Crate slog_try[−][src]
Convenience macros for logging with optional slog Logger
s.
Example
#[derive(Default)] struct HasOptLogger { logger: Option<Logger>, } let mut opt_logger: HasOptLogger = Default::default(); try_info!(opt_logger.logger, "You won't see me output. The logger is None."; "opt" => "None"); try_info!(opt_logger.logger, #"imatag", "You won't see me output. The logger is None."; "opt" => "None"); // Setup a `Logger` opt_logger.logger = Some(logger); try_info!(opt_logger.logger, "You will see me output!"; "opt" => "Some"); try_info!(opt_logger.logger, #"imatag", "You will see me output!"; "opt" => "Some");
Macros
crit | Log critical level record |
debug | Log debug level record |
error | Log error level record |
info | Log info level record |
trace | Log trace level record |
try_crit | Log a crit level message if the given logger is |
try_debug | Log a debug level message if the given logger is |
try_error | Log an error level message if the given logger is |
try_info | Log an info level message if the given logger is |
try_trace | Log a trace level message if the given logger is |
try_warn | Log a warn level message if the given logger is |
warn | Log warning level record |