BEGIN {
chdir 't' if -d 't';
- @INC = '../lib';
require './test.pl';
+ set_up_inc('../lib');
}
use strict;
'Assignment should not ignore magic when the last thing assigned was a glob');
expected_tie_calls(tied $c, 1, 1);
+package o { use overload '""' => sub { "foo\n" } }
+$c = bless [], o::;
+chomp $c;
+expected_tie_calls(tied $c, 1, 2, 'chomping a ref');
+
+{
+ no warnings 'once'; # main::foo
+ my $outfile = tempfile();
+ open my $h, ">$outfile" or die "$0 cannot close $outfile: $!";
+ binmode $h;
+ print $h "bar\n";
+ close $h or die "$0 cannot close $outfile: $!";
+
+ $c = *foo; # 1 write
+ open $h, $outfile;
+ binmode $h;
+ sysread $h, $c, 3, 7; # 1 read; 1 write
+ is $c, "*main::bar", 'what sysread wrote'; # 1 read
+ expected_tie_calls(tied $c, 2, 2, 'calling sysread with tied buf');
+ close $h or die "$0 cannot close $outfile: $!";
+
+ unlink_all $outfile;
+}
+
# autovivication of aelem, helem, of rv2sv combined with get-magic
{
my $true = 1;
$$s = undef;
$$s->[0] = 73;
is($$s->[0], 73);
- expected_tie_calls(tied $$s, 2, 2);
+ expected_tie_calls(tied $$s, 3, 2);
my @a;
tie $a[0], "Tie::Monitor";
$a[0] = undef;
$a[0][0] = 73;
is($a[0][0], 73);
- expected_tie_calls(tied $a[0], 2, 2);
+ expected_tie_calls(tied $a[0], 3, 2);
my %h;
tie $h{foo}, "Tie::Monitor";
$h{foo} = undef;
$h{foo}{bar} = 73;
is($h{foo}{bar}, 73);
- expected_tie_calls(tied $h{foo}, 2, 2);
+ expected_tie_calls(tied $h{foo}, 3, 2);
# Similar tests, but with obscured autovivication by using dummy list or "?:" operator
$$s = undef;
${ (), $$s }[0] = 73;
is( $$s->[0], 73);
- expected_tie_calls(tied $$s, 2, 2);
+ expected_tie_calls(tied $$s, 3, 2);
$$s = undef;
( ! $true ? undef : $$s )->[0] = 73;
is( $$s->[0], 73);
- expected_tie_calls(tied $$s, 2, 2);
+ expected_tie_calls(tied $$s, 3, 2);
$$s = undef;
( $true ? $$s : undef )->[0] = 73;
is( $$s->[0], 73);
- expected_tie_calls(tied $$s, 2, 2);
+ expected_tie_calls(tied $$s, 3, 2);
}
# A plain *foo should not call get-magic on *foo.
$rsub = sub { if ($_[0]) { delete $_{elem} } else { &$rsub(1)->[3] } };
&$rsub;
expected_tie_calls $tied_to, 1, 0,
- 'mortal magic var is implicitly returned in autoviv context';
+ 'mortal magic var is implicitly returned in recursive autoviv context';
$tied_to = tie $_{elem}, "Tie::Monitor";
$rsub = sub {
};
&$rsub;
expected_tie_calls $tied_to, 1, 0,
- 'mortal magic var is explicitly returned in autoviv context';
+ 'mortal magic var is explicitly returned in recursive autoviv context';
+
+ $tied_to = tie $_{elem}, "Tie::Monitor";
+ my $x = \sub { delete $_{elem} }->();
+ expected_tie_calls $tied_to, 1, 0,
+ 'mortal magic var is implicitly returned to refgen';
+ is tied $$x, undef,
+ 'mortal magic var is copied when implicitly returned';
+
+ $tied_to = tie $_{elem}, "Tie::Monitor";
+ $x = \sub { return delete $_{elem} }->();
+ expected_tie_calls $tied_to, 1, 0,
+ 'mortal magic var is explicitly returned to refgen';
+ is tied $$x, undef,
+ 'mortal magic var is copied when explicitly returned';
+
+ $tied_to = tie $_{elem}, "Tie::Monitor";
+ $x = \do { 1; delete $_{elem} };
+ expected_tie_calls $tied_to, 1, 0,
+ 'mortal magic var from do passed to refgen';
+ is tied $$x, undef,
+ 'mortal magic var from do is copied';
+}
+
+# For better or worse, the order in which concat args are fetched varies
+# depending on their number. In A .= B.C.D, they are fetched in the order
+# BCDA, while for A .= B, the order is AB (so for a single concat, the LHS
+# tied arg is FETCH()ed first). Make sure multiconcat preserves current
+# behaviour.
+
+package Increment {
+ sub TIESCALAR { bless [0, 0] }
+ # returns a new value for each FETCH, until the first STORE
+ sub FETCH { my $x = $_[0][0]; $_[0][0]++ unless $_[0][1]; $x }
+ sub STORE { @{$_[0]} = ($_[1],1) }
+
+ my $t;
+ tie $t, 'Increment';
+ my $r;
+ $r = $t . $t;
+ ::is $r, '01', 'Increment 01';
+ $r = "-$t-$t-$t-";
+ ::is $r, '-2-3-4-', 'Increment 234';
+ $t .= "-$t-$t-$t-";
+ ::is $t, '8-5-6-7-', 'Increment 8567';
}
done_testing();