A demonstration: 
sub baz {
   my $data = "something";  # Doesn't have to be a string
   die($data);
}

sub bar {
   baz();
}

sub foo {
   bar();
}

#main
if (!eval { foo(); 1 }) {
   print("Got data from deep function: $@");
}

[download]

In reply to Re: Is there a way to unwind the call stack and return a value? by ikegami
in thread Is there a way to unwind the call stack and return a value? by erabus

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