Source/WebCore/Modules/webgpu/WHLSL/AST/WHLSLFunctionDeclaration.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
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 * 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
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 * 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
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

#pragma once

#if ENABLE(WEBGPU)

#include "WHLSLCodeLocation.h"
#include "WHLSLEntryPointType.h"
#include "WHLSLFunctionAttribute.h"
#include "WHLSLNameSpace.h"
#include "WHLSLParsingMode.h"
#include "WHLSLSemantic.h"
#include "WHLSLUnnamedType.h"
#include "WHLSLVariableDeclaration.h"
#include <wtf/FastMalloc.h>
#include <wtf/UniqueRef.h>
#include <wtf/text/WTFString.h>

namespace WebCore {

namespace WHLSL {

namespace AST {

class FunctionDeclaration {
    WTF_MAKE_FAST_ALLOCATED;
public:
    FunctionDeclaration(CodeLocation location, AttributeBlock&& attributeBlock, Optional<EntryPointType> entryPointType, Ref<UnnamedType> type, String&& name, VariableDeclarations&& parameters, std::unique_ptr<Semantic>&& semantic, bool isOperator, ParsingMode parsingMode)
        : m_codeLocation(location)
        , m_attributeBlock(WTFMove(attributeBlock))
        , m_entryPointType(entryPointType)
        , m_isOperator(isOperator)
        , m_parsingMode(parsingMode)
        , m_type(WTFMove(type))
        , m_name(WTFMove(name))
        , m_parameters(WTFMove(parameters))
        , m_semantic(WTFMove(semantic))
    {
    }

    virtual ~FunctionDeclaration() = default;

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

    virtual bool isFunctionDefinition() const { return false; }
    virtual bool isNativeFunctionDeclaration() const { return false; }

    AttributeBlock& attributeBlock() { return m_attributeBlock; }
    const Optional<EntryPointType>& entryPointType() const { return m_entryPointType; }
    const UnnamedType& type() const { return m_type; }
    UnnamedType& type() { return m_type; }
    const String& name() const { return m_name; }
    String& name() { return m_name; }
    bool isCast() const { return m_name == "operator cast"; }
    const VariableDeclarations& parameters() const { return m_parameters; }
    VariableDeclarations& parameters() { return m_parameters; }
    Semantic* semantic() { return m_semantic.get(); }
    bool isOperator() const { return m_isOperator; }
    const CodeLocation& codeLocation() const { return m_codeLocation; }

    ParsingMode parsingMode() const { return m_parsingMode; }

    NameSpace nameSpace() const { return m_nameSpace; }
    void setNameSpace(NameSpace nameSpace) { m_nameSpace = nameSpace; }

private:
    CodeLocation m_codeLocation;
    AttributeBlock m_attributeBlock;
    Optional<EntryPointType> m_entryPointType;
    bool m_isOperator;
    ParsingMode m_parsingMode;
    Ref<UnnamedType> m_type;
    String m_name;
    VariableDeclarations m_parameters;
    std::unique_ptr<Semantic> m_semantic;
    NameSpace m_nameSpace { NameSpace::StandardLibrary };
};

} // namespace AST

}

}

#define SPECIALIZE_TYPE_TRAITS_WHLSL_FUNCTION_DECLARATION(ToValueTypeName, predicate) \
SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::WHLSL::AST::ToValueTypeName) \
    static bool isType(const WebCore::WHLSL::AST::FunctionDeclaration& type) { return type.predicate; } \
SPECIALIZE_TYPE_TRAITS_END()

#endif