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use lib '.';
use Error qw(:try);
use strict;
use warnings;
@Error::Bad::ISA = qw(Error);
$Error::Debug = 1; # turn on verbose stacktrace
sub abc {
try {
try {
throw Error::Simple("a simple error");
}
catch Error::Simple with {
my $err = shift;
throw Error::Bad(-text => "some text");
}
except {
return {
'Error::Simple' => sub { warn "simple" }
}
}
otherwise {
1;
} finally {
warn "finally\n";
};
}
catch Error::Bad with {
1;
};
}
sub def {
unlink("not such file") or
record Error::Simple("unlink: $!", $!) and return;
1;
}
abc();
my $x = prior Error;
print "--\n",$x->stacktrace;
unless(defined def()) {
my $x = prior Error 'main';
print "--\n",0+$x,"\n",$x; # 0+$x converts to Integer via "value" method
}