Source/WebCore/Modules/webgpu/WHLSL/AST/WHLSLIntegerLiteralType.cpp

/*
 * Copyright (C) 2019 Apple Inc. All rights reserved.
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#include "config.h"
#include "WHLSLIntegerLiteralType.h"

#if ENABLE(WEBGPU)

#include "WHLSLInferTypes.h"
#include "WHLSLNativeTypeDeclaration.h"
#include "WHLSLTypeArgument.h"
#include "WHLSLTypeReference.h"

namespace WebCore {

namespace WHLSL {

namespace AST {

IntegerLiteralType::IntegerLiteralType(CodeLocation location, int value)
    : m_value(value)
    , m_preferredType(makeUniqueRef<TypeReference>(location, "int"_str, TypeArguments()))
{
}

IntegerLiteralType::~IntegerLiteralType() = default;

IntegerLiteralType::IntegerLiteralType(IntegerLiteralType&&) = default;

IntegerLiteralType& IntegerLiteralType::operator=(IntegerLiteralType&&) = default;

bool IntegerLiteralType::canResolve(const Type& type) const
{
    if (!is<NamedType>(type))
        return false;
    auto& namedType = downcast<NamedType>(type);
    if (!is<NativeTypeDeclaration>(namedType))
        return false;
    auto& nativeTypeDeclaration = downcast<NativeTypeDeclaration>(namedType);
    if (!nativeTypeDeclaration.isNumber())
        return false;
    if (!nativeTypeDeclaration.canRepresentInteger()(m_value))
        return false;
    return true;
}

unsigned IntegerLiteralType::conversionCost(const UnnamedType& unnamedType) const
{
    if (matches(unnamedType, m_preferredType))
        return 0;
    return 1;
}

IntegerLiteralType IntegerLiteralType::clone() const
{
    IntegerLiteralType result(m_preferredType->codeLocation(), m_value);
    if (auto* type = maybeResolvedType())
        result.resolve(type->clone());
    result.m_preferredType = m_preferredType->cloneTypeReference();
    return result;
}

} // namespace AST

}

}

#endif