aoqi@0: /*
aoqi@0:  * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.  Oracle designates this
aoqi@0:  * particular file as subject to the "Classpath" exception as provided
aoqi@0:  * by Oracle in the LICENSE file that accompanied this code.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: 
aoqi@0: package com.sun.tools.javac.parser;
aoqi@0: 
aoqi@0: import java.util.HashMap;
aoqi@0: import java.util.Map;
aoqi@0: 
aoqi@0: import com.sun.tools.javac.parser.Tokens.Comment;
aoqi@0: import com.sun.tools.javac.tree.DCTree.DCDocComment;
aoqi@0: import com.sun.tools.javac.tree.DocCommentTable;
aoqi@0: import com.sun.tools.javac.tree.JCTree;
aoqi@0: import com.sun.tools.javac.util.DiagnosticSource;
aoqi@0: 
aoqi@0: 
aoqi@0: /**
aoqi@0:  *
aoqi@0:  *  <p><b>This is NOT part of any supported API.
aoqi@0:  *  If you write code that depends on this, you do so at your own risk.
aoqi@0:  *  This code and its internal interfaces are subject to change or
aoqi@0:  *  deletion without notice.</b>
aoqi@0:  */
aoqi@0: public class LazyDocCommentTable implements DocCommentTable {
aoqi@0:     private static class Entry {
aoqi@0:         final Comment comment;
aoqi@0:         DCDocComment tree;
aoqi@0: 
aoqi@0:         Entry(Comment c) {
aoqi@0:             comment = c;
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     ParserFactory fac;
aoqi@0:     DiagnosticSource diagSource;
aoqi@0:     Map<JCTree, Entry> table;
aoqi@0: 
aoqi@0:     LazyDocCommentTable(ParserFactory fac) {
aoqi@0:         this.fac = fac;
aoqi@0:         diagSource = fac.log.currentSource();
aoqi@0:         table = new HashMap<JCTree, Entry>();
aoqi@0:     }
aoqi@0: 
aoqi@0:     public boolean hasComment(JCTree tree) {
aoqi@0:         return table.containsKey(tree);
aoqi@0:     }
aoqi@0: 
aoqi@0:     public Comment getComment(JCTree tree) {
aoqi@0:         Entry e = table.get(tree);
aoqi@0:         return (e == null) ? null : e.comment;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public String getCommentText(JCTree tree) {
aoqi@0:         Comment c = getComment(tree);
aoqi@0:         return (c == null) ? null : c.getText();
aoqi@0:     }
aoqi@0: 
aoqi@0:     public DCDocComment getCommentTree(JCTree tree) {
aoqi@0:         Entry e = table.get(tree);
aoqi@0:         if (e == null)
aoqi@0:             return null;
aoqi@0:         if (e.tree == null)
aoqi@0:             e.tree = new DocCommentParser(fac, diagSource, e.comment).parse();
aoqi@0:         return e.tree;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void putComment(JCTree tree, Comment c) {
aoqi@0:         table.put(tree, new Entry(c));
aoqi@0:     }
aoqi@0: 
aoqi@0: }