#!./perl
BEGIN {
unshift @INC, 't';
require Config;
if (($Config::Config{'extensions'} !~ /\bB\b/) ){
print "1..0 # Skip -- Perl configured without B module\n";
exit 0;
}
}
$| = 1;
use warnings;
use strict;
BEGIN {
eval { require threads; threads->import; }
}
use Test::More;
BEGIN { use_ok( 'B' ); }
package Testing::Symtable;
use vars qw($This @That %wibble $moo %moo);
my $not_a_sym = 'moo';
sub moo { 42 }
sub car { 23 }
package Testing::Symtable::Foo;
sub yarrow { "Hock" }
package Testing::Symtable::Bar;
sub hock { "yarrow" }
package main;
use vars qw(%Subs);
local %Subs = ();
B::walksymtable(\%Testing::Symtable::, 'find_syms', sub { $_[0] =~ /Foo/ },
'Testing::Symtable::');
sub B::GV::find_syms {
my($symbol) = @_;
$main::Subs{$symbol->STASH->NAME . '::' . $symbol->NAME}++;
}
my @syms = map { 'Testing::Symtable::'.$_ } qw(This That wibble moo car
BEGIN);
push @syms, "Testing::Symtable::Foo::yarrow";
# Make sure we hit all the expected symbols.
ok( join('', sort @syms) eq join('', sort keys %Subs), 'all symbols found' );
# Make sure we only hit them each once.
ok( (!grep $_ != 1, values %Subs), '...and found once' );
# Tests for MAGIC / MOREMAGIC
ok( B::svref_2object(\$.)->MAGIC->TYPE eq "\0", '$. has \0 magic' );
{
my $e = '';
local $SIG{__DIE__} = sub { $e = $_[0] };
# Used to dump core, bug #16828
eval { B::svref_2object(\$.)->MAGIC->MOREMAGIC->TYPE; };
like( $e, qr/Can't call method "TYPE" on an undefined value/,
'$. has no more magic' );
}
{
my $pie = 'Good';
# This needs to be a package variable, as vars in the pad have some flags.
my $r = B::svref_2object(\$::data2);
is($r->FLAGS(), 0, "uninitialised package variable has flags of 0");
is($r->SvTYPE(), 0, "uninitialised package variable has type 0");
is($r->POK(), 0, "POK false");
is($r->ROK(), 0, "ROK false");
is($r->MAGICAL(), 0, "MAGICAL false");
$::data2 = $pie;
isnt($r->FLAGS(), 0, "initialised package variable has nonzero flags");
isnt($r->SvTYPE(), 0, "initialised package variable has nonzero type");
isnt($r->POK(), 0, "POK true");
is($r->ROK(), 0, "ROK false");
is($r->MAGICAL(), 0, "MAGICAL false");
$::data2 = substr $pie, 0, 1;
isnt($r->FLAGS(), 0, "initialised package variable has nonzero flags");
isnt($r->SvTYPE(), 0, "initialised package variable has nonzero type");
isnt($r->POK(), 0, "POK true");
is($r->ROK(), 0, "ROK false");
is($r->MAGICAL(), 0, "MAGICAL true");
$::data2 = \$pie;
isnt($r->FLAGS(), 0, "initialised package variable has nonzero flags");
isnt($r->SvTYPE(), 0, "initialised package variable has nonzero type");
is($r->POK(), 0, "POK false");
isnt($r->ROK(), 0, "ROK true");
is($r->MAGICAL(), 0, "MAGICAL false");
is($r->REFCNT(), 1, "Reference count is 1");
{
my $ref = \$::data2;
is($r->REFCNT(), 2, "Second reference");
}
is($r->REFCNT(), 1, "Reference count is 1");
}
my $r = qr/foo/;
my $obj = B::svref_2object($r);
my $regexp = ($] < 5.011) ? $obj->MAGIC : $obj;
ok($regexp->precomp() eq 'foo', 'Get string from qr//');
like($regexp->REGEX(), qr/\d+/, "REGEX() returns numeric value");
like($regexp->compflags, qr/^\d+\z/, "compflags returns numeric value");
is B::svref_2object(qr/(?{time})/)->qr_anoncv->ROOT->first->name, 'qr',
'qr_anoncv';
my $iv = 1;
my $iv_ref = B::svref_2object(\$iv);
is(ref $iv_ref, "B::IV", "Test B:IV return from svref_2object");
is($iv_ref->REFCNT, 1, "Test B::IV->REFCNT");
# Flag tests are needed still
#diag $iv_ref->FLAGS();
my $iv_ret = $iv_ref->object_2svref();
is(ref $iv_ret, "SCALAR", "Test object_2svref() return is SCALAR");
is($$iv_ret, $iv, "Test object_2svref()");
is($iv_ref->int_value, $iv, "Test int_value()");
is($iv_ref->IV, $iv, "Test IV()");
is($iv_ref->IVX(), $iv, "Test IVX()");
is($iv_ref->UVX(), $iv, "Test UVX()");
is(eval { $iv_ref->RV() }, undef, 'Test RV() on IV');
like($@, qr/argument is not SvROK/, 'Test RV() IV');
$iv = \"Pie";
my $val = eval { $iv_ref->RV() };
is(ref $val, 'B::PV', 'Test RV() on a reference');
is($val->PV(), 'Pie', 'Value expected');
is($@, '', "Test RV()");
my $pv = "Foo";
my $pv_ref = B::svref_2object(\$pv);
is(ref $pv_ref, "B::PV", "Test B::PV return from svref_2object");
is($pv_ref->REFCNT, 1, "Test B::PV->REFCNT");
# Flag tests are needed still
#diag $pv_ref->FLAGS();
my $pv_ret = $pv_ref->object_2svref();
is(ref $pv_ret, "SCALAR", "Test object_2svref() return is SCALAR");
is($$pv_ret, $pv, "Test object_2svref()");
is($pv_ref->PV(), $pv, "Test PV()");
is(eval { $pv_ref->RV() }, undef, 'Test RV() on PV');
like($@, qr/argument is not SvROK/, 'Test RV() on PV');
is($pv_ref->PVX(), $pv, "Test PVX()");
$pv = \"Pie";
$val = eval { $pv_ref->RV() };
is(ref $val, 'B::PV', 'Test RV() on a reference');
is($val->PV(), 'Pie', 'Value expected');
is($@, '', "Test RV()");
my $nv = 1.1;
my $nv_ref = B::svref_2object(\$nv);
is(ref $nv_ref, "B::NV", "Test B::NV return from svref_2object");
is($nv_ref->REFCNT, 1, "Test B::NV->REFCNT");
# Flag tests are needed still
#diag $nv_ref->FLAGS();
my $nv_ret = $nv_ref->object_2svref();
is(ref $nv_ret, "SCALAR", "Test object_2svref() return is SCALAR");
is($$nv_ret, $nv, "Test object_2svref()");
is($nv_ref->NV, $nv, "Test NV()");
is($nv_ref->NVX(), $nv, "Test NVX()");
is(eval { $nv_ref->RV() }, undef, 'Test RV() on NV');
like($@, qr/Can't locate object method "RV" via package "B::NV"/,
'Test RV() on NV');
my $null = undef;
my $null_ref = B::svref_2object(\$null);
is(ref $null_ref, "B::NULL", "Test B::NULL return from svref_2object");
is($null_ref->REFCNT, 1, "Test B::NULL->REFCNT");
# Flag tests are needed still
#diag $null_ref->FLAGS();
my $null_ret = $nv_ref->object_2svref();
is(ref $null_ret, "SCALAR", "Test object_2svref() return is SCALAR");
is($$null_ret, $nv, "Test object_2svref()");
my $RV_class = $] >= 5.011 ? 'B::IV' : 'B::RV';
my $cv = sub{ 1; };
my $cv_ref = B::svref_2object(\$cv);
is($cv_ref->REFCNT, 1, "Test $RV_class->REFCNT");
is(ref $cv_ref, "$RV_class",
"Test $RV_class return from svref_2object - code");
my $cv_ret = $cv_ref->object_2svref();
is(ref $cv_ret, "REF", "Test object_2svref() return is REF");
is($$cv_ret, $cv, "Test object_2svref()");
my $av = [];
my $av_ref = B::svref_2object(\$av);
is(ref $av_ref, "$RV_class",
"Test $RV_class return from svref_2object - array");
my $hv = [];
my $hv_ref = B::svref_2object(\$hv);
is(ref $hv_ref, "$RV_class",
"Test $RV_class return from svref_2object - hash");
local *gv = *STDOUT;
my $gv_ref = B::svref_2object(\*gv);
is(ref $gv_ref, "B::GV", "Test B::GV return from svref_2object");
ok(! $gv_ref->is_empty(), "Test is_empty()");
ok($gv_ref->isGV_with_GP(), "Test isGV_with_GP()");
is($gv_ref->NAME(), "gv", "Test NAME()");
is($gv_ref->SAFENAME(), "gv", "Test SAFENAME()");
like($gv_ref->FILE(), qr/b\.t$/, "Testing FILE()");
is($gv_ref->SvTYPE(), B::SVt_PVGV, "Test SvTYPE()");
is($gv_ref->FLAGS() & B::SVTYPEMASK, B::SVt_PVGV, "Test SVTYPEMASK");
# The following return B::SPECIALs.
is(ref B::sv_yes(), "B::SPECIAL", "B::sv_yes()");
is(ref B::sv_no(), "B::SPECIAL", "B::sv_no()");
is(ref B::sv_undef(), "B::SPECIAL", "B::sv_undef()");
SKIP: {
skip('no fork', 1)
unless ($Config::Config{d_fork} or $Config::Config{d_pseudofork});
my $pid;
pipe my $r, my $w or die "Can't pipe: $!";;
if ($pid = fork) {
close $w;
my $type = <$r>;
close $r;
waitpid($pid,0);
is($type, "B::SPECIAL", "special SV table works after pseudofork");
}
else {
close $r;
$|++;
print $w ref B::svref_2object(\(!!0));
close $w;
exit;
}
}
# More utility functions
is(B::ppname(0), "pp_null", "Testing ppname (this might break if opnames.h is changed)");
is(B::opnumber("null"), 0, "Testing opnumber with opname (null)");
is(B::opnumber("pp_null"), 0, "Testing opnumber with opname (pp_null)");
{
my $hash = B::hash("wibble");
like($hash, qr/\A0x[0-9a-f]+\z/, "Testing B::hash(\"wibble\")");
unlike($hash, qr/\A0x0+\z/, "Testing B::hash(\"wibble\")");
SKIP: {
skip "Nulls don't hash to the same bucket regardless of length with this PERL_HASH implementation", 20
if B::hash("") ne B::hash("\0" x 19);
like(B::hash("\0" x $_), qr/\A0x0+\z/, "Testing B::hash(\"0\" x $_)")
for 0..19;
}
$hash = eval {B::hash(chr 256)};
is($hash, undef, "B::hash() refuses non-octets");
like($@, qr/^Wide character in subroutine entry/);
$hash = B::hash(chr 163);
my $str = chr(163) . chr 256;
chop $str;
is(B::hash($str), $hash, 'B::hash() with chr 128-256 is well-behaved');
}
{
is(B::cstring(undef), '0', "Testing B::cstring(undef)");
is(B::perlstring(undef), '0', "Testing B::perlstring(undef)");
my @common = map {eval $_, $_}
'"wibble"', '"\""', '"\'"', '"\\\\"', '"\\n\\r\\t\\b\\a\\f"', '"\000"',
'"\000\000"', '"\000Bing\000"', ord 'N' == 78 ? '"\\177"' : ();
my $oct = sprintf "\\%03o", ord '?';
my @tests = (@common, '$_', '"$_"', '@_', '"@_"', '??N', qq{"$oct?N"},
ord 'N' == 78 ? (chr 11, '"\v"'): ());
while (my ($test, $expect) = splice @tests, 0, 2) {
is(B::cstring($test), $expect, "B::cstring($expect)");
}
@tests = (@common, '$_', '"\$_"', '@_', '"\@_"', '??N', '"??N"',
chr 256, '"\x{100}"', chr 65536, '"\x{10000}"',
ord 'N' == 78 ? (chr 11, '"\013"'): ());
while (my ($test, $expect) = splice @tests, 0, 2) {
is(B::perlstring($test), $expect, "B::perlstring($expect)");
utf8::upgrade $test;
$expect =~ s/\\b/sprintf("\\x{%x}", utf8::unicode_to_native(8))/eg;
$expect =~ s/\\([0-7]{3})/sprintf "\\x\{%x\}", oct $1/eg;
is(B::perlstring($test), $expect, "B::perlstring($expect) (Unicode)");
}
}
{
my @tests = ((map {eval(qq{"$_"}), $_} '\\n', '\\r', '\\t',
'\\b', '\\a', '\\f', '\\000', '\\\'', '?'), '"', '"',
ord 'N' == 78 ? (chr 11, '\v', "\177", '\\177') : ());
while (my ($test, $expect) = splice @tests, 0, 2) {
is(B::cchar($test), "'${expect}'", "B::cchar(qq{$expect})");
}
}
is(B::class(bless {}, "Wibble::Bibble"), "Bibble", "Testing B::class()");
is(B::cast_I32(3.14), 3, "Testing B::cast_I32()");
is(B::opnumber("chop"), $] >= 5.015 ? 39 : 38,
"Testing opnumber with opname (chop)");
{
no warnings 'once';
my $sg = B::sub_generation();
*UNIVERSAL::hand_waving = sub { };
ok( $sg < B::sub_generation, "sub_generation increments" );
}
like( B::amagic_generation, qr/^\d+\z/, "amagic_generation" );
is(B::svref_2object(sub {})->ROOT->ppaddr, 'PL_ppaddr[OP_LEAVESUB]',
'OP->ppaddr');
# This one crashes from perl 5.8.9 to B 1.24 (perl 5.13.6):
B::svref_2object(sub{y/\x{100}//})->ROOT->first->first->sibling->sv;
ok 1, 'B knows that UTF trans is a padop in 5.8.9, not an svop';
{
my $o = B::svref_2object(sub{0;0})->ROOT->first->first;
# Make sure we are testing what we think we are testing. If these two
# fail, tweak the test to find a nulled cop a different way.
is $o->name, "null", 'first op of sub{0;0} is a null';
is B::ppname($o->targ),'pp_nextstate','first op of sub{0;0} was a cop';
# Test its class
is B::class($o), "COP", 'nulled cops are of class COP';
}
{
format FOO =
foo
.
my $f = B::svref_2object(*FOO{FORMAT});
isa_ok $f, 'B::FM';
can_ok $f, 'LINES';
}
is B::safename("\cLAST_FH"), "^LAST_FH", 'basic safename test';
my $sub1 = sub {die};
{ no warnings 'once'; no strict; *Peel:: = *{"Pe\0e\x{142}::"} }
my $sub2 = eval 'package Peel; sub {die}';
my $cop = B::svref_2object($sub1)->ROOT->first->first;
my $bobby = B::svref_2object($sub2)->ROOT->first->first;
is $cop->stash->object_2svref, \%main::, 'COP->stash';
is $cop->stashpv, 'main', 'COP->stashpv';
SKIP: {
skip "no nulls in packages before 5.17", 1 if $] < 5.017;
is $bobby->stashpv, "Pe\0e\x{142}", 'COP->stashpv with utf8 and nulls';
}
SKIP: {
skip "no stashoff", 2 if $] < 5.017 || !$Config::Config{useithreads};
like $cop->stashoff, qr/^[1-9]\d*\z/a, 'COP->stashoff';
isnt $cop->stashoff, $bobby->stashoff,
'different COP->stashoff for different stashes';
}
my $pmop = B::svref_2object(sub{ qr/fit/ })->ROOT->first->first->sibling;
$regexp = $pmop->pmregexp;
is B::class($regexp), 'REGEXP', 'B::PMOP::pmregexp returns a regexp';
is $regexp->precomp, 'fit', 'pmregexp returns the right regexp';
# Test $B::overlay
{
my $methods = {
BINOP => [ qw(last) ],
COP => [ qw(arybase cop_seq file filegv hints hints_hash io
label line stash stashpv
stashoff warnings) ],
LISTOP => [ qw(children) ],
LOGOP => [ qw(other) ],
LOOP => [ qw(lastop nextop redoop) ],
OP => [ qw(desc flags name next opt ppaddr private sibling
size spare targ type) ],
PADOP => [ qw(gv padix sv) ],
PMOP => [ qw(code_list pmflags pmoffset pmreplroot pmreplstart pmstash pmstashpv precomp reflags) ],
PVOP => [ qw(pv) ],
SVOP => [ qw(gv sv) ],
UNOP => [ qw(first) ],
};
my $overlay = {};
my $op = B::svref_2object(sub { my $x = 1 })->ROOT;
for my $class (sort keys %$methods) {
for my $meth (@{$methods->{$class}}) {
my $full = "B::${class}::$meth";
die "Duplicate method '$full'\n"
if grep $_ eq $full, @{$overlay->{$meth}};
push @{$overlay->{$meth}}, "B::${class}::$meth";
}
}
{
local $B::overlay; # suppress 'used once' warning
local $B::overlay = { $$op => $overlay };
for my $class (sort keys %$methods) {
bless $op, "B::$class"; # naughty
for my $meth (@{$methods->{$class}}) {
if ($op->can($meth)) {
my $list = $op->$meth;
ok(defined $list
&& ref($list) eq "ARRAY"
&& grep($_ eq "B::${class}::$meth", @$list),
"overlay: B::$class $meth");
}
else {
pass("overlay: B::$class $meth (skipped; no method)");
}
}
}
}
# B::overlay should be disabled again here
is($op->name, "leavesub", "overlay: orig name");
}
{ # [perl #118525]
{
sub foo {}
my $cv = B::svref_2object(\&foo);
ok($cv, "make a B::CV from a non-anon sub reference");
isa_ok($cv, "B::CV");
my $gv = $cv->GV;
ok($gv, "we get a GV from a GV on a normal sub");
isa_ok($gv, "B::GV");
is($gv->NAME, "foo", "check the GV name");
SKIP:
{ # do we need these version checks?
skip "no HEK before 5.18", 1 if $] < 5.018;
is($cv->NAME_HEK, undef, "no hek for a global sub");
}
}
SKIP:
{
skip "no HEK before 5.18", 4 if $] < 5.018;
eval <<'EOS'
{
use feature 'lexical_subs';
no warnings 'experimental::lexical_subs';
my sub bar {};
my $cv = B::svref_2object(\&bar);
ok($cv, "make a B::CV from a lexical sub reference");
isa_ok($cv, "B::CV");
my $hek = $cv->NAME_HEK;
is($hek, "bar", "check the NAME_HEK");
my $gv = $cv->GV;
isa_ok($gv, "B::GV", "GV on a lexical sub");
}
1;
EOS
or die "lexical_subs test failed to compile: $@";
}
}
{ # [perl #120535]
my %h = ( "\x{100}" => 1 );
my $b = B::svref_2object(\%h);
my ($k, $v) = $b->ARRAY;
is($k, "\x{100}", "check utf8 preserved by B::HV::ARRAY");
}
# test op_parent
SKIP: {
unless ($B::OP::does_parent) {
skip "op_parent only present with -DPERL_OP_PARENT builds", 6;
}
my $lineseq = B::svref_2object(sub{my $x = 1})->ROOT->first;
is ($lineseq->type, B::opnumber('lineseq'),
'op_parent: top op is lineseq');
my $first = $lineseq->first;
my $second = $first->sibling;
is(ref $second->sibling, "B::NULL", 'op_parent: second sibling is null');
is($first->moresib, 1 , 'op_parent: first sibling: moresib');
is($second->moresib, 0, 'op_parent: second sibling: !moresib');
is($$lineseq, ${$first->parent}, 'op_parent: first sibling okay');
is($$lineseq, ${$second->parent}, 'op_parent: second sibling okay');
}
# make sure ->sv, -gv methods do the right thing on threaded builds
{
# for some reason B::walkoptree only likes a sub name, not a code ref
my ($gv, $sv);
sub gvsv_const {
# make the early pad slots something unlike a threaded const or
# gvsv
my ($dummy1, $dummy2, $dummy3, $dummy4) = qw(foo1 foo2 foo3 foo4);
my $self = shift;
if ($self->name eq 'gvsv') {
$gv = $self->gv;
}
elsif ($self->name eq 'const') {
$sv = $self->sv;
}
};
B::walkoptree(B::svref_2object(sub {our $x = 1})->ROOT, "::gvsv_const");
ok(defined $gv, "gvsv->gv seen");
ok(defined $sv, "const->sv seen");
if ($Config::Config{useithreads}) {
# should get NULLs
is(ref($gv), "B::SPECIAL", "gvsv->gv is special");
is(ref($sv), "B::SPECIAL", "const->sv is special");
is($$gv, 0, "gvsv->gv special is 0 (NULL)");
is($$sv, 0, "const->sv special is 0 (NULL)");
}
else {
is(ref($gv), "B::GV", "gvsv->gv is GV");
is(ref($sv), "B::IV", "const->sv is IV");
pass();
pass();
}
}
# Some pad tests
{
my $sub = sub { my main $a; CORE::state @b; our %c };
my $padlist = B::svref_2object($sub)->PADLIST;
is $padlist->MAX, 1, 'padlist MAX';
my @array = $padlist->ARRAY;
is @array, 2, 'two items from padlist ARRAY';
is ${$padlist->ARRAYelt(0)}, ${$array[0]},
'ARRAYelt(0) is first item from ARRAY';
is ${$padlist->ARRAYelt(1)}, ${$array[1]},
'ARRAYelt(1) is second item from ARRAY';
is ${$padlist->NAMES}, ${$array[0]},
'NAMES is first item from ARRAY';
my @names = $array[0]->ARRAY;
cmp_ok @names, ">=", 4, 'at least 4 pad names';
is join(" ", map($_->PV//"undef",@names[0..3])), 'undef $a @b %c',
'pad name PVs';
my @closures;
for (1,2) { push @closures, sub { sub { @closures } } }
my $sub1 = B::svref_2object($closures[0]);
my $sub2 = B::svref_2object($closures[1]);
is $sub2->PADLIST->id, $sub1->PADLIST->id, 'padlist id';
$sub1 = B::svref_2object(my $lr = $closures[0]());
$sub2 = B::svref_2object(my $lr2= $closures[1]());
is $sub2->PADLIST->outid, $sub1->PADLIST->outid, 'padlist outid';
}
done_testing();