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<div class="title">identifier.cpp</div> </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> * This file is part of the KDE libraries</span>
<a name="l00003"></a>00003 <span class="comment"> * Copyright (C) 2003 Apple Computer, Inc</span>
<a name="l00004"></a>00004 <span class="comment"> *</span>
<a name="l00005"></a>00005 <span class="comment"> * This library is free software; you can redistribute it and/or</span>
<a name="l00006"></a>00006 <span class="comment"> * modify it under the terms of the GNU Library General Public</span>
<a name="l00007"></a>00007 <span class="comment"> * License as published by the Free Software Foundation; either</span>
<a name="l00008"></a>00008 <span class="comment"> * version 2 of the License, or (at your option) any later version.</span>
<a name="l00009"></a>00009 <span class="comment"> *</span>
<a name="l00010"></a>00010 <span class="comment"> * This library is distributed in the hope that it will be useful,</span>
<a name="l00011"></a>00011 <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00012"></a>00012 <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span>
<a name="l00013"></a>00013 <span class="comment"> * Library General Public License for more details.</span>
<a name="l00014"></a>00014 <span class="comment"> *</span>
<a name="l00015"></a>00015 <span class="comment"> * You should have received a copy of the GNU Library General Public License</span>
<a name="l00016"></a>00016 <span class="comment"> * along with this library; see the file COPYING.LIB. If not, write to</span>
<a name="l00017"></a>00017 <span class="comment"> * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,</span>
<a name="l00018"></a>00018 <span class="comment"> * Boston, MA 02110-1301, USA.</span>
<a name="l00019"></a>00019 <span class="comment"> *</span>
<a name="l00020"></a>00020 <span class="comment"> */</span>
<a name="l00021"></a>00021
<a name="l00022"></a>00022 <span class="preprocessor">#include "identifier.h"</span>
<a name="l00023"></a>00023
<a name="l00024"></a>00024 <span class="preprocessor">#include <stdio.h></span>
<a name="l00025"></a>00025 <span class="preprocessor">#include <stdlib.h></span>
<a name="l00026"></a>00026 <span class="preprocessor">#include <string.h></span>
<a name="l00027"></a>00027
<a name="l00028"></a>00028 <span class="preprocessor">#define DUMP_STATISTICS 0</span>
<a name="l00029"></a>00029 <span class="preprocessor"></span>
<a name="l00030"></a>00030 <span class="keyword">namespace </span>KJS {
<a name="l00031"></a>00031
<a name="l00032"></a>00032 <span class="preprocessor">#if DUMP_STATISTICS</span>
<a name="l00033"></a>00033 <span class="preprocessor"></span>
<a name="l00034"></a>00034 <span class="keyword">static</span> <span class="keywordtype">int</span> numProbes;
<a name="l00035"></a>00035 <span class="keyword">static</span> <span class="keywordtype">int</span> numCollisions;
<a name="l00036"></a>00036
<a name="l00037"></a>00037 <span class="keyword">struct </span>IdentifierStatisticsExitLogger { ~IdentifierStatisticsExitLogger(); };
<a name="l00038"></a>00038
<a name="l00039"></a>00039 <span class="keyword">static</span> IdentifierStatisticsExitLogger logger;
<a name="l00040"></a>00040
<a name="l00041"></a>00041 IdentifierStatisticsExitLogger::~IdentifierStatisticsExitLogger()
<a name="l00042"></a>00042 {
<a name="l00043"></a>00043 printf(<span class="stringliteral">"\nKJS::Identifier statistics\n\n"</span>);
<a name="l00044"></a>00044 printf(<span class="stringliteral">"%d probes\n"</span>, numProbes);
<a name="l00045"></a>00045 printf(<span class="stringliteral">"%d collisions (%.1f%%)\n"</span>, numCollisions, 100.0 * numCollisions / numProbes);
<a name="l00046"></a>00046 }
<a name="l00047"></a>00047
<a name="l00048"></a>00048 <span class="preprocessor">#endif</span>
<a name="l00049"></a>00049 <span class="preprocessor"></span>
<a name="l00050"></a>00050 <span class="keyword">extern</span> <span class="keyword">const</span> Identifier argumentsPropertyName(<span class="stringliteral">"arguments"</span>);
<a name="l00051"></a>00051 <span class="keyword">extern</span> <span class="keyword">const</span> Identifier calleePropertyName(<span class="stringliteral">"callee"</span>);
<a name="l00052"></a>00052 <span class="keyword">extern</span> <span class="keyword">const</span> Identifier callerPropertyName(<span class="stringliteral">"caller"</span>);
<a name="l00053"></a>00053 <span class="keyword">extern</span> <span class="keyword">const</span> Identifier constructorPropertyName(<span class="stringliteral">"constructor"</span>);
<a name="l00054"></a>00054 <span class="keyword">extern</span> <span class="keyword">const</span> Identifier lengthPropertyName(<span class="stringliteral">"length"</span>);
<a name="l00055"></a>00055 <span class="keyword">extern</span> <span class="keyword">const</span> Identifier messagePropertyName(<span class="stringliteral">"message"</span>);
<a name="l00056"></a>00056 <span class="keyword">extern</span> <span class="keyword">const</span> Identifier namePropertyName(<span class="stringliteral">"name"</span>);
<a name="l00057"></a>00057 <span class="keyword">extern</span> <span class="keyword">const</span> Identifier prototypePropertyName(<span class="stringliteral">"prototype"</span>);
<a name="l00058"></a>00058 <span class="keyword">extern</span> <span class="keyword">const</span> Identifier specialPrototypePropertyName(<span class="stringliteral">"__proto__"</span>);
<a name="l00059"></a>00059 <span class="keyword">extern</span> <span class="keyword">const</span> Identifier toLocaleStringPropertyName(<span class="stringliteral">"toLocaleString"</span>);
<a name="l00060"></a>00060 <span class="keyword">extern</span> <span class="keyword">const</span> Identifier toStringPropertyName(<span class="stringliteral">"toString"</span>);
<a name="l00061"></a>00061 <span class="keyword">extern</span> <span class="keyword">const</span> Identifier valueOfPropertyName(<span class="stringliteral">"valueOf"</span>);
<a name="l00062"></a>00062
<a name="l00063"></a>00063 <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> _minTableSize = 64;
<a name="l00064"></a>00064
<a name="l00065"></a>00065 UString::Rep **Identifier::_table;
<a name="l00066"></a>00066 <span class="keywordtype">int</span> Identifier::_tableSize;
<a name="l00067"></a>00067 <span class="keywordtype">int</span> Identifier::_tableSizeMask;
<a name="l00068"></a>00068 <span class="keywordtype">int</span> Identifier::_keyCount;
<a name="l00069"></a>00069
<a name="l00070"></a>00070 <span class="keywordtype">bool</span> Identifier::equal(UString::Rep *r, <span class="keyword">const</span> <span class="keywordtype">char</span> *s)
<a name="l00071"></a>00071 {
<a name="l00072"></a>00072 <span class="keywordtype">int</span> length = r->len;
<a name="l00073"></a>00073 <span class="keyword">const</span> UChar *d = r->data();
<a name="l00074"></a>00074 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i != length; ++i)
<a name="l00075"></a>00075 <span class="keywordflow">if</span> (d[i].uc != (<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>)s[i])
<a name="l00076"></a>00076 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00077"></a>00077 <span class="keywordflow">return</span> s[length] == 0;
<a name="l00078"></a>00078 }
<a name="l00079"></a>00079
<a name="l00080"></a>00080 <span class="keywordtype">bool</span> Identifier::equal(UString::Rep *r, <span class="keyword">const</span> UChar *s, <span class="keywordtype">int</span> length)
<a name="l00081"></a>00081 {
<a name="l00082"></a>00082 <span class="keywordflow">if</span> (r->len != length)
<a name="l00083"></a>00083 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00084"></a>00084 <span class="keyword">const</span> UChar *d = r->data();
<a name="l00085"></a>00085 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i != length; ++i)
<a name="l00086"></a>00086 <span class="keywordflow">if</span> (d[i].uc != s[i].uc)
<a name="l00087"></a>00087 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00088"></a>00088 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00089"></a>00089 }
<a name="l00090"></a>00090
<a name="l00091"></a>00091 <span class="keywordtype">bool</span> Identifier::equal(UString::Rep *r, UString::Rep *b)
<a name="l00092"></a>00092 {
<a name="l00093"></a>00093 <span class="keywordtype">int</span> length = r->len;
<a name="l00094"></a>00094 <span class="keywordflow">if</span> (length != b->len)
<a name="l00095"></a>00095 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00096"></a>00096 <span class="keyword">const</span> UChar *d = r->data();
<a name="l00097"></a>00097 <span class="keyword">const</span> UChar *s = b->data();
<a name="l00098"></a>00098 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i != length; ++i)
<a name="l00099"></a>00099 <span class="keywordflow">if</span> (d[i].uc != s[i].uc)
<a name="l00100"></a>00100 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00101"></a>00101 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00102"></a>00102 }
<a name="l00103"></a>00103
<a name="l00104"></a>00104 UString::Rep *Identifier::add(<span class="keyword">const</span> <span class="keywordtype">char</span> *c)
<a name="l00105"></a>00105 {
<a name="l00106"></a>00106 <span class="keywordflow">if</span> (!c)
<a name="l00107"></a>00107 <span class="keywordflow">return</span> &<a class="code" href="classKJS_1_1Identifier.html#a0c11c80ccfb32ebe3ef21445d308765f" title="Creates an empty Identifier.">UString::Rep::null</a>;
<a name="l00108"></a>00108 <span class="keywordtype">int</span> length = strlen(c);
<a name="l00109"></a>00109 <span class="keywordflow">if</span> (length == 0)
<a name="l00110"></a>00110 <span class="keywordflow">return</span> &UString::Rep::empty;
<a name="l00111"></a>00111
<a name="l00112"></a>00112 <span class="keywordflow">if</span> (!_table)
<a name="l00113"></a>00113 expand();
<a name="l00114"></a>00114
<a name="l00115"></a>00115 <span class="keywordtype">unsigned</span> hash = UString::Rep::computeHash(c);
<a name="l00116"></a>00116
<a name="l00117"></a>00117 <span class="keywordtype">int</span> i = hash & _tableSizeMask;
<a name="l00118"></a>00118 <span class="preprocessor">#if DUMP_STATISTICS</span>
<a name="l00119"></a>00119 <span class="preprocessor"></span> ++numProbes;
<a name="l00120"></a>00120 numCollisions += _table[i] && !equal(_table[i], c);
<a name="l00121"></a>00121 <span class="preprocessor">#endif</span>
<a name="l00122"></a>00122 <span class="preprocessor"></span> <span class="keywordflow">while</span> (UString::Rep *key = _table[i]) {
<a name="l00123"></a>00123 <span class="keywordflow">if</span> (equal(key, c))
<a name="l00124"></a>00124 <span class="keywordflow">return</span> <a class="codeRef" doxygen="kdecore.tag:../../kdecore/html/" href="../../kdecore/html/namespaceKStdAccel.html#acc12b2741ae01cac579a473d3e6bafce">key</a>;
<a name="l00125"></a>00125 i = (i + 1) & _tableSizeMask;
<a name="l00126"></a>00126 }
<a name="l00127"></a>00127
<a name="l00128"></a>00128 UChar *d = <span class="keyword">new</span> UChar[length];
<a name="l00129"></a>00129 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> j = 0; j != length; j++)
<a name="l00130"></a>00130 d[j] = c[j];
<a name="l00131"></a>00131
<a name="l00132"></a>00132 UString::Rep *r = <span class="keyword">new</span> UString::Rep;
<a name="l00133"></a>00133 r->dat = d;
<a name="l00134"></a>00134 r->len = length;
<a name="l00135"></a>00135 r->capacity = UString::Rep::capacityForIdentifier;
<a name="l00136"></a>00136 r->rc = 0;
<a name="l00137"></a>00137 r->_hash = hash;
<a name="l00138"></a>00138
<a name="l00139"></a>00139 _table[i] = r;
<a name="l00140"></a>00140 ++_keyCount;
<a name="l00141"></a>00141
<a name="l00142"></a>00142 <span class="keywordflow">if</span> (_keyCount * 2 >= _tableSize)
<a name="l00143"></a>00143 expand();
<a name="l00144"></a>00144
<a name="l00145"></a>00145 <span class="keywordflow">return</span> r;
<a name="l00146"></a>00146 }
<a name="l00147"></a>00147
<a name="l00148"></a>00148 UString::Rep *Identifier::add(<span class="keyword">const</span> UChar *s, <span class="keywordtype">int</span> length)
<a name="l00149"></a>00149 {
<a name="l00150"></a>00150 <span class="keywordflow">if</span> (length == 0)
<a name="l00151"></a>00151 <span class="keywordflow">return</span> &UString::Rep::empty;
<a name="l00152"></a>00152
<a name="l00153"></a>00153 <span class="keywordflow">if</span> (!_table)
<a name="l00154"></a>00154 expand();
<a name="l00155"></a>00155
<a name="l00156"></a>00156 <span class="keywordtype">unsigned</span> hash = UString::Rep::computeHash(s, length);
<a name="l00157"></a>00157
<a name="l00158"></a>00158 <span class="keywordtype">int</span> i = hash & _tableSizeMask;
<a name="l00159"></a>00159 <span class="preprocessor">#if DUMP_STATISTICS</span>
<a name="l00160"></a>00160 <span class="preprocessor"></span> ++numProbes;
<a name="l00161"></a>00161 numCollisions += _table[i] && !equal(_table[i], s, length);
<a name="l00162"></a>00162 <span class="preprocessor">#endif</span>
<a name="l00163"></a>00163 <span class="preprocessor"></span> <span class="keywordflow">while</span> (UString::Rep *key = _table[i]) {
<a name="l00164"></a>00164 <span class="keywordflow">if</span> (equal(key, s, length))
<a name="l00165"></a>00165 <span class="keywordflow">return</span> <a class="codeRef" doxygen="kdecore.tag:../../kdecore/html/" href="../../kdecore/html/namespaceKStdAccel.html#acc12b2741ae01cac579a473d3e6bafce">key</a>;
<a name="l00166"></a>00166 i = (i + 1) & _tableSizeMask;
<a name="l00167"></a>00167 }
<a name="l00168"></a>00168
<a name="l00169"></a>00169 UChar *d = <span class="keyword">new</span> UChar[length];
<a name="l00170"></a>00170 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> j = 0; j != length; j++)
<a name="l00171"></a>00171 d[j] = s[j];
<a name="l00172"></a>00172
<a name="l00173"></a>00173 UString::Rep *r = <span class="keyword">new</span> UString::Rep;
<a name="l00174"></a>00174 r->dat = d;
<a name="l00175"></a>00175 r->len = length;
<a name="l00176"></a>00176 r->capacity = UString::Rep::capacityForIdentifier;
<a name="l00177"></a>00177 r->rc = 0;
<a name="l00178"></a>00178 r->_hash = hash;
<a name="l00179"></a>00179
<a name="l00180"></a>00180 _table[i] = r;
<a name="l00181"></a>00181 ++_keyCount;
<a name="l00182"></a>00182
<a name="l00183"></a>00183 <span class="keywordflow">if</span> (_keyCount * 2 >= _tableSize)
<a name="l00184"></a>00184 expand();
<a name="l00185"></a>00185
<a name="l00186"></a>00186 <span class="keywordflow">return</span> r;
<a name="l00187"></a>00187 }
<a name="l00188"></a>00188
<a name="l00189"></a>00189 UString::Rep *Identifier::add(UString::Rep *r)
<a name="l00190"></a>00190 {
<a name="l00191"></a>00191 <span class="keywordflow">if</span> (r->capacity == UString::Rep::capacityForIdentifier)
<a name="l00192"></a>00192 <span class="keywordflow">return</span> r;
<a name="l00193"></a>00193 <span class="keywordflow">if</span> (r->len == 0)
<a name="l00194"></a>00194 <span class="keywordflow">return</span> &UString::Rep::empty;
<a name="l00195"></a>00195
<a name="l00196"></a>00196 <span class="keywordflow">if</span> (!_table)
<a name="l00197"></a>00197 expand();
<a name="l00198"></a>00198
<a name="l00199"></a>00199 <span class="keywordtype">unsigned</span> hash = r->hash();
<a name="l00200"></a>00200
<a name="l00201"></a>00201 <span class="keywordtype">int</span> i = hash & _tableSizeMask;
<a name="l00202"></a>00202 <span class="preprocessor">#if DUMP_STATISTICS</span>
<a name="l00203"></a>00203 <span class="preprocessor"></span> ++numProbes;
<a name="l00204"></a>00204 numCollisions += _table[i] && !equal(_table[i], r);
<a name="l00205"></a>00205 <span class="preprocessor">#endif</span>
<a name="l00206"></a>00206 <span class="preprocessor"></span> <span class="keywordflow">while</span> (UString::Rep *key = _table[i]) {
<a name="l00207"></a>00207 <span class="keywordflow">if</span> (equal(key, r))
<a name="l00208"></a>00208 <span class="keywordflow">return</span> <a class="codeRef" doxygen="kdecore.tag:../../kdecore/html/" href="../../kdecore/html/namespaceKStdAccel.html#acc12b2741ae01cac579a473d3e6bafce">key</a>;
<a name="l00209"></a>00209 i = (i + 1) & _tableSizeMask;
<a name="l00210"></a>00210 }
<a name="l00211"></a>00211
<a name="l00212"></a>00212 r->capacity = UString::Rep::capacityForIdentifier;
<a name="l00213"></a>00213
<a name="l00214"></a>00214 _table[i] = r;
<a name="l00215"></a>00215 ++_keyCount;
<a name="l00216"></a>00216
<a name="l00217"></a>00217 <span class="keywordflow">if</span> (_keyCount * 2 >= _tableSize)
<a name="l00218"></a>00218 expand();
<a name="l00219"></a>00219
<a name="l00220"></a>00220 <span class="keywordflow">return</span> r;
<a name="l00221"></a>00221 }
<a name="l00222"></a>00222
<a name="l00223"></a>00223 <span class="keyword">inline</span> <span class="keywordtype">void</span> Identifier::insert(UString::Rep *key)
<a name="l00224"></a>00224 {
<a name="l00225"></a>00225 <span class="keywordtype">unsigned</span> hash = key->hash();
<a name="l00226"></a>00226
<a name="l00227"></a>00227 <span class="keywordtype">int</span> i = hash & _tableSizeMask;
<a name="l00228"></a>00228 <span class="preprocessor">#if DUMP_STATISTICS</span>
<a name="l00229"></a>00229 <span class="preprocessor"></span> ++numProbes;
<a name="l00230"></a>00230 numCollisions += _table[i] != 0;
<a name="l00231"></a>00231 <span class="preprocessor">#endif</span>
<a name="l00232"></a>00232 <span class="preprocessor"></span> <span class="keywordflow">while</span> (_table[i])
<a name="l00233"></a>00233 i = (i + 1) & _tableSizeMask;
<a name="l00234"></a>00234
<a name="l00235"></a>00235 _table[i] = key;
<a name="l00236"></a>00236 }
<a name="l00237"></a>00237
<a name="l00238"></a>00238 <span class="keywordtype">void</span> Identifier::remove(UString::Rep *r)
<a name="l00239"></a>00239 {
<a name="l00240"></a>00240 <span class="keywordtype">unsigned</span> hash = r->hash();
<a name="l00241"></a>00241
<a name="l00242"></a>00242 UString::Rep *key;
<a name="l00243"></a>00243
<a name="l00244"></a>00244 <span class="keywordtype">int</span> i = hash & _tableSizeMask;
<a name="l00245"></a>00245 <span class="preprocessor">#if DUMP_STATISTICS</span>
<a name="l00246"></a>00246 <span class="preprocessor"></span> ++numProbes;
<a name="l00247"></a>00247 numCollisions += _table[i] && equal(_table[i], r);
<a name="l00248"></a>00248 <span class="preprocessor">#endif</span>
<a name="l00249"></a>00249 <span class="preprocessor"></span> <span class="keywordflow">while</span> ((key = _table[i])) {
<a name="l00250"></a>00250 <span class="keywordflow">if</span> (equal(key, r))
<a name="l00251"></a>00251 <span class="keywordflow">break</span>;
<a name="l00252"></a>00252 i = (i + 1) & _tableSizeMask;
<a name="l00253"></a>00253 }
<a name="l00254"></a>00254 <span class="keywordflow">if</span> (!key)
<a name="l00255"></a>00255 <span class="keywordflow">return</span>;
<a name="l00256"></a>00256
<a name="l00257"></a>00257 _table[i] = 0;
<a name="l00258"></a>00258 --_keyCount;
<a name="l00259"></a>00259
<a name="l00260"></a>00260 <span class="keywordflow">if</span> (_keyCount * 6 < _tableSize && _tableSize > _minTableSize) {
<a name="l00261"></a>00261 shrink();
<a name="l00262"></a>00262 <span class="keywordflow">return</span>;
<a name="l00263"></a>00263 }
<a name="l00264"></a>00264
<a name="l00265"></a>00265 <span class="comment">// Reinsert all the items to the right in the same cluster.</span>
<a name="l00266"></a>00266 <span class="keywordflow">while</span> (1) {
<a name="l00267"></a>00267 i = (i + 1) & _tableSizeMask;
<a name="l00268"></a>00268 key = _table[i];
<a name="l00269"></a>00269 <span class="keywordflow">if</span> (!key)
<a name="l00270"></a>00270 <span class="keywordflow">break</span>;
<a name="l00271"></a>00271 _table[i] = 0;
<a name="l00272"></a>00272 insert(key);
<a name="l00273"></a>00273 }
<a name="l00274"></a>00274 }
<a name="l00275"></a>00275
<a name="l00276"></a>00276 <span class="keywordtype">void</span> Identifier::expand()
<a name="l00277"></a>00277 {
<a name="l00278"></a>00278 rehash(_tableSize == 0 ? _minTableSize : _tableSize * 2);
<a name="l00279"></a>00279 }
<a name="l00280"></a>00280
<a name="l00281"></a>00281 <span class="keywordtype">void</span> Identifier::shrink()
<a name="l00282"></a>00282 {
<a name="l00283"></a>00283 rehash(_tableSize / 2);
<a name="l00284"></a>00284 }
<a name="l00285"></a>00285
<a name="l00286"></a>00286 <span class="keywordtype">void</span> Identifier::rehash(<span class="keywordtype">int</span> newTableSize)
<a name="l00287"></a>00287 {
<a name="l00288"></a>00288 <span class="keywordtype">int</span> oldTableSize = _tableSize;
<a name="l00289"></a>00289 UString::Rep **oldTable = _table;
<a name="l00290"></a>00290
<a name="l00291"></a>00291 _tableSize = newTableSize;
<a name="l00292"></a>00292 _tableSizeMask = newTableSize - 1;
<a name="l00293"></a>00293 _table = (UString::Rep **)calloc(newTableSize, <span class="keyword">sizeof</span>(UString::Rep *));
<a name="l00294"></a>00294
<a name="l00295"></a>00295 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i != oldTableSize; ++i)
<a name="l00296"></a>00296 <span class="keywordflow">if</span> (UString::Rep *key = oldTable[i])
<a name="l00297"></a>00297 insert(key);
<a name="l00298"></a>00298
<a name="l00299"></a>00299 free(oldTable);
<a name="l00300"></a>00300 }
<a name="l00301"></a>00301
<a name="l00302"></a><a class="code" href="classKJS_1_1Identifier.html#a0c11c80ccfb32ebe3ef21445d308765f">00302</a> <span class="keyword">const</span> <a class="code" href="classKJS_1_1Identifier.html" title="Represents an Identifier for a Javascript object.">Identifier</a> &<a class="code" href="classKJS_1_1Identifier.html#a0c11c80ccfb32ebe3ef21445d308765f" title="Creates an empty Identifier.">Identifier::null</a>()
<a name="l00303"></a>00303 {
<a name="l00304"></a>00304 <span class="keyword">static</span> <a class="code" href="classKJS_1_1Identifier.html" title="Represents an Identifier for a Javascript object.">Identifier</a> <a class="code" href="classKJS_1_1Identifier.html#a0c11c80ccfb32ebe3ef21445d308765f" title="Creates an empty Identifier.">null</a>;
<a name="l00305"></a>00305 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Identifier.html#a0c11c80ccfb32ebe3ef21445d308765f" title="Creates an empty Identifier.">null</a>;
<a name="l00306"></a>00306 }
<a name="l00307"></a>00307
<a name="l00308"></a>00308 } <span class="comment">// namespace KJS</span>
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