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// See: https://github.com/rust-lang/rust/pull/121364
#![allow(unknown_lints, ambiguous_negative_literals)]
//mod init;
//mod procmacro;
//mod tc39_262;
/// The simplest possible logger that logs to stderr.
///
/// This logger does no filtering. Instead, it relies on the `log` crates
/// filtering via its global max_level setting.
///
/// This provides a super simple logger that works with the `log` crate.
/// We don't need anything fancy; just basic log levels and the ability to
/// print to stderr. We therefore avoid bringing in extra dependencies just
/// for this functionality.
#[cfg(all(test))]
#[derive(Debug)]
pub(crate) struct Logger(());
#[cfg(all(test, feature = "std", feature = "logging"))]
const LOGGER: &'static Logger = &Logger(());
#[cfg(all(test))]
impl Logger {
/// Create a new logger that logs to stderr and initialize it as the
/// global logger. If there was a problem setting the logger, then an
/// error is returned.
pub(crate) fn init() -> Result<(), log::SetLoggerError> {
#[cfg(all(feature = "std", feature = "logging"))]
{
log::set_logger(LOGGER)?;
log::set_max_level(log::LevelFilter::Trace);
Ok(())
}
#[cfg(not(all(feature = "std", feature = "logging")))]
{
Ok(())
}
}
}
#[cfg(all(test, feature = "std", feature = "logging"))]
impl log::Log for Logger {
fn enabled(&self, _: &log::Metadata<'_>) -> bool {
// We set the log level via log::set_max_level, so we don't need to
// implement filtering here.
true
}
fn log(&self, record: &log::Record<'_>) {
let now = jiff::Timestamp::now();
match (record.file(), record.line()) {
(Some(file), Some(line)) => {
std::eprintln!(
"{}|{}|{}|{}:{}: {}",
now,
record.level(),
record.target(),
file,
line,
record.args()
);
}
(Some(file), None) => {
std::eprintln!(
"{}|{}|{}|{}: {}",
now,
record.level(),
record.target(),
file,
record.args()
);
}
_ => {
std::eprintln!(
"{}|{}|{}: {}",
now,
record.level(),
record.target(),
record.args()
);
}
}
}
fn flush(&self) {
// We use eprintln! which is flushed on every call.
}
}
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