/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 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).
 *
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package com.sun.tools.javac.parser;

import java.util.HashMap;
import java.util.Map;

import com.sun.tools.javac.parser.Tokens.Comment;
import com.sun.tools.javac.tree.DCTree.DCDocComment;
import com.sun.tools.javac.tree.DocCommentTable;
import com.sun.tools.javac.tree.JCTree;
import com.sun.tools.javac.util.DiagnosticSource;


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.

/** * * <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> */
public class LazyDocCommentTable implements DocCommentTable { private static class Entry { final Comment comment; DCDocComment tree; Entry(Comment c) { comment = c; } } ParserFactory fac; DiagnosticSource diagSource; Map<JCTree, Entry> table; LazyDocCommentTable(ParserFactory fac) { this.fac = fac; diagSource = fac.log.currentSource(); table = new HashMap<>(); } public boolean hasComment(JCTree tree) { return table.containsKey(tree); } public Comment getComment(JCTree tree) { Entry e = table.get(tree); return (e == null) ? null : e.comment; } public String getCommentText(JCTree tree) { Comment c = getComment(tree); return (c == null) ? null : c.getText(); } public DCDocComment getCommentTree(JCTree tree) { Entry e = table.get(tree); if (e == null) return null; if (e.tree == null) e.tree = new DocCommentParser(fac, diagSource, e.comment).parse(); return e.tree; } public void putComment(JCTree tree, Comment c) { table.put(tree, new Entry(c)); } }