| | 1 | /* |
| | 2 | * Copyright (C) 1999-2000 Harri Porten (porten@kde.org) |
| | 3 | * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved. |
| | 4 | * |
| | 5 | * This library is free software; you can redistribute it and/or |
| | 6 | * modify it under the terms of the GNU Lesser General Public |
| | 7 | * License as published by the Free Software Foundation; either |
| | 8 | * version 2 of the License, or (at your option) any later version. |
| | 9 | * |
| | 10 | * This library is distributed in the hope that it will be useful, |
| | 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| | 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| | 13 | * Lesser General Public License for more details. |
| | 14 | * |
| | 15 | * You should have received a copy of the GNU Lesser General Public |
| | 16 | * License along with this library; if not, write to the Free Software |
| | 17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 |
| | 18 | * USA |
| | 19 | * |
| | 20 | */ |
| | 21 | |
| | 22 | #include "config.h" |
| | 23 | #include "DateInstance.h" |
| | 24 | |
| | 25 | #include "JSDateMath.h" |
| | 26 | #include "JSGlobalObject.h" |
| | 27 | #include "JSCInlines.h" |
| | 28 | #include <math.h> |
| | 29 | #include <wtf/MathExtras.h> |
| | 30 | |
| | 31 | using namespace WTF; |
| | 32 | |
| | 33 | namespace JSC { |
| | 34 | |
| | 35 | const ClassInfo DateInstance::s_info = {"Date", &JSWrapperObject::s_info, 0, 0, CREATE_METHOD_TABLE(DateInstance)}; |
| | 36 | |
| | 37 | DateInstance::DateInstance(VM& vm, Structure* structure) |
| | 38 | : JSWrapperObject(vm, structure) |
| | 39 | { |
| | 40 | } |
| | 41 | |
| | 42 | void DateInstance::finishCreation(VM& vm) |
| | 43 | { |
| | 44 | Base::finishCreation(vm); |
| | 45 | ASSERT(inherits(info())); |
| | 46 | setInternalValue(vm, jsNaN()); |
| | 47 | } |
| | 48 | |
| | 49 | void DateInstance::finishCreation(VM& vm, double time) |
| | 50 | { |
| | 51 | Base::finishCreation(vm); |
| | 52 | ASSERT(inherits(info())); |
| | 53 | setInternalValue(vm, jsNumber(timeClip(time))); |
| | 54 | } |
| | 55 | |
| | 56 | void DateInstance::destroy(JSCell* cell) |
| | 57 | { |
| | 58 | static_cast<DateInstance*>(cell)->DateInstance::~DateInstance(); |
| | 59 | } |
| | 60 | |
| | 61 | const GregorianDateTime* DateInstance::calculateGregorianDateTime(ExecState* exec) const |
| | 62 | { |
| | 63 | double milli = internalNumber(); |
| | 64 | if (std::isnan(milli)) |
| | 65 | return 0; |
| | 66 | |
| | 67 | VM& vm = exec->vm(); |
| | 68 | if (!m_data) |
| | 69 | m_data = vm.dateInstanceCache.add(milli); |
| | 70 | |
| | 71 | if (m_data->m_gregorianDateTimeCachedForMS != milli) { |
| | 72 | msToGregorianDateTime(vm, milli, false, m_data->m_cachedGregorianDateTime); |
| | 73 | m_data->m_gregorianDateTimeCachedForMS = milli; |
| | 74 | } |
| | 75 | return &m_data->m_cachedGregorianDateTime; |
| | 76 | } |
| | 77 | |
| | 78 | const GregorianDateTime* DateInstance::calculateGregorianDateTimeUTC(ExecState* exec) const |
| | 79 | { |
| | 80 | double milli = internalNumber(); |
| | 81 | if (std::isnan(milli)) |
| | 82 | return 0; |
| | 83 | |
| | 84 | VM& vm = exec->vm(); |
| | 85 | if (!m_data) |
| | 86 | m_data = vm.dateInstanceCache.add(milli); |
| | 87 | |
| | 88 | if (m_data->m_gregorianDateTimeUTCCachedForMS != milli) { |
| | 89 | msToGregorianDateTime(vm, milli, true, m_data->m_cachedGregorianDateTimeUTC); |
| | 90 | m_data->m_gregorianDateTimeUTCCachedForMS = milli; |
| | 91 | } |
| | 92 | return &m_data->m_cachedGregorianDateTimeUTC; |
| | 93 | } |
| | 94 | |
| | 95 | } // namespace JSC |
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