Issue #16791 has been updated by Dan0042 (Daniel DeLorme). nobu (Nobuyoshi Nakada) wrote in #note-7: > That executes `exit(nil)` and results in `TypeError`. Ah, interesting, I was testing in irb where `exit(nil)` was equivalent to `exit(0)` Eregon (Benoit Daloze) wrote in #note-8: > nobu (Nobuyoshi Nakada) wrote in #note-7: > > It may be acceptable to let `exit` accept a `SystemExit` instance though. > > I think that would be useful. > I'd guess it would behave as something like: > ```ruby > # useful if terminated by a signal: > exit(status) => > exit(status.exitstatus || status.termsig || status.stopsig || 1) > ``` Are we talking about SystemExit or Process::Status? I don't understand how SystemExit would work or be useful here, but I _love_ the idea of `exit($?)` serving as a shortcut for that long expression. Actually it seems as if a signal-terminated process has an exit status of 128+signal in the shell. So `exit($?)` could be a shortcut for `exit($?.exitstatus || 128 + ($?.termsig || $?.stopsig || 0))`. I think there's a real win in having the easier to use shorter expression be more robust/correct than the longer `exit($?.exitstatus)` > It's probably even better to raise a `SignalException` on `exit(status)` if `status.signaled?`, that way the information is completely forwarded to the parent process. Maybe... but honestly I'm not sure it would be architecturally correct for the process to fake being terminated by a signal. Also what would happen if the process was catching the signal that caused the subprocess to terminate? It seems simpler and less edge-case-prone to let the `exit` method do a regular exit. ```ruby trap("PIPE"){ } system("cmd1") or #terminated by PIPE exit($?) #does not exit because of trap? #we reach here even though cmd1 failed? ``` ---------------------------------------- Feature #16791: Shortcut for Process::Status.exitstatus https://bugs.ruby-lang.org/issues/16791#change-85711 * Author: 0x81000000 (/ /) * Status: Open * Priority: Normal ---------------------------------------- [Updated] ``` s = `csc x.cs`.sub(/.*?\n\n/m, '') puts s if s != ''; exit $?.exitstatus if $?.exitstatus > 0 system 'mono x.exe'; exit $?.exitstatus ``` ``` class Process::Status alias :es :exitstatus end ``` ``` s = `csc x.cs`.sub(/.*?\n\n/m, '') puts s if s != ''; exit $?.es if $?.es > 0 system 'mono x.exe'; exit $?.es ``` -- https://bugs.ruby-lang.org/ Unsubscribe: <mailto:ruby-core-request / ruby-lang.org?subject=unsubscribe> <http://lists.ruby-lang.org/cgi-bin/mailman/options/ruby-core>