• eval
• Safe
• B::Deparse
• fork, perlipc
• Inline::C, perlembed ;)
• Devel::GetSymbols

++ vs lbh qrpbqrq guvf hfvat n ge va Crey :)
Nabgure bar vs lbh qvq fb jvgubhg ernqvat n znahny svefg.
-- vs lbh hfrq OFQ pnrfne ;)
    - Whreq

I guess he wants to import some subs without loading whole package. Sounds like a very crazy idea.

One possible solution is creation of separate process so it can compile that package without execution. See source code of package O to find how to do it. B::Deparse can be used to obtain source code of those subs.

--
Ilya Martynov (http://martynov.org/)

> Sounds like a very crazy idea.
It is >:-)

> B::Deparse can be used to obtain source code of those subs.
That's close to what I want, and is probably going to be the most practical. I get the feeling I can't compile the optree and then selectively stop execution in the same script. I could just wait til TheDamian has the time to create and finish Parse::Perl ... hmmm.
Thanks for the input IlyaM!

broquaint

sub hello { 
  return "Hello"; 
} 
 
sub world { 
  return "world!"; 
} 
 
sub foo_bar { 
  my ($foo, $bar) = @_; 
  print "$foo $bar\n"; 
}
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use strict; 
 
# Try to load code from a different perl script. Put it in a closure
# and run run run... 
 
my $load_file = $ARGV[0]; 
 
# $flags 
my $in = 0; 
my @subs = (); 
my %routines = (); 
my %sub = (); 
 
open(IN, "<$load_file"); 
while (<IN>) { 
  if ( /sub (\w+) \{/ ) { 
    # hey! A routine has begun... 
    $in = 1; 
    push @subs,$1; 
    $routines{$1} = ""; 
  } 
  if ( $in == 1 ) { 
    if ( /\}/ ) { 
      # sub ends. 
      $in = 0; 
    } else { 
      s/^\s+//g; 
      $routines{$subs[$#subs]} .= $_ unless /sub/; 
    } 
  } 
} 
close(IN); 
 
# mmm - we now have the internals of the routines in core. 
# let's see what we can do with them. 
 
print "You have these subs:\n"; 
foreach my $subs (keys %routines) { 
  eval("\$sub{$subs} = sub { " . $routines{$subs} . " };"); 
  print "\$sub{$subs} = sub { " . $routines{$subs} . " };\n" 
} 
 
$sub{'foo_bar'}->($sub{'hello'}->(), $sub{'world'}->()),"\n";
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#!/usr/bin/perl -w
use strict;

print "I wonder what will happen?\n";

open ME, "$0|" or die "Cannot do $o:$!\n";
while(<ME>) {print;}
close ME;
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