1#!./perl 2 3BEGIN { 4 unshift @INC, 't'; 5 require Config; 6 if (($Config::Config{'extensions'} !~ /\bB\b/) ){ 7 print "1..0 # Skip -- Perl configured without B module\n"; 8 exit 0; 9 } 10} 11 12$| = 1; 13use warnings; 14use strict; 15BEGIN { 16 eval { require threads; threads->import; } 17} 18use Test::More; 19 20BEGIN { use_ok( 'B' ); } 21 22 23package Testing::Symtable; 24our ($This, @That, %wibble, $moo, %moo); 25my $not_a_sym = 'moo'; 26 27sub moo { 42 } 28sub car { 23 } 29 30 31package Testing::Symtable::Foo; 32sub yarrow { "Hock" } 33 34package Testing::Symtable::Bar; 35sub hock { "yarrow" } 36 37package main; 38our %Subs; 39local %Subs = (); 40B::walksymtable(\%Testing::Symtable::, 'find_syms', sub { $_[0] =~ /Foo/ }, 41 'Testing::Symtable::'); 42 43sub B::GV::find_syms { 44 my($symbol) = @_; 45 46 $main::Subs{$symbol->STASH->NAME . '::' . $symbol->NAME}++; 47} 48 49my @syms = map { 'Testing::Symtable::'.$_ } qw(This That wibble moo car); 50push @syms, "Testing::Symtable::Foo::yarrow"; 51 52# Make sure we hit all the expected symbols. 53ok( join('', sort @syms) eq join('', sort keys %Subs), 'all symbols found' ); 54 55# Make sure we only hit them each once. 56ok( (!grep $_ != 1, values %Subs), '...and found once' ); 57 58 59# Make sure method caches are not present when walking the sym tab 60@Testing::Method::Caches::Foo::ISA='Testing::Method::Caches::Bar'; 61sub Testing::Method::Caches::Bar::foo{} 62Testing::Method::Caches::Foo->foo; # caches the sub in the *foo glob 63 64my $have_cv; 65sub B::GV::method_cache_test { ${shift->CV} and ++$have_cv } 66 67B::walksymtable(\%Testing::Method::Caches::, 'method_cache_test', 68 sub { 1 }, 'Testing::Method::Caches::'); 69# $have_cv should only have been incremented for ::Bar::foo 70is $have_cv, 1, 'walksymtable clears cached methods'; 71 72 73# Tests for MAGIC / MOREMAGIC 74ok( B::svref_2object(\$.)->MAGIC->TYPE eq "\0", '$. has \0 magic' ); 75{ 76 my $e = ''; 77 local $SIG{__DIE__} = sub { $e = $_[0] }; 78 # Used to dump core, bug #16828 79 eval { B::svref_2object(\$.)->MAGIC->MOREMAGIC->TYPE; }; 80 like( $e, qr/Can't call method "TYPE" on an undefined value/, 81 '$. has no more magic' ); 82} 83 84{ 85 my $pie = 'Good'; 86 # This needs to be a package variable, as vars in the pad have some flags. 87 my $r = B::svref_2object(\$::data2); 88 is($r->FLAGS(), 0, "uninitialised package variable has flags of 0"); 89 is($r->SvTYPE(), 0, "uninitialised package variable has type 0"); 90 is($r->POK(), 0, "POK false"); 91 is($r->ROK(), 0, "ROK false"); 92 is($r->MAGICAL(), 0, "MAGICAL false"); 93 $::data2 = $pie; 94 isnt($r->FLAGS(), 0, "initialised package variable has nonzero flags"); 95 isnt($r->SvTYPE(), 0, "initialised package variable has nonzero type"); 96 isnt($r->POK(), 0, "POK true"); 97 is($r->ROK(), 0, "ROK false"); 98 is($r->MAGICAL(), 0, "MAGICAL false"); 99 100 $::data2 = substr $pie, 0, 1; 101 isnt($r->FLAGS(), 0, "initialised package variable has nonzero flags"); 102 isnt($r->SvTYPE(), 0, "initialised package variable has nonzero type"); 103 isnt($r->POK(), 0, "POK true"); 104 is($r->ROK(), 0, "ROK false"); 105 is($r->MAGICAL(), 0, "MAGICAL true"); 106 107 $::data2 = \$pie; 108 isnt($r->FLAGS(), 0, "initialised package variable has nonzero flags"); 109 isnt($r->SvTYPE(), 0, "initialised package variable has nonzero type"); 110 is($r->POK(), 0, "POK false"); 111 isnt($r->ROK(), 0, "ROK true"); 112 is($r->MAGICAL(), 0, "MAGICAL false"); 113 114 is($r->REFCNT(), 1, "Reference count is 1"); 115 { 116 my $ref = \$::data2; 117 is($r->REFCNT(), 2, "Second reference"); 118 } 119 is($r->REFCNT(), 1, "Reference count is 1"); 120 121} 122 123my $r = qr/foo/; 124my $regexp = B::svref_2object($r); 125ok($regexp->precomp() eq 'foo', 'Get string from qr//'); 126like($regexp->REGEX(), qr/\d+/, "REGEX() returns numeric value"); 127like($regexp->compflags, qr/^\d+\z/, "compflags returns numeric value"); 128is B::svref_2object(qr/(?{time})/)->qr_anoncv->ROOT->first->name, 'qr', 129 'qr_anoncv'; 130my $iv = 1; 131my $iv_ref = B::svref_2object(\$iv); 132is(ref $iv_ref, "B::IV", "Test B:IV return from svref_2object"); 133is($iv_ref->REFCNT, 1, "Test B::IV->REFCNT"); 134# Flag tests are needed still 135#diag $iv_ref->FLAGS(); 136my $iv_ret = $iv_ref->object_2svref(); 137is(ref $iv_ret, "SCALAR", "Test object_2svref() return is SCALAR"); 138is($$iv_ret, $iv, "Test object_2svref()"); 139is($iv_ref->int_value, $iv, "Test int_value()"); 140is($iv_ref->IV, $iv, "Test IV()"); 141is($iv_ref->IVX(), $iv, "Test IVX()"); 142is($iv_ref->UVX(), $iv, "Test UVX()"); 143is(eval { $iv_ref->RV() }, undef, 'Test RV() on IV'); 144like($@, qr/argument is not SvROK/, 'Test RV() IV'); 145$iv = \"Pie"; 146my $val = eval { $iv_ref->RV() }; 147is(ref $val, 'B::PV', 'Test RV() on a reference'); 148is($val->PV(), 'Pie', 'Value expected'); 149is($@, '', "Test RV()"); 150 151my $pv = "Foo"; 152my $pv_ref = B::svref_2object(\$pv); 153is(ref $pv_ref, "B::PV", "Test B::PV return from svref_2object"); 154is($pv_ref->REFCNT, 1, "Test B::PV->REFCNT"); 155# Flag tests are needed still 156#diag $pv_ref->FLAGS(); 157my $pv_ret = $pv_ref->object_2svref(); 158is(ref $pv_ret, "SCALAR", "Test object_2svref() return is SCALAR"); 159is($$pv_ret, $pv, "Test object_2svref()"); 160is($pv_ref->PV(), $pv, "Test PV()"); 161is(eval { $pv_ref->RV() }, undef, 'Test RV() on PV'); 162like($@, qr/argument is not SvROK/, 'Test RV() on PV'); 163is($pv_ref->PVX(), $pv, "Test PVX()"); 164$pv = \"Pie"; 165$val = eval { $pv_ref->RV() }; 166is(ref $val, 'B::PV', 'Test RV() on a reference'); 167is($val->PV(), 'Pie', 'Value expected'); 168is($@, '', "Test RV()"); 169 170my $nv = 1.1; 171my $nv_ref = B::svref_2object(\$nv); 172is(ref $nv_ref, "B::NV", "Test B::NV return from svref_2object"); 173is($nv_ref->REFCNT, 1, "Test B::NV->REFCNT"); 174# Flag tests are needed still 175#diag $nv_ref->FLAGS(); 176my $nv_ret = $nv_ref->object_2svref(); 177is(ref $nv_ret, "SCALAR", "Test object_2svref() return is SCALAR"); 178is($$nv_ret, $nv, "Test object_2svref()"); 179is($nv_ref->NV, $nv, "Test NV()"); 180is($nv_ref->NVX(), $nv, "Test NVX()"); 181is(eval { $nv_ref->RV() }, undef, 'Test RV() on NV'); 182like($@, qr/Can't locate object method "RV" via package "B::NV"/, 183 'Test RV() on NV'); 184 185my $null = undef; 186my $null_ref = B::svref_2object(\$null); 187is(ref $null_ref, "B::NULL", "Test B::NULL return from svref_2object"); 188is($null_ref->REFCNT, 1, "Test B::NULL->REFCNT"); 189# Flag tests are needed still 190#diag $null_ref->FLAGS(); 191my $null_ret = $nv_ref->object_2svref(); 192is(ref $null_ret, "SCALAR", "Test object_2svref() return is SCALAR"); 193is($$null_ret, $nv, "Test object_2svref()"); 194 195my $cv = sub{ 1; }; 196my $cv_ref = B::svref_2object(\$cv); 197is($cv_ref->REFCNT, 1, "Test B::IV->REFCNT"); 198is(ref $cv_ref, "B::IV", "Test B::IV return from svref_2object - code"); 199my $cv_ret = $cv_ref->object_2svref(); 200is(ref $cv_ret, "REF", "Test object_2svref() return is REF"); 201is($$cv_ret, $cv, "Test object_2svref()"); 202 203my $av = []; 204my $av_ref = B::svref_2object(\$av); 205is(ref $av_ref, "B::IV", "Test B::IV return from svref_2object - array"); 206 207my $hv = []; 208my $hv_ref = B::svref_2object(\$hv); 209is(ref $hv_ref, "B::IV", "Test B::IV return from svref_2object - hash"); 210 211local *gv = *STDOUT; 212my $gv_ref = B::svref_2object(\*gv); 213is(ref $gv_ref, "B::GV", "Test B::GV return from svref_2object"); 214ok(! $gv_ref->is_empty(), "Test is_empty()"); 215ok($gv_ref->isGV_with_GP(), "Test isGV_with_GP()"); 216is($gv_ref->NAME(), "gv", "Test NAME()"); 217is($gv_ref->SAFENAME(), "gv", "Test SAFENAME()"); 218like($gv_ref->FILE(), qr/b\.t$/, "Testing FILE()"); 219is($gv_ref->SvTYPE(), B::SVt_PVGV, "Test SvTYPE()"); 220is($gv_ref->FLAGS() & B::SVTYPEMASK, B::SVt_PVGV, "Test SVTYPEMASK"); 221 222# The following return B::SPECIALs. 223is(ref B::sv_yes(), "B::SPECIAL", "B::sv_yes()"); 224is(ref B::sv_no(), "B::SPECIAL", "B::sv_no()"); 225is(ref B::sv_undef(), "B::SPECIAL", "B::sv_undef()"); 226SKIP: { 227 skip('no fork', 1) 228 unless ($Config::Config{d_fork} or $Config::Config{d_pseudofork}); 229 my $pid; 230 pipe my $r, my $w or die "Can't pipe: $!";; 231 if ($pid = fork) { 232 close $w; 233 my $type = <$r>; 234 close $r; 235 waitpid($pid,0); 236 is($type, "B::SPECIAL", "special SV table works after pseudofork"); 237 } 238 else { 239 close $r; 240 $|++; 241 print $w ref B::svref_2object(\(!!0)); 242 close $w; 243 exit; 244 } 245} 246 247# More utility functions 248is(B::ppname(0), "pp_null", "Testing ppname (this might break if opnames.h is changed)"); 249is(B::opnumber("null"), 0, "Testing opnumber with opname (null)"); 250is(B::opnumber("pp_null"), 0, "Testing opnumber with opname (pp_null)"); 251{ 252 my $hash = B::hash("wibble"); 253 like($hash, qr/\A0x[0-9a-f]+\z/, "Testing B::hash(\"wibble\")"); 254 unlike($hash, qr/\A0x0+\z/, "Testing B::hash(\"wibble\")"); 255 256 SKIP: { 257 skip "Nulls don't hash to the same bucket regardless of length with this PERL_HASH implementation", 20 258 if B::hash("") ne B::hash("\0" x 19); 259 like(B::hash("\0" x $_), qr/\A0x0+\z/, "Testing B::hash(\"0\" x $_)") 260 for 0..19; 261 } 262 263 $hash = eval {B::hash(chr 256)}; 264 is($hash, undef, "B::hash() refuses non-octets"); 265 like($@, qr/^Wide character in subroutine entry/); 266 267 $hash = B::hash(chr 163); 268 my $str = chr(163) . chr 256; 269 chop $str; 270 is(B::hash($str), $hash, 'B::hash() with chr 128-256 is well-behaved'); 271} 272{ 273 is(B::cstring(undef), '0', "Testing B::cstring(undef)"); 274 is(B::perlstring(undef), '0', "Testing B::perlstring(undef)"); 275 276 my @common = map {eval $_, $_} 277 '"wibble"', '"\""', '"\'"', '"\\\\"', '"\\n\\r\\t\\b\\a\\f"', '"\000"', 278 '"\000\000"', '"\000Bing\000"', ord 'N' == 78 ? '"\\177"' : (); 279 280 my $oct = sprintf "\\%03o", ord '?'; 281 my @tests = (@common, '$_', '"$_"', '@_', '"@_"', '??N', qq{"$oct?N"}, 282 ord 'N' == 78 ? (chr 11, '"\v"'): ()); 283 while (my ($test, $expect) = splice @tests, 0, 2) { 284 is(B::cstring($test), $expect, "B::cstring($expect)"); 285 } 286 287 @tests = (@common, '$_', '"\$_"', '@_', '"\@_"', '??N', '"??N"', 288 chr 256, '"\x{100}"', chr 65536, '"\x{10000}"', 289 ord 'N' == 78 ? (chr 11, '"\013"'): ()); 290 while (my ($test, $expect) = splice @tests, 0, 2) { 291 is(B::perlstring($test), $expect, "B::perlstring($expect)"); 292 utf8::upgrade $test; 293 $expect =~ s/\\([0-7]{3})/sprintf "\\x\{%x\}", oct $1/eg; 294 is(B::perlstring($test), $expect, "B::perlstring($expect) (Unicode)"); 295 } 296} 297{ 298 my @tests = ((map {eval(qq{"$_"}), $_} '\\n', '\\r', '\\t', 299 '\\b', '\\a', '\\f', '\\000', '\\\'', '?'), '"', '"', 300 ord 'N' == 78 ? (chr 11, '\v', "\177", '\\177') : ()); 301 302 while (my ($test, $expect) = splice @tests, 0, 2) { 303 is(B::cchar($test), "'${expect}'", "B::cchar(qq{$expect})"); 304 } 305} 306 307is(B::class(bless {}, "Wibble::Bibble"), "Bibble", "Testing B::class()"); 308is(B::cast_I32(3.14), 3, "Testing B::cast_I32()"); 309is(B::opnumber("chop"), 39, "Testing opnumber with opname (chop)"); 310 311{ 312 no warnings 'once'; 313 my $sg = B::sub_generation(); 314 *UNIVERSAL::hand_waving = sub { }; 315 ok( $sg < B::sub_generation, "sub_generation increments" ); 316} 317 318like( B::amagic_generation, qr/^\d+\z/, "amagic_generation" ); 319 320is(B::svref_2object(sub {})->ROOT->ppaddr, 'PL_ppaddr[OP_LEAVESUB]', 321 'OP->ppaddr'); 322 323B::svref_2object(sub{y/\x{100}//})->ROOT->first->first->sibling->sv; 324ok 1, 'B knows that UTF trans is a padop, not an svop'; 325 326{ 327 my $o = B::svref_2object(sub{0;0})->ROOT->first->first; 328 # Make sure we are testing what we think we are testing. If these two 329 # fail, tweak the test to find a nulled cop a different way. 330 is $o->name, "null", 'first op of sub{0;0} is a null'; 331 is B::ppname($o->targ),'pp_nextstate','first op of sub{0;0} was a cop'; 332 # Test its class 333 is B::class($o), "COP", 'nulled cops are of class COP'; 334} 335 336{ 337 format FOO = 338foo 339. 340 my $f = B::svref_2object(*FOO{FORMAT}); 341 isa_ok $f, 'B::FM'; 342 can_ok $f, 'LINES'; 343} 344 345is B::safename("\cLAST_FH"), "^LAST_FH", 'basic safename test'; 346 347my $sub1 = sub {die}; 348{ no warnings 'once'; no strict; *Peel:: = *{"Pe\0e\x{142}::"} } 349my $sub2 = eval 'package Peel; sub {die}'; 350my $cop = B::svref_2object($sub1)->ROOT->first->first; 351my $bobby = B::svref_2object($sub2)->ROOT->first->first; 352is $cop->stash->object_2svref, \%main::, 'COP->stash'; 353is $cop->stashpv, 'main', 'COP->stashpv'; 354 355is $bobby->stashpv, "Pe\0e\x{142}", 'COP->stashpv with utf8 and nulls'; 356 357SKIP: { 358 skip "no stashoff", 2 unless $Config::Config{useithreads}; 359 like $cop->stashoff, qr/^[1-9]\d*\z/a, 'COP->stashoff'; 360 isnt $cop->stashoff, $bobby->stashoff, 361 'different COP->stashoff for different stashes'; 362} 363 364my $pmop = B::svref_2object(sub{ qr/fit/ })->ROOT->first->first->sibling; 365$regexp = $pmop->pmregexp; 366is B::class($regexp), 'REGEXP', 'B::PMOP::pmregexp returns a regexp'; 367is $regexp->precomp, 'fit', 'pmregexp returns the right regexp'; 368 369 370# Test $B::overlay 371{ 372 my $methods = { 373 BINOP => [ qw(last) ], 374 COP => [ qw(arybase cop_seq file filegv hints hints_hash io 375 label line stash stashpv 376 stashoff warnings) ], 377 LISTOP => [ qw(children) ], 378 LOGOP => [ qw(other) ], 379 LOOP => [ qw(lastop nextop redoop) ], 380 OP => [ qw(desc flags name next opt ppaddr private sibling 381 size spare targ type) ], 382 PADOP => [ qw(gv padix sv) ], 383 PMOP => [ qw(code_list pmflags pmoffset pmreplroot pmreplstart pmstash pmstashpv precomp reflags) ], 384 PVOP => [ qw(pv) ], 385 SVOP => [ qw(gv sv) ], 386 UNOP => [ qw(first) ], 387 }; 388 389 my $overlay = {}; 390 my $op = B::svref_2object(sub { my $x = 1 })->ROOT; 391 392 for my $class (sort keys %$methods) { 393 for my $meth (@{$methods->{$class}}) { 394 my $full = "B::${class}::$meth"; 395 die "Duplicate method '$full'\n" 396 if grep $_ eq $full, @{$overlay->{$meth}}; 397 push @{$overlay->{$meth}}, "B::${class}::$meth"; 398 } 399 } 400 401 { 402 local $B::overlay; # suppress 'used once' warning 403 local $B::overlay = { $$op => $overlay }; 404 405 for my $class (sort keys %$methods) { 406 bless $op, "B::$class"; # naughty 407 for my $meth (@{$methods->{$class}}) { 408 if ($op->can($meth)) { 409 my $list = $op->$meth; 410 ok(defined $list 411 && ref($list) eq "ARRAY" 412 && grep($_ eq "B::${class}::$meth", @$list), 413 "overlay: B::$class $meth"); 414 } 415 else { 416 pass("overlay: B::$class $meth (skipped; no method)"); 417 } 418 } 419 } 420 } 421 # B::overlay should be disabled again here 422 is($op->name, "leavesub", "overlay: orig name"); 423} 424 425{ # [perl #118525] 426 { 427 sub foo {} 428 my $cv = B::svref_2object(\&foo); 429 ok($cv, "make a B::CV from a non-anon sub reference"); 430 isa_ok($cv, "B::CV"); 431 my $gv = $cv->GV; 432 ok($gv, "we get a GV from a GV on a normal sub"); 433 isa_ok($gv, "B::GV"); 434 is($gv->NAME, "foo", "check the GV name"); 435 is($cv->NAME_HEK, undef, "no hek for a global sub"); 436 } 437 438 { 439 use feature 'lexical_subs'; 440 no warnings 'experimental::lexical_subs'; 441 my sub bar {}; 442 my $cv = B::svref_2object(\&bar); 443 ok($cv, "make a B::CV from a lexical sub reference"); 444 isa_ok($cv, "B::CV"); 445 my $hek = $cv->NAME_HEK; 446 is($hek, "bar", "check the NAME_HEK"); 447 my $gv = $cv->GV; 448 isa_ok($gv, "B::GV", "GV on a lexical sub"); 449 } 450} 451 452{ # [perl #120535] 453 my %h = ( "\x{100}" => 1 ); 454 my $b = B::svref_2object(\%h); 455 my ($k, $v) = $b->ARRAY; 456 is($k, "\x{100}", "check utf8 preserved by B::HV::ARRAY"); 457} 458 459# test op_parent 460 461SKIP: { 462 ok($B::OP::does_parent, "does_parent always set"); 463 my $lineseq = B::svref_2object(sub{my $x = 1})->ROOT->first; 464 is ($lineseq->type, B::opnumber('lineseq'), 465 'op_parent: top op is lineseq'); 466 my $first = $lineseq->first; 467 my $second = $first->sibling; 468 is(ref $second->sibling, "B::NULL", 'op_parent: second sibling is null'); 469 is($first->moresib, 1 , 'op_parent: first sibling: moresib'); 470 is($second->moresib, 0, 'op_parent: second sibling: !moresib'); 471 is($$lineseq, ${$first->parent}, 'op_parent: first sibling okay'); 472 is($$lineseq, ${$second->parent}, 'op_parent: second sibling okay'); 473} 474 475 476# make sure ->sv, -gv methods do the right thing on threaded builds 477{ 478 479 # for some reason B::walkoptree only likes a sub name, not a code ref 480 my ($gv, $sv); 481 sub gvsv_const { 482 # make the early pad slots something unlike a threaded const or 483 # gvsv 484 my ($dummy1, $dummy2, $dummy3, $dummy4) = qw(foo1 foo2 foo3 foo4); 485 my $self = shift; 486 if ($self->name eq 'gvsv') { 487 $gv = $self->gv; 488 } 489 elsif ($self->name eq 'const') { 490 $sv = $self->sv; 491 } 492 }; 493 494 B::walkoptree(B::svref_2object(sub {our $x = 1})->ROOT, "::gvsv_const"); 495 ok(defined $gv, "gvsv->gv seen"); 496 ok(defined $sv, "const->sv seen"); 497 if ($Config::Config{useithreads}) { 498 # should get NULLs 499 is(ref($gv), "B::SPECIAL", "gvsv->gv is special"); 500 is(ref($sv), "B::SPECIAL", "const->sv is special"); 501 is($$gv, 0, "gvsv->gv special is 0 (NULL)"); 502 is($$sv, 0, "const->sv special is 0 (NULL)"); 503 } 504 else { 505 is(ref($gv), "B::GV", "gvsv->gv is GV"); 506 is(ref($sv), "B::IV", "const->sv is IV"); 507 pass(); 508 pass(); 509 } 510 511} 512 513 514# Some pad tests 515{ 516 my $sub = sub { my main $a; CORE::state @b; our %c }; 517 my $padlist = B::svref_2object($sub)->PADLIST; 518 is $padlist->MAX, 1, 'padlist MAX'; 519 my @array = $padlist->ARRAY; 520 is @array, 2, 'two items from padlist ARRAY'; 521 is ${$padlist->ARRAYelt(0)}, ${$array[0]}, 522 'ARRAYelt(0) is first item from ARRAY'; 523 is ${$padlist->ARRAYelt(1)}, ${$array[1]}, 524 'ARRAYelt(1) is second item from ARRAY'; 525 is ${$padlist->NAMES}, ${$array[0]}, 526 'NAMES is first item from ARRAY'; 527 my @names = $array[0]->ARRAY; 528 cmp_ok @names, ">=", 4, 'at least 4 pad names'; 529 is join(" ", map($_->PV//"undef",@names[0..3])), 'undef $a @b %c', 530 'pad name PVs'; 531 532 my @closures; 533 for (1,2) { push @closures, sub { sub { @closures } } } 534 my $sub1 = B::svref_2object($closures[0]); 535 my $sub2 = B::svref_2object($closures[1]); 536 is $sub2->PADLIST->id, $sub1->PADLIST->id, 'padlist id'; 537 $sub1 = B::svref_2object(my $lr = $closures[0]()); 538 $sub2 = B::svref_2object(my $lr2= $closures[1]()); 539 is $sub2->PADLIST->outid, $sub1->PADLIST->outid, 'padlist outid'; 540} 541 542# GH #17301 aux_list() sometimes returned wrong #args 543 544{ 545 my $big = ($Config::Config{uvsize} > 4); 546 my $self; 547 my $sub = $big 548 ? sub { $self->{h1}{h2}{h3}{h4}{h5}{h6}{h7}{h8}{h9} } 549 : sub { $self->{h1}{h2}{h3}{h4} }; 550 my $cv = B::svref_2object($sub); 551 my $op = $cv->ROOT->first->first->next; 552 my @items = $op->aux_list($cv); 553 is +@items, $big ? 11 : 6, 'GH #17301'; 554} 555 556 557done_testing(); 558