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/*
* Copyright (C) 2011 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "IDBKey.h"
#include "IDBKeyData.h"
#include <JavaScriptCore/ArrayBufferView.h>
#include <JavaScriptCore/JSArrayBuffer.h>
#include <JavaScriptCore/JSArrayBufferView.h>
#include <JavaScriptCore/JSCInlines.h>
#include <wtf/TZoneMallocInlines.h>
namespace WebCore {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED_IMPL(IDBKey);
using IDBKeyVector = Vector<RefPtr<IDBKey>>;
Ref<IDBKey> IDBKey::createBinary(const ThreadSafeDataBuffer& buffer)
{
return adoptRef(*new IDBKey(buffer));
}
Ref<IDBKey> IDBKey::createBinary(JSC::JSArrayBuffer& arrayBuffer)
{
RefPtr buffer = arrayBuffer.impl();
if (buffer && buffer->isDetached())
return createInvalid();
return adoptRef(*new IDBKey(ThreadSafeDataBuffer::copyData(buffer->span())));
}
Ref<IDBKey> IDBKey::createBinary(JSC::JSArrayBufferView& arrayBufferView)
{
if (arrayBufferView.isDetached())
return createInvalid();
auto bufferView = arrayBufferView.possiblySharedImpl();
if (!bufferView)
return createInvalid();
return adoptRef(*new IDBKey(ThreadSafeDataBuffer::copyData(bufferView->span())));
}
IDBKey::IDBKey(IndexedDB::KeyType type, double number)
: m_type(type)
, m_value(number)
, m_sizeEstimate(OverheadSize + sizeof(double))
{
}
IDBKey::IDBKey(const String& value)
: m_type(IndexedDB::KeyType::String)
, m_value(value)
, m_sizeEstimate(OverheadSize + value.length() * sizeof(UChar))
{
}
IDBKey::IDBKey(const IDBKeyVector& keyArray, size_t arraySize)
: m_type(IndexedDB::KeyType::Array)
, m_value(keyArray)
, m_sizeEstimate(OverheadSize + arraySize)
{
}
IDBKey::IDBKey(const ThreadSafeDataBuffer& buffer)
: m_type(IndexedDB::KeyType::Binary)
, m_value(buffer)
, m_sizeEstimate(OverheadSize + buffer.size())
{
}
IDBKey::~IDBKey() = default;
bool IDBKey::isValid() const
{
if (m_type == IndexedDB::KeyType::Invalid)
return false;
if (m_type == IndexedDB::KeyType::Array) {
for (auto& key : std::get<IDBKeyVector>(m_value)) {
if (!key->isValid())
return false;
}
}
return true;
}
int IDBKey::compare(const IDBKey& other) const
{
if (m_type != other.m_type)
return m_type > other.m_type ? -1 : 1;
switch (m_type) {
case IndexedDB::KeyType::Array: {
auto& array = std::get<IDBKeyVector>(m_value);
auto& otherArray = std::get<IDBKeyVector>(other.m_value);
for (size_t i = 0; i < array.size() && i < otherArray.size(); ++i) {
if (int result = array[i]->compare(*otherArray[i]))
return result;
}
if (array.size() < otherArray.size())
return -1;
if (array.size() > otherArray.size())
return 1;
return 0;
}
case IndexedDB::KeyType::Binary:
return compareBinaryKeyData(std::get<ThreadSafeDataBuffer>(m_value), std::get<ThreadSafeDataBuffer>(other.m_value));
case IndexedDB::KeyType::String:
return -codePointCompare(std::get<String>(other.m_value), std::get<String>(m_value));
case IndexedDB::KeyType::Date:
case IndexedDB::KeyType::Number: {
auto number = std::get<double>(m_value);
auto otherNumber = std::get<double>(other.m_value);
return (number < otherNumber) ? -1 : ((number > otherNumber) ? 1 : 0);
}
case IndexedDB::KeyType::Invalid:
case IndexedDB::KeyType::Min:
case IndexedDB::KeyType::Max:
ASSERT_NOT_REACHED();
return 0;
}
ASSERT_NOT_REACHED();
return 0;
}
bool IDBKey::isLessThan(const IDBKey& other) const
{
return compare(other) == -1;
}
bool IDBKey::isEqual(const IDBKey& other) const
{
return !compare(other);
}
#if !LOG_DISABLED
String IDBKey::loggingString() const
{
return IDBKeyData(this).loggingString();
}
#endif
} // namespace WebCore
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