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/*
* 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. AND ITS 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 APPLE INC. OR ITS 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 "StyleRuleFunction.h"
namespace WebCore {
namespace Style {
// CustomFunction registration represents @function after things like conditional group rules (@media) and cascade layers have been resolved.
// https://drafts.csswg.org/css-mixins/#evaluating-custom-functions
struct CustomFunction : CanMakeCheckedPtr<CustomFunction> {
AtomString name;
const Vector<StyleRuleFunction::Parameter> parameters;
Ref<const StyleProperties> properties;
CustomFunction(const AtomString&, const Vector<StyleRuleFunction::Parameter>&, const StyleProperties&);
WTF_MAKE_STRUCT_TZONE_ALLOCATED(CustomFunction);
WTF_STRUCT_OVERRIDE_DELETE_FOR_CHECKED_PTR(CustomFunction);
};
class CustomFunctionRegistry : public CanMakeCheckedPtr<CustomFunctionRegistry> {
WTF_MAKE_TZONE_ALLOCATED(CustomFunctionRegistry);
WTF_OVERRIDE_DELETE_FOR_CHECKED_PTR(CustomFunctionRegistry);
public:
CustomFunctionRegistry() = default;
const CustomFunction* functionForName(const AtomString&) const;
void registerFunction(const StyleRuleFunction&, const Vector<Ref<const StyleRuleFunctionDeclarations>>&);
private:
HashMap<AtomString, UniqueRef<const CustomFunction>> m_functions;
};
}
}
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