author | mcimadamore |
Wed, 17 Jul 2013 14:09:46 +0100 | |
changeset 18910 | c967bfda9283 |
parent 5847 | 1908176fd6e3 |
child 22163 | 3651128c74eb |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2001, 2008, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package com.sun.tools.javac.comp; |
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import java.util.AbstractQueue; |
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import com.sun.tools.javac.util.Context; |
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import java.util.HashMap; |
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import java.util.Iterator; |
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import java.util.LinkedList; |
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import java.util.Map; |
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import java.util.Queue; |
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import javax.tools.JavaFileObject; |
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/** A queue of all as yet unattributed classes. |
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* |
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* <p><b>This is NOT part of any supported API. |
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* If you write code that depends on this, you do so at your own risk. |
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* This code and its internal interfaces are subject to change or |
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* deletion without notice.</b> |
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*/ |
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public class Todo extends AbstractQueue<Env<AttrContext>> { |
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/** The context key for the todo list. */ |
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protected static final Context.Key<Todo> todoKey = |
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new Context.Key<Todo>(); |
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/** Get the Todo instance for this context. */ |
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public static Todo instance(Context context) { |
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Todo instance = context.get(todoKey); |
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if (instance == null) |
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instance = new Todo(context); |
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return instance; |
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} |
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/** Create a new todo list. */ |
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protected Todo(Context context) { |
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context.put(todoKey, this); |
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} |
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public void append(Env<AttrContext> env) { |
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add(env); |
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} |
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@Override |
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public Iterator<Env<AttrContext>> iterator() { |
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return contents.iterator(); |
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} |
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@Override |
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public int size() { |
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return contents.size(); |
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} |
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public boolean offer(Env<AttrContext> e) { |
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if (contents.add(e)) { |
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if (contentsByFile != null) |
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addByFile(e); |
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return true; |
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} else { |
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return false; |
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} |
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} |
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public Env<AttrContext> poll() { |
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if (size() == 0) |
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return null; |
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Env<AttrContext> env = contents.remove(0); |
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if (contentsByFile != null) |
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removeByFile(env); |
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return env; |
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} |
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public Env<AttrContext> peek() { |
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return (size() == 0 ? null : contents.get(0)); |
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} |
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public Queue<Queue<Env<AttrContext>>> groupByFile() { |
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if (contentsByFile == null) { |
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contentsByFile = new LinkedList<Queue<Env<AttrContext>>>(); |
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for (Env<AttrContext> env: contents) { |
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addByFile(env); |
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} |
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} |
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return contentsByFile; |
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} |
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private void addByFile(Env<AttrContext> env) { |
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JavaFileObject file = env.toplevel.sourcefile; |
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if (fileMap == null) |
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fileMap = new HashMap<JavaFileObject, FileQueue>(); |
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FileQueue fq = fileMap.get(file); |
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if (fq == null) { |
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fq = new FileQueue(); |
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fileMap.put(file, fq); |
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contentsByFile.add(fq); |
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} |
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fq.fileContents.add(env); |
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} |
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private void removeByFile(Env<AttrContext> env) { |
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JavaFileObject file = env.toplevel.sourcefile; |
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FileQueue fq = fileMap.get(file); |
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if (fq == null) |
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return; |
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if (fq.fileContents.remove(env)) { |
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if (fq.isEmpty()) { |
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fileMap.remove(file); |
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contentsByFile.remove(fq); |
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} |
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} |
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} |
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LinkedList<Env<AttrContext>> contents = new LinkedList<Env<AttrContext>>(); |
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LinkedList<Queue<Env<AttrContext>>> contentsByFile; |
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Map<JavaFileObject, FileQueue> fileMap; |
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class FileQueue extends AbstractQueue<Env<AttrContext>> { |
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@Override |
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public Iterator<Env<AttrContext>> iterator() { |
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return fileContents.iterator(); |
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} |
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@Override |
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public int size() { |
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return fileContents.size(); |
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} |
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public boolean offer(Env<AttrContext> e) { |
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if (fileContents.offer(e)) { |
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contents.add(e); |
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return true; |
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} |
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return false; |
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} |
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public Env<AttrContext> poll() { |
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if (fileContents.size() == 0) |
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return null; |
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Env<AttrContext> env = fileContents.remove(0); |
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contents.remove(env); |
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return env; |
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} |
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public Env<AttrContext> peek() { |
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return (fileContents.size() == 0 ? null : fileContents.get(0)); |
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} |
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169 |
|
74cc97efef51
6420151: need to improve byfile compile policy to eliminate footprint issues
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170 |
LinkedList<Env<AttrContext>> fileContents = new LinkedList<Env<AttrContext>>(); |
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171 |
} |
10 | 172 |
} |