#!./perl
-# This test harness will (eventually) test the "tie" functionality
-# without the need for a *DBM* implementation.
-
-# Currently it only tests use strict "untie".
+# Add new tests to the end with format:
+# ########
+#
+# # test description
+# Test code
+# EXPECT
+# Warn or die msgs (if any) at - line 1234
+#
chdir 't' if -d 't';
-@INC = "../lib";
-$ENV{PERL5LIB} = "../lib";
+@INC = '../lib';
+require './test.pl';
$|=1;
-undef $/;
-@prgs = split "\n########\n", <DATA>;
-print "1..", scalar @prgs, "\n";
-
-for (@prgs){
- my($prog,$expected) = split(/\nEXPECT\n/, $_);
- eval "$prog" ;
- $status = $?;
- $results = $@ ;
- $results =~ s/\n+$//;
- $expected =~ s/\n+$//;
- if ( $status or $results !~ /^$expected/){
- print STDERR "STATUS: $status\n";
- print STDERR "PROG: $prog\n";
- print STDERR "EXPECTED:\n$expected\n";
- print STDERR "GOT:\n$results\n";
- print "not ";
- }
- print "ok ", ++$i, "\n";
-}
+run_multiple_progs('', \*DATA);
+
+done_testing();
__END__
EXPECT
########
+# standard behaviour, without any extra references
+use Tie::Hash ;
+{package Tie::HashUntie;
+ use base 'Tie::StdHash';
+ sub UNTIE
+ {
+ warn "Untied\n";
+ }
+}
+tie %h, Tie::HashUntie;
+untie %h;
+EXPECT
+Untied
+########
+
# standard behaviour, with 1 extra reference
use Tie::Hash ;
$a = tie %h, Tie::StdHash;
########
# strict behaviour, without any extra references
-use strict 'untie';
+use warnings 'untie';
use Tie::Hash ;
tie %h, Tie::StdHash;
untie %h;
########
# strict behaviour, with 1 extra references generating an error
-use strict 'untie';
+use warnings 'untie';
use Tie::Hash ;
$a = tie %h, Tie::StdHash;
untie %h;
EXPECT
-Can't untie: 1 inner references still exist at
+untie attempted while 1 inner references still exist at - line 6.
########
# strict behaviour, with 1 extra references via tied generating an error
-use strict 'untie';
+use warnings 'untie';
use Tie::Hash ;
tie %h, Tie::StdHash;
$a = tied %h;
untie %h;
EXPECT
-Can't untie: 1 inner references still exist at
+untie attempted while 1 inner references still exist at - line 7.
########
# strict behaviour, with 1 extra references which are destroyed
-use strict 'untie';
+use warnings 'untie';
use Tie::Hash ;
$a = tie %h, Tie::StdHash;
$a = 0 ;
########
# strict behaviour, with extra 1 references via tied which are destroyed
-use strict 'untie';
+use warnings 'untie';
use Tie::Hash ;
tie %h, Tie::StdHash;
$a = tied %h;
EXPECT
########
-# strict error behaviour, with 2 extra references
-use strict 'untie';
+# strict error behaviour, with 2 extra references
+use warnings 'untie';
use Tie::Hash ;
$a = tie %h, Tie::StdHash;
$b = tied %h ;
untie %h;
EXPECT
-Can't untie: 2 inner references still exist at
+untie attempted while 2 inner references still exist at - line 7.
########
# strict behaviour, check scope of strictness.
-no strict 'untie';
+no warnings 'untie';
use Tie::Hash ;
$A = tie %H, Tie::StdHash;
$C = $B = tied %H ;
{
- use strict 'untie';
+ use warnings 'untie';
use Tie::Hash ;
tie %h, Tie::StdHash;
untie %h;
}
untie %H;
EXPECT
+########
+
+# Forbidden aggregate self-ties
+sub Self::TIEHASH { bless $_[1], $_[0] }
+{
+ my %c;
+ tie %c, 'Self', \%c;
+}
+EXPECT
+Self-ties of arrays and hashes are not supported at - line 6.
+########
+
+# Allowed scalar self-ties
+my $destroyed = 0;
+sub Self::TIESCALAR { bless $_[1], $_[0] }
+sub Self::DESTROY { $destroyed = 1; }
+{
+ my $c = 42;
+ tie $c, 'Self', \$c;
+}
+die "self-tied scalar not DESTROYed" unless $destroyed == 1;
+EXPECT
+########
+
+# Allowed glob self-ties
+my $destroyed = 0;
+my $printed = 0;
+sub Self2::TIEHANDLE { bless $_[1], $_[0] }
+sub Self2::DESTROY { $destroyed = 1; }
+sub Self2::PRINT { $printed = 1; }
+{
+ use Symbol;
+ my $c = gensym;
+ tie *$c, 'Self2', $c;
+ print $c 'Hello';
+}
+die "self-tied glob not PRINTed" unless $printed == 1;
+die "self-tied glob not DESTROYed" unless $destroyed == 1;
+EXPECT
+########
+
+# Allowed IO self-ties
+my $destroyed = 0;
+sub Self3::TIEHANDLE { bless $_[1], $_[0] }
+sub Self3::DESTROY { $destroyed = 1; }
+sub Self3::PRINT { $printed = 1; }
+{
+ use Symbol 'geniosym';
+ my $c = geniosym;
+ tie *$c, 'Self3', $c;
+ print $c 'Hello';
+}
+die "self-tied IO not PRINTed" unless $printed == 1;
+die "self-tied IO not DESTROYed" unless $destroyed == 1;
+EXPECT
+########
+
+# TODO IO "self-tie" via TEMP glob
+my $destroyed = 0;
+sub Self3::TIEHANDLE { bless $_[1], $_[0] }
+sub Self3::DESTROY { $destroyed = 1; }
+sub Self3::PRINT { $printed = 1; }
+{
+ use Symbol 'geniosym';
+ my $c = geniosym;
+ tie *$c, 'Self3', \*$c;
+ print $c 'Hello';
+}
+die "IO tied to TEMP glob not PRINTed" unless $printed == 1;
+die "IO tied to TEMP glob not DESTROYed" unless $destroyed == 1;
+EXPECT
+########
+
+# Interaction of tie and vec
+
+my ($a, $b);
+use Tie::Scalar;
+tie $a,Tie::StdScalar or die;
+vec($b,1,1)=1;
+$a = $b;
+vec($a,1,1)=0;
+vec($b,1,1)=0;
+die unless $a eq $b;
+EXPECT
+########
+
+# correct unlocalisation of tied hashes (patch #16431)
+use Tie::Hash ;
+tie %tied, Tie::StdHash;
+{ local $hash{'foo'} } warn "plain hash bad unlocalize" if exists $hash{'foo'};
+{ local $tied{'foo'} } warn "tied hash bad unlocalize" if exists $tied{'foo'};
+{ local $ENV{'foo'} } warn "%ENV bad unlocalize" if exists $ENV{'foo'};
+EXPECT
+########
+
+# An attempt at lvalueable barewords broke this
+tie FH, 'main';
+EXPECT
+Can't modify constant item in tie at - line 3, near "'main';"
+Execution of - aborted due to compilation errors.
+########
+
+# localizing tied hash slices
+$ENV{FooA} = 1;
+$ENV{FooB} = 2;
+print exists $ENV{FooA} ? 1 : 0, "\n";
+print exists $ENV{FooB} ? 2 : 0, "\n";
+print exists $ENV{FooC} ? 3 : 0, "\n";
+{
+ local @ENV{qw(FooA FooC)};
+ print exists $ENV{FooA} ? 4 : 0, "\n";
+ print exists $ENV{FooB} ? 5 : 0, "\n";
+ print exists $ENV{FooC} ? 6 : 0, "\n";
+}
+print exists $ENV{FooA} ? 7 : 0, "\n";
+print exists $ENV{FooB} ? 8 : 0, "\n";
+print exists $ENV{FooC} ? 9 : 0, "\n"; # this should not exist
+EXPECT
+1
+2
+0
+4
+5
+6
+7
+8
+0
+########
+#
+# FETCH freeing tie'd SV
+sub TIESCALAR { bless [] }
+sub FETCH { *a = \1; 1 }
+tie $a, 'main';
+print $a;
+EXPECT
+########
+
+# [20020716.007] - nested FETCHES
+
+sub F1::TIEARRAY { bless [], 'F1' }
+sub F1::FETCH { 1 }
+my @f1;
+tie @f1, 'F1';
+
+sub F2::TIEARRAY { bless [2], 'F2' }
+sub F2::FETCH { my $self = shift; my $x = $f1[3]; $self }
+my @f2;
+tie @f2, 'F2';
+
+print $f2[4][0],"\n";
+
+sub F3::TIEHASH { bless [], 'F3' }
+sub F3::FETCH { 1 }
+my %f3;
+tie %f3, 'F3';
+
+sub F4::TIEHASH { bless [3], 'F4' }
+sub F4::FETCH { my $self = shift; my $x = $f3{3}; $self }
+my %f4;
+tie %f4, 'F4';
+
+print $f4{'foo'}[0],"\n";
+
+EXPECT
+2
+3
+########
+# test untie() from within FETCH
+package Foo;
+sub TIESCALAR { my $pkg = shift; return bless [@_], $pkg; }
+sub FETCH {
+ my $self = shift;
+ my ($obj, $field) = @$self;
+ untie $obj->{$field};
+ $obj->{$field} = "Bar";
+}
+package main;
+tie $a->{foo}, "Foo", $a, "foo";
+my $s = $a->{foo}; # access once
+# the hash element should not be tied anymore
+print defined tied $a->{foo} ? "not ok" : "ok";
+EXPECT
+ok
+########
+# the tmps returned by FETCH should appear to be SCALAR
+# (even though they are now implemented using PVLVs.)
+package X;
+sub TIEHASH { bless {} }
+sub TIEARRAY { bless {} }
+sub FETCH {1}
+my (%h, @a);
+tie %h, 'X';
+tie @a, 'X';
+my $r1 = \$h{1};
+my $r2 = \$a[0];
+my $s = "$r1 ". ref($r1) . " $r2 " . ref($r2);
+$s=~ s/\(0x\w+\)//g;
+print $s, "\n";
+EXPECT
+SCALAR SCALAR SCALAR SCALAR
+########
+# [perl #23287] segfault in untie
+sub TIESCALAR { bless $_[1], $_[0] }
+my $var;
+tie $var, 'main', \$var;
+untie $var;
+EXPECT
+########
+# Test case from perlmonks by runrig
+# http://www.perlmonks.org/index.pl?node_id=273490
+# "Here is what I tried. I think its similar to what you've tried
+# above. Its odd but convenient that after untie'ing you are left with
+# a variable that has the same value as was last returned from
+# FETCH. (At least on my perl v5.6.1). So you don't need to pass a
+# reference to the variable in order to set it after the untie (here it
+# is accessed through a closure)."
+use strict;
+use warnings;
+package MyTied;
+sub TIESCALAR {
+ my ($class,$code) = @_;
+ bless $code, $class;
+}
+sub FETCH {
+ my $self = shift;
+ print "Untie\n";
+ $self->();
+}
+package main;
+my $var;
+tie $var, 'MyTied', sub { untie $var; 4 };
+print "One\n";
+print "$var\n";
+print "Two\n";
+print "$var\n";
+print "Three\n";
+print "$var\n";
+EXPECT
+One
+Untie
+4
+Two
+4
+Three
+4
+########
+# [perl #22297] cannot untie scalar from within tied FETCH
+my $counter = 0;
+my $x = 7;
+my $ref = \$x;
+tie $x, 'Overlay', $ref, $x;
+my $y;
+$y = $x;
+$y = $x;
+$y = $x;
+$y = $x;
+#print "WILL EXTERNAL UNTIE $ref\n";
+untie $$ref;
+$y = $x;
+$y = $x;
+$y = $x;
+$y = $x;
+#print "counter = $counter\n";
+
+print (($counter == 1) ? "ok\n" : "not ok\n");
+
+package Overlay;
+
+sub TIESCALAR
+{
+ my $pkg = shift;
+ my ($ref, $val) = @_;
+ return bless [ $ref, $val ], $pkg;
+}
+
+sub FETCH
+{
+ my $self = shift;
+ my ($ref, $val) = @$self;
+ #print "WILL INTERNAL UNITE $ref\n";
+ $counter++;
+ untie $$ref;
+ return $val;
+}
+EXPECT
+ok
+########
+
+# [perl #948] cannot meaningfully tie $,
+package TieDollarComma;
+
+sub TIESCALAR {
+ my $pkg = shift;
+ return bless \my $x, $pkg;
+}
+
+sub STORE {
+ my $self = shift;
+ $$self = shift;
+ print "STORE set '$$self'\n";
+}
+
+sub FETCH {
+ my $self = shift;
+ print "<FETCH>";
+ return $$self;
+}
+package main;
+
+tie $,, 'TieDollarComma';
+$, = 'BOBBINS';
+print "join", "things", "up\n";
+EXPECT
+STORE set 'BOBBINS'
+join<FETCH>BOBBINSthings<FETCH>BOBBINSup
+########
+
+# test SCALAR method
+package TieScalar;
+
+sub TIEHASH {
+ my $pkg = shift;
+ bless { } => $pkg;
+}
+
+sub STORE {
+ $_[0]->{$_[1]} = $_[2];
+}
+
+sub FETCH {
+ $_[0]->{$_[1]}
+}
+
+sub CLEAR {
+ %{ $_[0] } = ();
+}
+
+sub SCALAR {
+ print "SCALAR\n";
+ return 0 if ! keys %{$_[0]};
+ sprintf "%i/%i", scalar keys %{$_[0]}, scalar keys %{$_[0]};
+}
+
+package main;
+tie my %h => "TieScalar";
+$h{key1} = "val1";
+$h{key2} = "val2";
+print scalar %h, "\n"
+ if %h; # this should also call SCALAR but implicitly
+%h = ();
+print scalar %h, "\n"
+ if !%h; # this should also call SCALAR but implicitly
+EXPECT
+SCALAR
+SCALAR
+2/2
+SCALAR
+SCALAR
+0
+########
+
+# test scalar on tied hash when no SCALAR method has been given
+package TieScalar;
+
+sub TIEHASH {
+ my $pkg = shift;
+ bless { } => $pkg;
+}
+sub STORE {
+ $_[0]->{$_[1]} = $_[2];
+}
+sub FETCH {
+ $_[0]->{$_[1]}
+}
+sub CLEAR {
+ %{ $_[0] } = ();
+}
+sub FIRSTKEY {
+ my $a = keys %{ $_[0] };
+ print "FIRSTKEY\n";
+ each %{ $_[0] };
+}
+
+package main;
+tie my %h => "TieScalar";
+
+if (!%h) {
+ print "empty\n";
+} else {
+ print "not empty\n";
+}
+
+$h{key1} = "val1";
+print "not empty\n" if %h;
+print "not empty\n" if %h;
+print "-->\n";
+my ($k,$v) = each %h;
+print "<--\n";
+print "not empty\n" if %h;
+%h = ();
+print "empty\n" if ! %h;
+EXPECT
+FIRSTKEY
+empty
+FIRSTKEY
+not empty
+FIRSTKEY
+not empty
+-->
+FIRSTKEY
+<--
+not empty
+FIRSTKEY
+empty
+########
+sub TIESCALAR { bless {} }
+sub FETCH { my $x = 3.3; 1 if 0+$x; $x }
+tie $h, "main";
+print $h,"\n";
+EXPECT
+3.3
+########
+sub TIESCALAR { bless {} }
+sub FETCH { shift()->{i} ++ }
+tie $h, "main";
+print $h.$h;
+EXPECT
+01
+########
+# Bug 53482 (and maybe others)
+sub TIESCALAR { my $foo = $_[1]; bless \$foo, $_[0] }
+sub FETCH { ${$_[0]} }
+tie my $x1, "main", 2;
+tie my $y1, "main", 8;
+print $x1 | $y1;
+print $x1 | $y1;
+tie my $x2, "main", "2";
+tie my $y2, "main", "8";
+print $x2 | $y2;
+print $x2 | $y2;
+EXPECT
+1010::
+########
+# Bug 36267
+sub TIEHASH { bless {}, $_[0] }
+sub STORE { $_[0]->{$_[1]} = $_[2] }
+sub FIRSTKEY { my $a = scalar keys %{$_[0]}; each %{$_[0]} }
+sub NEXTKEY { each %{$_[0]} }
+sub DELETE { delete $_[0]->{$_[1]} }
+sub CLEAR { %{$_[0]} = () }
+$h{b}=1;
+delete $h{b};
+print scalar keys %h, "\n";
+tie %h, 'main';
+$i{a}=1;
+%h = %i;
+untie %h;
+print scalar keys %h, "\n";
+EXPECT
+0
+0
+########
+# Bug 37731
+sub foo::TIESCALAR { bless {value => $_[1]}, $_[0] }
+sub foo::FETCH { $_[0]->{value} }
+tie my $VAR, 'foo', '42';
+foreach my $var ($VAR) {
+ print +($var eq $VAR) ? "yes\n" : "no\n";
+}
+EXPECT
+yes
+########
+sub TIEARRAY { bless [], 'main' }
+{
+ local @a;
+ tie @a, 'main';
+}
+print "tied\n" if tied @a;
+EXPECT
+########
+sub TIEHASH { bless [], 'main' }
+{
+ local %h;
+ tie %h, 'main';
+}
+print "tied\n" if tied %h;
+EXPECT
+########
+# RT 20727: PL_defoutgv is left as a tied element
+sub TIESCALAR { return bless {}, 'main' }
+
+sub STORE {
+ select($_[1]);
+ $_[1] = 1;
+ select(); # this used to coredump or assert fail
+}
+tie $SELECT, 'main';
+$SELECT = *STDERR;
+EXPECT
+########
+# RT 23810: eval in die in FETCH can corrupt context stack
+
+my $file = 'rt23810.pm';
+
+my $e;
+my $s;
+
+sub do_require {
+ my ($str, $eval) = @_;
+ open my $fh, '>', $file or die "Can't create $file: $!\n";
+ print $fh $str;
+ close $fh;
+ if ($eval) {
+ $s .= '-ERQ';
+ eval { require $pm; $s .= '-ENDE' }
+ }
+ else {
+ $s .= '-RQ';
+ require $pm;
+ }
+ $s .= '-ENDRQ';
+ unlink $file;
+}
+
+sub TIEHASH { bless {} }
+
+sub FETCH {
+ # 10 or more syntax errors makes yyparse croak()
+ my $bad = q{$x+;$x+;$x+;$x+;$x+;$x+;$x+;$x+;$x+$x+;$x+;$x+;$x+;$x+;;$x+;};
+
+ if ($_[1] eq 'eval') {
+ $s .= 'EVAL';
+ eval q[BEGIN { die; $s .= '-X1' }];
+ $s .= '-BD';
+ eval q[BEGIN { $x+ }];
+ $s .= '-BS';
+ eval '$x+';
+ $s .= '-E1';
+ $s .= '-S1' while $@ =~ /syntax error at/g;
+ eval $bad;
+ $s .= '-E2';
+ $s .= '-S2' while $@ =~ /syntax error at/g;
+ }
+ elsif ($_[1] eq 'require') {
+ $s .= 'REQUIRE';
+ my @text = (
+ q[BEGIN { die; $s .= '-X1' }],
+ q[BEGIN { $x+ }],
+ '$x+',
+ $bad
+ );
+ for my $i (0..$#text) {
+ $s .= "-$i";
+ do_require($txt[$i], 0) if $e;;
+ do_require($txt[$i], 1);
+ }
+ }
+ elsif ($_[1] eq 'exit') {
+ eval q[exit(0); print "overshot eval\n"];
+ }
+ else {
+ print "unknown key: '$_[1]'\n";
+ }
+ return "-R";
+}
+my %foo;
+tie %foo, "main";
+
+for my $action(qw(eval require)) {
+ $s = ''; $e = 0; $s .= main->FETCH($action); print "$action: s0=$s\n";
+ $s = ''; $e = 1; eval { $s .= main->FETCH($action)}; print "$action: s1=$s\n";
+ $s = ''; $e = 0; $s .= $foo{$action}; print "$action: s2=$s\n";
+ $s = ''; $e = 1; eval { $s .= $foo{$action}}; print "$action: s3=$s\n";
+}
+1 while unlink $file;
+
+$foo{'exit'};
+print "overshot main\n"; # shouldn't reach here
+
+EXPECT
+eval: s0=EVAL-BD-BS-E1-S1-E2-S2-S2-S2-S2-S2-S2-S2-S2-S2-S2-R
+eval: s1=EVAL-BD-BS-E1-S1-E2-S2-S2-S2-S2-S2-S2-S2-S2-S2-S2-R
+eval: s2=EVAL-BD-BS-E1-S1-E2-S2-S2-S2-S2-S2-S2-S2-S2-S2-S2-R
+eval: s3=EVAL-BD-BS-E1-S1-E2-S2-S2-S2-S2-S2-S2-S2-S2-S2-S2-R
+require: s0=REQUIRE-0-ERQ-ENDRQ-1-ERQ-ENDRQ-2-ERQ-ENDRQ-3-ERQ-ENDRQ-R
+require: s1=REQUIRE-0-RQ
+require: s2=REQUIRE-0-ERQ-ENDRQ-1-ERQ-ENDRQ-2-ERQ-ENDRQ-3-ERQ-ENDRQ-R
+require: s3=REQUIRE-0-RQ
+########
+# RT 8857: STORE incorrectly invoked for local($_) on aliased tied array
+# element
+
+sub TIEARRAY { bless [], $_[0] }
+sub TIEHASH { bless [], $_[0] }
+sub FETCH { $_[0]->[$_[1]] }
+sub STORE { $_[0]->[$_[1]] = $_[2] }
+
+
+sub f {
+ local $_[0];
+}
+tie @a, 'main';
+tie %h, 'main';
+
+foreach ($a[0], $h{a}) {
+ f($_);
+}
+# on failure, chucks up 'premature free' etc messages
+EXPECT
+########
+# RT 5475:
+# the initial fix for this bug caused tied scalar FETCH to be called
+# multiple times when that scalar was an element in an array. Check it
+# only gets called once now.
+
+sub TIESCALAR { bless [], $_[0] }
+my $c = 0;
+sub FETCH { $c++; 0 }
+sub FETCHSIZE { 1 }
+sub STORE { $c += 100; 0 }
+
+
+my (@a, %h);
+tie $a[0], 'main';
+tie $h{foo}, 'main';
+
+my $i = 0;
+my $x = $a[0] + $h{foo} + $a[$i] + (@a)[0];
+print "x=$x c=$c\n";
+EXPECT
+x=0 c=4
+########
+# Bug 68192 - numeric ops not calling mg_get when tied scalar holds a ref
+sub TIESCALAR { bless {}, __PACKAGE__ };
+sub STORE {};
+sub FETCH {
+ print "fetching... "; # make sure FETCH is called once per op
+ 123456
+};
+my $foo;
+tie $foo, __PACKAGE__;
+my $a = [1234567];
+$foo = $a;
+print "+ ", 0 + $foo, "\n";
+print "** ", $foo**1, "\n";
+print "* ", $foo*1, "\n";
+print "/ ", $foo*1, "\n";
+print "% ", $foo%123457, "\n";
+print "- ", $foo-0, "\n";
+print "neg ", - -$foo, "\n";
+print "int ", int $foo, "\n";
+print "abs ", abs $foo, "\n";
+print "== ", 123456 == $foo, "\n";
+print "< ", 123455 < $foo, "\n";
+print "> ", 123457 > $foo, "\n";
+print "<= ", 123456 <= $foo, "\n";
+print ">= ", 123456 >= $foo, "\n";
+print "!= ", 0 != $foo, "\n";
+print "<=> ", 123457 <=> $foo, "\n";
+EXPECT
+fetching... + 123456
+fetching... ** 123456
+fetching... * 123456
+fetching... / 123456
+fetching... % 123456
+fetching... - 123456
+fetching... neg 123456
+fetching... int 123456
+fetching... abs 123456
+fetching... == 1
+fetching... < 1
+fetching... > 1
+fetching... <= 1
+fetching... >= 1
+fetching... != 1
+fetching... <=> 1
+########
+# Ties returning overloaded objects
+{
+ package overloaded;
+ use overload
+ '*{}' => sub { print '*{}'; \*100 },
+ '@{}' => sub { print '@{}'; \@100 },
+ '%{}' => sub { print '%{}'; \%100 },
+ '${}' => sub { print '${}'; \$100 },
+ map {
+ my $op = $_;
+ $_ => sub { print "$op"; 100 }
+ } qw< 0+ "" + ** * / % - neg int abs == < > <= >= != <=> <> >
+}
+$o = bless [], overloaded;
+
+sub TIESCALAR { bless {}, "" }
+sub FETCH { print "fetching... "; $o }
+sub STORE{}
+tie $ghew, "";
+
+$ghew=undef; 1+$ghew; print "\n";
+$ghew=undef; $ghew**1; print "\n";
+$ghew=undef; $ghew*1; print "\n";
+$ghew=undef; $ghew/1; print "\n";
+$ghew=undef; $ghew%1; print "\n";
+$ghew=undef; $ghew-1; print "\n";
+$ghew=undef; -$ghew; print "\n";
+$ghew=undef; int $ghew; print "\n";
+$ghew=undef; abs $ghew; print "\n";
+$ghew=undef; 1 == $ghew; print "\n";
+$ghew=undef; $ghew<1; print "\n";
+$ghew=undef; $ghew>1; print "\n";
+$ghew=undef; $ghew<=1; print "\n";
+$ghew=undef; $ghew >=1; print "\n";
+$ghew=undef; $ghew != 1; print "\n";
+$ghew=undef; $ghew<=>1; print "\n";
+$ghew=undef; <$ghew>; print "\n";
+$ghew=\*shrext; *$ghew; print "\n";
+$ghew=\@spled; @$ghew; print "\n";
+$ghew=\%frit; %$ghew; print "\n";
+$ghew=\$drile; $$ghew; print "\n";
+EXPECT
+fetching... +
+fetching... **
+fetching... *
+fetching... /
+fetching... %
+fetching... -
+fetching... neg
+fetching... int
+fetching... abs
+fetching... ==
+fetching... <
+fetching... >
+fetching... <=
+fetching... >=
+fetching... !=
+fetching... <=>
+fetching... <>
+fetching... *{}
+fetching... @{}
+fetching... %{}
+fetching... ${}
+########
+# RT 51636: segmentation fault with array ties
+
+tie my @a, 'T';
+@a = (1);
+print "ok\n"; # if we got here we didn't crash
+
+package T;
+
+sub TIEARRAY { bless {} }
+sub STORE { tie my @b, 'T' }
+sub CLEAR { }
+sub EXTEND { }
+
+EXPECT
+ok
+########
+# RT 8438: Tied scalars don't call FETCH when subref is dereferenced
+
+sub TIESCALAR { bless {} }
+
+my $fetch = 0;
+my $called = 0;
+sub FETCH { $fetch++; sub { $called++ } }
+
+tie my $f, 'main';
+$f->(1) for 1,2;
+print "fetch=$fetch\ncalled=$called\n";
+
+EXPECT
+fetch=2
+called=2
+########
+# tie mustn't attempt to call methods on bareword filehandles.
+sub IO::File::TIEARRAY {
+ die "Did not want to invoke IO::File::TIEARRAY";
+}
+fileno FOO; tie @a, "FOO"
+EXPECT
+Can't locate object method "TIEARRAY" via package "FOO" at - line 5.
+########
+#
+# STORE freeing tie'd AV
+sub TIEARRAY { bless [] }
+sub STORE { *a = []; 1 }
+sub STORESIZE { }
+sub EXTEND { }
+tie @a, 'main';
+$a[0] = 1;
+EXPECT
+########
+#
+# CLEAR freeing tie'd AV
+sub TIEARRAY { bless [] }
+sub CLEAR { *a = []; 1 }
+sub STORESIZE { }
+sub EXTEND { }
+sub STORE { }
+tie @a, 'main';
+@a = (1,2,3);
+EXPECT
+########
+#
+# FETCHSIZE freeing tie'd AV
+sub TIEARRAY { bless [] }
+sub FETCHSIZE { *a = []; 100 }
+sub STORESIZE { }
+sub EXTEND { }
+sub STORE { }
+tie @a, 'main';
+print $#a,"\n"
+EXPECT
+99
+########
+#
+# [perl #86328] Crash when freeing tie magic that can increment the refcnt
+
+eval { require Scalar::Util } or print("ok\n"), exit;
+
+sub TIEHASH {
+ return $_[1];
+}
+*TIEARRAY = *TIEHASH;
+
+sub DESTROY {
+ my ($tied) = @_;
+ my $b = $tied->[0];
+}
+
+my $a = {};
+my $o = bless [];
+Scalar::Util::weaken($o->[0] = $a);
+tie %$a, "main", $o;
+
+my $b = [];
+my $p = bless [];
+Scalar::Util::weaken($p->[0] = $b);
+tie @$b, "main", $p;
+
+# Done setting up the evil data structures
+
+$a = undef;
+$b = undef;
+print "ok\n";
+
+EXPECT
+ok
+########
+#
+# Localising a tied COW scalar should not make it read-only.
+
+sub TIESCALAR { bless [] }
+sub FETCH { __PACKAGE__ }
+sub STORE {}
+tie $x, "";
+"$x";
+{
+ local $x;
+ $x = 3;
+}
+print "ok\n";
+EXPECT
+ok
+########
+
+# tied() should still work on tied scalars after glob assignment
+sub TIESCALAR {bless[]}
+sub FETCH {*foo}
+sub f::TIEHANDLE{bless[],f}
+tie *foo, "f";
+tie $rin, "";
+[$rin]; # call FETCH
+print ref tied $rin, "\n";
+print ref tied *$rin, "\n";
+EXPECT
+main
+f
https://perl5.git.perl.org / perl5.git / blobdiff