Macro slog::log
[−]
[src]
macro_rules! log { ($lvl:expr, $l:expr, $($k:expr => $v:expr),+; $($args:tt)+ ) => { ... }; ($lvl:expr, $l:expr, $msg:expr) => { ... }; ($lvl:expr, $l:expr, $msg:expr; $($k:expr => $v:expr),+) => { ... }; ($lvl:expr, $l:expr, $msg:expr; $($k:expr => $v:expr),+,) => { ... }; ($lvl:expr, $l:expr, $($args:tt)+) => { ... }; }
Log message of a given level
Use wrappers error!
, warn!
etc. instead
The max_level_*
features can be used to statically disable logging at
various levels.
Use longer name version macros if you want to prevent clash with legacy log
crate macro names (see examples/alternative_names.rs
).
The following invocations are supported.
Simple:
#[macro_use] extern crate slog; fn main() { let drain = slog::Discard; let root = slog::Logger::root(drain, o!("key1" => "value1", "key2" => "value2")); info!(root, "test info log"; "log-key" => true); }
Note that "key" => value
part is optional.
#[macro_use] extern crate slog; fn main() { let drain = slog::Discard; let root = slog::Logger::root(drain, o!("key1" => "value1", "key2" => "value2")); info!(root, "test info log"); }
Formatting support:
#[macro_use] extern crate slog; fn main() { let drain = slog::Discard; let root = slog::Logger::root(drain, o!("key1" => "value1", "key2" => "value2")); info!(root, "log-key" => true; "formatted: {}", 1); }
Again, "key" => value
is optional.
#[macro_use] extern crate slog; fn main() { let drain = slog::Discard; let root = slog::Logger::root(drain, o!("key1" => "value1", "key2" => "value2")); info!(root, "formatted: {}", 1); }