Alt-Lexical-Var-ButSupportModernPerl/t/scalar_scope.t
use warnings;
use strict;
use Test::More tests => 84;
BEGIN { $^H |= 0x20000 if "$]" < 5.008; }
$SIG{__WARN__} = sub {
return if $_[0] =~ /\AVariable \"\$foo\" is not imported /;
return if $_[0] =~ /\AAttempt to free unreferenced scalar[ :]/ &&
"$]" < 5.008004;
die "WARNING: $_[0]";
};
our @values;
@values = ();
eval q{
use strict;
push @values, $foo;
};
isnt $@, "";
is_deeply \@values, [];
@values = ();
eval q{
no strict;
push @values, $foo;
};
is $@, "";
is_deeply \@values, [ undef ];
@values = ();
eval q{
use strict;
use Lexical::Var '$foo' => \(my$x=1);
push @values, $foo;
};
is $@, "";
is_deeply \@values, [ 1 ];
@values = ();
eval q{
use strict;
use Lexical::Var '$foo' => \(my$x=1);
use Lexical::Var '$foo' => \(my$x=2);
push @values, $foo;
};
is $@, "";
is_deeply \@values, [ 2 ];
@values = ();
eval q{
use strict;
use Lexical::Var '$foo' => \(my$x=1);
{
push @values, $foo;
}
};
is $@, "";
is_deeply \@values, [ 1 ];
@values = ();
eval q{
use strict;
use Lexical::Var '$foo' => \(my$x=1);
{ ; }
push @values, $foo;
};
is $@, "";
is_deeply \@values, [ 1 ];
@values = ();
eval q{
use strict;
{
use Lexical::Var '$foo' => \(my$x=1);
}
push @values, $foo;
};
isnt $@, "";
is_deeply \@values, [];
@values = ();
eval q{
no strict;
{
use Lexical::Var '$foo' => \(my$x=1);
}
push @values, $foo;
};
is $@, "";
is_deeply \@values, [ undef ];
@values = ();
eval q{
use strict;
use Lexical::Var '$foo' => \(my$x=1);
{
use Lexical::Var '$foo' => \(my$x=2);
push @values, $foo;
}
};
is $@, "";
is_deeply \@values, [ 2 ];
@values = ();
eval q{
use strict;
use Lexical::Var '$foo' => \(my$x=1);
{
use Lexical::Var '$foo' => \(my$x=2);
}
push @values, $foo;
};
is $@, "";
is_deeply \@values, [ 1 ];
@values = ();
eval q{
use strict;
use Lexical::Var '$foo' => \(my$x=1);
{
use Lexical::Var '$foo' => \(my$x=2);
push @values, $foo;
}
push @values, $foo;
};
is $@, "";
is_deeply \@values, [ 2, 1 ];
@values = ();
eval q{
use strict;
use Lexical::Var '$foo' => \(my$x=1);
package wibble;
push @values, $foo;
};
is $@, "";
is_deeply \@values, [ 1 ];
@values = ();
eval q{
use strict;
package wibble;
use Lexical::Var '$foo' => \(my$x=1);
push @values, $foo;
};
is $@, "";
is_deeply \@values, [ 1 ];
@values = ();
eval q{
use strict;
package wibble;
use Lexical::Var '$foo' => \(my$x=1);
package main;
push @values, $foo;
};
is $@, "";
is_deeply \@values, [ 1 ];
@values = ();
eval q{
use strict;
use Lexical::Var '$foo' => \(my$x=1);
package wibble;
use Lexical::Var '$foo' => \(my$x=2);
push @values, $foo;
};
is $@, "";
is_deeply \@values, [ 2 ];
@values = ();
eval q{
use strict;
use Lexical::Var '$foo' => \(my$x=1);
package wibble;
use Lexical::Var '$foo' => \(my$x=2);
package main;
push @values, $foo;
};
is $@, "";
is_deeply \@values, [ 2 ];
@values = ();
eval q{
use strict;
use Lexical::Var '$foo' => \(my$x=1);
{
no Lexical::Var '$foo';
push @values, $foo;
}
};
isnt $@, "";
is_deeply \@values, [];
@values = ();
eval q{
no strict;
use Lexical::Var '$foo' => \(my$x=1);
{
no Lexical::Var '$foo';
push @values, $foo;
}
};
is $@, "";
is_deeply \@values, [ undef ];
@values = ();
eval q{
use strict;
use Lexical::Var '$foo' => \(my$x=1);
{
no Lexical::Var '$foo';
}
push @values, $foo;
};
is $@, "";
is_deeply \@values, [ 1 ];
@values = ();
eval q{
use strict;
use Lexical::Var '$foo' => \(my$x=1);
{
no Lexical::Var '$foo' => \$foo;
push @values, $foo;
}
};
isnt $@, "";
is_deeply \@values, [];
@values = ();
eval q{
no strict;
use Lexical::Var '$foo' => \(my$x=1);
{
no Lexical::Var '$foo' => \$foo;
push @values, $foo;
}
};
is $@, "";
is_deeply \@values, [ undef ];
@values = ();
eval q{
use strict;
use Lexical::Var '$foo' => \(my$x=1);
{
no Lexical::Var '$foo' => \$foo;
}
push @values, $foo;
};
is $@, "";
is_deeply \@values, [ 1 ];
@values = ();
eval q{
use strict;
use Lexical::Var '$foo' => \(my$x=1);
{
no Lexical::Var '$foo' => \(my$x=1);
push @values, $foo;
}
};
is $@, "";
is_deeply \@values, [ 1 ];
@values = ();
eval q{
use strict;
use Lexical::Var '$foo' => \(my$x=1);
{
no Lexical::Var '$foo' => \(my$x=1);
}
push @values, $foo;
};
is $@, "";
is_deeply \@values, [ 1 ];
@values = ();
eval q{
use strict;
use Lexical::Var '$foo' => \(my$x=1);
BEGIN { my $x = "foo\x{666}"; $x =~ /foo\p{Alnum}/; }
push @values, $foo;
};
is $@, "";
is_deeply \@values, [ 1 ];
@values = ();
eval q{
use strict;
use Lexical::Var '$foo' => \(my$x=1);
use t::scalar_0;
push @values, $foo;
};
isnt $@, "";
is_deeply \@values, [];
@values = ();
eval q{
no strict;
use Lexical::Var '$foo' => \(my$x=1);
use t::scalar_0n;
push @values, $foo;
};
is $@, "";
is_deeply \@values, [ undef, 1 ];
@values = ();
eval q{
use strict;
use Lexical::Var '$foo' => \(my$x=1);
use t::scalar_1;
push @values, $foo;
};
is $@, "";
is_deeply \@values, [ 1 ];
@values = ();
eval q{
use strict;
use Lexical::Var '$foo' => \(my$x=1);
use t::scalar_2;
push @values, $foo;
};
is $@, "";
is_deeply \@values, [ 2, 1 ];
@values = ();
eval q{
use strict;
use Lexical::Var '$foo' => \(my$x=1);
use t::scalar_3;
push @values, $foo;
};
is $@, "";
is_deeply \@values, [ 1 ];
@values = ();
eval q{
use strict;
use Lexical::Var '$foo' => \(my$x=1);
use t::scalar_4;
push @values, $foo;
};
isnt $@, "";
is_deeply \@values, [];
@values = ();
eval q{
no strict;
use Lexical::Var '$foo' => \(my$x=1);
use t::scalar_4n;
push @values, $foo;
};
is $@, "";
is_deeply \@values, [ undef, 1 ];
SKIP: { skip "no lexical propagation into string eval", 12 if "$]" < 5.009003;
@values = ();
eval q{
use strict;
use Lexical::Var '$foo' => \(my$x=1);
eval q{
use strict;
push @values, $foo;
};
};
is $@, "";
is_deeply \@values, [ 1 ];
@values = ();
eval q{
use strict;
eval q{
use strict;
use Lexical::Var '$foo' => \(my$x=1);
};
push @values, $foo;
};
isnt $@, "";
is_deeply \@values, [];
@values = ();
eval q{
no strict;
eval q{
no strict;
use Lexical::Var '$foo' => \(my$x=1);
};
push @values, $foo;
};
is $@, "";
is_deeply \@values, [ undef ];
@values = ();
eval q{
use strict;
use Lexical::Var '$foo' => \(my$x=1);
eval q{
use strict;
use Lexical::Var '$foo' => \(my$x=2);
push @values, $foo;
};
};
is $@, "";
is_deeply \@values, [ 2 ];
@values = ();
eval q{
use strict;
use Lexical::Var '$foo' => \(my$x=1);
eval q{
use strict;
use Lexical::Var '$foo' => \(my$x=2);
};
push @values, $foo;
};
is $@, "";
is_deeply \@values, [ 1 ];
@values = ();
eval q{
use strict;
use Lexical::Var '$foo' => \(my$x=1);
eval q{
use strict;
use Lexical::Var '$foo' => \(my$x=2);
push @values, $foo;
};
push @values, $foo;
};
is $@, "";
is_deeply \@values, [ 2, 1 ];
}
@values = ();
eval q{
use strict;
use Lexical::Var '$foo' => \(my$x=1);
push @values, $foo;
{
my $foo = 2;
push @values, $foo;
use Lexical::Var '$foo' => \(my$x=3);
push @values, $foo;
}
push @values, $foo;
};
is $@, "";
is_deeply \@values, [ 1, 2, 3, 1 ];
@values = ();
eval q{
use strict;
BEGIN { $SIG{__WARN__} = sub {}; } # bogus redefinition warning
my $foo = 1;
push @values, $foo;
{
use Lexical::Var '$foo' => \(my$x=2);
push @values, $foo;
my $foo = 3;
push @values, $foo;
}
push @values, $foo;
};
is $@, "";
is_deeply \@values, [ 1, 2, 3, 1 ];
@values = ();
eval q{
use strict;
use Lexical::Var '$foo' => \(my$x=1);
push @values, $foo;
{
our $foo;
push @values, $foo;
use Lexical::Var '$foo' => \(my$x=3);
push @values, $foo;
}
push @values, $foo;
};
is $@, "";
is_deeply \@values, [ 1, undef, 3, 1 ];
@values = ();
eval q{
use strict;
BEGIN { $SIG{__WARN__} = sub {}; } # bogus redefinition warning
our $foo;
push @values, $foo;
{
use Lexical::Var '$foo' => \(my$x=2);
push @values, $foo;
our $foo;
push @values, $foo;
}
push @values, $foo;
};
is $@, "";
is_deeply \@values, [ undef, 2, undef, undef ];
1;