зеркало из https://github.com/mozilla/gecko-dev.git
92 строки
3.2 KiB
Java
92 строки
3.2 KiB
Java
/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
|
|
*
|
|
* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is Mozilla Communicator client code, released
|
|
* March 31, 1998.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Netscape Communications Corporation.
|
|
* Portions created by the Initial Developer are Copyright (C) 1998
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Patrick C. Beard <beard@netscape.com>
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either the GNU General Public License Version 2 or later (the "GPL"), or
|
|
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
import java.util.*;
|
|
import java.io.*;
|
|
|
|
public class Reference {
|
|
int mAddress;
|
|
Type mType;
|
|
Object[] mReferences;
|
|
|
|
public Reference(String addr, Type type, Object[] refs) throws NumberFormatException {
|
|
mAddress = Integer.parseInt(addr.substring(2), 16);
|
|
mType = type;
|
|
mReferences = refs;
|
|
}
|
|
|
|
/**
|
|
* Tests whether ref is an interior pointer into this reference.
|
|
*/
|
|
public boolean contains(long address) {
|
|
return (mAddress <= address && address < (mAddress + mType.mSize));
|
|
}
|
|
|
|
/**
|
|
* Sorts in order of increasing addresses.
|
|
*/
|
|
public static class ByAddress extends QuickSort.Comparator {
|
|
public int compare(Object obj1, Object obj2) {
|
|
Reference r1 = (Reference) obj1, r2 = (Reference) obj2;
|
|
return (r1.mAddress - r2.mAddress);
|
|
}
|
|
}
|
|
|
|
public static Reference findNearest(Reference[] sortedRefs, int address) {
|
|
int length = sortedRefs.length;
|
|
int minIndex = 0, maxIndex = length - 1;
|
|
int index = maxIndex / 2;
|
|
while (minIndex <= maxIndex) {
|
|
Reference ref = sortedRefs[index];
|
|
if (address < ref.mAddress) {
|
|
maxIndex = (index - 1);
|
|
index = (minIndex + maxIndex) / 2;
|
|
} else {
|
|
if (address < (ref.mAddress + ref.mType.mSize)) {
|
|
return ref;
|
|
}
|
|
minIndex = (index + 1);
|
|
index = (minIndex + maxIndex) / 2;
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
}
|