Crate slog_try

Convenience macros for logging with optional slog Loggers.

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`
let plain = slog_term::PlainSyncDecorator::new(::std::io::stdout());
let logger = Logger::root(slog_term::FullFormat::new(plain).build().fuse(), o!("surname" => "Lava"));
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

try_crit	Log a crit level message if the given logger is Some,, otherwise do nothing.
try_debug	Log a debug level message if the given logger is Some, otherwise do nothing.
try_error	Log an error level message if the given logger is Some, otherwise do nothing.
try_info	Log an info level message if the given logger is Some, otherwise do nothing.
try_trace	Log a trace level message if the given logger is Some, otherwise do nothing.
try_warn	Log a warn level message if the given logger is Some, otherwise do nothing.