use std::sync::Mutex;
lazy_static! {
static ref LOGGER: Mutex<Option<Box<dyn Logger>>> = Mutex::new(None);
}
#[derive(Debug, Copy, Clone)]
pub enum Log {
Info,
Warning,
Error,
}
pub trait Logger: Send + Sync {
fn log(&mut self, mode: Log, message: String);
}
pub struct DefaultLogger;
impl Logger for DefaultLogger {
fn log(&mut self, mode: Log, message: String) {
match mode {
Log::Info => println!("[INFO] {}", message),
Log::Warning => eprintln!("[WARNING] {}", message),
Log::Error => eprintln!("[ERROR] {}", message),
}
}
}
pub fn logger_setup<L>(instance: L)
where
L: Logger + 'static,
{
if let Ok(mut logger) = LOGGER.lock() {
*logger = Some(Box::new(instance));
}
}
pub fn logger_log(mode: Log, message: String) {
if let Ok(mut logger) = LOGGER.lock() {
if let Some(ref mut logger) = *logger {
logger.log(mode, message);
}
}
}
#[macro_export]
macro_rules! log {
($lvl:expr, $($arg:tt)+) => ({
$crate::log::logger_log($lvl, format!(
"[{}: {} | {}]:\n{}",
file!(),
line!(),
module_path!(),
format_args!($($arg)+)
))
})
}
#[macro_export]
macro_rules! info {
($($arg:tt)*) => (log!($crate::log::Log::Info, $($arg)*))
}
#[macro_export]
macro_rules! warn {
($($arg:tt)*) => (log!($crate::log::Log::Warning, $($arg)*))
}
#[macro_export]
macro_rules! error {
($($arg:tt)*) => (log!($crate::log::Log::Error, $($arg)*))
}