X-Git-Url: http://git.vpit.fr/?a=blobdiff_plain;f=t%2F21-array.t;h=bf843d6e3f02b645bafa2b7c13b429b99354d8ad;hb=4ccff394a949fe8d99359c5ea6d154f85191f731;hp=dae28a42d16f04dcd3d609a49e43439b76611b39;hpb=ddbfd527f4c54458985145aae3a837a8f5868551;p=perl%2Fmodules%2Fautovivification.git

diff --git a/t/21-array.t b/t/21-array.t
index dae28a4..bf843d6 100644
--- a/t/21-array.t
+++ b/t/21-array.t
@@ -3,382 +3,334 @@
 use strict;
 use warnings;
 
-use Test::More tests => 6 * 3 * 260;
-
-sub testcase {
- my ($var, $init, $code, $exp, $use, $global) = @_;
- my $decl = $global ? "our $var; local $var;" : "my $var;";
- my $test = $var =~ /^[@%]/ ? "\\$var" : $var;
- return <<TESTCASE;
-my \@exp = ($exp);
-$decl
-$init
-my \$res = eval {
- local \$SIG{__WARN__} = sub { die join '', 'warn:', \@_ };
- $use
- $code
-};
-if (ref \$exp[0]) {
- like \$@, \$exp[0], \$desc . ' [exception]';
-} else {
- is   \$@, \$exp[0], \$desc . ' [exception]';
-}
-is_deeply \$res, \$exp[1], \$desc . ' [return]';
-is_deeply $test, \$exp[2], \$desc . ' [variable]';
-TESTCASE
-}
+use Test::More tests => 6 * 3 * 270;
+
+use lib 't/lib';
+use autovivification::TestCases;
 
 while (<DATA>) {
  1 while chomp;
  next unless /#/;
- my @chunks = split /#+/, "$_ ";
- s/^\s+//, s/\s+$// for @chunks;
- my ($init, $code, $exp, $opts) = @chunks;
- (my $var = $init) =~ s/[^\$@%\w].*//;
- $init = $var eq $init ? '' : "$init;";
- my $use;
- if ($opts) {
-  for (split ' ', $opts) {
-   my $no = 1;
-   $no = 0 if s/^([-+])// and $1 eq '-';
-   $use .= ($no ? 'no' : 'use') . " autovivification '$_';"
-  }
- } elsif (defined $opts) {
-  $opts = 'empty';
-  $use  = 'no autovivification;';
- } else {
-  $opts = 'default';
-  $use  = '';
- }
- my @testcases = (
-  [ $var, $init,               $code, $exp, $use, 0 ],
-  [ $var, "use strict; $init", $code, $exp, $use, 1 ],
-  [ $var, "no strict;  $init", $code, $exp, $use, 1 ],
- );
- my @extra;
- for (@testcases) {
-  my $var = $_->[0];
-  if ($var =~ /\$/) {
-   my @new = @$_;
-   $new[0] =~ s/^$/@/;
-   $new[1] =~ s/$var\->/$var/g;
-   $new[2] =~ s/$var\->/$var/g;
-   push @extra, \@new;
-  }
- }
- push @testcases, @extra;
- for (@testcases) {
-  my $testcase = testcase(@$_);
-  my ($var, $init, $code) = @$_;
-  my $desc = do { (my $x = "$var | $init") =~ s,;\s+$,,; $x } . " | $code | $opts";
-  eval $testcase;
-  diag "== This testcase failed to compile ==\n$testcase\n## Reason: $@" if $@;
- }
+ testcase_ok($_, '@');
 }
 
 __DATA__
- 
---- fetch --- 
- 
-$x # $x->[0] # '', undef, [ ] 
-$x # $x->[0] # '', undef, undef # 
-$x # $x->[0] # '', undef, undef # +fetch 
-$x # $x->[0] # '', undef, [ ] # +exists 
-$x # $x->[0] # '', undef, [ ] # +delete 
-$x # $x->[0] # '', undef, [ ] # +store 
- 
-$x # $x->[0] # qr/^Reference vivification forbidden/, undef, undef # +strict +fetch 
-$x # $x->[0] # '', undef, [ ] # +strict +exists 
-$x # $x->[0] # '', undef, [ ] # +strict +delete 
-$x # $x->[0] # '', undef, [ ] # +strict +store 
- 
-$x # $x->[0]->[1] # '', undef, [ [ ] ] 
-$x # $x->[0]->[1] # '', undef, undef # 
-$x # $x->[0]->[1] # '', undef, undef # +fetch 
-$x # $x->[0]->[1] # '', undef, [ [ ] ] # +exists 
-$x # $x->[0]->[1] # '', undef, [ [ ] ] # +delete 
-$x # $x->[0]->[1] # '', undef, [ [ ] ] # +store 
- 
-$x # $x->[0]->[1] # qr/^Reference vivification forbidden/, undef, undef # +strict +fetch 
-$x # $x->[0]->[1] # '', undef, [ [ ] ] # +strict +exists 
-$x # $x->[0]->[1] # '', undef, [ [ ] ] # +strict +delete 
-$x # $x->[0]->[1] # '', undef, [ [ ] ] # +strict +store 
- 
-$x->[0] = 1 # $x->[0] # '', 1, [ 1 ] # +fetch 
-$x->[0] = 1 # $x->[1] # '', undef, [ 1 ] # +fetch 
-$x->[0] = 1 # $x->[0] # '', 1, [ 1 ] # +exists 
-$x->[0] = 1 # $x->[1] # '', undef, [ 1 ] # +exists 
-$x->[0] = 1 # $x->[0] # '', 1, [ 1 ] # +delete 
-$x->[0] = 1 # $x->[1] # '', undef, [ 1 ] # +delete 
-$x->[0] = 1 # $x->[0] # '', 1, [ 1 ] # +store 
-$x->[0] = 1 # $x->[1] # '', undef, [ 1 ] # +store 
- 
-$x->[0] = 1 # $x->[0] # '', 1, [ 1 ] # +strict +fetch 
-$x->[0] = 1 # $x->[1] # '', undef, [ 1 ] # +strict +fetch 
-$x->[0] = 1 # $x->[0] # '', 1, [ 1 ] # +strict +exists 
-$x->[0] = 1 # $x->[1] # '', undef, [ 1 ] # +strict +exists 
-$x->[0] = 1 # $x->[0] # '', 1, [ 1 ] # +strict +delete 
-$x->[0] = 1 # $x->[1] # '', undef, [ 1 ] # +strict +delete 
-$x->[0] = 1 # $x->[0] # '', 1, [ 1 ] # +strict +store 
-$x->[0] = 1 # $x->[1] # '', undef, [ 1 ] # +strict +store 
- 
-$x->[0]->[1] = 1 # $x->[0]->[1] # '', 1, [ [ undef, 1 ] ] # +fetch 
-$x->[0]->[1] = 1 # $x->[0]->[3] # '', undef, [ [ undef, 1 ] ] # +fetch 
-$x->[0]->[1] = 1 # $x->[2]->[3] # '', undef, [ [ undef, 1 ] ] # +fetch 
-$x->[0]->[1] = 1 # $x->[0]->[1] # '', 1, [ [ undef, 1 ] ] # +exists 
-$x->[0]->[1] = 1 # $x->[0]->[3] # '', undef, [ [ undef, 1 ] ] # +exists 
-$x->[0]->[1] = 1 # $x->[2]->[3] # '', undef, [ [ undef, 1 ], undef, [ ] ] # +exists 
-$x->[0]->[1] = 1 # $x->[0]->[1] # '', 1, [ [ undef, 1 ] ] # +delete 
-$x->[0]->[1] = 1 # $x->[0]->[3] # '', undef, [ [ undef, 1 ] ] # +delete 
-$x->[0]->[1] = 1 # $x->[2]->[3] # '', undef, [ [ undef, 1 ], undef, [ ] ] # +delete 
-$x->[0]->[1] = 1 # $x->[0]->[1] # '', 1, [ [ undef, 1 ] ] # +store 
-$x->[0]->[1] = 1 # $x->[0]->[3] # '', undef, [ [ undef, 1 ] ] # +store 
-$x->[0]->[1] = 1 # $x->[2]->[3] # '', undef, [ [ undef, 1 ], undef, [ ] ] # +store 
- 
-$x->[0]->[1] = 1 # $x->[0]->[1] # '', 1, [ [ undef, 1 ] ] # +strict +fetch 
-$x->[0]->[1] = 1 # $x->[0]->[3] # '', undef, [ [ undef, 1 ] ] # +strict +fetch 
-$x->[0]->[1] = 1 # $x->[2]->[3] # qr/^Reference vivification forbidden/, undef, [ [ undef, 1 ] ] # +strict +fetch 
-$x->[0]->[1] = 1 # $x->[0]->[1] # '', 1, [ [ undef, 1 ] ] # +strict +exists 
-$x->[0]->[1] = 1 # $x->[0]->[3] # '', undef, [ [ undef, 1 ] ] # +strict +exists 
-$x->[0]->[1] = 1 # $x->[2]->[3] # '', undef, [ [ undef, 1 ], undef, [ ] ] # +strict +exists 
-$x->[0]->[1] = 1 # $x->[0]->[1] # '', 1, [ [ undef, 1 ] ] # +strict +delete 
-$x->[0]->[1] = 1 # $x->[0]->[3] # '', undef, [ [ undef, 1 ] ] # +strict +delete 
-$x->[0]->[1] = 1 # $x->[2]->[3] # '', undef, [ [ undef, 1 ], undef, [ ] ] # +strict +delete 
-$x->[0]->[1] = 1 # $x->[0]->[1] # '', 1, [ [ undef, 1 ] ] # +strict +store 
-$x->[0]->[1] = 1 # $x->[0]->[3] # '', undef, [ [ undef, 1 ] ] # +strict +store 
-$x->[0]->[1] = 1 # $x->[2]->[3] # '', undef, [ [ undef, 1 ], undef, [ ] ] # +strict +store 
- 
---- aliasing --- 
- 
-$x # 1 for $x->[0]; () # '', undef, [ undef ] 
-$x # 1 for $x->[0]; () # '', undef, undef # 
-$x # 1 for $x->[0]; () # '', undef, undef # +fetch 
-$x # 1 for $x->[0]; () # '', undef, [ undef ] # +exists 
-$x # 1 for $x->[0]; () # '', undef, [ undef ] # +delete 
-$x # 1 for $x->[0]; () # '', undef, [ undef ] # +store 
- 
-$x # $_ = 1 for $x->[0]; () # '', undef, [ 1 ] 
-$x # $_ = 1 for $x->[0]; () # '', undef, undef # 
-$x # $_ = 1 for $x->[0]; () # '', undef, undef # +fetch 
-$x # $_ = 1 for $x->[0]; () # '', undef, [ 1 ] # +exists 
-$x # $_ = 1 for $x->[0]; () # '', undef, [ 1 ] # +delete 
-$x # $_ = 1 for $x->[0]; () # '', undef, [ 1 ] # +store 
- 
-$x->[0] = 1 # 1 for $x->[0]; () # '', undef, [ 1 ] # +fetch 
-$x->[0] = 1 # 1 for $x->[1]; () # '', undef, [ 1, undef ] # +fetch 
-$x->[0] = 1 # 1 for $x->[0]; () # '', undef, [ 1 ] # +exists 
-$x->[0] = 1 # 1 for $x->[1]; () # '', undef, [ 1, undef ] # +exists 
-$x->[0] = 1 # 1 for $x->[0]; () # '', undef, [ 1 ] # +delete 
-$x->[0] = 1 # 1 for $x->[1]; () # '', undef, [ 1, undef ] # +delete 
-$x->[0] = 1 # 1 for $x->[0]; () # '', undef, [ 1 ] # +store 
-$x->[0] = 1 # 1 for $x->[1]; () # '', undef, [ 1, undef ] # +store 
- 
---- exists --- 
- 
-$x # exists $x->[0] # '', '', [ ] 
-$x # exists $x->[0] # '', '', undef # 
-$x # exists $x->[0] # '', '', [ ] # +fetch 
-$x # exists $x->[0] # '', '', undef # +exists 
-$x # exists $x->[0] # '', '', [ ] # +delete 
-$x # exists $x->[0] # '', '', [ ] # +store 
- 
-$x # exists $x->[0] # '', '', [ ] # +strict +fetch 
-$x # exists $x->[0] # qr/^Reference vivification forbidden/, undef, undef # +strict +exists 
-$x # exists $x->[0] # '', '', [ ] # +strict +delete 
-$x # exists $x->[0] # '', '', [ ] # +strict +store 
- 
-$x # exists $x->[0]->[1] # '', '', [ [ ] ] 
-$x # exists $x->[0]->[1] # '', '', undef # 
-$x # exists $x->[0]->[1] # '', '', [ [ ] ] # +fetch 
-$x # exists $x->[0]->[1] # '', '', undef # +exists 
-$x # exists $x->[0]->[1] # '', '', [ [ ] ] # +delete 
-$x # exists $x->[0]->[1] # '', '', [ [ ] ] # +store 
- 
-$x # exists $x->[0]->[1] # '', '', [ [ ] ] # +strict +fetch 
-$x # exists $x->[0]->[1] # qr/^Reference vivification forbidden/, undef, undef # +strict +exists 
-$x # exists $x->[0]->[1] # '', '', [ [ ] ] # +strict +delete 
-$x # exists $x->[0]->[1] # '', '', [ [ ] ] # +strict +store 
- 
-$x->[0] = 1 # exists $x->[0] # '', 1, [ 1 ] # +fetch 
-$x->[0] = 1 # exists $x->[1] # '', '', [ 1 ] # +fetch 
-$x->[0] = 1 # exists $x->[0] # '', 1, [ 1 ] # +exists 
-$x->[0] = 1 # exists $x->[1] # '', '', [ 1 ] # +exists 
-$x->[0] = 1 # exists $x->[0] # '', 1, [ 1 ] # +delete 
-$x->[0] = 1 # exists $x->[1] # '', '', [ 1 ] # +delete 
-$x->[0] = 1 # exists $x->[0] # '', 1, [ 1 ] # +store 
-$x->[0] = 1 # exists $x->[1] # '', '', [ 1 ] # +store 
- 
-$x->[0] = 1 # exists $x->[0] # '', 1, [ 1 ] # +strict +fetch 
-$x->[0] = 1 # exists $x->[1] # '', '', [ 1 ] # +strict +fetch 
-$x->[0] = 1 # exists $x->[0] # '', 1, [ 1 ] # +strict +exists 
-$x->[0] = 1 # exists $x->[1] # '', '', [ 1 ] # +strict +exists 
-$x->[0] = 1 # exists $x->[0] # '', 1, [ 1 ] # +strict +delete 
-$x->[0] = 1 # exists $x->[1] # '', '', [ 1 ] # +strict +delete 
-$x->[0] = 1 # exists $x->[0] # '', 1, [ 1 ] # +strict +store 
-$x->[0] = 1 # exists $x->[1] # '', '', [ 1 ] # +strict +store 
- 
-$x->[0]->[1] = 1 # exists $x->[0]->[1] # '', 1, [ [ undef, 1 ] ] # +fetch 
-$x->[0]->[1] = 1 # exists $x->[0]->[3] # '', '', [ [ undef, 1 ] ] # +fetch 
-$x->[0]->[1] = 1 # exists $x->[2]->[3] # '', '', [ [ undef, 1 ], undef, [ ] ] # +fetch 
-$x->[0]->[1] = 1 # exists $x->[0]->[1] # '', 1, [ [ undef, 1 ] ] # +exists 
-$x->[0]->[1] = 1 # exists $x->[0]->[3] # '', '', [ [ undef, 1 ] ] # +exists 
-$x->[0]->[1] = 1 # exists $x->[2]->[3] # '', '', [ [ undef, 1 ] ] # +exists 
-$x->[0]->[1] = 1 # exists $x->[0]->[1] # '', 1, [ [ undef, 1 ] ] # +delete 
-$x->[0]->[1] = 1 # exists $x->[0]->[3] # '', '', [ [ undef, 1 ] ] # +delete 
-$x->[0]->[1] = 1 # exists $x->[2]->[3] # '', '', [ [ undef, 1 ], undef, [ ] ] # +delete 
-$x->[0]->[1] = 1 # exists $x->[0]->[1] # '', 1, [ [ undef, 1 ] ] # +store 
-$x->[0]->[1] = 1 # exists $x->[0]->[3] # '', '', [ [ undef, 1 ] ] # +store 
-$x->[0]->[1] = 1 # exists $x->[2]->[3] # '', '', [ [ undef, 1 ], undef, [ ] ] # +store 
- 
-$x->[0]->[1] = 1 # exists $x->[0]->[1] # '', 1, [ [ undef, 1 ] ] # +strict +fetch 
-$x->[0]->[1] = 1 # exists $x->[0]->[3] # '', '', [ [ undef, 1 ] ] # +strict +fetch 
-$x->[0]->[1] = 1 # exists $x->[2]->[3] # '', '', [ [ undef, 1 ], undef, [ ] ] # +strict +fetch 
-$x->[0]->[1] = 1 # exists $x->[0]->[1] # '', 1, [ [ undef, 1 ] ] # +strict +exists 
-$x->[0]->[1] = 1 # exists $x->[0]->[3] # '', '', [ [ undef, 1 ] ] # +strict +exists 
-$x->[0]->[1] = 1 # exists $x->[2]->[3] # qr/^Reference vivification forbidden/, undef, [ [ undef, 1 ] ] # +strict +exists 
-$x->[0]->[1] = 1 # exists $x->[0]->[1] # '', 1, [ [ undef, 1 ] ] # +strict +delete 
-$x->[0]->[1] = 1 # exists $x->[0]->[3] # '', '', [ [ undef, 1 ] ] # +strict +delete 
-$x->[0]->[1] = 1 # exists $x->[2]->[3] # '', '', [ [ undef, 1 ], undef, [ ] ] # +strict +delete 
-$x->[0]->[1] = 1 # exists $x->[0]->[1] # '', 1, [ [ undef, 1 ] ] # +strict +store 
-$x->[0]->[1] = 1 # exists $x->[0]->[3] # '', '', [ [ undef, 1 ] ] # +strict +store 
-$x->[0]->[1] = 1 # exists $x->[2]->[3] # '', '', [ [ undef, 1 ], undef, [ ] ] # +strict +store 
- 
---- delete --- 
- 
-$x # delete $x->[0] # '', undef, [ ] 
-$x # delete $x->[0] # '', undef, undef # 
-$x # delete $x->[0] # '', undef, [ ] # +fetch 
-$x # delete $x->[0] # '', undef, [ ] # +exists 
-$x # delete $x->[0] # '', undef, undef # +delete 
-$x # delete $x->[0] # '', undef, [ ] # +store 
- 
-$x # delete $x->[0] # '', undef, [ ] # +strict +fetch 
-$x # delete $x->[0] # '', undef, [ ] # +strict +exists 
-$x # delete $x->[0] # qr/^Reference vivification forbidden/, undef, undef # +strict +delete 
-$x # delete $x->[0] # '', undef, [ ] # +strict +store 
- 
-$x # delete $x->[0]->[1] # '', undef, [ [ ] ] 
-$x # delete $x->[0]->[1] # '', undef, undef # 
-$x # delete $x->[0]->[1] # '', undef, [ [ ] ] # +fetch 
-$x # delete $x->[0]->[1] # '', undef, [ [ ] ] # +exists 
-$x # delete $x->[0]->[1] # '', undef, undef # +delete 
-$x # delete $x->[0]->[1] # '', undef, [ [ ] ] # +store 
- 
-$x # delete $x->[0]->[1] # '', undef, [ [ ] ] # +strict +fetch 
-$x # delete $x->[0]->[1] # '', undef, [ [ ] ] # +strict +exists 
-$x # delete $x->[0]->[1] # qr/^Reference vivification forbidden/, undef, undef # +strict +delete 
-$x # delete $x->[0]->[1] # '', undef, [ [ ] ] # +strict +store 
- 
-$x->[0] = 1 # delete $x->[0] # '', 1, [ ] # +fetch 
-$x->[0] = 1 # delete $x->[1] # '', undef, [ 1 ] # +fetch 
-$x->[0] = 1 # delete $x->[0] # '', 1, [ ] # +exists 
-$x->[0] = 1 # delete $x->[1] # '', undef, [ 1 ] # +exists 
-$x->[0] = 1 # delete $x->[0] # '', 1, [ ] # +delete 
-$x->[0] = 1 # delete $x->[1] # '', undef, [ 1 ] # +delete 
-$x->[0] = 1 # delete $x->[0] # '', 1, [ ] # +store 
-$x->[0] = 1 # delete $x->[1] # '', undef, [ 1 ] # +store 
- 
-$x->[0] = 1 # delete $x->[0] # '', 1, [ ] # +strict +fetch 
-$x->[0] = 1 # delete $x->[1] # '', undef, [ 1 ] # +strict +fetch 
-$x->[0] = 1 # delete $x->[0] # '', 1, [ ] # +strict +exists 
-$x->[0] = 1 # delete $x->[1] # '', undef, [ 1 ] # +strict +exists 
-$x->[0] = 1 # delete $x->[0] # '', 1, [ ] # +strict +delete 
-$x->[0] = 1 # delete $x->[1] # '', undef, [ 1 ] # +strict +delete 
-$x->[0] = 1 # delete $x->[0] # '', 1, [ ] # +strict +store 
-$x->[0] = 1 # delete $x->[1] # '', undef, [ 1 ] # +strict +store 
- 
-$x->[0]->[1] = 1 # delete $x->[0]->[1] # '', 1, [ [ ] ] # +fetch 
-$x->[0]->[1] = 1 # delete $x->[0]->[3] # '', undef, [ [ undef, 1 ] ]# +fetch 
-$x->[0]->[1] = 1 # delete $x->[2]->[3] # '', undef, [ [ undef, 1 ], undef, [ ] ] # +fetch 
-$x->[0]->[1] = 1 # delete $x->[0]->[1] # '', 1, [ [ ] ] # +exists 
-$x->[0]->[1] = 1 # delete $x->[0]->[3] # '', undef, [ [ undef, 1 ] ]# +exists 
-$x->[0]->[1] = 1 # delete $x->[2]->[3] # '', undef, [ [ undef, 1 ], undef, [ ] ] # +exists 
-$x->[0]->[1] = 1 # delete $x->[0]->[1] # '', 1, [ [ ] ] # +delete 
-$x->[0]->[1] = 1 # delete $x->[0]->[3] # '', undef, [ [ undef, 1 ] ]# +delete 
-$x->[0]->[1] = 1 # delete $x->[2]->[3] # '', undef, [ [ undef, 1 ] ]# +delete 
-$x->[0]->[1] = 1 # delete $x->[0]->[1] # '', 1, [ [ ] ] # +store 
-$x->[0]->[1] = 1 # delete $x->[0]->[3] # '', undef, [ [ undef, 1 ] ]# +store 
-$x->[0]->[1] = 1 # delete $x->[2]->[3] # '', undef, [ [ undef, 1 ], undef, [ ] ] # +store 
- 
-$x->[0]->[1] = 1 # delete $x->[0]->[1] # '', 1, [ [ ] ] # +strict +fetch 
-$x->[0]->[1] = 1 # delete $x->[0]->[3] # '', undef, [ [ undef, 1 ] ] # +strict +fetch 
-$x->[0]->[1] = 1 # delete $x->[2]->[3] # '', undef, [ [ undef, 1 ], undef, [ ] ]# +strict +fetch 
-$x->[0]->[1] = 1 # delete $x->[0]->[1] # '', 1, [ [ ] ] # +strict +exists 
-$x->[0]->[1] = 1 # delete $x->[0]->[3] # '', undef, [ [ undef, 1 ] ] # +strict +exists 
-$x->[0]->[1] = 1 # delete $x->[2]->[3] # '', undef, [ [ undef, 1 ], undef, [ ] ]# +strict +exists 
-$x->[0]->[1] = 1 # delete $x->[0]->[1] # '', 1, [ [ ] ] # +strict +delete 
-$x->[0]->[1] = 1 # delete $x->[0]->[3] # '', undef, [ [ undef, 1 ] ] # +strict +delete 
-$x->[0]->[1] = 1 # delete $x->[2]->[3] # qr/^Reference vivification forbidden/, undef, [ [ undef, 1 ] ] # +strict +delete 
-$x->[0]->[1] = 1 # delete $x->[0]->[1] # '', 1, [ [ ] ] # +strict +store 
-$x->[0]->[1] = 1 # delete $x->[0]->[3] # '', undef, [ [ undef, 1 ] ] # +strict +store 
-$x->[0]->[1] = 1 # delete $x->[2]->[3] # '', undef, [ [ undef, 1 ], undef, [ ] ]# +strict +store 
- 
---- store --- 
- 
-$x # $x->[0] = 1 # '', 1, [ 1 ] 
-$x # $x->[0] = 1 # '', 1, [ 1 ] # 
-$x # $x->[0] = 1 # '', 1, [ 1 ] # +fetch 
-$x # $x->[0] = 1 # '', 1, [ 1 ] # +exists 
-$x # $x->[0] = 1 # '', 1, [ 1 ] # +delete 
-$x # $x->[0] = 1 # qr/^Can't vivify reference/, undef, undef # +store 
- 
-$x # $x->[0] = 1 # '', 1, [ 1 ] # +strict +fetch 
-$x # $x->[0] = 1 # '', 1, [ 1 ] # +strict +exists 
-$x # $x->[0] = 1 # '', 1, [ 1 ] # +strict +delete 
-$x # $x->[0] = 1 # qr/^Reference vivification forbidden/, undef, undef # +strict +store 
- 
-$x # $x->[0]->[1] = 1 # '', 1, [ [ undef, 1 ] ] 
-$x # $x->[0]->[1] = 1 # '', 1, [ [ undef, 1 ] ] # 
-$x # $x->[0]->[1] = 1 # '', 1, [ [ undef, 1 ] ] # +fetch 
-$x # $x->[0]->[1] = 1 # '', 1, [ [ undef, 1 ] ] # +exists 
-$x # $x->[0]->[1] = 1 # '', 1, [ [ undef, 1 ] ] # +delete 
-$x # $x->[0]->[1] = 1 # qr/^Can't vivify reference/, undef, undef # +store 
- 
-$x # $x->[0]->[1] = 1 # '', 1, [ [ undef, 1 ] ] # +strict +fetch 
-$x # $x->[0]->[1] = 1 # '', 1, [ [ undef, 1 ] ] # +strict +exists 
-$x # $x->[0]->[1] = 1 # '', 1, [ [ undef, 1 ] ] # +strict +delete 
-$x # $x->[0]->[1] = 1 # qr/^Reference vivification forbidden/, undef, undef # +strict +store 
- 
-$x->[0] = 1 # $x->[0] = 2 # '', 2, [ 2 ] # +fetch 
-$x->[0] = 1 # $x->[1] = 2 # '', 2, [ 1, 2 ] # +fetch 
-$x->[0] = 1 # $x->[0] = 2 # '', 2, [ 2 ] # +exists 
-$x->[0] = 1 # $x->[1] = 2 # '', 2, [ 1, 2 ] # +exists 
-$x->[0] = 1 # $x->[0] = 2 # '', 2, [ 2 ] # +delete 
-$x->[0] = 1 # $x->[1] = 2 # '', 2, [ 1, 2 ] # +delete 
-$x->[0] = 1 # $x->[0] = 2 # '', 2, [ 2 ] # +store 
-$x->[0] = 1 # $x->[1] = 2 # '', 2, [ 1, 2 ] # +store 
- 
-$x->[0] = 1 # $x->[0] = 2 # '', 2, [ 2 ] # +strict +fetch 
-$x->[0] = 1 # $x->[1] = 2 # '', 2, [ 1, 2 ] # +strict +fetch 
-$x->[0] = 1 # $x->[0] = 2 # '', 2, [ 2 ] # +strict +exists 
-$x->[0] = 1 # $x->[1] = 2 # '', 2, [ 1, 2 ] # +strict +exists 
-$x->[0] = 1 # $x->[0] = 2 # '', 2, [ 2 ] # +strict +delete 
-$x->[0] = 1 # $x->[1] = 2 # '', 2, [ 1, 2 ] # +strict +delete 
-$x->[0] = 1 # $x->[0] = 2 # '', 2, [ 2 ] # +strict +store 
-$x->[0] = 1 # $x->[1] = 2 # '', 2, [ 1, 2 ] # +strict +store 
- 
-$x->[0]->[1] = 1 # $x->[0]->[1] = 2 # '', 2, [ [ undef, 2 ] ] # +fetch 
-$x->[0]->[1] = 1 # $x->[0]->[3] = 2 # '', 2, [ [ undef, 1, undef, 2 ] ] # +fetch 
-$x->[0]->[1] = 1 # $x->[2]->[3] = 2 # '', 2, [ [ undef, 1 ], undef, [ undef, undef, undef, 2 ] ] # +fetch 
-$x->[0]->[1] = 1 # $x->[0]->[1] = 2 # '', 2, [ [ undef, 2 ] ] # +exists 
-$x->[0]->[1] = 1 # $x->[0]->[3] = 2 # '', 2, [ [ undef, 1, undef, 2 ] ] # +exists 
-$x->[0]->[1] = 1 # $x->[2]->[3] = 2 # '', 2, [ [ undef, 1 ], undef, [ undef, undef, undef, 2 ] ] # +exists 
-$x->[0]->[1] = 1 # $x->[0]->[1] = 2 # '', 2, [ [ undef, 2 ] ] # +delete 
-$x->[0]->[1] = 1 # $x->[0]->[3] = 2 # '', 2, [ [ undef, 1, undef, 2 ] ] # +delete 
-$x->[0]->[1] = 1 # $x->[2]->[3] = 2 # '', 2, [ [ undef, 1 ], undef, [ undef, undef, undef, 2 ] ] # +delete 
-$x->[0]->[1] = 1 # $x->[0]->[1] = 2 # '', 2, [ [ undef, 2 ] ] # +store 
-$x->[0]->[1] = 1 # $x->[0]->[3] = 2 # '', 2, [ [ undef, 1, undef, 2 ] ] # +store 
-$x->[0]->[1] = 1 # $x->[2]->[3] = 2 # qr/^Can't vivify reference/, undef, [ [ undef, 1 ] ] # +store 
- 
-$x->[0]->[1] = 1 # $x->[0]->[1] = 2 # '', 2, [ [ undef, 2 ] ] # +strict +fetch 
-$x->[0]->[1] = 1 # $x->[0]->[3] = 2 # '', 2, [ [ undef, 1, undef, 2 ] ] # +strict +fetch 
-$x->[0]->[1] = 1 # $x->[2]->[3] = 2 # '', 2, [ [ undef, 1 ], undef, [ undef, undef, undef, 2 ] ] # +strict +fetch 
-$x->[0]->[1] = 1 # $x->[0]->[1] = 2 # '', 2, [ [ undef, 2 ] ] # +strict +exists 
-$x->[0]->[1] = 1 # $x->[0]->[3] = 2 # '', 2, [ [ undef, 1, undef, 2 ] ] # +strict +exists 
-$x->[0]->[1] = 1 # $x->[2]->[3] = 2 # '', 2, [ [ undef, 1 ], undef, [ undef, undef, undef, 2 ] ] # +strict +exists 
-$x->[0]->[1] = 1 # $x->[0]->[1] = 2 # '', 2, [ [ undef, 2 ] ] # +strict +delete 
-$x->[0]->[1] = 1 # $x->[0]->[3] = 2 # '', 2, [ [ undef, 1, undef, 2 ] ] # +strict +delete 
-$x->[0]->[1] = 1 # $x->[2]->[3] = 2 # '', 2, [ [ undef, 1 ], undef, [ undef, undef, undef, 2 ] ] # +strict +delete 
-$x->[0]->[1] = 1 # $x->[0]->[1] = 2 # '', 2, [ [ undef, 2 ] ] # +strict +store 
-$x->[0]->[1] = 1 # $x->[0]->[3] = 2 # '', 2, [ [ undef, 1, undef, 2 ] ] # +strict +store 
-$x->[0]->[1] = 1 # $x->[2]->[3] = 2 # qr/^Reference vivification forbidden/, undef, [ [ undef, 1 ] ] # +strict +store 
+
+--- fetch ---
+
+$x # $x->[0] # '', undef, [ ]
+$x # $x->[0] # '', undef, undef #
+$x # $x->[0] # '', undef, undef # +fetch
+$x # $x->[0] # '', undef, [ ] # +exists
+$x # $x->[0] # '', undef, [ ] # +delete
+$x # $x->[0] # '', undef, [ ] # +store
+
+$x # $x->[0] # qr/^Reference vivification forbidden/, undef, undef # +strict +fetch
+$x # $x->[0] # '', undef, [ ] # +strict +exists
+$x # $x->[0] # '', undef, [ ] # +strict +delete
+$x # $x->[0] # '', undef, [ ] # +strict +store
+
+$x # $x->[0]->[1] # '', undef, [ [ ] ]
+$x # $x->[0]->[1] # '', undef, undef #
+$x # $x->[0]->[1] # '', undef, undef # +fetch
+$x # $x->[0]->[1] # '', undef, [ [ ] ] # +exists
+$x # $x->[0]->[1] # '', undef, [ [ ] ] # +delete
+$x # $x->[0]->[1] # '', undef, [ [ ] ] # +store
+
+$x # $x->[0]->[1] # qr/^Reference vivification forbidden/, undef, undef # +strict +fetch
+$x # $x->[0]->[1] # '', undef, [ [ ] ] # +strict +exists
+$x # $x->[0]->[1] # '', undef, [ [ ] ] # +strict +delete
+$x # $x->[0]->[1] # '', undef, [ [ ] ] # +strict +store
+
+$x->[0] = 1 # $x->[0] # '', 1, [ 1 ] # +fetch
+$x->[0] = 1 # $x->[1] # '', undef, [ 1 ] # +fetch
+$x->[0] = 1 # $x->[0] # '', 1, [ 1 ] # +exists
+$x->[0] = 1 # $x->[1] # '', undef, [ 1 ] # +exists
+$x->[0] = 1 # $x->[0] # '', 1, [ 1 ] # +delete
+$x->[0] = 1 # $x->[1] # '', undef, [ 1 ] # +delete
+$x->[0] = 1 # $x->[0] # '', 1, [ 1 ] # +store
+$x->[0] = 1 # $x->[1] # '', undef, [ 1 ] # +store
+
+$x->[0] = 1 # $x->[0] # '', 1, [ 1 ] # +strict +fetch
+$x->[0] = 1 # $x->[1] # '', undef, [ 1 ] # +strict +fetch
+$x->[0] = 1 # $x->[0] # '', 1, [ 1 ] # +strict +exists
+$x->[0] = 1 # $x->[1] # '', undef, [ 1 ] # +strict +exists
+$x->[0] = 1 # $x->[0] # '', 1, [ 1 ] # +strict +delete
+$x->[0] = 1 # $x->[1] # '', undef, [ 1 ] # +strict +delete
+$x->[0] = 1 # $x->[0] # '', 1, [ 1 ] # +strict +store
+$x->[0] = 1 # $x->[1] # '', undef, [ 1 ] # +strict +store
+
+$x->[0]->[1] = 1 # $x->[0]->[1] # '', 1, [ [ undef, 1 ] ] # +fetch
+$x->[0]->[1] = 1 # $x->[0]->[3] # '', undef, [ [ undef, 1 ] ] # +fetch
+$x->[0]->[1] = 1 # $x->[2]->[3] # '', undef, [ [ undef, 1 ] ] # +fetch
+$x->[0]->[1] = 1 # $x->[0]->[1] # '', 1, [ [ undef, 1 ] ] # +exists
+$x->[0]->[1] = 1 # $x->[0]->[3] # '', undef, [ [ undef, 1 ] ] # +exists
+$x->[0]->[1] = 1 # $x->[2]->[3] # '', undef, [ [ undef, 1 ], undef, [ ] ] # +exists
+$x->[0]->[1] = 1 # $x->[0]->[1] # '', 1, [ [ undef, 1 ] ] # +delete
+$x->[0]->[1] = 1 # $x->[0]->[3] # '', undef, [ [ undef, 1 ] ] # +delete
+$x->[0]->[1] = 1 # $x->[2]->[3] # '', undef, [ [ undef, 1 ], undef, [ ] ] # +delete
+$x->[0]->[1] = 1 # $x->[0]->[1] # '', 1, [ [ undef, 1 ] ] # +store
+$x->[0]->[1] = 1 # $x->[0]->[3] # '', undef, [ [ undef, 1 ] ] # +store
+$x->[0]->[1] = 1 # $x->[2]->[3] # '', undef, [ [ undef, 1 ], undef, [ ] ] # +store
+
+$x->[0]->[1] = 1 # $x->[0]->[1] # '', 1, [ [ undef, 1 ] ] # +strict +fetch
+$x->[0]->[1] = 1 # $x->[0]->[3] # '', undef, [ [ undef, 1 ] ] # +strict +fetch
+$x->[0]->[1] = 1 # $x->[2]->[3] # qr/^Reference vivification forbidden/, undef, [ [ undef, 1 ] ] # +strict +fetch
+$x->[0]->[1] = 1 # $x->[0]->[1] # '', 1, [ [ undef, 1 ] ] # +strict +exists
+$x->[0]->[1] = 1 # $x->[0]->[3] # '', undef, [ [ undef, 1 ] ] # +strict +exists
+$x->[0]->[1] = 1 # $x->[2]->[3] # '', undef, [ [ undef, 1 ], undef, [ ] ] # +strict +exists
+$x->[0]->[1] = 1 # $x->[0]->[1] # '', 1, [ [ undef, 1 ] ] # +strict +delete
+$x->[0]->[1] = 1 # $x->[0]->[3] # '', undef, [ [ undef, 1 ] ] # +strict +delete
+$x->[0]->[1] = 1 # $x->[2]->[3] # '', undef, [ [ undef, 1 ], undef, [ ] ] # +strict +delete
+$x->[0]->[1] = 1 # $x->[0]->[1] # '', 1, [ [ undef, 1 ] ] # +strict +store
+$x->[0]->[1] = 1 # $x->[0]->[3] # '', undef, [ [ undef, 1 ] ] # +strict +store
+$x->[0]->[1] = 1 # $x->[2]->[3] # '', undef, [ [ undef, 1 ], undef, [ ] ] # +strict +store
+
+--- aliasing ---
+
+$x # 1 for $x->[0]; () # '', undef, [ undef ]
+$x # 1 for $x->[0]; () # '', undef, undef #
+$x # 1 for $x->[0]; () # '', undef, undef # +fetch
+$x # 1 for $x->[0]; () # '', undef, [ undef ] # +exists
+$x # 1 for $x->[0]; () # '', undef, [ undef ] # +delete
+$x # 1 for $x->[0]; () # '', undef, [ undef ] # +store
+
+$x # $_ = 1 for $x->[0]; () # '', undef, [ 1 ]
+$x # $_ = 1 for $x->[0]; () # '', undef, undef #
+$x # $_ = 1 for $x->[0]; () # '', undef, undef # +fetch
+$x # $_ = 1 for $x->[0]; () # '', undef, [ 1 ] # +exists
+$x # $_ = 1 for $x->[0]; () # '', undef, [ 1 ] # +delete
+$x # $_ = 1 for $x->[0]; () # '', undef, [ 1 ] # +store
+
+$x->[0] = 1 # 1 for $x->[0]; () # '', undef, [ 1 ] # +fetch
+$x->[0] = 1 # 1 for $x->[1]; () # '', undef, [ 1, undef ] # +fetch
+$x->[0] = 1 # 1 for $x->[0]; () # '', undef, [ 1 ] # +exists
+$x->[0] = 1 # 1 for $x->[1]; () # '', undef, [ 1, undef ] # +exists
+$x->[0] = 1 # 1 for $x->[0]; () # '', undef, [ 1 ] # +delete
+$x->[0] = 1 # 1 for $x->[1]; () # '', undef, [ 1, undef ] # +delete
+$x->[0] = 1 # 1 for $x->[0]; () # '', undef, [ 1 ] # +store
+$x->[0] = 1 # 1 for $x->[1]; () # '', undef, [ 1, undef ] # +store
+
+--- dereferencing ---
+
+$x # no warnings 'uninitialized'; my @a = @$x; () # ($strict ? qr/Can't use an undefined value as an ARRAY reference/ : ''), undef, undef
+$x # no warnings 'uninitialized'; my @a = @$x; () # ($strict ? qr/Can't use an undefined value as an ARRAY reference/ : ''), undef, undef #
+$x # no warnings 'uninitialized'; my @a = @$x; () # ($strict ? qr/Can't use an undefined value as an ARRAY reference/ : ''), undef, undef # +fetch
+$x # no warnings 'uninitialized'; my @a = @$x; () # ($strict ? qr/Can't use an undefined value as an ARRAY reference/ : ''), undef, undef # +exists
+$x # no warnings 'uninitialized'; my @a = @$x; () # ($strict ? qr/Can't use an undefined value as an ARRAY reference/ : ''), undef, undef # +delete
+$x # no warnings 'uninitialized'; my @a = @$x; () # ($strict ? qr/Can't use an undefined value as an ARRAY reference/ : ''), undef, undef # +store
+
+$x->[0] = 1 # my @a = @$x; () # '', undef, [ 1 ] # +fetch
+$x->[0] = 1 # my @a = @$x; () # '', undef, [ 1 ] # +exists
+$x->[0] = 1 # my @a = @$x; () # '', undef, [ 1 ] # +delete
+$x->[0] = 1 # my @a = @$x; () # '', undef, [ 1 ] # +store
+
+--- exists ---
+
+$x # exists $x->[0] # '', '', [ ]
+$x # exists $x->[0] # '', '', undef #
+$x # exists $x->[0] # '', '', [ ] # +fetch
+$x # exists $x->[0] # '', '', undef # +exists
+$x # exists $x->[0] # '', '', [ ] # +delete
+$x # exists $x->[0] # '', '', [ ] # +store
+
+$x # exists $x->[0] # '', '', [ ] # +strict +fetch
+$x # exists $x->[0] # qr/^Reference vivification forbidden/, undef, undef # +strict +exists
+$x # exists $x->[0] # '', '', [ ] # +strict +delete
+$x # exists $x->[0] # '', '', [ ] # +strict +store
+
+$x # exists $x->[0]->[1] # '', '', [ [ ] ]
+$x # exists $x->[0]->[1] # '', '', undef #
+$x # exists $x->[0]->[1] # '', '', [ [ ] ] # +fetch
+$x # exists $x->[0]->[1] # '', '', undef # +exists
+$x # exists $x->[0]->[1] # '', '', [ [ ] ] # +delete
+$x # exists $x->[0]->[1] # '', '', [ [ ] ] # +store
+
+$x # exists $x->[0]->[1] # '', '', [ [ ] ] # +strict +fetch
+$x # exists $x->[0]->[1] # qr/^Reference vivification forbidden/, undef, undef # +strict +exists
+$x # exists $x->[0]->[1] # '', '', [ [ ] ] # +strict +delete
+$x # exists $x->[0]->[1] # '', '', [ [ ] ] # +strict +store
+
+$x->[0] = 1 # exists $x->[0] # '', 1, [ 1 ] # +fetch
+$x->[0] = 1 # exists $x->[1] # '', '', [ 1 ] # +fetch
+$x->[0] = 1 # exists $x->[0] # '', 1, [ 1 ] # +exists
+$x->[0] = 1 # exists $x->[1] # '', '', [ 1 ] # +exists
+$x->[0] = 1 # exists $x->[0] # '', 1, [ 1 ] # +delete
+$x->[0] = 1 # exists $x->[1] # '', '', [ 1 ] # +delete
+$x->[0] = 1 # exists $x->[0] # '', 1, [ 1 ] # +store
+$x->[0] = 1 # exists $x->[1] # '', '', [ 1 ] # +store
+
+$x->[0] = 1 # exists $x->[0] # '', 1, [ 1 ] # +strict +fetch
+$x->[0] = 1 # exists $x->[1] # '', '', [ 1 ] # +strict +fetch
+$x->[0] = 1 # exists $x->[0] # '', 1, [ 1 ] # +strict +exists
+$x->[0] = 1 # exists $x->[1] # '', '', [ 1 ] # +strict +exists
+$x->[0] = 1 # exists $x->[0] # '', 1, [ 1 ] # +strict +delete
+$x->[0] = 1 # exists $x->[1] # '', '', [ 1 ] # +strict +delete
+$x->[0] = 1 # exists $x->[0] # '', 1, [ 1 ] # +strict +store
+$x->[0] = 1 # exists $x->[1] # '', '', [ 1 ] # +strict +store
+
+$x->[0]->[1] = 1 # exists $x->[0]->[1] # '', 1, [ [ undef, 1 ] ] # +fetch
+$x->[0]->[1] = 1 # exists $x->[0]->[3] # '', '', [ [ undef, 1 ] ] # +fetch
+$x->[0]->[1] = 1 # exists $x->[2]->[3] # '', '', [ [ undef, 1 ], undef, [ ] ] # +fetch
+$x->[0]->[1] = 1 # exists $x->[0]->[1] # '', 1, [ [ undef, 1 ] ] # +exists
+$x->[0]->[1] = 1 # exists $x->[0]->[3] # '', '', [ [ undef, 1 ] ] # +exists
+$x->[0]->[1] = 1 # exists $x->[2]->[3] # '', '', [ [ undef, 1 ] ] # +exists
+$x->[0]->[1] = 1 # exists $x->[0]->[1] # '', 1, [ [ undef, 1 ] ] # +delete
+$x->[0]->[1] = 1 # exists $x->[0]->[3] # '', '', [ [ undef, 1 ] ] # +delete
+$x->[0]->[1] = 1 # exists $x->[2]->[3] # '', '', [ [ undef, 1 ], undef, [ ] ] # +delete
+$x->[0]->[1] = 1 # exists $x->[0]->[1] # '', 1, [ [ undef, 1 ] ] # +store
+$x->[0]->[1] = 1 # exists $x->[0]->[3] # '', '', [ [ undef, 1 ] ] # +store
+$x->[0]->[1] = 1 # exists $x->[2]->[3] # '', '', [ [ undef, 1 ], undef, [ ] ] # +store
+
+$x->[0]->[1] = 1 # exists $x->[0]->[1] # '', 1, [ [ undef, 1 ] ] # +strict +fetch
+$x->[0]->[1] = 1 # exists $x->[0]->[3] # '', '', [ [ undef, 1 ] ] # +strict +fetch
+$x->[0]->[1] = 1 # exists $x->[2]->[3] # '', '', [ [ undef, 1 ], undef, [ ] ] # +strict +fetch
+$x->[0]->[1] = 1 # exists $x->[0]->[1] # '', 1, [ [ undef, 1 ] ] # +strict +exists
+$x->[0]->[1] = 1 # exists $x->[0]->[3] # '', '', [ [ undef, 1 ] ] # +strict +exists
+$x->[0]->[1] = 1 # exists $x->[2]->[3] # qr/^Reference vivification forbidden/, undef, [ [ undef, 1 ] ] # +strict +exists
+$x->[0]->[1] = 1 # exists $x->[0]->[1] # '', 1, [ [ undef, 1 ] ] # +strict +delete
+$x->[0]->[1] = 1 # exists $x->[0]->[3] # '', '', [ [ undef, 1 ] ] # +strict +delete
+$x->[0]->[1] = 1 # exists $x->[2]->[3] # '', '', [ [ undef, 1 ], undef, [ ] ] # +strict +delete
+$x->[0]->[1] = 1 # exists $x->[0]->[1] # '', 1, [ [ undef, 1 ] ] # +strict +store
+$x->[0]->[1] = 1 # exists $x->[0]->[3] # '', '', [ [ undef, 1 ] ] # +strict +store
+$x->[0]->[1] = 1 # exists $x->[2]->[3] # '', '', [ [ undef, 1 ], undef, [ ] ] # +strict +store
+
+--- delete ---
+
+$x # delete $x->[0] # '', undef, [ ]
+$x # delete $x->[0] # '', undef, undef #
+$x # delete $x->[0] # '', undef, [ ] # +fetch
+$x # delete $x->[0] # '', undef, [ ] # +exists
+$x # delete $x->[0] # '', undef, undef # +delete
+$x # delete $x->[0] # '', undef, [ ] # +store
+
+$x # delete $x->[0] # '', undef, [ ] # +strict +fetch
+$x # delete $x->[0] # '', undef, [ ] # +strict +exists
+$x # delete $x->[0] # qr/^Reference vivification forbidden/, undef, undef # +strict +delete
+$x # delete $x->[0] # '', undef, [ ] # +strict +store
+
+$x # delete $x->[0]->[1] # '', undef, [ [ ] ]
+$x # delete $x->[0]->[1] # '', undef, undef #
+$x # delete $x->[0]->[1] # '', undef, [ [ ] ] # +fetch
+$x # delete $x->[0]->[1] # '', undef, [ [ ] ] # +exists
+$x # delete $x->[0]->[1] # '', undef, undef # +delete
+$x # delete $x->[0]->[1] # '', undef, [ [ ] ] # +store
+
+$x # delete $x->[0]->[1] # '', undef, [ [ ] ] # +strict +fetch
+$x # delete $x->[0]->[1] # '', undef, [ [ ] ] # +strict +exists
+$x # delete $x->[0]->[1] # qr/^Reference vivification forbidden/, undef, undef # +strict +delete
+$x # delete $x->[0]->[1] # '', undef, [ [ ] ] # +strict +store
+
+$x->[0] = 1 # delete $x->[0] # '', 1, [ ] # +fetch
+$x->[0] = 1 # delete $x->[1] # '', undef, [ 1 ] # +fetch
+$x->[0] = 1 # delete $x->[0] # '', 1, [ ] # +exists
+$x->[0] = 1 # delete $x->[1] # '', undef, [ 1 ] # +exists
+$x->[0] = 1 # delete $x->[0] # '', 1, [ ] # +delete
+$x->[0] = 1 # delete $x->[1] # '', undef, [ 1 ] # +delete
+$x->[0] = 1 # delete $x->[0] # '', 1, [ ] # +store
+$x->[0] = 1 # delete $x->[1] # '', undef, [ 1 ] # +store
+
+$x->[0] = 1 # delete $x->[0] # '', 1, [ ] # +strict +fetch
+$x->[0] = 1 # delete $x->[1] # '', undef, [ 1 ] # +strict +fetch
+$x->[0] = 1 # delete $x->[0] # '', 1, [ ] # +strict +exists
+$x->[0] = 1 # delete $x->[1] # '', undef, [ 1 ] # +strict +exists
+$x->[0] = 1 # delete $x->[0] # '', 1, [ ] # +strict +delete
+$x->[0] = 1 # delete $x->[1] # '', undef, [ 1 ] # +strict +delete
+$x->[0] = 1 # delete $x->[0] # '', 1, [ ] # +strict +store
+$x->[0] = 1 # delete $x->[1] # '', undef, [ 1 ] # +strict +store
+
+$x->[0]->[1] = 1 # delete $x->[0]->[1] # '', 1, [ [ ] ] # +fetch
+$x->[0]->[1] = 1 # delete $x->[0]->[3] # '', undef, [ [ undef, 1 ] ]# +fetch
+$x->[0]->[1] = 1 # delete $x->[2]->[3] # '', undef, [ [ undef, 1 ], undef, [ ] ] # +fetch
+$x->[0]->[1] = 1 # delete $x->[0]->[1] # '', 1, [ [ ] ] # +exists
+$x->[0]->[1] = 1 # delete $x->[0]->[3] # '', undef, [ [ undef, 1 ] ]# +exists
+$x->[0]->[1] = 1 # delete $x->[2]->[3] # '', undef, [ [ undef, 1 ], undef, [ ] ] # +exists
+$x->[0]->[1] = 1 # delete $x->[0]->[1] # '', 1, [ [ ] ] # +delete
+$x->[0]->[1] = 1 # delete $x->[0]->[3] # '', undef, [ [ undef, 1 ] ]# +delete
+$x->[0]->[1] = 1 # delete $x->[2]->[3] # '', undef, [ [ undef, 1 ] ]# +delete
+$x->[0]->[1] = 1 # delete $x->[0]->[1] # '', 1, [ [ ] ] # +store
+$x->[0]->[1] = 1 # delete $x->[0]->[3] # '', undef, [ [ undef, 1 ] ]# +store
+$x->[0]->[1] = 1 # delete $x->[2]->[3] # '', undef, [ [ undef, 1 ], undef, [ ] ] # +store
+
+$x->[0]->[1] = 1 # delete $x->[0]->[1] # '', 1, [ [ ] ] # +strict +fetch
+$x->[0]->[1] = 1 # delete $x->[0]->[3] # '', undef, [ [ undef, 1 ] ] # +strict +fetch
+$x->[0]->[1] = 1 # delete $x->[2]->[3] # '', undef, [ [ undef, 1 ], undef, [ ] ]# +strict +fetch
+$x->[0]->[1] = 1 # delete $x->[0]->[1] # '', 1, [ [ ] ] # +strict +exists
+$x->[0]->[1] = 1 # delete $x->[0]->[3] # '', undef, [ [ undef, 1 ] ] # +strict +exists
+$x->[0]->[1] = 1 # delete $x->[2]->[3] # '', undef, [ [ undef, 1 ], undef, [ ] ]# +strict +exists
+$x->[0]->[1] = 1 # delete $x->[0]->[1] # '', 1, [ [ ] ] # +strict +delete
+$x->[0]->[1] = 1 # delete $x->[0]->[3] # '', undef, [ [ undef, 1 ] ] # +strict +delete
+$x->[0]->[1] = 1 # delete $x->[2]->[3] # qr/^Reference vivification forbidden/, undef, [ [ undef, 1 ] ] # +strict +delete
+$x->[0]->[1] = 1 # delete $x->[0]->[1] # '', 1, [ [ ] ] # +strict +store
+$x->[0]->[1] = 1 # delete $x->[0]->[3] # '', undef, [ [ undef, 1 ] ] # +strict +store
+$x->[0]->[1] = 1 # delete $x->[2]->[3] # '', undef, [ [ undef, 1 ], undef, [ ] ]# +strict +store
+
+--- store ---
+
+$x # $x->[0] = 1 # '', 1, [ 1 ]
+$x # $x->[0] = 1 # '', 1, [ 1 ] #
+$x # $x->[0] = 1 # '', 1, [ 1 ] # +fetch
+$x # $x->[0] = 1 # '', 1, [ 1 ] # +exists
+$x # $x->[0] = 1 # '', 1, [ 1 ] # +delete
+$x # $x->[0] = 1 # qr/^Can't vivify reference/, undef, undef # +store
+
+$x # $x->[0] = 1 # '', 1, [ 1 ] # +strict +fetch
+$x # $x->[0] = 1 # '', 1, [ 1 ] # +strict +exists
+$x # $x->[0] = 1 # '', 1, [ 1 ] # +strict +delete
+$x # $x->[0] = 1 # qr/^Reference vivification forbidden/, undef, undef # +strict +store
+
+$x # $x->[0]->[1] = 1 # '', 1, [ [ undef, 1 ] ]
+$x # $x->[0]->[1] = 1 # '', 1, [ [ undef, 1 ] ] #
+$x # $x->[0]->[1] = 1 # '', 1, [ [ undef, 1 ] ] # +fetch
+$x # $x->[0]->[1] = 1 # '', 1, [ [ undef, 1 ] ] # +exists
+$x # $x->[0]->[1] = 1 # '', 1, [ [ undef, 1 ] ] # +delete
+$x # $x->[0]->[1] = 1 # qr/^Can't vivify reference/, undef, undef # +store
+
+$x # $x->[0]->[1] = 1 # '', 1, [ [ undef, 1 ] ] # +strict +fetch
+$x # $x->[0]->[1] = 1 # '', 1, [ [ undef, 1 ] ] # +strict +exists
+$x # $x->[0]->[1] = 1 # '', 1, [ [ undef, 1 ] ] # +strict +delete
+$x # $x->[0]->[1] = 1 # qr/^Reference vivification forbidden/, undef, undef # +strict +store
+
+$x->[0] = 1 # $x->[0] = 2 # '', 2, [ 2 ] # +fetch
+$x->[0] = 1 # $x->[1] = 2 # '', 2, [ 1, 2 ] # +fetch
+$x->[0] = 1 # $x->[0] = 2 # '', 2, [ 2 ] # +exists
+$x->[0] = 1 # $x->[1] = 2 # '', 2, [ 1, 2 ] # +exists
+$x->[0] = 1 # $x->[0] = 2 # '', 2, [ 2 ] # +delete
+$x->[0] = 1 # $x->[1] = 2 # '', 2, [ 1, 2 ] # +delete
+$x->[0] = 1 # $x->[0] = 2 # '', 2, [ 2 ] # +store
+$x->[0] = 1 # $x->[1] = 2 # '', 2, [ 1, 2 ] # +store
+
+$x->[0] = 1 # $x->[0] = 2 # '', 2, [ 2 ] # +strict +fetch
+$x->[0] = 1 # $x->[1] = 2 # '', 2, [ 1, 2 ] # +strict +fetch
+$x->[0] = 1 # $x->[0] = 2 # '', 2, [ 2 ] # +strict +exists
+$x->[0] = 1 # $x->[1] = 2 # '', 2, [ 1, 2 ] # +strict +exists
+$x->[0] = 1 # $x->[0] = 2 # '', 2, [ 2 ] # +strict +delete
+$x->[0] = 1 # $x->[1] = 2 # '', 2, [ 1, 2 ] # +strict +delete
+$x->[0] = 1 # $x->[0] = 2 # '', 2, [ 2 ] # +strict +store
+$x->[0] = 1 # $x->[1] = 2 # '', 2, [ 1, 2 ] # +strict +store
+
+$x->[0]->[1] = 1 # $x->[0]->[1] = 2 # '', 2, [ [ undef, 2 ] ] # +fetch
+$x->[0]->[1] = 1 # $x->[0]->[3] = 2 # '', 2, [ [ undef, 1, undef, 2 ] ] # +fetch
+$x->[0]->[1] = 1 # $x->[2]->[3] = 2 # '', 2, [ [ undef, 1 ], undef, [ undef, undef, undef, 2 ] ] # +fetch
+$x->[0]->[1] = 1 # $x->[0]->[1] = 2 # '', 2, [ [ undef, 2 ] ] # +exists
+$x->[0]->[1] = 1 # $x->[0]->[3] = 2 # '', 2, [ [ undef, 1, undef, 2 ] ] # +exists
+$x->[0]->[1] = 1 # $x->[2]->[3] = 2 # '', 2, [ [ undef, 1 ], undef, [ undef, undef, undef, 2 ] ] # +exists
+$x->[0]->[1] = 1 # $x->[0]->[1] = 2 # '', 2, [ [ undef, 2 ] ] # +delete
+$x->[0]->[1] = 1 # $x->[0]->[3] = 2 # '', 2, [ [ undef, 1, undef, 2 ] ] # +delete
+$x->[0]->[1] = 1 # $x->[2]->[3] = 2 # '', 2, [ [ undef, 1 ], undef, [ undef, undef, undef, 2 ] ] # +delete
+$x->[0]->[1] = 1 # $x->[0]->[1] = 2 # '', 2, [ [ undef, 2 ] ] # +store
+$x->[0]->[1] = 1 # $x->[0]->[3] = 2 # '', 2, [ [ undef, 1, undef, 2 ] ] # +store
+$x->[0]->[1] = 1 # $x->[2]->[3] = 2 # qr/^Can't vivify reference/, undef, [ [ undef, 1 ] ] # +store
+
+$x->[0]->[1] = 1 # $x->[0]->[1] = 2 # '', 2, [ [ undef, 2 ] ] # +strict +fetch
+$x->[0]->[1] = 1 # $x->[0]->[3] = 2 # '', 2, [ [ undef, 1, undef, 2 ] ] # +strict +fetch
+$x->[0]->[1] = 1 # $x->[2]->[3] = 2 # '', 2, [ [ undef, 1 ], undef, [ undef, undef, undef, 2 ] ] # +strict +fetch
+$x->[0]->[1] = 1 # $x->[0]->[1] = 2 # '', 2, [ [ undef, 2 ] ] # +strict +exists
+$x->[0]->[1] = 1 # $x->[0]->[3] = 2 # '', 2, [ [ undef, 1, undef, 2 ] ] # +strict +exists
+$x->[0]->[1] = 1 # $x->[2]->[3] = 2 # '', 2, [ [ undef, 1 ], undef, [ undef, undef, undef, 2 ] ] # +strict +exists
+$x->[0]->[1] = 1 # $x->[0]->[1] = 2 # '', 2, [ [ undef, 2 ] ] # +strict +delete
+$x->[0]->[1] = 1 # $x->[0]->[3] = 2 # '', 2, [ [ undef, 1, undef, 2 ] ] # +strict +delete
+$x->[0]->[1] = 1 # $x->[2]->[3] = 2 # '', 2, [ [ undef, 1 ], undef, [ undef, undef, undef, 2 ] ] # +strict +delete
+$x->[0]->[1] = 1 # $x->[0]->[1] = 2 # '', 2, [ [ undef, 2 ] ] # +strict +store
+$x->[0]->[1] = 1 # $x->[0]->[3] = 2 # '', 2, [ [ undef, 1, undef, 2 ] ] # +strict +store
+$x->[0]->[1] = 1 # $x->[2]->[3] = 2 # qr/^Reference vivification forbidden/, undef, [ [ undef, 1 ] ] # +strict +store