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no if $] > 5.018000, warnings => qw(experimental);
use Test::More;
BEGIN {
$] >= 5.010 or plan skip_all => "test requires Perl >= 5.010";
$] < 5.023 or plan skip_all => "test requires Perl < 5.023";
plan tests => 6;
};
use lexical::underscore;
sub foo {
my $_ = 101;
bar();
is($_, 42);
}
sub bar {
$_ = 102;
baz();
}
sub baz {
my $_ = 103;
quux();
}
sub quux {
my $_ = 104;
is(${ lexical::underscore() }, 103);
is(${ lexical::underscore(-1) }, 104);
is(${ lexical::underscore(0) }, 103);
is(${ lexical::underscore(1) }, 102);
is(${ lexical::underscore(2) }, 101);
${ lexical::underscore(2) } = 42;
}
foo();
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