Source/WebCore/Modules/webgpu/WHLSL/AST/WHLSLIfStatement.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:
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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
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 *
 * 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
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#pragma once

#if ENABLE(WEBGPU)

#include "WHLSLExpression.h"
#include "WHLSLLexer.h"
#include "WHLSLStatement.h"
#include <memory>
#include <wtf/UniqueRef.h>

namespace WebCore {

namespace WHLSL {

namespace AST {

class IfStatement : public Statement {
public:
    IfStatement(Lexer::Token&& origin, UniqueRef<Expression>&& conditional, UniqueRef<Statement>&& body, Optional<UniqueRef<Statement>>&& elseBody)
        : Statement(WTFMove(origin))
        , m_conditional(WTFMove(conditional))
        , m_body(WTFMove(body))
        , m_elseBody(WTFMove(elseBody))
    {
    }

    virtual ~IfStatement() = default;

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

    bool isIfStatement() const override { return true; }

    Expression& conditional() { return m_conditional; }
    Statement& body() { return m_body; }
    Statement* elseBody() { return m_elseBody ? &*m_elseBody : nullptr; }

private:
    UniqueRef<Expression> m_conditional;
    UniqueRef<Statement> m_body;
    Optional<UniqueRef<Statement>> m_elseBody;
};

} // namespace AST

}

}

SPECIALIZE_TYPE_TRAITS_WHLSL_STATEMENT(IfStatement, isIfStatement())

#endif