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      1 /*
      2  *  Copyright (C) 1999-2002 Harri Porten (porten (at) kde.org)
      3  *  Copyright (C) 2001 Peter Kelly (pmk (at) post.com)
      4  *  Copyright (C) 2004, 2007, 2008 Apple Inc. All rights reserved.
      5  *
      6  *  This library is free software; you can redistribute it and/or
      7  *  modify it under the terms of the GNU Library General Public
      8  *  License as published by the Free Software Foundation; either
      9  *  version 2 of the License, or (at your option) any later version.
     10  *
     11  *  This library is distributed in the hope that it will be useful,
     12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
     13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     14  *  Library General Public License for more details.
     15  *
     16  *  You should have received a copy of the GNU Library General Public License
     17  *  along with this library; see the file COPYING.LIB.  If not, write to
     18  *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     19  *  Boston, MA 02110-1301, USA.
     20  *
     21  */
     22 
     23 #include "config.h"
     24 #include "JSNumberCell.h"
     25 
     26 #if USE(JSVALUE32)
     27 
     28 #include "NumberObject.h"
     29 #include "UString.h"
     30 
     31 namespace JSC {
     32 
     33 JSValue JSNumberCell::toPrimitive(ExecState*, PreferredPrimitiveType) const
     34 {
     35     return const_cast<JSNumberCell*>(this);
     36 }
     37 
     38 bool JSNumberCell::getPrimitiveNumber(ExecState*, double& number, JSValue& value)
     39 {
     40     number = m_value;
     41     value = this;
     42     return true;
     43 }
     44 
     45 bool JSNumberCell::toBoolean(ExecState*) const
     46 {
     47     return m_value < 0.0 || m_value > 0.0; // false for NaN
     48 }
     49 
     50 double JSNumberCell::toNumber(ExecState*) const
     51 {
     52   return m_value;
     53 }
     54 
     55 UString JSNumberCell::toString(ExecState*) const
     56 {
     57     return UString::from(m_value);
     58 }
     59 
     60 UString JSNumberCell::toThisString(ExecState*) const
     61 {
     62     return UString::from(m_value);
     63 }
     64 
     65 JSObject* JSNumberCell::toObject(ExecState* exec) const
     66 {
     67     return constructNumber(exec, const_cast<JSNumberCell*>(this));
     68 }
     69 
     70 JSObject* JSNumberCell::toThisObject(ExecState* exec) const
     71 {
     72     return constructNumber(exec, const_cast<JSNumberCell*>(this));
     73 }
     74 
     75 bool JSNumberCell::getUInt32(uint32_t& uint32) const
     76 {
     77     uint32 = static_cast<uint32_t>(m_value);
     78     return uint32 == m_value;
     79 }
     80 
     81 JSValue JSNumberCell::getJSNumber()
     82 {
     83     return this;
     84 }
     85 
     86 JSValue jsNumberCell(ExecState* exec, double d)
     87 {
     88     return new (exec) JSNumberCell(exec, d);
     89 }
     90 
     91 JSValue jsNumberCell(JSGlobalData* globalData, double d)
     92 {
     93     return new (globalData) JSNumberCell(globalData, d);
     94 }
     95 
     96 } // namespace JSC
     97 
     98 #else // USE(JSVALUE32)
     99 
    100 // Keep our exported symbols lists happy.
    101 namespace JSC {
    102 
    103 JSValue jsNumberCell(ExecState*, double);
    104 
    105 JSValue jsNumberCell(ExecState*, double)
    106 {
    107     ASSERT_NOT_REACHED();
    108     return JSValue();
    109 }
    110 
    111 } // namespace JSC
    112 
    113 #endif // USE(JSVALUE32)
    114