<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" lang="en_US" xml:lang="en_US"> <head> <title>kjs: number_object.cpp Source File (kjs)</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta http-equiv="Content-Style-Type" content="text/css" /> <meta http-equiv="pics-label" content='(pics-1.1 "http://www.icra.org/ratingsv02.html" comment "ICRAonline DE v2.0" l gen true for "http://www.kde.org" r (nz 1 vz 1 lz 1 oz 1 cb 1) "http://www.rsac.org/ratingsv01.html" l gen true for "http://www.kde.org" r (n 0 s 0 v 0 l 0))' /> <meta name="trademark" content="KDE e.V." /> <meta name="description" content="K Desktop Environment Homepage, KDE.org" /> <meta name="MSSmartTagsPreventParsing" content="true" /> <meta name="robots" content="all" /> <link rel="shortcut icon" href="../../favicon.ico" /> <link rel="stylesheet" media="screen" type="text/css" title="APIDOX" href="doxygen.css" /> </head> <body> <div id="nav_header_top" align="right"> <a href="#content" class="doNotDisplay" accesskey="2">Skip to main content ::</a> <a href="../.."><img id="nav_header_logo" alt="Home" align="left" src="../../kde_gear_64.png" border="0" /></a> <span class="doNotDisplay">::</span> <div id="nav_header_title" align="left">KDE API Reference</div> </div> <div id="nav_header_bottom" align="right"> <span class="doNotDisplay">:: <a href="#navigation" accesskey="5">Skip to Link Menu</a><br/></span> <div id="nav_header_bottom_right" style="text-align: left;"> / <a href="../..">API Reference</a> / <a href=".">kjs</a> </div> </div> <table id="main" border="0" cellpadding="0" cellspacing="0" width="100%"> <tr> <td valign="top" class="menuheader" height="0"></td> <td id="contentcolumn" valign="top" rowspan="2" > <div id="content" style="padding-top: 0px;"><div style="width:100%; margin: 0px; padding: 0px;"> <a name="content"></a> <!-- Generated by Doxygen 1.4.7 --> <h1>number_object.cpp</h1><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) 1999-2000 Harri Porten (porten@kde.org)</span> <a name="l00005"></a>00005 <span class="comment"> * Copyright (C) 2003 Peter Kelly (pmk@post.com)</span> <a name="l00006"></a>00006 <span class="comment"> *</span> <a name="l00007"></a>00007 <span class="comment"> * This library is free software; you can redistribute it and/or</span> <a name="l00008"></a>00008 <span class="comment"> * modify it under the terms of the GNU Lesser General Public</span> <a name="l00009"></a>00009 <span class="comment"> * License as published by the Free Software Foundation; either</span> <a name="l00010"></a>00010 <span class="comment"> * version 2 of the License, or (at your option) any later version.</span> <a name="l00011"></a>00011 <span class="comment"> *</span> <a name="l00012"></a>00012 <span class="comment"> * This library is distributed in the hope that it will be useful,</span> <a name="l00013"></a>00013 <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span> <a name="l00014"></a>00014 <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span> <a name="l00015"></a>00015 <span class="comment"> * Lesser General Public License for more details.</span> <a name="l00016"></a>00016 <span class="comment"> *</span> <a name="l00017"></a>00017 <span class="comment"> * You should have received a copy of the GNU Lesser General Public</span> <a name="l00018"></a>00018 <span class="comment"> * License along with this library; if not, write to the Free Software</span> <a name="l00019"></a>00019 <span class="comment"> * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA</span> <a name="l00020"></a>00020 <span class="comment"> *</span> <a name="l00021"></a>00021 <span class="comment"> */</span> <a name="l00022"></a>00022 <a name="l00023"></a>00023 <span class="preprocessor">#include "value.h"</span> <a name="l00024"></a>00024 <span class="preprocessor">#include "object.h"</span> <a name="l00025"></a>00025 <span class="preprocessor">#include "types.h"</span> <a name="l00026"></a>00026 <span class="preprocessor">#include "interpreter.h"</span> <a name="l00027"></a>00027 <span class="preprocessor">#include "operations.h"</span> <a name="l00028"></a>00028 <span class="preprocessor">#include "number_object.h"</span> <a name="l00029"></a>00029 <span class="preprocessor">#include "error_object.h"</span> <a name="l00030"></a>00030 <span class="preprocessor">#include "dtoa.h"</span> <a name="l00031"></a>00031 <a name="l00032"></a>00032 <span class="preprocessor">#include "number_object.lut.h"</span> <a name="l00033"></a>00033 <a name="l00034"></a>00034 <span class="preprocessor">#include <assert.h></span> <a name="l00035"></a>00035 <span class="preprocessor">#include <math.h></span> <a name="l00036"></a>00036 <a name="l00037"></a>00037 <span class="keyword">using namespace </span>KJS; <a name="l00038"></a>00038 <a name="l00039"></a>00039 <span class="comment">// ------------------------------ NumberInstanceImp ----------------------------</span> <a name="l00040"></a>00040 <a name="l00041"></a>00041 <span class="keyword">const</span> <a class="code" href="structKJS_1_1ClassInfo.html">ClassInfo</a> NumberInstanceImp::info = {<span class="stringliteral">"Number"</span>, 0, 0, 0}; <a name="l00042"></a>00042 <a name="l00043"></a><a class="code" href="classKJS_1_1NumberInstanceImp.html#dbae9cfff87285a4759fdcc000b26c1b">00043</a> NumberInstanceImp::NumberInstanceImp(<a class="code" href="classKJS_1_1ObjectImp.html">ObjectImp</a> *proto) <a name="l00044"></a>00044 : <a class="code" href="classKJS_1_1ObjectImp.html">ObjectImp</a>(proto) <a name="l00045"></a>00045 { <a name="l00046"></a>00046 } <a name="l00047"></a>00047 <span class="comment">// ------------------------------ NumberPrototypeImp ---------------------------</span> <a name="l00048"></a>00048 <a name="l00049"></a>00049 <span class="comment">// ECMA 15.7.4</span> <a name="l00050"></a>00050 <a name="l00051"></a><a class="code" href="classKJS_1_1NumberPrototypeImp.html#6b1567c17a4b757f5e0ab102c3a28306">00051</a> <a class="code" href="classKJS_1_1NumberPrototypeImp.html#6b1567c17a4b757f5e0ab102c3a28306">NumberPrototypeImp::NumberPrototypeImp</a>(<a class="code" href="classKJS_1_1ExecState.html">ExecState</a> *exec, <a name="l00052"></a>00052 <a class="code" href="classKJS_1_1ObjectPrototypeImp.html">ObjectPrototypeImp</a> *objProto, <a name="l00053"></a>00053 <a class="code" href="classKJS_1_1FunctionPrototypeImp.html">FunctionPrototypeImp</a> *funcProto) <a name="l00054"></a>00054 : <a class="code" href="classKJS_1_1NumberInstanceImp.html">NumberInstanceImp</a>(objProto) <a name="l00055"></a>00055 { <a name="l00056"></a>00056 <a class="code" href="classKJS_1_1Value.html">Value</a> protect(<span class="keyword">this</span>); <a name="l00057"></a>00057 <a class="code" href="classKJS_1_1ObjectImp.html#bb30d46ed8ab0b6bc58dd5d4607ab6fa">setInternalValue</a>(<a class="code" href="classKJS_1_1NumberImp.html#3e1b337f53d948f62e73e2e5dff06f89">NumberImp::zero</a>()); <a name="l00058"></a>00058 <a name="l00059"></a>00059 <span class="comment">// The constructor will be added later, after NumberObjectImp has been constructed</span> <a name="l00060"></a>00060 <a name="l00061"></a>00061 <a class="code" href="classKJS_1_1ObjectImp.html#74b4d9d83c7cda5b1f5f8f3d652f080c">putDirect</a>(toStringPropertyName,<span class="keyword">new</span> <a class="code" href="classKJS_1_1NumberProtoFuncImp.html">NumberProtoFuncImp</a>(exec,funcProto,NumberProtoFuncImp::ToString, <a name="l00062"></a>00062 1,toStringPropertyName),<a class="code" href="namespaceKJS.html#35559acccabfcecba8ec6f0b20e5f4ea7e6f4a4a185fbb63857888981cb6ecff">DontEnum</a>); <a name="l00063"></a>00063 <a class="code" href="classKJS_1_1ObjectImp.html#74b4d9d83c7cda5b1f5f8f3d652f080c">putDirect</a>(toLocaleStringPropertyName,<span class="keyword">new</span> <a class="code" href="classKJS_1_1NumberProtoFuncImp.html">NumberProtoFuncImp</a>(exec,funcProto,NumberProtoFuncImp::ToLocaleString, <a name="l00064"></a>00064 0,toLocaleStringPropertyName),<a class="code" href="namespaceKJS.html#35559acccabfcecba8ec6f0b20e5f4ea7e6f4a4a185fbb63857888981cb6ecff">DontEnum</a>); <a name="l00065"></a>00065 <a class="code" href="classKJS_1_1ObjectImp.html#74b4d9d83c7cda5b1f5f8f3d652f080c">putDirect</a>(valueOfPropertyName,<span class="keyword">new</span> <a class="code" href="classKJS_1_1NumberProtoFuncImp.html">NumberProtoFuncImp</a>(exec,funcProto,NumberProtoFuncImp::ValueOf, <a name="l00066"></a>00066 0,valueOfPropertyName),<a class="code" href="namespaceKJS.html#35559acccabfcecba8ec6f0b20e5f4ea7e6f4a4a185fbb63857888981cb6ecff">DontEnum</a>); <a name="l00067"></a>00067 <a class="code" href="classKJS_1_1ObjectImp.html#74b4d9d83c7cda5b1f5f8f3d652f080c">putDirect</a>(<span class="stringliteral">"toFixed"</span>, <span class="keyword">new</span> <a class="code" href="classKJS_1_1NumberProtoFuncImp.html">NumberProtoFuncImp</a>(exec,funcProto,NumberProtoFuncImp::ToFixed, <a name="l00068"></a>00068 1,<span class="stringliteral">"toFixed"</span>),<a class="code" href="namespaceKJS.html#35559acccabfcecba8ec6f0b20e5f4ea7e6f4a4a185fbb63857888981cb6ecff">DontEnum</a>); <a name="l00069"></a>00069 <a class="code" href="classKJS_1_1ObjectImp.html#74b4d9d83c7cda5b1f5f8f3d652f080c">putDirect</a>(<span class="stringliteral">"toExponential"</span>,<span class="keyword">new</span> <a class="code" href="classKJS_1_1NumberProtoFuncImp.html">NumberProtoFuncImp</a>(exec,funcProto,NumberProtoFuncImp::ToExponential, <a name="l00070"></a>00070 1,<span class="stringliteral">"toExponential"</span>),<a class="code" href="namespaceKJS.html#35559acccabfcecba8ec6f0b20e5f4ea7e6f4a4a185fbb63857888981cb6ecff">DontEnum</a>); <a name="l00071"></a>00071 <a class="code" href="classKJS_1_1ObjectImp.html#74b4d9d83c7cda5b1f5f8f3d652f080c">putDirect</a>(<span class="stringliteral">"toPrecision"</span>,<span class="keyword">new</span> <a class="code" href="classKJS_1_1NumberProtoFuncImp.html">NumberProtoFuncImp</a>(exec,funcProto,NumberProtoFuncImp::ToPrecision, <a name="l00072"></a>00072 1,<span class="stringliteral">"toPrecision"</span>),<a class="code" href="namespaceKJS.html#35559acccabfcecba8ec6f0b20e5f4ea7e6f4a4a185fbb63857888981cb6ecff">DontEnum</a>); <a name="l00073"></a>00073 } <a name="l00074"></a>00074 <a name="l00075"></a>00075 <a name="l00076"></a>00076 <span class="comment">// ------------------------------ NumberProtoFuncImp ---------------------------</span> <a name="l00077"></a>00077 <a name="l00078"></a><a class="code" href="classKJS_1_1NumberProtoFuncImp.html#ddb809eea47f9dffa763b02c105d99d1">00078</a> <a class="code" href="classKJS_1_1NumberProtoFuncImp.html#ddb809eea47f9dffa763b02c105d99d1">NumberProtoFuncImp::NumberProtoFuncImp</a>(<a class="code" href="classKJS_1_1ExecState.html">ExecState</a> * <span class="comment">/*exec*/</span>, <a class="code" href="classKJS_1_1FunctionPrototypeImp.html">FunctionPrototypeImp</a> *funcProto, <a name="l00079"></a>00079 <span class="keywordtype">int</span> i, <span class="keywordtype">int</span> len, <span class="keyword">const</span> <a class="code" href="classKJS_1_1Identifier.html">Identifier</a> &_ident) <a name="l00080"></a>00080 : <a class="code" href="classKJS_1_1InternalFunctionImp.html">InternalFunctionImp</a>(funcProto), id(i) <a name="l00081"></a>00081 { <a name="l00082"></a>00082 <a class="code" href="classKJS_1_1Value.html">Value</a> protect(<span class="keyword">this</span>); <a name="l00083"></a>00083 <a class="code" href="classKJS_1_1ObjectImp.html#74b4d9d83c7cda5b1f5f8f3d652f080c">putDirect</a>(lengthPropertyName, len, <a class="code" href="namespaceKJS.html#35559acccabfcecba8ec6f0b20e5f4ea774893ae268010d56efe2eda918ddb81">DontDelete</a>|<a class="code" href="namespaceKJS.html#35559acccabfcecba8ec6f0b20e5f4ea045362566610fb4aabeeddfa89194057">ReadOnly</a>|<a class="code" href="namespaceKJS.html#35559acccabfcecba8ec6f0b20e5f4ea7e6f4a4a185fbb63857888981cb6ecff">DontEnum</a>); <a name="l00084"></a>00084 <a class="code" href="classKJS_1_1InternalFunctionImp.html#a8fe12432f8e4f138af6d7b3b21f9497">ident</a> = _ident; <a name="l00085"></a>00085 } <a name="l00086"></a>00086 <a name="l00087"></a>00087 <a name="l00088"></a><a class="code" href="classKJS_1_1NumberProtoFuncImp.html#877893f1795678370d936f8ae708969d">00088</a> <span class="keywordtype">bool</span> <a class="code" href="classKJS_1_1NumberProtoFuncImp.html#877893f1795678370d936f8ae708969d">NumberProtoFuncImp::implementsCall</a>()<span class="keyword"> const</span> <a name="l00089"></a>00089 <span class="keyword"></span>{ <a name="l00090"></a>00090 <span class="keywordflow">return</span> <span class="keyword">true</span>; <a name="l00091"></a>00091 } <a name="l00092"></a>00092 <a name="l00093"></a>00093 <span class="keyword">static</span> <a class="code" href="classKJS_1_1UString.html">UString</a> integer_part_noexp(<span class="keywordtype">double</span> d) <a name="l00094"></a>00094 { <a name="l00095"></a>00095 <span class="keywordtype">int</span> decimalPoint; <a name="l00096"></a>00096 <span class="keywordtype">int</span> sign; <a name="l00097"></a>00097 <span class="keywordtype">char</span> *result = kjs_dtoa(d, 0, 0, &decimalPoint, &sign, NULL); <a name="l00098"></a>00098 <span class="keywordtype">int</span> length = strlen(result); <a name="l00099"></a>00099 <a name="l00100"></a>00100 <a class="code" href="classKJS_1_1UString.html">UString</a> str = sign ? <span class="stringliteral">"-"</span> : <span class="stringliteral">""</span>; <a name="l00101"></a>00101 <span class="keywordflow">if</span> (decimalPoint == 9999) { <a name="l00102"></a>00102 str += <a class="code" href="classKJS_1_1UString.html">UString</a>(result); <a name="l00103"></a>00103 } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (decimalPoint <= 0) { <a name="l00104"></a>00104 str += <a class="code" href="classKJS_1_1UString.html">UString</a>(<span class="stringliteral">"0"</span>); <a name="l00105"></a>00105 } <span class="keywordflow">else</span> { <a name="l00106"></a>00106 <span class="keywordtype">char</span> *buf; <a name="l00107"></a>00107 <a name="l00108"></a>00108 <span class="keywordflow">if</span> (length <= decimalPoint) { <a name="l00109"></a>00109 buf = (<span class="keywordtype">char</span>*)malloc(decimalPoint+1); <a name="l00110"></a>00110 strcpy(buf,result); <a name="l00111"></a>00111 memset(buf+length,<span class="charliteral">'0'</span>,decimalPoint-length); <a name="l00112"></a>00112 } <span class="keywordflow">else</span> { <a name="l00113"></a>00113 buf = (<span class="keywordtype">char</span>*)malloc(decimalPoint+1); <a name="l00114"></a>00114 strncpy(buf,result,decimalPoint); <a name="l00115"></a>00115 } <a name="l00116"></a>00116 <a name="l00117"></a>00117 buf[decimalPoint] = <span class="charliteral">'\0'</span>; <a name="l00118"></a>00118 str += <a class="code" href="classKJS_1_1UString.html">UString</a>(buf); <a name="l00119"></a>00119 free(buf); <a name="l00120"></a>00120 } <a name="l00121"></a>00121 <a name="l00122"></a>00122 kjs_freedtoa(result); <a name="l00123"></a>00123 <a name="l00124"></a>00124 <span class="keywordflow">return</span> str; <a name="l00125"></a>00125 } <a name="l00126"></a>00126 <a name="l00127"></a>00127 <span class="keyword">static</span> <a class="code" href="classKJS_1_1UString.html">UString</a> char_sequence(<span class="keywordtype">char</span> c, <span class="keywordtype">int</span> count) <a name="l00128"></a>00128 { <a name="l00129"></a>00129 <span class="keywordtype">char</span> *buf = (<span class="keywordtype">char</span>*)malloc(count+1); <a name="l00130"></a>00130 memset(buf,c,count); <a name="l00131"></a>00131 buf[count] = <span class="charliteral">'\0'</span>; <a name="l00132"></a>00132 <a class="code" href="classKJS_1_1UString.html">UString</a> s(buf); <a name="l00133"></a>00133 free(buf); <a name="l00134"></a>00134 <span class="keywordflow">return</span> s; <a name="l00135"></a>00135 } <a name="l00136"></a>00136 <a name="l00137"></a>00137 <span class="comment">// ECMA 15.7.4.2 - 15.7.4.7</span> <a name="l00138"></a><a class="code" href="classKJS_1_1NumberProtoFuncImp.html#169adc4604edc4d9bc1076fe825a0451">00138</a> <a class="code" href="classKJS_1_1Value.html">Value</a> <a class="code" href="classKJS_1_1NumberProtoFuncImp.html#169adc4604edc4d9bc1076fe825a0451">NumberProtoFuncImp::call</a>(<a class="code" href="classKJS_1_1ExecState.html">ExecState</a> *exec, <a class="code" href="classKJS_1_1Object.html">Object</a> &thisObj, <span class="keyword">const</span> <a class="code" href="classKJS_1_1List.html">List</a> &args) <a name="l00139"></a>00139 { <a name="l00140"></a>00140 <a class="code" href="classKJS_1_1Value.html">Value</a> result; <a name="l00141"></a>00141 <a name="l00142"></a>00142 <span class="comment">// no generic function. "this" has to be a Number object</span> <a name="l00143"></a>00143 KJS_CHECK_THIS( <a class="code" href="classKJS_1_1NumberInstanceImp.html">NumberInstanceImp</a>, thisObj ); <a name="l00144"></a>00144 <a name="l00145"></a>00145 <span class="comment">// execute "toString()" or "valueOf()", respectively</span> <a name="l00146"></a>00146 <a class="code" href="classKJS_1_1Value.html">Value</a> v = thisObj.<a class="code" href="classKJS_1_1Object.html#e57ce80e0db9939378bdf4ce7d68b4bb">internalValue</a>(); <a name="l00147"></a>00147 <span class="keywordflow">switch</span> (<span class="keywordtype">id</span>) { <a name="l00148"></a>00148 <span class="keywordflow">case</span> ToString: { <a name="l00149"></a>00149 <span class="keywordtype">int</span> radix = 10; <a name="l00150"></a>00150 <span class="keywordflow">if</span> (!args.<a class="code" href="classKJS_1_1List.html#6356629da9e2c8cff0e0cbe9f7f61bac">isEmpty</a>() && args[0].type() != UndefinedType) <a name="l00151"></a>00151 radix = args[0].<a class="code" href="classKJS_1_1ValueImp.html#baac8ef3421556c50268d5848b7a3deb">toInteger</a>(exec); <a name="l00152"></a>00152 <span class="keywordflow">if</span> (radix < 2 || radix > 36 || radix == 10) <a name="l00153"></a>00153 result = <a class="code" href="classKJS_1_1String.html">String</a>(v.<a class="code" href="classKJS_1_1Value.html#8611b80d868cebf8dd4af2f966810874">toString</a>(exec)); <a name="l00154"></a>00154 <span class="keywordflow">else</span> { <a name="l00155"></a>00155 <span class="keyword">const</span> <span class="keywordtype">char</span> digits[] = <span class="stringliteral">"0123456789abcdefghijklmnopqrstuvwxyz"</span>; <a name="l00156"></a>00156 <span class="comment">// INT_MAX results in 1024 characters left of the dot with radix 2</span> <a name="l00157"></a>00157 <span class="comment">// give the same space on the right side. safety checks are in place</span> <a name="l00158"></a>00158 <span class="comment">// unless someone finds a precise rule.</span> <a name="l00159"></a>00159 <span class="keywordtype">char</span> s[2048 + 3]; <a name="l00160"></a>00160 <span class="keywordtype">double</span> x = v.<a class="code" href="classKJS_1_1Value.html#bc006ad65a05568bbebe2c63604766b8">toNumber</a>(exec); <a name="l00161"></a>00161 <span class="keywordflow">if</span> (<a class="code" href="namespaceKJS.html#ffd5d445b39f94f34d0a4c8604a9968a">isNaN</a>(x) || <a class="code" href="namespaceKJS.html#38d1e0537bfe55f248b6cc2cc560c38f">isInf</a>(x)) <a name="l00162"></a>00162 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1String.html">String</a>(<a class="code" href="classKJS_1_1UString.html#fa4fb189e0a0a6094b54516833eb0257">UString::from</a>(x)); <a name="l00163"></a>00163 <span class="comment">// apply algorithm on absolute value. add sign later.</span> <a name="l00164"></a>00164 <span class="keywordtype">bool</span> neg = <span class="keyword">false</span>; <a name="l00165"></a>00165 <span class="keywordflow">if</span> (x < 0.0) { <a name="l00166"></a>00166 neg = <span class="keyword">true</span>; <a name="l00167"></a>00167 x = -x; <a name="l00168"></a>00168 } <a name="l00169"></a>00169 <span class="comment">// convert integer portion</span> <a name="l00170"></a>00170 <span class="keywordtype">double</span> f = floor(x); <a name="l00171"></a>00171 <span class="keywordtype">double</span> d = f; <a name="l00172"></a>00172 <span class="keywordtype">char</span> *dot = s + <span class="keyword">sizeof</span>(s) / 2; <a name="l00173"></a>00173 <span class="keywordtype">char</span> *p = dot; <a name="l00174"></a>00174 *p = <span class="charliteral">'\0'</span>; <a name="l00175"></a>00175 <span class="keywordflow">do</span> { <a name="l00176"></a>00176 *--p = digits[int(fmod(d, <span class="keywordtype">double</span>(radix)))]; <a name="l00177"></a>00177 d /= radix; <a name="l00178"></a>00178 } <span class="keywordflow">while</span> ((d <= -1.0 || d >= 1.0) && p > s); <a name="l00179"></a>00179 <span class="comment">// any decimal fraction ?</span> <a name="l00180"></a>00180 d = x - f; <a name="l00181"></a>00181 <span class="keyword">const</span> <span class="keywordtype">double</span> eps = 0.001; <span class="comment">// TODO: guessed. base on radix ?</span> <a name="l00182"></a>00182 <span class="keywordflow">if</span> (d < -eps || d > eps) { <a name="l00183"></a>00183 *dot++ = <span class="charliteral">'.'</span>; <a name="l00184"></a>00184 <span class="keywordflow">do</span> { <a name="l00185"></a>00185 d *= radix; <a name="l00186"></a>00186 *dot++ = digits[int(d)]; <a name="l00187"></a>00187 d -= int(d); <a name="l00188"></a>00188 } <span class="keywordflow">while</span> ((d < -eps || d > eps) && dot - s < <span class="keywordtype">int</span>(<span class="keyword">sizeof</span>(s)) - 1); <a name="l00189"></a>00189 *dot = <span class="charliteral">'\0'</span>; <a name="l00190"></a>00190 } <a name="l00191"></a>00191 <span class="comment">// add sign if negative</span> <a name="l00192"></a>00192 <span class="keywordflow">if</span> (neg) <a name="l00193"></a>00193 *--p = <span class="charliteral">'-'</span>; <a name="l00194"></a>00194 result = <a class="code" href="classKJS_1_1String.html">String</a>(p); <a name="l00195"></a>00195 } <a name="l00196"></a>00196 <span class="keywordflow">break</span>; <a name="l00197"></a>00197 } <a name="l00198"></a>00198 <span class="keywordflow">case</span> ToLocaleString: <span class="comment">/* TODO */</span> <a name="l00199"></a>00199 result = <a class="code" href="classKJS_1_1String.html">String</a>(v.<a class="code" href="classKJS_1_1Value.html#8611b80d868cebf8dd4af2f966810874">toString</a>(exec)); <a name="l00200"></a>00200 <span class="keywordflow">break</span>; <a name="l00201"></a>00201 <span class="keywordflow">case</span> ValueOf: <a name="l00202"></a>00202 result = <a class="code" href="classKJS_1_1Number.html">Number</a>(v.<a class="code" href="classKJS_1_1Value.html#bc006ad65a05568bbebe2c63604766b8">toNumber</a>(exec)); <a name="l00203"></a>00203 <span class="keywordflow">break</span>; <a name="l00204"></a>00204 <span class="keywordflow">case</span> ToFixed: <a name="l00205"></a>00205 { <a name="l00206"></a>00206 <span class="comment">// FIXME: firefox works for all values, not just 0..20. This includes</span> <a name="l00207"></a>00207 <span class="comment">// NaN, infinity, undefined, etc. This is just a hack to pass our regression</span> <a name="l00208"></a>00208 <span class="comment">// suite.</span> <a name="l00209"></a>00209 <a class="code" href="classKJS_1_1Value.html">Value</a> fractionDigits = args[0]; <a name="l00210"></a>00210 <span class="keywordtype">int</span> f = -1; <a name="l00211"></a>00211 <span class="keywordtype">double</span> fd = fractionDigits.<a class="code" href="classKJS_1_1Value.html#bc006ad65a05568bbebe2c63604766b8">toNumber</a>(exec); <a name="l00212"></a>00212 <span class="keywordflow">if</span> (<a class="code" href="namespaceKJS.html#ffd5d445b39f94f34d0a4c8604a9968a">isNaN</a>(fd)) { <a name="l00213"></a>00213 f = 0; <a name="l00214"></a>00214 } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!<a class="code" href="namespaceKJS.html#38d1e0537bfe55f248b6cc2cc560c38f">isInf</a>(fd)) { <a name="l00215"></a>00215 f = int(fd); <a name="l00216"></a>00216 } <a name="l00217"></a>00217 <span class="keywordflow">if</span> (f < 0 || f > 20) { <a name="l00218"></a>00218 <a class="code" href="classKJS_1_1Object.html">Object</a> err = <a class="code" href="classKJS_1_1Error.html#d90381467b6e9fbae92c0975852048f2">Error::create</a>(exec,RangeError); <a name="l00219"></a>00219 exec-><a class="code" href="classKJS_1_1ExecState.html#4a8d0b1e4cebdf8265125163065cc7d9">setException</a>(err); <a name="l00220"></a>00220 <span class="keywordflow">return</span> err; <a name="l00221"></a>00221 } <a name="l00222"></a>00222 <a name="l00223"></a>00223 <span class="keywordtype">double</span> x = v.<a class="code" href="classKJS_1_1Value.html#bc006ad65a05568bbebe2c63604766b8">toNumber</a>(exec); <a name="l00224"></a>00224 <span class="keywordflow">if</span> (<a class="code" href="namespaceKJS.html#ffd5d445b39f94f34d0a4c8604a9968a">isNaN</a>(x)) <a name="l00225"></a>00225 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1String.html">String</a>(<span class="stringliteral">"NaN"</span>); <a name="l00226"></a>00226 <a name="l00227"></a>00227 <a class="code" href="classKJS_1_1UString.html">UString</a> s = <span class="stringliteral">""</span>; <a name="l00228"></a>00228 <span class="keywordflow">if</span> (x < 0) { <a name="l00229"></a>00229 s += <span class="stringliteral">"-"</span>; <a name="l00230"></a>00230 x = -x; <a name="l00231"></a>00231 } <a name="l00232"></a>00232 <a name="l00233"></a>00233 <span class="keywordflow">if</span> (x >= 1e21) <a name="l00234"></a>00234 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1String.html">String</a>(s+<a class="code" href="classKJS_1_1UString.html#fa4fb189e0a0a6094b54516833eb0257">UString::from</a>(x)); <a name="l00235"></a>00235 <a name="l00236"></a>00236 <span class="keywordtype">double</span> n = floor(x*pow(10.0,f)); <a name="l00237"></a>00237 <span class="keywordflow">if</span> (fabs(n/pow(10.0,f)-x) > fabs((n+1)/pow(10.0,f)-x)) <a name="l00238"></a>00238 n++; <a name="l00239"></a>00239 <a name="l00240"></a>00240 <a class="code" href="classKJS_1_1UString.html">UString</a> m = integer_part_noexp(n); <a name="l00241"></a>00241 <a name="l00242"></a>00242 <span class="keywordtype">int</span> k = m.<a class="code" href="classKJS_1_1UString.html#43b493879fd9d2d8e13039d1610cb3b9">size</a>(); <a name="l00243"></a>00243 <span class="keywordflow">if</span> (m.<a class="code" href="classKJS_1_1UString.html#43b493879fd9d2d8e13039d1610cb3b9">size</a>() < f) { <a name="l00244"></a>00244 <a class="code" href="classKJS_1_1UString.html">UString</a> z = <span class="stringliteral">""</span>; <a name="l00245"></a>00245 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < f+1-k; i++) <a name="l00246"></a>00246 z += <span class="stringliteral">"0"</span>; <a name="l00247"></a>00247 m = z + m; <a name="l00248"></a>00248 k = f + 1; <a name="l00249"></a>00249 assert(k == m.size()); <a name="l00250"></a>00250 } <a name="l00251"></a>00251 <span class="keywordflow">if</span> (k-f < m.<a class="code" href="classKJS_1_1UString.html#43b493879fd9d2d8e13039d1610cb3b9">size</a>()) <a name="l00252"></a>00252 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1String.html">String</a>(s+m.<a class="code" href="classKJS_1_1UString.html#9803bb317f9ad51ce189c2f688cf1941">substr</a>(0,k-f)+<span class="stringliteral">"."</span>+m.<a class="code" href="classKJS_1_1UString.html#9803bb317f9ad51ce189c2f688cf1941">substr</a>(k-f)); <a name="l00253"></a>00253 <span class="keywordflow">else</span> <a name="l00254"></a>00254 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1String.html">String</a>(s+m.<a class="code" href="classKJS_1_1UString.html#9803bb317f9ad51ce189c2f688cf1941">substr</a>(0,k-f)); <a name="l00255"></a>00255 } <a name="l00256"></a>00256 <span class="keywordflow">case</span> ToExponential: { <a name="l00257"></a>00257 <span class="keywordtype">double</span> x = v.<a class="code" href="classKJS_1_1Value.html#bc006ad65a05568bbebe2c63604766b8">toNumber</a>(exec); <a name="l00258"></a>00258 <a name="l00259"></a>00259 <span class="keywordflow">if</span> (<a class="code" href="namespaceKJS.html#ffd5d445b39f94f34d0a4c8604a9968a">isNaN</a>(x) || <a class="code" href="namespaceKJS.html#38d1e0537bfe55f248b6cc2cc560c38f">isInf</a>(x)) <a name="l00260"></a>00260 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1String.html">String</a>(<a class="code" href="classKJS_1_1UString.html#fa4fb189e0a0a6094b54516833eb0257">UString::from</a>(x)); <a name="l00261"></a>00261 <a name="l00262"></a>00262 <span class="keywordtype">int</span> f = 1; <a name="l00263"></a>00263 <a class="code" href="classKJS_1_1Value.html">Value</a> fractionDigits = args[0]; <a name="l00264"></a>00264 <span class="keywordflow">if</span> (args.<a class="code" href="classKJS_1_1List.html#69835b1e6671235343b0a17923b92c43">size</a>() > 0) { <a name="l00265"></a>00265 f = fractionDigits.<a class="code" href="classKJS_1_1Value.html#c08ef408068ef1a9018559079ad3022e">toInteger</a>(exec); <a name="l00266"></a>00266 <span class="keywordflow">if</span> (f < 0 || f > 20) { <a name="l00267"></a>00267 <a class="code" href="classKJS_1_1Object.html">Object</a> err = <a class="code" href="classKJS_1_1Error.html#d90381467b6e9fbae92c0975852048f2">Error::create</a>(exec,RangeError); <a name="l00268"></a>00268 exec-><a class="code" href="classKJS_1_1ExecState.html#4a8d0b1e4cebdf8265125163065cc7d9">setException</a>(err); <a name="l00269"></a>00269 <span class="keywordflow">return</span> err; <a name="l00270"></a>00270 } <a name="l00271"></a>00271 } <a name="l00272"></a>00272 <a name="l00273"></a>00273 <span class="keywordtype">int</span> decimalAdjust = 0; <a name="l00274"></a>00274 <span class="keywordflow">if</span> (!fractionDigits.<a class="code" href="classKJS_1_1Value.html#1704785fc8140c274b0e7ec03eb0dfe2">isA</a>(UndefinedType)) { <a name="l00275"></a>00275 <span class="keywordtype">double</span> logx = floor(log10(x)); <a name="l00276"></a>00276 x /= pow(10.0,logx); <a name="l00277"></a>00277 <span class="keywordtype">double</span> fx = floor(x*pow(10.0,f))/pow(10.0,f); <a name="l00278"></a>00278 <span class="keywordtype">double</span> cx = ceil(x*pow(10.0,f))/pow(10.0,f); <a name="l00279"></a>00279 <a name="l00280"></a>00280 <span class="keywordflow">if</span> (fabs(fx-x) < fabs(cx-x)) <a name="l00281"></a>00281 x = fx; <a name="l00282"></a>00282 <span class="keywordflow">else</span> <a name="l00283"></a>00283 x = cx; <a name="l00284"></a>00284 <a name="l00285"></a>00285 decimalAdjust = int(logx); <a name="l00286"></a>00286 } <a name="l00287"></a>00287 <a name="l00288"></a>00288 <span class="keywordtype">char</span> buf[80]; <a name="l00289"></a>00289 <span class="keywordtype">int</span> decimalPoint; <a name="l00290"></a>00290 <span class="keywordtype">int</span> sign; <a name="l00291"></a>00291 <a name="l00292"></a>00292 <span class="keywordflow">if</span> (<a class="code" href="namespaceKJS.html#ffd5d445b39f94f34d0a4c8604a9968a">isNaN</a>(x)) <a name="l00293"></a>00293 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1String.html">String</a>(<span class="stringliteral">"NaN"</span>); <a name="l00294"></a>00294 <a name="l00295"></a>00295 <span class="keywordtype">char</span> *result = kjs_dtoa(x, 0, 0, &decimalPoint, &sign, NULL); <a name="l00296"></a>00296 <span class="keywordtype">int</span> length = strlen(result); <a name="l00297"></a>00297 decimalPoint += decimalAdjust; <a name="l00298"></a>00298 <a name="l00299"></a>00299 <span class="keywordtype">int</span> i = 0; <a name="l00300"></a>00300 <span class="keywordflow">if</span> (sign) { <a name="l00301"></a>00301 buf[i++] = <span class="charliteral">'-'</span>; <a name="l00302"></a>00302 } <a name="l00303"></a>00303 <a name="l00304"></a>00304 <span class="keywordflow">if</span> (decimalPoint == 999) { <a name="l00305"></a>00305 strcpy(buf + i, result); <a name="l00306"></a>00306 } <span class="keywordflow">else</span> { <a name="l00307"></a>00307 buf[i++] = result[0]; <a name="l00308"></a>00308 <a name="l00309"></a>00309 <span class="keywordflow">if</span> (fractionDigits.<a class="code" href="classKJS_1_1Value.html#1704785fc8140c274b0e7ec03eb0dfe2">isA</a>(UndefinedType)) <a name="l00310"></a>00310 f = length-1; <a name="l00311"></a>00311 <a name="l00312"></a>00312 <span class="keywordflow">if</span> (length > 1 && f > 0) { <a name="l00313"></a>00313 buf[i++] = <span class="charliteral">'.'</span>; <a name="l00314"></a>00314 <span class="keywordtype">int</span> haveFDigits = length-1; <a name="l00315"></a>00315 <span class="keywordflow">if</span> (f < haveFDigits) { <a name="l00316"></a>00316 strncpy(buf+i,result+1, f); <a name="l00317"></a>00317 i += f; <a name="l00318"></a>00318 } <a name="l00319"></a>00319 <span class="keywordflow">else</span> { <a name="l00320"></a>00320 strcpy(buf+i,result+1); <a name="l00321"></a>00321 i += length-1; <a name="l00322"></a>00322 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> j = 0; j < f-haveFDigits; j++) <a name="l00323"></a>00323 buf[i++] = <span class="charliteral">'0'</span>; <a name="l00324"></a>00324 } <a name="l00325"></a>00325 } <a name="l00326"></a>00326 <a name="l00327"></a>00327 buf[i++] = <span class="charliteral">'e'</span>; <a name="l00328"></a>00328 buf[i++] = (decimalPoint >= 0) ? <span class="charliteral">'+'</span> : <span class="charliteral">'-'</span>; <a name="l00329"></a>00329 <span class="comment">// decimalPoint can't be more than 3 digits decimal given the</span> <a name="l00330"></a>00330 <span class="comment">// nature of float representation</span> <a name="l00331"></a>00331 <span class="keywordtype">int</span> exponential = decimalPoint - 1; <a name="l00332"></a>00332 <span class="keywordflow">if</span> (exponential < 0) { <a name="l00333"></a>00333 exponential = exponential * -1; <a name="l00334"></a>00334 } <a name="l00335"></a>00335 <span class="keywordflow">if</span> (exponential >= 100) { <a name="l00336"></a>00336 buf[i++] = <span class="charliteral">'0'</span> + exponential / 100; <a name="l00337"></a>00337 } <a name="l00338"></a>00338 <span class="keywordflow">if</span> (exponential >= 10) { <a name="l00339"></a>00339 buf[i++] = <span class="charliteral">'0'</span> + (exponential % 100) / 10; <a name="l00340"></a>00340 } <a name="l00341"></a>00341 buf[i++] = <span class="charliteral">'0'</span> + exponential % 10; <a name="l00342"></a>00342 buf[i++] = <span class="charliteral">'\0'</span>; <a name="l00343"></a>00343 } <a name="l00344"></a>00344 <a name="l00345"></a>00345 assert(i <= 80); <a name="l00346"></a>00346 <a name="l00347"></a>00347 kjs_freedtoa(result); <a name="l00348"></a>00348 <a name="l00349"></a>00349 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1String.html">String</a>(<a class="code" href="classKJS_1_1UString.html">UString</a>(buf)); <a name="l00350"></a>00350 } <a name="l00351"></a>00351 <span class="keywordflow">case</span> ToPrecision: <a name="l00352"></a>00352 { <a name="l00353"></a>00353 <span class="keywordtype">int</span> e = 0; <a name="l00354"></a>00354 <a class="code" href="classKJS_1_1UString.html">UString</a> m; <a name="l00355"></a>00355 <a name="l00356"></a>00356 <span class="keywordtype">int</span> p = args[0].toInteger(exec); <a name="l00357"></a>00357 <span class="keywordtype">double</span> x = v.<a class="code" href="classKJS_1_1Value.html#bc006ad65a05568bbebe2c63604766b8">toNumber</a>(exec); <a name="l00358"></a>00358 <span class="keywordflow">if</span> (args[0].isA(UndefinedType) || <a class="code" href="namespaceKJS.html#ffd5d445b39f94f34d0a4c8604a9968a">isNaN</a>(x) || <a class="code" href="namespaceKJS.html#38d1e0537bfe55f248b6cc2cc560c38f">isInf</a>(x)) <a name="l00359"></a>00359 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1String.html">String</a>(v.<a class="code" href="classKJS_1_1Value.html#8611b80d868cebf8dd4af2f966810874">toString</a>(exec)); <a name="l00360"></a>00360 <a name="l00361"></a>00361 <a class="code" href="classKJS_1_1UString.html">UString</a> s = <span class="stringliteral">""</span>; <a name="l00362"></a>00362 <span class="keywordflow">if</span> (x < 0) { <a name="l00363"></a>00363 s = <span class="stringliteral">"-"</span>; <a name="l00364"></a>00364 x = -x; <a name="l00365"></a>00365 } <a name="l00366"></a>00366 <a name="l00367"></a>00367 <span class="keywordflow">if</span> (p < 1 || p > 21) { <a name="l00368"></a>00368 <a class="code" href="classKJS_1_1Object.html">Object</a> err = <a class="code" href="classKJS_1_1Error.html#d90381467b6e9fbae92c0975852048f2">Error::create</a>(exec, RangeError, <a name="l00369"></a>00369 <span class="stringliteral">"toPrecision() argument must be between 1 and 21"</span>); <a name="l00370"></a>00370 exec->setException(err); <a name="l00371"></a>00371 <span class="keywordflow">return</span> err; <a name="l00372"></a>00372 } <a name="l00373"></a>00373 <a name="l00374"></a>00374 <span class="keywordflow">if</span> (x != 0) { <a name="l00375"></a>00375 e = int(log10(x)); <a name="l00376"></a>00376 <span class="keywordtype">double</span> n = floor(x/pow(10.0,e-p+1)); <a name="l00377"></a>00377 <span class="keywordflow">if</span> (n < pow(10.0,p-1)) { <a name="l00378"></a>00378 e = e - 1; <a name="l00379"></a>00379 n = floor(x/pow(10.0,e-p+1)); <a name="l00380"></a>00380 } <a name="l00381"></a>00381 <a name="l00382"></a>00382 <span class="keywordflow">if</span> (fabs((n+1)*pow(10.0,e-p+1)-x) < fabs(n*pow(10.0,e-p+1)-x)) <a name="l00383"></a>00383 n++; <a name="l00384"></a>00384 assert(pow(10.0,p-1) <= n); <a name="l00385"></a>00385 assert(n < pow(10.0,p)); <a name="l00386"></a>00386 <a name="l00387"></a>00387 m = integer_part_noexp(n); <a name="l00388"></a>00388 <span class="keywordflow">if</span> (e < -6 || e >= p) { <a name="l00389"></a>00389 <span class="keywordflow">if</span> (m.<a class="code" href="classKJS_1_1UString.html#43b493879fd9d2d8e13039d1610cb3b9">size</a>() > 1) <a name="l00390"></a>00390 m = m.<a class="code" href="classKJS_1_1UString.html#9803bb317f9ad51ce189c2f688cf1941">substr</a>(0,1)+<span class="stringliteral">"."</span>+m.<a class="code" href="classKJS_1_1UString.html#9803bb317f9ad51ce189c2f688cf1941">substr</a>(1); <a name="l00391"></a>00391 <span class="keywordflow">if</span> (e >= 0) <a name="l00392"></a>00392 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1String.html">String</a>(s+m+<span class="stringliteral">"e+"</span>+<a class="code" href="classKJS_1_1UString.html#fa4fb189e0a0a6094b54516833eb0257">UString::from</a>(e)); <a name="l00393"></a>00393 <span class="keywordflow">else</span> <a name="l00394"></a>00394 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1String.html">String</a>(s+m+<span class="stringliteral">"e-"</span>+<a class="code" href="classKJS_1_1UString.html#fa4fb189e0a0a6094b54516833eb0257">UString::from</a>(-e)); <a name="l00395"></a>00395 } <a name="l00396"></a>00396 } <a name="l00397"></a>00397 <span class="keywordflow">else</span> { <a name="l00398"></a>00398 m = char_sequence(<span class="charliteral">'0'</span>,p); <a name="l00399"></a>00399 e = 0; <a name="l00400"></a>00400 } <a name="l00401"></a>00401 <a name="l00402"></a>00402 <span class="keywordflow">if</span> (e == p-1) { <a name="l00403"></a>00403 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1String.html">String</a>(s+m); <a name="l00404"></a>00404 } <a name="l00405"></a>00405 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (e >= 0) { <a name="l00406"></a>00406 <span class="keywordflow">if</span> (e+1 < m.<a class="code" href="classKJS_1_1UString.html#43b493879fd9d2d8e13039d1610cb3b9">size</a>()) <a name="l00407"></a>00407 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1String.html">String</a>(s+m.<a class="code" href="classKJS_1_1UString.html#9803bb317f9ad51ce189c2f688cf1941">substr</a>(0,e+1)+<span class="stringliteral">"."</span>+m.<a class="code" href="classKJS_1_1UString.html#9803bb317f9ad51ce189c2f688cf1941">substr</a>(e+1)); <a name="l00408"></a>00408 <span class="keywordflow">else</span> <a name="l00409"></a>00409 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1String.html">String</a>(s+m.<a class="code" href="classKJS_1_1UString.html#9803bb317f9ad51ce189c2f688cf1941">substr</a>(0,e+1)); <a name="l00410"></a>00410 } <a name="l00411"></a>00411 <span class="keywordflow">else</span> { <a name="l00412"></a>00412 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1String.html">String</a>(s+<span class="stringliteral">"0."</span>+char_sequence(<span class="charliteral">'0'</span>,-(e+1))+m); <a name="l00413"></a>00413 } <a name="l00414"></a>00414 } <a name="l00415"></a>00415 } <a name="l00416"></a>00416 <a name="l00417"></a>00417 <span class="keywordflow">return</span> result; <a name="l00418"></a>00418 } <a name="l00419"></a>00419 <a name="l00420"></a>00420 <span class="comment">// ------------------------------ NumberObjectImp ------------------------------</span> <a name="l00421"></a>00421 <a name="l00422"></a>00422 <span class="keyword">const</span> <a class="code" href="structKJS_1_1ClassInfo.html">ClassInfo</a> <a class="code" href="classKJS_1_1NumberObjectImp.html#3ae136b8d02883253c61658e67e29b88">NumberObjectImp::info</a> = {<span class="stringliteral">"Function"</span>, &<a class="code" href="classKJS_1_1InternalFunctionImp.html#532e3c58f38771a4a9e8d4c34f61850e">InternalFunctionImp::info</a>, &<a class="code" href="namespaceKJS.html#cbf1afafe373fb094a1a70af6d7d31e1">numberTable</a>, 0}; <a name="l00423"></a>00423 <a name="l00424"></a>00424 <span class="comment">/* Source for number_object.lut.h</span> <a name="l00425"></a>00425 <span class="comment">@begin numberTable 5</span> <a name="l00426"></a>00426 <span class="comment"> NaN NumberObjectImp::NaNValue DontEnum|DontDelete|ReadOnly</span> <a name="l00427"></a>00427 <span class="comment"> NEGATIVE_INFINITY NumberObjectImp::NegInfinity DontEnum|DontDelete|ReadOnly</span> <a name="l00428"></a>00428 <span class="comment"> POSITIVE_INFINITY NumberObjectImp::PosInfinity DontEnum|DontDelete|ReadOnly</span> <a name="l00429"></a>00429 <span class="comment"> MAX_VALUE NumberObjectImp::MaxValue DontEnum|DontDelete|ReadOnly</span> <a name="l00430"></a>00430 <span class="comment"> MIN_VALUE NumberObjectImp::MinValue DontEnum|DontDelete|ReadOnly</span> <a name="l00431"></a>00431 <span class="comment">@end</span> <a name="l00432"></a>00432 <span class="comment">*/</span> <a name="l00433"></a><a class="code" href="classKJS_1_1NumberObjectImp.html#c4d44eeb695c14e733208a671dc531a5">00433</a> <a class="code" href="classKJS_1_1NumberObjectImp.html#c4d44eeb695c14e733208a671dc531a5">NumberObjectImp::NumberObjectImp</a>(<a class="code" href="classKJS_1_1ExecState.html">ExecState</a> * <span class="comment">/*exec*/</span>, <a name="l00434"></a>00434 <a class="code" href="classKJS_1_1FunctionPrototypeImp.html">FunctionPrototypeImp</a> *funcProto, <a name="l00435"></a>00435 <a class="code" href="classKJS_1_1NumberPrototypeImp.html">NumberPrototypeImp</a> *numberProto) <a name="l00436"></a>00436 : <a class="code" href="classKJS_1_1InternalFunctionImp.html">InternalFunctionImp</a>(funcProto) <a name="l00437"></a>00437 { <a name="l00438"></a>00438 <a class="code" href="classKJS_1_1Value.html">Value</a> protect(<span class="keyword">this</span>); <a name="l00439"></a>00439 <span class="comment">// Number.Prototype</span> <a name="l00440"></a>00440 <a class="code" href="classKJS_1_1ObjectImp.html#74b4d9d83c7cda5b1f5f8f3d652f080c">putDirect</a>(prototypePropertyName, numberProto, <a class="code" href="namespaceKJS.html#35559acccabfcecba8ec6f0b20e5f4ea7e6f4a4a185fbb63857888981cb6ecff">DontEnum</a>|<a class="code" href="namespaceKJS.html#35559acccabfcecba8ec6f0b20e5f4ea774893ae268010d56efe2eda918ddb81">DontDelete</a>|<a class="code" href="namespaceKJS.html#35559acccabfcecba8ec6f0b20e5f4ea045362566610fb4aabeeddfa89194057">ReadOnly</a>); <a name="l00441"></a>00441 <a name="l00442"></a>00442 <span class="comment">// no. of arguments for constructor</span> <a name="l00443"></a>00443 <a class="code" href="classKJS_1_1ObjectImp.html#74b4d9d83c7cda5b1f5f8f3d652f080c">putDirect</a>(lengthPropertyName, <a class="code" href="classKJS_1_1NumberImp.html#a31e0a6254f6fc9d52389e5a7de1ce85">NumberImp::one</a>(), <a class="code" href="namespaceKJS.html#35559acccabfcecba8ec6f0b20e5f4ea045362566610fb4aabeeddfa89194057">ReadOnly</a>|<a class="code" href="namespaceKJS.html#35559acccabfcecba8ec6f0b20e5f4ea774893ae268010d56efe2eda918ddb81">DontDelete</a>|<a class="code" href="namespaceKJS.html#35559acccabfcecba8ec6f0b20e5f4ea7e6f4a4a185fbb63857888981cb6ecff">DontEnum</a>); <a name="l00444"></a>00444 } <a name="l00445"></a>00445 <a name="l00446"></a><a class="code" href="classKJS_1_1NumberObjectImp.html#8fafda3ef3d9ee54c37a38e8ea99d0dc">00446</a> <a class="code" href="classKJS_1_1Value.html">Value</a> <a class="code" href="classKJS_1_1NumberObjectImp.html#8fafda3ef3d9ee54c37a38e8ea99d0dc">NumberObjectImp::get</a>(<a class="code" href="classKJS_1_1ExecState.html">ExecState</a> *exec, <span class="keyword">const</span> <a class="code" href="classKJS_1_1Identifier.html">Identifier</a> &propertyName)<span class="keyword"> const</span> <a name="l00447"></a>00447 <span class="keyword"></span>{ <a name="l00448"></a>00448 <span class="keywordflow">return</span> lookupGetValue<NumberObjectImp, InternalFunctionImp>( exec, propertyName, &<a class="code" href="namespaceKJS.html#cbf1afafe373fb094a1a70af6d7d31e1">numberTable</a>, this ); <a name="l00449"></a>00449 } <a name="l00450"></a>00450 <a name="l00451"></a><a class="code" href="classKJS_1_1NumberObjectImp.html#de02aa143ae4cf275771d02184c832f2">00451</a> <a class="code" href="classKJS_1_1Value.html">Value</a> <a class="code" href="classKJS_1_1NumberObjectImp.html#de02aa143ae4cf275771d02184c832f2">NumberObjectImp::getValueProperty</a>(<a class="code" href="classKJS_1_1ExecState.html">ExecState</a> *, <span class="keywordtype">int</span> token)<span class="keyword"> const</span> <a name="l00452"></a>00452 <span class="keyword"></span>{ <a name="l00453"></a>00453 <span class="comment">// ECMA 15.7.3</span> <a name="l00454"></a>00454 <span class="keywordflow">switch</span>(token) { <a name="l00455"></a>00455 <span class="keywordflow">case</span> NaNValue: <a name="l00456"></a>00456 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Number.html">Number</a>(<a class="code" href="namespaceKJS.html#1932e8973511234bad8c5a1e5a3b024e">NaN</a>); <a name="l00457"></a>00457 <span class="keywordflow">case</span> NegInfinity: <a name="l00458"></a>00458 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Number.html">Number</a>(-<a class="code" href="namespaceKJS.html#c796616c2facb5894160ebd5eed49fda">Inf</a>); <a name="l00459"></a>00459 <span class="keywordflow">case</span> PosInfinity: <a name="l00460"></a>00460 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Number.html">Number</a>(<a class="code" href="namespaceKJS.html#c796616c2facb5894160ebd5eed49fda">Inf</a>); <a name="l00461"></a>00461 <span class="keywordflow">case</span> MaxValue: <a name="l00462"></a>00462 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Number.html">Number</a>(1.7976931348623157E+308); <a name="l00463"></a>00463 <span class="keywordflow">case</span> MinValue: <a name="l00464"></a>00464 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Number.html">Number</a>(5E-324); <a name="l00465"></a>00465 } <a name="l00466"></a>00466 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Null.html">Null</a>(); <a name="l00467"></a>00467 } <a name="l00468"></a>00468 <a name="l00469"></a><a class="code" href="classKJS_1_1NumberObjectImp.html#849a1b6a3ef211820f2a6b1c947f1364">00469</a> <span class="keywordtype">bool</span> <a class="code" href="classKJS_1_1NumberObjectImp.html#849a1b6a3ef211820f2a6b1c947f1364">NumberObjectImp::implementsConstruct</a>()<span class="keyword"> const</span> <a name="l00470"></a>00470 <span class="keyword"></span>{ <a name="l00471"></a>00471 <span class="keywordflow">return</span> <span class="keyword">true</span>; <a name="l00472"></a>00472 } <a name="l00473"></a>00473 <a name="l00474"></a>00474 <a name="l00475"></a>00475 <span class="comment">// ECMA 15.7.1</span> <a name="l00476"></a><a class="code" href="classKJS_1_1NumberObjectImp.html#72b940948357998ae000854b71e081f2">00476</a> <a class="code" href="classKJS_1_1Object.html">Object</a> <a class="code" href="classKJS_1_1NumberObjectImp.html#72b940948357998ae000854b71e081f2">NumberObjectImp::construct</a>(<a class="code" href="classKJS_1_1ExecState.html">ExecState</a> *exec, <span class="keyword">const</span> <a class="code" href="classKJS_1_1List.html">List</a> &args) <a name="l00477"></a>00477 { <a name="l00478"></a>00478 <a class="code" href="classKJS_1_1ObjectImp.html">ObjectImp</a> *proto = exec-><a class="code" href="classKJS_1_1ExecState.html#f210e5fad440d91a939e71ccb2bf6be7">lexicalInterpreter</a>()-><a class="code" href="classKJS_1_1Interpreter.html#be07b8e3809048976edae972183e4e87">builtinNumberPrototype</a>().<a class="code" href="classKJS_1_1Object.html#9828723f062adc8b384578f923a1230d">imp</a>(); <a name="l00479"></a>00479 <a class="code" href="classKJS_1_1Object.html">Object</a> obj(<span class="keyword">new</span> <a class="code" href="classKJS_1_1NumberInstanceImp.html">NumberInstanceImp</a>(proto)); <a name="l00480"></a>00480 <a name="l00481"></a>00481 <a class="code" href="classKJS_1_1Number.html">Number</a> n; <a name="l00482"></a>00482 <span class="keywordflow">if</span> (args.<a class="code" href="classKJS_1_1List.html#6356629da9e2c8cff0e0cbe9f7f61bac">isEmpty</a>()) <a name="l00483"></a>00483 n = <a class="code" href="classKJS_1_1Number.html">Number</a>(0); <a name="l00484"></a>00484 <span class="keywordflow">else</span> <a name="l00485"></a>00485 n = args[0].toNumber(exec); <a name="l00486"></a>00486 <a name="l00487"></a>00487 obj.<a class="code" href="classKJS_1_1Object.html#467d7a34694e82573c77fda53fffa50e">setInternalValue</a>(n); <a name="l00488"></a>00488 <a name="l00489"></a>00489 <span class="keywordflow">return</span> obj; <a name="l00490"></a>00490 } <a name="l00491"></a>00491 <a name="l00492"></a><a class="code" href="classKJS_1_1NumberObjectImp.html#c523135e4ccb1ea22143d4e8887e50fc">00492</a> <span class="keywordtype">bool</span> <a class="code" href="classKJS_1_1NumberObjectImp.html#c523135e4ccb1ea22143d4e8887e50fc">NumberObjectImp::implementsCall</a>()<span class="keyword"> const</span> <a name="l00493"></a>00493 <span class="keyword"></span>{ <a name="l00494"></a>00494 <span class="keywordflow">return</span> <span class="keyword">true</span>; <a name="l00495"></a>00495 } <a name="l00496"></a>00496 <a name="l00497"></a>00497 <span class="comment">// ECMA 15.7.2</span> <a name="l00498"></a><a class="code" href="classKJS_1_1NumberObjectImp.html#05b946e0471326968d795f9c639ed44a">00498</a> <a class="code" href="classKJS_1_1Value.html">Value</a> <a class="code" href="classKJS_1_1NumberObjectImp.html#05b946e0471326968d795f9c639ed44a">NumberObjectImp::call</a>(<a class="code" href="classKJS_1_1ExecState.html">ExecState</a> *exec, <a class="code" href="classKJS_1_1Object.html">Object</a> &<span class="comment">/*thisObj*/</span>, <span class="keyword">const</span> <a class="code" href="classKJS_1_1List.html">List</a> &args) <a name="l00499"></a>00499 { <a name="l00500"></a>00500 <span class="keywordflow">if</span> (args.<a class="code" href="classKJS_1_1List.html#6356629da9e2c8cff0e0cbe9f7f61bac">isEmpty</a>()) <a name="l00501"></a>00501 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Number.html">Number</a>(0); <a name="l00502"></a>00502 <span class="keywordflow">else</span> <a name="l00503"></a>00503 <span class="keywordflow">return</span> <a class="code" href="classKJS_1_1Number.html">Number</a>(args[0].<a class="code" href="classKJS_1_1ObjectImp.html#bf06eced6fc642cefcce7a30d95f7836">toNumber</a>(exec)); <a name="l00504"></a>00504 } </pre></div> </div></div> </td> </tr> <tr> <td valign="top" id="leftmenu" 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value="classKJS_1_1CaseBlockNode.html">kjs::caseblocknode</option>, <option value="classKJS_1_1CaseClauseNode.html">kjs::caseclausenode</option>, <option value="classKJS_1_1CatchNode.html">kjs::catchnode</option>, <option value="classKJS_1_1ClauseListNode.html">kjs::clauselistnode</option>, <option value="classKJS_1_1Collector.html">kjs::collector</option>, <option value="classKJS_1_1CommaNode.html">kjs::commanode</option>, <option value="classKJS_1_1Completion.html">kjs::completion</option>, <option value="classKJS_1_1ConditionalNode.html">kjs::conditionalnode</option>, <option value="classKJS_1_1Context.html">kjs::context</option>, <option value="classKJS_1_1ContextImp.html">kjs::contextimp</option>, <option value="classKJS_1_1ContinueNode.html">kjs::continuenode</option>, <option value="classKJS_1_1CString.html">kjs::cstring</option>, <option value="classKJS_1_1DateInstanceImp.html">kjs::dateinstanceimp</option>, <option 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value="classKJS_1_1Lexer.html">kjs::lexer</option>, <option value="classKJS_1_1List.html">kjs::list</option>, <option value="classKJS_1_1ListIterator.html">kjs::listiterator</option>, <option value="classKJS_1_1LogicalNotNode.html">kjs::logicalnotnode</option>, <option value="classKJS_1_1Lookup.html">kjs::lookup</option>, <option value="classKJS_1_1MathFuncImp.html">kjs::mathfuncimp</option>, <option value="classKJS_1_1MathObjectImp.html">kjs::mathobjectimp</option>, <option value="classKJS_1_1MultNode.html">kjs::multnode</option>, <option value="classKJS_1_1NativeErrorImp.html">kjs::nativeerrorimp</option>, <option value="classKJS_1_1NativeErrorPrototypeImp.html">kjs::nativeerrorprototypeimp</option>, <option value="classKJS_1_1NegateNode.html">kjs::negatenode</option>, <option value="classKJS_1_1NewExprNode.html">kjs::newexprnode</option>, <option value="classKJS_1_1Node.html">kjs::node</option>, <option value="classKJS_1_1Null.html">kjs::null</option>, <option 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value="classKJS_1_1SourceCode.html">kjs::sourcecode</option>, <option value="classKJS_1_1SourceElementsNode.html">kjs::sourceelementsnode</option>, <option value="classKJS_1_1StatementNode.html">kjs::statementnode</option>, <option value="classKJS_1_1StatListNode.html">kjs::statlistnode</option>, <option value="classKJS_1_1String.html">kjs::string</option>, <option value="classKJS_1_1StringImp.html">kjs::stringimp</option>, <option value="classKJS_1_1StringInstanceImp.html">kjs::stringinstanceimp</option>, <option value="classKJS_1_1StringNode.html">kjs::stringnode</option>, <option value="classKJS_1_1StringObjectFuncImp.html">kjs::stringobjectfuncimp</option>, <option value="classKJS_1_1StringObjectImp.html">kjs::stringobjectimp</option>, <option value="classKJS_1_1StringProtoFuncImp.html">kjs::stringprotofuncimp</option>, <option value="classKJS_1_1StringPrototypeImp.html">kjs::stringprototypeimp</option>, <option value="classKJS_1_1SwitchNode.html">kjs::switchnode</option>, <option value="classKJS_1_1ThisNode.html">kjs::thisnode</option>, <option value="classKJS_1_1ThrowNode.html">kjs::thrownode</option>, <option value="classKJS_1_1TryNode.html">kjs::trynode</option>, <option value="classKJS_1_1TypeOfNode.html">kjs::typeofnode</option>, <option value="classKJS_1_1UCharReference.html">kjs::ucharreference</option>, <option value="classKJS_1_1UnaryPlusNode.html">kjs::unaryplusnode</option>, <option value="classKJS_1_1Undefined.html">kjs::undefined</option>, <option value="classKJS_1_1UndefinedImp.html">kjs::undefinedimp</option>, <option value="classKJS_1_1UString.html">kjs::ustring</option>, <option value="classKJS_1_1Value.html">kjs::value</option>, <option value="classKJS_1_1ValueImp.html">kjs::valueimp</option>, <option value="classKJS_1_1VarDeclListNode.html">kjs::vardecllistnode</option>, <option value="classKJS_1_1VarDeclNode.html">kjs::vardeclnode</option>, <option value="classKJS_1_1VarStatementNode.html">kjs::varstatementnode</option>, <option 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