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use strict;
use warnings;
use Test::More tests => 4;
use vars qw/@warnings/;
BEGIN { $SIG{__WARN__} = sub { push @warnings, $_ } }
{
use signatures;
sub foo ($x) { }
}
BEGIN { is(@warnings, 0, 'no prototype warnings with signatures in scope') }
sub bar ($x) { }
BEGIN { is(@warnings, 1, 'warning without signatures in scope') }
use signatures;
sub baz ($x) { }
BEGIN { is(@warnings, 1, 'no more warnings') }
no signatures;
sub corge ($x) { }
BEGIN { is(@warnings, 2, 'disabling magic with unimport') }
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