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/*
* Copyright (C) 2021 Apple 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:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
* OWNER OR 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 "ScriptBuffer.h"
#include <wtf/text/StringBuilder.h>
namespace WebCore {
ScriptBuffer::ScriptBuffer(const String& string)
{
append(string);
}
ScriptBuffer ScriptBuffer::empty()
{
return ScriptBuffer { SharedBuffer::create() };
}
String ScriptBuffer::toString() const
{
if (!m_buffer)
return String();
StringBuilder builder;
m_buffer.get()->forEachSegment([&](auto& segment) {
builder.append(String::fromUTF8(segment.data(), segment.size()));
});
return builder.toString();
}
bool ScriptBuffer::containsSingleFileMappedSegment() const
{
return m_buffer && m_buffer.get()->hasOneSegment() && m_buffer.get()->begin()->segment->containsMappedFileData();
}
void ScriptBuffer::append(const String& string)
{
auto result = string.tryGetUTF8([&](std::span<const char> span) -> bool {
m_buffer.append(span.data(), span.size());
return true;
});
RELEASE_ASSERT(result);
}
void ScriptBuffer::append(const FragmentedSharedBuffer& buffer)
{
m_buffer.append(buffer);
}
bool operator==(const ScriptBuffer& a, const ScriptBuffer& b)
{
if (a.buffer() == b.buffer())
return true;
if (!a.buffer() || !b.buffer())
return false;
return *a.buffer() == *b.buffer();
}
} // namespace WebCore
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