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/*
* Copyright (C) 2022 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:
* 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 INC. ``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 INC. 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.
*/
#pragma once
#include "TextRun.h"
#include <wtf/HashFunctions.h>
#include <wtf/HashTraits.h>
#include <wtf/Hasher.h>
namespace WebCore {
inline void add(Hasher& hasher, const ExpansionBehavior& expansionBehavior)
{
add(hasher, expansionBehavior.left, expansionBehavior.right);
}
inline void add(Hasher& hasher, const TextRun& textRun)
{
add(hasher, textRun.m_text, textRun.m_tabSize, textRun.m_xpos, textRun.m_horizontalGlyphStretch, textRun.m_expansion, textRun.m_expansionBehavior, textRun.m_allowTabs, textRun.m_direction, textRun.m_directionalOverride, textRun.m_characterScanForCodePath, textRun.m_disableSpacing);
}
inline bool TextRun::operator==(const TextRun& other) const
{
return m_text == other.m_text
&& m_tabSize == other.m_tabSize
&& m_xpos == other.m_xpos
&& m_horizontalGlyphStretch == other.m_horizontalGlyphStretch
&& m_expansion == other.m_expansion
&& m_expansionBehavior == other.m_expansionBehavior
&& m_allowTabs == other.m_allowTabs
&& m_direction == other.m_direction
&& m_directionalOverride == other.m_directionalOverride
&& m_characterScanForCodePath == other.m_characterScanForCodePath
&& m_disableSpacing == other.m_disableSpacing
&& m_textSpacingState == other.m_textSpacingState;
}
struct TextRunHash {
static unsigned hash(const TextRun& textRun) { return computeHash(textRun); }
static bool equal(const TextRun& a, const TextRun& b) { return a == b; }
static constexpr bool safeToCompareToEmptyOrDeleted = false;
};
} // namespace WebCore
namespace WTF {
template<> struct DefaultHash<WebCore::TextRun> : WebCore::TextRunHash { };
template<> struct HashTraits<WebCore::TextRun> : GenericHashTraits<WebCore::TextRun> {
static bool isDeletedValue(const WebCore::TextRun& value) { return value.isHashTableDeletedValue(); }
static bool isEmptyValue(const WebCore::TextRun& value) { return value.isHashTableEmptyValue(); }
static void constructDeletedValue(WebCore::TextRun& slot) { new (NotNull, &slot) WebCore::TextRun(WTF::HashTableDeletedValue); }
static WebCore::TextRun emptyValue() { return WebCore::TextRun(WTF::HashTableEmptyValue); }
};
} // namespace WTF
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