Source/WebCore/css/CSSParamValue.h

/*
 * Copyright (C) 2026 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 <WebCore/CSSLinkParameter.h>
#include <WebCore/CSSValue.h>

namespace WebCore {

class CSSVariableData;

// <param()> = param( <dashed-ident> , <declaration-value>? )
// https://drafts.csswg.org/css-link-params/#funcdef-param
class CSSParamValue final : public CSSValue {
public:
    static Ref<CSSParamValue> create(CSS::ParamFunction parameter)
    {
        return adoptRef(*new CSSParamValue(WTF::move(parameter)));
    }
    ~CSSParamValue();

    const CSS::ParamFunction& parameter() const LIFETIME_BOUND { return m_parameter; }

    bool equals(const CSSParamValue&) const;
    String customCSSText(const CSS::SerializationContext&) const;

private:
    explicit CSSParamValue(CSS::ParamFunction&&);

    const CSS::ParamFunction m_parameter;
};

} // namespace WebCore

SPECIALIZE_TYPE_TRAITS_CSS_VALUE(CSSParamValue, isParamValue())