#!/usr/bin/perl -w
use strict;
use Test::More tests => 14;
use Devel::Size ':all';
sub zwapp;
sub swoosh($$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$);
sub crunch {
}
my $whack_size = total_size(\&whack);
my $zwapp_size = total_size(\&zwapp);
my $swoosh_size = total_size(\&swoosh);
my $crunch_size = total_size(\&crunch);
cmp_ok($whack_size, '>', 0, 'CV generated at runtime has a size');
if("$]" >= 5.017) {
cmp_ok($zwapp_size, '==', $whack_size,
'CV stubbed at compiletime is the same size');
} else {
cmp_ok($zwapp_size, '>', $whack_size,
'CV stubbed at compiletime is larger (CvOUTSIDE is set and followed)');
}
cmp_ok(length prototype \&swoosh, '>', 0, 'prototype has a length');
cmp_ok($swoosh_size, '>', $zwapp_size + length prototype \&swoosh,
'prototypes add to the size');
cmp_ok($crunch_size, '>', $zwapp_size, 'sub bodies add to the size');
my $anon_proto = sub ($$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$) {};
my $anon_size = total_size(sub {});
my $anon_proto_size = total_size($anon_proto);
cmp_ok($anon_size, '>', 0, 'anonymous subroutines have a size');
cmp_ok(length prototype $anon_proto, '>', 0, 'prototype has a length');
cmp_ok($anon_proto_size, '>', $anon_size + length prototype $anon_proto,
'prototypes add to the size');
SKIP: {
use vars '@b';
my $aelemfast_lex = total_size(sub {my @a; $a[0]});
my $aelemfast = total_size(sub {my @a; $b[0]});
# This one is sane even before Dave's lexical aelemfast changes:
cmp_ok($aelemfast_lex, '>', $anon_size,
'aelemfast for a lexical is handled correctly');
skip('alemfast was extended to lexicals after this perl was released', 1)
if $] < 5.008004;
cmp_ok($aelemfast, '>', $aelemfast_lex,
'aelemfast for a package variable is larger');
}
my $short_pvop = total_size(sub {goto GLIT});
my $long_pvop = total_size(sub {goto KREEK_KREEK_CLANK_CLANK});
cmp_ok($short_pvop, '>', $anon_size, 'OPc_PVOP can be measured');
is($long_pvop, $short_pvop + 19, 'the only size difference is the label length');
sub bloop {
my $clunk = shift;
if (--$clunk > 0) {
bloop($clunk);
}
}
my $before_size = total_size(\&bloop);
bloop(42);
my $after_size = total_size(\&bloop);
cmp_ok($after_size, '>', $before_size, 'Recursion increases the PADLIST');
sub closure_with_eval {
my $a;
return sub { eval ""; $a };
}
sub closure_without_eval {
my $a;
return sub { require ""; $a };
}
if ($] > 5.017001) {
# Again relying too much on the core's implementation, but while that holds,
# this does test that CvOUTSIDE() is being followed.
cmp_ok(total_size(closure_with_eval()), '>',
total_size(closure_without_eval()) + 256,
'CvOUTSIDE is now NULL on cloned closures, unless they have eval');
} else {
# Seems that they differ by a few bytes on 5.8.x
cmp_ok(total_size(closure_with_eval()), '<=',
total_size(closure_without_eval()) + 256,
"CvOUTSIDE is set on all cloned closures, so these won't differ by much");
}