Mercurial > jdk8-mips64-public > langtools / file revision

 /*

  * Copyright (c) 1997, 2012, 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.javadoc;

 import java.lang.reflect.Modifier;

 import java.text.CollationKey;

 import com.sun.javadoc.*;

 import com.sun.source.util.TreePath;

 import com.sun.tools.javac.code.Attribute;

 import com.sun.tools.javac.code.Symbol;

 import com.sun.tools.javac.code.Symbol.ClassSymbol;

 import com.sun.tools.javac.tree.JCTree;

 import com.sun.tools.javac.tree.JCTree.JCCompilationUnit;

 import com.sun.tools.javac.util.Position;

 /**

  * Represents a java program element: class, interface, field,

  * constructor, or method.

  * This is an abstract class dealing with information common to

  * these elements.

  *

  *  <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>

  *

  * @see MemberDocImpl

  * @see ClassDocImpl

  *

  * @author Robert Field

  * @author Neal Gafter (rewrite)

  * @author Scott Seligman (generics, enums, annotations)

  */

 public abstract class ProgramElementDocImpl

         extends DocImpl implements ProgramElementDoc {

     private final Symbol sym;

     // For source position information.

     JCTree tree = null;

     Position.LineMap lineMap = null;

     // Cache for getModifiers().

     private int modifiers = -1;

     protected ProgramElementDocImpl(DocEnv env, Symbol sym, TreePath treePath) {

         super(env, treePath);

         this.sym = sym;

         if (treePath != null) {

             tree = (JCTree) treePath.getLeaf();

             lineMap = ((JCCompilationUnit) treePath.getCompilationUnit()).lineMap;

         }

     }

     @Override

     void setTreePath(TreePath treePath) {

         super.setTreePath(treePath);

         this.tree = (JCTree) treePath.getLeaf();

         this.lineMap = ((JCCompilationUnit) treePath.getCompilationUnit()).lineMap;

     }

     /**

      * Subclasses override to identify the containing class

      */

     protected abstract ClassSymbol getContainingClass();

     /**

      * Returns the flags in terms of javac's flags

      */

     abstract protected long getFlags();

     /**

      * Returns the modifier flags in terms of java.lang.reflect.Modifier.

      */

     protected int getModifiers() {

         if (modifiers == -1) {

             modifiers = DocEnv.translateModifiers(getFlags());

         }

         return modifiers;

     }

     /**

      * Get the containing class of this program element.

      *

      * @return a ClassDocImpl for this element's containing class.

      * If this is a class with no outer class, return null.

      */

     public ClassDoc containingClass() {

         if (getContainingClass() == null) {

             return null;

         }

         return env.getClassDoc(getContainingClass());

     }

     /**

      * Return the package that this member is contained in.

      * Return "" if in unnamed package.

      */

     public PackageDoc containingPackage() {

         return env.getPackageDoc(getContainingClass().packge());

     }

     /**

      * Get the modifier specifier integer.

      *

      * @see java.lang.reflect.Modifier

      */

     public int modifierSpecifier() {

         int modifiers = getModifiers();

         if (isMethod() && containingClass().isInterface())

             // Remove the implicit abstract modifier.

             return modifiers & ~Modifier.ABSTRACT;

         return modifiers;

     }

     /**

      * Get modifiers string.

      * <pre>

      * Example, for:

      *   public abstract int foo() { ... }

      * modifiers() would return:

      *   'public abstract'

      * </pre>

      * Annotations are not included.

      */

     public String modifiers() {

         int modifiers = getModifiers();

         if (isAnnotationTypeElement() ||

                 (isMethod() && containingClass().isInterface())) {

             // Remove the implicit abstract modifier.

             return Modifier.toString(modifiers & ~Modifier.ABSTRACT);

         } else {

             return Modifier.toString(modifiers);

         }

     }

     /**

      * Get the annotations of this program element.

      * Return an empty array if there are none.

      */

     public AnnotationDesc[] annotations() {

         AnnotationDesc res[] = new AnnotationDesc[sym.getRawAttributes().length()];

         int i = 0;

         for (Attribute.Compound a : sym.getRawAttributes()) {

             res[i++] = new AnnotationDescImpl(env, a);

         }

         return res;

     }

     /**

      * Return true if this program element is public

      */

     public boolean isPublic() {

         int modifiers = getModifiers();

         return Modifier.isPublic(modifiers);

     }

     /**

      * Return true if this program element is protected

      */

     public boolean isProtected() {

         int modifiers = getModifiers();

         return Modifier.isProtected(modifiers);

     }

     /**

      * Return true if this program element is private

      */

     public boolean isPrivate() {

         int modifiers = getModifiers();

         return Modifier.isPrivate(modifiers);

     }

     /**

      * Return true if this program element is package private

      */

     public boolean isPackagePrivate() {

         return !(isPublic() || isPrivate() || isProtected());

     }

     /**

      * Return true if this program element is static

      */

     public boolean isStatic() {

         int modifiers = getModifiers();

         return Modifier.isStatic(modifiers);

     }

     /**

      * Return true if this program element is final

      */

     public boolean isFinal() {

         int modifiers = getModifiers();

         return Modifier.isFinal(modifiers);

     }

     /**

      * Generate a key for sorting.

      */

     CollationKey generateKey() {

         String k = name();

         // System.out.println("COLLATION KEY FOR " + this + " is \"" + k + "\"");

         return env.doclocale.collator.getCollationKey(k);

     }

 }