Test no feature bareword_filehandles

todo:

print HANDLE
print HANDLE LIST
printf HANDLE
printf HANDLE LIST
say HANDLE
say HANDLE LIST
readline
<> / <HANDLE>
<<>> - has an implicit argument
truncate
stat
-X
lstat
open
close
eof
fileno
flock
getc
read
write ?
seek
tell
select
sysopen
sysread
syswrite
sysseek
pipe

socket
connect
bind
listen
recv
send
setsockopt
getsockopt
shutdown
socketpair
accept
getpeername
getsockname

binmode
ioctl
fcntl
chmod - doesn't accept bareword handles
chown - doesn't accept bareword handles

opendir
closedir
readdir
seekdir
telldir
rewinddir
chdir

also check

sort
map
grep

aren't modified


__END__
# NAME defaults and explicitly on
#!perl -c
use File::Temp qw(tempfile);
use Fcntl qw(SEEK_SET);
use Socket;
my ($fh, $name) = tempfile;
open FOO, ">", File::Spec->devnull;
print FOO;
print FOO "Hello";
printf FOO "Hello";
seek FOO, 0, SEEK_SET;
truncate FOO, 0;
print FOO "Something read\n";
close FOO;
<FOO>;
{
    local *ARGV;
    local *ARGVOUT;
    @ARGV = $name;
    <<>>;
    <>;
}
pipe FH1, FH2;
socketpair S1, S2, AF_UNIX, SOCK_STREAM, PF_UNSPEC;
shutdown S1, 0;

use feature "bareword_filehandles";
open FOO, ">", File::Spec->devnull;
print FOO;
print FOO "Hello";
printf FOO "Hello";
seek FOO, 0, SEEK_SET;
truncate FOO, 0;
print FOO "Something read\n";
close FOO;
<FOO>;
{
    local *ARGV;
    local *ARGVOUT;
    @ARGV = $name;
    <<>>;
    <>;
}
pipe FH3, FH4;
socketpair S3, S4, AF_UNIX, SOCK_STREAM, PF_UNSPEC;
shutdown S3, 0;

EXPECT
- syntax OK
########
# NAME check atan2() with a handle doesn't trigger bareword filehandle errors
no feature "bareword_filehandles", "indirect";
my $x = atan2(FOO 1, 2);
# my original approach to this hooked newGVREF(), which the parsing for most LOPs (as with
# atan2() above) could end up calling newGVREF(), producing an unexpected error message.
EXPECT
OPTIONS fatal
Number found where operator expected (Do you need to predeclare "FOO"?) at - line 2, near "FOO 1"
Missing comma after first argument to atan2 function at - line 2, near "2)"
Execution of - aborted due to compilation errors.
########
# NAME print HANDLE LIST, printf HANDLE LIST, print HANDLE, printf HANDLE
use File::Spec;
open FOO, ">", File::Spec->devnull or die $!;
$_ = "abc";
print FOO "test\n";
printf FOO "test\n";
print FOO;
printf FOO;
no feature "bareword_filehandles";
print FOO "test2\n";
printf FOO "test2\n";
print FOO;
printf FOO;
print STDERR;
print STDOUT;
print ARGV;
print ARGVOUT;
print DATA;
print STDIN;
EXPECT
OPTIONS fatal
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 9.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 10.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 11.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 12.
Execution of - aborted due to compilation errors.
########
# NAME say HANDLE LIST, say HANDLE
use File::Spec;
use feature "say";
open FOO, ">", File::Spec->devnull or die $!;
$_ = "abc";
say FOO "test\n";
say FOO;
no feature "bareword_filehandles";
say FOO "test2\n";
say FOO;
EXPECT
OPTIONS fatal
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 8.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 9.
Execution of - aborted due to compilation errors.
########
# NAME readline FOO, readline, <>, <FOO>
use File::Spec;
open FOO, "<", File::Spec->devnull or die $!;
my $x = readline FOO;
$x .= readline FOO; # rcatline
$x = readline(FOO); # parsed a little differently with ()
$x .= readline(FOO);
$x = <FOO>;
$x .= <FOO>;
no feature "bareword_filehandles";
$x = readline FOO;
$x .= readline FOO; # rcatline
$x = readline(FOO); # parsed a little differently with ()
$x .= readline(FOO);
$x = <FOO>;
$x .= <FOO>;
$x = readline STDIN;
$x = <STDIN>;
EXPECT
OPTIONS fatal
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 10.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 11.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 12.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 13.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 14.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 15.
Execution of - aborted due to compilation errors.
########
# NAME truncate
use strict;
use warnings;
# if all goes well this doesn't run anyway
my $name = "bare$$.tmp";
END { unlink $name if $name; }
open FOO, ">", $name or die;
print FOO "Non-zero length data\n";
truncate FOO, 2;
no feature "bareword_filehandles";
truncate FOO, 1;
EXPECT
OPTIONS fatal
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 10.
Execution of - aborted due to compilation errors.
########
# NAME stat, lstat, -X
use File::Spec;
open FOO, "<", File::Spec->devnull;
my @x = stat FOO;
@x = lstat FOO;
my $x = -s FOO;
no feature "bareword_filehandles";
@x = stat FOO;
@x = lstat FOO;
$x = -s FOO;
EXPECT
OPTIONS fatal
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 7.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 8.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 9.
Execution of - aborted due to compilation errors.
########
# NAME open, close, eof, fileno
use File::Spec;
open FOO, "<", File::Spec->devnull;
my $x = eof FOO;
$x = fileno FOO;
close FOO;
no feature "bareword_filehandles";
open FOO, "<", File::Spec->devnull;
$x = eof FOO;
$x = fileno FOO;
close FOO;
EXPECT
OPTIONS fatal
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 7.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 8.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 9.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 10.
Execution of - aborted due to compilation errors.
########
# NAME flock
use Fcntl ":flock";
open FOO, "<", $0 or die;
flock FOO, LOCK_SH;
no feature "bareword_filehandles";
flock FOO, LOCK_UN;
EXPECT
OPTIONS fatal
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 5.
Execution of - aborted due to compilation errors.
########
# NAME getc, read, seek, tell
open FOO, "<", $0 or die;
my $x = getc FOO;
read(FOO, $x, 1);
$x = tell FOO;
seek FOO, 0, 0;
no feature "bareword_filehandles";
$x = getc FOO;
read(FOO, $x, 1);
$x = tell FOO;
seek FOO, 0, 0;
EXPECT
OPTIONS fatal
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 7.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 8.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 9.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 10.
Execution of - aborted due to compilation errors.
########
# NAME select
open FOO, "<", $0 or die;
my $old = select FOO;
no feature "bareword_filehandles";
select FOO;
select $old;
EXPECT
OPTIONS fatal
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 4.
Execution of - aborted due to compilation errors.
########
# NAME sysopen, sysread, syswrite, sysseek
use Fcntl;
use File::Spec;
sysopen FOO, File::Spec->devnull, O_RDWR or die;
sysread FOO, my $x, 10;
syswrite FOO, "Test";
my $y = sysseek FOO, 0, SEEK_CUR;
close FOO;
no feature "bareword_filehandles";
sysopen FOO, File::Spec->devnull, O_RDWR or die;
sysread FOO, my $x, 10;
syswrite FOO, "Test";
my $y = sysseek FOO, 0, SEEK_CUR;
EXPECT
OPTIONS fatal
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 9.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 10.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 11.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 12.
Execution of - aborted due to compilation errors.
########
# NAME pipe
my $fh;
pipe IN, $fh;
pipe $fh, OUT;
pipe IN, OUT;
no feature "bareword_filehandles";
pipe IN, $fh;
pipe $fh, OUT;
pipe IN, OUT;
EXPECT
OPTIONS fatal
Bareword filehandle "IN" not allowed under 'no feature "bareword_filehandles"' at - line 6.
Bareword filehandle "OUT" not allowed under 'no feature "bareword_filehandles"' at - line 7.
Bareword filehandle "IN" not allowed under 'no feature "bareword_filehandles"' at - line 8.
Bareword filehandle "OUT" not allowed under 'no feature "bareword_filehandles"' at - line 8.
Execution of - aborted due to compilation errors.
########
# NAME socket, connect, bind, listen
my $fh;
# this won't run, just use dummy values for domain, type, protocol
socket(FOO, 0, 0,0);
connect(FOO, "abc");
bind(FOO, "abc");
listen(FOO, 5);
no feature "bareword_filehandles";
socket(FOO, 0, 0,0);
connect(FOO, "abc");
bind(FOO, "abc");
listen(FOO, 5);
EXPECT
OPTIONS fatal
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 8.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 9.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 10.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 11.
Execution of - aborted due to compilation errors.
########
# NAME accept
accept(FOO, CHILD);
accept($fh, CHILD);
accept(FOO, $fh);
no feature "bareword_filehandles";
accept(FOO, CHILD);
accept($fh, CHILD);
accept(FOO, $fh);
accept(*FOO, *CHILD);
EXPECT
OPTIONS fatal
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 5.
Bareword filehandle "CHILD" not allowed under 'no feature "bareword_filehandles"' at - line 5.
Bareword filehandle "CHILD" not allowed under 'no feature "bareword_filehandles"' at - line 6.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 7.
Execution of - aborted due to compilation errors.
########
# NAME accept some more
accept FOO, CHILD ;
accept $fh, CHILD ;
accept FOO, $fh ;
no feature "bareword_filehandles";
accept FOO, CHILD ;
accept $fh, CHILD ;
accept FOO, $fh;
package BAR {}
accept QUUX BAR, $fh;
sub BAR::QUUX { $fh }
EXPECT
OPTIONS fatal
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 5.
Bareword filehandle "CHILD" not allowed under 'no feature "bareword_filehandles"' at - line 5.
Bareword filehandle "CHILD" not allowed under 'no feature "bareword_filehandles"' at - line 6.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 7.
Execution of - aborted due to compilation errors.
########
# NAME send, recv, setsockopt, getsockopt
send FOO, "abc", 0;
recv FOO, my $x, 10, 0;
setsockopt FOO, 0, 0, 0;
my $y = getsockopt FOO, 0, 0;
no feature "bareword_filehandles";
send FOO, "abc", 0;
recv FOO, my $x, 10, 0;
setsockopt FOO, 0, 0, 0;
my $y = getsockopt FOO, 0, 0;
EXPECT
OPTIONS fatal
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 6.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 7.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 8.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 9.
Execution of - aborted due to compilation errors.
########
# NAME shutdown, getsockname, getpeername
shutdown FOO, 0;
my $sockname = getsockname FOO;
my $peername = getpeername FOO;
no feature "bareword_filehandles";
shutdown FOO, 0;
$sockname = getsockname FOO;
$peername = getpeername FOO;
EXPECT
OPTIONS fatal
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 5.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 6.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 7.
Execution of - aborted due to compilation errors.
########
# NAME socketpair
my $fh;
socketpair IN, $fh, 0, 0, 0;
socketpair $fh, OUT, 0, 0, 0;
socketpair IN, OUT, 0, 0, 0;
no feature "bareword_filehandles";
socketpair IN, $fh, 0, 0, 0;
socketpair $fh, OUT, 0, 0, 0;
socketpair IN, OUT, 0, 0, 0;
EXPECT
OPTIONS fatal
Bareword filehandle "IN" not allowed under 'no feature "bareword_filehandles"' at - line 6.
Bareword filehandle "OUT" not allowed under 'no feature "bareword_filehandles"' at - line 7.
Bareword filehandle "IN" not allowed under 'no feature "bareword_filehandles"' at - line 8.
Bareword filehandle "OUT" not allowed under 'no feature "bareword_filehandles"' at - line 8.
Execution of - aborted due to compilation errors.
########
# NAME binmode, ioctl, fcntl
binmode FOO;
binmode FOO, ":raw";
ioctl FOO, 0, 0;
fcntl FOO, 0, 0;
no feature "bareword_filehandles";
binmode FOO;
binmode FOO, ":raw";
ioctl FOO, 0, 0;
fcntl FOO, 0, 0;
EXPECT
OPTIONS fatal
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 6.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 7.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 8.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 9.
Execution of - aborted due to compilation errors.
########
# NAME opendir, closedir, readdir
opendir FOO, ".";
my @x = readdir FOO;
chdir FOO;
closedir FOO;
no feature "bareword_filehandles";
opendir FOO, ".";
my @x = readdir FOO;
chdir FOO;
closedir FOO;
EXPECT
OPTIONS fatal
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 6.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 7.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 8.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 9.
Execution of - aborted due to compilation errors.
########
# NAME seekdir, telldir, rewinddir
use strict;
my $x = telldir FOO;
seekdir FOO, $x;
rewinddir FOO;
no feature "bareword_filehandles";
my $x = telldir FOO;
seekdir FOO, $x;
rewinddir FOO;
EXPECT
OPTIONS fatal
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 6.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 7.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 8.
Execution of - aborted due to compilation errors.
########
# NAME file tests
-T FOO;
-s FOO;
no feature "bareword_filehandles";
-T FOO;
-s FOO;
-s _;
EXPECT
OPTIONS fatal
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 4.
Bareword filehandle "FOO" not allowed under 'no feature "bareword_filehandles"' at - line 5.
Execution of - aborted due to compilation errors.
########
# NAME subroutine calls
use feature "say";
no feature "bareword_filehandles";
sub foo {}
print foo();
print foo;
say foo();
say foo;
-x foo();
-x foo;
EXPECT
########
# NAME method calls
# https://github.com/Perl/perl5/issues/19704
use feature "say";
no feature "bareword_filehandles";
sub foo {}
print main->foo();
print main->foo;
say main->foo();
say main->foo;
-x main->foo();
-x main->foo;
EXPECT
########
# NAME bareword method calls resolving to bareword filehandles
# https://github.com/Perl/perl5/issues/19426
use feature "say";
my $x = "Foo";
*Foo = *STDOUT; # make Foo an IO
sub Foo::say {
  say ">", @_[1..$#_];
}
Foo->say("Hello"); # calls IO::File->say()
no feature "bareword_filehandles";
"Foo"->say("Alpha"); # calls IO::File::say();
$x->say("Beta"); # calls IO::File::say()
Foo->say("Goodbye"); # calls Foo->say(), Foo now in stash cache
"Foo"->say("Gamma"); # calls Foo->say()
STDOUT->say("stdout"); # calls IO::File->say
use feature "bareword_filehandles";
Foo->say("Delta"); # calls Foo->say()
$x->say("Epsilon"); # calls Foo->say()
EXPECT
Hello
Alpha
Beta
>Goodbye
>Gamma
stdout
>Delta
>Epsilon
########
# NAME bareword handle in open dup handle calls
use strict;
open BAREWORD, ">&", STDOUT;
open my $fh2, ">&", BAREWORD;
no feature "bareword_filehandles";
open my $fh3, ">&", STDOUT;
open my $fh4, ">&", BAREWORD;
EXPECT
OPTIONS fatal
Bareword filehandle "BAREWORD" not allowed under 'no feature "bareword_filehandles"' at - line 6.
Execution of - aborted due to compilation errors.