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<div class="title">nodes.cpp</div> </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// -*- c-basic-offset: 2 -*-</span>
<a name="l00002"></a>00002 <span class="comment">/*</span>
<a name="l00003"></a>00003 <span class="comment"> * This file is part of the KDE libraries</span>
<a name="l00004"></a>00004 <span class="comment"> * Copyright (C) 1999-2002, 2003 Harri Porten (porten@kde.org)</span>
<a name="l00005"></a>00005 <span class="comment"> * Copyright (C) 2001 Peter Kelly (pmk@post.com)</span>
<a name="l00006"></a>00006 <span class="comment"> * Copyright (C) 2003 Apple Computer, Inc.</span>
<a name="l00007"></a>00007 <span class="comment"> *</span>
<a name="l00008"></a>00008 <span class="comment"> * This library is free software; you can redistribute it and/or</span>
<a name="l00009"></a>00009 <span class="comment"> * modify it under the terms of the GNU Library General Public</span>
<a name="l00010"></a>00010 <span class="comment"> * License as published by the Free Software Foundation; either</span>
<a name="l00011"></a>00011 <span class="comment"> * version 2 of the License, or (at your option) any later version.</span>
<a name="l00012"></a>00012 <span class="comment"> *</span>
<a name="l00013"></a>00013 <span class="comment"> * This library is distributed in the hope that it will be useful,</span>
<a name="l00014"></a>00014 <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00015"></a>00015 <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span>
<a name="l00016"></a>00016 <span class="comment"> * Library General Public License for more details.</span>
<a name="l00017"></a>00017 <span class="comment"> *</span>
<a name="l00018"></a>00018 <span class="comment"> * You should have received a copy of the GNU Library General Public License</span>
<a name="l00019"></a>00019 <span class="comment"> * along with this library; see the file COPYING.LIB. If not, write to</span>
<a name="l00020"></a>00020 <span class="comment"> * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,</span>
<a name="l00021"></a>00021 <span class="comment"> * Boston, MA 02110-1301, USA.</span>
<a name="l00022"></a>00022 <span class="comment"> *</span>
<a name="l00023"></a>00023 <span class="comment"> */</span>
<a name="l00024"></a>00024
<a name="l00025"></a>00025 <span class="preprocessor">#include "nodes.h"</span>
<a name="l00026"></a>00026
<a name="l00027"></a>00027 <span class="preprocessor">#include <math.h></span>
<a name="l00028"></a>00028 <span class="preprocessor">#include <assert.h></span>
<a name="l00029"></a>00029 <span class="preprocessor">#ifdef KJS_DEBUG_MEM</span>
<a name="l00030"></a>00030 <span class="preprocessor"></span><span class="preprocessor">#include <stdio.h></span>
<a name="l00031"></a>00031 <span class="preprocessor">#include <typeinfo></span>
<a name="l00032"></a>00032 <span class="preprocessor">#endif</span>
<a name="l00033"></a>00033 <span class="preprocessor"></span><span class="preprocessor">#ifdef KJS_VERBOSE</span>
<a name="l00034"></a>00034 <span class="preprocessor"></span><span class="preprocessor">#include <iostream></span>
<a name="l00035"></a>00035 <span class="keyword">using namespace </span>std;
<a name="l00036"></a>00036 <span class="preprocessor">#endif</span>
<a name="l00037"></a>00037 <span class="preprocessor"></span>
<a name="l00038"></a>00038 <span class="preprocessor">#include "collector.h"</span>
<a name="l00039"></a>00039 <span class="preprocessor">#include "context.h"</span>
<a name="l00040"></a>00040 <span class="preprocessor">#include "debugger.h"</span>
<a name="l00041"></a>00041 <span class="preprocessor">#include "function_object.h"</span>
<a name="l00042"></a>00042 <span class="preprocessor">#include "internal.h"</span>
<a name="l00043"></a>00043 <span class="preprocessor">#include "value.h"</span>
<a name="l00044"></a>00044 <span class="preprocessor">#include "object.h"</span>
<a name="l00045"></a>00045 <span class="preprocessor">#include "types.h"</span>
<a name="l00046"></a>00046 <span class="preprocessor">#include "interpreter.h"</span>
<a name="l00047"></a>00047 <span class="preprocessor">#include "lexer.h"</span>
<a name="l00048"></a>00048 <span class="preprocessor">#include "operations.h"</span>
<a name="l00049"></a>00049 <span class="preprocessor">#include "ustring.h"</span>
<a name="l00050"></a>00050
<a name="l00051"></a>00051 <span class="keyword">using namespace </span>KJS;
<a name="l00052"></a>00052
<a name="l00053"></a>00053 <span class="preprocessor">#define KJS_BREAKPOINT \</span>
<a name="l00054"></a>00054 <span class="preprocessor"> if (!hitStatement(exec)) \</span>
<a name="l00055"></a>00055 <span class="preprocessor"> return Completion(Normal);</span>
<a name="l00056"></a>00056 <span class="preprocessor"></span>
<a name="l00057"></a>00057 <span class="preprocessor">#define KJS_ABORTPOINT \</span>
<a name="l00058"></a>00058 <span class="preprocessor"> if (exec->dynamicInterpreter()->imp()->debugger() && \</span>
<a name="l00059"></a>00059 <span class="preprocessor"> exec->dynamicInterpreter()->imp()->debugger()->imp()->aborted()) \</span>
<a name="l00060"></a>00060 <span class="preprocessor"> return Completion(Normal);</span>
<a name="l00061"></a>00061 <span class="preprocessor"></span>
<a name="l00062"></a>00062 <span class="preprocessor">#define KJS_CHECKEXCEPTION \</span>
<a name="l00063"></a>00063 <span class="preprocessor"> if (exec->hadException()) { \</span>
<a name="l00064"></a>00064 <span class="preprocessor"> setExceptionDetailsIfNeeded(exec); \</span>
<a name="l00065"></a>00065 <span class="preprocessor"> return Completion(Throw, exec->exception()); \</span>
<a name="l00066"></a>00066 <span class="preprocessor"> } \</span>
<a name="l00067"></a>00067 <span class="preprocessor"> if (Collector::outOfMemory()) \</span>
<a name="l00068"></a>00068 <span class="preprocessor"> return Completion(Throw, Error::create(exec,GeneralError,"Out of memory"));</span>
<a name="l00069"></a>00069 <span class="preprocessor"></span>
<a name="l00070"></a>00070 <span class="preprocessor">#define KJS_CHECKEXCEPTIONVALUE \</span>
<a name="l00071"></a>00071 <span class="preprocessor"> if (exec->hadException()) { \</span>
<a name="l00072"></a>00072 <span class="preprocessor"> setExceptionDetailsIfNeeded(exec); \</span>
<a name="l00073"></a>00073 <span class="preprocessor"> return exec->exception(); \</span>
<a name="l00074"></a>00074 <span class="preprocessor"> } \</span>
<a name="l00075"></a>00075 <span class="preprocessor"> if (Collector::outOfMemory()) \</span>
<a name="l00076"></a>00076 <span class="preprocessor"> return Undefined(); // will be picked up by KJS_CHECKEXCEPTION</span>
<a name="l00077"></a>00077 <span class="preprocessor"></span>
<a name="l00078"></a>00078 <span class="preprocessor">#define KJS_CHECKEXCEPTIONREFERENCE \</span>
<a name="l00079"></a>00079 <span class="preprocessor"> if (exec->hadException()) { \</span>
<a name="l00080"></a>00080 <span class="preprocessor"> setExceptionDetailsIfNeeded(exec); \</span>
<a name="l00081"></a>00081 <span class="preprocessor"> return Reference::makeValueReference(Undefined()); \</span>
<a name="l00082"></a>00082 <span class="preprocessor"> } \</span>
<a name="l00083"></a>00083 <span class="preprocessor"> if (Collector::outOfMemory()) \</span>
<a name="l00084"></a>00084 <span class="preprocessor"> return Reference::makeValueReference(Undefined()); // will be picked up by KJS_CHECKEXCEPTION</span>
<a name="l00085"></a>00085 <span class="preprocessor"></span>
<a name="l00086"></a>00086 <span class="preprocessor">#define KJS_CHECKEXCEPTIONLIST \</span>
<a name="l00087"></a>00087 <span class="preprocessor"> if (exec->hadException()) { \</span>
<a name="l00088"></a>00088 <span class="preprocessor"> setExceptionDetailsIfNeeded(exec); \</span>
<a name="l00089"></a>00089 <span class="preprocessor"> return List(); \</span>
<a name="l00090"></a>00090 <span class="preprocessor"> } \</span>
<a name="l00091"></a>00091 <span class="preprocessor"> if (Collector::outOfMemory()) \</span>
<a name="l00092"></a>00092 <span class="preprocessor"> return List(); // will be picked up by KJS_CHECKEXCEPTION</span>
<a name="l00093"></a>00093 <span class="preprocessor"></span>
<a name="l00094"></a>00094 <span class="preprocessor">#ifdef KJS_DEBUG_MEM</span>
<a name="l00095"></a>00095 <span class="preprocessor"></span>std::list<Node *> * Node::s_nodes = 0L;
<a name="l00096"></a>00096 <span class="preprocessor">#endif</span>
<a name="l00097"></a>00097 <span class="preprocessor"></span>
<a name="l00098"></a>00098 <span class="comment">// ----------------------------- Node -----------------------------------------</span>
<a name="l00099"></a>00099
<a name="l00100"></a>00100 Node::Node()
<a name="l00101"></a>00101 {
<a name="l00102"></a>00102 line = Lexer::curr()->lineNo();
<a name="l00103"></a>00103 refcount = 0;
<a name="l00104"></a>00104 <span class="preprocessor">#ifdef KJS_DEBUG_MEM</span>
<a name="l00105"></a>00105 <span class="preprocessor"></span> <span class="keywordflow">if</span> (!s_nodes)
<a name="l00106"></a>00106 s_nodes = <span class="keyword">new</span> std::list<Node *>;
<a name="l00107"></a>00107 s_nodes->push_back(<span class="keyword">this</span>);
<a name="l00108"></a>00108 <span class="preprocessor">#endif</span>
<a name="l00109"></a>00109 <span class="preprocessor"></span>}
<a name="l00110"></a>00110
<a name="l00111"></a>00111 Node::~Node()
<a name="l00112"></a>00112 {
<a name="l00113"></a>00113 <span class="preprocessor">#ifdef KJS_DEBUG_MEM</span>
<a name="l00114"></a>00114 <span class="preprocessor"></span> s_nodes->remove( <span class="keyword">this</span> );
<a name="l00115"></a>00115 <span class="preprocessor">#endif</span>
<a name="l00116"></a>00116 <span class="preprocessor"></span>}
<a name="l00117"></a>00117
<a name="l00118"></a>00118 <a class="code" href="classKJS_1_1Reference.html" title="Defines a Javascript reference.">Reference</a> Node::evaluateReference(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l00119"></a>00119 <span class="keyword"></span>{
<a name="l00120"></a>00120 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v = evaluate(exec);
<a name="l00121"></a>00121 KJS_CHECKEXCEPTIONREFERENCE
<a name="l00122"></a>00122 <span class="keywordflow">return</span> Reference::makeValueReference(v);
<a name="l00123"></a>00123 }
<a name="l00124"></a>00124
<a name="l00125"></a>00125 <span class="comment">// fallback for those nodes without a evaluate() reimplementation</span>
<a name="l00126"></a>00126 <span class="comment">// TODO: reimplemint in each sub class, make Node::evaluate() pure virtual</span>
<a name="l00127"></a>00127 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> Node::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l00128"></a>00128 <span class="keyword"></span>{
<a name="l00129"></a>00129 <span class="comment">// fprintf(stderr, "%s::evaluate()\n", typeid(*this).name());</span>
<a name="l00130"></a>00130 <span class="keywordflow">return</span> evaluateReference(exec).getValue(exec);
<a name="l00131"></a>00131 }
<a name="l00132"></a>00132
<a name="l00133"></a>00133 <span class="keywordtype">bool</span> Node::toBoolean(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l00134"></a>00134 <span class="keyword"></span>{
<a name="l00135"></a>00135 <span class="comment">// fprintf(stderr, "Node(%s)::toBoolean()\n", typeid(*this).name());</span>
<a name="l00136"></a>00136 <span class="keywordflow">return</span> evaluate(exec).<a class="code" href="classKJS_1_1Value.html#abdcb3fc1afee9326af85eec35592f0b8" title="Performs the ToBoolean type conversion operation on this value (ECMA 9.2)">toBoolean</a>(exec);
<a name="l00137"></a>00137 }
<a name="l00138"></a>00138
<a name="l00139"></a>00139 <span class="keywordtype">double</span> Node::toNumber(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l00140"></a>00140 <span class="keyword"></span>{
<a name="l00141"></a>00141 <span class="comment">// fprintf(stderr, "Node(%s)::toNumber()\n", typeid(*this).name());</span>
<a name="l00142"></a>00142 <span class="keywordflow">return</span> evaluate(exec).toNumber(exec);
<a name="l00143"></a>00143 }
<a name="l00144"></a>00144
<a name="l00145"></a>00145 <a class="code" href="classKJS_1_1UString.html" title="Unicode string class.">UString</a> Node::toString(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l00146"></a>00146 <span class="keyword"></span>{
<a name="l00147"></a>00147 <span class="keywordflow">return</span> evaluate(exec).toString(exec);
<a name="l00148"></a>00148 }
<a name="l00149"></a>00149
<a name="l00150"></a>00150 <span class="preprocessor">#ifdef KJS_DEBUG_MEM</span>
<a name="l00151"></a>00151 <span class="preprocessor"></span><span class="keywordtype">void</span> Node::finalCheck()
<a name="l00152"></a>00152 {
<a name="l00153"></a>00153 <span class="keywordflow">if</span> (!s_nodes) {
<a name="l00154"></a>00154 fprintf(stderr, <span class="stringliteral">"Node::finalCheck(): list 0\n"</span>);
<a name="l00155"></a>00155 <span class="keywordflow">return</span>;
<a name="l00156"></a>00156 }
<a name="l00157"></a>00157 fprintf( stderr, <span class="stringliteral">"Node::finalCheck(): list count : %d\n"</span>, (<span class="keywordtype">int</span>)s_nodes->size() );
<a name="l00158"></a>00158 std::list<Node *>::iterator it = s_nodes->begin();
<a name="l00159"></a>00159 <span class="keywordflow">for</span> ( uint i = 0; it != s_nodes->end() ; ++it, ++i )
<a name="l00160"></a>00160 fprintf( stderr, <span class="stringliteral">"[%d] Still having node %p (%s) (refcount %d)\n"</span>, i, (<span class="keywordtype">void</span>*)*it, <span class="keyword">typeid</span>( **it ).name(), (*it)->refcount );
<a name="l00161"></a>00161 <span class="keyword">delete</span> s_nodes;
<a name="l00162"></a>00162 s_nodes = 0L;
<a name="l00163"></a>00163 }
<a name="l00164"></a>00164 <span class="preprocessor">#endif</span>
<a name="l00165"></a>00165 <span class="preprocessor"></span>
<a name="l00166"></a>00166 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> Node::throwError(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec, ErrorType e, <span class="keyword">const</span> <span class="keywordtype">char</span> *msg)<span class="keyword"> const</span>
<a name="l00167"></a>00167 <span class="keyword"></span>{
<a name="l00168"></a>00168 <a class="code" href="classKJS_1_1Object.html" title="Represents an Object.">Object</a> err = Error::create(exec, e, msg, lineNo(), sourceId());
<a name="l00169"></a>00169 exec->setException(err);
<a name="l00170"></a>00170 <span class="keywordflow">return</span> err;
<a name="l00171"></a>00171 }
<a name="l00172"></a>00172
<a name="l00173"></a>00173 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> Node::throwError(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec, ErrorType e, <span class="keyword">const</span> <span class="keywordtype">char</span> *msg,
<a name="l00174"></a>00174 <span class="keyword">const</span> <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> &v, <span class="keyword">const</span> Node *expr)<span class="keyword"> const</span>
<a name="l00175"></a>00175 <span class="keyword"></span>{
<a name="l00176"></a>00176 <span class="keywordtype">char</span> *vStr = strdup(v.<a class="code" href="classKJS_1_1Value.html#a8611b80d868cebf8dd4af2f966810874" title="Performs the ToString type conversion operation on this value (ECMA 9.8)">toString</a>(exec).<a class="code" href="classKJS_1_1UString.html#a2ac3d2b62d65d075f2d99bf7ed2ec366" title="Convert the Unicode string to plain ASCII chars chopping of any higher bytes.">ascii</a>());
<a name="l00177"></a>00177 <span class="keywordtype">char</span> *exprStr = strdup(expr->toCode().ascii());
<a name="l00178"></a>00178
<a name="l00179"></a>00179 <span class="keywordtype">int</span> length = strlen(msg) - 4 <span class="comment">/* two %s */</span> + strlen(vStr) + strlen(exprStr) + 1 <span class="comment">/* null terminator */</span>;
<a name="l00180"></a>00180 <span class="keywordtype">char</span> *str = <span class="keyword">new</span> <span class="keywordtype">char</span>[length];
<a name="l00181"></a>00181 sprintf(str, msg, vStr, exprStr);
<a name="l00182"></a>00182 free(vStr);
<a name="l00183"></a>00183 free(exprStr);
<a name="l00184"></a>00184
<a name="l00185"></a>00185 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> result = throwError(exec, e, str);
<a name="l00186"></a>00186 <span class="keyword">delete</span> [] str;
<a name="l00187"></a>00187
<a name="l00188"></a>00188 <span class="keywordflow">return</span> result;
<a name="l00189"></a>00189 }
<a name="l00190"></a>00190
<a name="l00191"></a>00191 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> Node::throwError(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec, ErrorType e, <span class="keyword">const</span> <span class="keywordtype">char</span> *msg, <a class="code" href="classKJS_1_1Identifier.html" title="Represents an Identifier for a Javascript object.">Identifier</a> label)<span class="keyword"> const</span>
<a name="l00192"></a>00192 <span class="keyword"></span>{
<a name="l00193"></a>00193 <span class="keyword">const</span> <span class="keywordtype">char</span> *l = label.<a class="code" href="classKJS_1_1Identifier.html#a7b4e6ccacac5cae4e55412904541c8ba" title="Char * of the identifier's string.">ascii</a>();
<a name="l00194"></a>00194 <span class="keywordtype">int</span> length = strlen(msg) - 2 <span class="comment">/* %s */</span> + strlen(l) + 1 <span class="comment">/* null terminator */</span>;
<a name="l00195"></a>00195 <span class="keywordtype">char</span> *message = <span class="keyword">new</span> <span class="keywordtype">char</span>[length];
<a name="l00196"></a>00196 sprintf(message, msg, l);
<a name="l00197"></a>00197
<a name="l00198"></a>00198 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> result = throwError(exec, e, message);
<a name="l00199"></a>00199 <span class="keyword">delete</span> [] message;
<a name="l00200"></a>00200
<a name="l00201"></a>00201 <span class="keywordflow">return</span> result;
<a name="l00202"></a>00202 }
<a name="l00203"></a>00203
<a name="l00204"></a>00204
<a name="l00205"></a>00205 <span class="keywordtype">void</span> Node::setExceptionDetailsIfNeeded(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l00206"></a>00206 <span class="keyword"></span>{
<a name="l00207"></a>00207 <span class="keywordflow">if</span> (exec->hadException()) {
<a name="l00208"></a>00208 <a class="code" href="classKJS_1_1Object.html" title="Represents an Object.">Object</a> exception = exec->exception().<a class="code" href="classKJS_1_1Value.html#a072d956ce72fd1387bacb27dc466239d" title="Performs the ToObject type conversion operation on this value (ECMA 9.9)">toObject</a>(exec);
<a name="l00209"></a>00209 <span class="keywordflow">if</span> (!exception.<a class="code" href="classKJS_1_1Object.html#a8c0f1def86d09e32d8df1e27c3201922" title="Checks to see whether the object (or any object in it's prototype chain) has a property with the spec...">hasProperty</a>(exec, <span class="stringliteral">"line"</span>) <span class="comment">/* &&</span>
<a name="l00210"></a>00210 <span class="comment"> !exception.hasProperty(exec, "sourceURL")*/</span> ) {
<a name="l00211"></a>00211 exception.<a class="code" href="classKJS_1_1Object.html#aa67ec5ebaa19921db0fec1688378da2e" title="Sets the specified property.">put</a>(exec, <span class="stringliteral">"line"</span>, <a class="code" href="classKJS_1_1Number.html" title="Represents an primitive Number value.">Number</a>(line));
<a name="l00212"></a>00212 <span class="comment">// exception.put(exec, "sourceURL", String(sourceURL));</span>
<a name="l00213"></a>00213 }
<a name="l00214"></a>00214 }
<a name="l00215"></a>00215 }
<a name="l00216"></a>00216
<a name="l00217"></a>00217 <span class="comment">// ----------------------------- StatementNode --------------------------------</span>
<a name="l00218"></a>00218 StatementNode::StatementNode() : l0(-1), l1(-1), sourceCode(0), breakPoint(false)
<a name="l00219"></a>00219 {
<a name="l00220"></a>00220 }
<a name="l00221"></a>00221
<a name="l00222"></a>00222 StatementNode::~StatementNode()
<a name="l00223"></a>00223 {
<a name="l00224"></a>00224 <span class="keywordflow">if</span> (sourceCode)
<a name="l00225"></a>00225 sourceCode->deref();
<a name="l00226"></a>00226 }
<a name="l00227"></a>00227
<a name="l00228"></a>00228 <span class="keywordtype">void</span> StatementNode::setLoc(<span class="keywordtype">int</span> line0, <span class="keywordtype">int</span> line1, SourceCode *src)
<a name="l00229"></a>00229 {
<a name="l00230"></a>00230 <span class="comment">// ### require these to be passed to the constructor</span>
<a name="l00231"></a>00231 l0 = line0;
<a name="l00232"></a>00232 l1 = line1;
<a name="l00233"></a>00233 <span class="keywordflow">if</span> (sourceCode != src) {
<a name="l00234"></a>00234 <span class="keywordflow">if</span> (sourceCode)
<a name="l00235"></a>00235 sourceCode->deref();
<a name="l00236"></a>00236 sourceCode = src;
<a name="l00237"></a>00237 sourceCode->ref();
<a name="l00238"></a>00238 }
<a name="l00239"></a>00239 }
<a name="l00240"></a>00240
<a name="l00241"></a>00241 <span class="comment">// return true if the debugger wants us to stop at this point</span>
<a name="l00242"></a>00242 <span class="keywordtype">bool</span> StatementNode::hitStatement(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l00243"></a>00243 {
<a name="l00244"></a>00244 assert(sourceCode);
<a name="l00245"></a>00245 assert(exec-><a class="code" href="classKJS_1_1ExecState.html#aa2835385776b40626e4cf06887c0550e" title="Returns the execution context associated with this execution state.">context</a>().imp()->sourceId == sourceCode->sid);
<a name="l00246"></a>00246 exec-><a class="code" href="classKJS_1_1ExecState.html#aa2835385776b40626e4cf06887c0550e" title="Returns the execution context associated with this execution state.">context</a>().imp()->setLines(l0,l1);
<a name="l00247"></a>00247 Debugger *dbg = exec-><a class="code" href="classKJS_1_1ExecState.html#a3b3a2b4b312b33a64beeb974c948201c" title="Returns the interpreter associated with this execution state.">dynamicInterpreter</a>()->imp()->debugger();
<a name="l00248"></a>00248 <span class="keywordflow">if</span> (dbg)
<a name="l00249"></a>00249 <span class="keywordflow">return</span> dbg->atStatement(exec);
<a name="l00250"></a>00250 <span class="keywordflow">else</span>
<a name="l00251"></a>00251 <span class="keywordflow">return</span> <span class="keyword">true</span>; <span class="comment">// continue</span>
<a name="l00252"></a>00252 }
<a name="l00253"></a>00253
<a name="l00254"></a>00254 <span class="comment">// return true if the debugger wants us to stop at this point</span>
<a name="l00255"></a>00255 <span class="keywordtype">bool</span> StatementNode::abortStatement(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l00256"></a>00256 {
<a name="l00257"></a>00257 Debugger *dbg = exec-><a class="code" href="classKJS_1_1ExecState.html#a3b3a2b4b312b33a64beeb974c948201c" title="Returns the interpreter associated with this execution state.">dynamicInterpreter</a>()->imp()->debugger();
<a name="l00258"></a>00258 <span class="keywordflow">if</span> (dbg)
<a name="l00259"></a>00259 <span class="keywordflow">return</span> dbg->imp()->aborted();
<a name="l00260"></a>00260 <span class="keywordflow">else</span>
<a name="l00261"></a>00261 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00262"></a>00262 }
<a name="l00263"></a>00263
<a name="l00264"></a>00264 <span class="keywordtype">void</span> StatementNode::processFuncDecl(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *)
<a name="l00265"></a>00265 {
<a name="l00266"></a>00266 }
<a name="l00267"></a>00267
<a name="l00268"></a>00268 <span class="comment">// ----------------------------- NullNode -------------------------------------</span>
<a name="l00269"></a>00269
<a name="l00270"></a>00270 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> NullNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *)<span class="keyword"> const</span>
<a name="l00271"></a>00271 <span class="keyword"></span>{
<a name="l00272"></a>00272 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Null.html" title="Represents an primitive Null value.">Null</a>();
<a name="l00273"></a>00273 }
<a name="l00274"></a>00274
<a name="l00275"></a>00275 <span class="keywordtype">bool</span> NullNode::toBoolean(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *)<span class="keyword"> const</span>
<a name="l00276"></a>00276 <span class="keyword"></span>{
<a name="l00277"></a>00277 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00278"></a>00278 }
<a name="l00279"></a>00279
<a name="l00280"></a>00280 <span class="keywordtype">double</span> NullNode::toNumber(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *)<span class="keyword"> const</span>
<a name="l00281"></a>00281 <span class="keyword"></span>{
<a name="l00282"></a>00282 <span class="keywordflow">return</span> 0.0;
<a name="l00283"></a>00283 }
<a name="l00284"></a>00284
<a name="l00285"></a>00285 <a class="code" href="classKJS_1_1UString.html" title="Unicode string class.">UString</a> NullNode::toString(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *)<span class="keyword"> const</span>
<a name="l00286"></a>00286 <span class="keyword"></span>{
<a name="l00287"></a>00287 <span class="keywordflow">return</span> <span class="stringliteral">"null"</span>;
<a name="l00288"></a>00288 }
<a name="l00289"></a>00289
<a name="l00290"></a>00290 <span class="comment">// ----------------------------- BooleanNode ----------------------------------</span>
<a name="l00291"></a>00291
<a name="l00292"></a>00292 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> BooleanNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *)<span class="keyword"> const</span>
<a name="l00293"></a>00293 <span class="keyword"></span>{
<a name="l00294"></a>00294 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Boolean.html" title="Represents an primitive Boolean value.">Boolean</a>(val);
<a name="l00295"></a>00295 }
<a name="l00296"></a>00296
<a name="l00297"></a>00297 <span class="keywordtype">bool</span> BooleanNode::toBoolean(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *)<span class="keyword"> const</span>
<a name="l00298"></a>00298 <span class="keyword"></span>{
<a name="l00299"></a>00299 <span class="keywordflow">return</span> val;
<a name="l00300"></a>00300 }
<a name="l00301"></a>00301
<a name="l00302"></a>00302 <span class="keywordtype">double</span> BooleanNode::toNumber(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *)<span class="keyword"> const</span>
<a name="l00303"></a>00303 <span class="keyword"></span>{
<a name="l00304"></a>00304 <span class="keywordflow">return</span> val ? 1.0 : 0.0;
<a name="l00305"></a>00305 }
<a name="l00306"></a>00306
<a name="l00307"></a>00307 <a class="code" href="classKJS_1_1UString.html" title="Unicode string class.">UString</a> BooleanNode::toString(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *)<span class="keyword"> const</span>
<a name="l00308"></a>00308 <span class="keyword"></span>{
<a name="l00309"></a>00309 <span class="keywordflow">return</span> val ? <span class="stringliteral">"true"</span> : <span class="stringliteral">"false"</span>;
<a name="l00310"></a>00310 }
<a name="l00311"></a>00311
<a name="l00312"></a>00312 <span class="comment">// ----------------------------- NumberNode -----------------------------------</span>
<a name="l00313"></a>00313
<a name="l00314"></a>00314 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> NumberNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *)<span class="keyword"> const</span>
<a name="l00315"></a>00315 <span class="keyword"></span>{
<a name="l00316"></a>00316 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Number.html" title="Represents an primitive Number value.">Number</a>(val);
<a name="l00317"></a>00317 }
<a name="l00318"></a>00318
<a name="l00319"></a>00319 <span class="keywordtype">bool</span> NumberNode::toBoolean(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *)<span class="keyword"> const</span>
<a name="l00320"></a>00320 <span class="keyword"></span>{
<a name="l00321"></a>00321 <span class="keywordflow">return</span> !((val == 0) <span class="comment">/* || (iVal() == N0) */</span> || isNaN(val));
<a name="l00322"></a>00322 }
<a name="l00323"></a>00323
<a name="l00324"></a>00324 <span class="keywordtype">double</span> NumberNode::toNumber(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *)<span class="keyword"> const</span>
<a name="l00325"></a>00325 <span class="keyword"></span>{
<a name="l00326"></a>00326 <span class="keywordflow">return</span> val;
<a name="l00327"></a>00327 }
<a name="l00328"></a>00328
<a name="l00329"></a>00329 <a class="code" href="classKJS_1_1UString.html" title="Unicode string class.">UString</a> NumberNode::toString(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *)<span class="keyword"> const</span>
<a name="l00330"></a>00330 <span class="keyword"></span>{
<a name="l00331"></a>00331 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1UString.html#afa4fb189e0a0a6094b54516833eb0257" title="Constructs a string from an int.">UString::from</a>(val);
<a name="l00332"></a>00332 }
<a name="l00333"></a>00333
<a name="l00334"></a>00334 <span class="comment">// ----------------------------- StringNode -----------------------------------</span>
<a name="l00335"></a>00335
<a name="l00336"></a>00336 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> StringNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *)<span class="keyword"> const</span>
<a name="l00337"></a>00337 <span class="keyword"></span>{
<a name="l00338"></a>00338 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1String.html" title="Represents an primitive String value.">String</a>(val);
<a name="l00339"></a>00339 }
<a name="l00340"></a>00340
<a name="l00341"></a>00341 <span class="keywordtype">bool</span> StringNode::toBoolean(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *)<span class="keyword"> const</span>
<a name="l00342"></a>00342 <span class="keyword"></span>{
<a name="l00343"></a>00343 <span class="keywordflow">return</span> !val.isEmpty();
<a name="l00344"></a>00344 }
<a name="l00345"></a>00345
<a name="l00346"></a>00346 <span class="keywordtype">double</span> StringNode::toNumber(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *)<span class="keyword"> const</span>
<a name="l00347"></a>00347 <span class="keyword"></span>{
<a name="l00348"></a>00348 <span class="keywordflow">return</span> val.toDouble();
<a name="l00349"></a>00349 }
<a name="l00350"></a>00350
<a name="l00351"></a>00351 <a class="code" href="classKJS_1_1UString.html" title="Unicode string class.">UString</a> StringNode::toString(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *)<span class="keyword"> const</span>
<a name="l00352"></a>00352 <span class="keyword"></span>{
<a name="l00353"></a>00353 <span class="keywordflow">return</span> val;
<a name="l00354"></a>00354 }
<a name="l00355"></a>00355
<a name="l00356"></a>00356 <span class="comment">// ----------------------------- RegExpNode -----------------------------------</span>
<a name="l00357"></a>00357
<a name="l00358"></a>00358 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> RegExpNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l00359"></a>00359 <span class="keyword"></span>{
<a name="l00360"></a>00360 <a class="code" href="classKJS_1_1List.html" title="Native list type.">List</a> list;
<a name="l00361"></a>00361 <a class="code" href="classKJS_1_1String.html" title="Represents an primitive String value.">String</a> p(pattern);
<a name="l00362"></a>00362 <a class="code" href="classKJS_1_1String.html" title="Represents an primitive String value.">String</a> f(flags);
<a name="l00363"></a>00363 list.<a class="code" href="classKJS_1_1List.html#a0754cb5a81b130c65ab13a4e9cff5c52" title="Append an object to the end of the list.">append</a>(p);
<a name="l00364"></a>00364 list.<a class="code" href="classKJS_1_1List.html#a0754cb5a81b130c65ab13a4e9cff5c52" title="Append an object to the end of the list.">append</a>(f);
<a name="l00365"></a>00365
<a name="l00366"></a>00366 <a class="code" href="classKJS_1_1Object.html" title="Represents an Object.">Object</a> reg = exec-><a class="code" href="classKJS_1_1ExecState.html#af210e5fad440d91a939e71ccb2bf6be7" title="Returns the interpreter associated with the current scope's global object.">lexicalInterpreter</a>()->imp()->builtinRegExp();
<a name="l00367"></a>00367 <span class="keywordflow">return</span> reg.<a class="code" href="classKJS_1_1Object.html#a85a7d585cbaeaef5bff34676bb748cc7" title="Creates a new object based on this object.">construct</a>(exec,list);
<a name="l00368"></a>00368 }
<a name="l00369"></a>00369
<a name="l00370"></a>00370 <span class="keywordtype">bool</span> RegExpNode::toBoolean(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *)<span class="keyword"> const</span>
<a name="l00371"></a>00371 <span class="keyword"></span>{
<a name="l00372"></a>00372 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00373"></a>00373 }
<a name="l00374"></a>00374
<a name="l00375"></a>00375 <span class="comment">// ----------------------------- ThisNode -------------------------------------</span>
<a name="l00376"></a>00376
<a name="l00377"></a>00377 <span class="comment">// ECMA 11.1.1</span>
<a name="l00378"></a>00378 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> ThisNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l00379"></a>00379 <span class="keyword"></span>{
<a name="l00380"></a>00380 <span class="keywordflow">return</span> exec-><a class="code" href="classKJS_1_1ExecState.html#aa2835385776b40626e4cf06887c0550e" title="Returns the execution context associated with this execution state.">context</a>().imp()->thisValue();
<a name="l00381"></a>00381 }
<a name="l00382"></a>00382
<a name="l00383"></a>00383 <span class="comment">// ----------------------------- ResolveNode ----------------------------------</span>
<a name="l00384"></a>00384
<a name="l00385"></a>00385 <span class="comment">// ECMA 11.1.2 & 10.1.4</span>
<a name="l00386"></a>00386 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> ResolveNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l00387"></a>00387 <span class="keyword"></span>{
<a name="l00388"></a>00388 <span class="keywordflow">return</span> evaluateReference(exec).getValue(exec);
<a name="l00389"></a>00389 }
<a name="l00390"></a>00390
<a name="l00391"></a>00391 <a class="code" href="classKJS_1_1Reference.html" title="Defines a Javascript reference.">Reference</a> ResolveNode::evaluateReference(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l00392"></a>00392 <span class="keyword"></span>{
<a name="l00393"></a>00393 <a class="code" href="classKJS_1_1ScopeChain.html" title="A scope chain object.">ScopeChain</a> chain = exec-><a class="code" href="classKJS_1_1ExecState.html#aa2835385776b40626e4cf06887c0550e" title="Returns the execution context associated with this execution state.">context</a>().imp()->scopeChain();
<a name="l00394"></a>00394
<a name="l00395"></a>00395 <span class="keywordflow">while</span> (!chain.isEmpty()) {
<a name="l00396"></a>00396 ObjectImp *o = chain.top();
<a name="l00397"></a>00397
<a name="l00398"></a>00398 <span class="comment">//cerr << "Resolve: looking at '" << ident.ascii() << "'"</span>
<a name="l00399"></a>00399 <span class="comment">// << " in " << (void*)o << " " << o->classInfo()->className << endl;</span>
<a name="l00400"></a>00400 <span class="keywordflow">if</span> (o->hasProperty(exec,ident)) {
<a name="l00401"></a>00401 <span class="comment">//cerr << "Resolve: FOUND '" << ident.ascii() << "'"</span>
<a name="l00402"></a>00402 <span class="comment">// << " in " << (void*)o << " " << o->classInfo()->className << endl;</span>
<a name="l00403"></a>00403 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Reference.html" title="Defines a Javascript reference.">Reference</a>(o, ident);
<a name="l00404"></a>00404 }
<a name="l00405"></a>00405
<a name="l00406"></a>00406 chain.pop();
<a name="l00407"></a>00407 }
<a name="l00408"></a>00408
<a name="l00409"></a>00409 <span class="comment">// identifier not found</span>
<a name="l00410"></a>00410 <span class="preprocessor">#ifdef KJS_VERBOSE</span>
<a name="l00411"></a>00411 <span class="preprocessor"></span> cerr << <span class="stringliteral">"Resolve::evaluateReference: didn't find '"</span> << ident.ustring().ascii() << <span class="stringliteral">"'"</span> << <a class="codeRef" doxygen="kdecore.tag:../../kdecore/html/" href="../../kdecore/html/group__kdebug.html#ga313d520ed8f8f6b46eeef22cfb3b082a">endl</a>;
<a name="l00412"></a>00412 <span class="preprocessor">#endif</span>
<a name="l00413"></a>00413 <span class="preprocessor"></span> <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Reference.html" title="Defines a Javascript reference.">Reference</a>(<a class="code" href="classKJS_1_1Null.html" title="Represents an primitive Null value.">Null</a>(), ident);
<a name="l00414"></a>00414 }
<a name="l00415"></a>00415
<a name="l00416"></a>00416 <span class="comment">// ----------------------------- GroupNode ------------------------------------</span>
<a name="l00417"></a>00417
<a name="l00418"></a>00418 <span class="keywordtype">void</span> GroupNode::ref()
<a name="l00419"></a>00419 {
<a name="l00420"></a>00420 Node::ref();
<a name="l00421"></a>00421 <span class="keywordflow">if</span> ( group )
<a name="l00422"></a>00422 group->ref();
<a name="l00423"></a>00423 }
<a name="l00424"></a>00424
<a name="l00425"></a>00425 <span class="keywordtype">bool</span> GroupNode::deref()
<a name="l00426"></a>00426 {
<a name="l00427"></a>00427 <span class="keywordflow">if</span> ( group && group->deref() )
<a name="l00428"></a>00428 <span class="keyword">delete</span> group;
<a name="l00429"></a>00429 <span class="keywordflow">return</span> Node::deref();
<a name="l00430"></a>00430 }
<a name="l00431"></a>00431
<a name="l00432"></a>00432 <span class="comment">// ECMA 11.1.6</span>
<a name="l00433"></a>00433 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> GroupNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l00434"></a>00434 <span class="keyword"></span>{
<a name="l00435"></a>00435 <span class="keywordflow">return</span> group->evaluate(exec);
<a name="l00436"></a>00436 }
<a name="l00437"></a>00437
<a name="l00438"></a>00438 <a class="code" href="classKJS_1_1Reference.html" title="Defines a Javascript reference.">Reference</a> GroupNode::evaluateReference(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l00439"></a>00439 <span class="keyword"></span>{
<a name="l00440"></a>00440 <span class="keywordflow">return</span> group->evaluateReference(exec);
<a name="l00441"></a>00441 }
<a name="l00442"></a>00442
<a name="l00443"></a>00443 <span class="comment">// ----------------------------- ElementNode ----------------------------------</span>
<a name="l00444"></a>00444
<a name="l00445"></a>00445 <span class="keywordtype">void</span> ElementNode::ref()
<a name="l00446"></a>00446 {
<a name="l00447"></a>00447 <span class="keywordflow">for</span> (ElementNode *n = <span class="keyword">this</span>; n; n = n->list) {
<a name="l00448"></a>00448 n->Node::ref();
<a name="l00449"></a>00449 <span class="keywordflow">if</span> (n->node)
<a name="l00450"></a>00450 n->node->ref();
<a name="l00451"></a>00451 }
<a name="l00452"></a>00452 }
<a name="l00453"></a>00453
<a name="l00454"></a>00454 <span class="keywordtype">bool</span> ElementNode::deref()
<a name="l00455"></a>00455 {
<a name="l00456"></a>00456 ElementNode *<a class="codeRef" doxygen="kdecore.tag:../../kdecore/html/" href="../../kdecore/html/namespaceKStdAccel.html#a3c93cec83afd9c54d443fe78a9899502">next</a>;
<a name="l00457"></a>00457 <span class="keywordflow">for</span> (ElementNode *n = <span class="keyword">this</span>; n; n = next) {
<a name="l00458"></a>00458 next = n->list;
<a name="l00459"></a>00459 <span class="keywordflow">if</span> (n->node && n->node->deref())
<a name="l00460"></a>00460 <span class="keyword">delete</span> n->node;
<a name="l00461"></a>00461 if (n != <span class="keyword">this</span> && n->Node::deref())
<a name="l00462"></a>00462 <span class="keyword">delete</span> n;
<a name="l00463"></a>00463 }
<a name="l00464"></a>00464 <span class="keywordflow">return</span> Node::deref();
<a name="l00465"></a>00465 }
<a name="l00466"></a>00466
<a name="l00467"></a>00467 <span class="comment">// ECMA 11.1.4</span>
<a name="l00468"></a>00468 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> ElementNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l00469"></a>00469 <span class="keyword"></span>{
<a name="l00470"></a>00470 <a class="code" href="classKJS_1_1Object.html" title="Represents an Object.">Object</a> array = exec-><a class="code" href="classKJS_1_1ExecState.html#af210e5fad440d91a939e71ccb2bf6be7" title="Returns the interpreter associated with the current scope's global object.">lexicalInterpreter</a>()-><a class="code" href="classKJS_1_1Interpreter.html#a2f7e9fc6cb4e1e10f7b001cb7729d023" title="Returns the builtin "Array" object.">builtinArray</a>().<a class="code" href="classKJS_1_1Object.html#a85a7d585cbaeaef5bff34676bb748cc7" title="Creates a new object based on this object.">construct</a>(exec, <a class="code" href="classKJS_1_1List.html#ad30b847844813d118f8208dbfb6b5ad2" title="Returns a pointer to a static instance of an empty list.">List::empty</a>());
<a name="l00471"></a>00471 <span class="keywordtype">int</span> length = 0;
<a name="l00472"></a>00472 <span class="keywordflow">for</span> (<span class="keyword">const</span> ElementNode *n = <span class="keyword">this</span>; n; n = n->list) {
<a name="l00473"></a>00473 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> val = n->node->evaluate(exec);
<a name="l00474"></a>00474 KJS_CHECKEXCEPTIONVALUE
<a name="l00475"></a>00475 length += n->elision;
<a name="l00476"></a>00476 array.<a class="code" href="classKJS_1_1Object.html#aa67ec5ebaa19921db0fec1688378da2e" title="Sets the specified property.">put</a>(exec, length++, val);
<a name="l00477"></a>00477 }
<a name="l00478"></a>00478 <span class="keywordflow">return</span> array;
<a name="l00479"></a>00479 }
<a name="l00480"></a>00480
<a name="l00481"></a>00481 <span class="comment">// ----------------------------- ArrayNode ------------------------------------</span>
<a name="l00482"></a>00482
<a name="l00483"></a>00483 <span class="keywordtype">void</span> ArrayNode::ref()
<a name="l00484"></a>00484 {
<a name="l00485"></a>00485 Node::ref();
<a name="l00486"></a>00486 <span class="keywordflow">if</span> ( element )
<a name="l00487"></a>00487 element->ref();
<a name="l00488"></a>00488 }
<a name="l00489"></a>00489
<a name="l00490"></a>00490 <span class="keywordtype">bool</span> ArrayNode::deref()
<a name="l00491"></a>00491 {
<a name="l00492"></a>00492 <span class="keywordflow">if</span> ( element && element->deref() )
<a name="l00493"></a>00493 <span class="keyword">delete</span> element;
<a name="l00494"></a>00494 <span class="keywordflow">return</span> Node::deref();
<a name="l00495"></a>00495 }
<a name="l00496"></a>00496
<a name="l00497"></a>00497 <span class="comment">// ECMA 11.1.4</span>
<a name="l00498"></a>00498 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> ArrayNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l00499"></a>00499 <span class="keyword"></span>{
<a name="l00500"></a>00500 <a class="code" href="classKJS_1_1Object.html" title="Represents an Object.">Object</a> array;
<a name="l00501"></a>00501 <span class="keywordtype">int</span> length;
<a name="l00502"></a>00502
<a name="l00503"></a>00503 <span class="keywordflow">if</span> (element) {
<a name="l00504"></a>00504 array = <a class="code" href="classKJS_1_1Object.html" title="Represents an Object.">Object</a>(static_cast<ObjectImp*>(element->evaluate(exec).imp()));
<a name="l00505"></a>00505 KJS_CHECKEXCEPTIONVALUE
<a name="l00506"></a>00506 length = opt ? array.<a class="code" href="classKJS_1_1Object.html#a394b5e197af70d97568c5e17fe61b19f" title="Retrieves the specified property from the object.">get</a>(exec,lengthPropertyName).<a class="code" href="classKJS_1_1Value.html#aa116929fe115defe059fc6e0ddf0d362" title="Performs the ToInt32 type conversion operation on this value (ECMA 9.5)">toInt32</a>(exec) : 0;
<a name="l00507"></a>00507 } <span class="keywordflow">else</span> {
<a name="l00508"></a>00508 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> newArr = exec-><a class="code" href="classKJS_1_1ExecState.html#af210e5fad440d91a939e71ccb2bf6be7" title="Returns the interpreter associated with the current scope's global object.">lexicalInterpreter</a>()-><a class="code" href="classKJS_1_1Interpreter.html#a2f7e9fc6cb4e1e10f7b001cb7729d023" title="Returns the builtin "Array" object.">builtinArray</a>().<a class="code" href="classKJS_1_1Object.html#a85a7d585cbaeaef5bff34676bb748cc7" title="Creates a new object based on this object.">construct</a>(exec,<a class="code" href="classKJS_1_1List.html#ad30b847844813d118f8208dbfb6b5ad2" title="Returns a pointer to a static instance of an empty list.">List::empty</a>());
<a name="l00509"></a>00509 array = <a class="code" href="classKJS_1_1Object.html" title="Represents an Object.">Object</a>(static_cast<ObjectImp*>(newArr.imp()));
<a name="l00510"></a>00510 length = 0;
<a name="l00511"></a>00511 }
<a name="l00512"></a>00512
<a name="l00513"></a>00513 <span class="keywordflow">if</span> (opt)
<a name="l00514"></a>00514 array.<a class="code" href="classKJS_1_1Object.html#aa67ec5ebaa19921db0fec1688378da2e" title="Sets the specified property.">put</a>(exec,lengthPropertyName, <a class="code" href="classKJS_1_1Number.html" title="Represents an primitive Number value.">Number</a>(elision + length), DontEnum | DontDelete);
<a name="l00515"></a>00515
<a name="l00516"></a>00516 <span class="keywordflow">return</span> array;
<a name="l00517"></a>00517 }
<a name="l00518"></a>00518
<a name="l00519"></a>00519 <span class="comment">// ----------------------------- ObjectLiteralNode ----------------------------</span>
<a name="l00520"></a>00520
<a name="l00521"></a>00521 <span class="keywordtype">void</span> ObjectLiteralNode::ref()
<a name="l00522"></a>00522 {
<a name="l00523"></a>00523 Node::ref();
<a name="l00524"></a>00524 <span class="keywordflow">if</span> ( list )
<a name="l00525"></a>00525 list->ref();
<a name="l00526"></a>00526 }
<a name="l00527"></a>00527
<a name="l00528"></a>00528 <span class="keywordtype">bool</span> ObjectLiteralNode::deref()
<a name="l00529"></a>00529 {
<a name="l00530"></a>00530 <span class="keywordflow">if</span> ( list && list->deref() )
<a name="l00531"></a>00531 <span class="keyword">delete</span> list;
<a name="l00532"></a>00532 <span class="keywordflow">return</span> Node::deref();
<a name="l00533"></a>00533 }
<a name="l00534"></a>00534
<a name="l00535"></a>00535 <span class="comment">// ECMA 11.1.5</span>
<a name="l00536"></a>00536 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> ObjectLiteralNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l00537"></a>00537 <span class="keyword"></span>{
<a name="l00538"></a>00538 <span class="keywordflow">if</span> (list)
<a name="l00539"></a>00539 <span class="keywordflow">return</span> list->evaluate(exec);
<a name="l00540"></a>00540
<a name="l00541"></a>00541 <span class="keywordflow">return</span> exec-><a class="code" href="classKJS_1_1ExecState.html#af210e5fad440d91a939e71ccb2bf6be7" title="Returns the interpreter associated with the current scope's global object.">lexicalInterpreter</a>()-><a class="code" href="classKJS_1_1Interpreter.html#ad467d009a322544d50af535549c9a18d" title="Returns the builtin "Object" object.">builtinObject</a>().<a class="code" href="classKJS_1_1Object.html#a85a7d585cbaeaef5bff34676bb748cc7" title="Creates a new object based on this object.">construct</a>(exec,<a class="code" href="classKJS_1_1List.html#ad30b847844813d118f8208dbfb6b5ad2" title="Returns a pointer to a static instance of an empty list.">List::empty</a>());
<a name="l00542"></a>00542 }
<a name="l00543"></a>00543
<a name="l00544"></a>00544 <span class="comment">// ----------------------------- PropertyValueNode ----------------------------</span>
<a name="l00545"></a>00545
<a name="l00546"></a>00546 <span class="keywordtype">void</span> PropertyValueNode::ref()
<a name="l00547"></a>00547 {
<a name="l00548"></a>00548 <span class="keywordflow">for</span> (PropertyValueNode *n = <span class="keyword">this</span>; n; n = n->list) {
<a name="l00549"></a>00549 n->Node::ref();
<a name="l00550"></a>00550 <span class="keywordflow">if</span> (n->name)
<a name="l00551"></a>00551 n->name->ref();
<a name="l00552"></a>00552 <span class="keywordflow">if</span> (n->assign)
<a name="l00553"></a>00553 n->assign->ref();
<a name="l00554"></a>00554 }
<a name="l00555"></a>00555 }
<a name="l00556"></a>00556
<a name="l00557"></a>00557 <span class="keywordtype">bool</span> PropertyValueNode::deref()
<a name="l00558"></a>00558 {
<a name="l00559"></a>00559 PropertyValueNode *next;
<a name="l00560"></a>00560 <span class="keywordflow">for</span> (PropertyValueNode *n = <span class="keyword">this</span>; n; n = next) {
<a name="l00561"></a>00561 next = n->list;
<a name="l00562"></a>00562 <span class="keywordflow">if</span> ( n->name && n->name->deref() )
<a name="l00563"></a>00563 <span class="keyword">delete</span> n->name;
<a name="l00564"></a>00564 if ( n->assign && n->assign->deref() )
<a name="l00565"></a>00565 <span class="keyword">delete</span> n->assign;
<a name="l00566"></a>00566 if (n != <span class="keyword">this</span> && n->Node::deref() )
<a name="l00567"></a>00567 <span class="keyword">delete</span> n;
<a name="l00568"></a>00568 }
<a name="l00569"></a>00569 <span class="keywordflow">return</span> Node::deref();
<a name="l00570"></a>00570 }
<a name="l00571"></a>00571
<a name="l00572"></a>00572 <span class="comment">// ECMA 11.1.5</span>
<a name="l00573"></a>00573 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> PropertyValueNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l00574"></a>00574 <span class="keyword"></span>{
<a name="l00575"></a>00575 <a class="code" href="classKJS_1_1Object.html" title="Represents an Object.">Object</a> obj = exec-><a class="code" href="classKJS_1_1ExecState.html#af210e5fad440d91a939e71ccb2bf6be7" title="Returns the interpreter associated with the current scope's global object.">lexicalInterpreter</a>()-><a class="code" href="classKJS_1_1Interpreter.html#ad467d009a322544d50af535549c9a18d" title="Returns the builtin "Object" object.">builtinObject</a>().<a class="code" href="classKJS_1_1Object.html#a85a7d585cbaeaef5bff34676bb748cc7" title="Creates a new object based on this object.">construct</a>(exec, <a class="code" href="classKJS_1_1List.html#ad30b847844813d118f8208dbfb6b5ad2" title="Returns a pointer to a static instance of an empty list.">List::empty</a>());
<a name="l00576"></a>00576
<a name="l00577"></a>00577 <span class="keywordflow">for</span> (<span class="keyword">const</span> PropertyValueNode *p = <span class="keyword">this</span>; p; p = p->list) {
<a name="l00578"></a>00578 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> n = p->name->evaluate(exec);
<a name="l00579"></a>00579 KJS_CHECKEXCEPTIONVALUE
<a name="l00580"></a>00580 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v = p->assign->evaluate(exec);
<a name="l00581"></a>00581 KJS_CHECKEXCEPTIONVALUE
<a name="l00582"></a>00582
<a name="l00583"></a>00583 obj.<a class="code" href="classKJS_1_1Object.html#aa67ec5ebaa19921db0fec1688378da2e" title="Sets the specified property.">put</a>(exec, <a class="code" href="classKJS_1_1Identifier.html" title="Represents an Identifier for a Javascript object.">Identifier</a>(n.<a class="code" href="classKJS_1_1Value.html#a8611b80d868cebf8dd4af2f966810874" title="Performs the ToString type conversion operation on this value (ECMA 9.8)">toString</a>(exec)), v);
<a name="l00584"></a>00584 }
<a name="l00585"></a>00585
<a name="l00586"></a>00586 <span class="keywordflow">return</span> obj;
<a name="l00587"></a>00587 }
<a name="l00588"></a>00588
<a name="l00589"></a>00589 <span class="comment">// ----------------------------- PropertyNode ---------------------------------</span>
<a name="l00590"></a>00590
<a name="l00591"></a>00591 <span class="comment">// ECMA 11.1.5</span>
<a name="l00592"></a>00592 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> PropertyNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> * <span class="comment">/*exec*/</span>)<span class="keyword"> const</span>
<a name="l00593"></a>00593 <span class="keyword"></span>{
<a name="l00594"></a>00594 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> s;
<a name="l00595"></a>00595
<a name="l00596"></a>00596 <span class="keywordflow">if</span> (str.isNull()) {
<a name="l00597"></a>00597 s = <a class="code" href="classKJS_1_1String.html" title="Represents an primitive String value.">String</a>(<a class="code" href="classKJS_1_1UString.html#afa4fb189e0a0a6094b54516833eb0257" title="Constructs a string from an int.">UString::from</a>(numeric));
<a name="l00598"></a>00598 } <span class="keywordflow">else</span> {
<a name="l00599"></a>00599 s = <a class="code" href="classKJS_1_1String.html" title="Represents an primitive String value.">String</a>(str.ustring());
<a name="l00600"></a>00600 }
<a name="l00601"></a>00601
<a name="l00602"></a>00602 <span class="keywordflow">return</span> s;
<a name="l00603"></a>00603 }
<a name="l00604"></a>00604
<a name="l00605"></a>00605 <span class="comment">// ----------------------------- AccessorNode1 --------------------------------</span>
<a name="l00606"></a>00606
<a name="l00607"></a>00607 <span class="keywordtype">void</span> AccessorNode1::ref()
<a name="l00608"></a>00608 {
<a name="l00609"></a>00609 Node::ref();
<a name="l00610"></a>00610 <span class="keywordflow">if</span> ( expr1 )
<a name="l00611"></a>00611 expr1->ref();
<a name="l00612"></a>00612 <span class="keywordflow">if</span> ( expr2 )
<a name="l00613"></a>00613 expr2->ref();
<a name="l00614"></a>00614 }
<a name="l00615"></a>00615
<a name="l00616"></a>00616 <span class="keywordtype">bool</span> AccessorNode1::deref()
<a name="l00617"></a>00617 {
<a name="l00618"></a>00618 <span class="keywordflow">if</span> ( expr1 && expr1->deref() )
<a name="l00619"></a>00619 <span class="keyword">delete</span> expr1;
<a name="l00620"></a>00620 <span class="keywordflow">if</span> ( expr2 && expr2->deref() )
<a name="l00621"></a>00621 <span class="keyword">delete</span> expr2;
<a name="l00622"></a>00622 <span class="keywordflow">return</span> Node::deref();
<a name="l00623"></a>00623 }
<a name="l00624"></a>00624
<a name="l00625"></a>00625 <span class="comment">// ECMA 11.2.1a</span>
<a name="l00626"></a>00626 <a class="code" href="classKJS_1_1Reference.html" title="Defines a Javascript reference.">Reference</a> AccessorNode1::evaluateReference(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l00627"></a>00627 <span class="keyword"></span>{
<a name="l00628"></a>00628 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v1 = expr1->evaluate(exec);
<a name="l00629"></a>00629 KJS_CHECKEXCEPTIONREFERENCE
<a name="l00630"></a>00630 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v2 = expr2->evaluate(exec);
<a name="l00631"></a>00631 KJS_CHECKEXCEPTIONREFERENCE
<a name="l00632"></a>00632 <span class="preprocessor">#ifndef NDEBUG</span>
<a name="l00633"></a>00633 <span class="preprocessor"></span> <span class="comment">// catch errors before being caught in toObject(). better error message.</span>
<a name="l00634"></a>00634 <span class="keywordflow">if</span> (v1.<a class="code" href="classKJS_1_1Value.html#a1704785fc8140c274b0e7ec03eb0dfe2" title="Checks whether or not the value is of a particular tpye.">isA</a>(UndefinedType) || v1.<a class="code" href="classKJS_1_1Value.html#a1704785fc8140c274b0e7ec03eb0dfe2" title="Checks whether or not the value is of a particular tpye.">isA</a>(NullType)) {
<a name="l00635"></a>00635 <a class="code" href="classKJS_1_1UString.html" title="Unicode string class.">UString</a> s = <span class="stringliteral">"Attempted to access property on %s object "</span>
<a name="l00636"></a>00636 <span class="stringliteral">"(result of expression %s)"</span>;
<a name="l00637"></a>00637 (void)throwError(exec, TypeError, s.<a class="code" href="classKJS_1_1UString.html#a8698c19cee7a6ac284cedcc213a16149">cstring</a>().c_str(), v1, <span class="keyword">this</span>);
<a name="l00638"></a>00638 <span class="keywordflow">return</span> Reference::makeValueReference(<a class="code" href="classKJS_1_1Undefined.html" title="Represents an primitive Undefined value.">Undefined</a>());
<a name="l00639"></a>00639 }
<a name="l00640"></a>00640 <span class="preprocessor">#endif</span>
<a name="l00641"></a>00641 <span class="preprocessor"></span> <a class="code" href="classKJS_1_1Object.html" title="Represents an Object.">Object</a> o = v1.<a class="code" href="classKJS_1_1Value.html#a072d956ce72fd1387bacb27dc466239d" title="Performs the ToObject type conversion operation on this value (ECMA 9.9)">toObject</a>(exec);
<a name="l00642"></a>00642 <span class="keywordtype">unsigned</span> i;
<a name="l00643"></a>00643 <span class="keywordflow">if</span> (v2.toUInt32(i))
<a name="l00644"></a>00644 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Reference.html" title="Defines a Javascript reference.">Reference</a>(o, i);
<a name="l00645"></a>00645 <a class="code" href="classKJS_1_1UString.html" title="Unicode string class.">UString</a> s = v2.toString(exec);
<a name="l00646"></a>00646 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Reference.html" title="Defines a Javascript reference.">Reference</a>(o, <a class="code" href="classKJS_1_1Identifier.html" title="Represents an Identifier for a Javascript object.">Identifier</a>(s));
<a name="l00647"></a>00647 }
<a name="l00648"></a>00648
<a name="l00649"></a>00649 <span class="comment">// ----------------------------- AccessorNode2 --------------------------------</span>
<a name="l00650"></a>00650
<a name="l00651"></a>00651 <span class="keywordtype">void</span> AccessorNode2::ref()
<a name="l00652"></a>00652 {
<a name="l00653"></a>00653 Node::ref();
<a name="l00654"></a>00654 <span class="keywordflow">if</span> ( expr )
<a name="l00655"></a>00655 expr->ref();
<a name="l00656"></a>00656 }
<a name="l00657"></a>00657
<a name="l00658"></a>00658 <span class="keywordtype">bool</span> AccessorNode2::deref()
<a name="l00659"></a>00659 {
<a name="l00660"></a>00660 <span class="keywordflow">if</span> ( expr && expr->deref() )
<a name="l00661"></a>00661 <span class="keyword">delete</span> expr;
<a name="l00662"></a>00662 <span class="keywordflow">return</span> Node::deref();
<a name="l00663"></a>00663 }
<a name="l00664"></a>00664
<a name="l00665"></a>00665 <span class="comment">// ECMA 11.2.1b</span>
<a name="l00666"></a>00666 <a class="code" href="classKJS_1_1Reference.html" title="Defines a Javascript reference.">Reference</a> AccessorNode2::evaluateReference(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l00667"></a>00667 <span class="keyword"></span>{
<a name="l00668"></a>00668 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v = expr->evaluate(exec);
<a name="l00669"></a>00669 KJS_CHECKEXCEPTIONREFERENCE
<a name="l00670"></a>00670 assert(v.<a class="code" href="classKJS_1_1Value.html#acd8509ab6b7622c16fdf021803fdd2cb" title="Returns whether or not this is a valid value.">isValid</a>());
<a name="l00671"></a>00671 <span class="preprocessor">#ifndef NDEBUG</span>
<a name="l00672"></a>00672 <span class="preprocessor"></span> <span class="comment">// catch errors before being caught in toObject(). better error message.</span>
<a name="l00673"></a>00673 <span class="keywordflow">if</span> (v.<a class="code" href="classKJS_1_1Value.html#a1704785fc8140c274b0e7ec03eb0dfe2" title="Checks whether or not the value is of a particular tpye.">isA</a>(UndefinedType) || v.<a class="code" href="classKJS_1_1Value.html#a1704785fc8140c274b0e7ec03eb0dfe2" title="Checks whether or not the value is of a particular tpye.">isA</a>(NullType)) {
<a name="l00674"></a>00674 <a class="code" href="classKJS_1_1UString.html" title="Unicode string class.">UString</a> s = <span class="stringliteral">"Attempted to access '"</span> + ident.ustring() +
<a name="l00675"></a>00675 <span class="stringliteral">"' property on %s object (result of expression %s)"</span>;
<a name="l00676"></a>00676 (void)throwError(exec, TypeError, s.<a class="code" href="classKJS_1_1UString.html#a8698c19cee7a6ac284cedcc213a16149">cstring</a>().c_str(), v, <span class="keyword">this</span>);
<a name="l00677"></a>00677 <span class="keywordflow">return</span> Reference::makeValueReference(<a class="code" href="classKJS_1_1Undefined.html" title="Represents an primitive Undefined value.">Undefined</a>());
<a name="l00678"></a>00678 }
<a name="l00679"></a>00679 <span class="preprocessor">#endif</span>
<a name="l00680"></a>00680 <span class="preprocessor"></span> <a class="code" href="classKJS_1_1Object.html" title="Represents an Object.">Object</a> o = v.<a class="code" href="classKJS_1_1Value.html#a072d956ce72fd1387bacb27dc466239d" title="Performs the ToObject type conversion operation on this value (ECMA 9.9)">toObject</a>(exec);
<a name="l00681"></a>00681 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Reference.html" title="Defines a Javascript reference.">Reference</a>(o, ident);
<a name="l00682"></a>00682 }
<a name="l00683"></a>00683
<a name="l00684"></a>00684 <span class="comment">// ----------------------------- ArgumentListNode -----------------------------</span>
<a name="l00685"></a>00685
<a name="l00686"></a>00686 <span class="keywordtype">void</span> ArgumentListNode::ref()
<a name="l00687"></a>00687 {
<a name="l00688"></a>00688 <span class="keywordflow">for</span> (ArgumentListNode *n = <span class="keyword">this</span>; n; n = n->list) {
<a name="l00689"></a>00689 n->Node::ref();
<a name="l00690"></a>00690 <span class="keywordflow">if</span> (n->expr)
<a name="l00691"></a>00691 n->expr->ref();
<a name="l00692"></a>00692 }
<a name="l00693"></a>00693 }
<a name="l00694"></a>00694
<a name="l00695"></a>00695 <span class="keywordtype">bool</span> ArgumentListNode::deref()
<a name="l00696"></a>00696 {
<a name="l00697"></a>00697 ArgumentListNode *next;
<a name="l00698"></a>00698 <span class="keywordflow">for</span> (ArgumentListNode *n = <span class="keyword">this</span>; n; n = next) {
<a name="l00699"></a>00699 next = n->list;
<a name="l00700"></a>00700 <span class="keywordflow">if</span> (n->expr && n->expr->deref())
<a name="l00701"></a>00701 <span class="keyword">delete</span> n->expr;
<a name="l00702"></a>00702 if (n != <span class="keyword">this</span> && n->Node::deref())
<a name="l00703"></a>00703 <span class="keyword">delete</span> n;
<a name="l00704"></a>00704 }
<a name="l00705"></a>00705 <span class="keywordflow">return</span> Node::deref();
<a name="l00706"></a>00706 }
<a name="l00707"></a>00707
<a name="l00708"></a>00708 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> ArgumentListNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> * <span class="comment">/*exec*/</span>)<span class="keyword"> const</span>
<a name="l00709"></a>00709 <span class="keyword"></span>{
<a name="l00710"></a>00710 assert(0);
<a name="l00711"></a>00711 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a>(); <span class="comment">// dummy, see evaluateList()</span>
<a name="l00712"></a>00712 }
<a name="l00713"></a>00713
<a name="l00714"></a>00714 <span class="comment">// ECMA 11.2.4</span>
<a name="l00715"></a>00715 <a class="code" href="classKJS_1_1List.html" title="Native list type.">List</a> ArgumentListNode::evaluateList(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l00716"></a>00716 <span class="keyword"></span>{
<a name="l00717"></a>00717 <a class="code" href="classKJS_1_1List.html" title="Native list type.">List</a> l;
<a name="l00718"></a>00718
<a name="l00719"></a>00719 <span class="keywordflow">for</span> (<span class="keyword">const</span> ArgumentListNode *n = <span class="keyword">this</span>; n; n = n->list) {
<a name="l00720"></a>00720 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v = n->expr->evaluate(exec);
<a name="l00721"></a>00721 KJS_CHECKEXCEPTIONLIST
<a name="l00722"></a>00722 l.<a class="code" href="classKJS_1_1List.html#a0754cb5a81b130c65ab13a4e9cff5c52" title="Append an object to the end of the list.">append</a>(v);
<a name="l00723"></a>00723 }
<a name="l00724"></a>00724
<a name="l00725"></a>00725 <span class="keywordflow">return</span> l;
<a name="l00726"></a>00726 }
<a name="l00727"></a>00727
<a name="l00728"></a>00728 <span class="comment">// ----------------------------- ArgumentsNode --------------------------------</span>
<a name="l00729"></a>00729
<a name="l00730"></a>00730 <span class="keywordtype">void</span> ArgumentsNode::ref()
<a name="l00731"></a>00731 {
<a name="l00732"></a>00732 Node::ref();
<a name="l00733"></a>00733 <span class="keywordflow">if</span> ( list )
<a name="l00734"></a>00734 list->ref();
<a name="l00735"></a>00735 }
<a name="l00736"></a>00736
<a name="l00737"></a>00737 <span class="keywordtype">bool</span> ArgumentsNode::deref()
<a name="l00738"></a>00738 {
<a name="l00739"></a>00739 <span class="keywordflow">if</span> ( list && list->deref() )
<a name="l00740"></a>00740 <span class="keyword">delete</span> list;
<a name="l00741"></a>00741 <span class="keywordflow">return</span> Node::deref();
<a name="l00742"></a>00742 }
<a name="l00743"></a>00743
<a name="l00744"></a>00744 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> ArgumentsNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> * <span class="comment">/*exec*/</span>)<span class="keyword"> const</span>
<a name="l00745"></a>00745 <span class="keyword"></span>{
<a name="l00746"></a>00746 assert(0);
<a name="l00747"></a>00747 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a>(); <span class="comment">// dummy, see evaluateList()</span>
<a name="l00748"></a>00748 }
<a name="l00749"></a>00749
<a name="l00750"></a>00750 <span class="comment">// ECMA 11.2.4</span>
<a name="l00751"></a>00751 <a class="code" href="classKJS_1_1List.html" title="Native list type.">List</a> ArgumentsNode::evaluateList(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l00752"></a>00752 <span class="keyword"></span>{
<a name="l00753"></a>00753 <span class="keywordflow">if</span> (!list)
<a name="l00754"></a>00754 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1List.html" title="Native list type.">List</a>();
<a name="l00755"></a>00755
<a name="l00756"></a>00756 <span class="keywordflow">return</span> list->evaluateList(exec);
<a name="l00757"></a>00757 }
<a name="l00758"></a>00758
<a name="l00759"></a>00759 <span class="comment">// ----------------------------- NewExprNode ----------------------------------</span>
<a name="l00760"></a>00760
<a name="l00761"></a>00761 <span class="comment">// ECMA 11.2.2</span>
<a name="l00762"></a>00762
<a name="l00763"></a>00763 <span class="keywordtype">void</span> NewExprNode::ref()
<a name="l00764"></a>00764 {
<a name="l00765"></a>00765 Node::ref();
<a name="l00766"></a>00766 <span class="keywordflow">if</span> ( expr )
<a name="l00767"></a>00767 expr->ref();
<a name="l00768"></a>00768 <span class="keywordflow">if</span> ( args )
<a name="l00769"></a>00769 args->ref();
<a name="l00770"></a>00770 }
<a name="l00771"></a>00771
<a name="l00772"></a>00772 <span class="keywordtype">bool</span> NewExprNode::deref()
<a name="l00773"></a>00773 {
<a name="l00774"></a>00774 <span class="keywordflow">if</span> ( expr && expr->deref() )
<a name="l00775"></a>00775 <span class="keyword">delete</span> expr;
<a name="l00776"></a>00776 <span class="keywordflow">if</span> ( args && args->deref() )
<a name="l00777"></a>00777 <span class="keyword">delete</span> args;
<a name="l00778"></a>00778 <span class="keywordflow">return</span> Node::deref();
<a name="l00779"></a>00779 }
<a name="l00780"></a>00780
<a name="l00781"></a>00781 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> NewExprNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l00782"></a>00782 <span class="keyword"></span>{
<a name="l00783"></a>00783 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v = expr->evaluate(exec);
<a name="l00784"></a>00784 KJS_CHECKEXCEPTIONVALUE
<a name="l00785"></a>00785
<a name="l00786"></a>00786 <a class="code" href="classKJS_1_1List.html" title="Native list type.">List</a> argList;
<a name="l00787"></a>00787 <span class="keywordflow">if</span> (args) {
<a name="l00788"></a>00788 argList = args->evaluateList(exec);
<a name="l00789"></a>00789 KJS_CHECKEXCEPTIONVALUE
<a name="l00790"></a>00790 }
<a name="l00791"></a>00791
<a name="l00792"></a>00792 <span class="keywordflow">if</span> (v.<a class="code" href="classKJS_1_1Value.html#ae452f07da93d3888448158e634d71657" title="Returns the type of value.">type</a>() != ObjectType) {
<a name="l00793"></a>00793 <span class="keywordflow">return</span> throwError(exec, TypeError, <span class="stringliteral">"Value %s (result of expression %s) is not an object. Cannot be used with new."</span>, v, expr);
<a name="l00794"></a>00794 }
<a name="l00795"></a>00795
<a name="l00796"></a>00796 <a class="code" href="classKJS_1_1Object.html" title="Represents an Object.">Object</a> constr = <a class="code" href="classKJS_1_1Object.html" title="Represents an Object.">Object</a>(static_cast<ObjectImp*>(v.imp()));
<a name="l00797"></a>00797 <span class="keywordflow">if</span> (!constr.<a class="code" href="classKJS_1_1Object.html#a4895ab8a12addaadb7e7f623fca8164b" title="Whether or not the object implements the construct() method.">implementsConstruct</a>()) {
<a name="l00798"></a>00798 <span class="keywordflow">return</span> throwError(exec, TypeError, <span class="stringliteral">"Value %s (result of expression %s) is not a constructor. Cannot be used with new."</span>, v, expr);
<a name="l00799"></a>00799 }
<a name="l00800"></a>00800
<a name="l00801"></a>00801 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> res = constr.<a class="code" href="classKJS_1_1Object.html#a85a7d585cbaeaef5bff34676bb748cc7" title="Creates a new object based on this object.">construct</a>(exec,argList);
<a name="l00802"></a>00802
<a name="l00803"></a>00803 <span class="keywordflow">return</span> res;
<a name="l00804"></a>00804 }
<a name="l00805"></a>00805
<a name="l00806"></a>00806 <span class="comment">// ----------------------------- FunctionCallNode -----------------------------</span>
<a name="l00807"></a>00807
<a name="l00808"></a>00808 <span class="keywordtype">void</span> FunctionCallNode::ref()
<a name="l00809"></a>00809 {
<a name="l00810"></a>00810 Node::ref();
<a name="l00811"></a>00811 <span class="keywordflow">if</span> ( expr )
<a name="l00812"></a>00812 expr->ref();
<a name="l00813"></a>00813 <span class="keywordflow">if</span> ( args )
<a name="l00814"></a>00814 args->ref();
<a name="l00815"></a>00815 }
<a name="l00816"></a>00816
<a name="l00817"></a>00817 <span class="keywordtype">bool</span> FunctionCallNode::deref()
<a name="l00818"></a>00818 {
<a name="l00819"></a>00819 <span class="keywordflow">if</span> ( expr && expr->deref() )
<a name="l00820"></a>00820 <span class="keyword">delete</span> expr;
<a name="l00821"></a>00821 <span class="keywordflow">if</span> ( args && args->deref() )
<a name="l00822"></a>00822 <span class="keyword">delete</span> args;
<a name="l00823"></a>00823 <span class="keywordflow">return</span> Node::deref();
<a name="l00824"></a>00824 }
<a name="l00825"></a>00825
<a name="l00826"></a>00826 <span class="comment">// ECMA 11.2.3</span>
<a name="l00827"></a>00827 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> FunctionCallNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l00828"></a>00828 <span class="keyword"></span>{
<a name="l00829"></a>00829 <a class="code" href="classKJS_1_1Reference.html" title="Defines a Javascript reference.">Reference</a> ref = expr->evaluateReference(exec);
<a name="l00830"></a>00830 KJS_CHECKEXCEPTIONVALUE
<a name="l00831"></a>00831
<a name="l00832"></a>00832 <a class="code" href="classKJS_1_1List.html" title="Native list type.">List</a> argList = args->evaluateList(exec);
<a name="l00833"></a>00833 KJS_CHECKEXCEPTIONVALUE
<a name="l00834"></a>00834
<a name="l00835"></a>00835 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v = ref.<a class="code" href="classKJS_1_1Reference.html#a0b221dd9c9eb8681f49adf852402dfb0" title="Performs the GetValue type conversion operation on this value (ECMA 8.7.1)">getValue</a>(exec);
<a name="l00836"></a>00836 KJS_CHECKEXCEPTIONVALUE
<a name="l00837"></a>00837
<a name="l00838"></a>00838 <span class="keywordflow">if</span> (v.type() != ObjectType) {
<a name="l00839"></a>00839 <span class="keywordflow">return</span> throwError(exec, TypeError, <span class="stringliteral">"Value %s (result of expression %s) is not an object. Cannot be called."</span>, v, expr);
<a name="l00840"></a>00840 }
<a name="l00841"></a>00841
<a name="l00842"></a>00842 <a class="code" href="classKJS_1_1Object.html" title="Represents an Object.">Object</a> func = <a class="code" href="classKJS_1_1Object.html" title="Represents an Object.">Object</a>(static_cast<ObjectImp*>(v.imp()));
<a name="l00843"></a>00843
<a name="l00844"></a>00844 <span class="keywordflow">if</span> (!func.<a class="code" href="classKJS_1_1Object.html#a7c08a913629973d9eddf5b7f53ef5200" title="Whether or not the object implements the call() method.">implementsCall</a>()) {
<a name="l00845"></a>00845 <span class="keywordflow">return</span> throwError(exec, TypeError, <span class="stringliteral">"Object %s (result of expression %s) does not allow calls."</span>, v, expr);
<a name="l00846"></a>00846 }
<a name="l00847"></a>00847
<a name="l00848"></a>00848 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> thisVal;
<a name="l00849"></a>00849 <span class="keywordflow">if</span> (ref.isMutable())
<a name="l00850"></a>00850 thisVal = ref.<a class="code" href="classKJS_1_1Reference.html#af070cb7ed41d232ffd418e47a29b07c2" title="Performs the GetBase type conversion operation on this value (ECMA 8.7)">getBase</a>(exec);
<a name="l00851"></a>00851 <span class="keywordflow">else</span>
<a name="l00852"></a>00852 thisVal = <a class="code" href="classKJS_1_1Null.html" title="Represents an primitive Null value.">Null</a>();
<a name="l00853"></a>00853
<a name="l00854"></a>00854 <span class="keywordflow">if</span> (thisVal.<a class="code" href="classKJS_1_1Value.html#ae452f07da93d3888448158e634d71657" title="Returns the type of value.">type</a>() == ObjectType &&
<a name="l00855"></a>00855 <a class="code" href="classKJS_1_1Object.html#ab12ea86cb49e21ea6c5547507f8d128e" title="Converts a Value into an Object.">Object::dynamicCast</a>(thisVal).inherits(&ActivationImp::info))
<a name="l00856"></a>00856 thisVal = <a class="code" href="classKJS_1_1Null.html" title="Represents an primitive Null value.">Null</a>();
<a name="l00857"></a>00857
<a name="l00858"></a>00858 <span class="keywordflow">if</span> (thisVal.<a class="code" href="classKJS_1_1Value.html#ae452f07da93d3888448158e634d71657" title="Returns the type of value.">type</a>() != ObjectType) {
<a name="l00859"></a>00859 <span class="comment">// ECMA 11.2.3 says that in this situation the this value should be null.</span>
<a name="l00860"></a>00860 <span class="comment">// However, section 10.2.3 says that in the case where the value provided</span>
<a name="l00861"></a>00861 <span class="comment">// by the caller is null, the global object should be used. It also says</span>
<a name="l00862"></a>00862 <span class="comment">// that the section does not apply to interal functions, but for simplicity</span>
<a name="l00863"></a>00863 <span class="comment">// of implementation we use the global object anyway here. This guarantees</span>
<a name="l00864"></a>00864 <span class="comment">// that in host objects you always get a valid object for this.</span>
<a name="l00865"></a>00865 <span class="comment">// thisVal = Null();</span>
<a name="l00866"></a>00866 thisVal = exec-><a class="code" href="classKJS_1_1ExecState.html#a3b3a2b4b312b33a64beeb974c948201c" title="Returns the interpreter associated with this execution state.">dynamicInterpreter</a>()-><a class="code" href="classKJS_1_1Interpreter.html#a6d4867616475f8bca54549e910ae1344" title="Returns the object that is used as the global object during all script execution performed by this in...">globalObject</a>();
<a name="l00867"></a>00867 }
<a name="l00868"></a>00868
<a name="l00869"></a>00869 <a class="code" href="classKJS_1_1Object.html" title="Represents an Object.">Object</a> thisObj = <a class="code" href="classKJS_1_1Object.html#ab12ea86cb49e21ea6c5547507f8d128e" title="Converts a Value into an Object.">Object::dynamicCast</a>(thisVal);
<a name="l00870"></a>00870 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> result = func.<a class="code" href="classKJS_1_1Object.html#ab07be3e90ba2ba8352a9609cc4ac703c" title="Calls this object as if it is a function.">call</a>(exec,thisObj, argList);
<a name="l00871"></a>00871
<a name="l00872"></a>00872 <span class="keywordflow">return</span> result;
<a name="l00873"></a>00873 }
<a name="l00874"></a>00874
<a name="l00875"></a>00875 <span class="comment">// ----------------------------- PostfixNode ----------------------------------</span>
<a name="l00876"></a>00876
<a name="l00877"></a>00877 <span class="keywordtype">void</span> PostfixNode::ref()
<a name="l00878"></a>00878 {
<a name="l00879"></a>00879 Node::ref();
<a name="l00880"></a>00880 <span class="keywordflow">if</span> ( expr )
<a name="l00881"></a>00881 expr->ref();
<a name="l00882"></a>00882 }
<a name="l00883"></a>00883
<a name="l00884"></a>00884 <span class="keywordtype">bool</span> PostfixNode::deref()
<a name="l00885"></a>00885 {
<a name="l00886"></a>00886 <span class="keywordflow">if</span> ( expr && expr->deref() )
<a name="l00887"></a>00887 <span class="keyword">delete</span> expr;
<a name="l00888"></a>00888 <span class="keywordflow">return</span> Node::deref();
<a name="l00889"></a>00889 }
<a name="l00890"></a>00890
<a name="l00891"></a>00891 <span class="comment">// ECMA 11.3</span>
<a name="l00892"></a>00892 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> PostfixNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l00893"></a>00893 <span class="keyword"></span>{
<a name="l00894"></a>00894 <a class="code" href="classKJS_1_1Reference.html" title="Defines a Javascript reference.">Reference</a> ref = expr->evaluateReference(exec);
<a name="l00895"></a>00895 KJS_CHECKEXCEPTIONVALUE
<a name="l00896"></a>00896 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v = ref.<a class="code" href="classKJS_1_1Reference.html#a0b221dd9c9eb8681f49adf852402dfb0" title="Performs the GetValue type conversion operation on this value (ECMA 8.7.1)">getValue</a>(exec);
<a name="l00897"></a>00897 <span class="keywordtype">double</span> n = v.<a class="code" href="classKJS_1_1Value.html#abc006ad65a05568bbebe2c63604766b8" title="Performs the ToNumber type conversion operation on this value (ECMA 9.3)">toNumber</a>(exec);
<a name="l00898"></a>00898
<a name="l00899"></a>00899 <span class="keywordtype">double</span> newValue = (oper == OpPlusPlus) ? n + 1 : n - 1;
<a name="l00900"></a>00900
<a name="l00901"></a>00901 ref.<a class="code" href="classKJS_1_1Reference.html#a9a7b40644137d1a2a98a3f682c951735" title="Performs the PutValue type conversion operation on this value (ECMA 8.7.1)">putValue</a>(exec, <a class="code" href="classKJS_1_1Number.html" title="Represents an primitive Number value.">Number</a>(newValue));
<a name="l00902"></a>00902
<a name="l00903"></a>00903 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Number.html" title="Represents an primitive Number value.">Number</a>(n);
<a name="l00904"></a>00904 }
<a name="l00905"></a>00905
<a name="l00906"></a>00906 <span class="comment">// ----------------------------- DeleteNode -----------------------------------</span>
<a name="l00907"></a>00907
<a name="l00908"></a>00908 <span class="keywordtype">void</span> DeleteNode::ref()
<a name="l00909"></a>00909 {
<a name="l00910"></a>00910 Node::ref();
<a name="l00911"></a>00911 <span class="keywordflow">if</span> ( expr )
<a name="l00912"></a>00912 expr->ref();
<a name="l00913"></a>00913 }
<a name="l00914"></a>00914
<a name="l00915"></a>00915 <span class="keywordtype">bool</span> DeleteNode::deref()
<a name="l00916"></a>00916 {
<a name="l00917"></a>00917 <span class="keywordflow">if</span> ( expr && expr->deref() )
<a name="l00918"></a>00918 <span class="keyword">delete</span> expr;
<a name="l00919"></a>00919 <span class="keywordflow">return</span> Node::deref();
<a name="l00920"></a>00920 }
<a name="l00921"></a>00921
<a name="l00922"></a>00922 <span class="comment">// ECMA 11.4.1</span>
<a name="l00923"></a>00923 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> DeleteNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l00924"></a>00924 <span class="keyword"></span>{
<a name="l00925"></a>00925 <a class="code" href="classKJS_1_1Reference.html" title="Defines a Javascript reference.">Reference</a> ref = expr->evaluateReference(exec);
<a name="l00926"></a>00926 KJS_CHECKEXCEPTIONVALUE
<a name="l00927"></a>00927 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Boolean.html" title="Represents an primitive Boolean value.">Boolean</a>(ref.deleteValue(exec));
<a name="l00928"></a>00928 }
<a name="l00929"></a>00929
<a name="l00930"></a>00930 <span class="comment">// ----------------------------- VoidNode -------------------------------------</span>
<a name="l00931"></a>00931
<a name="l00932"></a>00932 <span class="keywordtype">void</span> VoidNode::ref()
<a name="l00933"></a>00933 {
<a name="l00934"></a>00934 Node::ref();
<a name="l00935"></a>00935 <span class="keywordflow">if</span> ( expr )
<a name="l00936"></a>00936 expr->ref();
<a name="l00937"></a>00937 }
<a name="l00938"></a>00938
<a name="l00939"></a>00939 <span class="keywordtype">bool</span> VoidNode::deref()
<a name="l00940"></a>00940 {
<a name="l00941"></a>00941 <span class="keywordflow">if</span> ( expr && expr->deref() )
<a name="l00942"></a>00942 <span class="keyword">delete</span> expr;
<a name="l00943"></a>00943 <span class="keywordflow">return</span> Node::deref();
<a name="l00944"></a>00944 }
<a name="l00945"></a>00945
<a name="l00946"></a>00946 <span class="comment">// ECMA 11.4.2</span>
<a name="l00947"></a>00947 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> VoidNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l00948"></a>00948 <span class="keyword"></span>{
<a name="l00949"></a>00949 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> dummy1 = expr->evaluate(exec);
<a name="l00950"></a>00950 KJS_CHECKEXCEPTIONVALUE
<a name="l00951"></a>00951
<a name="l00952"></a>00952 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Undefined.html" title="Represents an primitive Undefined value.">Undefined</a>();
<a name="l00953"></a>00953 }
<a name="l00954"></a>00954
<a name="l00955"></a>00955 <span class="comment">// ----------------------------- TypeOfNode -----------------------------------</span>
<a name="l00956"></a>00956
<a name="l00957"></a>00957 <span class="keywordtype">void</span> TypeOfNode::ref()
<a name="l00958"></a>00958 {
<a name="l00959"></a>00959 Node::ref();
<a name="l00960"></a>00960 <span class="keywordflow">if</span> ( expr )
<a name="l00961"></a>00961 expr->ref();
<a name="l00962"></a>00962 }
<a name="l00963"></a>00963
<a name="l00964"></a>00964 <span class="keywordtype">bool</span> TypeOfNode::deref()
<a name="l00965"></a>00965 {
<a name="l00966"></a>00966 <span class="keywordflow">if</span> ( expr && expr->deref() )
<a name="l00967"></a>00967 <span class="keyword">delete</span> expr;
<a name="l00968"></a>00968 <span class="keywordflow">return</span> Node::deref();
<a name="l00969"></a>00969 }
<a name="l00970"></a>00970
<a name="l00971"></a>00971 <span class="comment">// ECMA 11.4.3</span>
<a name="l00972"></a>00972 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> TypeOfNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l00973"></a>00973 <span class="keyword"></span>{
<a name="l00974"></a>00974 <span class="keyword">const</span> <span class="keywordtype">char</span> *s = 0L;
<a name="l00975"></a>00975 <a class="code" href="classKJS_1_1Reference.html" title="Defines a Javascript reference.">Reference</a> ref = expr->evaluateReference(exec);
<a name="l00976"></a>00976 KJS_CHECKEXCEPTIONVALUE
<a name="l00977"></a>00977 <span class="keywordflow">if</span> (ref.isMutable()) {
<a name="l00978"></a>00978 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> b = ref.<a class="code" href="classKJS_1_1Reference.html#af070cb7ed41d232ffd418e47a29b07c2" title="Performs the GetBase type conversion operation on this value (ECMA 8.7)">getBase</a>(exec);
<a name="l00979"></a>00979 <span class="keywordflow">if</span> (b.<a class="code" href="classKJS_1_1Value.html#ae452f07da93d3888448158e634d71657" title="Returns the type of value.">type</a>() == NullType)
<a name="l00980"></a>00980 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1String.html" title="Represents an primitive String value.">String</a>(<span class="stringliteral">"undefined"</span>);
<a name="l00981"></a>00981 }
<a name="l00982"></a>00982 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v = ref.<a class="code" href="classKJS_1_1Reference.html#a0b221dd9c9eb8681f49adf852402dfb0" title="Performs the GetValue type conversion operation on this value (ECMA 8.7.1)">getValue</a>(exec);
<a name="l00983"></a>00983 <span class="keywordflow">switch</span> (v.<a class="code" href="classKJS_1_1Value.html#ae452f07da93d3888448158e634d71657" title="Returns the type of value.">type</a>())
<a name="l00984"></a>00984 {
<a name="l00985"></a>00985 <span class="keywordflow">case</span> UndefinedType:
<a name="l00986"></a>00986 s = <span class="stringliteral">"undefined"</span>;
<a name="l00987"></a>00987 <span class="keywordflow">break</span>;
<a name="l00988"></a>00988 <span class="keywordflow">case</span> NullType:
<a name="l00989"></a>00989 s = <span class="stringliteral">"object"</span>;
<a name="l00990"></a>00990 <span class="keywordflow">break</span>;
<a name="l00991"></a>00991 <span class="keywordflow">case</span> BooleanType:
<a name="l00992"></a>00992 s = <span class="stringliteral">"boolean"</span>;
<a name="l00993"></a>00993 <span class="keywordflow">break</span>;
<a name="l00994"></a>00994 <span class="keywordflow">case</span> NumberType:
<a name="l00995"></a>00995 s = <span class="stringliteral">"number"</span>;
<a name="l00996"></a>00996 <span class="keywordflow">break</span>;
<a name="l00997"></a>00997 <span class="keywordflow">case</span> StringType:
<a name="l00998"></a>00998 s = <span class="stringliteral">"string"</span>;
<a name="l00999"></a>00999 <span class="keywordflow">break</span>;
<a name="l01000"></a>01000 <span class="keywordflow">default</span>:
<a name="l01001"></a>01001 <span class="keywordflow">if</span> (v.<a class="code" href="classKJS_1_1Value.html#ae452f07da93d3888448158e634d71657" title="Returns the type of value.">type</a>() == ObjectType && <span class="keyword">static_cast<</span>ObjectImp*<span class="keyword">></span>(v.imp())->implementsCall())
<a name="l01002"></a>01002 s = <span class="stringliteral">"function"</span>;
<a name="l01003"></a>01003 <span class="keywordflow">else</span>
<a name="l01004"></a>01004 s = <span class="stringliteral">"object"</span>;
<a name="l01005"></a>01005 <span class="keywordflow">break</span>;
<a name="l01006"></a>01006 }
<a name="l01007"></a>01007
<a name="l01008"></a>01008 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1String.html" title="Represents an primitive String value.">String</a>(s);
<a name="l01009"></a>01009 }
<a name="l01010"></a>01010
<a name="l01011"></a>01011 <span class="comment">// ----------------------------- PrefixNode -----------------------------------</span>
<a name="l01012"></a>01012
<a name="l01013"></a>01013 <span class="keywordtype">void</span> PrefixNode::ref()
<a name="l01014"></a>01014 {
<a name="l01015"></a>01015 Node::ref();
<a name="l01016"></a>01016 <span class="keywordflow">if</span> ( expr )
<a name="l01017"></a>01017 expr->ref();
<a name="l01018"></a>01018 }
<a name="l01019"></a>01019
<a name="l01020"></a>01020 <span class="keywordtype">bool</span> PrefixNode::deref()
<a name="l01021"></a>01021 {
<a name="l01022"></a>01022 <span class="keywordflow">if</span> ( expr && expr->deref() )
<a name="l01023"></a>01023 <span class="keyword">delete</span> expr;
<a name="l01024"></a>01024 <span class="keywordflow">return</span> Node::deref();
<a name="l01025"></a>01025 }
<a name="l01026"></a>01026
<a name="l01027"></a>01027 <span class="comment">// ECMA 11.4.4 and 11.4.5</span>
<a name="l01028"></a>01028 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> PrefixNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l01029"></a>01029 <span class="keyword"></span>{
<a name="l01030"></a>01030 <a class="code" href="classKJS_1_1Reference.html" title="Defines a Javascript reference.">Reference</a> ref = expr->evaluateReference(exec);
<a name="l01031"></a>01031 KJS_CHECKEXCEPTIONVALUE
<a name="l01032"></a>01032 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v = ref.<a class="code" href="classKJS_1_1Reference.html#a0b221dd9c9eb8681f49adf852402dfb0" title="Performs the GetValue type conversion operation on this value (ECMA 8.7.1)">getValue</a>(exec);
<a name="l01033"></a>01033 <span class="keywordtype">double</span> n = v.<a class="code" href="classKJS_1_1Value.html#abc006ad65a05568bbebe2c63604766b8" title="Performs the ToNumber type conversion operation on this value (ECMA 9.3)">toNumber</a>(exec);
<a name="l01034"></a>01034
<a name="l01035"></a>01035 <span class="keywordtype">double</span> newValue = (oper == OpPlusPlus) ? n + 1 : n - 1;
<a name="l01036"></a>01036 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> n2 = <a class="code" href="classKJS_1_1Number.html" title="Represents an primitive Number value.">Number</a>(newValue);
<a name="l01037"></a>01037
<a name="l01038"></a>01038 ref.<a class="code" href="classKJS_1_1Reference.html#a9a7b40644137d1a2a98a3f682c951735" title="Performs the PutValue type conversion operation on this value (ECMA 8.7.1)">putValue</a>(exec,n2);
<a name="l01039"></a>01039
<a name="l01040"></a>01040 <span class="keywordflow">return</span> n2;
<a name="l01041"></a>01041 }
<a name="l01042"></a>01042
<a name="l01043"></a>01043 <span class="comment">// ----------------------------- UnaryPlusNode --------------------------------</span>
<a name="l01044"></a>01044
<a name="l01045"></a>01045 <span class="keywordtype">void</span> UnaryPlusNode::ref()
<a name="l01046"></a>01046 {
<a name="l01047"></a>01047 Node::ref();
<a name="l01048"></a>01048 <span class="keywordflow">if</span> ( expr )
<a name="l01049"></a>01049 expr->ref();
<a name="l01050"></a>01050 }
<a name="l01051"></a>01051
<a name="l01052"></a>01052 <span class="keywordtype">bool</span> UnaryPlusNode::deref()
<a name="l01053"></a>01053 {
<a name="l01054"></a>01054 <span class="keywordflow">if</span> ( expr && expr->deref() )
<a name="l01055"></a>01055 <span class="keyword">delete</span> expr;
<a name="l01056"></a>01056 <span class="keywordflow">return</span> Node::deref();
<a name="l01057"></a>01057 }
<a name="l01058"></a>01058
<a name="l01059"></a>01059 <span class="comment">// ECMA 11.4.6</span>
<a name="l01060"></a>01060 <span class="keywordtype">double</span> UnaryPlusNode::toNumber(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l01061"></a>01061 <span class="keyword"></span>{
<a name="l01062"></a>01062 <span class="keywordflow">return</span> expr->toNumber(exec);
<a name="l01063"></a>01063 }
<a name="l01064"></a>01064
<a name="l01065"></a>01065 <span class="comment">// could go</span>
<a name="l01066"></a>01066 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> UnaryPlusNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l01067"></a>01067 <span class="keyword"></span>{
<a name="l01068"></a>01068 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v = expr->evaluate(exec);
<a name="l01069"></a>01069 KJS_CHECKEXCEPTIONVALUE
<a name="l01070"></a>01070
<a name="l01071"></a>01071 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Number.html" title="Represents an primitive Number value.">Number</a>(v.<a class="code" href="classKJS_1_1Value.html#abc006ad65a05568bbebe2c63604766b8" title="Performs the ToNumber type conversion operation on this value (ECMA 9.3)">toNumber</a>(exec)); <span class="comment">/* TODO: optimize */</span>
<a name="l01072"></a>01072 }
<a name="l01073"></a>01073
<a name="l01074"></a>01074 <span class="comment">// ----------------------------- NegateNode -----------------------------------</span>
<a name="l01075"></a>01075
<a name="l01076"></a>01076 <span class="keywordtype">void</span> NegateNode::ref()
<a name="l01077"></a>01077 {
<a name="l01078"></a>01078 Node::ref();
<a name="l01079"></a>01079 <span class="keywordflow">if</span> ( expr )
<a name="l01080"></a>01080 expr->ref();
<a name="l01081"></a>01081 }
<a name="l01082"></a>01082
<a name="l01083"></a>01083 <span class="keywordtype">bool</span> NegateNode::deref()
<a name="l01084"></a>01084 {
<a name="l01085"></a>01085 <span class="keywordflow">if</span> ( expr && expr->deref() )
<a name="l01086"></a>01086 <span class="keyword">delete</span> expr;
<a name="l01087"></a>01087 <span class="keywordflow">return</span> Node::deref();
<a name="l01088"></a>01088 }
<a name="l01089"></a>01089
<a name="l01090"></a>01090 <span class="comment">// ECMA 11.4.7</span>
<a name="l01091"></a>01091 <span class="keywordtype">double</span> NegateNode::toNumber(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l01092"></a>01092 <span class="keyword"></span>{
<a name="l01093"></a>01093 <span class="keywordflow">return</span> -expr->toNumber(exec);
<a name="l01094"></a>01094 }
<a name="l01095"></a>01095
<a name="l01096"></a>01096 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> NegateNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l01097"></a>01097 <span class="keyword"></span>{
<a name="l01098"></a>01098 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v = expr->evaluate(exec);
<a name="l01099"></a>01099 KJS_CHECKEXCEPTIONVALUE
<a name="l01100"></a>01100 <span class="keywordtype">double</span> d = -v.<a class="code" href="classKJS_1_1Value.html#abc006ad65a05568bbebe2c63604766b8" title="Performs the ToNumber type conversion operation on this value (ECMA 9.3)">toNumber</a>(exec);
<a name="l01101"></a>01101
<a name="l01102"></a>01102 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Number.html" title="Represents an primitive Number value.">Number</a>(d);
<a name="l01103"></a>01103 }
<a name="l01104"></a>01104
<a name="l01105"></a>01105 <span class="comment">// ----------------------------- BitwiseNotNode -------------------------------</span>
<a name="l01106"></a>01106
<a name="l01107"></a>01107 <span class="keywordtype">void</span> BitwiseNotNode::ref()
<a name="l01108"></a>01108 {
<a name="l01109"></a>01109 Node::ref();
<a name="l01110"></a>01110 <span class="keywordflow">if</span> ( expr )
<a name="l01111"></a>01111 expr->ref();
<a name="l01112"></a>01112 }
<a name="l01113"></a>01113
<a name="l01114"></a>01114 <span class="keywordtype">bool</span> BitwiseNotNode::deref()
<a name="l01115"></a>01115 {
<a name="l01116"></a>01116 <span class="keywordflow">if</span> ( expr && expr->deref() )
<a name="l01117"></a>01117 <span class="keyword">delete</span> expr;
<a name="l01118"></a>01118 <span class="keywordflow">return</span> Node::deref();
<a name="l01119"></a>01119 }
<a name="l01120"></a>01120
<a name="l01121"></a>01121 <span class="comment">// ECMA 11.4.8</span>
<a name="l01122"></a>01122 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> BitwiseNotNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l01123"></a>01123 <span class="keyword"></span>{
<a name="l01124"></a>01124 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v = expr->evaluate(exec);
<a name="l01125"></a>01125 KJS_CHECKEXCEPTIONVALUE
<a name="l01126"></a>01126 <span class="keywordtype">int</span> i32 = v.<a class="code" href="classKJS_1_1Value.html#aa116929fe115defe059fc6e0ddf0d362" title="Performs the ToInt32 type conversion operation on this value (ECMA 9.5)">toInt32</a>(exec);
<a name="l01127"></a>01127
<a name="l01128"></a>01128 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Number.html" title="Represents an primitive Number value.">Number</a>(~i32);
<a name="l01129"></a>01129 }
<a name="l01130"></a>01130
<a name="l01131"></a>01131 <span class="comment">// ----------------------------- LogicalNotNode -------------------------------</span>
<a name="l01132"></a>01132
<a name="l01133"></a>01133 <span class="keywordtype">void</span> LogicalNotNode::ref()
<a name="l01134"></a>01134 {
<a name="l01135"></a>01135 Node::ref();
<a name="l01136"></a>01136 <span class="keywordflow">if</span> ( expr )
<a name="l01137"></a>01137 expr->ref();
<a name="l01138"></a>01138 }
<a name="l01139"></a>01139
<a name="l01140"></a>01140 <span class="keywordtype">bool</span> LogicalNotNode::deref()
<a name="l01141"></a>01141 {
<a name="l01142"></a>01142 <span class="keywordflow">if</span> ( expr && expr->deref() )
<a name="l01143"></a>01143 <span class="keyword">delete</span> expr;
<a name="l01144"></a>01144 <span class="keywordflow">return</span> Node::deref();
<a name="l01145"></a>01145 }
<a name="l01146"></a>01146
<a name="l01147"></a>01147 <span class="comment">// ECMA 11.4.9</span>
<a name="l01148"></a>01148 <span class="keywordtype">bool</span> LogicalNotNode::toBoolean(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l01149"></a>01149 <span class="keyword"></span>{
<a name="l01150"></a>01150 <span class="keywordflow">return</span> !expr->toBoolean(exec);
<a name="l01151"></a>01151 }
<a name="l01152"></a>01152
<a name="l01153"></a>01153 <span class="comment">// could remove this</span>
<a name="l01154"></a>01154 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> LogicalNotNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l01155"></a>01155 <span class="keyword"></span>{
<a name="l01156"></a>01156 <span class="keywordtype">bool</span> b = expr-><a class="code" href="classKJS_1_1Value.html#abdcb3fc1afee9326af85eec35592f0b8" title="Performs the ToBoolean type conversion operation on this value (ECMA 9.2)">toBoolean</a>(exec);
<a name="l01157"></a>01157 KJS_CHECKEXCEPTIONVALUE
<a name="l01158"></a>01158
<a name="l01159"></a>01159 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Boolean.html" title="Represents an primitive Boolean value.">Boolean</a>(!b);
<a name="l01160"></a>01160 }
<a name="l01161"></a>01161
<a name="l01162"></a>01162 <span class="comment">// ----------------------------- MultNode -------------------------------------</span>
<a name="l01163"></a>01163
<a name="l01164"></a>01164 <span class="keywordtype">void</span> MultNode::ref()
<a name="l01165"></a>01165 {
<a name="l01166"></a>01166 Node::ref();
<a name="l01167"></a>01167 <span class="keywordflow">if</span> ( term1 )
<a name="l01168"></a>01168 term1->ref();
<a name="l01169"></a>01169 <span class="keywordflow">if</span> ( term2 )
<a name="l01170"></a>01170 term2->ref();
<a name="l01171"></a>01171 }
<a name="l01172"></a>01172
<a name="l01173"></a>01173 <span class="keywordtype">bool</span> MultNode::deref()
<a name="l01174"></a>01174 {
<a name="l01175"></a>01175 <span class="keywordflow">if</span> ( term1 && term1->deref() )
<a name="l01176"></a>01176 <span class="keyword">delete</span> term1;
<a name="l01177"></a>01177 <span class="keywordflow">if</span> ( term2 && term2->deref() )
<a name="l01178"></a>01178 <span class="keyword">delete</span> term2;
<a name="l01179"></a>01179 <span class="keywordflow">return</span> Node::deref();
<a name="l01180"></a>01180 }
<a name="l01181"></a>01181
<a name="l01182"></a>01182 <span class="comment">// ECMA 11.5</span>
<a name="l01183"></a>01183 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> MultNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l01184"></a>01184 <span class="keyword"></span>{
<a name="l01185"></a>01185 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v1 = term1->evaluate(exec);
<a name="l01186"></a>01186 KJS_CHECKEXCEPTIONVALUE
<a name="l01187"></a>01187
<a name="l01188"></a>01188 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v2 = term2->evaluate(exec);
<a name="l01189"></a>01189 KJS_CHECKEXCEPTIONVALUE
<a name="l01190"></a>01190
<a name="l01191"></a>01191 <span class="keywordflow">return</span> mult(exec,v1, v2, oper);
<a name="l01192"></a>01192 }
<a name="l01193"></a>01193
<a name="l01194"></a>01194 <span class="comment">// ----------------------------- AddNode --------------------------------------</span>
<a name="l01195"></a>01195
<a name="l01196"></a>01196 <span class="comment">// factory for an appropriate addition or substraction node</span>
<a name="l01197"></a>01197 Node* AddNode::create(Node *t1, Node *t2, <span class="keywordtype">char</span> op)
<a name="l01198"></a>01198 {
<a name="l01199"></a>01199 <span class="comment">// ### many more combinations to check for</span>
<a name="l01200"></a>01200 <span class="comment">// fold constants</span>
<a name="l01201"></a>01201 <span class="keywordflow">if</span> ((t1->type() == NumberType || t1->type() == BooleanType) &&
<a name="l01202"></a>01202 (t2->type() == NumberType || t2->type() == BooleanType)) {
<a name="l01203"></a>01203 <span class="keywordtype">double</span> d = t2->toNumber(0);
<a name="l01204"></a>01204 Node* n = <span class="keyword">new</span> NumberNode(t1->toNumber(0) + (op == <span class="charliteral">'+'</span> ? d : -d));
<a name="l01205"></a>01205 <span class="keyword">delete</span> t1;
<a name="l01206"></a>01206 <span class="keyword">delete</span> t2;
<a name="l01207"></a>01207 <span class="keywordflow">return</span> n;
<a name="l01208"></a>01208 }
<a name="l01209"></a>01209
<a name="l01210"></a>01210 <span class="keywordflow">if</span> (op == <span class="charliteral">'+'</span> && t2->type() == StringType)
<a name="l01211"></a>01211 <span class="keywordflow">return</span> <span class="keyword">new</span> AppendStringNode(t1, t2->toString(0));
<a name="l01212"></a>01212
<a name="l01213"></a>01213 <span class="comment">// fall back to generic node</span>
<a name="l01214"></a>01214 <span class="keywordflow">return</span> <span class="keyword">new</span> AddNode(t1, t2, op);
<a name="l01215"></a>01215 }
<a name="l01216"></a>01216
<a name="l01217"></a>01217 <span class="keywordtype">void</span> AddNode::ref()
<a name="l01218"></a>01218 {
<a name="l01219"></a>01219 Node::ref();
<a name="l01220"></a>01220 <span class="keywordflow">if</span> ( term1 )
<a name="l01221"></a>01221 term1->ref();
<a name="l01222"></a>01222 <span class="keywordflow">if</span> ( term2 )
<a name="l01223"></a>01223 term2->ref();
<a name="l01224"></a>01224 }
<a name="l01225"></a>01225
<a name="l01226"></a>01226 <span class="keywordtype">bool</span> AddNode::deref()
<a name="l01227"></a>01227 {
<a name="l01228"></a>01228 <span class="keywordflow">if</span> ( term1 && term1->deref() )
<a name="l01229"></a>01229 <span class="keyword">delete</span> term1;
<a name="l01230"></a>01230 <span class="keywordflow">if</span> ( term2 && term2->deref() )
<a name="l01231"></a>01231 <span class="keyword">delete</span> term2;
<a name="l01232"></a>01232 <span class="keywordflow">return</span> Node::deref();
<a name="l01233"></a>01233 }
<a name="l01234"></a>01234
<a name="l01235"></a>01235 <span class="comment">// ECMA 11.6</span>
<a name="l01236"></a>01236 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> AddNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l01237"></a>01237 <span class="keyword"></span>{
<a name="l01238"></a>01238 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v1 = term1->evaluate(exec);
<a name="l01239"></a>01239 KJS_CHECKEXCEPTIONVALUE
<a name="l01240"></a>01240
<a name="l01241"></a>01241 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v2 = term2->evaluate(exec);
<a name="l01242"></a>01242 KJS_CHECKEXCEPTIONVALUE
<a name="l01243"></a>01243
<a name="l01244"></a>01244 <span class="keywordflow">return</span> add(exec,v1, v2, oper);
<a name="l01245"></a>01245 }
<a name="l01246"></a>01246
<a name="l01247"></a>01247 <span class="comment">// ------------------------ AddNumberNode ------------------------------------</span>
<a name="l01248"></a>01248
<a name="l01249"></a>01249 <span class="keywordtype">void</span> AppendStringNode::ref()
<a name="l01250"></a>01250 {
<a name="l01251"></a>01251 Node::ref();
<a name="l01252"></a>01252 term->ref();
<a name="l01253"></a>01253 }
<a name="l01254"></a>01254
<a name="l01255"></a>01255 <span class="keywordtype">bool</span> AppendStringNode::deref()
<a name="l01256"></a>01256 {
<a name="l01257"></a>01257 <span class="keywordflow">if</span> (term->deref())
<a name="l01258"></a>01258 <span class="keyword">delete</span> term;
<a name="l01259"></a>01259 <span class="keywordflow">return</span> Node::deref();
<a name="l01260"></a>01260 }
<a name="l01261"></a>01261
<a name="l01262"></a>01262 <span class="comment">// ECMA 11.6 (special case of string appending)</span>
<a name="l01263"></a>01263 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> AppendStringNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l01264"></a>01264 <span class="keyword"></span>{
<a name="l01265"></a>01265 <a class="code" href="classKJS_1_1UString.html" title="Unicode string class.">UString</a> s = term->toString(exec);
<a name="l01266"></a>01266 KJS_CHECKEXCEPTIONVALUE
<a name="l01267"></a>01267
<a name="l01268"></a>01268 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1String.html" title="Represents an primitive String value.">String</a>(s + str);
<a name="l01269"></a>01269 }
<a name="l01270"></a>01270
<a name="l01271"></a>01271 <span class="comment">// ----------------------------- ShiftNode ------------------------------------</span>
<a name="l01272"></a>01272
<a name="l01273"></a>01273 <span class="keywordtype">void</span> ShiftNode::ref()
<a name="l01274"></a>01274 {
<a name="l01275"></a>01275 Node::ref();
<a name="l01276"></a>01276 <span class="keywordflow">if</span> ( term1 )
<a name="l01277"></a>01277 term1->ref();
<a name="l01278"></a>01278 <span class="keywordflow">if</span> ( term2 )
<a name="l01279"></a>01279 term2->ref();
<a name="l01280"></a>01280 }
<a name="l01281"></a>01281
<a name="l01282"></a>01282 <span class="keywordtype">bool</span> ShiftNode::deref()
<a name="l01283"></a>01283 {
<a name="l01284"></a>01284 <span class="keywordflow">if</span> ( term1 && term1->deref() )
<a name="l01285"></a>01285 <span class="keyword">delete</span> term1;
<a name="l01286"></a>01286 <span class="keywordflow">if</span> ( term2 && term2->deref() )
<a name="l01287"></a>01287 <span class="keyword">delete</span> term2;
<a name="l01288"></a>01288 <span class="keywordflow">return</span> Node::deref();
<a name="l01289"></a>01289 }
<a name="l01290"></a>01290
<a name="l01291"></a>01291 <span class="comment">// ECMA 11.7</span>
<a name="l01292"></a>01292 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> ShiftNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l01293"></a>01293 <span class="keyword"></span>{
<a name="l01294"></a>01294 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v1 = term1->evaluate(exec);
<a name="l01295"></a>01295 KJS_CHECKEXCEPTIONVALUE
<a name="l01296"></a>01296 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v2 = term2->evaluate(exec);
<a name="l01297"></a>01297 KJS_CHECKEXCEPTIONVALUE
<a name="l01298"></a>01298 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i2 = v2.toUInt32(exec);
<a name="l01299"></a>01299 i2 &= 0x1f;
<a name="l01300"></a>01300
<a name="l01301"></a>01301 <span class="keywordflow">switch</span> (oper) {
<a name="l01302"></a>01302 <span class="keywordflow">case</span> OpLShift:
<a name="l01303"></a>01303 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Number.html" title="Represents an primitive Number value.">Number</a>(v1.<a class="code" href="classKJS_1_1Value.html#aa116929fe115defe059fc6e0ddf0d362" title="Performs the ToInt32 type conversion operation on this value (ECMA 9.5)">toInt32</a>(exec) << i2);
<a name="l01304"></a>01304 <span class="keywordflow">case</span> OpRShift:
<a name="l01305"></a>01305 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Number.html" title="Represents an primitive Number value.">Number</a>(v1.<a class="code" href="classKJS_1_1Value.html#aa116929fe115defe059fc6e0ddf0d362" title="Performs the ToInt32 type conversion operation on this value (ECMA 9.5)">toInt32</a>(exec) >> i2);
<a name="l01306"></a>01306 <span class="keywordflow">case</span> OpURShift:
<a name="l01307"></a>01307 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Number.html" title="Represents an primitive Number value.">Number</a>(v1.<a class="code" href="classKJS_1_1Value.html#a6aee2e9f36bd37afdfb2f0678f8cf69e" title="Performs the ToUInt32 type conversion operation on this value (ECMA 9.6)">toUInt32</a>(exec) >> i2);
<a name="l01308"></a>01308 <span class="keywordflow">default</span>:
<a name="l01309"></a>01309 assert(!<span class="stringliteral">"ShiftNode: unhandled switch case"</span>);
<a name="l01310"></a>01310 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Undefined.html" title="Represents an primitive Undefined value.">Undefined</a>();
<a name="l01311"></a>01311 }
<a name="l01312"></a>01312 }
<a name="l01313"></a>01313
<a name="l01314"></a>01314 <span class="comment">// ----------------------------- RelationalNode -------------------------------</span>
<a name="l01315"></a>01315
<a name="l01316"></a>01316 <span class="keywordtype">void</span> RelationalNode::ref()
<a name="l01317"></a>01317 {
<a name="l01318"></a>01318 Node::ref();
<a name="l01319"></a>01319 <span class="keywordflow">if</span> ( expr1 )
<a name="l01320"></a>01320 expr1->ref();
<a name="l01321"></a>01321 <span class="keywordflow">if</span> ( expr2 )
<a name="l01322"></a>01322 expr2->ref();
<a name="l01323"></a>01323 }
<a name="l01324"></a>01324
<a name="l01325"></a>01325 <span class="keywordtype">bool</span> RelationalNode::deref()
<a name="l01326"></a>01326 {
<a name="l01327"></a>01327 <span class="keywordflow">if</span> ( expr1 && expr1->deref() )
<a name="l01328"></a>01328 <span class="keyword">delete</span> expr1;
<a name="l01329"></a>01329 <span class="keywordflow">if</span> ( expr2 && expr2->deref() )
<a name="l01330"></a>01330 <span class="keyword">delete</span> expr2;
<a name="l01331"></a>01331 <span class="keywordflow">return</span> Node::deref();
<a name="l01332"></a>01332 }
<a name="l01333"></a>01333
<a name="l01334"></a>01334 <span class="comment">// ECMA 11.8</span>
<a name="l01335"></a>01335 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> RelationalNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l01336"></a>01336 <span class="keyword"></span>{
<a name="l01337"></a>01337 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v1 = expr1->evaluate(exec);
<a name="l01338"></a>01338 KJS_CHECKEXCEPTIONVALUE
<a name="l01339"></a>01339 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v2 = expr2->evaluate(exec);
<a name="l01340"></a>01340 KJS_CHECKEXCEPTIONVALUE
<a name="l01341"></a>01341
<a name="l01342"></a>01342 <span class="keywordtype">bool</span> b;
<a name="l01343"></a>01343 <span class="keywordflow">if</span> (oper == OpLess || oper == OpGreaterEq) {
<a name="l01344"></a>01344 <span class="keywordtype">int</span> r = relation(exec, v1, v2);
<a name="l01345"></a>01345 <span class="keywordflow">if</span> (r < 0)
<a name="l01346"></a>01346 b = <span class="keyword">false</span>;
<a name="l01347"></a>01347 <span class="keywordflow">else</span>
<a name="l01348"></a>01348 b = (oper == OpLess) ? (r == 1) : (r == 0);
<a name="l01349"></a>01349 } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (oper == OpGreater || oper == OpLessEq) {
<a name="l01350"></a>01350 <span class="keywordtype">int</span> r = relation(exec, v2, v1);
<a name="l01351"></a>01351 <span class="keywordflow">if</span> (r < 0)
<a name="l01352"></a>01352 b = <span class="keyword">false</span>;
<a name="l01353"></a>01353 <span class="keywordflow">else</span>
<a name="l01354"></a>01354 b = (oper == OpGreater) ? (r == 1) : (r == 0);
<a name="l01355"></a>01355 } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (oper == OpIn) {
<a name="l01356"></a>01356 <span class="comment">// Is all of this OK for host objects?</span>
<a name="l01357"></a>01357 <span class="keywordflow">if</span> (v2.type() != ObjectType)
<a name="l01358"></a>01358 <span class="keywordflow">return</span> throwError(exec, TypeError,
<a name="l01359"></a>01359 <span class="stringliteral">"Value %s (result of expression %s) is not an object. Cannot be used with IN expression."</span>, v2, expr2);
<a name="l01360"></a>01360 <a class="code" href="classKJS_1_1Object.html" title="Represents an Object.">Object</a> o2(static_cast<ObjectImp*>(v2.imp()));
<a name="l01361"></a>01361 b = o2.hasProperty(exec,<a class="code" href="classKJS_1_1Identifier.html" title="Represents an Identifier for a Javascript object.">Identifier</a>(v1.<a class="code" href="classKJS_1_1Value.html#a8611b80d868cebf8dd4af2f966810874" title="Performs the ToString type conversion operation on this value (ECMA 9.8)">toString</a>(exec)));
<a name="l01362"></a>01362 } <span class="keywordflow">else</span> {
<a name="l01363"></a>01363 <span class="keywordflow">if</span> (v2.type() != ObjectType)
<a name="l01364"></a>01364 <span class="keywordflow">return</span> throwError(exec, TypeError,
<a name="l01365"></a>01365 <span class="stringliteral">"Value %s (result of expression %s) is not an object. Cannot be used with instanceof operator."</span>, v2, expr2);
<a name="l01366"></a>01366
<a name="l01367"></a>01367 <a class="code" href="classKJS_1_1Object.html" title="Represents an Object.">Object</a> o2(static_cast<ObjectImp*>(v2.imp()));
<a name="l01368"></a>01368 <span class="keywordflow">if</span> (!o2.implementsHasInstance()) {
<a name="l01369"></a>01369 <span class="comment">// According to the spec, only some types of objects "imlement" the [[HasInstance]] property.</span>
<a name="l01370"></a>01370 <span class="comment">// But we are supposed to throw an exception where the object does not "have" the [[HasInstance]]</span>
<a name="l01371"></a>01371 <span class="comment">// property. It seems that all object have the property, but not all implement it, so in this</span>
<a name="l01372"></a>01372 <span class="comment">// case we return false (consistent with mozilla)</span>
<a name="l01373"></a>01373 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Boolean.html" title="Represents an primitive Boolean value.">Boolean</a>(<span class="keyword">false</span>);
<a name="l01374"></a>01374 <span class="comment">// return throwError(exec, TypeError,</span>
<a name="l01375"></a>01375 <span class="comment">// "Object does not implement the [[HasInstance]] method." );</span>
<a name="l01376"></a>01376 }
<a name="l01377"></a>01377 <span class="keywordflow">return</span> o2.hasInstance(exec, v1);
<a name="l01378"></a>01378 }
<a name="l01379"></a>01379
<a name="l01380"></a>01380 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Boolean.html" title="Represents an primitive Boolean value.">Boolean</a>(b);
<a name="l01381"></a>01381 }
<a name="l01382"></a>01382
<a name="l01383"></a>01383 <span class="comment">// ----------------------------- EqualNode ------------------------------------</span>
<a name="l01384"></a>01384
<a name="l01385"></a>01385 <span class="keywordtype">void</span> EqualNode::ref()
<a name="l01386"></a>01386 {
<a name="l01387"></a>01387 Node::ref();
<a name="l01388"></a>01388 <span class="keywordflow">if</span> ( expr1 )
<a name="l01389"></a>01389 expr1->ref();
<a name="l01390"></a>01390 <span class="keywordflow">if</span> ( expr2 )
<a name="l01391"></a>01391 expr2->ref();
<a name="l01392"></a>01392 }
<a name="l01393"></a>01393
<a name="l01394"></a>01394 <span class="keywordtype">bool</span> EqualNode::deref()
<a name="l01395"></a>01395 {
<a name="l01396"></a>01396 <span class="keywordflow">if</span> ( expr1 && expr1->deref() )
<a name="l01397"></a>01397 <span class="keyword">delete</span> expr1;
<a name="l01398"></a>01398 <span class="keywordflow">if</span> ( expr2 && expr2->deref() )
<a name="l01399"></a>01399 <span class="keyword">delete</span> expr2;
<a name="l01400"></a>01400 <span class="keywordflow">return</span> Node::deref();
<a name="l01401"></a>01401 }
<a name="l01402"></a>01402
<a name="l01403"></a>01403 <span class="comment">// ECMA 11.9</span>
<a name="l01404"></a>01404 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> EqualNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l01405"></a>01405 <span class="keyword"></span>{
<a name="l01406"></a>01406 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v1 = expr1->evaluate(exec);
<a name="l01407"></a>01407 KJS_CHECKEXCEPTIONVALUE
<a name="l01408"></a>01408 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v2 = expr2->evaluate(exec);
<a name="l01409"></a>01409 KJS_CHECKEXCEPTIONVALUE
<a name="l01410"></a>01410
<a name="l01411"></a>01411 <span class="keywordtype">bool</span> result;
<a name="l01412"></a>01412 <span class="keywordflow">if</span> (oper == OpEqEq || oper == OpNotEq) {
<a name="l01413"></a>01413 <span class="comment">// == and !=</span>
<a name="l01414"></a>01414 <span class="keywordtype">bool</span> eq = equal(exec,v1, v2);
<a name="l01415"></a>01415 result = oper == OpEqEq ? eq : !eq;
<a name="l01416"></a>01416 } <span class="keywordflow">else</span> {
<a name="l01417"></a>01417 <span class="comment">// === and !==</span>
<a name="l01418"></a>01418 <span class="keywordtype">bool</span> eq = strictEqual(exec,v1, v2);
<a name="l01419"></a>01419 result = oper == OpStrEq ? eq : !eq;
<a name="l01420"></a>01420 }
<a name="l01421"></a>01421 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Boolean.html" title="Represents an primitive Boolean value.">Boolean</a>(result);
<a name="l01422"></a>01422 }
<a name="l01423"></a>01423
<a name="l01424"></a>01424 <span class="comment">// ----------------------------- BitOperNode ----------------------------------</span>
<a name="l01425"></a>01425
<a name="l01426"></a>01426 <span class="keywordtype">void</span> BitOperNode::ref()
<a name="l01427"></a>01427 {
<a name="l01428"></a>01428 Node::ref();
<a name="l01429"></a>01429 <span class="keywordflow">if</span> ( expr1 )
<a name="l01430"></a>01430 expr1->ref();
<a name="l01431"></a>01431 <span class="keywordflow">if</span> ( expr2 )
<a name="l01432"></a>01432 expr2->ref();
<a name="l01433"></a>01433 }
<a name="l01434"></a>01434
<a name="l01435"></a>01435 <span class="keywordtype">bool</span> BitOperNode::deref()
<a name="l01436"></a>01436 {
<a name="l01437"></a>01437 <span class="keywordflow">if</span> ( expr1 && expr1->deref() )
<a name="l01438"></a>01438 <span class="keyword">delete</span> expr1;
<a name="l01439"></a>01439 <span class="keywordflow">if</span> ( expr2 && expr2->deref() )
<a name="l01440"></a>01440 <span class="keyword">delete</span> expr2;
<a name="l01441"></a>01441 <span class="keywordflow">return</span> Node::deref();
<a name="l01442"></a>01442 }
<a name="l01443"></a>01443
<a name="l01444"></a>01444 <span class="comment">// ECMA 11.10</span>
<a name="l01445"></a>01445 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> BitOperNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l01446"></a>01446 <span class="keyword"></span>{
<a name="l01447"></a>01447 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v1 = expr1->evaluate(exec);
<a name="l01448"></a>01448 KJS_CHECKEXCEPTIONVALUE
<a name="l01449"></a>01449 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v2 = expr2->evaluate(exec);
<a name="l01450"></a>01450 KJS_CHECKEXCEPTIONVALUE
<a name="l01451"></a>01451 <span class="keywordtype">int</span> i1 = v1.<a class="code" href="classKJS_1_1Value.html#aa116929fe115defe059fc6e0ddf0d362" title="Performs the ToInt32 type conversion operation on this value (ECMA 9.5)">toInt32</a>(exec);
<a name="l01452"></a>01452 <span class="keywordtype">int</span> i2 = v2.toInt32(exec);
<a name="l01453"></a>01453 <span class="keywordtype">int</span> result;
<a name="l01454"></a>01454 <span class="keywordflow">if</span> (oper == OpBitAnd)
<a name="l01455"></a>01455 result = i1 & i2;
<a name="l01456"></a>01456 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (oper == OpBitXOr)
<a name="l01457"></a>01457 result = i1 ^ i2;
<a name="l01458"></a>01458 <span class="keywordflow">else</span>
<a name="l01459"></a>01459 result = i1 | i2;
<a name="l01460"></a>01460
<a name="l01461"></a>01461 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Number.html" title="Represents an primitive Number value.">Number</a>(result);
<a name="l01462"></a>01462 }
<a name="l01463"></a>01463
<a name="l01464"></a>01464 <span class="comment">// ----------------------------- BinaryLogicalNode ----------------------------</span>
<a name="l01465"></a>01465
<a name="l01466"></a>01466 <span class="keywordtype">void</span> BinaryLogicalNode::ref()
<a name="l01467"></a>01467 {
<a name="l01468"></a>01468 Node::ref();
<a name="l01469"></a>01469 <span class="keywordflow">if</span> ( expr1 )
<a name="l01470"></a>01470 expr1->ref();
<a name="l01471"></a>01471 <span class="keywordflow">if</span> ( expr2 )
<a name="l01472"></a>01472 expr2->ref();
<a name="l01473"></a>01473 }
<a name="l01474"></a>01474
<a name="l01475"></a>01475 <span class="keywordtype">bool</span> BinaryLogicalNode::deref()
<a name="l01476"></a>01476 {
<a name="l01477"></a>01477 <span class="keywordflow">if</span> ( expr1 && expr1->deref() )
<a name="l01478"></a>01478 <span class="keyword">delete</span> expr1;
<a name="l01479"></a>01479 <span class="keywordflow">if</span> ( expr2 && expr2->deref() )
<a name="l01480"></a>01480 <span class="keyword">delete</span> expr2;
<a name="l01481"></a>01481 <span class="keywordflow">return</span> Node::deref();
<a name="l01482"></a>01482 }
<a name="l01483"></a>01483
<a name="l01484"></a>01484 <span class="comment">// ECMA 11.11</span>
<a name="l01485"></a>01485 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> BinaryLogicalNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l01486"></a>01486 <span class="keyword"></span>{
<a name="l01487"></a>01487 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v1 = expr1->evaluate(exec);
<a name="l01488"></a>01488 KJS_CHECKEXCEPTIONVALUE
<a name="l01489"></a>01489 <span class="keywordtype">bool</span> b1 = v1.<a class="code" href="classKJS_1_1Value.html#abdcb3fc1afee9326af85eec35592f0b8" title="Performs the ToBoolean type conversion operation on this value (ECMA 9.2)">toBoolean</a>(exec);
<a name="l01490"></a>01490 <span class="keywordflow">if</span> ((!b1 && oper == OpAnd) || (b1 && oper == OpOr))
<a name="l01491"></a>01491 <span class="keywordflow">return</span> v1;
<a name="l01492"></a>01492
<a name="l01493"></a>01493 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v2 = expr2->evaluate(exec);
<a name="l01494"></a>01494 KJS_CHECKEXCEPTIONVALUE
<a name="l01495"></a>01495
<a name="l01496"></a>01496 <span class="keywordflow">return</span> v2;
<a name="l01497"></a>01497 }
<a name="l01498"></a>01498
<a name="l01499"></a>01499 <span class="comment">// ----------------------------- ConditionalNode ------------------------------</span>
<a name="l01500"></a>01500
<a name="l01501"></a>01501 <span class="keywordtype">void</span> ConditionalNode::ref()
<a name="l01502"></a>01502 {
<a name="l01503"></a>01503 Node::ref();
<a name="l01504"></a>01504 <span class="keywordflow">if</span> ( expr1 )
<a name="l01505"></a>01505 expr1->ref();
<a name="l01506"></a>01506 <span class="keywordflow">if</span> ( expr2 )
<a name="l01507"></a>01507 expr2->ref();
<a name="l01508"></a>01508 <span class="keywordflow">if</span> ( logical )
<a name="l01509"></a>01509 logical->ref();
<a name="l01510"></a>01510 }
<a name="l01511"></a>01511
<a name="l01512"></a>01512 <span class="keywordtype">bool</span> ConditionalNode::deref()
<a name="l01513"></a>01513 {
<a name="l01514"></a>01514 <span class="keywordflow">if</span> ( expr1 && expr1->deref() )
<a name="l01515"></a>01515 <span class="keyword">delete</span> expr1;
<a name="l01516"></a>01516 <span class="keywordflow">if</span> ( expr2 && expr2->deref() )
<a name="l01517"></a>01517 <span class="keyword">delete</span> expr2;
<a name="l01518"></a>01518 <span class="keywordflow">if</span> ( logical && logical->deref() )
<a name="l01519"></a>01519 <span class="keyword">delete</span> logical;
<a name="l01520"></a>01520 <span class="keywordflow">return</span> Node::deref();
<a name="l01521"></a>01521 }
<a name="l01522"></a>01522
<a name="l01523"></a>01523 <span class="comment">// ECMA 11.12</span>
<a name="l01524"></a>01524 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> ConditionalNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l01525"></a>01525 <span class="keyword"></span>{
<a name="l01526"></a>01526 <span class="keywordtype">bool</span> b = logical->toBoolean(exec);
<a name="l01527"></a>01527 KJS_CHECKEXCEPTIONVALUE
<a name="l01528"></a>01528
<a name="l01529"></a>01529 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v = b ? expr1->evaluate(exec) : expr2->evaluate(exec);
<a name="l01530"></a>01530 KJS_CHECKEXCEPTIONVALUE
<a name="l01531"></a>01531
<a name="l01532"></a>01532 <span class="keywordflow">return</span> v;
<a name="l01533"></a>01533 }
<a name="l01534"></a>01534
<a name="l01535"></a>01535 <span class="comment">// ----------------------------- AssignNode -----------------------------------</span>
<a name="l01536"></a>01536
<a name="l01537"></a>01537 <span class="keywordtype">void</span> AssignNode::ref()
<a name="l01538"></a>01538 {
<a name="l01539"></a>01539 Node::ref();
<a name="l01540"></a>01540 <span class="keywordflow">if</span> ( left )
<a name="l01541"></a>01541 left->ref();
<a name="l01542"></a>01542 <span class="keywordflow">if</span> ( expr )
<a name="l01543"></a>01543 expr->ref();
<a name="l01544"></a>01544 }
<a name="l01545"></a>01545
<a name="l01546"></a>01546 <span class="keywordtype">bool</span> AssignNode::deref()
<a name="l01547"></a>01547 {
<a name="l01548"></a>01548 <span class="keywordflow">if</span> ( left && left->deref() )
<a name="l01549"></a>01549 <span class="keyword">delete</span> left;
<a name="l01550"></a>01550 <span class="keywordflow">if</span> ( expr && expr->deref() )
<a name="l01551"></a>01551 <span class="keyword">delete</span> expr;
<a name="l01552"></a>01552 <span class="keywordflow">return</span> Node::deref();
<a name="l01553"></a>01553 }
<a name="l01554"></a>01554
<a name="l01555"></a>01555 <span class="comment">// ECMA 11.13</span>
<a name="l01556"></a>01556 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> AssignNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l01557"></a>01557 <span class="keyword"></span>{
<a name="l01558"></a>01558 <a class="code" href="classKJS_1_1Reference.html" title="Defines a Javascript reference.">Reference</a> l = left->evaluateReference(exec);
<a name="l01559"></a>01559 KJS_CHECKEXCEPTIONVALUE
<a name="l01560"></a>01560 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v;
<a name="l01561"></a>01561 <span class="keywordflow">if</span> (oper == OpEqual) {
<a name="l01562"></a>01562 v = expr->evaluate(exec);
<a name="l01563"></a>01563 KJS_CHECKEXCEPTIONVALUE
<a name="l01564"></a>01564 } <span class="keywordflow">else</span> {
<a name="l01565"></a>01565 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v1 = l.<a class="code" href="classKJS_1_1Reference.html#a0b221dd9c9eb8681f49adf852402dfb0" title="Performs the GetValue type conversion operation on this value (ECMA 8.7.1)">getValue</a>(exec);
<a name="l01566"></a>01566 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v2 = expr->evaluate(exec);
<a name="l01567"></a>01567 KJS_CHECKEXCEPTIONVALUE
<a name="l01568"></a>01568 <span class="keywordtype">int</span> i1;
<a name="l01569"></a>01569 <span class="keywordtype">int</span> i2;
<a name="l01570"></a>01570 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> ui;
<a name="l01571"></a>01571 <span class="keywordflow">switch</span> (oper) {
<a name="l01572"></a>01572 <span class="keywordflow">case</span> OpMultEq:
<a name="l01573"></a>01573 v = mult(exec, v1, v2, <span class="charliteral">'*'</span>);
<a name="l01574"></a>01574 <span class="keywordflow">break</span>;
<a name="l01575"></a>01575 <span class="keywordflow">case</span> OpDivEq:
<a name="l01576"></a>01576 v = mult(exec, v1, v2, <span class="charliteral">'/'</span>);
<a name="l01577"></a>01577 <span class="keywordflow">break</span>;
<a name="l01578"></a>01578 <span class="keywordflow">case</span> OpPlusEq:
<a name="l01579"></a>01579 v = add(exec, v1, v2, <span class="charliteral">'+'</span>);
<a name="l01580"></a>01580 <span class="keywordflow">break</span>;
<a name="l01581"></a>01581 <span class="keywordflow">case</span> OpMinusEq:
<a name="l01582"></a>01582 v = add(exec, v1, v2, <span class="charliteral">'-'</span>);
<a name="l01583"></a>01583 <span class="keywordflow">break</span>;
<a name="l01584"></a>01584 <span class="keywordflow">case</span> OpLShift:
<a name="l01585"></a>01585 i1 = v1.<a class="code" href="classKJS_1_1Value.html#aa116929fe115defe059fc6e0ddf0d362" title="Performs the ToInt32 type conversion operation on this value (ECMA 9.5)">toInt32</a>(exec);
<a name="l01586"></a>01586 i2 = v2.<a class="code" href="classKJS_1_1Value.html#aa116929fe115defe059fc6e0ddf0d362" title="Performs the ToInt32 type conversion operation on this value (ECMA 9.5)">toInt32</a>(exec);
<a name="l01587"></a>01587 v = <a class="code" href="classKJS_1_1Number.html" title="Represents an primitive Number value.">Number</a>(i1 << i2);
<a name="l01588"></a>01588 <span class="keywordflow">break</span>;
<a name="l01589"></a>01589 <span class="keywordflow">case</span> OpRShift:
<a name="l01590"></a>01590 i1 = v1.<a class="code" href="classKJS_1_1Value.html#aa116929fe115defe059fc6e0ddf0d362" title="Performs the ToInt32 type conversion operation on this value (ECMA 9.5)">toInt32</a>(exec);
<a name="l01591"></a>01591 i2 = v2.<a class="code" href="classKJS_1_1Value.html#aa116929fe115defe059fc6e0ddf0d362" title="Performs the ToInt32 type conversion operation on this value (ECMA 9.5)">toInt32</a>(exec);
<a name="l01592"></a>01592 v = <a class="code" href="classKJS_1_1Number.html" title="Represents an primitive Number value.">Number</a>(i1 >> i2);
<a name="l01593"></a>01593 <span class="keywordflow">break</span>;
<a name="l01594"></a>01594 <span class="keywordflow">case</span> OpURShift:
<a name="l01595"></a>01595 ui = v1.<a class="code" href="classKJS_1_1Value.html#a6aee2e9f36bd37afdfb2f0678f8cf69e" title="Performs the ToUInt32 type conversion operation on this value (ECMA 9.6)">toUInt32</a>(exec);
<a name="l01596"></a>01596 i2 = v2.<a class="code" href="classKJS_1_1Value.html#aa116929fe115defe059fc6e0ddf0d362" title="Performs the ToInt32 type conversion operation on this value (ECMA 9.5)">toInt32</a>(exec);
<a name="l01597"></a>01597 v = <a class="code" href="classKJS_1_1Number.html" title="Represents an primitive Number value.">Number</a>(ui >> i2);
<a name="l01598"></a>01598 <span class="keywordflow">break</span>;
<a name="l01599"></a>01599 <span class="keywordflow">case</span> OpAndEq:
<a name="l01600"></a>01600 i1 = v1.<a class="code" href="classKJS_1_1Value.html#aa116929fe115defe059fc6e0ddf0d362" title="Performs the ToInt32 type conversion operation on this value (ECMA 9.5)">toInt32</a>(exec);
<a name="l01601"></a>01601 i2 = v2.<a class="code" href="classKJS_1_1Value.html#aa116929fe115defe059fc6e0ddf0d362" title="Performs the ToInt32 type conversion operation on this value (ECMA 9.5)">toInt32</a>(exec);
<a name="l01602"></a>01602 v = <a class="code" href="classKJS_1_1Number.html" title="Represents an primitive Number value.">Number</a>(i1 & i2);
<a name="l01603"></a>01603 <span class="keywordflow">break</span>;
<a name="l01604"></a>01604 <span class="keywordflow">case</span> OpXOrEq:
<a name="l01605"></a>01605 i1 = v1.<a class="code" href="classKJS_1_1Value.html#aa116929fe115defe059fc6e0ddf0d362" title="Performs the ToInt32 type conversion operation on this value (ECMA 9.5)">toInt32</a>(exec);
<a name="l01606"></a>01606 i2 = v2.<a class="code" href="classKJS_1_1Value.html#aa116929fe115defe059fc6e0ddf0d362" title="Performs the ToInt32 type conversion operation on this value (ECMA 9.5)">toInt32</a>(exec);
<a name="l01607"></a>01607 v = <a class="code" href="classKJS_1_1Number.html" title="Represents an primitive Number value.">Number</a>(i1 ^ i2);
<a name="l01608"></a>01608 <span class="keywordflow">break</span>;
<a name="l01609"></a>01609 <span class="keywordflow">case</span> OpOrEq:
<a name="l01610"></a>01610 i1 = v1.<a class="code" href="classKJS_1_1Value.html#aa116929fe115defe059fc6e0ddf0d362" title="Performs the ToInt32 type conversion operation on this value (ECMA 9.5)">toInt32</a>(exec);
<a name="l01611"></a>01611 i2 = v2.<a class="code" href="classKJS_1_1Value.html#aa116929fe115defe059fc6e0ddf0d362" title="Performs the ToInt32 type conversion operation on this value (ECMA 9.5)">toInt32</a>(exec);
<a name="l01612"></a>01612 v = <a class="code" href="classKJS_1_1Number.html" title="Represents an primitive Number value.">Number</a>(i1 | i2);
<a name="l01613"></a>01613 <span class="keywordflow">break</span>;
<a name="l01614"></a>01614 <span class="keywordflow">case</span> OpModEq: {
<a name="l01615"></a>01615 <span class="keywordtype">double</span> d1 = v1.<a class="code" href="classKJS_1_1Value.html#abc006ad65a05568bbebe2c63604766b8" title="Performs the ToNumber type conversion operation on this value (ECMA 9.3)">toNumber</a>(exec);
<a name="l01616"></a>01616 <span class="keywordtype">double</span> d2 = v2.<a class="code" href="classKJS_1_1Value.html#abc006ad65a05568bbebe2c63604766b8" title="Performs the ToNumber type conversion operation on this value (ECMA 9.3)">toNumber</a>(exec);
<a name="l01617"></a>01617 v = <a class="code" href="classKJS_1_1Number.html" title="Represents an primitive Number value.">Number</a>(fmod(d1,d2));
<a name="l01618"></a>01618 }
<a name="l01619"></a>01619 <span class="keywordflow">break</span>;
<a name="l01620"></a>01620 <span class="keywordflow">default</span>:
<a name="l01621"></a>01621 v = <a class="code" href="classKJS_1_1Undefined.html" title="Represents an primitive Undefined value.">Undefined</a>();
<a name="l01622"></a>01622 }
<a name="l01623"></a>01623 };
<a name="l01624"></a>01624 l.<a class="code" href="classKJS_1_1Reference.html#a9a7b40644137d1a2a98a3f682c951735" title="Performs the PutValue type conversion operation on this value (ECMA 8.7.1)">putValue</a>(exec,v);
<a name="l01625"></a>01625
<a name="l01626"></a>01626 KJS_CHECKEXCEPTIONVALUE
<a name="l01627"></a>01627
<a name="l01628"></a>01628 <span class="keywordflow">return</span> v;
<a name="l01629"></a>01629 }
<a name="l01630"></a>01630
<a name="l01631"></a>01631 <span class="comment">// ----------------------------- CommaNode ------------------------------------</span>
<a name="l01632"></a>01632
<a name="l01633"></a>01633 <span class="keywordtype">void</span> CommaNode::ref()
<a name="l01634"></a>01634 {
<a name="l01635"></a>01635 Node::ref();
<a name="l01636"></a>01636 <span class="keywordflow">if</span> ( expr1 )
<a name="l01637"></a>01637 expr1->ref();
<a name="l01638"></a>01638 <span class="keywordflow">if</span> ( expr2 )
<a name="l01639"></a>01639 expr2->ref();
<a name="l01640"></a>01640 }
<a name="l01641"></a>01641
<a name="l01642"></a>01642 <span class="keywordtype">bool</span> CommaNode::deref()
<a name="l01643"></a>01643 {
<a name="l01644"></a>01644 <span class="keywordflow">if</span> ( expr1 && expr1->deref() )
<a name="l01645"></a>01645 <span class="keyword">delete</span> expr1;
<a name="l01646"></a>01646 <span class="keywordflow">if</span> ( expr2 && expr2->deref() )
<a name="l01647"></a>01647 <span class="keyword">delete</span> expr2;
<a name="l01648"></a>01648 <span class="keywordflow">return</span> Node::deref();
<a name="l01649"></a>01649 }
<a name="l01650"></a>01650
<a name="l01651"></a>01651 <span class="comment">// ECMA 11.14</span>
<a name="l01652"></a>01652 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> CommaNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l01653"></a>01653 <span class="keyword"></span>{
<a name="l01654"></a>01654 (void) expr1->evaluate(exec); <span class="comment">// ignore return value</span>
<a name="l01655"></a>01655 KJS_CHECKEXCEPTIONVALUE
<a name="l01656"></a>01656 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v = expr2->evaluate(exec);
<a name="l01657"></a>01657 KJS_CHECKEXCEPTIONVALUE
<a name="l01658"></a>01658
<a name="l01659"></a>01659 <span class="keywordflow">return</span> v;
<a name="l01660"></a>01660 }
<a name="l01661"></a>01661
<a name="l01662"></a>01662 <span class="comment">// ----------------------------- StatListNode ---------------------------------</span>
<a name="l01663"></a>01663
<a name="l01664"></a>01664 StatListNode::StatListNode(StatementNode *s)
<a name="l01665"></a>01665 : statement(s), list(this)
<a name="l01666"></a>01666 {
<a name="l01667"></a>01667 setLoc(s->firstLine(), s->lastLine(), s->code());
<a name="l01668"></a>01668 }
<a name="l01669"></a>01669
<a name="l01670"></a>01670 StatListNode::StatListNode(StatListNode *l, StatementNode *s)
<a name="l01671"></a>01671 : statement(s), list(l->list)
<a name="l01672"></a>01672 {
<a name="l01673"></a>01673 l->list = <span class="keyword">this</span>;
<a name="l01674"></a>01674 setLoc(l->firstLine(),s->lastLine(),l->code());
<a name="l01675"></a>01675 }
<a name="l01676"></a>01676
<a name="l01677"></a>01677 <span class="keywordtype">void</span> StatListNode::ref()
<a name="l01678"></a>01678 {
<a name="l01679"></a>01679 <span class="keywordflow">for</span> (StatListNode *n = <span class="keyword">this</span>; n; n = n->list) {
<a name="l01680"></a>01680 n->Node::ref();
<a name="l01681"></a>01681 <span class="keywordflow">if</span> (n->statement)
<a name="l01682"></a>01682 n->statement->ref();
<a name="l01683"></a>01683 }
<a name="l01684"></a>01684 }
<a name="l01685"></a>01685
<a name="l01686"></a>01686 <span class="keywordtype">bool</span> StatListNode::deref()
<a name="l01687"></a>01687 {
<a name="l01688"></a>01688 StatListNode *next;
<a name="l01689"></a>01689 <span class="keywordflow">for</span> (StatListNode *n = <span class="keyword">this</span>; n; n = next) {
<a name="l01690"></a>01690 next = n->list;
<a name="l01691"></a>01691 <span class="keywordflow">if</span> (n->statement && n->statement->deref())
<a name="l01692"></a>01692 <span class="keyword">delete</span> n->statement;
<a name="l01693"></a>01693 if (n != <span class="keyword">this</span> && n->Node::deref())
<a name="l01694"></a>01694 <span class="keyword">delete</span> n;
<a name="l01695"></a>01695 }
<a name="l01696"></a>01696 <span class="keywordflow">return</span> StatementNode::deref();
<a name="l01697"></a>01697 }
<a name="l01698"></a>01698
<a name="l01699"></a>01699 <span class="comment">// ECMA 12.1</span>
<a name="l01700"></a>01700 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> StatListNode::execute(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l01701"></a>01701 {
<a name="l01702"></a>01702 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> c = statement->execute(exec);
<a name="l01703"></a>01703 KJS_ABORTPOINT
<a name="l01704"></a>01704 <span class="keywordflow">if</span> (exec->hadException()) {
<a name="l01705"></a>01705 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> ex = exec->exception();
<a name="l01706"></a>01706 exec->clearException();
<a name="l01707"></a>01707 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a>(Throw, ex);
<a name="l01708"></a>01708 }
<a name="l01709"></a>01709
<a name="l01710"></a>01710 <span class="keywordflow">if</span> (c.complType() != Normal)
<a name="l01711"></a>01711 <span class="keywordflow">return</span> c;
<a name="l01712"></a>01712
<a name="l01713"></a>01713 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v = c.value();
<a name="l01714"></a>01714
<a name="l01715"></a>01715 <span class="keywordflow">for</span> (StatListNode *n = list; n; n = n->list) {
<a name="l01716"></a>01716 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> c2 = n->statement->execute(exec);
<a name="l01717"></a>01717 KJS_ABORTPOINT
<a name="l01718"></a>01718 <span class="keywordflow">if</span> (c2.complType() != Normal)
<a name="l01719"></a>01719 <span class="keywordflow">return</span> c2;
<a name="l01720"></a>01720
<a name="l01721"></a>01721 <span class="keywordflow">if</span> (exec->hadException()) {
<a name="l01722"></a>01722 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> ex = exec->exception();
<a name="l01723"></a>01723 exec->clearException();
<a name="l01724"></a>01724 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a>(Throw, ex);
<a name="l01725"></a>01725 }
<a name="l01726"></a>01726
<a name="l01727"></a>01727 <span class="keywordflow">if</span> (c2.isValueCompletion())
<a name="l01728"></a>01728 v = c2.value();
<a name="l01729"></a>01729 c = c2;
<a name="l01730"></a>01730 }
<a name="l01731"></a>01731
<a name="l01732"></a>01732 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a>(c.complType(), v, c.target());
<a name="l01733"></a>01733 }
<a name="l01734"></a>01734
<a name="l01735"></a>01735 <span class="keywordtype">void</span> StatListNode::processVarDecls(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l01736"></a>01736 {
<a name="l01737"></a>01737 <span class="keywordflow">for</span> (StatListNode *n = <span class="keyword">this</span>; n; n = n->list)
<a name="l01738"></a>01738 n->statement->processVarDecls(exec);
<a name="l01739"></a>01739 }
<a name="l01740"></a>01740
<a name="l01741"></a>01741 <span class="comment">// ----------------------------- AssignExprNode -------------------------------</span>
<a name="l01742"></a>01742
<a name="l01743"></a>01743 <span class="keywordtype">void</span> AssignExprNode::ref()
<a name="l01744"></a>01744 {
<a name="l01745"></a>01745 Node::ref();
<a name="l01746"></a>01746 <span class="keywordflow">if</span> ( expr )
<a name="l01747"></a>01747 expr->ref();
<a name="l01748"></a>01748 }
<a name="l01749"></a>01749
<a name="l01750"></a>01750 <span class="keywordtype">bool</span> AssignExprNode::deref()
<a name="l01751"></a>01751 {
<a name="l01752"></a>01752 <span class="keywordflow">if</span> ( expr && expr->deref() )
<a name="l01753"></a>01753 <span class="keyword">delete</span> expr;
<a name="l01754"></a>01754 <span class="keywordflow">return</span> Node::deref();
<a name="l01755"></a>01755 }
<a name="l01756"></a>01756
<a name="l01757"></a>01757 <span class="comment">// ECMA 12.2</span>
<a name="l01758"></a>01758 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> AssignExprNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l01759"></a>01759 <span class="keyword"></span>{
<a name="l01760"></a>01760 <span class="keywordflow">return</span> expr->evaluate(exec);
<a name="l01761"></a>01761 }
<a name="l01762"></a>01762
<a name="l01763"></a>01763 <span class="comment">// ----------------------------- VarDeclNode ----------------------------------</span>
<a name="l01764"></a>01764
<a name="l01765"></a>01765 VarDeclNode::VarDeclNode(<span class="keyword">const</span> <a class="code" href="classKJS_1_1Identifier.html" title="Represents an Identifier for a Javascript object.">Identifier</a> &<span class="keywordtype">id</span>, AssignExprNode *in, Type t)
<a name="l01766"></a>01766 : varType(t), ident(id), init(in)
<a name="l01767"></a>01767 {
<a name="l01768"></a>01768 }
<a name="l01769"></a>01769
<a name="l01770"></a>01770 <span class="keywordtype">void</span> VarDeclNode::ref()
<a name="l01771"></a>01771 {
<a name="l01772"></a>01772 Node::ref();
<a name="l01773"></a>01773 <span class="keywordflow">if</span> ( init )
<a name="l01774"></a>01774 init->ref();
<a name="l01775"></a>01775 }
<a name="l01776"></a>01776
<a name="l01777"></a>01777 <span class="keywordtype">bool</span> VarDeclNode::deref()
<a name="l01778"></a>01778 {
<a name="l01779"></a>01779 <span class="keywordflow">if</span> ( init && init->deref() )
<a name="l01780"></a>01780 <span class="keyword">delete</span> init;
<a name="l01781"></a>01781 <span class="keywordflow">return</span> Node::deref();
<a name="l01782"></a>01782 }
<a name="l01783"></a>01783
<a name="l01784"></a>01784 <span class="comment">// ECMA 12.2</span>
<a name="l01785"></a>01785 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> VarDeclNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l01786"></a>01786 <span class="keyword"></span>{
<a name="l01787"></a>01787 <a class="code" href="classKJS_1_1Object.html" title="Represents an Object.">Object</a> variable = <a class="code" href="classKJS_1_1Object.html#ab12ea86cb49e21ea6c5547507f8d128e" title="Converts a Value into an Object.">Object::dynamicCast</a>(exec-><a class="code" href="classKJS_1_1ExecState.html#aa2835385776b40626e4cf06887c0550e" title="Returns the execution context associated with this execution state.">context</a>().imp()->variableObject());
<a name="l01788"></a>01788
<a name="l01789"></a>01789 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> val;
<a name="l01790"></a>01790 <span class="keywordflow">if</span> (init) {
<a name="l01791"></a>01791 val = init->evaluate(exec);
<a name="l01792"></a>01792 KJS_CHECKEXCEPTIONVALUE
<a name="l01793"></a>01793 } <span class="keywordflow">else</span> {
<a name="l01794"></a>01794 <span class="comment">// ### check attributes? reuse check done in processVarDecls()?</span>
<a name="l01795"></a>01795 <span class="keywordflow">if</span> (variable.imp()->getDirect(ident)) <span class="comment">// already declared ?</span>
<a name="l01796"></a>01796 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a>();
<a name="l01797"></a>01797 val = <a class="code" href="classKJS_1_1Undefined.html" title="Represents an primitive Undefined value.">Undefined</a>();
<a name="l01798"></a>01798 }
<a name="l01799"></a>01799
<a name="l01800"></a>01800 <span class="preprocessor">#ifdef KJS_VERBOSE</span>
<a name="l01801"></a>01801 <span class="preprocessor"></span> printInfo(exec,(<a class="code" href="classKJS_1_1UString.html" title="Unicode string class.">UString</a>(<span class="stringliteral">"new variable "</span>)+ident.ustring()).cstring().c_str(),val);
<a name="l01802"></a>01802 <span class="preprocessor">#endif</span>
<a name="l01803"></a>01803 <span class="preprocessor"></span> <span class="comment">// We use Internal to bypass all checks in derived objects, e.g. so that</span>
<a name="l01804"></a>01804 <span class="comment">// "var location" creates a dynamic property instead of activating window.location.</span>
<a name="l01805"></a>01805 <span class="keywordtype">int</span> flags = Internal;
<a name="l01806"></a>01806 <span class="keywordflow">if</span> (exec-><a class="code" href="classKJS_1_1ExecState.html#aa2835385776b40626e4cf06887c0550e" title="Returns the execution context associated with this execution state.">context</a>().imp()->codeType() != EvalCode)
<a name="l01807"></a>01807 flags |= DontDelete;
<a name="l01808"></a>01808 <span class="keywordflow">if</span> (varType == VarDeclNode::Constant)
<a name="l01809"></a>01809 flags |= ReadOnly;
<a name="l01810"></a>01810 variable.<a class="code" href="classKJS_1_1Object.html#aa67ec5ebaa19921db0fec1688378da2e" title="Sets the specified property.">put</a>(exec, ident, val, flags);
<a name="l01811"></a>01811
<a name="l01812"></a>01812 <span class="comment">// the spec wants us to return the name of the identifier here</span>
<a name="l01813"></a>01813 <span class="comment">// but we'll save the construction and copying as the return</span>
<a name="l01814"></a>01814 <span class="comment">// value isn't used by the caller</span>
<a name="l01815"></a>01815 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a>();
<a name="l01816"></a>01816 }
<a name="l01817"></a>01817
<a name="l01818"></a>01818 <span class="keywordtype">void</span> VarDeclNode::processVarDecls(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l01819"></a>01819 {
<a name="l01820"></a>01820 <a class="code" href="classKJS_1_1Object.html" title="Represents an Object.">Object</a> variable = exec-><a class="code" href="classKJS_1_1ExecState.html#aa2835385776b40626e4cf06887c0550e" title="Returns the execution context associated with this execution state.">context</a>().<a class="code" href="classKJS_1_1Context.html#a7d685607529ee43ab8c581cb778e129c" title="Returns the variable object for the execution context.">variableObject</a>();
<a name="l01821"></a>01821 <span class="comment">// ### use getDirect()? Check attributes?</span>
<a name="l01822"></a>01822 <span class="comment">// ### avoid duplication with actions performed in evaluate()?</span>
<a name="l01823"></a>01823 <span class="keywordflow">if</span> ( !variable.<a class="code" href="classKJS_1_1Object.html#a8c0f1def86d09e32d8df1e27c3201922" title="Checks to see whether the object (or any object in it's prototype chain) has a property with the spec...">hasProperty</a>( exec, ident ) ) { <span class="comment">// already declared ?</span>
<a name="l01824"></a>01824 <span class="keywordtype">int</span> flags = None;
<a name="l01825"></a>01825 <span class="keywordflow">if</span> (exec->_context->codeType() != EvalCode)
<a name="l01826"></a>01826 flags |= DontDelete;
<a name="l01827"></a>01827 <span class="keywordflow">if</span> (varType == VarDeclNode::Constant)
<a name="l01828"></a>01828 flags |= ReadOnly;
<a name="l01829"></a>01829 <span class="comment">// TODO: check for forbidden redeclaration of consts</span>
<a name="l01830"></a>01830 variable.<a class="code" href="classKJS_1_1Object.html#aa67ec5ebaa19921db0fec1688378da2e" title="Sets the specified property.">put</a>(exec, ident, <a class="code" href="classKJS_1_1Undefined.html" title="Represents an primitive Undefined value.">Undefined</a>(), flags);
<a name="l01831"></a>01831 }
<a name="l01832"></a>01832 }
<a name="l01833"></a>01833
<a name="l01834"></a>01834 <span class="comment">// ----------------------------- VarDeclListNode ------------------------------</span>
<a name="l01835"></a>01835
<a name="l01836"></a>01836 <span class="keywordtype">void</span> VarDeclListNode::ref()
<a name="l01837"></a>01837 {
<a name="l01838"></a>01838 <span class="keywordflow">for</span> (VarDeclListNode *n = <span class="keyword">this</span>; n; n = n->list) {
<a name="l01839"></a>01839 n->Node::ref();
<a name="l01840"></a>01840 <span class="keywordflow">if</span> (n->var)
<a name="l01841"></a>01841 n->var->ref();
<a name="l01842"></a>01842 }
<a name="l01843"></a>01843 }
<a name="l01844"></a>01844
<a name="l01845"></a>01845 <span class="keywordtype">bool</span> VarDeclListNode::deref()
<a name="l01846"></a>01846 {
<a name="l01847"></a>01847 VarDeclListNode *next;
<a name="l01848"></a>01848 <span class="keywordflow">for</span> (VarDeclListNode *n = <span class="keyword">this</span>; n; n = next) {
<a name="l01849"></a>01849 next = n->list;
<a name="l01850"></a>01850 <span class="keywordflow">if</span> (n->var && n->var->deref())
<a name="l01851"></a>01851 <span class="keyword">delete</span> n->var;
<a name="l01852"></a>01852 if (n != <span class="keyword">this</span> && n->Node::deref())
<a name="l01853"></a>01853 <span class="keyword">delete</span> n;
<a name="l01854"></a>01854 }
<a name="l01855"></a>01855 <span class="keywordflow">return</span> Node::deref();
<a name="l01856"></a>01856 }
<a name="l01857"></a>01857
<a name="l01858"></a>01858
<a name="l01859"></a>01859 <span class="comment">// ECMA 12.2</span>
<a name="l01860"></a>01860 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> VarDeclListNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l01861"></a>01861 <span class="keyword"></span>{
<a name="l01862"></a>01862 <span class="keywordflow">for</span> (<span class="keyword">const</span> VarDeclListNode *n = <span class="keyword">this</span>; n; n = n->list) {
<a name="l01863"></a>01863 (void)n->var->evaluate(exec);
<a name="l01864"></a>01864 KJS_CHECKEXCEPTIONVALUE
<a name="l01865"></a>01865 }
<a name="l01866"></a>01866 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Undefined.html" title="Represents an primitive Undefined value.">Undefined</a>();
<a name="l01867"></a>01867 }
<a name="l01868"></a>01868
<a name="l01869"></a>01869 <span class="keywordtype">void</span> VarDeclListNode::processVarDecls(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l01870"></a>01870 {
<a name="l01871"></a>01871 <span class="keywordflow">for</span> (VarDeclListNode *n = <span class="keyword">this</span>; n; n = n->list)
<a name="l01872"></a>01872 n->var->processVarDecls(exec);
<a name="l01873"></a>01873 }
<a name="l01874"></a>01874
<a name="l01875"></a>01875 <span class="comment">// ----------------------------- VarStatementNode -----------------------------</span>
<a name="l01876"></a>01876
<a name="l01877"></a>01877 <span class="keywordtype">void</span> VarStatementNode::ref()
<a name="l01878"></a>01878 {
<a name="l01879"></a>01879 StatementNode::ref();
<a name="l01880"></a>01880 <span class="keywordflow">if</span> ( list )
<a name="l01881"></a>01881 list->ref();
<a name="l01882"></a>01882 }
<a name="l01883"></a>01883
<a name="l01884"></a>01884 <span class="keywordtype">bool</span> VarStatementNode::deref()
<a name="l01885"></a>01885 {
<a name="l01886"></a>01886 <span class="keywordflow">if</span> ( list && list->deref() )
<a name="l01887"></a>01887 <span class="keyword">delete</span> list;
<a name="l01888"></a>01888 <span class="keywordflow">return</span> StatementNode::deref();
<a name="l01889"></a>01889 }
<a name="l01890"></a>01890
<a name="l01891"></a>01891 <span class="comment">// ECMA 12.2</span>
<a name="l01892"></a>01892 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> VarStatementNode::execute(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l01893"></a>01893 {
<a name="l01894"></a>01894 KJS_BREAKPOINT;
<a name="l01895"></a>01895
<a name="l01896"></a>01896 (void) list->evaluate(exec);
<a name="l01897"></a>01897 KJS_CHECKEXCEPTION
<a name="l01898"></a>01898
<a name="l01899"></a>01899 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a>(Normal);
<a name="l01900"></a>01900 }
<a name="l01901"></a>01901
<a name="l01902"></a>01902 <span class="keywordtype">void</span> VarStatementNode::processVarDecls(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l01903"></a>01903 {
<a name="l01904"></a>01904 list->processVarDecls(exec);
<a name="l01905"></a>01905 }
<a name="l01906"></a>01906
<a name="l01907"></a>01907 <span class="comment">// ----------------------------- BlockNode ------------------------------------</span>
<a name="l01908"></a>01908
<a name="l01909"></a>01909 BlockNode::BlockNode(SourceElementsNode *s)
<a name="l01910"></a>01910 {
<a name="l01911"></a>01911 <span class="keywordflow">if</span> (s) {
<a name="l01912"></a>01912 source = s->elements;
<a name="l01913"></a>01913 s->elements = 0;
<a name="l01914"></a>01914 setLoc(s->firstLine(), s->lastLine(), s->code());
<a name="l01915"></a>01915 } <span class="keywordflow">else</span> {
<a name="l01916"></a>01916 source = 0;
<a name="l01917"></a>01917 }
<a name="l01918"></a>01918 }
<a name="l01919"></a>01919
<a name="l01920"></a>01920 <span class="keywordtype">void</span> BlockNode::ref()
<a name="l01921"></a>01921 {
<a name="l01922"></a>01922 StatementNode::ref();
<a name="l01923"></a>01923 <span class="keywordflow">if</span> ( source )
<a name="l01924"></a>01924 source->ref();
<a name="l01925"></a>01925 }
<a name="l01926"></a>01926
<a name="l01927"></a>01927 <span class="keywordtype">bool</span> BlockNode::deref()
<a name="l01928"></a>01928 {
<a name="l01929"></a>01929 <span class="keywordflow">if</span> ( source && source->deref() )
<a name="l01930"></a>01930 <span class="keyword">delete</span> source;
<a name="l01931"></a>01931 <span class="keywordflow">return</span> StatementNode::deref();
<a name="l01932"></a>01932 }
<a name="l01933"></a>01933
<a name="l01934"></a>01934 <span class="comment">// ECMA 12.1</span>
<a name="l01935"></a>01935 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> BlockNode::execute(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l01936"></a>01936 {
<a name="l01937"></a>01937 <span class="keywordflow">if</span> (!source)
<a name="l01938"></a>01938 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a>(Normal);
<a name="l01939"></a>01939
<a name="l01940"></a>01940 source->processFuncDecl(exec);
<a name="l01941"></a>01941
<a name="l01942"></a>01942 <span class="keywordflow">return</span> source->execute(exec);
<a name="l01943"></a>01943 }
<a name="l01944"></a>01944
<a name="l01945"></a>01945 <span class="keywordtype">void</span> BlockNode::processVarDecls(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l01946"></a>01946 {
<a name="l01947"></a>01947 <span class="keywordflow">if</span> (source)
<a name="l01948"></a>01948 source->processVarDecls(exec);
<a name="l01949"></a>01949 }
<a name="l01950"></a>01950
<a name="l01951"></a>01951 <span class="comment">// ----------------------------- EmptyStatementNode ---------------------------</span>
<a name="l01952"></a>01952
<a name="l01953"></a>01953 <span class="comment">// ECMA 12.3</span>
<a name="l01954"></a>01954 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> EmptyStatementNode::execute(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> * <span class="comment">/*exec*/</span>)
<a name="l01955"></a>01955 {
<a name="l01956"></a>01956 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a>(Normal);
<a name="l01957"></a>01957 }
<a name="l01958"></a>01958
<a name="l01959"></a>01959 <span class="comment">// ----------------------------- ExprStatementNode ----------------------------</span>
<a name="l01960"></a>01960
<a name="l01961"></a>01961 <span class="keywordtype">void</span> ExprStatementNode::ref()
<a name="l01962"></a>01962 {
<a name="l01963"></a>01963 StatementNode::ref();
<a name="l01964"></a>01964 <span class="keywordflow">if</span> ( expr )
<a name="l01965"></a>01965 expr->ref();
<a name="l01966"></a>01966 }
<a name="l01967"></a>01967
<a name="l01968"></a>01968 <span class="keywordtype">bool</span> ExprStatementNode::deref()
<a name="l01969"></a>01969 {
<a name="l01970"></a>01970 <span class="keywordflow">if</span> ( expr && expr->deref() )
<a name="l01971"></a>01971 <span class="keyword">delete</span> expr;
<a name="l01972"></a>01972 <span class="keywordflow">return</span> StatementNode::deref();
<a name="l01973"></a>01973 }
<a name="l01974"></a>01974
<a name="l01975"></a>01975 <span class="comment">// ECMA 12.4</span>
<a name="l01976"></a>01976 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> ExprStatementNode::execute(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l01977"></a>01977 {
<a name="l01978"></a>01978 KJS_BREAKPOINT;
<a name="l01979"></a>01979
<a name="l01980"></a>01980 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v = expr->evaluate(exec);
<a name="l01981"></a>01981 KJS_CHECKEXCEPTION
<a name="l01982"></a>01982
<a name="l01983"></a>01983 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a>(Normal, v);
<a name="l01984"></a>01984 }
<a name="l01985"></a>01985
<a name="l01986"></a>01986 <span class="comment">// ----------------------------- IfNode ---------------------------------------</span>
<a name="l01987"></a>01987
<a name="l01988"></a>01988 <span class="keywordtype">void</span> IfNode::ref()
<a name="l01989"></a>01989 {
<a name="l01990"></a>01990 StatementNode::ref();
<a name="l01991"></a>01991 <span class="keywordflow">if</span> ( statement1 )
<a name="l01992"></a>01992 statement1->ref();
<a name="l01993"></a>01993 <span class="keywordflow">if</span> ( statement2 )
<a name="l01994"></a>01994 statement2->ref();
<a name="l01995"></a>01995 <span class="keywordflow">if</span> ( expr )
<a name="l01996"></a>01996 expr->ref();
<a name="l01997"></a>01997 }
<a name="l01998"></a>01998
<a name="l01999"></a>01999 <span class="keywordtype">bool</span> IfNode::deref()
<a name="l02000"></a>02000 {
<a name="l02001"></a>02001 <span class="keywordflow">if</span> ( statement1 && statement1->deref() )
<a name="l02002"></a>02002 <span class="keyword">delete</span> statement1;
<a name="l02003"></a>02003 <span class="keywordflow">if</span> ( statement2 && statement2->deref() )
<a name="l02004"></a>02004 <span class="keyword">delete</span> statement2;
<a name="l02005"></a>02005 <span class="keywordflow">if</span> ( expr && expr->deref() )
<a name="l02006"></a>02006 <span class="keyword">delete</span> expr;
<a name="l02007"></a>02007 <span class="keywordflow">return</span> StatementNode::deref();
<a name="l02008"></a>02008 }
<a name="l02009"></a>02009
<a name="l02010"></a>02010 <span class="comment">// ECMA 12.5</span>
<a name="l02011"></a>02011 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> IfNode::execute(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l02012"></a>02012 {
<a name="l02013"></a>02013 KJS_BREAKPOINT;
<a name="l02014"></a>02014
<a name="l02015"></a>02015 assert(expr);
<a name="l02016"></a>02016 <span class="keywordtype">bool</span> b = expr->toBoolean(exec);
<a name="l02017"></a>02017 KJS_CHECKEXCEPTION
<a name="l02018"></a>02018
<a name="l02019"></a>02019 <span class="comment">// if ... then</span>
<a name="l02020"></a>02020 <span class="keywordflow">if</span> (b)
<a name="l02021"></a>02021 <span class="keywordflow">return</span> statement1->execute(exec);
<a name="l02022"></a>02022
<a name="l02023"></a>02023 <span class="comment">// no else</span>
<a name="l02024"></a>02024 <span class="keywordflow">if</span> (!statement2)
<a name="l02025"></a>02025 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a>(Normal);
<a name="l02026"></a>02026
<a name="l02027"></a>02027 <span class="comment">// else</span>
<a name="l02028"></a>02028 <span class="keywordflow">return</span> statement2->execute(exec);
<a name="l02029"></a>02029 }
<a name="l02030"></a>02030
<a name="l02031"></a>02031 <span class="keywordtype">void</span> IfNode::processVarDecls(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l02032"></a>02032 {
<a name="l02033"></a>02033 statement1->processVarDecls(exec);
<a name="l02034"></a>02034
<a name="l02035"></a>02035 <span class="keywordflow">if</span> (statement2)
<a name="l02036"></a>02036 statement2->processVarDecls(exec);
<a name="l02037"></a>02037 }
<a name="l02038"></a>02038
<a name="l02039"></a>02039 <span class="comment">// ----------------------------- DoWhileNode ----------------------------------</span>
<a name="l02040"></a>02040
<a name="l02041"></a>02041 <span class="keywordtype">void</span> DoWhileNode::ref()
<a name="l02042"></a>02042 {
<a name="l02043"></a>02043 StatementNode::ref();
<a name="l02044"></a>02044 <span class="keywordflow">if</span> ( statement )
<a name="l02045"></a>02045 statement->ref();
<a name="l02046"></a>02046 <span class="keywordflow">if</span> ( expr )
<a name="l02047"></a>02047 expr->ref();
<a name="l02048"></a>02048 }
<a name="l02049"></a>02049
<a name="l02050"></a>02050 <span class="keywordtype">bool</span> DoWhileNode::deref()
<a name="l02051"></a>02051 {
<a name="l02052"></a>02052 <span class="keywordflow">if</span> ( statement && statement->deref() )
<a name="l02053"></a>02053 <span class="keyword">delete</span> statement;
<a name="l02054"></a>02054 <span class="keywordflow">if</span> ( expr && expr->deref() )
<a name="l02055"></a>02055 <span class="keyword">delete</span> expr;
<a name="l02056"></a>02056 <span class="keywordflow">return</span> StatementNode::deref();
<a name="l02057"></a>02057 }
<a name="l02058"></a>02058
<a name="l02059"></a>02059 <span class="comment">// ECMA 12.6.1</span>
<a name="l02060"></a>02060 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> DoWhileNode::execute(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l02061"></a>02061 {
<a name="l02062"></a>02062 KJS_BREAKPOINT;
<a name="l02063"></a>02063
<a name="l02064"></a>02064 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> c;
<a name="l02065"></a>02065 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> value;
<a name="l02066"></a>02066 <span class="keywordtype">bool</span> b;
<a name="l02067"></a>02067
<a name="l02068"></a>02068 <span class="keywordflow">do</span> {
<a name="l02069"></a>02069 <span class="comment">// bail out on error</span>
<a name="l02070"></a>02070 KJS_CHECKEXCEPTION
<a name="l02071"></a>02071
<a name="l02072"></a>02072 exec-><a class="code" href="classKJS_1_1ExecState.html#aa2835385776b40626e4cf06887c0550e" title="Returns the execution context associated with this execution state.">context</a>().imp()->seenLabels()->pushIteration();
<a name="l02073"></a>02073 c = statement->execute(exec);
<a name="l02074"></a>02074 exec-><a class="code" href="classKJS_1_1ExecState.html#aa2835385776b40626e4cf06887c0550e" title="Returns the execution context associated with this execution state.">context</a>().imp()->seenLabels()->popIteration();
<a name="l02075"></a>02075 <span class="keywordflow">if</span> (!((c.complType() == Continue) && ls.contains(c.target()))) {
<a name="l02076"></a>02076 <span class="keywordflow">if</span> ((c.complType() == Break) && ls.contains(c.target()))
<a name="l02077"></a>02077 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a>(Normal, value);
<a name="l02078"></a>02078 <span class="keywordflow">if</span> (c.complType() != Normal)
<a name="l02079"></a>02079 <span class="keywordflow">return</span> c;
<a name="l02080"></a>02080 }
<a name="l02081"></a>02081 b = expr-><a class="code" href="classKJS_1_1Value.html#abdcb3fc1afee9326af85eec35592f0b8" title="Performs the ToBoolean type conversion operation on this value (ECMA 9.2)">toBoolean</a>(exec);
<a name="l02082"></a>02082 KJS_CHECKEXCEPTION
<a name="l02083"></a>02083 } <span class="keywordflow">while</span> (b);
<a name="l02084"></a>02084
<a name="l02085"></a>02085 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a>(Normal, value);
<a name="l02086"></a>02086 }
<a name="l02087"></a>02087
<a name="l02088"></a>02088 <span class="keywordtype">void</span> DoWhileNode::processVarDecls(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l02089"></a>02089 {
<a name="l02090"></a>02090 statement->processVarDecls(exec);
<a name="l02091"></a>02091 }
<a name="l02092"></a>02092
<a name="l02093"></a>02093 <span class="comment">// ----------------------------- WhileNode ------------------------------------</span>
<a name="l02094"></a>02094
<a name="l02095"></a>02095 <span class="keywordtype">void</span> WhileNode::ref()
<a name="l02096"></a>02096 {
<a name="l02097"></a>02097 StatementNode::ref();
<a name="l02098"></a>02098 <span class="keywordflow">if</span> ( statement )
<a name="l02099"></a>02099 statement->ref();
<a name="l02100"></a>02100 <span class="keywordflow">if</span> ( expr )
<a name="l02101"></a>02101 expr->ref();
<a name="l02102"></a>02102 }
<a name="l02103"></a>02103
<a name="l02104"></a>02104 <span class="keywordtype">bool</span> WhileNode::deref()
<a name="l02105"></a>02105 {
<a name="l02106"></a>02106 <span class="keywordflow">if</span> ( statement && statement->deref() )
<a name="l02107"></a>02107 <span class="keyword">delete</span> statement;
<a name="l02108"></a>02108 <span class="keywordflow">if</span> ( expr && expr->deref() )
<a name="l02109"></a>02109 <span class="keyword">delete</span> expr;
<a name="l02110"></a>02110 <span class="keywordflow">return</span> StatementNode::deref();
<a name="l02111"></a>02111 }
<a name="l02112"></a>02112
<a name="l02113"></a>02113 <span class="comment">// ECMA 12.6.2</span>
<a name="l02114"></a>02114 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> WhileNode::execute(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l02115"></a>02115 {
<a name="l02116"></a>02116 KJS_BREAKPOINT;
<a name="l02117"></a>02117
<a name="l02118"></a>02118 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> c;
<a name="l02119"></a>02119 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> value;
<a name="l02120"></a>02120
<a name="l02121"></a>02121 <span class="keywordflow">while</span> (1) {
<a name="l02122"></a>02122 <span class="keywordtype">bool</span> b = expr-><a class="code" href="classKJS_1_1Value.html#abdcb3fc1afee9326af85eec35592f0b8" title="Performs the ToBoolean type conversion operation on this value (ECMA 9.2)">toBoolean</a>(exec);
<a name="l02123"></a>02123 KJS_CHECKEXCEPTION
<a name="l02124"></a>02124
<a name="l02125"></a>02125 <span class="comment">// bail out on error</span>
<a name="l02126"></a>02126 KJS_CHECKEXCEPTION
<a name="l02127"></a>02127
<a name="l02128"></a>02128 <span class="keywordflow">if</span> (!b)
<a name="l02129"></a>02129 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a>(Normal, value);
<a name="l02130"></a>02130
<a name="l02131"></a>02131 exec-><a class="code" href="classKJS_1_1ExecState.html#aa2835385776b40626e4cf06887c0550e" title="Returns the execution context associated with this execution state.">context</a>().imp()->seenLabels()->pushIteration();
<a name="l02132"></a>02132 c = statement->execute(exec);
<a name="l02133"></a>02133 exec-><a class="code" href="classKJS_1_1ExecState.html#aa2835385776b40626e4cf06887c0550e" title="Returns the execution context associated with this execution state.">context</a>().imp()->seenLabels()->popIteration();
<a name="l02134"></a>02134 <span class="keywordflow">if</span> (c.isValueCompletion())
<a name="l02135"></a>02135 value = c.value();
<a name="l02136"></a>02136
<a name="l02137"></a>02137 <span class="keywordflow">if</span> ((c.complType() == Continue) && ls.contains(c.target()))
<a name="l02138"></a>02138 <span class="keywordflow">continue</span>;
<a name="l02139"></a>02139 <span class="keywordflow">if</span> ((c.complType() == Break) && ls.contains(c.target()))
<a name="l02140"></a>02140 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a>(Normal, value);
<a name="l02141"></a>02141 <span class="keywordflow">if</span> (c.complType() != Normal)
<a name="l02142"></a>02142 <span class="keywordflow">return</span> c;
<a name="l02143"></a>02143 }
<a name="l02144"></a>02144 }
<a name="l02145"></a>02145
<a name="l02146"></a>02146 <span class="keywordtype">void</span> WhileNode::processVarDecls(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l02147"></a>02147 {
<a name="l02148"></a>02148 statement->processVarDecls(exec);
<a name="l02149"></a>02149 }
<a name="l02150"></a>02150
<a name="l02151"></a>02151 <span class="comment">// ----------------------------- ForNode --------------------------------------</span>
<a name="l02152"></a>02152
<a name="l02153"></a>02153 <span class="keywordtype">void</span> ForNode::ref()
<a name="l02154"></a>02154 {
<a name="l02155"></a>02155 StatementNode::ref();
<a name="l02156"></a>02156 <span class="keywordflow">if</span> ( statement )
<a name="l02157"></a>02157 statement->ref();
<a name="l02158"></a>02158 <span class="keywordflow">if</span> ( expr1 )
<a name="l02159"></a>02159 expr1->ref();
<a name="l02160"></a>02160 <span class="keywordflow">if</span> ( expr2 )
<a name="l02161"></a>02161 expr2->ref();
<a name="l02162"></a>02162 <span class="keywordflow">if</span> ( expr3 )
<a name="l02163"></a>02163 expr3->ref();
<a name="l02164"></a>02164 }
<a name="l02165"></a>02165
<a name="l02166"></a>02166 <span class="keywordtype">bool</span> ForNode::deref()
<a name="l02167"></a>02167 {
<a name="l02168"></a>02168 <span class="keywordflow">if</span> ( statement && statement->deref() )
<a name="l02169"></a>02169 <span class="keyword">delete</span> statement;
<a name="l02170"></a>02170 <span class="keywordflow">if</span> ( expr1 && expr1->deref() )
<a name="l02171"></a>02171 <span class="keyword">delete</span> expr1;
<a name="l02172"></a>02172 <span class="keywordflow">if</span> ( expr2 && expr2->deref() )
<a name="l02173"></a>02173 <span class="keyword">delete</span> expr2;
<a name="l02174"></a>02174 <span class="keywordflow">if</span> ( expr3 && expr3->deref() )
<a name="l02175"></a>02175 <span class="keyword">delete</span> expr3;
<a name="l02176"></a>02176 <span class="keywordflow">return</span> StatementNode::deref();
<a name="l02177"></a>02177 }
<a name="l02178"></a>02178
<a name="l02179"></a>02179 <span class="comment">// ECMA 12.6.3</span>
<a name="l02180"></a>02180 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> ForNode::execute(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l02181"></a>02181 {
<a name="l02182"></a>02182 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v, cval;
<a name="l02183"></a>02183
<a name="l02184"></a>02184 <span class="keywordflow">if</span> (expr1) {
<a name="l02185"></a>02185 v = expr1->evaluate(exec);
<a name="l02186"></a>02186 KJS_CHECKEXCEPTION
<a name="l02187"></a>02187 }
<a name="l02188"></a>02188 <span class="keywordflow">for</span> (;;) {
<a name="l02189"></a>02189 <span class="keywordflow">if</span> (expr2) {
<a name="l02190"></a>02190 <span class="keywordtype">bool</span> b = expr2->toBoolean(exec);
<a name="l02191"></a>02191 KJS_CHECKEXCEPTION
<a name="l02192"></a>02192 <span class="keywordflow">if</span> (!b)
<a name="l02193"></a>02193 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a>(Normal, cval);
<a name="l02194"></a>02194 }
<a name="l02195"></a>02195 <span class="comment">// bail out on error</span>
<a name="l02196"></a>02196 KJS_CHECKEXCEPTION
<a name="l02197"></a>02197
<a name="l02198"></a>02198 exec-><a class="code" href="classKJS_1_1ExecState.html#aa2835385776b40626e4cf06887c0550e" title="Returns the execution context associated with this execution state.">context</a>().imp()->seenLabels()->pushIteration();
<a name="l02199"></a>02199 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> c = statement->execute(exec);
<a name="l02200"></a>02200 exec-><a class="code" href="classKJS_1_1ExecState.html#aa2835385776b40626e4cf06887c0550e" title="Returns the execution context associated with this execution state.">context</a>().imp()->seenLabels()->popIteration();
<a name="l02201"></a>02201 <span class="keywordflow">if</span> (c.isValueCompletion())
<a name="l02202"></a>02202 cval = c.value();
<a name="l02203"></a>02203 <span class="keywordflow">if</span> (!((c.complType() == Continue) && ls.contains(c.target()))) {
<a name="l02204"></a>02204 <span class="keywordflow">if</span> ((c.complType() == Break) && ls.contains(c.target()))
<a name="l02205"></a>02205 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a>(Normal, cval);
<a name="l02206"></a>02206 <span class="keywordflow">if</span> (c.complType() != Normal)
<a name="l02207"></a>02207 <span class="keywordflow">return</span> c;
<a name="l02208"></a>02208 }
<a name="l02209"></a>02209 <span class="keywordflow">if</span> (expr3) {
<a name="l02210"></a>02210 v = expr3->evaluate(exec);
<a name="l02211"></a>02211 KJS_CHECKEXCEPTION
<a name="l02212"></a>02212 }
<a name="l02213"></a>02213 }
<a name="l02214"></a>02214 }
<a name="l02215"></a>02215
<a name="l02216"></a>02216 <span class="keywordtype">void</span> ForNode::processVarDecls(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l02217"></a>02217 {
<a name="l02218"></a>02218 <span class="keywordflow">if</span> (expr1)
<a name="l02219"></a>02219 expr1->processVarDecls(exec);
<a name="l02220"></a>02220
<a name="l02221"></a>02221 statement->processVarDecls(exec);
<a name="l02222"></a>02222 }
<a name="l02223"></a>02223
<a name="l02224"></a>02224 <span class="comment">// ----------------------------- ForInNode ------------------------------------</span>
<a name="l02225"></a>02225
<a name="l02226"></a>02226 ForInNode::ForInNode(Node *l, Node *e, StatementNode *s)
<a name="l02227"></a>02227 : init(0L), lexpr(l), expr(e), varDecl(0L), statement(s)
<a name="l02228"></a>02228 {
<a name="l02229"></a>02229 }
<a name="l02230"></a>02230
<a name="l02231"></a>02231 ForInNode::ForInNode(<span class="keyword">const</span> <a class="code" href="classKJS_1_1Identifier.html" title="Represents an Identifier for a Javascript object.">Identifier</a> &i, AssignExprNode *in, Node *e, StatementNode *s)
<a name="l02232"></a>02232 : ident(i), init(in), expr(e), statement(s)
<a name="l02233"></a>02233 {
<a name="l02234"></a>02234 <span class="comment">// for( var foo = bar in baz )</span>
<a name="l02235"></a>02235 varDecl = <span class="keyword">new</span> VarDeclNode(ident, init, VarDeclNode::Variable);
<a name="l02236"></a>02236 lexpr = <span class="keyword">new</span> ResolveNode(ident);
<a name="l02237"></a>02237 }
<a name="l02238"></a>02238
<a name="l02239"></a>02239 <span class="keywordtype">void</span> ForInNode::ref()
<a name="l02240"></a>02240 {
<a name="l02241"></a>02241 StatementNode::ref();
<a name="l02242"></a>02242 <span class="keywordflow">if</span> ( statement )
<a name="l02243"></a>02243 statement->ref();
<a name="l02244"></a>02244 <span class="keywordflow">if</span> ( expr )
<a name="l02245"></a>02245 expr->ref();
<a name="l02246"></a>02246 <span class="keywordflow">if</span> ( lexpr )
<a name="l02247"></a>02247 lexpr->ref();
<a name="l02248"></a>02248 <span class="keywordflow">if</span> ( init )
<a name="l02249"></a>02249 init->ref();
<a name="l02250"></a>02250 <span class="keywordflow">if</span> ( varDecl )
<a name="l02251"></a>02251 varDecl->ref();
<a name="l02252"></a>02252 }
<a name="l02253"></a>02253
<a name="l02254"></a>02254 <span class="keywordtype">bool</span> ForInNode::deref()
<a name="l02255"></a>02255 {
<a name="l02256"></a>02256 <span class="keywordflow">if</span> ( statement && statement->deref() )
<a name="l02257"></a>02257 <span class="keyword">delete</span> statement;
<a name="l02258"></a>02258 <span class="keywordflow">if</span> ( expr && expr->deref() )
<a name="l02259"></a>02259 <span class="keyword">delete</span> expr;
<a name="l02260"></a>02260 <span class="keywordflow">if</span> ( lexpr && lexpr->deref() )
<a name="l02261"></a>02261 <span class="keyword">delete</span> lexpr;
<a name="l02262"></a>02262 <span class="keywordflow">if</span> ( init && init->deref() )
<a name="l02263"></a>02263 <span class="keyword">delete</span> init;
<a name="l02264"></a>02264 <span class="keywordflow">if</span> ( varDecl && varDecl->deref() )
<a name="l02265"></a>02265 <span class="keyword">delete</span> varDecl;
<a name="l02266"></a>02266 <span class="keywordflow">return</span> StatementNode::deref();
<a name="l02267"></a>02267 }
<a name="l02268"></a>02268
<a name="l02269"></a>02269 <span class="comment">// ECMA 12.6.4</span>
<a name="l02270"></a>02270 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> ForInNode::execute(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l02271"></a>02271 {
<a name="l02272"></a>02272 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> retval;
<a name="l02273"></a>02273 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> c;
<a name="l02274"></a>02274
<a name="l02275"></a>02275 <span class="keywordflow">if</span> ( varDecl ) {
<a name="l02276"></a>02276 (void)varDecl->evaluate(exec);
<a name="l02277"></a>02277 KJS_CHECKEXCEPTION
<a name="l02278"></a>02278 }
<a name="l02279"></a>02279
<a name="l02280"></a>02280 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v = expr->evaluate(exec);
<a name="l02281"></a>02281 <span class="comment">// for Null and Undefined, we want to make sure not to go through</span>
<a name="l02282"></a>02282 <span class="comment">// the loop at all, because their object wrappers will have a</span>
<a name="l02283"></a>02283 <span class="comment">// property list but will throw an exception if you attempt to</span>
<a name="l02284"></a>02284 <span class="comment">// access any property.</span>
<a name="l02285"></a>02285 <span class="keywordflow">if</span> (v.<a class="code" href="classKJS_1_1Value.html#a1704785fc8140c274b0e7ec03eb0dfe2" title="Checks whether or not the value is of a particular tpye.">isA</a>(NullType) || v.<a class="code" href="classKJS_1_1Value.html#a1704785fc8140c274b0e7ec03eb0dfe2" title="Checks whether or not the value is of a particular tpye.">isA</a>(UndefinedType))
<a name="l02286"></a>02286 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a>(Normal, retval);
<a name="l02287"></a>02287
<a name="l02288"></a>02288 <a class="code" href="classKJS_1_1Object.html" title="Represents an Object.">Object</a> o = v.<a class="code" href="classKJS_1_1Value.html#a072d956ce72fd1387bacb27dc466239d" title="Performs the ToObject type conversion operation on this value (ECMA 9.9)">toObject</a>(exec);
<a name="l02289"></a>02289 KJS_CHECKEXCEPTION
<a name="l02290"></a>02290 <a class="code" href="classKJS_1_1ReferenceList.html" title="A list of Reference objects.">ReferenceList</a> propList = o.<a class="code" href="classKJS_1_1Object.html#a8c7f2e3e8a4e60713cb58f8526cf875b" title="Returns a List of References to all the properties of the object.">propList</a>(exec);
<a name="l02291"></a>02291
<a name="l02292"></a>02292 <a class="code" href="classKJS_1_1ReferenceListIterator.html" title="An iterator for a ReferenceList.">ReferenceListIterator</a> propIt = propList.begin();
<a name="l02293"></a>02293
<a name="l02294"></a>02294 <span class="keywordflow">while</span> (propIt != propList.end()) {
<a name="l02295"></a>02295 <a class="code" href="classKJS_1_1Identifier.html" title="Represents an Identifier for a Javascript object.">Identifier</a> <a class="codeRef" doxygen="kdecore.tag:../../kdecore/html/" href="../../kdecore/html/namespaceKStdAccel.html#a737bc2466b1f000625fe8ebddffbb09d">name</a> = propIt->getPropertyName(exec);
<a name="l02296"></a>02296 <span class="keywordflow">if</span> (!o.<a class="code" href="classKJS_1_1Object.html#a8c0f1def86d09e32d8df1e27c3201922" title="Checks to see whether the object (or any object in it's prototype chain) has a property with the spec...">hasProperty</a>(exec,name)) {
<a name="l02297"></a>02297 propIt++;
<a name="l02298"></a>02298 <span class="keywordflow">continue</span>;
<a name="l02299"></a>02299 }
<a name="l02300"></a>02300
<a name="l02301"></a>02301 <a class="code" href="classKJS_1_1Reference.html" title="Defines a Javascript reference.">Reference</a> ref = lexpr->evaluateReference(exec);
<a name="l02302"></a>02302 KJS_CHECKEXCEPTION
<a name="l02303"></a>02303 ref.<a class="code" href="classKJS_1_1Reference.html#a9a7b40644137d1a2a98a3f682c951735" title="Performs the PutValue type conversion operation on this value (ECMA 8.7.1)">putValue</a>(exec, <a class="code" href="classKJS_1_1String.html" title="Represents an primitive String value.">String</a>(name.<a class="code" href="classKJS_1_1Identifier.html#a60e1a5523bb219a8e427733682ad7955" title="returns a UString of the identifier">ustring</a>()));
<a name="l02304"></a>02304
<a name="l02305"></a>02305 exec-><a class="code" href="classKJS_1_1ExecState.html#aa2835385776b40626e4cf06887c0550e" title="Returns the execution context associated with this execution state.">context</a>().imp()->seenLabels()->pushIteration();
<a name="l02306"></a>02306 c = statement->execute(exec);
<a name="l02307"></a>02307 exec-><a class="code" href="classKJS_1_1ExecState.html#aa2835385776b40626e4cf06887c0550e" title="Returns the execution context associated with this execution state.">context</a>().imp()->seenLabels()->popIteration();
<a name="l02308"></a>02308 <span class="keywordflow">if</span> (c.isValueCompletion())
<a name="l02309"></a>02309 retval = c.value();
<a name="l02310"></a>02310
<a name="l02311"></a>02311 <span class="keywordflow">if</span> (!((c.complType() == Continue) && ls.contains(c.target()))) {
<a name="l02312"></a>02312 <span class="keywordflow">if</span> ((c.complType() == Break) && ls.contains(c.target()))
<a name="l02313"></a>02313 <span class="keywordflow">break</span>;
<a name="l02314"></a>02314 <span class="keywordflow">if</span> (c.complType() != Normal) {
<a name="l02315"></a>02315 <span class="keywordflow">return</span> c;
<a name="l02316"></a>02316 }
<a name="l02317"></a>02317 }
<a name="l02318"></a>02318
<a name="l02319"></a>02319 propIt++;
<a name="l02320"></a>02320 }
<a name="l02321"></a>02321
<a name="l02322"></a>02322 <span class="comment">// bail out on error</span>
<a name="l02323"></a>02323 KJS_CHECKEXCEPTION
<a name="l02324"></a>02324
<a name="l02325"></a>02325 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a>(Normal, retval);
<a name="l02326"></a>02326 }
<a name="l02327"></a>02327
<a name="l02328"></a>02328 <span class="keywordtype">void</span> ForInNode::processVarDecls(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l02329"></a>02329 {
<a name="l02330"></a>02330 statement->processVarDecls(exec);
<a name="l02331"></a>02331 }
<a name="l02332"></a>02332
<a name="l02333"></a>02333 <span class="comment">// ----------------------------- ContinueNode ---------------------------------</span>
<a name="l02334"></a>02334
<a name="l02335"></a>02335 <span class="comment">// ECMA 12.7</span>
<a name="l02336"></a>02336 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> ContinueNode::execute(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l02337"></a>02337 {
<a name="l02338"></a>02338 KJS_BREAKPOINT;
<a name="l02339"></a>02339
<a name="l02340"></a>02340 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> dummy;
<a name="l02341"></a>02341
<a name="l02342"></a>02342 <span class="keywordflow">if</span> (ident.isEmpty() && !exec-><a class="code" href="classKJS_1_1ExecState.html#aa2835385776b40626e4cf06887c0550e" title="Returns the execution context associated with this execution state.">context</a>().imp()->seenLabels()->inIteration())
<a name="l02343"></a>02343 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a>(Throw,
<a name="l02344"></a>02344 throwError(exec, SyntaxError, <span class="stringliteral">"continue used outside of iteration statement"</span>));
<a name="l02345"></a>02345 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!ident.isEmpty() && !exec-><a class="code" href="classKJS_1_1ExecState.html#aa2835385776b40626e4cf06887c0550e" title="Returns the execution context associated with this execution state.">context</a>().imp()->seenLabels()-><a class="code" href="classKJS_1_1LabelStack.html#a6c195387b3083cce12d579c5d6e6d8d6" title="Is the id in the stack?">contains</a>(ident))
<a name="l02346"></a>02346 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a>(Throw,
<a name="l02347"></a>02347 throwError(exec, SyntaxError, <span class="stringliteral">"Label %s not found in containing block. Can't continue."</span>, ident));
<a name="l02348"></a>02348 <span class="keywordflow">else</span>
<a name="l02349"></a>02349 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a>(Continue, dummy, ident);
<a name="l02350"></a>02350 }
<a name="l02351"></a>02351
<a name="l02352"></a>02352 <span class="comment">// ----------------------------- BreakNode ------------------------------------</span>
<a name="l02353"></a>02353
<a name="l02354"></a>02354 <span class="comment">// ECMA 12.8</span>
<a name="l02355"></a>02355 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> BreakNode::execute(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l02356"></a>02356 {
<a name="l02357"></a>02357 KJS_BREAKPOINT;
<a name="l02358"></a>02358
<a name="l02359"></a>02359 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> dummy;
<a name="l02360"></a>02360
<a name="l02361"></a>02361 <span class="keywordflow">if</span> (ident.isEmpty() && !exec-><a class="code" href="classKJS_1_1ExecState.html#aa2835385776b40626e4cf06887c0550e" title="Returns the execution context associated with this execution state.">context</a>().imp()->seenLabels()->inIteration() &&
<a name="l02362"></a>02362 !exec-><a class="code" href="classKJS_1_1ExecState.html#aa2835385776b40626e4cf06887c0550e" title="Returns the execution context associated with this execution state.">context</a>().imp()->seenLabels()->inSwitch())
<a name="l02363"></a>02363 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a>(Throw,
<a name="l02364"></a>02364 throwError(exec, SyntaxError, <span class="stringliteral">"break used outside of iteration or switch statement"</span>));
<a name="l02365"></a>02365 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!ident.isEmpty() && !exec-><a class="code" href="classKJS_1_1ExecState.html#aa2835385776b40626e4cf06887c0550e" title="Returns the execution context associated with this execution state.">context</a>().imp()->seenLabels()-><a class="code" href="classKJS_1_1LabelStack.html#a6c195387b3083cce12d579c5d6e6d8d6" title="Is the id in the stack?">contains</a>(ident))
<a name="l02366"></a>02366 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a>(Throw,
<a name="l02367"></a>02367 throwError(exec, SyntaxError, <span class="stringliteral">"Label %s not found in containing block. Can't break."</span>, ident));
<a name="l02368"></a>02368 <span class="keywordflow">else</span>
<a name="l02369"></a>02369 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a>(Break, dummy, ident);
<a name="l02370"></a>02370 }
<a name="l02371"></a>02371
<a name="l02372"></a>02372 <span class="comment">// ----------------------------- ReturnNode -----------------------------------</span>
<a name="l02373"></a>02373
<a name="l02374"></a>02374 <span class="keywordtype">void</span> ReturnNode::ref()
<a name="l02375"></a>02375 {
<a name="l02376"></a>02376 StatementNode::ref();
<a name="l02377"></a>02377 <span class="keywordflow">if</span> ( value )
<a name="l02378"></a>02378 value->ref();
<a name="l02379"></a>02379 }
<a name="l02380"></a>02380
<a name="l02381"></a>02381 <span class="keywordtype">bool</span> ReturnNode::deref()
<a name="l02382"></a>02382 {
<a name="l02383"></a>02383 <span class="keywordflow">if</span> ( value && value->deref() )
<a name="l02384"></a>02384 <span class="keyword">delete</span> value;
<a name="l02385"></a>02385 <span class="keywordflow">return</span> StatementNode::deref();
<a name="l02386"></a>02386 }
<a name="l02387"></a>02387
<a name="l02388"></a>02388 <span class="comment">// ECMA 12.9</span>
<a name="l02389"></a>02389 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> ReturnNode::execute(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l02390"></a>02390 {
<a name="l02391"></a>02391 KJS_BREAKPOINT;
<a name="l02392"></a>02392
<a name="l02393"></a>02393 CodeType codeType = exec-><a class="code" href="classKJS_1_1ExecState.html#aa2835385776b40626e4cf06887c0550e" title="Returns the execution context associated with this execution state.">context</a>().imp()->codeType();
<a name="l02394"></a>02394 <span class="keywordflow">if</span> (codeType != FunctionCode) {
<a name="l02395"></a>02395 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a>(Throw, throwError(exec, SyntaxError, <span class="stringliteral">"Invalid return statement."</span>));
<a name="l02396"></a>02396 }
<a name="l02397"></a>02397
<a name="l02398"></a>02398 <span class="keywordflow">if</span> (!value)
<a name="l02399"></a>02399 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a>(ReturnValue, <a class="code" href="classKJS_1_1Undefined.html" title="Represents an primitive Undefined value.">Undefined</a>());
<a name="l02400"></a>02400
<a name="l02401"></a>02401 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v = value->evaluate(exec);
<a name="l02402"></a>02402 KJS_CHECKEXCEPTION
<a name="l02403"></a>02403
<a name="l02404"></a>02404 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a>(ReturnValue, v);
<a name="l02405"></a>02405 }
<a name="l02406"></a>02406
<a name="l02407"></a>02407 <span class="comment">// ----------------------------- WithNode -------------------------------------</span>
<a name="l02408"></a>02408
<a name="l02409"></a>02409 <span class="keywordtype">void</span> WithNode::ref()
<a name="l02410"></a>02410 {
<a name="l02411"></a>02411 StatementNode::ref();
<a name="l02412"></a>02412 <span class="keywordflow">if</span> ( statement )
<a name="l02413"></a>02413 statement->ref();
<a name="l02414"></a>02414 <span class="keywordflow">if</span> ( expr )
<a name="l02415"></a>02415 expr->ref();
<a name="l02416"></a>02416 }
<a name="l02417"></a>02417
<a name="l02418"></a>02418 <span class="keywordtype">bool</span> WithNode::deref()
<a name="l02419"></a>02419 {
<a name="l02420"></a>02420 <span class="keywordflow">if</span> ( statement && statement->deref() )
<a name="l02421"></a>02421 <span class="keyword">delete</span> statement;
<a name="l02422"></a>02422 <span class="keywordflow">if</span> ( expr && expr->deref() )
<a name="l02423"></a>02423 <span class="keyword">delete</span> expr;
<a name="l02424"></a>02424 <span class="keywordflow">return</span> StatementNode::deref();
<a name="l02425"></a>02425 }
<a name="l02426"></a>02426
<a name="l02427"></a>02427 <span class="comment">// ECMA 12.10</span>
<a name="l02428"></a>02428 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> WithNode::execute(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l02429"></a>02429 {
<a name="l02430"></a>02430 KJS_BREAKPOINT;
<a name="l02431"></a>02431
<a name="l02432"></a>02432 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v = expr->evaluate(exec);
<a name="l02433"></a>02433 KJS_CHECKEXCEPTION
<a name="l02434"></a>02434 <a class="code" href="classKJS_1_1Object.html" title="Represents an Object.">Object</a> o = v.<a class="code" href="classKJS_1_1Value.html#a072d956ce72fd1387bacb27dc466239d" title="Performs the ToObject type conversion operation on this value (ECMA 9.9)">toObject</a>(exec);
<a name="l02435"></a>02435 KJS_CHECKEXCEPTION
<a name="l02436"></a>02436 exec-><a class="code" href="classKJS_1_1ExecState.html#aa2835385776b40626e4cf06887c0550e" title="Returns the execution context associated with this execution state.">context</a>().imp()->pushScope(o);
<a name="l02437"></a>02437 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> res = statement->execute(exec);
<a name="l02438"></a>02438 exec-><a class="code" href="classKJS_1_1ExecState.html#aa2835385776b40626e4cf06887c0550e" title="Returns the execution context associated with this execution state.">context</a>().imp()->popScope();
<a name="l02439"></a>02439
<a name="l02440"></a>02440 <span class="keywordflow">return</span> res;
<a name="l02441"></a>02441 }
<a name="l02442"></a>02442
<a name="l02443"></a>02443 <span class="keywordtype">void</span> WithNode::processVarDecls(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l02444"></a>02444 {
<a name="l02445"></a>02445 statement->processVarDecls(exec);
<a name="l02446"></a>02446 }
<a name="l02447"></a>02447
<a name="l02448"></a>02448 <span class="comment">// ----------------------------- CaseClauseNode -------------------------------</span>
<a name="l02449"></a>02449
<a name="l02450"></a>02450 <span class="keywordtype">void</span> CaseClauseNode::ref()
<a name="l02451"></a>02451 {
<a name="l02452"></a>02452 Node::ref();
<a name="l02453"></a>02453 <span class="keywordflow">if</span> ( expr )
<a name="l02454"></a>02454 expr->ref();
<a name="l02455"></a>02455 <span class="keywordflow">if</span> ( list )
<a name="l02456"></a>02456 list->ref();
<a name="l02457"></a>02457 }
<a name="l02458"></a>02458
<a name="l02459"></a>02459 <span class="keywordtype">bool</span> CaseClauseNode::deref()
<a name="l02460"></a>02460 {
<a name="l02461"></a>02461 <span class="keywordflow">if</span> ( expr && expr->deref() )
<a name="l02462"></a>02462 <span class="keyword">delete</span> expr;
<a name="l02463"></a>02463 <span class="keywordflow">if</span> ( list && list->deref() )
<a name="l02464"></a>02464 <span class="keyword">delete</span> list;
<a name="l02465"></a>02465 <span class="keywordflow">return</span> Node::deref();
<a name="l02466"></a>02466 }
<a name="l02467"></a>02467
<a name="l02468"></a>02468 <span class="comment">// ECMA 12.11</span>
<a name="l02469"></a>02469 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> CaseClauseNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l02470"></a>02470 <span class="keyword"></span>{
<a name="l02471"></a>02471 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v = expr->evaluate(exec);
<a name="l02472"></a>02472 KJS_CHECKEXCEPTIONVALUE
<a name="l02473"></a>02473
<a name="l02474"></a>02474 <span class="keywordflow">return</span> v;
<a name="l02475"></a>02475 }
<a name="l02476"></a>02476
<a name="l02477"></a>02477 <span class="comment">// ECMA 12.11</span>
<a name="l02478"></a>02478 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> CaseClauseNode::evalStatements(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l02479"></a>02479 <span class="keyword"></span>{
<a name="l02480"></a>02480 <span class="keywordflow">if</span> (list)
<a name="l02481"></a>02481 <span class="keywordflow">return</span> list->execute(exec);
<a name="l02482"></a>02482 <span class="keywordflow">else</span>
<a name="l02483"></a>02483 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a>(Normal, <a class="code" href="classKJS_1_1Undefined.html" title="Represents an primitive Undefined value.">Undefined</a>());
<a name="l02484"></a>02484 }
<a name="l02485"></a>02485
<a name="l02486"></a>02486 <span class="keywordtype">void</span> CaseClauseNode::processVarDecls(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l02487"></a>02487 {
<a name="l02488"></a>02488 <span class="keywordflow">if</span> (list)
<a name="l02489"></a>02489 list->processVarDecls(exec);
<a name="l02490"></a>02490 }
<a name="l02491"></a>02491
<a name="l02492"></a>02492 <span class="comment">// ----------------------------- ClauseListNode -------------------------------</span>
<a name="l02493"></a>02493
<a name="l02494"></a>02494 <span class="keywordtype">void</span> ClauseListNode::ref()
<a name="l02495"></a>02495 {
<a name="l02496"></a>02496 <span class="keywordflow">for</span> (ClauseListNode *n = <span class="keyword">this</span>; n; n = n->nx) {
<a name="l02497"></a>02497 n->Node::ref();
<a name="l02498"></a>02498 <span class="keywordflow">if</span> (n->cl)
<a name="l02499"></a>02499 n->cl->ref();
<a name="l02500"></a>02500 }
<a name="l02501"></a>02501 }
<a name="l02502"></a>02502
<a name="l02503"></a>02503 <span class="keywordtype">bool</span> ClauseListNode::deref()
<a name="l02504"></a>02504 {
<a name="l02505"></a>02505 ClauseListNode *next;
<a name="l02506"></a>02506 <span class="keywordflow">for</span> (ClauseListNode *n = <span class="keyword">this</span>; n; n = next) {
<a name="l02507"></a>02507 next = n->nx;
<a name="l02508"></a>02508 <span class="keywordflow">if</span> (n->cl && n->cl->deref())
<a name="l02509"></a>02509 <span class="keyword">delete</span> n->cl;
<a name="l02510"></a>02510 if (n != <span class="keyword">this</span> && n->Node::deref())
<a name="l02511"></a>02511 <span class="keyword">delete</span> n;
<a name="l02512"></a>02512 }
<a name="l02513"></a>02513 <span class="keywordflow">return</span> Node::deref();
<a name="l02514"></a>02514 }
<a name="l02515"></a>02515
<a name="l02516"></a>02516 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> ClauseListNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> * <span class="comment">/*exec*/</span>)<span class="keyword"> const</span>
<a name="l02517"></a>02517 <span class="keyword"></span>{
<a name="l02518"></a>02518 <span class="comment">/* should never be called */</span>
<a name="l02519"></a>02519 assert(<span class="keyword">false</span>);
<a name="l02520"></a>02520 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a>();
<a name="l02521"></a>02521 }
<a name="l02522"></a>02522
<a name="l02523"></a>02523 <span class="comment">// ECMA 12.11</span>
<a name="l02524"></a>02524 <span class="keywordtype">void</span> ClauseListNode::processVarDecls(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l02525"></a>02525 {
<a name="l02526"></a>02526 <span class="keywordflow">for</span> (ClauseListNode *n = <span class="keyword">this</span>; n; n = n->nx)
<a name="l02527"></a>02527 <span class="keywordflow">if</span> (n->cl)
<a name="l02528"></a>02528 n->cl->processVarDecls(exec);
<a name="l02529"></a>02529 }
<a name="l02530"></a>02530
<a name="l02531"></a>02531 <span class="comment">// ----------------------------- CaseBlockNode --------------------------------</span>
<a name="l02532"></a>02532
<a name="l02533"></a>02533 CaseBlockNode::CaseBlockNode(ClauseListNode *l1, CaseClauseNode *d,
<a name="l02534"></a>02534 ClauseListNode *l2)
<a name="l02535"></a>02535 {
<a name="l02536"></a>02536 def = d;
<a name="l02537"></a>02537 <span class="keywordflow">if</span> (l1) {
<a name="l02538"></a>02538 list1 = l1->nx;
<a name="l02539"></a>02539 l1->nx = 0;
<a name="l02540"></a>02540 } <span class="keywordflow">else</span> {
<a name="l02541"></a>02541 list1 = 0;
<a name="l02542"></a>02542 }
<a name="l02543"></a>02543 <span class="keywordflow">if</span> (l2) {
<a name="l02544"></a>02544 list2 = l2->nx;
<a name="l02545"></a>02545 l2->nx = 0;
<a name="l02546"></a>02546 } <span class="keywordflow">else</span> {
<a name="l02547"></a>02547 list2 = 0;
<a name="l02548"></a>02548 }
<a name="l02549"></a>02549 }
<a name="l02550"></a>02550
<a name="l02551"></a>02551 <span class="keywordtype">void</span> CaseBlockNode::ref()
<a name="l02552"></a>02552 {
<a name="l02553"></a>02553 Node::ref();
<a name="l02554"></a>02554 <span class="keywordflow">if</span> ( def )
<a name="l02555"></a>02555 def->ref();
<a name="l02556"></a>02556 <span class="keywordflow">if</span> ( list1 )
<a name="l02557"></a>02557 list1->ref();
<a name="l02558"></a>02558 <span class="keywordflow">if</span> ( list2 )
<a name="l02559"></a>02559 list2->ref();
<a name="l02560"></a>02560 }
<a name="l02561"></a>02561
<a name="l02562"></a>02562 <span class="keywordtype">bool</span> CaseBlockNode::deref()
<a name="l02563"></a>02563 {
<a name="l02564"></a>02564 <span class="keywordflow">if</span> ( def && def->deref() )
<a name="l02565"></a>02565 <span class="keyword">delete</span> def;
<a name="l02566"></a>02566 <span class="keywordflow">if</span> ( list1 && list1->deref() )
<a name="l02567"></a>02567 <span class="keyword">delete</span> list1;
<a name="l02568"></a>02568 <span class="keywordflow">if</span> ( list2 && list2->deref() )
<a name="l02569"></a>02569 <span class="keyword">delete</span> list2;
<a name="l02570"></a>02570 <span class="keywordflow">return</span> Node::deref();
<a name="l02571"></a>02571 }
<a name="l02572"></a>02572
<a name="l02573"></a>02573 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> CaseBlockNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> * <span class="comment">/*exec*/</span>)<span class="keyword"> const</span>
<a name="l02574"></a>02574 <span class="keyword"></span>{
<a name="l02575"></a>02575 <span class="comment">/* should never be called */</span>
<a name="l02576"></a>02576 assert(<span class="keyword">false</span>);
<a name="l02577"></a>02577 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a>();
<a name="l02578"></a>02578 }
<a name="l02579"></a>02579
<a name="l02580"></a>02580 <span class="comment">// ECMA 12.11</span>
<a name="l02581"></a>02581 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> CaseBlockNode::evalBlock(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec, <span class="keyword">const</span> <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a>& input)<span class="keyword"> const</span>
<a name="l02582"></a>02582 <span class="keyword"></span>{
<a name="l02583"></a>02583 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v;
<a name="l02584"></a>02584 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> res;
<a name="l02585"></a>02585 ClauseListNode *a = list1, *b = list2;
<a name="l02586"></a>02586 CaseClauseNode *clause;
<a name="l02587"></a>02587
<a name="l02588"></a>02588 <span class="keywordflow">while</span> (a) {
<a name="l02589"></a>02589 clause = a->clause();
<a name="l02590"></a>02590 a = a->next();
<a name="l02591"></a>02591 v = clause->evaluate(exec);
<a name="l02592"></a>02592 KJS_CHECKEXCEPTION
<a name="l02593"></a>02593 <span class="keywordflow">if</span> (strictEqual(exec, input, v)) {
<a name="l02594"></a>02594 res = clause->evalStatements(exec);
<a name="l02595"></a>02595 <span class="keywordflow">if</span> (res.complType() != Normal)
<a name="l02596"></a>02596 <span class="keywordflow">return</span> res;
<a name="l02597"></a>02597 <span class="keywordflow">while</span> (a) {
<a name="l02598"></a>02598 res = a->clause()->evalStatements(exec);
<a name="l02599"></a>02599 <span class="keywordflow">if</span> (res.complType() != Normal)
<a name="l02600"></a>02600 <span class="keywordflow">return</span> res;
<a name="l02601"></a>02601 a = a->next();
<a name="l02602"></a>02602 }
<a name="l02603"></a>02603 <span class="keywordflow">break</span>;
<a name="l02604"></a>02604 }
<a name="l02605"></a>02605 }
<a name="l02606"></a>02606
<a name="l02607"></a>02607 <span class="keywordflow">while</span> (b) {
<a name="l02608"></a>02608 clause = b->clause();
<a name="l02609"></a>02609 b = b->next();
<a name="l02610"></a>02610 v = clause->evaluate(exec);
<a name="l02611"></a>02611 KJS_CHECKEXCEPTION
<a name="l02612"></a>02612 <span class="keywordflow">if</span> (strictEqual(exec, input, v)) {
<a name="l02613"></a>02613 res = clause->evalStatements(exec);
<a name="l02614"></a>02614 <span class="keywordflow">if</span> (res.complType() != Normal)
<a name="l02615"></a>02615 <span class="keywordflow">return</span> res;
<a name="l02616"></a>02616 <span class="keywordflow">goto</span> step18;
<a name="l02617"></a>02617 }
<a name="l02618"></a>02618 }
<a name="l02619"></a>02619
<a name="l02620"></a>02620 <span class="comment">// default clause</span>
<a name="l02621"></a>02621 <span class="keywordflow">if</span> (def) {
<a name="l02622"></a>02622 res = def->evalStatements(exec);
<a name="l02623"></a>02623 <span class="keywordflow">if</span> (res.complType() != Normal)
<a name="l02624"></a>02624 <span class="keywordflow">return</span> res;
<a name="l02625"></a>02625 }
<a name="l02626"></a>02626 b = list2;
<a name="l02627"></a>02627 step18:
<a name="l02628"></a>02628 <span class="keywordflow">while</span> (b) {
<a name="l02629"></a>02629 clause = b->clause();
<a name="l02630"></a>02630 res = clause->evalStatements(exec);
<a name="l02631"></a>02631 <span class="keywordflow">if</span> (res.complType() != Normal)
<a name="l02632"></a>02632 <span class="keywordflow">return</span> res;
<a name="l02633"></a>02633 b = b->next();
<a name="l02634"></a>02634 }
<a name="l02635"></a>02635
<a name="l02636"></a>02636 <span class="comment">// bail out on error</span>
<a name="l02637"></a>02637 KJS_CHECKEXCEPTION
<a name="l02638"></a>02638
<a name="l02639"></a>02639 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a>(Normal);
<a name="l02640"></a>02640 }
<a name="l02641"></a>02641
<a name="l02642"></a>02642 <span class="keywordtype">void</span> CaseBlockNode::processVarDecls(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l02643"></a>02643 {
<a name="l02644"></a>02644 <span class="keywordflow">if</span> (list1)
<a name="l02645"></a>02645 list1->processVarDecls(exec);
<a name="l02646"></a>02646 <span class="keywordflow">if</span> (def)
<a name="l02647"></a>02647 def->processVarDecls(exec);
<a name="l02648"></a>02648 <span class="keywordflow">if</span> (list2)
<a name="l02649"></a>02649 list2->processVarDecls(exec);
<a name="l02650"></a>02650 }
<a name="l02651"></a>02651
<a name="l02652"></a>02652 <span class="comment">// ----------------------------- SwitchNode -----------------------------------</span>
<a name="l02653"></a>02653
<a name="l02654"></a>02654 <span class="keywordtype">void</span> SwitchNode::ref()
<a name="l02655"></a>02655 {
<a name="l02656"></a>02656 StatementNode::ref();
<a name="l02657"></a>02657 <span class="keywordflow">if</span> ( expr )
<a name="l02658"></a>02658 expr->ref();
<a name="l02659"></a>02659 <span class="keywordflow">if</span> ( block )
<a name="l02660"></a>02660 block->ref();
<a name="l02661"></a>02661 }
<a name="l02662"></a>02662
<a name="l02663"></a>02663 <span class="keywordtype">bool</span> SwitchNode::deref()
<a name="l02664"></a>02664 {
<a name="l02665"></a>02665 <span class="keywordflow">if</span> ( expr && expr->deref() )
<a name="l02666"></a>02666 <span class="keyword">delete</span> expr;
<a name="l02667"></a>02667 <span class="keywordflow">if</span> ( block && block->deref() )
<a name="l02668"></a>02668 <span class="keyword">delete</span> block;
<a name="l02669"></a>02669 <span class="keywordflow">return</span> StatementNode::deref();
<a name="l02670"></a>02670 }
<a name="l02671"></a>02671
<a name="l02672"></a>02672 <span class="comment">// ECMA 12.11</span>
<a name="l02673"></a>02673 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> SwitchNode::execute(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l02674"></a>02674 {
<a name="l02675"></a>02675 KJS_BREAKPOINT;
<a name="l02676"></a>02676
<a name="l02677"></a>02677 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v = expr->evaluate(exec);
<a name="l02678"></a>02678 KJS_CHECKEXCEPTION
<a name="l02679"></a>02679 exec-><a class="code" href="classKJS_1_1ExecState.html#aa2835385776b40626e4cf06887c0550e" title="Returns the execution context associated with this execution state.">context</a>().imp()->seenLabels()->pushSwitch();
<a name="l02680"></a>02680 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> res = block->evalBlock(exec,v);
<a name="l02681"></a>02681 exec-><a class="code" href="classKJS_1_1ExecState.html#aa2835385776b40626e4cf06887c0550e" title="Returns the execution context associated with this execution state.">context</a>().imp()->seenLabels()->popSwitch();
<a name="l02682"></a>02682
<a name="l02683"></a>02683 <span class="keywordflow">if</span> ((res.complType() == Break) && ls.contains(res.target()))
<a name="l02684"></a>02684 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a>(Normal, res.value());
<a name="l02685"></a>02685 <span class="keywordflow">else</span>
<a name="l02686"></a>02686 <span class="keywordflow">return</span> res;
<a name="l02687"></a>02687 }
<a name="l02688"></a>02688
<a name="l02689"></a>02689 <span class="keywordtype">void</span> SwitchNode::processVarDecls(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l02690"></a>02690 {
<a name="l02691"></a>02691 block->processVarDecls(exec);
<a name="l02692"></a>02692 }
<a name="l02693"></a>02693
<a name="l02694"></a>02694 <span class="comment">// ----------------------------- LabelNode ------------------------------------</span>
<a name="l02695"></a>02695
<a name="l02696"></a>02696 <span class="keywordtype">void</span> LabelNode::ref()
<a name="l02697"></a>02697 {
<a name="l02698"></a>02698 StatementNode::ref();
<a name="l02699"></a>02699 <span class="keywordflow">if</span> ( statement )
<a name="l02700"></a>02700 statement->ref();
<a name="l02701"></a>02701 }
<a name="l02702"></a>02702
<a name="l02703"></a>02703 <span class="keywordtype">bool</span> LabelNode::deref()
<a name="l02704"></a>02704 {
<a name="l02705"></a>02705 <span class="keywordflow">if</span> ( statement && statement->deref() )
<a name="l02706"></a>02706 <span class="keyword">delete</span> statement;
<a name="l02707"></a>02707 <span class="keywordflow">return</span> StatementNode::deref();
<a name="l02708"></a>02708 }
<a name="l02709"></a>02709
<a name="l02710"></a>02710 <span class="comment">// ECMA 12.12</span>
<a name="l02711"></a>02711 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> LabelNode::execute(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l02712"></a>02712 {
<a name="l02713"></a>02713 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> e;
<a name="l02714"></a>02714
<a name="l02715"></a>02715 <span class="keywordflow">if</span> (!exec-><a class="code" href="classKJS_1_1ExecState.html#aa2835385776b40626e4cf06887c0550e" title="Returns the execution context associated with this execution state.">context</a>().imp()->seenLabels()-><a class="code" href="classKJS_1_1LabelStack.html#aa2bda0670ac692d95cc2d7d497d0cb55" title="If id is not empty and is not in the stack already, puts it on top of the stack and returns true...">push</a>(label)) {
<a name="l02716"></a>02716 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a>( Throw,
<a name="l02717"></a>02717 throwError(exec, SyntaxError, <span class="stringliteral">"Duplicated label %s found."</span>, label));
<a name="l02718"></a>02718 };
<a name="l02719"></a>02719 e = statement->execute(exec);
<a name="l02720"></a>02720 exec-><a class="code" href="classKJS_1_1ExecState.html#aa2835385776b40626e4cf06887c0550e" title="Returns the execution context associated with this execution state.">context</a>().imp()->seenLabels()-><a class="code" href="classKJS_1_1LabelStack.html#a24c7fa9d3a3e27c40806b40c9089faf2" title="Removes from the stack the last pushed id (what else?)">pop</a>();
<a name="l02721"></a>02721
<a name="l02722"></a>02722 <span class="keywordflow">if</span> ((e.complType() == Break) && (e.target() == label))
<a name="l02723"></a>02723 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a>(Normal, e.value());
<a name="l02724"></a>02724 <span class="keywordflow">else</span>
<a name="l02725"></a>02725 <span class="keywordflow">return</span> e;
<a name="l02726"></a>02726 }
<a name="l02727"></a>02727
<a name="l02728"></a>02728 <span class="keywordtype">void</span> LabelNode::processVarDecls(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l02729"></a>02729 {
<a name="l02730"></a>02730 statement->processVarDecls(exec);
<a name="l02731"></a>02731 }
<a name="l02732"></a>02732
<a name="l02733"></a>02733 <span class="comment">// ----------------------------- ThrowNode ------------------------------------</span>
<a name="l02734"></a>02734
<a name="l02735"></a>02735 <span class="keywordtype">void</span> ThrowNode::ref()
<a name="l02736"></a>02736 {
<a name="l02737"></a>02737 StatementNode::ref();
<a name="l02738"></a>02738 <span class="keywordflow">if</span> ( expr )
<a name="l02739"></a>02739 expr->ref();
<a name="l02740"></a>02740 }
<a name="l02741"></a>02741
<a name="l02742"></a>02742 <span class="keywordtype">bool</span> ThrowNode::deref()
<a name="l02743"></a>02743 {
<a name="l02744"></a>02744 <span class="keywordflow">if</span> ( expr && expr->deref() )
<a name="l02745"></a>02745 <span class="keyword">delete</span> expr;
<a name="l02746"></a>02746 <span class="keywordflow">return</span> StatementNode::deref();
<a name="l02747"></a>02747 }
<a name="l02748"></a>02748
<a name="l02749"></a>02749 <span class="comment">// ECMA 12.13</span>
<a name="l02750"></a>02750 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> ThrowNode::execute(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l02751"></a>02751 {
<a name="l02752"></a>02752 KJS_BREAKPOINT;
<a name="l02753"></a>02753
<a name="l02754"></a>02754 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> v = expr->evaluate(exec);
<a name="l02755"></a>02755 KJS_CHECKEXCEPTION
<a name="l02756"></a>02756
<a name="l02757"></a>02757 <span class="comment">// bail out on error</span>
<a name="l02758"></a>02758 KJS_CHECKEXCEPTION
<a name="l02759"></a>02759
<a name="l02760"></a>02760 Debugger *dbg = exec->interpreter()->imp()->debugger();
<a name="l02761"></a>02761 <span class="keywordflow">if</span> (dbg)
<a name="l02762"></a>02762 dbg->exception(exec,v,exec-><a class="code" href="classKJS_1_1ExecState.html#aa2835385776b40626e4cf06887c0550e" title="Returns the execution context associated with this execution state.">context</a>().imp()->inTryCatch());
<a name="l02763"></a>02763
<a name="l02764"></a>02764 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a>(Throw, v);
<a name="l02765"></a>02765 }
<a name="l02766"></a>02766
<a name="l02767"></a>02767 <span class="comment">// ----------------------------- CatchNode ------------------------------------</span>
<a name="l02768"></a>02768
<a name="l02769"></a>02769 <span class="keywordtype">void</span> CatchNode::ref()
<a name="l02770"></a>02770 {
<a name="l02771"></a>02771 StatementNode::ref();
<a name="l02772"></a>02772 <span class="keywordflow">if</span> ( block )
<a name="l02773"></a>02773 block->ref();
<a name="l02774"></a>02774 }
<a name="l02775"></a>02775
<a name="l02776"></a>02776 <span class="keywordtype">bool</span> CatchNode::deref()
<a name="l02777"></a>02777 {
<a name="l02778"></a>02778 <span class="keywordflow">if</span> ( block && block->deref() )
<a name="l02779"></a>02779 <span class="keyword">delete</span> block;
<a name="l02780"></a>02780 <span class="keywordflow">return</span> StatementNode::deref();
<a name="l02781"></a>02781 }
<a name="l02782"></a>02782
<a name="l02783"></a>02783 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> CatchNode::execute(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> * <span class="comment">/*exec*/</span>)
<a name="l02784"></a>02784 {
<a name="l02785"></a>02785 <span class="comment">// should never be reached. execute(exec, arg) is used instead</span>
<a name="l02786"></a>02786 assert(0L);
<a name="l02787"></a>02787 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a>();
<a name="l02788"></a>02788 }
<a name="l02789"></a>02789
<a name="l02790"></a>02790 <span class="comment">// ECMA 12.14</span>
<a name="l02791"></a>02791 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> CatchNode::execute(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec, <span class="keyword">const</span> <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> &arg)
<a name="l02792"></a>02792 {
<a name="l02793"></a>02793 <span class="comment">/* TODO: correct ? Not part of the spec */</span>
<a name="l02794"></a>02794
<a name="l02795"></a>02795 exec->clearException();
<a name="l02796"></a>02796
<a name="l02797"></a>02797 <a class="code" href="classKJS_1_1Object.html" title="Represents an Object.">Object</a> obj(<span class="keyword">new</span> ObjectImp());
<a name="l02798"></a>02798 obj.<a class="code" href="classKJS_1_1Object.html#aa67ec5ebaa19921db0fec1688378da2e" title="Sets the specified property.">put</a>(exec, ident, arg, DontDelete);
<a name="l02799"></a>02799 exec-><a class="code" href="classKJS_1_1ExecState.html#aa2835385776b40626e4cf06887c0550e" title="Returns the execution context associated with this execution state.">context</a>().imp()->pushScope(obj);
<a name="l02800"></a>02800 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> c = block->execute(exec);
<a name="l02801"></a>02801 exec-><a class="code" href="classKJS_1_1ExecState.html#aa2835385776b40626e4cf06887c0550e" title="Returns the execution context associated with this execution state.">context</a>().imp()->popScope();
<a name="l02802"></a>02802
<a name="l02803"></a>02803 <span class="keywordflow">return</span> c;
<a name="l02804"></a>02804 }
<a name="l02805"></a>02805
<a name="l02806"></a>02806 <span class="keywordtype">void</span> CatchNode::processVarDecls(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l02807"></a>02807 {
<a name="l02808"></a>02808 block->processVarDecls(exec);
<a name="l02809"></a>02809 }
<a name="l02810"></a>02810
<a name="l02811"></a>02811 <span class="comment">// ----------------------------- FinallyNode ----------------------------------</span>
<a name="l02812"></a>02812
<a name="l02813"></a>02813 <span class="keywordtype">void</span> FinallyNode::ref()
<a name="l02814"></a>02814 {
<a name="l02815"></a>02815 StatementNode::ref();
<a name="l02816"></a>02816 <span class="keywordflow">if</span> ( block )
<a name="l02817"></a>02817 block->ref();
<a name="l02818"></a>02818 }
<a name="l02819"></a>02819
<a name="l02820"></a>02820 <span class="keywordtype">bool</span> FinallyNode::deref()
<a name="l02821"></a>02821 {
<a name="l02822"></a>02822 <span class="keywordflow">if</span> ( block && block->deref() )
<a name="l02823"></a>02823 <span class="keyword">delete</span> block;
<a name="l02824"></a>02824 <span class="keywordflow">return</span> StatementNode::deref();
<a name="l02825"></a>02825 }
<a name="l02826"></a>02826
<a name="l02827"></a>02827 <span class="comment">// ECMA 12.14</span>
<a name="l02828"></a>02828 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> FinallyNode::execute(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l02829"></a>02829 {
<a name="l02830"></a>02830 <span class="keywordflow">return</span> block->execute(exec);
<a name="l02831"></a>02831 }
<a name="l02832"></a>02832
<a name="l02833"></a>02833 <span class="keywordtype">void</span> FinallyNode::processVarDecls(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l02834"></a>02834 {
<a name="l02835"></a>02835 block->processVarDecls(exec);
<a name="l02836"></a>02836 }
<a name="l02837"></a>02837
<a name="l02838"></a>02838 <span class="comment">// ----------------------------- TryNode --------------------------------------</span>
<a name="l02839"></a>02839
<a name="l02840"></a>02840 <span class="keywordtype">void</span> TryNode::ref()
<a name="l02841"></a>02841 {
<a name="l02842"></a>02842 StatementNode::ref();
<a name="l02843"></a>02843 <span class="keywordflow">if</span> ( block )
<a name="l02844"></a>02844 block->ref();
<a name="l02845"></a>02845 <span class="keywordflow">if</span> ( _final )
<a name="l02846"></a>02846 _final->ref();
<a name="l02847"></a>02847 <span class="keywordflow">if</span> ( _catch )
<a name="l02848"></a>02848 _catch->ref();
<a name="l02849"></a>02849 }
<a name="l02850"></a>02850
<a name="l02851"></a>02851 <span class="keywordtype">bool</span> TryNode::deref()
<a name="l02852"></a>02852 {
<a name="l02853"></a>02853 <span class="keywordflow">if</span> ( block && block->deref() )
<a name="l02854"></a>02854 <span class="keyword">delete</span> block;
<a name="l02855"></a>02855 <span class="keywordflow">if</span> ( _final && _final->deref() )
<a name="l02856"></a>02856 <span class="keyword">delete</span> _final;
<a name="l02857"></a>02857 <span class="keywordflow">if</span> ( _catch && _catch->deref() )
<a name="l02858"></a>02858 <span class="keyword">delete</span> _catch;
<a name="l02859"></a>02859 <span class="keywordflow">return</span> StatementNode::deref();
<a name="l02860"></a>02860 }
<a name="l02861"></a>02861
<a name="l02862"></a>02862 <span class="comment">// ECMA 12.14</span>
<a name="l02863"></a>02863 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> TryNode::execute(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l02864"></a>02864 {
<a name="l02865"></a>02865 KJS_BREAKPOINT;
<a name="l02866"></a>02866
<a name="l02867"></a>02867 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> c, c2;
<a name="l02868"></a>02868
<a name="l02869"></a>02869 <span class="keywordflow">if</span> (_catch)
<a name="l02870"></a>02870 exec-><a class="code" href="classKJS_1_1ExecState.html#aa2835385776b40626e4cf06887c0550e" title="Returns the execution context associated with this execution state.">context</a>().imp()->pushTryCatch();
<a name="l02871"></a>02871 c = block->execute(exec);
<a name="l02872"></a>02872 <span class="keywordflow">if</span> (_catch)
<a name="l02873"></a>02873 exec-><a class="code" href="classKJS_1_1ExecState.html#aa2835385776b40626e4cf06887c0550e" title="Returns the execution context associated with this execution state.">context</a>().imp()->popTryCatch();
<a name="l02874"></a>02874
<a name="l02875"></a>02875 <span class="keywordflow">if</span> (!_final) {
<a name="l02876"></a>02876 <span class="keywordflow">if</span> (c.complType() != Throw)
<a name="l02877"></a>02877 <span class="keywordflow">return</span> c;
<a name="l02878"></a>02878 <span class="keywordflow">return</span> _catch->execute(exec,c.value());
<a name="l02879"></a>02879 }
<a name="l02880"></a>02880
<a name="l02881"></a>02881 <span class="keywordflow">if</span> (!_catch) {
<a name="l02882"></a>02882 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> exception = exec->_exception;
<a name="l02883"></a>02883 exec->_exception = <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a>();
<a name="l02884"></a>02884
<a name="l02885"></a>02885 c2 = _final->execute(exec);
<a name="l02886"></a>02886
<a name="l02887"></a>02887 <span class="keywordflow">if</span> (!exec->hadException() && c2.complType() != Throw)
<a name="l02888"></a>02888 exec->_exception = exception;
<a name="l02889"></a>02889
<a name="l02890"></a>02890 return (c2.complType() == Normal) ? c : c2;
<a name="l02891"></a>02891 }
<a name="l02892"></a>02892
<a name="l02893"></a>02893 <span class="keywordflow">if</span> (c.complType() == Throw)
<a name="l02894"></a>02894 c = _catch->execute(exec,c.value());
<a name="l02895"></a>02895
<a name="l02896"></a>02896 c2 = _final->execute(exec);
<a name="l02897"></a>02897 <span class="keywordflow">return</span> (c2.complType() == Normal) ? c : c2;
<a name="l02898"></a>02898 }
<a name="l02899"></a>02899
<a name="l02900"></a>02900 <span class="keywordtype">void</span> TryNode::processVarDecls(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l02901"></a>02901 {
<a name="l02902"></a>02902 block->processVarDecls(exec);
<a name="l02903"></a>02903 <span class="keywordflow">if</span> (_final)
<a name="l02904"></a>02904 _final->processVarDecls(exec);
<a name="l02905"></a>02905 <span class="keywordflow">if</span> (_catch)
<a name="l02906"></a>02906 _catch->processVarDecls(exec);
<a name="l02907"></a>02907 }
<a name="l02908"></a>02908
<a name="l02909"></a>02909 <span class="comment">// ----------------------------- ParameterNode --------------------------------</span>
<a name="l02910"></a>02910
<a name="l02911"></a>02911 <span class="keywordtype">void</span> ParameterNode::ref()
<a name="l02912"></a>02912 {
<a name="l02913"></a>02913 <span class="keywordflow">for</span> (ParameterNode *n = <span class="keyword">this</span>; n; n = n->next)
<a name="l02914"></a>02914 n->Node::ref();
<a name="l02915"></a>02915 }
<a name="l02916"></a>02916
<a name="l02917"></a>02917 <span class="keywordtype">bool</span> ParameterNode::deref()
<a name="l02918"></a>02918 {
<a name="l02919"></a>02919 ParameterNode *next;
<a name="l02920"></a>02920 <span class="keywordflow">for</span> (ParameterNode *n = <span class="keyword">this</span>; n; n = next) {
<a name="l02921"></a>02921 next = n->next;
<a name="l02922"></a>02922 <span class="keywordflow">if</span> (n != <span class="keyword">this</span> && n->Node::deref())
<a name="l02923"></a>02923 <span class="keyword">delete</span> n;
<a name="l02924"></a>02924 }
<a name="l02925"></a>02925 <span class="keywordflow">return</span> Node::deref();
<a name="l02926"></a>02926 }
<a name="l02927"></a>02927
<a name="l02928"></a>02928 <span class="comment">// ECMA 13</span>
<a name="l02929"></a>02929 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> ParameterNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> * <span class="comment">/*exec*/</span>)<span class="keyword"> const</span>
<a name="l02930"></a>02930 <span class="keyword"></span>{
<a name="l02931"></a>02931 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Undefined.html" title="Represents an primitive Undefined value.">Undefined</a>();
<a name="l02932"></a>02932 }
<a name="l02933"></a>02933
<a name="l02934"></a>02934 <span class="comment">// ----------------------------- FunctionBodyNode -----------------------------</span>
<a name="l02935"></a>02935
<a name="l02936"></a>02936
<a name="l02937"></a>02937 FunctionBodyNode::FunctionBodyNode(SourceElementsNode *s)
<a name="l02938"></a>02938 : BlockNode(s)
<a name="l02939"></a>02939 {
<a name="l02940"></a>02940 <span class="comment">//fprintf(stderr,"FunctionBodyNode::FunctionBodyNode %p\n",this);</span>
<a name="l02941"></a>02941 }
<a name="l02942"></a>02942
<a name="l02943"></a>02943 <span class="keywordtype">void</span> FunctionBodyNode::processFuncDecl(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l02944"></a>02944 {
<a name="l02945"></a>02945 <span class="keywordflow">if</span> (source)
<a name="l02946"></a>02946 source->processFuncDecl(exec);
<a name="l02947"></a>02947 }
<a name="l02948"></a>02948
<a name="l02949"></a>02949 <span class="comment">// ----------------------------- FuncDeclNode ---------------------------------</span>
<a name="l02950"></a>02950
<a name="l02951"></a>02951 <span class="keywordtype">void</span> FuncDeclNode::ref()
<a name="l02952"></a>02952 {
<a name="l02953"></a>02953 StatementNode::ref();
<a name="l02954"></a>02954 <span class="keywordflow">if</span> ( param )
<a name="l02955"></a>02955 param->ref();
<a name="l02956"></a>02956 <span class="keywordflow">if</span> ( body )
<a name="l02957"></a>02957 body->ref();
<a name="l02958"></a>02958 }
<a name="l02959"></a>02959
<a name="l02960"></a>02960 <span class="keywordtype">bool</span> FuncDeclNode::deref()
<a name="l02961"></a>02961 {
<a name="l02962"></a>02962 <span class="keywordflow">if</span> ( param && param->deref() )
<a name="l02963"></a>02963 <span class="keyword">delete</span> param;
<a name="l02964"></a>02964 <span class="keywordflow">if</span> ( body && body->deref() )
<a name="l02965"></a>02965 <span class="keyword">delete</span> body;
<a name="l02966"></a>02966 <span class="keywordflow">return</span> StatementNode::deref();
<a name="l02967"></a>02967 }
<a name="l02968"></a>02968
<a name="l02969"></a>02969 <span class="comment">// ECMA 13</span>
<a name="l02970"></a>02970 <span class="keywordtype">void</span> FuncDeclNode::processFuncDecl(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l02971"></a>02971 {
<a name="l02972"></a>02972 <a class="code" href="classKJS_1_1ContextImp.html" title="Execution context.">ContextImp</a> *ctx = exec-><a class="code" href="classKJS_1_1ExecState.html#aa2835385776b40626e4cf06887c0550e" title="Returns the execution context associated with this execution state.">context</a>().imp();
<a name="l02973"></a>02973 <span class="comment">// TODO: let this be an object with [[Class]] property "Function"</span>
<a name="l02974"></a>02974 <a class="code" href="classKJS_1_1FunctionImp.html" title="Implementation class for functions implemented in JS.">FunctionImp</a> *fimp = <span class="keyword">new</span> DeclaredFunctionImp(exec, ident, body, exec-><a class="code" href="classKJS_1_1ExecState.html#aa2835385776b40626e4cf06887c0550e" title="Returns the execution context associated with this execution state.">context</a>().imp()->scopeChain());
<a name="l02975"></a>02975 <a class="code" href="classKJS_1_1Object.html" title="Represents an Object.">Object</a> func(fimp); <span class="comment">// protect from GC</span>
<a name="l02976"></a>02976
<a name="l02977"></a>02977 <span class="comment">// Value proto = exec->lexicalInterpreter()->builtinObject().construct(exec,List::empty());</span>
<a name="l02978"></a>02978 <a class="code" href="classKJS_1_1List.html" title="Native list type.">List</a> empty;
<a name="l02979"></a>02979 <a class="code" href="classKJS_1_1Object.html" title="Represents an Object.">Object</a> proto = exec-><a class="code" href="classKJS_1_1ExecState.html#af210e5fad440d91a939e71ccb2bf6be7" title="Returns the interpreter associated with the current scope's global object.">lexicalInterpreter</a>()-><a class="code" href="classKJS_1_1Interpreter.html#ad467d009a322544d50af535549c9a18d" title="Returns the builtin "Object" object.">builtinObject</a>().<a class="code" href="classKJS_1_1Object.html#a85a7d585cbaeaef5bff34676bb748cc7" title="Creates a new object based on this object.">construct</a>(exec,empty);
<a name="l02980"></a>02980 proto.<a class="code" href="classKJS_1_1Object.html#aa67ec5ebaa19921db0fec1688378da2e" title="Sets the specified property.">put</a>(exec, constructorPropertyName, func, ReadOnly|DontDelete|DontEnum);
<a name="l02981"></a>02981 func.<a class="code" href="classKJS_1_1Object.html#aa67ec5ebaa19921db0fec1688378da2e" title="Sets the specified property.">put</a>(exec, prototypePropertyName, proto, Internal|DontDelete);
<a name="l02982"></a>02982
<a name="l02983"></a>02983 <span class="keywordtype">int</span> plen = 0;
<a name="l02984"></a>02984 <span class="keywordflow">for</span>(<span class="keyword">const</span> ParameterNode *p = param; p != 0L; p = p->nextParam(), plen++)
<a name="l02985"></a>02985 fimp->addParameter(p->ident());
<a name="l02986"></a>02986
<a name="l02987"></a>02987 func.<a class="code" href="classKJS_1_1Object.html#aa67ec5ebaa19921db0fec1688378da2e" title="Sets the specified property.">put</a>(exec, lengthPropertyName, <a class="code" href="classKJS_1_1Number.html" title="Represents an primitive Number value.">Number</a>(plen), ReadOnly|DontDelete|DontEnum);
<a name="l02988"></a>02988
<a name="l02989"></a>02989 <span class="preprocessor">#ifdef KJS_VERBOSE</span>
<a name="l02990"></a>02990 <span class="preprocessor"></span> fprintf(stderr,<span class="stringliteral">"KJS: new function %s in %p\n"</span>, ident.ustring().cstring().c_str(), ctx->variableObject().imp());
<a name="l02991"></a>02991 <span class="preprocessor">#endif</span>
<a name="l02992"></a>02992 <span class="preprocessor"></span> <span class="keywordflow">if</span> (exec->_context->codeType() == EvalCode) {
<a name="l02993"></a>02993 <span class="comment">// ECMA 10.2.2</span>
<a name="l02994"></a>02994 ctx->variableObject().<a class="code" href="classKJS_1_1Object.html#aa67ec5ebaa19921db0fec1688378da2e" title="Sets the specified property.">put</a>(exec, ident, func, Internal);
<a name="l02995"></a>02995 } <span class="keywordflow">else</span> {
<a name="l02996"></a>02996 ctx->variableObject().<a class="code" href="classKJS_1_1Object.html#aa67ec5ebaa19921db0fec1688378da2e" title="Sets the specified property.">put</a>(exec, ident, func, DontDelete | Internal);
<a name="l02997"></a>02997 }
<a name="l02998"></a>02998
<a name="l02999"></a>02999 <span class="keywordflow">if</span> (body) {
<a name="l03000"></a>03000 <span class="comment">// hack the scope so that the function gets put as a property of func, and it's scope</span>
<a name="l03001"></a>03001 <span class="comment">// contains the func as well as our current scope</span>
<a name="l03002"></a>03002 <a class="code" href="classKJS_1_1Object.html" title="Represents an Object.">Object</a> oldVar = ctx->variableObject();
<a name="l03003"></a>03003 ctx->setVariableObject(func);
<a name="l03004"></a>03004 ctx->pushScope(func);
<a name="l03005"></a>03005 body->processFuncDecl(exec);
<a name="l03006"></a>03006 ctx->popScope();
<a name="l03007"></a>03007 ctx->setVariableObject(oldVar);
<a name="l03008"></a>03008 }
<a name="l03009"></a>03009 }
<a name="l03010"></a>03010
<a name="l03011"></a>03011 <span class="comment">// ----------------------------- FuncExprNode ---------------------------------</span>
<a name="l03012"></a>03012
<a name="l03013"></a>03013 <span class="keywordtype">void</span> FuncExprNode::ref()
<a name="l03014"></a>03014 {
<a name="l03015"></a>03015 Node::ref();
<a name="l03016"></a>03016 <span class="keywordflow">if</span> ( param )
<a name="l03017"></a>03017 param->ref();
<a name="l03018"></a>03018 <span class="keywordflow">if</span> ( body )
<a name="l03019"></a>03019 body->ref();
<a name="l03020"></a>03020 }
<a name="l03021"></a>03021
<a name="l03022"></a>03022 <span class="keywordtype">bool</span> FuncExprNode::deref()
<a name="l03023"></a>03023 {
<a name="l03024"></a>03024 <span class="keywordflow">if</span> ( param && param->deref() )
<a name="l03025"></a>03025 <span class="keyword">delete</span> param;
<a name="l03026"></a>03026 <span class="keywordflow">if</span> ( body && body->deref() )
<a name="l03027"></a>03027 <span class="keyword">delete</span> body;
<a name="l03028"></a>03028 <span class="keywordflow">return</span> Node::deref();
<a name="l03029"></a>03029 }
<a name="l03030"></a>03030
<a name="l03031"></a>03031
<a name="l03032"></a>03032 <span class="comment">// ECMA 13</span>
<a name="l03033"></a>03033 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> FuncExprNode::evaluate(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)<span class="keyword"> const</span>
<a name="l03034"></a>03034 <span class="keyword"></span>{
<a name="l03035"></a>03035 <a class="code" href="classKJS_1_1ContextImp.html" title="Execution context.">ContextImp</a> *context = exec-><a class="code" href="classKJS_1_1ExecState.html#aa2835385776b40626e4cf06887c0550e" title="Returns the execution context associated with this execution state.">context</a>().imp();
<a name="l03036"></a>03036 <span class="keywordtype">bool</span> named = !ident.isNull();
<a name="l03037"></a>03037 <a class="code" href="classKJS_1_1Object.html" title="Represents an Object.">Object</a> functionScopeObject;
<a name="l03038"></a>03038
<a name="l03039"></a>03039 <span class="keywordflow">if</span> (named) {
<a name="l03040"></a>03040 <span class="comment">// named FunctionExpressions can recursively call themselves,</span>
<a name="l03041"></a>03041 <span class="comment">// but they won't register with the current scope chain and should</span>
<a name="l03042"></a>03042 <span class="comment">// be contained as single property in an anonymous object.</span>
<a name="l03043"></a>03043 functionScopeObject = <a class="code" href="classKJS_1_1Object.html" title="Represents an Object.">Object</a>(<span class="keyword">new</span> ObjectImp());
<a name="l03044"></a>03044 context->pushScope(functionScopeObject);
<a name="l03045"></a>03045 }
<a name="l03046"></a>03046
<a name="l03047"></a>03047 <a class="code" href="classKJS_1_1FunctionImp.html" title="Implementation class for functions implemented in JS.">FunctionImp</a> *fimp = <span class="keyword">new</span> DeclaredFunctionImp(exec, <a class="code" href="classKJS_1_1Identifier.html#a0c11c80ccfb32ebe3ef21445d308765f" title="Creates an empty Identifier.">Identifier::null</a>(), body, exec-><a class="code" href="classKJS_1_1ExecState.html#aa2835385776b40626e4cf06887c0550e" title="Returns the execution context associated with this execution state.">context</a>().imp()->scopeChain());
<a name="l03048"></a>03048 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> ret(fimp);
<a name="l03049"></a>03049 <a class="code" href="classKJS_1_1List.html" title="Native list type.">List</a> empty;
<a name="l03050"></a>03050 <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a> proto = exec-><a class="code" href="classKJS_1_1ExecState.html#af210e5fad440d91a939e71ccb2bf6be7" title="Returns the interpreter associated with the current scope's global object.">lexicalInterpreter</a>()-><a class="code" href="classKJS_1_1Interpreter.html#ad467d009a322544d50af535549c9a18d" title="Returns the builtin "Object" object.">builtinObject</a>().<a class="code" href="classKJS_1_1Object.html#a85a7d585cbaeaef5bff34676bb748cc7" title="Creates a new object based on this object.">construct</a>(exec,empty);
<a name="l03051"></a>03051 fimp->put(exec, prototypePropertyName, proto, Internal|DontDelete);
<a name="l03052"></a>03052
<a name="l03053"></a>03053 <span class="keywordflow">for</span>(<span class="keyword">const</span> ParameterNode *p = param; p != 0L; p = p->nextParam())
<a name="l03054"></a>03054 fimp->addParameter(p->ident());
<a name="l03055"></a>03055
<a name="l03056"></a>03056 <span class="keywordflow">if</span> (named) {
<a name="l03057"></a>03057 functionScopeObject.<a class="code" href="classKJS_1_1Object.html#aa67ec5ebaa19921db0fec1688378da2e" title="Sets the specified property.">put</a>(exec, ident, <a class="code" href="classKJS_1_1Value.html" title="Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...">Value</a>(fimp), ReadOnly|DontDelete);
<a name="l03058"></a>03058 context->popScope();
<a name="l03059"></a>03059 }
<a name="l03060"></a>03060
<a name="l03061"></a>03061 <span class="keywordflow">return</span> ret;
<a name="l03062"></a>03062 }
<a name="l03063"></a>03063
<a name="l03064"></a>03064 <span class="comment">// ----------------------------- SourceElementsNode ---------------------------</span>
<a name="l03065"></a>03065
<a name="l03066"></a>03066 SourceElementsNode::SourceElementsNode(StatementNode *s1)
<a name="l03067"></a>03067 {
<a name="l03068"></a>03068 element = s1;
<a name="l03069"></a>03069 elements = <span class="keyword">this</span>;
<a name="l03070"></a>03070 setLoc(s1->firstLine(), s1->lastLine(), s1->code());
<a name="l03071"></a>03071 }
<a name="l03072"></a>03072
<a name="l03073"></a>03073 SourceElementsNode::SourceElementsNode(SourceElementsNode *s1, StatementNode *s2)
<a name="l03074"></a>03074 {
<a name="l03075"></a>03075 elements = s1->elements;
<a name="l03076"></a>03076 s1->elements = <span class="keyword">this</span>;
<a name="l03077"></a>03077 element = s2;
<a name="l03078"></a>03078 setLoc(s1->firstLine(), s2->lastLine(), s1->code());
<a name="l03079"></a>03079 }
<a name="l03080"></a>03080
<a name="l03081"></a>03081 <span class="keywordtype">void</span> SourceElementsNode::ref()
<a name="l03082"></a>03082 {
<a name="l03083"></a>03083 <span class="keywordflow">for</span> (SourceElementsNode *n = <span class="keyword">this</span>; n; n = n->elements) {
<a name="l03084"></a>03084 n->Node::ref();
<a name="l03085"></a>03085 <span class="keywordflow">if</span> (n->element)
<a name="l03086"></a>03086 n->element->ref();
<a name="l03087"></a>03087 }
<a name="l03088"></a>03088 }
<a name="l03089"></a>03089
<a name="l03090"></a>03090 <span class="keywordtype">bool</span> SourceElementsNode::deref()
<a name="l03091"></a>03091 {
<a name="l03092"></a>03092 SourceElementsNode *next;
<a name="l03093"></a>03093 <span class="keywordflow">for</span> (SourceElementsNode *n = <span class="keyword">this</span>; n; n = next) {
<a name="l03094"></a>03094 next = n->elements;
<a name="l03095"></a>03095 <span class="keywordflow">if</span> (n->element && n->element->deref())
<a name="l03096"></a>03096 <span class="keyword">delete</span> n->element;
<a name="l03097"></a>03097 if (n != <span class="keyword">this</span> && n->Node::deref())
<a name="l03098"></a>03098 <span class="keyword">delete</span> n;
<a name="l03099"></a>03099 }
<a name="l03100"></a>03100 <span class="keywordflow">return</span> StatementNode::deref();
<a name="l03101"></a>03101 }
<a name="l03102"></a>03102
<a name="l03103"></a>03103 <span class="comment">// ECMA 14</span>
<a name="l03104"></a>03104 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> SourceElementsNode::execute(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l03105"></a>03105 {
<a name="l03106"></a>03106 KJS_CHECKEXCEPTION
<a name="l03107"></a>03107
<a name="l03108"></a>03108 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> c1 = element->execute(exec);
<a name="l03109"></a>03109 KJS_CHECKEXCEPTION;
<a name="l03110"></a>03110 <span class="keywordflow">if</span> (c1.complType() != Normal)
<a name="l03111"></a>03111 <span class="keywordflow">return</span> c1;
<a name="l03112"></a>03112
<a name="l03113"></a>03113 <span class="keywordflow">for</span> (SourceElementsNode *n = elements; n; n = n->elements) {
<a name="l03114"></a>03114 <a class="code" href="classKJS_1_1Completion.html" title="Completion objects are used to convey the return status and value from functions.">Completion</a> c2 = n->element->execute(exec);
<a name="l03115"></a>03115 <span class="keywordflow">if</span> (c2.complType() != Normal)
<a name="l03116"></a>03116 <span class="keywordflow">return</span> c2;
<a name="l03117"></a>03117 <span class="comment">// The spec says to return c2 here, but it seems that mozilla returns c1 if</span>
<a name="l03118"></a>03118 <span class="comment">// c2 doesn't have a value</span>
<a name="l03119"></a>03119 <span class="keywordflow">if</span> (c2.value().<a class="code" href="classKJS_1_1Value.html#acd8509ab6b7622c16fdf021803fdd2cb" title="Returns whether or not this is a valid value.">isValid</a>())
<a name="l03120"></a>03120 c1 = c2;
<a name="l03121"></a>03121 }
<a name="l03122"></a>03122
<a name="l03123"></a>03123 <span class="keywordflow">return</span> c1;
<a name="l03124"></a>03124 }
<a name="l03125"></a>03125
<a name="l03126"></a>03126 <span class="comment">// ECMA 14</span>
<a name="l03127"></a>03127 <span class="keywordtype">void</span> SourceElementsNode::processFuncDecl(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l03128"></a>03128 {
<a name="l03129"></a>03129 <span class="keywordflow">for</span> (SourceElementsNode *n = <span class="keyword">this</span>; n; n = n->elements)
<a name="l03130"></a>03130 n->element->processFuncDecl(exec);
<a name="l03131"></a>03131 }
<a name="l03132"></a>03132
<a name="l03133"></a>03133 <span class="keywordtype">void</span> SourceElementsNode::processVarDecls(<a class="code" href="classKJS_1_1ExecState.html" title="Represents the current state of script execution.">ExecState</a> *exec)
<a name="l03134"></a>03134 {
<a name="l03135"></a>03135 <span class="keywordflow">for</span> (SourceElementsNode *n = <span class="keyword">this</span>; n; n = n->elements)
<a name="l03136"></a>03136 n->element->processVarDecls(exec);
<a name="l03137"></a>03137 }
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