src/share/classes/com/sun/tools/doclint/Env.java

Thu, 24 Oct 2013 11:22:50 -0700

author
bpatel
date
Thu, 24 Oct 2013 11:22:50 -0700
changeset 2169
667843bd2193
parent 1895
37031963493e
child 2413
fe033d997ddf
permissions
-rw-r--r--

8006248: Since addition of -Xdoclint, javadoc ignores unknown tags
Reviewed-by: jjg

jjg@1455 1 /*
jjg@1668 2 * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
jjg@1455 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
jjg@1455 4 *
jjg@1455 5 * This code is free software; you can redistribute it and/or modify it
jjg@1455 6 * under the terms of the GNU General Public License version 2 only, as
jjg@1455 7 * published by the Free Software Foundation. Oracle designates this
jjg@1455 8 * particular file as subject to the "Classpath" exception as provided
jjg@1455 9 * by Oracle in the LICENSE file that accompanied this code.
jjg@1455 10 *
jjg@1455 11 * This code is distributed in the hope that it will be useful, but WITHOUT
jjg@1455 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
jjg@1455 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
jjg@1455 14 * version 2 for more details (a copy is included in the LICENSE file that
jjg@1455 15 * accompanied this code).
jjg@1455 16 *
jjg@1455 17 * You should have received a copy of the GNU General Public License version
jjg@1455 18 * 2 along with this work; if not, write to the Free Software Foundation,
jjg@1455 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
jjg@1455 20 *
jjg@1455 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
jjg@1455 22 * or visit www.oracle.com if you need additional information or have any
jjg@1455 23 * questions.
jjg@1455 24 */
jjg@1455 25
jjg@1455 26 package com.sun.tools.doclint;
jjg@1455 27
jjg@1455 28
jjg@1455 29 import java.util.Set;
bpatel@2169 30 import java.util.LinkedHashSet;
jjg@1455 31
jjg@1455 32 import javax.lang.model.element.Element;
jlahoda@1734 33 import javax.lang.model.element.ElementKind;
jjg@1455 34 import javax.lang.model.element.ExecutableElement;
jjg@1455 35 import javax.lang.model.element.Modifier;
jjg@1455 36 import javax.lang.model.type.TypeMirror;
jjg@1455 37 import javax.lang.model.util.Elements;
jjg@1455 38 import javax.lang.model.util.Types;
jjg@1455 39
jjg@1455 40 import com.sun.source.doctree.DocCommentTree;
jjg@1455 41 import com.sun.source.util.DocTrees;
jjg@1455 42 import com.sun.source.util.JavacTask;
jjg@1455 43 import com.sun.source.util.SourcePositions;
jjg@1455 44 import com.sun.source.util.TreePath;
jjg@1455 45 import com.sun.tools.javac.model.JavacTypes;
jjg@1455 46 import com.sun.tools.javac.tree.JCTree;
jjg@1455 47
jjg@1455 48 /**
jjg@1455 49 * Utility container for current execution environment,
jjg@1455 50 * providing the current declaration and its doc comment.
jjg@1455 51 *
jjg@1455 52 * <p><b>This is NOT part of any supported API.
jjg@1455 53 * If you write code that depends on this, you do so at your own
jjg@1455 54 * risk. This code and its internal interfaces are subject to change
jjg@1455 55 * or deletion without notice.</b></p>
jjg@1455 56 */
jjg@1455 57 public class Env {
jjg@1455 58 /**
jjg@1455 59 * Access kinds for declarations.
jjg@1455 60 */
jjg@1455 61 public enum AccessKind {
jjg@1455 62 PRIVATE,
jjg@1455 63 PACKAGE,
jjg@1455 64 PROTECTED,
jjg@1455 65 PUBLIC;
jjg@1455 66
jjg@1455 67 static boolean accepts(String opt) {
jjg@1455 68 for (AccessKind g: values())
jjg@1455 69 if (opt.equals(g.name().toLowerCase())) return true;
jjg@1455 70 return false;
jjg@1455 71 }
jjg@1455 72
jjg@1455 73 static AccessKind of(Set<Modifier> mods) {
jjg@1455 74 if (mods.contains(Modifier.PUBLIC))
jjg@1455 75 return AccessKind.PUBLIC;
jjg@1455 76 else if (mods.contains(Modifier.PROTECTED))
jjg@1455 77 return AccessKind.PROTECTED;
jjg@1455 78 else if (mods.contains(Modifier.PRIVATE))
jjg@1455 79 return AccessKind.PRIVATE;
jjg@1455 80 else
jjg@1455 81 return AccessKind.PACKAGE;
jjg@1455 82 }
jjg@1455 83 };
jjg@1455 84
jjg@1455 85 /** Message handler. */
jjg@1455 86 final Messages messages;
jjg@1455 87
jjg@1668 88 int implicitHeaderLevel = 0;
jjg@1668 89
bpatel@2169 90 Set<String> customTags;
bpatel@2169 91
jjg@1455 92 // Utility classes
jjg@1455 93 DocTrees trees;
jjg@1455 94 Elements elements;
jjg@1455 95 Types types;
jjg@1455 96
jjg@1455 97 // Types used when analysing doc comments.
jjg@1455 98 TypeMirror java_lang_Error;
jjg@1455 99 TypeMirror java_lang_RuntimeException;
jjg@1455 100 TypeMirror java_lang_Throwable;
jjg@1455 101 TypeMirror java_lang_Void;
jjg@1455 102
jjg@1455 103 /** The path for the declaration containing the comment currently being analyzed. */
jjg@1455 104 TreePath currPath;
jjg@1455 105 /** The element for the declaration containing the comment currently being analyzed. */
jjg@1455 106 Element currElement;
jjg@1455 107 /** The comment current being analyzed. */
jjg@1455 108 DocCommentTree currDocComment;
jjg@1455 109 /**
jjg@1455 110 * The access kind of the declaration containing the comment currently being analyzed.
jjg@1668 111 * This is the minimum (most restrictive) access kind of the declaration itself
jjg@1455 112 * and that of its containers. For example, a public method in a private class is
jjg@1455 113 * noted as private.
jjg@1455 114 */
jjg@1455 115 AccessKind currAccess;
jjg@1455 116 /** The set of methods, if any, that the current declaration overrides. */
jjg@1455 117 Set<? extends ExecutableElement> currOverriddenMethods;
jjg@1455 118
jjg@1455 119 Env() {
jjg@1455 120 messages = new Messages(this);
jjg@1455 121 }
jjg@1455 122
jjg@1455 123 void init(JavacTask task) {
jjg@1455 124 init(DocTrees.instance(task), task.getElements(), task.getTypes());
jjg@1455 125 }
jjg@1455 126
jjg@1455 127 void init(DocTrees trees, Elements elements, Types types) {
jjg@1455 128 this.trees = trees;
jjg@1455 129 this.elements = elements;
jjg@1455 130 this.types = types;
jjg@1455 131 java_lang_Error = elements.getTypeElement("java.lang.Error").asType();
jjg@1455 132 java_lang_RuntimeException = elements.getTypeElement("java.lang.RuntimeException").asType();
jjg@1455 133 java_lang_Throwable = elements.getTypeElement("java.lang.Throwable").asType();
jjg@1455 134 java_lang_Void = elements.getTypeElement("java.lang.Void").asType();
jjg@1455 135 }
jjg@1455 136
jjg@1668 137 void setImplicitHeaders(int n) {
jjg@1668 138 implicitHeaderLevel = n;
jjg@1668 139 }
jjg@1668 140
bpatel@2169 141 void setCustomTags(String cTags) {
bpatel@2169 142 customTags = new LinkedHashSet<String>();
bpatel@2169 143 for (String s : cTags.split(DocLint.TAGS_SEPARATOR)) {
bpatel@2169 144 if (!s.isEmpty())
bpatel@2169 145 customTags.add(s);
bpatel@2169 146 }
bpatel@2169 147 }
bpatel@2169 148
jjg@1455 149 /** Set the current declaration and its doc comment. */
jjg@1455 150 void setCurrent(TreePath path, DocCommentTree comment) {
jjg@1455 151 currPath = path;
jjg@1455 152 currDocComment = comment;
jjg@1455 153 currElement = trees.getElement(currPath);
jjg@1455 154 currOverriddenMethods = ((JavacTypes) types).getOverriddenMethods(currElement);
jjg@1455 155
jjg@1895 156 AccessKind ak = AccessKind.PUBLIC;
jjg@1455 157 for (TreePath p = path; p != null; p = p.getParentPath()) {
jjg@1455 158 Element e = trees.getElement(p);
jlahoda@1734 159 if (e != null && e.getKind() != ElementKind.PACKAGE) {
jjg@1455 160 ak = min(ak, AccessKind.of(e.getModifiers()));
jjg@1455 161 }
jjg@1455 162 }
jjg@1455 163 currAccess = ak;
jjg@1455 164 }
jjg@1455 165
jjg@1455 166 AccessKind getAccessKind() {
jjg@1455 167 return currAccess;
jjg@1455 168 }
jjg@1455 169
jjg@1455 170 long getPos(TreePath p) {
jjg@1455 171 return ((JCTree) p.getLeaf()).pos;
jjg@1455 172 }
jjg@1455 173
jjg@1455 174 long getStartPos(TreePath p) {
jjg@1455 175 SourcePositions sp = trees.getSourcePositions();
jjg@1455 176 return sp.getStartPosition(p.getCompilationUnit(), p.getLeaf());
jjg@1455 177 }
jjg@1455 178
jjg@1455 179 private <T extends Comparable<T>> T min(T item1, T item2) {
jjg@1455 180 return (item1 == null) ? item2
jjg@1455 181 : (item2 == null) ? item1
jjg@1455 182 : item1.compareTo(item2) <= 0 ? item1 : item2;
jjg@1455 183 }
jjg@1455 184 }

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