null_backend.hpp

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#ifndef EAGINE_LOGGING_NULL_BACKEND_HPP
#define EAGINE_LOGGING_NULL_BACKEND_HPP
 
#include "backend.hpp"
 
namespace eagine {
//------------------------------------------------------------------------------
struct null_log_backend : logger_backend {
 
    auto entry_backend(identifier, log_event_severity) noexcept
      -> logger_backend* final {
        return nullptr;
    }
 
    auto allocator() noexcept -> memory::shared_byte_allocator final {
        return {};
    }
 
    auto type_id() noexcept -> identifier final {
        return EAGINE_ID(Null);
    }
 
    void enter_scope(identifier) noexcept final {}
 
    void leave_scope(identifier) noexcept final {}
 
    void set_description(
      identifier,
      logger_instance_id,
      string_view,
      string_view) noexcept final {}
 
    auto begin_message(
      identifier,
      identifier,
      logger_instance_id,
      log_event_severity,
      string_view) noexcept -> bool final {
        return false;
    }
 
    void add_nothing(identifier, identifier) noexcept final {}
 
    void add_identifier(identifier, identifier, identifier) noexcept final {}
 
    void add_message_id(identifier, identifier, message_id) noexcept final {}
 
    void add_bool(identifier, identifier, bool) noexcept final {}
 
    void add_integer(identifier, identifier, std::intmax_t) noexcept final {}
 
    void add_unsigned(identifier, identifier, std::uintmax_t) noexcept final {}
 
    void add_float(identifier, identifier, float) noexcept final {}
 
    void add_float(identifier, identifier, float, float, float) noexcept final {
    }
 
    void add_duration(
      identifier,
      identifier,
      std::chrono::duration<float>) noexcept final {}
 
    void add_string(identifier, identifier, string_view) noexcept final {}
 
    void add_blob(identifier, identifier, memory::const_block) noexcept final {}
 
    void finish_message() noexcept final {}
 
    void finish_log() noexcept final {}
 
    void log_chart_sample(
      identifier,
      logger_instance_id,
      identifier,
      float) noexcept final {}
};
//------------------------------------------------------------------------------
} // namespace eagine
 
#endif // EAGINE_LOGGING_NULL_BACKEND_HPP