comment on

When I add control over die() and exit() I can make the code stop right at the first die on any version. Tested on 5.8 and 5.22.

#!/usr/bin/perl
use warnings;
use strict;

BEGIN {
# control eval's bypass of die
$SIG{__DIE__} = \&Splacker;
}

print $], "\n";

{   package My::Obj;

    sub new {
        my $class = shift;
        bless {@_}, $class
    }

    sub DESTROY {
        my $self = shift;
        eval { 1 } if ! $self->{finished};
    }
}

my $o1 = 'My::Obj'->new(finished => 1);
undef $o1;


# Exception overlooked.
eval {
    my $o2 = 'My::Obj'->new;
    die "Exception!";
};
if ($@) {
    warn "Caught with \$\@: $@";
}


# Exception details lost.
eval {
    my $o2 = 'My::Obj'->new;
    die "Exception!";
1 } or do {
    warn "Caught with or: $@";
};


# Same as above.
use Try::Tiny;

try {
    my $o3 = 'My::Obj'->new;
    die "Exception!";
} catch {
    warn "Caught with Try::Tiny: $_";
};

sub Splacker {
my $error = shift;
print $error;
CORE::exit(1);
}
[download]

Output:

5.008008
Exception! at C:\xampp\cgi-bin\Test\tester.pl line 32.
[download]

Update: And if you comment out CORE::exit(1); the output is.

Caught with or:  at C:\xampp\cgi-bin\Test\tester.pl line 44.
Caught with Try::Tiny:  at C:\xampp\cgi-bin\Test\tester.pl line 55.
5.008008
Exception! at C:\xampp\cgi-bin\Test\tester.pl line 32.
Exception! at C:\xampp\cgi-bin\Test\tester.pl line 42.
Exception! at C:\xampp\cgi-bin\Test\tester.pl line 53.
[download]

Update 2: Forgot about STDERR. If used in print like so.

sub Splacker {
my $error = shift;
print STDERR $error;
}
[download]

The Output is...

Exception! at C:\xampp\cgi-bin\Test\tester.pl line 32.
Exception! at C:\xampp\cgi-bin\Test\tester.pl line 42.
Caught with or:  at C:\xampp\cgi-bin\Test\tester.pl line 44.
Exception! at C:\xampp\cgi-bin\Test\tester.pl line 53.
Caught with Try::Tiny:  at C:\xampp\cgi-bin\Test\tester.pl line 55.
5.008008
[download]

In reply to Re: Bug in eval in pre-5.14 by $h4X4_|=73}{
in thread Bug in eval in pre-5.14 by choroba

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