62 lines
1.8 KiB
Java
62 lines
1.8 KiB
Java
/*
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ZZCursorVirtual.java
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*
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* Copyright (c) 2000, Ted Nelson and Tuomas Lukka
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*
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* You may use and distribute under the terms of either the GNU Lesser
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* General Public License, either version 2 of the license or,
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* at your choice, any later version. Alternatively, you may use and
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* distribute under the terms of the XPL.
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*
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* See the LICENSE.lgpl and LICENSE.xpl files for the specific terms of
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* the licenses.
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*
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* This software is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the README
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* file for more details.
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*
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*/
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/*
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* Written by Tuomas Lukka
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*/
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package org.gzigzag;
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import java.util.*;
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/** A virtual cursor.
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* Used by clang to optimize away some puts and gets, e.g. to postpone
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* setting the view cursor in the structure until the end of the routine.
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* XXX Clang definition needs to be VERY specific about what timings
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* are guaranteed in storing things to the structure.
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*/
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public class ZZCursorVirtual extends ZZCursor {
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String rcsid = "$Id: ZZCursorVirtual.java,v 1.7 2000/11/25 00:36:33 tjl Exp $";
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ZZCell val;
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int offs;
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public ZZCursorVirtual(ZZCell startVal) {
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val = startVal;
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offs = NO_OFFSET;
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}
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public ZZCursorVirtual(ZZCell startVal, int startOffset) {
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val = startVal;
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offs = startOffset;
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}
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public ZZCursorVirtual(ZZCursor curs) {
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val = curs.get();
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offs = curs.getOffs();
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}
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static public ZZCursorVirtual createFromReal(ZZCell curs) {
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return new ZZCursorVirtual(ZZCursorReal.get(curs),
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ZZCursorReal.getOffs(curs));
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}
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public ZZCell get() { return val; }
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public void set(ZZCell c) { val = c; }
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public int getOffs() { return offs; }
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public void setOffs(int i) { offs = i; }
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}
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