/*

 * Copyright (c) 2021, Tim Flynn <trflynn89@serenityos.org>

 *

 * SPDX-License-Identifier: BSD-2-Clause

 */

#include "Token.h"

#include <AK/Assertions.h>

#include <AK/ByteString.h>

#include <stdlib.h>

namespace SQL::AST {

StringView Token::name(TokenType type)

{

    switch (type) {

#define __ENUMERATE_SQL_TOKEN(value, type, category) \

    case TokenType::type:                            \

        return #type##sv;

        ENUMERATE_SQL_TOKENS

#undef __ENUMERATE_SQL_TOKEN

    default:

        VERIFY_NOT_REACHED();

    }

}

TokenCategory Token::category(TokenType type)

{

    switch (type) {

#define __ENUMERATE_SQL_TOKEN(value, type, category) \

    case TokenType::type:                            \

        return TokenCategory::category;

        ENUMERATE_SQL_TOKENS

#undef __ENUMERATE_SQL_TOKEN

    default:

        VERIFY_NOT_REACHED();

    }

}

double Token::double_value() const

{

    VERIFY(type() == TokenType::NumericLiteral);

    ByteString value(m_value);

    if (value[0] == '0' && value.length() >= 2) {

        if (value[1] == 'x' || value[1] == 'X')

            return static_cast<double>(strtoul(value.characters() + 2, nullptr, 16));

    }

    return strtod(value.characters(), nullptr);

}

}