jdk8-mips64-public/langtools: src/share/classes/com/sun/tools/doclint/Env.java@8dd528992c15 (annotated)

src/share/classes/com/sun/tools/doclint/Env.java@8dd528992c15 (annotated)

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

Fri, 10 May 2013 15:15:50 +0200

author: jlahoda
date: Fri, 10 May 2013 15:15:50 +0200
changeset 1734: 8dd528992c15
parent 1668: 991f11e13598
child 1895: 37031963493e
permissions: -rw-r--r--

8012929: Trees.getElement should work not only for declaration trees, but also for use-trees
Reviewed-by: jjg
Contributed-by: Dusan Balek <dbalek@netbeans.org>, Jan Lahoda <jlahoda@netbeans.org>

 /*
  * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Oracle designates this
  * particular file as subject to the "Classpath" exception as provided
  * by Oracle in the LICENSE file that accompanied this code.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  */
 package com.sun.tools.doclint;
 import java.util.Set;
 import javax.lang.model.element.Element;
 import javax.lang.model.element.ElementKind;
 import javax.lang.model.element.ExecutableElement;
 import javax.lang.model.element.Modifier;
 import javax.lang.model.type.TypeMirror;
 import javax.lang.model.util.Elements;
 import javax.lang.model.util.Types;
 import com.sun.source.doctree.DocCommentTree;
 import com.sun.source.util.DocTrees;
 import com.sun.source.util.JavacTask;
 import com.sun.source.util.SourcePositions;
 import com.sun.source.util.TreePath;
 import com.sun.tools.javac.model.JavacTypes;
 import com.sun.tools.javac.tree.JCTree;
 /**
  * Utility container for current execution environment,
  * providing the current declaration and its doc comment.
  *
  * <p><b>This is NOT part of any supported API.
  * If you write code that depends on this, you do so at your own
  * risk.  This code and its internal interfaces are subject to change
  * or deletion without notice.</b></p>
  */
 public class Env {
     /**
      * Access kinds for declarations.
      */
     public enum AccessKind {
         PRIVATE,
         PACKAGE,
         PROTECTED,
         PUBLIC;
         static boolean accepts(String opt) {
             for (AccessKind g: values())
                 if (opt.equals(g.name().toLowerCase())) return true;
             return false;
         }
         static AccessKind of(Set<Modifier> mods) {
             if (mods.contains(Modifier.PUBLIC))
                 return AccessKind.PUBLIC;
             else if (mods.contains(Modifier.PROTECTED))
                 return AccessKind.PROTECTED;
             else if (mods.contains(Modifier.PRIVATE))
                 return AccessKind.PRIVATE;
             else
                 return AccessKind.PACKAGE;
         }
     };
     /** Message handler. */
     final Messages messages;
     int implicitHeaderLevel = 0;
     // Utility classes
     DocTrees trees;
     Elements elements;
     Types types;
     // Types used when analysing doc comments.
     TypeMirror java_lang_Error;
     TypeMirror java_lang_RuntimeException;
     TypeMirror java_lang_Throwable;
     TypeMirror java_lang_Void;
     /** The path for the declaration containing the comment currently being analyzed. */
     TreePath currPath;
     /** The element for the declaration containing the comment currently being analyzed. */
     Element currElement;
     /** The comment current being analyzed. */
     DocCommentTree currDocComment;
     /**
      * The access kind of the declaration containing the comment currently being analyzed.
      * This is the minimum (most restrictive) access kind of the declaration itself
      * and that of its containers. For example, a public method in a private class is
      * noted as private.
      */
     AccessKind currAccess;
     /** The set of methods, if any, that the current declaration overrides. */
     Set<? extends ExecutableElement> currOverriddenMethods;
     Env() {
         messages = new Messages(this);
     }
     void init(JavacTask task) {
         init(DocTrees.instance(task), task.getElements(), task.getTypes());
     }
     void init(DocTrees trees, Elements elements, Types types) {
         this.trees = trees;
         this.elements = elements;
         this.types = types;
         java_lang_Error = elements.getTypeElement("java.lang.Error").asType();
         java_lang_RuntimeException = elements.getTypeElement("java.lang.RuntimeException").asType();
         java_lang_Throwable = elements.getTypeElement("java.lang.Throwable").asType();
         java_lang_Void = elements.getTypeElement("java.lang.Void").asType();
     }
     void setImplicitHeaders(int n) {
         implicitHeaderLevel = n;
     }
     /** Set the current declaration and its doc comment. */
     void setCurrent(TreePath path, DocCommentTree comment) {
         currPath = path;
         currDocComment = comment;
         currElement = trees.getElement(currPath);
         currOverriddenMethods = ((JavacTypes) types).getOverriddenMethods(currElement);
         AccessKind ak = null;
         for (TreePath p = path; p != null; p = p.getParentPath()) {
             Element e = trees.getElement(p);
             if (e != null && e.getKind() != ElementKind.PACKAGE) {
                 ak = min(ak, AccessKind.of(e.getModifiers()));
             }
         }
         currAccess = ak;
     }
     AccessKind getAccessKind() {
         return currAccess;
     }
     long getPos(TreePath p) {
         return ((JCTree) p.getLeaf()).pos;
     }
     long getStartPos(TreePath p) {
         SourcePositions sp = trees.getSourcePositions();
         return sp.getStartPosition(p.getCompilationUnit(), p.getLeaf());
     }
     private <T extends Comparable<T>> T min(T item1, T item2) {
         return (item1 == null) ? item2
                 : (item2 == null) ? item1
                 : item1.compareTo(item2) <= 0 ? item1 : item2;
     }
 }

Mercurial > jdk8-mips64-public > langtools / annotate

src/share/classes/com/sun/tools/doclint/Env.java@8dd528992c15 (annotated)

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