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lightning-sunbird  0.9+nobinonly
NumberResult.cpp
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00001 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
00002 /* ***** BEGIN LICENSE BLOCK *****
00003  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00004  *
00005  * The contents of this file are subject to the Mozilla Public License Version
00006  * 1.1 (the "License"); you may not use this file except in compliance with
00007  * the License. You may obtain a copy of the License at
00008  * http://www.mozilla.org/MPL/
00009  *
00010  * Software distributed under the License is distributed on an "AS IS" basis,
00011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00012  * for the specific language governing rights and limitations under the
00013  * License.
00014  *
00015  * The Original Code is TransforMiiX XSLT processor code.
00016  *
00017  * The Initial Developer of the Original Code is
00018  * The MITRE Corporation.
00019  * Portions created by the Initial Developer are Copyright (C) 1999
00020  * the Initial Developer. All Rights Reserved.
00021  *
00022  * Contributor(s):
00023  *   Keith Visco <kvisco@ziplink.net> (Original Author)
00024  *
00025  * Alternatively, the contents of this file may be used under the terms of
00026  * either the GNU General Public License Version 2 or later (the "GPL"), or
00027  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00028  * in which case the provisions of the GPL or the LGPL are applicable instead
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00036  *
00037  * ***** END LICENSE BLOCK ***** */
00038 
00044 #include "ExprResult.h"
00045 
00054 NumberResult::NumberResult(double aValue, txResultRecycler* aRecycler)
00055     : txAExprResult(aRecycler), value(aValue)
00056 {
00057 } //-- NumberResult
00058 
00059 /*
00060  * Virtual Methods from ExprResult
00061 */
00062 
00063 short NumberResult::getResultType() {
00064     return txAExprResult::NUMBER;
00065 } //-- getResultType
00066 
00067 void NumberResult::stringValue(nsAString& str)  {
00068     Double::toString(value, str);
00069 } //-- stringValue
00070 
00071 nsAString*
00072 NumberResult::stringValuePointer()
00073 {
00074     return nsnull;
00075 }
00076 
00077 MBool NumberResult::booleanValue() {
00078   // OG+
00079   // As per the XPath spec, the boolean value of a number is true if and only if
00080   // it is neither positive 0 nor negative 0 nor NaN
00081   return (MBool)(value != 0.0 && !Double::isNaN(value));
00082   // OG-
00083 } //-- booleanValue
00084 
00085 double NumberResult::numberValue() {
00086     return this->value;
00087 } //-- numberValue
00088