) {
aoqi@0 224 inheritedSearchInput.element = implementedMethods[i];
aoqi@0 225 output = search(inheritedSearchInput);
aoqi@0 226 output.isValidInheritDocTag = true;
aoqi@0 227 if (output.inlineTags.length > 0) {
aoqi@0 228 return output;
aoqi@0 229 }
aoqi@0 230 }
aoqi@0 231 } else if (input.element instanceof ClassDoc) {
aoqi@0 232 ProgramElementDoc superclass = ((ClassDoc) input.element).superclass();
aoqi@0 233 if (superclass != null) {
aoqi@0 234 inheritedSearchInput.element = superclass;
aoqi@0 235 output = search(inheritedSearchInput);
aoqi@0 236 output.isValidInheritDocTag = true;
aoqi@0 237 if (output.inlineTags.length > 0) {
aoqi@0 238 return output;
aoqi@0 239 }
aoqi@0 240 }
aoqi@0 241 }
aoqi@0 242 return output;
aoqi@0 243 }
aoqi@0 244 }

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