chdir 't' if -d 't';
@INC = '../lib';
-$ENV{PERL5LIB} = "../lib";
+require './test.pl';
$|=1;
-undef $/;
-@prgs = split /^########\n/m, <DATA>;
-
-require './test.pl';
-plan(tests => scalar @prgs);
-for (@prgs){
- ++$i;
- my($prog,$expected) = split(/\nEXPECT\n/, $_, 2);
- print("not ok $i # bad test format\n"), next
- unless defined $expected;
- my ($testname) = $prog =~ /^# (.*)\n/m;
- $testname ||= '';
- $TODO = $testname =~ s/^TODO //;
- $results =~ s/\n+$//;
- $expected =~ s/\n+$//;
+run_multiple_progs('', \*DATA);
- fresh_perl_is($prog, $expected, {}, $testname);
-}
+done_testing();
__END__
0
########
#
-# FETCH freeing tie'd SV
+# FETCH freeing tie'd SV still works
sub TIESCALAR { bless [] }
-sub FETCH { *a = \1; 1 }
+sub FETCH { *a = \1; 2 }
tie $a, 'main';
print $a;
EXPECT
+2
########
# [20020716.007] - nested FETCHES
# Test case from perlmonks by runrig
# http://www.perlmonks.org/index.pl?node_id=273490
# "Here is what I tried. I think its similar to what you've tried
-# above. Its odd but convienient that after untie'ing you are left with
+# above. Its odd but convenient that after untie'ing you are left with
# a variable that has the same value as was last returned from
# FETCH. (At least on my perl v5.6.1). So you don't need to pass a
# reference to the variable in order to set it after the untie (here it
fileno FOO; tie @a, "FOO"
EXPECT
Can't locate object method "TIEARRAY" via package "FOO" at - line 5.
+########
+#
+# STORE freeing tie'd AV
+sub TIEARRAY { bless [] }
+sub STORE { *a = []; 1 }
+sub STORESIZE { }
+sub EXTEND { }
+tie @a, 'main';
+$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;
+ $x = 3;
+}
+print "ok\n";
+EXPECT
+ok
+########
+#
+# Nor should it be impossible to tie COW scalars that are already PVMGs.
+
+sub TIESCALAR { bless [] }
+$x = *foo; # PVGV
+undef $x; # downgrade to PVMG
+$x = __PACKAGE__; # PVMG + COW
+tie $x, ""; # bang!
+
+print STDERR "ok\n";
+
+# However, one should not be able to tie read-only glob copies, which look
+# a bit like kine internally (FAKE + READONLY).
+$y = *foo;
+Internals::SvREADONLY($y,1);
+tie $y, "";
+
+EXPECT
+ok
+Modification of a read-only value attempted at - line 16.
+########
+
+# Similarly, read-only regexps cannot be tied.
+sub TIESCALAR { bless [] }
+$y = ${qr//};
+Internals::SvREADONLY($y,1);
+tie $y, "";
+
+EXPECT
+Modification of a read-only value attempted at - line 6.
+########
+
+# 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
+########
+
+# (un)tie $glob_copy vs (un)tie *$glob_copy
+sub TIESCALAR { print "TIESCALAR\n"; bless [] }
+sub TIEHANDLE{ print "TIEHANDLE\n"; bless [] }
+sub FETCH { print "never called\n" }
+$f = *foo;
+tie *$f, "";
+tie $f, "";
+untie $f;
+print "ok 1\n" if !tied $f;
+() = $f; # should not call FETCH
+untie *$f;
+print "ok 2\n" if !tied *foo;
+EXPECT
+TIEHANDLE
+TIESCALAR
+ok 1
+ok 2
+########
+
+# RT #8611 mustn't goto outside the magic stack
+sub TIESCALAR { warn "tiescalar\n"; bless [] }
+sub FETCH { warn "fetch()\n"; goto FOO; }
+tie $f, "";
+warn "before fetch\n";
+my $a = "$f";
+warn "before FOO\n";
+FOO:
+warn "after FOO\n";
+EXPECT
+tiescalar
+before fetch
+fetch()
+Can't find label FOO at - line 4.
+########
+
+# RT #8611 mustn't goto outside the magic stack
+sub TIEHANDLE { warn "tiehandle\n"; bless [] }
+sub PRINT { warn "print()\n"; goto FOO; }
+tie *F, "";
+warn "before print\n";
+print F "abc";
+warn "before FOO\n";
+FOO:
+warn "after FOO\n";
+EXPECT
+tiehandle
+before print
+print()
+Can't find label FOO at - line 4.
+########
+
+# \&$tied with $tied holding a reference before the fetch (but not after)
+sub ::72 { 73 };
+sub TIESCALAR {bless[]}
+sub STORE{}
+sub FETCH { 72 }
+tie my $x, "main";
+$x = \$y;
+\&$x;
+print "ok\n";
+EXPECT
+ok
+########
+
+# \&$tied with $tied holding a PVLV glob before the fetch (but not after)
+sub ::72 { 73 };
+sub TIEARRAY {bless[]}
+sub STORE{}
+sub FETCH { 72 }
+tie my @x, "main";
+my $elem = \$x[0];
+$$elem = *bar;
+print &{\&$$elem}, "\n";
+EXPECT
+73
+########
+
+# \&$tied with $tied holding a PVGV glob before the fetch (but not after)
+local *72 = sub { 73 };
+sub TIESCALAR {bless[]}
+sub STORE{}
+sub FETCH { 72 }
+tie my $x, "main";
+$x = *bar;
+print &{\&$x}, "\n";
+EXPECT
+73
+########
+
+# Lexicals should not be visible to magic methods on scope exit
+BEGIN { unless (defined &DynaLoader::boot_DynaLoader) {
+ print "HASH\nHASH\nARRAY\nARRAY\n"; exit;
+}}
+use Scalar::Util 'weaken';
+{ package xoufghd;
+ sub TIEHASH { Scalar::Util::weaken($_[1]); bless \$_[1], xoufghd:: }
+ *TIEARRAY = *TIEHASH;
+ DESTROY {
+ bless ${$_[0]} || return, 0;
+} }
+for my $sub (
+ # hashes: ties before backrefs
+ sub {
+ my %hash;
+ $ref = ref \%hash;
+ tie %hash, xoufghd::, \%hash;
+ 1;
+ },
+ # hashes: backrefs before ties
+ sub {
+ my %hash;
+ $ref = ref \%hash;
+ weaken(my $x = \%hash);
+ tie %hash, xoufghd::, \%hash;
+ 1;
+ },
+ # arrays: ties before backrefs
+ sub {
+ my @array;
+ $ref = ref \@array;
+ tie @array, xoufghd::, \@array;
+ 1;
+ },
+ # arrays: backrefs before ties
+ sub {
+ my @array;
+ $ref = ref \@array;
+ weaken(my $x = \@array);
+ tie @array, xoufghd::, \@array;
+ 1;
+ },
+) {
+ &$sub;
+ &$sub;
+ print $ref, "\n";
+}
+EXPECT
+HASH
+HASH
+ARRAY
+ARRAY
+########
+
+# Localising a tied variable with a typeglob in it should copy magic
+sub TIESCALAR{bless[]}
+sub FETCH{warn "fetching\n"; *foo}
+sub STORE{}
+tie $x, "";
+local $x;
+warn "before";
+"$x";
+warn "after";
+EXPECT
+fetching
+before at - line 8.
+fetching
+after at - line 10.
+########
+
+# tied returns same value as tie
+sub TIESCALAR{bless[]}
+$tyre = \tie $tied, "";
+print "ok\n" if \tied $tied == $tyre;
+EXPECT
+ok
+########
+
+# tied arrays should always be AvREAL
+$^W=1;
+sub TIEARRAY{bless[]}
+sub {
+ tie @_, "";
+ \@_; # used to produce: av_reify called on tied array at - line 7.
+}->(1);
+EXPECT
+########
+
+# [perl #67490] scalar-tying elements of magic hashes
+sub TIESCALAR{bless[]}
+sub STORE{}
+tie $ENV{foo}, '';
+$ENV{foo} = 78;
+delete $ENV{foo};
+tie $^H{foo}, '';
+$^H{foo} = 78;
+delete $^H{foo};
+EXPECT
+########
+
+# [perl #35865, #43011] autovivification should call FETCH after STORE
+# because perl does not know that the FETCH would have returned the same
+# thing that was just stored.
+
+# This package never likes to take ownership of other people’s refs. It
+# always makes its own copies. (For simplicity, it only accepts hashes.)
+package copier {
+ sub TIEHASH { bless {} }
+ sub FETCH { $_[0]{$_[1]} }
+ sub STORE { $_[0]{$_[1]} = { %{ $_[2] } } }
+}
+tie my %h, copier::;
+$h{i}{j} = 'k';
+print $h{i}{j}, "\n";
+EXPECT
+k
+########
+
+# [perl #8931] FETCH for tied $" called an odd number of times.
+use strict;
+my $i = 0;
+sub A::TIESCALAR {bless [] => 'A'}
+sub A::FETCH {print ++ $i, "\n"}
+my @a = ("", "", "");
+
+tie $" => 'A';
+"@a";
+
+$i = 0;
+tie my $a => 'A';
+join $a, 1..10;
+EXPECT
+1
+1
+########
+
+# [perl #9391] return value from 'tied' not discarded soon enough
+use warnings;
+tie @a, 'T';
+if (tied @a) {
+untie @a;
+}
+
+sub T::TIEARRAY { my $s; bless \$s => "T" }
+EXPECT
+
https://perl5.git.perl.org / perl5.git / blobdiff