I don't know if that works for you, but you could try to move the evaluation into the subroutine:
#!/usr/bin/perl
use Safe;
use IO::File;
my $code =<<'END';
my $a = '';
my $f = IO::File->new('/etc/passwd');
while (my $l = $f->getline) { $a .= $l }
return $a;
END
my $compartment = Safe->new;
$safe = sub { $compartment->reval($code) || die $@};
print $safe->();
This way the reval complains with Can't locate object method "new" via package "IO::File", which seems to me what you want (and a use is caught).
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|