Backtrace().frames.each(echo) # {ip=4770, closure=<Closure <anonymous> at /etc/ngs/bootstrap.ngs:3>} # {ip=4153, closure=<Closure bootstrap_exception_catch_wrapper at /etc/ngs/bootstrap.ngs:205>} # {ip=3583, closure=<Closure bootstrap at /etc/ngs/bootstrap.ngs:111>} # {ip=116587, closure=<Closure <anonymous> at <command line -pi switch>:2>}