/*

 * Copyright (c) 2021, Andrew Kaster <akaster@serenityos.org>

 * Copyright (c) 2021, Brian Gianforcaro <bgianf@serenityos.org>

 *

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

 */

#pragma once

#include <AK/Format.h>

#include <AK/StringView.h>

#include <AK/Types.h>

namespace AK {

class SourceLocation {

public:

    [[nodiscard]] constexpr StringView function_name() const { return { m_function, __builtin_strlen(m_function) }; }

    [[nodiscard]] constexpr StringView filename() const { return { m_file, __builtin_strlen(m_file) }; }

    [[nodiscard]] constexpr u32 line_number() const { return m_line; }

    [[nodiscard]] static constexpr SourceLocation current(char const* const file = __builtin_FILE(), u32 line = __builtin_LINE(), char const* const function = __builtin_FUNCTION())

    {

        return SourceLocation(file, line, function);

    }

    constexpr SourceLocation() = default;

    constexpr SourceLocation(SourceLocation const&) = default;

    SourceLocation& operator=(SourceLocation& other) = default;

private:

    constexpr SourceLocation(char const* const file, u32 line, char const* const function)

        : m_function(function)

        , m_file(file)

        , m_line(line)

    {

    }

    char const* m_function { nullptr };

    char const* m_file { nullptr };

    u32 m_line { 0 };

};

}

template<>

struct AK::Formatter<AK::SourceLocation> : AK::Formatter<FormatString> {

    ErrorOr<void> format(FormatBuilder& builder, AK::SourceLocation location)

    {

        return AK::Formatter<FormatString>::format(builder, "[\x1b[34m{}\x1b[0m @ {}:{}]"sv, location.function_name(), location.filename(), location.line_number());

    }

};

#if USING_AK_GLOBALLY

using AK::SourceLocation;

#endif