Source/WebCore/Modules/webgpu/WHLSL/AST/WHLSLGlobalVariableReference.h

/*
 * Copyright (C) 2019 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
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 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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 */

#pragma once

#if ENABLE(WEBGPU)

#include "WHLSLStructureElement.h"
#include <wtf/FastMalloc.h>
#include <wtf/UniqueRef.h>

namespace WebCore {

namespace WHLSL {

namespace AST {

class GlobalVariableReference final : public Expression {
    WTF_MAKE_FAST_ALLOCATED;
public:
    GlobalVariableReference(CodeLocation location, UniqueRef<Expression>&& base, StructureElement* structField)
        : Expression(location, Kind::GlobalVariableReference)
        , m_base(WTFMove(base))
        , m_structField(*structField)
    {
        ASSERT(structField);
    }

    ~GlobalVariableReference() = default;
    
    StructureElement& structField() { return m_structField; }

    Expression& base() { return m_base.get(); }

private:
    UniqueRef<Expression> m_base;
    StructureElement& m_structField;
};

} // namespace AST

}

}

DEFINE_DEFAULT_DELETE(GlobalVariableReference)

SPECIALIZE_TYPE_TRAITS_WHLSL_EXPRESSION(GlobalVariableReference, isGlobalVariableReference())

#endif