Hey!

I'm trying to initialize 2 loggers (as in log::Log), one as the default global logger, and another as an opt-in logger used by certain modules.

I'm trying for it to look like log::info!("..."); and an additional my_mod::info!("...");.

It kinda works with this snippet:

mod my_log {
    #![allow(unused)]
    use std::sync::OnceLock;
    use log::Log;

    pub static LOGGER: OnceLock<Box<dyn Log>> = OnceLock::new();
    
    #[clippy::format_args]
    macro_rules! debug {
        ($($arg:tt)+) => {
            log::debug!(logger: crate::my_log::LOGGER.get().unwrap(), $($arg)+)
        };
    }
    #[clippy::format_args]
    macro_rules! info {
        ($($arg:tt)+) => {
            log::info!(logger: crate::my_log::LOGGER.get().unwrap(), $($arg)+)
        };
    }
    #[clippy::format_args]
    macro_rules! warn {
        ($($arg:tt)+) => {
            log::warn!(logger: crate::my_log::LOGGER.get().unwrap(), $($arg)+)
        };
    }
    #[clippy::format_args]
    macro_rules! error {
        ($($arg:tt)+) => {
            log::error!(logger: crate::my_log::LOGGER.get().unwrap(), $($arg)+)
        };
    }
    pub(crate) use debug;
    pub(crate) use info;
    pub(crate) use warn;
    pub(crate) use error;
}

Unfortunately I get an error for pub(crate) use warn;:

error[E0659]: `warn` is ambiguous
  --> my_bin/src/main.rs:91:20
   |
91 |     pub(crate) use warn;
   |                    ^^^^ ambiguous name
   |
   = note: ambiguous because of a name conflict with a builtin attribute
   = note: `warn` could refer to a built-in attribute
note: `warn` could also refer to the macro defined here
  --> my_bin/src/main.rs:79:5
   |
79 | /     macro_rules! warn {
80 | |         ($($arg:tt)+) => {
81 | |             log::warn!(logger: crate::my_log::LOGGER.get().unwrap(), $($arg)+)
82 | |         };
83 | |     }
   | |_____^

Is there a way to disambiguate and tell the compiler that I'm referring to the macro defined in the same module?
(Or, is there another way to export warn! as my_mod::warn!?)

2 posts - 1 participant

Read full topic