Format a log record by concatenating the log level, timestamp and message
layout_simple(
level,
msg,
namespace = NA_character_,
.logcall = sys.call(),
.topcall = sys.call(-1),
.topenv = parent.frame()
)character vector
log level, see log_levels() for more details
string message
string referring to the logger environment /
config to be used to override the target of the message record to
be used instead of the default namespace, which is defined by the
R package name from which the logger was called, and falls back
to a common, global namespace.
the logging call being evaluated (useful in formatters and layouts when you want to have access to the raw, unevaluated R expression)
R expression from which the logging function was called (useful in formatters and layouts to extract the calling function's name or arguments)
original frame of the .topcall calling function
where the formatter function will be evaluated and that is used
to look up the namespace as well via logger:::top_env_name
Other log_layouts:
get_logger_meta_variables(),
layout_blank(),
layout_glue(),
layout_glue_colors(),
layout_glue_generator(),
layout_json(),
layout_json_parser(),
layout_logging()