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/*
* Copyright (C) 2024-2025 Samuel Weinig <sam@webkit.org>
*
* 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,
* 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 "StylePrimitiveNumericConcepts.h"
#include <wtf/Forward.h>
#include <wtf/Ref.h>
namespace WebCore {
namespace Calculation {
struct Child;
}
class CalculationValue;
namespace Style {
// Non-generic base type to allow code sharing and out-of-line definitions.
struct UnevaluatedCalculationBase {
explicit UnevaluatedCalculationBase(Ref<CalculationValue>&&);
explicit UnevaluatedCalculationBase(Calculation::Child&&, Calculation::Category, CSS::Range);
WEBCORE_EXPORT UnevaluatedCalculationBase(const UnevaluatedCalculationBase&);
WEBCORE_EXPORT UnevaluatedCalculationBase(UnevaluatedCalculationBase&&);
UnevaluatedCalculationBase& operator=(const UnevaluatedCalculationBase&);
UnevaluatedCalculationBase& operator=(UnevaluatedCalculationBase&&);
WEBCORE_EXPORT ~UnevaluatedCalculationBase();
Ref<CalculationValue> protectedCalculation() const;
bool equal(const UnevaluatedCalculationBase&) const;
private:
Ref<CalculationValue> calc;
};
// Wrapper for `Ref<CalculationValue>` that includes range and category as part of the type.
template<CSS::Numeric CSSType> struct UnevaluatedCalculation : UnevaluatedCalculationBase {
using UnevaluatedCalculationBase::UnevaluatedCalculationBase;
using UnevaluatedCalculationBase::operator=;
using CSS = CSSType;
static constexpr auto range = CSS::range;
static constexpr auto category = CSS::category;
explicit UnevaluatedCalculation(Calculation::Child&& child)
: UnevaluatedCalculationBase(WTFMove(child), category, range)
{
}
bool operator==(const UnevaluatedCalculation& other) const
{
return UnevaluatedCalculationBase::equal(static_cast<const UnevaluatedCalculationBase&>(other));
}
};
} // namespace Style
} // namespace WebCore
namespace WTF {
template<WebCore::Style::Calc T> struct IsSmartPtr<T> {
static constexpr bool value = true;
};
} // namespace WTF
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