Source/WebCore/css/calc/CSSCalcSymbolTable.cpp

/*
 * Copyright (C) 2021 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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#include "config.h"
#include "CSSCalcSymbolTable.h"

#include "CSSUnits.h"

namespace WebCore {

CSSCalcSymbolTable::CSSCalcSymbolTable(std::initializer_list<std::tuple<CSSValueID, CSSUnitType, double>> initializer)
{
    for (auto& [identifier, type, value] : initializer)
        m_table.add(identifier, std::make_pair(type, value));
}

std::optional<CSSCalcSymbolTable::Value> CSSCalcSymbolTable::get(CSSValueID valueID) const
{
    auto it = m_table.find(valueID);
    if (it == m_table.end())
        return std::nullopt;

    return {{ it->value.first, it->value.second }};
}

}