log_tag.hxx

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#pragma once
#include <ice/hash.hxx>
#include <ice/string.hxx>
 
namespace ice
{
 
    enum class LogTag : ice::u64
    {
        None = 0x0,
 
        Core = 0x1ull << 0,
        System = Core << 1,
        Module = Core << 2,
        Engine = Core << 3,
        Asset = Core << 4,
        Game = Core << 5,
        Tool = Core << 24,
    };
 
    struct LogTagDefinition
    {
        ice::LogTag const tag;
        ice::String const name;
    };
 
    constexpr auto create_log_tag(LogTag base_tag, ice::String name) noexcept -> LogTagDefinition
    {
        ice::u64 const name_hash = ice::hash32(name);
        ice::u64 const tag_hash = ice::hash(base_tag) << 32;
        return {
            .tag = static_cast<LogTag>(tag_hash | name_hash),
            .name = name
        };
    }
 
    constexpr auto create_log_tag(LogTagDefinition const& base_tag_def, ice::String name) noexcept -> LogTagDefinition
    {
        return create_log_tag(base_tag_def.tag, name);
    }
 
    void log_tag_register(ice::LogTagDefinition tag_def) noexcept;
 
    void log_tag_enable(ice::LogTag tag, bool enabled = true) noexcept;
 
    namespace detail
    {
 
        constexpr auto get_tag(ice::LogTag tag) noexcept
        {
            return tag;
        }
 
        constexpr auto get_tag(ice::LogTagDefinition const& tag_def) noexcept
        {
            return tag_def.tag;
        }
 
    } // namespace detail
 
} // namespace ice