Source/WebCore/platform/calc/CalculationValue.h

/*
 * Copyright (C) 2011 Google Inc. All rights reserved.
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#pragma once

#include "Length.h"
#include <wtf/Forward.h>
#include <wtf/Ref.h>
#include <wtf/RefCounted.h>

namespace WebCore {

class CalcExpressionNode;

class CalculationValue : public RefCounted<CalculationValue> {
public:
    WEBCORE_EXPORT static Ref<CalculationValue> create(std::unique_ptr<CalcExpressionNode>, ValueRange);
    WEBCORE_EXPORT ~CalculationValue();

    float evaluate(float maxValue) const;

    bool shouldClampToNonNegative() const { return m_shouldClampToNonNegative; }
    const CalcExpressionNode& expression() const { return *m_expression; }

private:
    CalculationValue(std::unique_ptr<CalcExpressionNode>, ValueRange);

    std::unique_ptr<CalcExpressionNode> m_expression;
    bool m_shouldClampToNonNegative;
};

bool operator==(const CalculationValue&, const CalculationValue&);

TextStream& operator<<(TextStream&, const CalculationValue&);

} // namespace WebCore