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

/*
 * Copyright (C) 2019 Apple Inc. All rights reserved.
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 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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#pragma once

#if ENABLE(WEBGPU)

#include "WHLSLResolvableType.h"
#include <wtf/FastMalloc.h>
#include <wtf/UniqueRef.h>
#include <wtf/text/WTFString.h>

namespace WebCore {

namespace WHLSL {

namespace AST {

class TypeReference;

class UnsignedIntegerLiteralType final : public ResolvableType {
    WTF_MAKE_FAST_ALLOCATED;
public:
    UnsignedIntegerLiteralType(CodeLocation, unsigned value);

    ~UnsignedIntegerLiteralType() = default;

    UnsignedIntegerLiteralType(const UnsignedIntegerLiteralType&) = delete;
    UnsignedIntegerLiteralType(UnsignedIntegerLiteralType&&) = default;

    UnsignedIntegerLiteralType& operator=(const UnsignedIntegerLiteralType&) = delete;
    UnsignedIntegerLiteralType& operator=(UnsignedIntegerLiteralType&&) = default;

    unsigned value() const { return m_value; }

    TypeReference& preferredType() { return m_preferredType; }

    bool canResolve(const Type&) const;
    unsigned conversionCost(const UnnamedType&) const;

    UnsignedIntegerLiteralType clone() const;

private:
    unsigned m_value;
    // This is a unique_ptr to resolve a circular dependency between
    // ConstantExpression -> LiteralType -> TypeReference -> TypeArguments -> ConstantExpression
    Ref<TypeReference> m_preferredType;
};

} // namespace AST

}

}

DEFINE_DEFAULT_DELETE(UnsignedIntegerLiteralType)

SPECIALIZE_TYPE_TRAITS_WHLSL_TYPE(UnsignedIntegerLiteralType, isUnsignedIntegerLiteralType())

#endif