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

Wed, 23 Jan 2013 13:27:24 -0800

author
jjg
date
Wed, 23 Jan 2013 13:27:24 -0800
changeset 1521
71f35e4b93a5
parent 1359
25e14ad23cef
child 1691
f10cffab99b4
permissions
-rw-r--r--

8006775: JSR 308: Compiler changes in JDK8
Reviewed-by: jjg
Contributed-by: mernst@cs.washington.edu, wmdietl@cs.washington.edu, mpapi@csail.mit.edu, mahmood@notnoop.com

duke@1 1 /*
jjg@1521 2 * Copyright (c) 2003, 2013, 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.util.links;
duke@1 27
duke@1 28 import com.sun.javadoc.*;
duke@1 29
duke@1 30 /**
duke@1 31 * A factory that constructs links from given link information.
duke@1 32 *
jjg@1359 33 * <p><b>This is NOT part of any supported API.
jjg@1359 34 * If you write code that depends on this, you do so at your own risk.
jjg@1359 35 * This code and its internal interfaces are subject to change or
jjg@1359 36 * deletion without notice.</b>
jjg@1359 37 *
duke@1 38 * @author Jamie Ho
duke@1 39 * @since 1.5
duke@1 40 */
duke@1 41 public abstract class LinkFactory {
duke@1 42
duke@1 43 /**
duke@1 44 * Return an empty instance of the link output object.
duke@1 45 *
duke@1 46 * @return an empty instance of the link output object.
duke@1 47 */
duke@1 48 protected abstract LinkOutput getOutputInstance();
duke@1 49
duke@1 50 /**
duke@1 51 * Constructs a link from the given link information.
duke@1 52 *
duke@1 53 * @param linkInfo the information about the link.
duke@1 54 * @return the output of the link.
duke@1 55 */
duke@1 56 public LinkOutput getLinkOutput(LinkInfo linkInfo) {
duke@1 57 if (linkInfo.type != null) {
duke@1 58 Type type = linkInfo.type;
duke@1 59 LinkOutput linkOutput = getOutputInstance();
duke@1 60 if (type.isPrimitive()) {
duke@1 61 //Just a primitive.
duke@1 62 linkInfo.displayLength += type.typeName().length();
duke@1 63 linkOutput.append(type.typeName());
jjg@1521 64 } else if (type.asAnnotatedType() != null) {
jjg@1521 65 linkOutput.append(getTypeAnnotationLinks(linkInfo));
jjg@1521 66 linkInfo.type = type.asAnnotatedType().underlyingType();
jjg@1521 67 linkOutput.append(getLinkOutput(linkInfo));
jjg@1521 68 return linkOutput;
duke@1 69 } else if (type.asWildcardType() != null) {
duke@1 70 //Wildcard type.
duke@1 71 linkInfo.isTypeBound = true;
duke@1 72 linkInfo.displayLength += 1;
duke@1 73 linkOutput.append("?");
duke@1 74 WildcardType wildcardType = type.asWildcardType();
duke@1 75 Type[] extendsBounds = wildcardType.extendsBounds();
duke@1 76 for (int i = 0; i < extendsBounds.length; i++) {
duke@1 77 linkInfo.displayLength += i > 0 ? 2 : 9;
duke@1 78 linkOutput.append(i > 0 ? ", " : " extends ");
duke@1 79 setBoundsLinkInfo(linkInfo, extendsBounds[i]);
duke@1 80 linkOutput.append(getLinkOutput(linkInfo));
duke@1 81 }
duke@1 82 Type[] superBounds = wildcardType.superBounds();
duke@1 83 for (int i = 0; i < superBounds.length; i++) {
duke@1 84 linkInfo.displayLength += i > 0 ? 2 : 7;
duke@1 85 linkOutput.append(i > 0 ? ", " : " super ");
duke@1 86 setBoundsLinkInfo(linkInfo, superBounds[i]);
duke@1 87 linkOutput.append(getLinkOutput(linkInfo));
duke@1 88 }
duke@1 89 } else if (type.asTypeVariable()!= null) {
jjg@1521 90 linkOutput.append(getTypeAnnotationLinks(linkInfo));
duke@1 91 linkInfo.isTypeBound = true;
duke@1 92 //A type variable.
duke@1 93 Doc owner = type.asTypeVariable().owner();
duke@1 94 if ((! linkInfo.excludeTypeParameterLinks) &&
duke@1 95 owner instanceof ClassDoc) {
duke@1 96 linkInfo.classDoc = (ClassDoc) owner;
duke@1 97 linkInfo.label = type.typeName();
jjg@74 98 linkOutput.append(getClassLink(linkInfo));
duke@1 99 } else {
duke@1 100 //No need to link method type parameters.
duke@1 101 linkInfo.displayLength += type.typeName().length();
duke@1 102 linkOutput.append(type.typeName());
duke@1 103 }
duke@1 104
duke@1 105 Type[] bounds = type.asTypeVariable().bounds();
duke@1 106 if (! linkInfo.excludeTypeBounds) {
duke@1 107 linkInfo.excludeTypeBounds = true;
duke@1 108 for (int i = 0; i < bounds.length; i++) {
duke@1 109 linkInfo.displayLength += i > 0 ? 2 : 9;
duke@1 110 linkOutput.append(i > 0 ? " & " : " extends ");
duke@1 111 setBoundsLinkInfo(linkInfo, bounds[i]);
duke@1 112 linkOutput.append(getLinkOutput(linkInfo));
duke@1 113 }
duke@1 114 }
duke@1 115 } else if (type.asClassDoc() != null) {
duke@1 116 //A class type.
duke@1 117 if (linkInfo.isTypeBound &&
duke@1 118 linkInfo.excludeTypeBoundsLinks) {
duke@1 119 //Since we are excluding type parameter links, we should not
duke@1 120 //be linking to the type bound.
duke@1 121 linkInfo.displayLength += type.typeName().length();
duke@1 122 linkOutput.append(type.typeName());
duke@1 123 linkOutput.append(getTypeParameterLinks(linkInfo));
duke@1 124 return linkOutput;
duke@1 125 } else {
duke@1 126 linkInfo.classDoc = type.asClassDoc();
jjg@74 127 linkOutput = getClassLink(linkInfo);
duke@1 128 if (linkInfo.includeTypeAsSepLink) {
duke@1 129 linkOutput.append(getTypeParameterLinks(linkInfo, false));
duke@1 130 }
duke@1 131 }
duke@1 132 }
duke@1 133
duke@1 134 if (linkInfo.isVarArg) {
duke@1 135 if (type.dimension().length() > 2) {
duke@1 136 //Javadoc returns var args as array.
duke@1 137 //Strip out the first [] from the var arg.
duke@1 138 linkInfo.displayLength += type.dimension().length()-2;
duke@1 139 linkOutput.append(type.dimension().substring(2));
duke@1 140 }
duke@1 141 linkInfo.displayLength += 3;
duke@1 142 linkOutput.append("...");
duke@1 143 } else {
duke@1 144 linkInfo.displayLength += type.dimension().length();
duke@1 145 linkOutput.append(type.dimension());
duke@1 146 }
duke@1 147 return linkOutput;
duke@1 148 } else if (linkInfo.classDoc != null) {
duke@1 149 //Just a class link
jjg@74 150 LinkOutput linkOutput = getClassLink(linkInfo);
duke@1 151 if (linkInfo.includeTypeAsSepLink) {
duke@1 152 linkOutput.append(getTypeParameterLinks(linkInfo, false));
duke@1 153 }
duke@1 154 return linkOutput;
duke@1 155 } else {
duke@1 156 return null;
duke@1 157 }
duke@1 158 }
duke@1 159
duke@1 160 private void setBoundsLinkInfo(LinkInfo linkInfo, Type bound) {
duke@1 161 linkInfo.classDoc = null;
duke@1 162 linkInfo.label = null;
duke@1 163 linkInfo.type = bound;
duke@1 164 }
duke@1 165
duke@1 166 /**
duke@1 167 * Return the link to the given class.
duke@1 168 *
duke@1 169 * @param linkInfo the information about the link to construct.
duke@1 170 *
duke@1 171 * @return the link for the given class.
duke@1 172 */
duke@1 173 protected abstract LinkOutput getClassLink(LinkInfo linkInfo);
duke@1 174
duke@1 175 /**
duke@1 176 * Return the link to the given type parameter.
duke@1 177 *
duke@1 178 * @param linkInfo the information about the link to construct.
duke@1 179 * @param typeParam the type parameter to link to.
duke@1 180 */
duke@1 181 protected abstract LinkOutput getTypeParameterLink(LinkInfo linkInfo,
duke@1 182 Type typeParam);
duke@1 183
jjg@1521 184 protected abstract LinkOutput getTypeAnnotationLink(LinkInfo linkInfo,
jjg@1521 185 AnnotationDesc annotation);
jjg@1521 186
duke@1 187 /**
duke@1 188 * Return the links to the type parameters.
duke@1 189 *
duke@1 190 * @param linkInfo the information about the link to construct.
duke@1 191 * @return the links to the type parameters.
duke@1 192 */
duke@1 193 public LinkOutput getTypeParameterLinks(LinkInfo linkInfo) {
duke@1 194 return getTypeParameterLinks(linkInfo, true);
duke@1 195 }
duke@1 196
duke@1 197 /**
duke@1 198 * Return the links to the type parameters.
duke@1 199 *
duke@1 200 * @param linkInfo the information about the link to construct.
duke@1 201 * @param isClassLabel true if this is a class label. False if it is
duke@1 202 * the type parameters portion of the link.
duke@1 203 * @return the links to the type parameters.
duke@1 204 */
duke@1 205 public LinkOutput getTypeParameterLinks(LinkInfo linkInfo, boolean isClassLabel) {
duke@1 206 LinkOutput output = getOutputInstance();
duke@1 207 Type[] vars;
duke@1 208 if (linkInfo.executableMemberDoc != null) {
duke@1 209 vars = linkInfo.executableMemberDoc.typeParameters();
duke@1 210 } else if (linkInfo.type != null &&
duke@1 211 linkInfo.type.asParameterizedType() != null){
duke@1 212 vars = linkInfo.type.asParameterizedType().typeArguments();
duke@1 213 } else if (linkInfo.classDoc != null){
duke@1 214 vars = linkInfo.classDoc.typeParameters();
duke@1 215 } else {
duke@1 216 //Nothing to document.
duke@1 217 return output;
duke@1 218 }
duke@1 219 if (((linkInfo.includeTypeInClassLinkLabel && isClassLabel) ||
duke@1 220 (linkInfo.includeTypeAsSepLink && ! isClassLabel)
duke@1 221 )
duke@1 222 && vars.length > 0) {
duke@1 223 linkInfo.displayLength += 1;
duke@1 224 output.append(getLessThanString());
duke@1 225 for (int i = 0; i < vars.length; i++) {
duke@1 226 if (i > 0) {
duke@1 227 linkInfo.displayLength += 1;
duke@1 228 output.append(",");
duke@1 229 }
duke@1 230 output.append(getTypeParameterLink(linkInfo, vars[i]));
duke@1 231 }
duke@1 232 linkInfo.displayLength += 1;
duke@1 233 output.append(getGreaterThanString());
duke@1 234 }
duke@1 235 return output;
duke@1 236 }
duke@1 237
jjg@1521 238 public LinkOutput getTypeAnnotationLinks(LinkInfo linkInfo) {
jjg@1521 239 LinkOutput output = getOutputInstance();
jjg@1521 240 if (linkInfo.type.asAnnotatedType() == null)
jjg@1521 241 return output;
jjg@1521 242 AnnotationDesc[] annotations = linkInfo.type.asAnnotatedType().annotations();
jjg@1521 243 for (int i = 0; i < annotations.length; i++) {
jjg@1521 244 if (i > 0) {
jjg@1521 245 linkInfo.displayLength += 1;
jjg@1521 246 output.append(" ");
jjg@1521 247 }
jjg@1521 248 output.append(getTypeAnnotationLink(linkInfo, annotations[i]));
jjg@1521 249 }
jjg@1521 250
jjg@1521 251 linkInfo.displayLength += 1;
jjg@1521 252 output.append(" ");
jjg@1521 253 return output;
jjg@1521 254 }
jjg@1521 255
duke@1 256 /**
duke@1 257 * Return &amp;lt;, which is used in type parameters. Override this
duke@1 258 * if your doclet uses something different.
duke@1 259 *
duke@1 260 * @return return &amp;lt;, which is used in type parameters.
duke@1 261 */
duke@1 262 protected String getLessThanString() {
duke@1 263 return "&lt;";
duke@1 264 }
duke@1 265
duke@1 266 /**
duke@1 267 * Return &amp;gt;, which is used in type parameters. Override this
duke@1 268 * if your doclet uses something different.
duke@1 269 *
duke@1 270 * @return return &amp;gt;, which is used in type parameters.
duke@1 271 */
duke@1 272 protected String getGreaterThanString() {
duke@1 273 return "&gt;";
duke@1 274 }
duke@1 275 }

mercurial