#!./perl
BEGIN {
chdir 't' if -d 't';
@INC = qw(../lib);
}
BEGIN { require "./test.pl"; }
plan( tests => 38 );
# Used to segfault (bug #15479)
fresh_perl_like(
'%:: = ""',
qr/Odd number of elements in hash assignment at - line 1\./,
{ switches => [ '-w' ] },
'delete $::{STDERR} and print a warning',
);
# Used to segfault
fresh_perl_is(
'BEGIN { $::{"X::"} = 2 }',
'',
{ switches => [ '-w' ] },
q(Insert a non-GV in a stash, under warnings 'once'),
);
{
no warnings 'deprecated';
ok( defined %oedipa::maas::, q(stashes happen to be defined if not used) );
ok( defined %{"oedipa::maas::"}, q(- work with hard refs too) );
ok( defined %tyrone::slothrop::, q(stashes are defined if seen at compile time) );
ok( defined %{"tyrone::slothrop::"}, q(- work with hard refs too) );
ok( defined %bongo::shaftsbury::, q(stashes are defined if a var is seen at compile time) );
ok( defined %{"bongo::shaftsbury::"}, q(- work with hard refs too) );
}
package tyrone::slothrop;
$bongo::shaftsbury::scalar = 1;
package main;
# Used to warn
# Unbalanced string table refcount: (1) for "A::" during global destruction.
# for ithreads.
{
local $ENV{PERL_DESTRUCT_LEVEL} = 2;
fresh_perl_is(
'package A; sub a { // }; %::=""',
'',
'',
);
}
# now tests in eval
ok( eval { no warnings 'deprecated'; defined %achtfaden:: }, 'works in eval{}' );
ok( eval q{ no warnings 'deprecated'; defined %schoenmaker:: }, 'works in eval("")' );
# now tests with strictures
{
use strict;
no warnings 'deprecated';
ok( defined %pig::, q(referencing a non-existent stash doesn't produce stricture errors) );
ok( !exists $pig::{bodine}, q(referencing a non-existent stash element doesn't produce stricture errors) );
}
SKIP: {
eval { require B; 1 } or skip "no B", 18;
*b = \&B::svref_2object;
my $CVf_ANON = B::CVf_ANON();
my $sub = do {
package one;
\&{"one"};
};
delete $one::{one};
my $gv = b($sub)->GV;
isa_ok( $gv, "B::GV", "deleted stash entry leaves CV with valid GV");
is( b($sub)->CvFLAGS & $CVf_ANON, $CVf_ANON, "...and CVf_ANON set");
is( eval { $gv->NAME }, "__ANON__", "...and an __ANON__ name");
is( eval { $gv->STASH->NAME }, "one", "...but leaves stash intact");
$sub = do {
package two;
\&{"two"};
};
%two:: = ();
$gv = b($sub)->GV;
isa_ok( $gv, "B::GV", "cleared stash leaves CV with valid GV");
is( b($sub)->CvFLAGS & $CVf_ANON, $CVf_ANON, "...and CVf_ANON set");
is( eval { $gv->NAME }, "__ANON__", "...and an __ANON__ name");
is( eval { $gv->STASH->NAME }, "__ANON__", "...and an __ANON__ stash");
$sub = do {
package three;
\&{"three"};
};
undef %three::;
$gv = b($sub)->GV;
isa_ok( $gv, "B::GV", "undefed stash leaves CV with valid GV");
is( b($sub)->CvFLAGS & $CVf_ANON, $CVf_ANON, "...and CVf_ANON set");
is( eval { $gv->NAME }, "__ANON__", "...and an __ANON__ name");
is( eval { $gv->STASH->NAME }, "__ANON__", "...and an __ANON__ stash");
my $sub = do {
package four;
sub { 1 };
};
%four:: = ();
my $gv = B::svref_2object($sub)->GV;
ok($gv->isa(q/B::GV/), "cleared stash leaves anon CV with valid GV");
my $st = eval { $gv->STASH->NAME };
{ local $TODO = 'STASHES not anonymized';
is($st, q/__ANON__/, "...and an __ANON__ stash");
}
my $sub = do {
package five;
sub { 1 };
};
undef %five::;
$gv = B::svref_2object($sub)->GV;
ok($gv->isa(q/B::GV/), "undefed stash leaves anon CV with valid GV");
$st = eval { $gv->STASH->NAME };
{ local $TODO = 'STASHES not anonymized';
is($st, q/__ANON__/, "...and an __ANON__ stash");
}
# [perl #58530]
fresh_perl_is(
'sub foo { 1 }; use overload q/""/ => \&foo;' .
'delete $main::{foo}; bless []',
"",
{},
"no segfault with overload/deleted stash entry [#58530]",
);
# CvSTASH should be null on a named sub if the stash has been deleted
{
package FOO;
sub foo {}
my $rfoo = \&foo;
package main;
delete $::{'FOO::'};
my $cv = B::svref_2object($rfoo);
# (is there a better way of testing for NULL ?)
my $stash = $cv->STASH;
like($stash, qr/B::SPECIAL/, "NULL CvSTASH on named sub");
}
# on glob reassignment, orphaned CV should have anon CvGV
{
my $r;
eval q[
package FOO2;
sub f{};
$r = \&f;
*f = sub {};
];
delete $FOO2::{f};
my $cv = B::svref_2object($r);
my $gv = $cv->GV;
ok($gv->isa(q/B::GV/), "orphaned CV has valid GV");
is($gv->NAME, '__ANON__', "orphaned CV has anon GV");
}
# deleting __ANON__ glob shouldn't break things
{
package FOO3;
sub named {};
my $anon = sub {};
my $named = eval q[\&named];
package main;
delete $FOO3::{named}; # make named anonymous
delete $FOO3::{__ANON__}; # whoops!
my ($cv,$gv);
$cv = B::svref_2object($named);
$gv = $cv->GV;
ok($gv->isa(q/B::GV/), "ex-named CV has valid GV");
is($gv->NAME, '__ANON__', "ex-named CV has anon GV");
$cv = B::svref_2object($anon);
$gv = $cv->GV;
ok($gv->isa(q/B::GV/), "anon CV has valid GV");
is($gv->NAME, '__ANON__', "anon CV has anon GV");
}
}
# make sure having a sub called __ANON__ doesn't confuse perl.
{
my $c;
sub __ANON__ { $c = (caller(0))[3]; }
__ANON__();
is ($c, 'main::__ANON__', '__ANON__ sub called ok');
}