stacktrace.rs

use std::error::Error;

pub fn do_error_source<F>(source_opt: Option<&dyn Error>, f: F)
where
    F: Fn(&dyn Error),
{
    match source_opt {
        None => {}
        Some(source) => {
            f(source);
            do_error_source(source.source(), f);
        }
    }
}